/* design.css — PR1 Entrenar session. Dark default. Fraunces out of chrome.
   chessground wood/cburnett CSS stays vendored and only paints .cg-wrap. */

:root{
  --bg:#121416;
  --bg-elev:#16181C;
  --surface:#1C1E22;
  --surface-2:#23262B;
  --surface-3:#2A2D33;
  --ink:#ECECE4;
  --ink-soft:#C4C4BA;
  --ink-faint:#9A9A90;
  --line:#2A2D33;
  --line-strong:#3A3E46;
  --accent:#6AA4E8;
  --accent-hover:#8BB8EE;
  --accent-soft:rgba(106,164,232,.14);
  --accent-2:#6AA4E8;
  --accent-ink:#121416;
  --good:#5BB98A;
  --warn:#D1AB45;
  --bad:#E07068;
  --sp-xs:4px; --sp-sm:8px; --sp-md:12px; --sp-lg:16px; --sp-xl:24px; --sp-2xl:32px;
  --sp-xxl:48px; --sp-section:64px;
  --radius:8px;
  --radius-sm:4px;
  --radius-lg:12px;
  --evalbar-bg:#2a2a28;
  --evalbar-fill:#e8e4da;
  --board-bg:#312e2b;
  --font:"DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:var(--font);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --fz:16px; --lh:1.62;
  --fs-12:12px; --fs-14:14px; --fs-16:16px; --fs-20:20px; --fs-28:28px;
  --header-h:48px;
  --nav-h:56px;
  --chrome-ms:180ms;
  --shadow:0 1px 0 rgba(0,0,0,.35), 0 8px 24px rgba(0,0,0,.18);
  --shadow-lg:0 18px 48px rgba(0,0,0,.42);
  --tile-shadow:0 8px 28px rgba(0,0,0,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --prose:min(66ch, 36em);
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#F6F4EF;
  --bg-elev:#EFEBE2;
  --surface:#FFFEFC;
  --surface-2:#F2EEE5;
  --surface-3:#E7E0D2;
  --ink:#211D16;
  --ink-soft:#464038;
  --ink-faint:#6B6455;
  --line:#E5E5E8;
  --line-strong:#D4D4D8;
  --accent:#2B6CB0;
  --accent-hover:#1A4F8A;
  --accent-soft:rgba(43,108,176,.1);
  --accent-2:#2B6CB0;
  --accent-ink:#F9F6EF;
  --good:#1A6840;
  --warn:#7D5E10;
  --bad:#A33A32;
  --evalbar-bg:#3a3a38;
  --evalbar-fill:#f5f5f0;
  --shadow:0 1px 2px rgba(33,29,22,.06), 0 8px 24px rgba(33,29,22,.08);
  --shadow-lg:0 18px 48px rgba(33,29,22,.12);
  --tile-shadow:0 8px 24px rgba(33,29,22,.1);
  color-scheme:light;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:var(--fz)/var(--lh) var(--font);
  text-rendering:optimizeLegibility; -webkit-font-smoothing:antialiased;
  transition:background .25s var(--ease), color .2s var(--ease);
}
::selection{background:color-mix(in srgb, var(--accent) 35%, var(--surface)); color:var(--ink)}
a{color:var(--accent); text-decoration:underline; text-decoration-color:color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset:2px; transition:color 160ms var(--ease), text-decoration-color 160ms var(--ease)}
a:hover{color:var(--accent-hover); text-decoration-color:var(--accent-hover)}
a:focus-visible, button:focus-visible, summary:focus-visible, select:focus-visible{
  outline:2px solid var(--accent); outline-offset:2px; border-radius:4px;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important}
}

/* Loading skeleton */
@keyframes shimmer{0%{background-position:-200% 0} 100%{background-position:200% 0}}
.skeleton{
  background:linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size:200% 100%; animation:shimmer 1.5s infinite; border-radius:var(--radius);
}
.skeleton-text{height:14px; margin-bottom:8px; width:80%}
.skeleton-text.short{width:50%}
.skeleton-block{height:120px; margin-bottom:16px}
#loadingOverlay{
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  min-height:60vh; gap:16px; padding:32px; text-align:center;
}
#loadingOverlay .skeleton-block{width:min(400px, 80vw)}
#loadingOverlay p{font:600 14px var(--font); color:var(--ink-soft); margin:0}
::-webkit-scrollbar{width:11px; height:11px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--line-strong); border-radius:20px; border:3px solid var(--bg); background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:var(--ink-faint); background-clip:padding-box}
*{scrollbar-color:var(--line-strong) transparent; scrollbar-width:thin}
.muted{color:var(--ink-soft)}
.num{font-variant-numeric:tabular-nums}
.sec-title{
  font:650 15px/1.35 var(--font); letter-spacing:0;
  color:var(--ink); margin:0 0 4px;
}
.sec-lead{margin:0 0 14px; font-size:14.5px; color:var(--ink-soft); max-width:42em; line-height:1.55}
.sec-block{margin-bottom:var(--sp-2xl); padding-top:4px}
.sec-block + .sec-block{border-top:1px solid var(--line); padding-top:var(--sp-2xl)}

/* Header — franja editorial del cuaderno */
header{
  padding:14px 22px 12px; border-bottom:1px solid var(--line-strong);
  background:color-mix(in srgb, var(--surface) 92%, transparent);
}
header .header-top{display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap}
.brand{
  display:flex; align-items:center; gap:10px; text-decoration:none; color:inherit;
}
.brand-mark{
  width:44px; height:44px; flex:0 0 auto; border-radius:11px;
  background:var(--surface); border:1px solid var(--line-strong);
}
.brand-mark .pawn{fill:var(--accent)}
.brand-mark .bg{fill:var(--bg)}
.brand-mark .plate{fill:var(--surface); stroke:var(--line-strong)}
.brand-text{display:flex; flex-direction:column; gap:4px; min-width:0}
.brand-text .name{
  margin:0; font:650 28px/1.1 var(--font); letter-spacing:-.025em;
  color:var(--ink); font-variation-settings:"SOFT" 50, "WONK" 0;
}
.brand-text .name .pc{color:var(--accent)}
header .user-meta{
  font:650 15px/1.2 var(--font); color:var(--ink); font-variant-numeric:tabular-nums;
}
header .user-meta .lab{font-weight:500; color:var(--ink-soft); margin-right:4px}
.header-actions{display:flex; align-items:center; gap:6px}
.profile-group{display:flex; align-items:center; border:1px solid var(--line-strong); border-radius:var(--radius); overflow:hidden; background:var(--surface)}
.profile-group #profileBtn{border:none; border-radius:0; box-shadow:none; border-right:1px solid var(--line); flex:0 0 auto}
.profile-group #themeToggle{border:none; border-radius:0; box-shadow:none; width:34px; flex:0 0 auto}
.theme-toggle{
  width:34px; height:34px; border-radius:var(--radius); border:1px solid var(--line-strong);
  background:var(--surface); color:var(--ink-soft); cursor:pointer;
  display:flex; align-items:center; justify-content:center; font-size:14px;
  transition:background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease), transform 120ms var(--ease);
}
.theme-toggle:hover{border-color:var(--accent); color:var(--accent)}
.theme-toggle:active{transform:translateY(1px)}
.refresh-progress{display:flex; align-items:center; gap:8px; flex:1 1 220px; min-width:0; max-width:420px; margin:0 8px; padding:6px 10px; border:1px solid color-mix(in srgb, var(--accent) 22%, var(--line)); background:color-mix(in srgb, var(--accent) 8%, var(--surface)); border-radius:var(--radius); font-size:12.5px; color:var(--ink-soft)}
.refresh-progress .rp-bar{flex:1; height:6px; background:var(--surface-3); border-radius:3px; overflow:hidden; min-width:60px}
.refresh-progress .rp-bar i{display:block; height:100%; background:var(--accent); width:0; transition:width .4s var(--ease)}
.refresh-progress .rp-text{white-space:nowrap; font-weight:600; color:var(--ink)}
.refresh-progress .rp-text small{font-weight:500; color:var(--ink-soft); margin-left:4px}
.hero-strip{
  display:flex; align-items:baseline; gap:0; flex-wrap:wrap; margin-top:12px;
  font-size:13.5px; color:var(--ink-soft); border-top:1px solid var(--line); padding-top:10px;
  overflow-x:auto; scrollbar-width:none;
}
.hero-strip::-webkit-scrollbar{display:none}
.hero-strip .chip{
  display:inline-flex; align-items:baseline; gap:6px; padding:0 14px 0 0; margin-right:14px;
  border:none; background:none; border-radius:0; font-size:13.5px; color:var(--ink-soft);
  box-shadow:none;
}
.hero-strip .chip + .chip{border-left:1px solid var(--line); padding-left:14px; margin-left:0}
/* En Entrenar el hero sobra: priorizar tablero */
body.tab-entrenar .hero-strip{display:none !important}
body.tab-entrenar header{padding:8px 12px 6px}
body.tab-entrenar .brand-text .name{font-size:22px}
body.tab-entrenar .brand-mark{width:36px; height:36px; border-radius:9px}
body.tab-entrenar .user-meta{font-size:13px}
body.tab-entrenar .header-nav button{padding:9px 11px; font-size:12.5px}
body.tab-entrenar main{padding:10px 12px 16px; max-width:none}
.hero-strip .chip b{color:var(--ink); font-weight:700; font-variant-numeric:tabular-nums}
#profileBtn.needs-offline{position:relative}
#profileBtn.needs-offline::after{
  content:''; position:absolute; top:2px; right:2px; width:7px; height:7px;
  border-radius:50%; background:var(--accent); border:1.5px solid var(--surface);
}
#offlineBadge{
  display:none; font-size:12px; font-weight:600; color:var(--warn);
  background:color-mix(in srgb, var(--warn) 14%, var(--surface));
  border:1px solid color-mix(in srgb, var(--warn) 35%, var(--line));
  padding:4px 10px; border-radius:var(--radius);
}
.offline-bar{
  display:none; align-items:flex-start; flex-wrap:wrap; gap:10px 14px;
  margin:0 0 16px; padding:12px 14px; border-radius:var(--radius-lg);
  border:1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  background:var(--accent-soft); font-size:13.5px; color:var(--ink-soft); line-height:1.5;
}
.offline-bar.show{display:flex}
.offline-bar b{color:var(--ink)}
.offline-bar .ob-copy{flex:1 1 220px; min-width:0}
.offline-bar.tone-ok{border-color:color-mix(in srgb, var(--good) 40%, var(--line)); background:color-mix(in srgb, var(--good) 10%, var(--surface))}
.offline-bar.tone-bad{border-color:color-mix(in srgb, var(--bad) 40%, var(--line)); background:color-mix(in srgb, var(--bad) 10%, var(--surface))}
.plan-delta{
  margin:0 0 22px; padding:16px 18px; border-radius:var(--radius-lg);
  border:1px solid var(--line-strong); background:var(--surface);
}
.plan-delta h3{margin:0 0 6px; font:650 15px/1.35 var(--font); color:var(--ink)}
.plan-delta .pd-lead{margin:0 0 14px; font-size:14px; color:var(--ink-soft); max-width:46em}
.plan-delta .pd-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:var(--sp-lg)}
.plan-delta .pd-item .lab{font-size:11.5px; font-weight:650; letter-spacing:.04em; text-transform:uppercase; color:var(--ink-faint); margin:0 0 4px}
.plan-delta .pd-item p{margin:0; font-size:14px; color:var(--ink); line-height:1.45}
.plan-delta .pd-item p.soft{color:var(--ink-soft); font-size:13.5px}
.plan-delta .pd-list{margin:12px 0 0; padding:0; list-style:none}
.plan-delta .pd-list li{padding:8px 0; border-top:1px solid var(--line); font-size:13.5px; color:var(--ink-soft); line-height:1.45}
.plan-delta .pd-list li b{color:var(--ink); font-weight:650}
.pill.offline-ok{background:color-mix(in srgb, var(--good) 18%, var(--surface)); color:var(--good)}
.pill.online-only{background:var(--surface-3); color:var(--ink-faint)}

/* Tabs — índice del cuaderno */
.header-nav{
  display:flex; gap:0; padding:0; border-bottom:none;
  position:static; background:transparent;
  backdrop-filter:none; z-index:5; overflow-x:auto;
}
.header-nav button{
  position:relative;
  background:none; color:var(--ink-soft); border:none; border-bottom:2px solid transparent;
  padding:12px 14px; cursor:pointer; font:600 13.5px var(--font); white-space:nowrap;
  transition:color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}
.header-nav button .n{
  display:inline-block; margin-left:6px; font:700 11px var(--font); color:var(--accent-ink);
  background:var(--accent); border-radius:var(--radius-sm); padding:1px 6px; vertical-align:2px;
}
.header-nav button.on{color:var(--ink); border-bottom-color:var(--accent); font-weight:700}
.header-nav button:hover:not(.on){color:var(--ink); background:color-mix(in srgb, var(--accent) 6%, transparent)}
.header-nav button:focus-visible{outline:2px solid var(--accent); outline-offset:-2px; border-radius:var(--radius-sm)}

main{padding:28px 24px 48px; max-width:1040px; margin:0 auto}
.tab{display:none}
.tab.on{display:block; animation:tabIn .2s var(--ease)}
@keyframes tabIn{from{opacity:0; transform:translateY(3px)} to{opacity:1; transform:none}}
#learnContent.learn-pane{animation:learnPaneIn .4s var(--ease)}
@keyframes learnPaneIn{from{opacity:0; transform:translateY(12px)} to{opacity:1; transform:none}}

/* Cards & grids */
.grid{display:grid; gap:12px; align-items:stretch}
.cols-2{grid-template-columns:repeat(2, minmax(0,1fr))}
.cols-3{grid-template-columns:repeat(3, minmax(0,1fr))}
.card-grid{display:grid; gap:12px; grid-template-columns:repeat(auto-fill, minmax(260px, 1fr)); align-items:stretch}
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:16px 18px; cursor:default;
  transition:border-color 160ms var(--ease), background 160ms var(--ease), transform 120ms var(--ease);
  min-width:0;
}
.card.interactive{cursor:pointer}
.card.interactive:hover{
  border-color:color-mix(in srgb, var(--accent) 45%, var(--line));
  background:color-mix(in srgb, var(--accent-soft) 40%, var(--surface));
  box-shadow:var(--tile-shadow);
}
.card.interactive:active{transform:translateY(1px)}
.card.interactive:focus-visible{outline:2px solid var(--accent); outline-offset:2px}
.card.card-sm{
  min-height:120px; display:flex; flex-direction:column; gap:8px;
}
.card.card-sm .card-excerpt{
  flex:1; font-size:13.5px; color:var(--ink-soft); line-height:1.45;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.card.card-sm .card-foot{
  margin-top:auto; font-size:13px; font-weight:600; color:var(--ink-soft);
}
.card h2, .card h3{
  margin:0 0 10px; font-size:13px; color:var(--ink-soft); font-weight:650;
  letter-spacing:0;
}
/* Siguiente paso — única acción dominante en Inicio */
.next-step{
  display:grid; gap:14px; grid-template-columns:1fr auto; align-items:center;
  padding:22px 24px; margin-bottom:8px;
  background:var(--surface); border:1px solid var(--line-strong);
  border-left:3px solid var(--line-strong); border-radius:var(--radius-lg);
}
.next-step .ns-kicker{
  font:650 12px var(--font); letter-spacing:.04em; text-transform:uppercase;
  color:var(--ink-soft); margin:0 0 6px;
}
.next-step .ns-title{
  font:600 22px/1.3 var(--font); margin:0 0 6px; letter-spacing:-.025em; color:var(--ink);
}
.next-step .ns-why{margin:0; font-size:15px; color:var(--ink-soft); max-width:40em; line-height:1.55}
.next-step .ns-actions{display:flex; flex-direction:column; gap:8px; align-items:stretch}
@media (max-width:640px){
  .next-step{grid-template-columns:1fr}
  .next-step .ns-actions{flex-direction:row; flex-wrap:wrap}
}
.row-list{border:1px solid var(--line); border-radius:var(--radius-lg); background:var(--surface); overflow:hidden}
.row-item{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:12px 14px; border-bottom:1px solid var(--line); cursor:pointer;
  transition:background .12s;
}
.row-item:last-child{border-bottom:none}
.row-item:hover{background:var(--surface-2)}
.row-item:focus-visible{outline:2px solid var(--accent); outline-offset:-2px}
.row-item .ri-main{min-width:0; flex:1}
.row-item .ri-title{font:650 14.5px/1.3 var(--font)}
.row-item .ri-sub{font-size:12.5px; color:var(--ink-soft); margin-top:2px}
.row-item .ri-meta{font:650 14px var(--font); font-variant-numeric:tabular-nums; color:var(--ink-soft); white-space:nowrap}
.hero-panel{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:20px 22px; margin-bottom:var(--sp-lg);
  border-left:3px solid var(--line-strong);
}
.hero-panel .objective{font:600 20px/1.4 var(--font); margin:0 0 10px; letter-spacing:-.02em; font-style:normal; color:var(--ink)}
.plan-state-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:16px 18px; margin-bottom:var(--sp-lg);
  border-left:3px solid var(--accent);
}
.kpi-row{display:flex; flex-wrap:wrap; gap:1px; margin-bottom:14px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius)}
.kpi{
  flex:1 1 120px; background:var(--surface-2); border:none;
  border-radius:0; padding:12px 14px;
}
.kpi .lab{font:650 11px var(--font); color:var(--ink-faint); letter-spacing:.03em}
.kpi .val{font:700 22px/1.2 var(--font); font-variant-numeric:tabular-nums; margin-top:4px}
.kpi .sub{font-size:12.5px; color:var(--ink-soft); margin-top:2px}
.pf-row{display:flex; justify-content:space-between; align-items:center; padding:6px 0; border-bottom:1px solid var(--line); font-size:13.5px}
.pf-row:last-child{border-bottom:none}

.pill{
  display:inline-flex; align-items:center; gap:4px; padding:2.5px 8px; border-radius:20px;
  font-size:11.5px; font-weight:650; letter-spacing:.01em; background:var(--surface-3); color:var(--ink-soft);
}
.pill.blunder{background:color-mix(in srgb, var(--bad) 18%, var(--surface)); color:var(--bad)}
.pill.mistake{background:color-mix(in srgb, var(--warn) 20%, var(--surface)); color:var(--warn)}
.pill.inaccuracy{background:var(--surface-3); color:var(--ink-soft)}
.pill.due,.pill.mastered{background:color-mix(in srgb, var(--good) 18%, var(--surface)); color:var(--good)}
.pill.focus{background:var(--accent); color:var(--accent-ink)}
.pill.tone-bad{background:color-mix(in srgb, var(--bad) 18%, var(--surface)); color:var(--bad)}
.pill.tone-warn{background:color-mix(in srgb, var(--warn) 20%, var(--surface)); color:var(--warn)}
.pill.tone-neutral{background:var(--surface-3); color:var(--ink-soft)}
.pill.pat-tactica{background:color-mix(in srgb, var(--accent-2) 16%, var(--surface)); color:var(--accent-2)}
.pill.pat-posicional{background:color-mix(in srgb, var(--ink-soft) 14%, var(--surface)); color:var(--ink-soft)}

table{width:100%; border-collapse:collapse; font-size:13.5px; display:block; overflow-x:auto}
th,td{text-align:left; padding:8px 8px; border-bottom:1px solid var(--line)}
td{font-variant-numeric:tabular-nums}
th{color:var(--ink-faint); font-weight:600; font-size:11px; text-transform:uppercase; letter-spacing:.04em}
tr:last-child td{border-bottom:none}
tr{transition:background .12s}
tbody tr:hover td{background:var(--surface-2)}

.hbar-row{display:grid; grid-template-columns:130px 1fr 40px; align-items:center; gap:10px; padding:6px 0}
.hbar-row .lbl{font-size:13.5px; color:var(--ink-soft)}
.hbar-track{height:7px; background:var(--surface-3); border-radius:var(--radius-sm); overflow:hidden}
.hbar-fill{height:100%; background:var(--accent); border-radius:var(--radius-sm); min-width:3px; transition:width .4s var(--ease)}
.hbar-row .val{font:600 12.5px var(--font); font-variant-numeric:tabular-nums; text-align:right}
.stack-row{margin:12px 0}
.stack-row .lbl{display:flex; justify-content:space-between; font-size:13.5px; color:var(--ink-soft); margin-bottom:5px}
.stack-bar{height:12px; border-radius:var(--radius-sm); display:flex; gap:2px; overflow:hidden; background:var(--surface-3)}
.stack-bar > i{display:block; height:100%}
.legend{display:flex; gap:14px; margin-top:10px; flex-wrap:wrap}
.legend span{display:inline-flex; align-items:center; gap:6px; font-size:12.5px; color:var(--ink-soft)}
.legend i{width:9px; height:9px; border-radius:var(--radius-sm); display:inline-block}
.tooltip{
  position:fixed; pointer-events:none; background:var(--ink); color:var(--bg);
  font-size:12px; padding:7px 10px; border-radius:var(--radius); z-index:50; opacity:0;
  transition:opacity .12s; font-variant-numeric:tabular-nums; max-width:240px;
  box-shadow:var(--shadow-lg);
}
.tooltip.show{opacity:1}

/* Modal — size follows content */
dialog.modal{
  border:none; border-radius:var(--radius-lg); padding:0;
  width:fit-content; max-width:min(560px, 92vw);
  min-width:min(280px, 92vw);
  max-height:min(85vh, 900px);
  background:var(--surface); color:var(--ink);
  box-shadow:var(--shadow-lg); overflow:hidden;
  margin:auto;
  opacity:0; transform:scale(.92);
  transition:opacity 380ms var(--ease), transform 380ms var(--ease),
    overlay 380ms allow-discrete, display 380ms allow-discrete;
}
dialog.modal[open]{opacity:1; transform:scale(1)}
@starting-style{
  dialog.modal[open]{opacity:0; transform:scale(.92)}
}
dialog.modal.modal-sm{max-width:min(380px, 92vw)}
dialog.modal.modal-md{max-width:min(480px, 92vw)}
dialog.modal.modal-lg{max-width:min(640px, 94vw)}
dialog.modal::backdrop{
  background:rgba(10,12,16,.5);
  backdrop-filter:blur(16px) saturate(1.2);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  opacity:0;
  transition:opacity 350ms var(--ease), overlay 350ms allow-discrete, display 350ms allow-discrete;
}
dialog.modal[open]::backdrop{opacity:1}
@starting-style{
  dialog.modal[open]::backdrop{opacity:0}
}
html:not([data-theme="light"]) dialog.modal::backdrop{background:rgba(0,0,0,.62)}
.modal-wrap{display:flex; flex-direction:column; max-height:min(85vh, 900px)}
.modal-head{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:14px 18px; border-bottom:1px solid var(--line); background:var(--surface-2);
}
.modal-head h3{margin:0; font-size:16px; font-weight:700; letter-spacing:-.02em; line-height:1.3}
.modal-close{
  background:none; border:none; font-size:22px; color:var(--ink-faint);
  cursor:pointer; width:34px; height:34px; display:flex; align-items:center; justify-content:center;
  border-radius:var(--radius); flex-shrink:0; transition:background 160ms var(--ease), color 160ms var(--ease), transform 120ms var(--ease);
}
.modal-close:hover{background:var(--surface-3); color:var(--ink)}
.modal-close:active{transform:translateY(1px)}
.modal-close:focus-visible{outline:2px solid var(--accent); outline-offset:-1px}
.modal-body{
  padding:16px 18px 18px; overflow-y:auto; font-size:14.5px; line-height:1.55;
}
.modal-body > :first-child{margin-top:0}
.modal-body > :last-child{margin-bottom:0}

.seg-control{
  display:flex; gap:2px; margin-bottom:var(--sp-lg); padding:3px;
  background:var(--surface-2); border:1px solid var(--line); border-radius:var(--radius-lg);
  width:fit-content; max-width:100%;
}
.seg-control button{
  border:none; background:transparent; padding:8px 16px; border-radius:calc(var(--radius-lg) - 3px);
  font:600 13.5px var(--font); color:var(--ink-soft); cursor:pointer; transition:background .12s,color .12s;
}
.seg-control button.on{background:var(--surface); color:var(--ink); border:1px solid var(--line)}
.seg-control button:hover:not(.on){color:var(--ink)}
.seg-control button:focus-visible{outline:2px solid var(--accent); outline-offset:-1px}

/* Trainer */
.t-toolbar{
  display:flex; flex-wrap:wrap; align-items:center; gap:8px;
  margin-bottom:14px; padding:10px 12px; background:var(--surface);
  border:1px solid var(--line); border-radius:var(--radius-lg);
  position:relative;
}
.t-toolbar .t-sum{font-size:13px; color:var(--ink-soft); margin-left:4px; flex:1 1 auto}
.t-toolbar .t-sum:empty{display:none}
.t-toolbar .active-chips{display:flex; flex-wrap:wrap; gap:5px}
.t-popover{
  display:none; position:absolute; top:calc(100% + 6px); left:12px; z-index:8;
  width:min(420px, calc(100vw - 48px)); max-height:70vh; overflow:auto;
  background:var(--surface); border:1px solid var(--line-strong); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg); padding:12px 14px;
  animation:tabIn .15s var(--ease);
}
.t-popover.open{display:block}
.t-popover .prow{margin:8px 0}
.t-popover .plab{font:700 10.5px var(--font); color:var(--ink-faint); text-transform:uppercase; letter-spacing:.05em; margin-bottom:6px}
.t-popover .chips{display:flex; flex-wrap:wrap; gap:6px}
.fchip{
  background:var(--surface-2); border:1px solid var(--line); color:var(--ink-soft);
  padding:4px 10px; border-radius:var(--radius-sm); font:600 12px var(--font); cursor:pointer;
  transition:background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease), transform 120ms var(--ease);
}
.fchip:hover{border-color:var(--accent); color:var(--ink)}
.fchip:active{transform:translateY(1px)}
.fchip:focus-visible{outline:2px solid var(--accent); outline-offset:1px}
.fchip.on{background:var(--accent); color:var(--accent-ink); border-color:var(--accent)}
.fchip .cnt{font-size:10.5px; opacity:.7; margin-left:3px}
select.t-select{
  font:600 12.5px var(--font); padding:6px 10px; border-radius:var(--radius);
  border:1px solid var(--line-strong); background:var(--surface); color:var(--ink); max-width:220px;
}
#filterBtn.on{background:var(--accent-soft); border-color:var(--accent); color:var(--accent)}

/*
 * Entrenar — layout simple y robusto:
 * [ tablero grande (izq) | panel info + feedback (der) ]
 * Feedback va DEBAJO del cuadro informativo, no debajo del tablero.
 * Chessground necesita width+height en px (hijos absolute).
 */
.trainer{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(260px,320px);
  gap:12px 16px;
  align-items:start;
  width:100%;
}
.board-col{
  min-width:0;
  display:flex;
  justify-content:center;
  align-items:flex-start;
  width:100%;
}
.trainer-side{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:10px;
  position:sticky;
  top:48px;
}
.trainer-fb{min-width:0}
#pinfo{min-width:0}
.board-wrap{
  display:flex;
  gap:24px; /* hueco para las coordenadas (a-h/1-8) fuera del tablero — ver resizeBoard() evalW */
  align-items:stretch;
  margin-bottom:20px; /* hueco para las letras (a-h) que quedan debajo del tablero */
  /* JS pone width/height exactos; fallback mínimo visible */
  min-width:200px;
  min-height:200px;
}
.evalbar-wrap{
  display:flex; flex-direction:column; align-items:center; gap:6px;
  flex-shrink:0; align-self:stretch; min-height:100%;
}
.evalbar-num{
  font:600 11px/1 var(--mono); color:var(--ink-soft);
  min-width:2.6em; text-align:center; letter-spacing:-.02em;
}
.evalbar{
  width:12px; flex:1 1 auto; min-height:120px; border-radius:var(--radius-sm); overflow:hidden; background:color-mix(in srgb, var(--accent) 14%, var(--evalbar-bg));
  display:flex; align-items:flex-end; flex-shrink:0;
}
.evalbar .fill{width:100%; background:var(--evalbar-fill); transition:height .4s var(--ease)}
#board.cg-wrap, #learnBoard.cg-wrap{
  position:relative;
  display:block;
  box-sizing:border-box;
  /* fallback si JS no corrió aún */
  width:min(100%, 560px);
  height:min(100vw, 560px);
  max-width:100%;
  border-radius:0;
  border:1px solid color-mix(in srgb, var(--accent) 20%, var(--line-strong));
  /* sin overflow:hidden: las coordenadas (coords.ranks/coords.files) de chessground
     se dibujan por fuera del tablero con offsets negativos — hidden las recortaría. */
  flex:0 0 auto;
  background:var(--board-bg);
}
/* Sin animación de “vuelve” en drops ilegales */
#board.cg-wrap piece, #learnBoard.cg-wrap piece{ transition:none; filter:drop-shadow(0 2px 2px rgba(0,0,0,.35)); }
#board.cg-wrap piece.ghost, #learnBoard.cg-wrap piece.ghost{ display:none !important; }
#fb{
  min-height:40px; font:600 15px/1.45 var(--font); margin:0;
  padding:12px 14px; border-radius:var(--radius);
  background:var(--surface); border:1px solid var(--line-strong);
  color:var(--ink);
}
#fb .ok{color:var(--good)} #fb .bad{color:var(--bad)}
#fb:empty{display:none}
#fb.tone-good{background:color-mix(in srgb, var(--good) 22%, var(--surface)); border-color:color-mix(in srgb, var(--good) 60%, var(--line-strong))}
#fb.tone-bad{background:color-mix(in srgb, var(--bad) 22%, var(--surface)); border-color:color-mix(in srgb, var(--bad) 60%, var(--line-strong))}
.move-strip{
  font-size:12.5px; color:var(--ink-faint); min-height:0;
  font-variant-numeric:tabular-nums; margin-top:6px; font-family:var(--mono);
}
.move-strip:empty{display:none}
body.tab-entrenar .t-toolbar{margin-bottom:10px; padding:6px 8px}
body.tab-entrenar .offline-bar{margin-bottom:8px; padding:8px 10px; font-size:12.5px}
.pinfo-card{padding:16px 18px}
/* Estado: una sola línea discreta (progreso + SRS), no un pilón de pills */
.pinfo-card .p-status{
  font:600 11.5px var(--font); color:var(--ink-faint); text-transform:uppercase; letter-spacing:.06em;
  margin-bottom:10px;
}
.pinfo-card .p-status .srs-word{text-transform:none; letter-spacing:0; font-weight:650; color:var(--ink-soft)}
.pinfo-card .p-status .srs-word.tone-warn{color:var(--warn)}
.pinfo-card .p-status .srs-word.tone-bad{color:var(--bad)}
.pinfo-card .p-status .srs-word.tone-good{color:var(--good)}
/* Consecuencia: texto claro, sin itálica display */
.pinfo-card .p-cons{
  font:600 16px/1.45 var(--font); color:var(--ink); margin:0 0 12px;
  padding-left:12px; border-left:3px solid var(--line-strong);
}
.pinfo-card .p-cons.tone-bad{border-left-color:var(--bad)}
.pinfo-card .p-cons.tone-warn{border-left-color:var(--warn)}
.pinfo-card .p-meta{font-size:13px; color:var(--ink-soft); margin:0 0 4px}
.pinfo-card .p-hist{font-size:12px; color:var(--ink-faint); margin:0 0 4px}
.pinfo-card details{margin-top:10px; font-size:13px; color:var(--ink-soft)}
.pinfo-card summary{cursor:pointer; font-weight:600; color:var(--ink-faint)}
.coach-notes{margin:12px 0 2px; padding:12px 14px; border-radius:var(--radius);
  background:var(--surface-2); border-left:3px solid var(--line-strong); font-size:14.5px; line-height:1.55; color:var(--ink)}
.coach-notes:empty{display:none; margin:0}
.coach-notes p{margin:0 0 6px}
.coach-notes p:last-child{margin:0}
.coach-notes .lab{font-size:12px; font-weight:650; letter-spacing:.02em;
  color:var(--ink-soft); margin-bottom:6px; text-transform:none}
.btnrow{display:flex; gap:8px; flex-wrap:wrap; margin-top:12px}
.btnrow.help-actions{margin-top:14px}
.btnrow.nav-actions{margin-top:10px; padding-top:10px; border-top:1px solid var(--line)}

.btn{
  background:var(--surface); color:var(--ink); border:1px solid var(--line);
  padding:10px 14px; border-radius:8px; cursor:pointer; font:650 13.5px/1.2 var(--font);
  transition:border-color 160ms var(--ease), background 160ms var(--ease), color 160ms var(--ease);
}
.btn:hover{border-color:var(--accent); background:var(--accent-soft)}
.btn:active{background:var(--surface-2)}
.btn.primary{background:var(--accent); color:var(--accent-ink); border-color:var(--accent)}
.btn.primary:hover{background:var(--accent-hover); border-color:var(--accent-hover); color:var(--accent-ink)}
.btn.sm{padding:5px 10px; font-size:12px}
.btn.ghost{background:transparent; border-color:transparent; color:var(--ink-soft); box-shadow:none}
.btn.ghost:hover{color:var(--accent); background:transparent; border-color:transparent}

/* Plan */
.plan-meta-line{
  display:flex; flex-wrap:wrap; align-items:center; gap:10px;
  font-size:12.5px; color:var(--ink-faint); margin-bottom:14px;
}
.plan-meta-line .spacer{flex:1}
.week-plan ul{margin:6px 0 0; padding-left:18px}
.week-plan li{margin:4px 0; font-size:14.5px}
.lesson-block{margin:10px 0; padding-left:10px; border-left:2px solid var(--accent-soft)}
.lesson-block .lab{font-size:11px; color:var(--accent); text-transform:uppercase; letter-spacing:.04em; font-weight:700; margin-bottom:2px}
.lesson-card h4{font:650 15.5px/1.3 var(--font); margin:0 0 6px; letter-spacing:-.02em}
.lesson-card p{margin:0; font-size:13.5px; color:var(--ink-soft)}
.res-what{font-size:13.5px; color:var(--ink-soft); margin:4px 0 0}
.res-why{font-size:12.5px; color:var(--ink-faint); margin:2px 0 0}

/* ===== Hub Aprender (estilo lichess Learn) ===== */
.learn-head{display:none}
.learn-diag{
  display:grid; gap:16px; grid-template-columns:repeat(auto-fill, minmax(220px, 1fr));
  margin:0 0 var(--sp-2xl); padding:16px 18px;
  border:1px solid var(--line-strong); border-radius:var(--radius-lg); background:var(--surface);
}
.learn-diag .ld-item{min-width:0}
.learn-diag .ld-k{font:650 10.5px var(--font); text-transform:uppercase; letter-spacing:.07em; color:var(--ink-faint); margin-bottom:3px}
.learn-diag .ld-v{font-size:13.5px; line-height:1.45; color:var(--ink)}
.learn-diag .ld-v b{color:var(--accent)}
.learn-lesson-grid{display:grid; gap:var(--sp-lg); grid-template-columns:repeat(auto-fill, minmax(250px, 1fr)); align-items:stretch}
.card.learn-lesson{padding:16px 18px; display:flex; flex-direction:column; gap:10px; cursor:pointer}
.learn-lesson:hover{
  border-color:color-mix(in srgb, var(--accent) 32%, var(--line));
}
.learn-lesson:active{transform:translateY(1px)}
.learn-topic-grid{display:grid; gap:var(--sp-lg); grid-template-columns:repeat(auto-fill, minmax(220px, 1fr)); margin:0 0 var(--sp-lg)}
.learn-biblio{margin:var(--sp-2xl) 0 var(--sp-xl); border:1px solid var(--line); border-radius:var(--radius-lg); background:var(--surface); padding:10px 14px}
.learn-biblio > summary{cursor:pointer; font:650 14px var(--font); padding:6px 0}
.learn-expl-more{margin-top:10px}
.learn-expl-more > summary{cursor:pointer; font:650 13px var(--font); color:var(--ink-soft)}
.learn-lesson .ll-title{font:650 15.5px/1.3 var(--font); letter-spacing:-.02em}
.learn-lesson .ll-sub{font-size:12.5px; color:var(--ink-faint); line-height:1.5}
.learn-lesson .ll-ex{display:none}
.learn-lesson .ll-foot{display:flex; justify-content:space-between; align-items:center; gap:8px; margin-top:auto}
.learn-lesson .ll-foot .pill{font-size:11px}
.learn-level-dots{display:flex; gap:4px}
.learn-level-dots i{width:8px; height:8px; border-radius:50%; background:var(--surface-3); border:1px solid var(--line-strong)}
.learn-level-dots i.done{background:var(--good); border-color:var(--good)}
.learn-level-dots i.cur{background:var(--accent); border-color:var(--accent)}
/* Reproductor de lección */
.learn-player-head{display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-bottom:14px}
.learn-player-head .lph-title{font:600 20px/1.25 var(--font); letter-spacing:-.02em; margin:0}
.learn-player-head .lph-meta{font-size:12.5px; color:var(--ink-faint)}
.learn-mode-seg{display:flex; border:1px solid var(--line-strong); border-radius:var(--radius); overflow:hidden; margin-left:auto}
.learn-mode-seg button{
  background:var(--surface-2); border:none; padding:7px 14px; font:650 12.5px var(--font);
  color:var(--ink-soft); cursor:pointer;
}
.learn-mode-seg button.on{background:var(--accent); color:var(--accent-ink)}
.learn-level-seg{display:flex; gap:6px}
.learn-level-seg button{
  background:var(--surface); border:1px solid var(--line-strong); border-radius:var(--radius);
  padding:6px 10px; font:650 12px var(--font); color:var(--ink-soft); cursor:pointer;
}
.learn-level-seg button.on{background:var(--accent); color:var(--accent-ink); border-color:var(--accent)}
.learn-body{
  display:grid; grid-template-columns:minmax(0,1fr) minmax(260px,320px);
  gap:24px; align-items:start; width:100%;
}
.learn-board-col{min-width:0; display:flex; flex-direction:column; align-items:center; width:100%}
.learn-board-wrap{
  display:flex; gap:24px; align-items:stretch; margin-bottom:20px;
  min-width:200px; min-height:200px;
}
.learn-side{flex:1 1 300px; min-width:260px; max-width:560px; display:flex; flex-direction:column; gap:12px}
.learn-fb{
  min-height:42px; font:600 14.5px/1.45 var(--font); margin:0;
  padding:11px 14px; border-radius:var(--radius);
  background:var(--surface); border:1px solid var(--line-strong);
}
.learn-fb.tone-good{background:color-mix(in srgb, var(--good) 12%, var(--surface)); border-color:color-mix(in srgb, var(--good) 45%, var(--line-strong))}
.learn-fb.tone-bad{background:color-mix(in srgb, var(--bad) 12%, var(--surface)); border-color:color-mix(in srgb, var(--bad) 45%, var(--line-strong))}
.learn-fb .ok{color:var(--good)} .learn-fb .bad{color:var(--bad)}
.learn-expl{border-left:3px solid var(--accent-soft); background:var(--surface-2); padding:12px 14px; border-radius:0 var(--radius) var(--radius) 0; font-size:14px; line-height:1.6; color:var(--ink)}
.learn-expl h5{margin:0 0 6px; font:700 13px var(--font); letter-spacing:.02em; color:var(--ink-soft)}
.learn-expl p{margin:0 0 8px}
.learn-expl p:last-child{margin:0}
.learn-expl ul{margin:6px 0 0; padding-left:18px}
.learn-expl li{margin:4px 0}
.learn-why{margin:0; padding:12px 14px; border-radius:var(--radius);
  background:var(--surface-2); border-left:3px solid var(--line-strong); font-size:14px; line-height:1.55; color:var(--ink)}
.learn-why b{color:var(--accent)}
.learn-why:empty{display:none}
.learn-alts{
  font-size:12.5px; color:var(--ink-soft); max-width:100%;
  margin-top:8px; padding:8px 12px; border-radius:var(--radius);
  background:var(--surface-2); border:1px solid var(--line-strong);
  display:flex; align-items:center; gap:6px; flex-wrap:wrap; line-height:1.6;
}
.learn-alts:empty{display:none}
.learn-alts b{font:650 11px var(--font); text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint)}
.learn-alts .pill{margin:0}
.learn-strip{font-size:12.5px; color:var(--ink-faint); min-height:0; margin-top:8px;
  font-variant-numeric:tabular-nums; font-family:var(--mono); line-height:1.9}
.learn-strip button{
  background:none; border:none; color:inherit; font:inherit; cursor:pointer; padding:2px 5px;
  border-radius:var(--radius-sm);
}
.learn-strip button:hover{color:var(--accent); background:var(--accent-soft)}
.learn-strip button:focus-visible{outline:2px solid var(--accent); outline-offset:1px}
.learn-strip button.cur{background:var(--accent); color:var(--accent-ink); font-weight:700}
.learn-strip button.corr{text-decoration:underline; text-decoration-color:var(--accent); text-underline-offset:3px}
.learn-done-banner{
  margin:10px 0 0; padding:12px 14px; border-radius:var(--radius);
  background:color-mix(in srgb, var(--good) 14%, var(--surface));
  border:1px solid color-mix(in srgb, var(--good) 40%, var(--line-strong));
  font:650 14.5px/1.5 var(--font); color:var(--ink);
}
.changelog li{font-size:12.5px; color:var(--ink-soft); margin:4px 0}
.empty-state{padding:36px 22px; text-align:center; border:1px dashed var(--line-strong); border-radius:var(--radius-lg); color:var(--ink-soft)}
.diff-table{display:grid; gap:5px; margin-top:6px}
.diff-row{display:grid; grid-template-columns:1fr auto auto; gap:12px; align-items:baseline; font-size:13.5px}
.diff-row .dlab{color:var(--ink-soft)}
.diff-row .dcur{font-variant-numeric:tabular-nums; font-weight:700}
.diff-up{color:var(--good)} .diff-down{color:var(--bad)} .diff-eq{color:var(--ink-faint)}

/* Progress */
.adh-bar{height:10px; border-radius:2px; background:var(--surface-3); overflow:hidden; display:flex}
.adh-bar i{display:block; height:100%; transition:width .4s var(--ease)}
.adh-meta{display:flex; justify-content:space-between; font-size:12.5px; color:var(--ink-soft); margin-top:5px}
.verdict{
  font:500 15px/1.55 var(--font); padding:12px 14px;
  background:var(--surface-2); border-left:3px solid var(--line-strong);
  border-radius:0 var(--radius) var(--radius) 0; margin:10px 0; color:var(--ink);
}
.signal-row{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:10px;
  padding:13px 14px; border-bottom:1px solid var(--line);
  transition:background .12s;
}
.signal-row:hover{background:var(--surface-2)}
.signal-row:last-child{border-bottom:none}
.signal-row .s-title{font:650 14.5px var(--font)}
.signal-row .s-delta{font:700 13.5px var(--font); font-variant-numeric:tabular-nums}
.story{font-size:14.5px; color:var(--ink-soft); margin:0 0 4px; line-height:1.55}

code, .mono{font-family:var(--mono); font-size:.92em}

/* Tablet / pantallas angostas: tablero arriba, panel+feedback abajo */
@media (max-width:900px){
  main{padding:12px}
  .cols-2,.cols-3{grid-template-columns:1fr}
  .card-grid{grid-template-columns:repeat(auto-fill, minmax(220px, 1fr))}
  .trainer{
    grid-template-columns:1fr;
    gap:10px;
  }
  .learn-body{
    grid-template-columns:1fr;
    gap:24px;
  }
  .trainer-side{position:static}
  .pinfo-card{padding:10px 12px}
  .btnrow{margin-top:8px; gap:6px}
  .next-step{grid-template-columns:1fr}
  .next-step .ns-actions{flex-direction:row; flex-wrap:wrap}
}
@media (max-width:640px){
  main{padding:10px} header{padding:8px 10px 6px}
  .header-nav{padding:0 6px} .header-nav button{padding:9px 10px; font-size:12px}
  .btn{padding:6px 10px; font-size:12px}
  .card-grid{grid-template-columns:1fr}
  .hero-strip{flex-wrap:nowrap; overflow-x:auto; -webkit-overflow-scrolling:touch}
  .hero-strip .chip{white-space:nowrap}
  .plan-delta .pd-grid{grid-template-columns:1fr}
}

/* ── PR1 session chrome (overrides trainer-as-dashboard) ── */
html,body{height:100%;}
body{
  transition:background var(--chrome-ms) var(--ease), color var(--chrome-ms) var(--ease);
}
.num,.san,.move-strip, .evalbar-num, td, .kpi .val{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
.move-strip, .san, #moveStrip, .pack-pz, .why-line, .pf-row{
  font-family:var(--mono);
  font-size:13px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
.prose, .coach-notes, #whyPopover, #fb{
  max-width:var(--prose);
}
.visually-hidden{
  position:absolute !important; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* Header 48px. No Fraunces. No mascot-as-puzzle. */
.app-header{
  height:var(--header-h); min-height:var(--header-h); max-height:var(--header-h);
  padding:0 12px; display:flex; align-items:center; justify-content:space-between; gap:10px;
  border-bottom:1px solid var(--line); background:var(--surface);
  flex:0 0 var(--header-h);
}
body.tab-entrenar header.app-header, body.tab-entrenar .app-header{
  padding:0 12px; height:var(--header-h); max-height:var(--header-h);
}
.app-header .brand{gap:8px}
.app-header .brand-mark{width:28px; height:28px; border-radius:6px}
.app-header .brand-text .name{
  font:650 var(--fs-16)/1.1 var(--font); letter-spacing:-.02em;
  font-variation-settings:normal;
}
.app-header .user-meta{font:600 12px/1.2 var(--font); color:var(--ink-soft)}
.app-header .header-top{display:flex; align-items:center; justify-content:space-between; gap:10px; width:100%; flex-wrap:nowrap}
.header-nav{
  display:flex; gap:0; padding:0; border:0; position:static; background:transparent;
  backdrop-filter:none; overflow:visible; z-index:2;
}
.header-nav button{
  padding:8px 10px; font:600 var(--fs-12)/1 var(--font); border-bottom-width:2px;
}
body.tab-entrenar .hero-strip, body.tab-entrenar header > .hero-strip{display:none !important}

body.session-shell{
  display:flex; flex-direction:column; min-height:100dvh;
}
body.session-shell main{
  flex:1; min-height:0; width:100%; max-width:none;
}
body.tab-entrenar main{
  padding:0; max-width:none; display:flex; flex-direction:column; min-height:0;
}
body.tab-entrenar #offlineBar{margin:0; border-radius:0}
body.tab-entrenar #inicio,
body.tab-entrenar #progreso,
body.tab-entrenar #recursos{display:none}

/* Three-pane desktop ≥900px: pack | board | inspector */
.session.trainer{
  display:grid;
  grid-template-columns:minmax(200px,240px) minmax(0,1fr) minmax(240px,300px);
  grid-template-rows:1fr;
  gap:0;
  align-items:stretch;
  width:100%;
  height:calc(100dvh - var(--header-h));
  min-height:0;
  background:var(--bg);
}
.session-pack{
  min-width:0; overflow:auto; border-right:1px solid var(--line);
  background:color-mix(in srgb, var(--accent) 8%, var(--surface)); padding:10px 8px;
  content-visibility:auto;
  contain-intrinsic-size:auto 800px;
}
.pack-head{display:flex; align-items:center; gap:6px; margin-bottom:8px; flex-wrap:wrap}
.pack-head .lab{font:650 var(--fs-12)/1 var(--font); color:var(--ink-faint); letter-spacing:.04em; text-transform:uppercase}
.pack-list{display:flex; flex-direction:column; gap:2px}
.pack-item, .pack-pz{
  display:flex; align-items:center; gap:8px; width:100%; height:32px; min-height:32px;
  text-align:left; background:transparent; color:var(--ink-soft);
  border:0; border-radius:var(--radius-sm); padding:0 8px; cursor:pointer; font:600 12.5px var(--font);
  white-space:nowrap; overflow:hidden;
}
.pack-item .pack-name, .pack-pz .pack-name{
  flex:1 1 auto; min-width:0; overflow:hidden; text-overflow:ellipsis;
}
.pack-n{
  flex:0 0 auto; font:700 10.5px var(--font); padding:1px 6px; border-radius:999px;
  background:var(--surface-3); color:var(--ink-faint);
}
.pack-item.on .pack-n, .pack-pz.on .pack-n{background:var(--accent); color:var(--accent-ink)}
.pack-item:hover, .pack-pz:hover{background:var(--surface-2); color:var(--ink)}
.pack-item.on, .pack-pz.on{
  background:var(--accent-soft); color:var(--ink);
  box-shadow:inset 3px 0 0 var(--accent);
}
.pack-item, .pack-pz{
  transition:background 160ms var(--ease), color 160ms var(--ease);
}
.pack-item:focus-visible, .pack-pz:focus-visible{outline:2px solid var(--accent); outline-offset:2px}
.pack-puzzles{margin-top:10px; display:flex; flex-direction:column; gap:1px; content-visibility:auto}
.pack-puzzles .pack-pz{font-family:var(--font); font-size:12px}
#trainerMem.mem-chips, .mem-chips{display:flex; flex-wrap:wrap; gap:4px; margin:6px 0 8px}
.mem-chip{
  display:inline-flex; align-items:center; font:600 11px var(--font);
  padding:3px 8px; border-radius:999px; background:var(--surface-2);
  color:var(--ink-soft); border:1px solid var(--line);
}

.session-stage{
  min-width:0; min-height:0; display:flex; flex-direction:column;
  align-items:center; justify-content:center; padding:8px; gap:8px;
}
.session-stage .board-col{
  width:100%; display:flex; justify-content:center; align-items:center;
}
body.tab-entrenar .board-wrap{
  position:relative;
  display:flex; gap:0; align-items:stretch;
  margin:0; touch-action:none; overscroll-behavior:none;
  content-visibility:visible;
  -webkit-user-select:none; user-select:none;
}
body.tab-entrenar .board-wrap.eval-on .evalbar-wrap{
  position:static;
  flex:0 0 28px;
  width:28px;
  height:var(--board-side, 480px);
  min-height:0;
  z-index:1;
}
body.tab-entrenar .board-wrap:focus-visible{
  outline:2px solid var(--accent); outline-offset:3px;
}
body.tab-entrenar #board.cg-wrap{
  width:var(--board-side, 480px);
  height:var(--board-side, 480px);
  min-width:var(--board-side, 480px);
  min-height:var(--board-side, 480px);
  max-width:none;
  aspect-ratio:1 / 1;
  flex:0 0 var(--board-side, 480px);
  content-visibility:visible !important;
  border-radius:0;
}
body.tab-entrenar #board.cg-wrap coords coord{
  color:color-mix(in srgb, var(--accent) 70%, var(--ink-faint));
}
body.attempting .evalbar-wrap{
  visibility:hidden; opacity:0; pointer-events:none;
}
body.attempting #engineResult,
body.attempting .kpi-row,
body.attempting .hero-strip{
  display:none !important;
}

.session-transport{display:none !important}
.session-transport .t-state{
  min-width:4.5em; text-align:center; font:650 12px var(--font);
  font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1;
  color:var(--ink-soft); border:1px solid var(--line); border-radius:var(--radius);
  padding:8px 10px; background:var(--surface);
}
.session-inspector{
  min-width:0; overflow:auto; border-left:1px solid var(--line);
  background:color-mix(in srgb, var(--accent) 6%, var(--surface)); padding:14px 16px;
  display:flex; flex-direction:column; gap:10px;
  box-shadow:-12px 0 32px rgba(0,0,0,.18);
}
.session-inspector #fb{
  margin:0; padding:10px 12px; background:transparent; border:0; box-shadow:none;
  font:600 var(--fs-16)/1.45 var(--font);
}
.session-inspector #fb.tone-bad{
  background:color-mix(in srgb, var(--bad) 28%, var(--surface));
  border:1px solid color-mix(in srgb, var(--bad) 70%, var(--line-strong));
}
.session-inspector #fb.tone-good{
  background:color-mix(in srgb, var(--good) 24%, var(--surface));
  border:1px solid color-mix(in srgb, var(--good) 65%, var(--line-strong));
}
.session-inspector .coach-notes:empty,
.session-inspector #moveStrip:empty{display:none}
.inspector-extra{font-size:13px; color:var(--ink-soft)}
body.attempting .inspector-reveal{opacity:.85}
.pack-toggle{display:none}
#whyPopover.why-fallback{
  position:fixed; top:calc(var(--header-h) + 8px); right:8px; left:auto; bottom:auto; translate:none;
}

/* Porqué: native popover + CSS anchor. Never a fullscreen dialog over the board. */
#whyPopover, #helpPopover{
  inset:unset;
  margin:0;
  max-width:var(--prose);
  width:min(360px, 92vw);
  padding:12px 14px;
  background:var(--surface);
  color:var(--ink);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  font:var(--fs-14)/1.55 var(--font);
}
#whyPopover{
  position-anchor:--why-anchor;
  top:anchor(bottom);
  left:anchor(left);
  translate:0 8px;
}
#lastSan{anchor-name:--why-anchor}
@supports not (anchor-name: --x){
  #whyPopover{
    top:auto; left:auto; right:12px; bottom:auto;
    position:fixed;
    margin-top:56px;
    margin-right:12px;
  }
  body.tab-entrenar #whyPopover{
    right:8px; top:calc(var(--header-h) + 8px); bottom:auto;
  }
}
@media (max-width:899px){
  @supports not (anchor-name: --x){
    body.tab-entrenar #whyPopover{
      top:auto; right:8px; left:8px; width:auto;
      bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px) + 52px);
    }
  }
  #whyPopover.why-fallback{
    top:auto; left:8px; right:8px; width:auto;
    bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px) + 52px);
  }
}
#helpPopover{
  position:fixed;
  top:calc(var(--header-h) + 8px);
  left:50%;
  translate:-50% 0;
}

/* Inspector as native popover sheet on mobile — no backdrop over the board. */
#sessionInspector:popover-open{
  position:fixed;
  inset:unset;
  left:0; right:0;
  bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px));
  width:100%;
  max-height:var(--session-sheet-h, min(32dvh, 280px));
  margin:0;
  overflow:auto;
  border:0;
  border-top:1px solid var(--line);
  border-radius:12px 12px 0 0;
  background:var(--surface);
  color:var(--ink);
  padding:12px 14px 8px;
  display:flex; flex-direction:column; gap:10px;
}
#sessionInspector::backdrop{
  display:none;
  background:none;
}

/* Bottom nav mobile */
.bottom-nav{
  display:none;
  position:fixed; left:0; right:0; bottom:0; z-index:30;
  height:calc(var(--nav-h) + env(safe-area-inset-bottom,0px));
  padding:0 8px env(safe-area-inset-bottom,0px);
  background:var(--surface); border-top:1px solid var(--line);
  align-items:stretch; justify-content:space-around;
}
.bottom-nav button{
  flex:1; background:none; border:0; color:var(--ink-soft);
  font:650 var(--fs-12)/1 var(--font); cursor:pointer;
}
.bottom-nav button.on{color:var(--accent)}
.bottom-nav button:focus-visible{outline:2px solid var(--accent); outline-offset:-4px}

@media (max-width:899px){
  .header-nav{display:none}
  .bottom-nav{display:flex}
  .pack-toggle{display:inline-flex}
  main{padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px) + 24px)}
  body.tab-entrenar main{padding:0 0 calc(var(--nav-h) + env(safe-area-inset-bottom,0px))}
  .session.trainer{
    grid-template-columns:1fr;
    grid-template-rows:1fr auto;
    height:calc(100dvh - var(--header-h) - var(--nav-h) - env(safe-area-inset-bottom,0px));
  }
  .session-pack{display:none}
  .session-pack.open-mobile{
    display:block; position:fixed; z-index:25;
    left:0; right:0; top:var(--header-h);
    bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px));
    border-right:0; border-bottom:1px solid var(--line);
  }
  .session-stage{padding:0; justify-content:flex-start}
  body.tab-entrenar #board.cg-wrap{
    width:var(--board-side, 100vw);
    height:var(--board-side, 100vw);
  }
  .session-inspector{
    position:fixed; z-index:20;
    left:0; right:0;
    bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px));
    max-height:var(--session-sheet-h, min(32dvh, 280px));
    border-left:0; border-top:1px solid var(--line);
    border-radius:12px 12px 0 0;
    padding-bottom:8px;
  }
  .session-transport{display:none !important}
  body.tab-entrenar .board-wrap{margin:0 auto}
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0ms !important; transition-duration:0ms !important}
}


/* ── Dashboard-first: tiles, numbers, motion. Accent wash that reads. ── */
body.tab-inicio{
  --land-pad: clamp(16px, 4vw, 48px);
  --font-display: var(--font);
  --accent:#FF4D3A;
  --accent-hover:#FF6A5A;
  --accent-soft:rgba(255,77,58,.18);
  --accent-ink:#140A08;
}
:root[data-theme="light"] body.tab-inicio,
html[data-theme="light"] body.tab-inicio{
  --accent:#C1121F;
  --accent-hover:#9B0E18;
  --accent-soft:rgba(193,18,31,.14);
  --accent-ink:#FFF8F2;
}
body.tab-entrenar{
  --accent:#D4A574;
  --accent-hover:#E0B88A;
  --accent-soft:rgba(212,165,116,.18);
  --accent-ink:#1A140E;
}
:root[data-theme="light"] body.tab-entrenar,
html[data-theme="light"] body.tab-entrenar{
  --accent:#9A6B3F;
  --accent-hover:#7C5532;
  --accent-soft:rgba(154,107,63,.14);
  --accent-ink:#FFF8F0;
}
body.tab-progreso{
  --accent:#4DB6A8;
  --accent-hover:#6BC9BC;
  --accent-soft:rgba(77,182,168,.18);
  --accent-ink:#0E1614;
}
:root[data-theme="light"] body.tab-progreso,
html[data-theme="light"] body.tab-progreso{
  --accent:#2A8F84;
  --accent-hover:#1F6F67;
  --accent-soft:rgba(42,143,132,.14);
  --accent-ink:#F4FFFC;
}
body.tab-recursos{
  --accent:#8B7CD6;
  --accent-hover:#A396E0;
  --accent-soft:rgba(139,124,214,.18);
  --accent-ink:#121016;
}
:root[data-theme="light"] body.tab-recursos,
html[data-theme="light"] body.tab-recursos{
  --accent:#5E52B3;
  --accent-hover:#4A4094;
  --accent-soft:rgba(94,82,179,.14);
  --accent-ink:#F7F5FF;
}
body.tab-inicio .pack-toggle{display:none !important}
body.tab-inicio .hero-strip{display:none !important}
body.tab-progreso .hero-strip,
body.tab-recursos .hero-strip{display:none !important}
body.tab-inicio .offline-bar{margin:0 var(--land-pad) 12px}
html:has(body.tab-inicio),
body.tab-inicio{
  height:auto; min-height:100%; overflow:auto;
}
body.tab-inicio.session-shell{min-height:100dvh}
body.tab-inicio main{
  flex:0 0 auto; min-height:auto; overflow:visible;
  padding:0 0 12vh; max-width:none; width:100%;
  background-image:
    radial-gradient(ellipse 480px 340px at 8% -8%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 72%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 20%, transparent), transparent 480px);
  background-repeat:no-repeat;
}
body.tab-inicio header.app-header{
  position:sticky; top:0; z-index:6;
  background:color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter:blur(14px) saturate(1.1);
  -webkit-backdrop-filter:blur(14px) saturate(1.1);
}

/* Atmosphere — Progreso / Aprender. Never Entrenar board. */
body.tab-progreso main,
body.tab-progreso #progreso{
  max-width:1040px; margin-inline:auto;
}
body.tab-progreso main{padding:24px 20px var(--sp-section)}
body.tab-recursos main,
body.tab-recursos #recursos{
  max-width:1040px; margin-inline:auto;
}
body.tab-recursos main{padding:24px 20px var(--sp-section)}
body.tab-progreso main,
body.tab-recursos main{
  background-image:
    radial-gradient(ellipse 480px 340px at 10% -6%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 72%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent 480px);
  background-repeat:no-repeat;
}
:root[data-theme="light"] body.tab-inicio main,
html[data-theme="light"] body.tab-inicio main,
:root[data-theme="light"] body.tab-progreso main,
html[data-theme="light"] body.tab-progreso main,
:root[data-theme="light"] body.tab-recursos main,
html[data-theme="light"] body.tab-recursos main{
  background-image:
    radial-gradient(ellipse 480px 340px at 10% -6%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 72%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 14%, transparent), transparent 480px);
}

.land{color:var(--ink); position:relative; isolation:isolate}
.land > *{position:relative; z-index:1}

.land-hero{
  min-height:0;
  padding:28px var(--land-pad) 24px;
  display:grid; grid-template-columns:auto 1fr auto;
  gap:clamp(16px, 3vw, 40px); align-items:end;
  position:relative; overflow:hidden;
}
.land-hero-piece{
  position:absolute; right:-4%; bottom:-40%; width:min(28vw, 220px); height:auto;
  color:var(--accent); opacity:.16; pointer-events:none; z-index:0;
}
.land-hero-copy, .land-hero-aside{position:relative; z-index:1}
.land-kicker{
  margin:0 0 8px; font:650 11px/1 var(--font); letter-spacing:.14em; text-transform:uppercase; color:var(--accent);
}
.land-title{
  margin:0 0 14px; font:650 clamp(22px, 3.2vw, 32px)/1.1 var(--font);
  letter-spacing:-.03em; max-width:22ch;
}
.land-lede, .land-lead, .land-aside-note{display:none}
.land-actions{display:flex; flex-wrap:wrap; gap:10px; align-items:center}
.land .btn{border-radius:8px; padding:10px 16px; font-size:14px}
.land .btn.primary{padding:12px 20px; font-size:14.5px; letter-spacing:-.01em}
.land-hero-aside{
  border-left:none; padding:0;
  display:flex; flex-direction:column; align-items:flex-end; text-align:right;
}
.land-rating-lab{display:block; font:650 11px/1 var(--font); letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint)}
.land-rating-num{
  display:block; font:650 clamp(40px, 6vw, 56px)/.9 var(--font); letter-spacing:-.04em;
  font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1; margin:6px 0 12px;
}
.land-mods{display:flex; flex-direction:row; flex-wrap:wrap; gap:8px 16px; margin:0; padding:0; list-style:none; justify-content:flex-end}
.land-mods li{display:flex; gap:8px; align-items:baseline; font-size:13px; color:var(--ink-soft); border-bottom:none; padding:0}
.land-mods b{color:var(--ink); font-variant-numeric:tabular-nums; font-size:18px; letter-spacing:-.02em}

.land > .land-toc,
.land-toc{
  position:sticky; top:var(--header-h); z-index:5;
  display:flex; gap:4px; overflow-x:auto; scrollbar-width:none;
  min-height:40px; align-items:center;
  padding:6px var(--land-pad);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.land-toc::-webkit-scrollbar{display:none}
.land-toc button{
  flex:0 0 auto; padding:8px 12px; margin:0;
  font:650 12px/1 var(--font); letter-spacing:.04em; text-transform:uppercase;
  color:var(--ink-faint); background:transparent; border:1px solid transparent;
  border-radius:999px; cursor:pointer;
  transition:color 160ms var(--ease), background 160ms var(--ease), border-color 160ms var(--ease);
}
.land-toc button:hover{color:var(--ink); background:var(--surface-2); border-color:var(--line)}
.land-toc button span{color:var(--accent); margin-right:6px}

.land-chapter{padding:var(--sp-section) var(--land-pad) 0; scroll-margin-top:calc(var(--header-h) + 48px)}
.land-chapter-head{max-width:none; margin-bottom:16px; display:flex; align-items:baseline; gap:12px; flex-wrap:wrap}
.land-idx{
  margin:0; font:650 11px/1 var(--mono); letter-spacing:.14em; color:var(--accent);
  display:inline-flex; align-items:center; gap:6px;
}
.land-idx::before{display:none}
.land-h{
  margin:0; font:650 15px/1.2 var(--font);
  letter-spacing:0; text-transform:uppercase;
}
.land h4, .land-subh{
  font:650 11px/1 var(--font); letter-spacing:.12em; text-transform:uppercase; color:var(--ink-faint);
  margin:20px 0 12px;
}

.land-grid, .land-stat-grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
  gap:12px; align-items:stretch;
}
.land-stat-grid{gap:12px}
.land-card-wide{grid-column:1 / -1}

.land-card, button.land-card{
  position:relative; min-width:0;
  display:flex; flex-direction:column; align-items:stretch;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:14px 16px;
  color:inherit; font:inherit; text-align:left;
  cursor:pointer;
  box-shadow:none;
  transition:border-color 160ms var(--ease), background 160ms var(--ease), box-shadow 160ms var(--ease), transform 120ms var(--ease);
}
article.land-card{cursor:default}
button.land-card{width:100%}
.land-card:hover, button.land-card:hover{
  border-color:color-mix(in srgb, var(--accent) 42%, var(--line));
  background:color-mix(in srgb, var(--accent-soft) 28%, var(--surface));
  box-shadow:var(--tile-shadow);
}
.land-card:active, button.land-card:active{transform:translateY(1px)}
.land-card.is-open, .land-card-more, .land-card-morehint, .land-card::after{display:none !important}
.land-card-face{
  display:contents;
}
.land-card-face:focus-visible, button.land-card:focus-visible{
  outline:2px solid var(--accent); outline-offset:2px; border-radius:8px;
}
.brief{
  max-width:min(920px, 100%); margin:0 auto;
  padding:clamp(20px, 5vw, 56px) var(--land-pad, 24px) 96px;
  display:flex; flex-direction:column; gap:36px;
}
.brief-hero{display:flex; flex-direction:column; gap:16px}
.brief-chips{
  list-style:none; margin:0; padding:0;
  display:flex; flex-wrap:wrap; gap:8px;
}
.brief-chips li{
  display:flex; align-items:baseline; gap:8px;
  margin:0; padding:8px 12px;
  background:color-mix(in srgb, var(--surface) 82%, transparent);
  border:1px solid var(--line); border-radius:999px;
  font:650 12px/1 var(--font); letter-spacing:.04em; text-transform:uppercase;
  color:var(--ink-faint); font-variant-numeric:tabular-nums;
}
.brief-chips b{color:var(--ink); font:650 14px/1 var(--font); letter-spacing:0; text-transform:none}
.brief-thesis{
  margin:0; max-width:18em;
  font:650 clamp(26px, 4.4vw, 40px)/1.12 var(--font);
  letter-spacing:-.035em; color:var(--ink);
}
.brief-sec{display:flex; flex-direction:column; gap:12px}
.brief-sec h2{
  margin:0;
  font:650 11px/1.2 var(--font); letter-spacing:.1em; text-transform:uppercase;
  color:var(--ink-faint);
}
.brief-sec-gain h2{color:var(--good)}
.brief-sec-must h2{color:color-mix(in srgb, var(--bad) 82%, var(--ink))}
.brief-sec-lead{
  margin:0; max-width:40em;
  font:400 14.5px/1.45 var(--font); color:var(--ink-soft);
}
.brief-rail-wrap{
  position:relative;
  margin-inline:calc(-1 * var(--land-pad, 24px));
  padding-inline:var(--land-pad, 24px);
}
.brief-rail-wrap::before, .brief-rail-wrap::after{
  content:""; pointer-events:none; position:absolute; top:0; bottom:12px; width:36px; z-index:1;
}
.brief-rail-wrap::before{
  left:0; background:linear-gradient(90deg, var(--bg) 10%, transparent);
}
.brief-rail-wrap::after{
  right:0; background:linear-gradient(270deg, var(--bg) 10%, transparent);
}
.brief-rail{
  display:flex; gap:12px; align-items:stretch;
  overflow-x:auto; overflow-y:hidden;
  scroll-snap-type:x mandatory;
  scroll-padding-inline:var(--land-pad, 24px);
  padding:10px 2px 18px;
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.brief-card{
  flex:0 0 min(300px, 78vw);
  scroll-snap-align:start;
  display:flex; flex-direction:column; gap:8px; align-items:flex-start;
  margin:0; padding:16px 18px;
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--radius-lg);
  min-width:0; min-height:168px;
  color:inherit; font:inherit; text-align:left; cursor:pointer;
  transition:border-color 180ms var(--ease), background 180ms var(--ease),
    transform 220ms var(--ease), box-shadow 220ms var(--ease), filter 220ms var(--ease);
}
.brief-card:hover, .brief-card:focus-visible{
  transform:translateY(-5px) scale(1.035);
  z-index:2;
}
.brief-card:active{transform:translateY(0) scale(.97)}
.brief-kicker{
  margin:0; font:650 11px/1 var(--font); letter-spacing:.12em; text-transform:uppercase;
  color:var(--ink-faint);
}
.brief-card h3{
  margin:0; font:650 17px/1.28 var(--font); letter-spacing:-.02em; color:var(--ink);
}
.brief-excerpt{
  margin:0; font:400 14px/1.45 var(--font); color:var(--ink-soft);
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.brief-more{
  margin-top:auto; padding-top:8px;
  font:650 11px/1 var(--font); letter-spacing:.1em; text-transform:uppercase;
}
.brief-body, .brief-open{
  margin:0; font:400 15.5px/1.5 var(--font); color:var(--ink);
}
.brief-how{margin:0; font:400 13.5px/1.45 var(--font); color:var(--ink-soft)}
.brief-card .btn{margin-top:6px; align-self:flex-start}
.brief-card-gain{
  border-color:color-mix(in srgb, var(--good) 48%, var(--line));
  background:color-mix(in srgb, var(--good) 11%, var(--surface));
}
.brief-card-gain .brief-kicker, .brief-card-gain .brief-more{color:var(--good)}
.brief-card-gain:hover, .brief-card-gain:focus-visible{
  border-color:color-mix(in srgb, var(--good) 70%, var(--line));
  box-shadow:0 0 0 1px color-mix(in srgb, var(--good) 45%, transparent),
    0 16px 40px color-mix(in srgb, var(--good) 22%, transparent);
}
.brief-card-must{
  border-color:color-mix(in srgb, var(--bad) 42%, var(--line));
  background:color-mix(in srgb, var(--bad) 8%, var(--surface));
}
.brief-card-must .brief-kicker, .brief-card-must .brief-more{color:var(--bad)}
.brief-card-must:hover, .brief-card-must:focus-visible{
  border-color:color-mix(in srgb, var(--bad) 65%, var(--line));
  box-shadow:0 0 0 1px color-mix(in srgb, var(--bad) 40%, transparent),
    0 16px 40px color-mix(in srgb, var(--bad) 18%, transparent);
}
.brief-must, .brief-strong{display:contents}
.brief-must b, .brief-strong b, .brief-open b, .brief-body b{font-weight:650}
.brief-cta{margin-top:4px}
.brief-cta .btn{min-height:48px; padding:0 22px}
@media (prefers-reduced-motion: reduce){
  .brief-card:hover, .brief-card:focus-visible, .brief-card:active{transform:none; box-shadow:none}
}

.land-card-kicker{display:flex; flex-wrap:wrap; gap:6px; margin:0 0 8px}
.land-card-top{display:flex; align-items:flex-start; justify-content:space-between; gap:10px}
.land-card-title{
  margin:0; font:650 15px/1.25 var(--font); letter-spacing:-.01em; color:var(--ink);
}
.land-card-sub{display:none}
.land-metric{
  margin:12px 0 0; display:flex; align-items:baseline; gap:8px;
  font:650 clamp(28px, 3.4vw, 40px)/1 var(--font);
  letter-spacing:-.035em; font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1;
  color:var(--ink);
}
.land-metric-unit{
  font:650 12px/1 var(--font); letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint);
}
.land-stat-chip{
  flex:0 0 auto; display:inline-flex; align-items:center;
  font:650 13px/1 var(--font); font-variant-numeric:tabular-nums;
  padding:5px 8px; border-radius:999px;
  background:var(--surface-2); border:1px solid var(--line); color:var(--ink);
}
.land-facts{
  display:flex; flex-wrap:wrap; gap:12px 20px; margin:10px 0 0; padding:0;
}
.land-facts > div{min-width:5.5em}
.land-facts dt{
  margin:0 0 4px; font:650 10.5px/1 var(--font); letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
}
.land-facts dd{margin:0; font:650 18px/1.15 var(--font); font-variant-numeric:tabular-nums}
.land-facts dd.is-good{color:var(--good)}
.land-facts dd.is-bad{color:var(--bad)}
.land-dev{margin:12px 0 0; font-size:13.5px; color:var(--ink-soft); line-height:1.45}
.land-dev-lab{
  display:block; margin:0 0 4px; font:650 10.5px/1 var(--font);
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
}
.land-verdict{margin:0 0 10px; font-size:14px; color:var(--ink-soft); line-height:1.5}
.land-san-row{display:flex; flex-wrap:wrap; gap:6px; margin-top:12px}
.land-san{
  font:600 12px/1.2 var(--mono); padding:4px 7px; border-radius:4px;
  background:var(--surface-2); border:1px solid var(--line); color:var(--ink);
}
.land-san.is-fix{
  background:var(--accent-soft);
  border-color:color-mix(in srgb, var(--accent) 45%, var(--line));
  color:var(--accent);
}
.land-san-ply{color:var(--ink-faint); font-weight:500; margin-right:2px}
.land-san-note{font-size:12.5px; margin:8px 0 0}
.land-card .btnrow{margin-top:12px; display:flex; flex-wrap:wrap; gap:8px}
.land-open-table{width:100%; display:table; font-size:14px}
.land-open-table th, .land-open-table td{padding:8px 10px}

.land-climax{
  margin:64px var(--land-pad) 0;
  padding:32px 0 0; border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; gap:16px; align-items:center; justify-content:space-between;
}
.land-climax h2{margin:0; font:650 20px/1.15 var(--font); letter-spacing:-.02em; max-width:22ch}

.land-reveal{opacity:0; transform:translateY(14px)}
.land-reveal.in{
  opacity:1; transform:none;
  transition:opacity 600ms var(--ease), transform 600ms var(--ease);
  transition-delay:calc(var(--i, 0) * 55ms);
}
@media (prefers-reduced-motion: reduce){
  .land-reveal{opacity:1; transform:none}
  .land-card, .land-card:hover{transform:none}
  #learnContent.learn-pane{animation:none}
  .learn-lesson:hover{transform:none}
  dialog.modal, dialog.modal[open], dialog.modal::backdrop, dialog.modal[open]::backdrop{
    opacity:1; transform:none; transition:none;
  }
  .details-reveal, details.coach-more::details-content, details.learn-biblio::details-content, details.learn-expl-more::details-content{
    transition:none;
  }
}
@media (max-width:900px){
  .land-hero, .land-climax, .land-grid, .land-stat-grid{grid-template-columns:1fr}
  .land-hero{min-height:auto; padding-top:20px; gap:16px}
  .land-hero-aside{align-items:flex-start; text-align:left}
  .land-mods{justify-content:flex-start}
  .land-hero-piece{width:min(42vw, 180px); right:-8%; bottom:-20%}
}
::view-transition-old(root), ::view-transition-new(root){animation-duration:.45s; animation-timing-function:var(--ease)}

body.tab-progreso .sec-block,
body.tab-recursos .sec-block{margin-bottom:var(--sp-section)}
body.tab-progreso .sec-block + .sec-block,
body.tab-recursos .sec-block + .sec-block{padding-top:48px}
body.tab-progreso .grid{gap:12px}
body.tab-progreso .pf-row{padding:8px 0}
body.tab-recursos .learn-lesson-grid{gap:12px}
body.tab-recursos .seg-control{margin-bottom:var(--sp-xl)}
#progresoContent .land-card::after{display:none}
#progresoContent .coach-stack{display:grid; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr)); gap:12px}
#progresoContent .coach-evidence,
#progresoContent .land-metric{
  margin:12px 0 0; font:650 clamp(28px, 3vw, 36px)/1 var(--font);
  letter-spacing:-.035em; font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1; color:var(--ink);
}
#progresoContent .coach-lead{display:none}
#progresoContent .coach-note{margin:0 0 14px; font-size:13px; color:var(--warn); line-height:1.45}
#progresoContent .coach-foot{margin:16px 0 0; font-size:12.5px; color:var(--ink-faint); line-height:1.45}
#progresoContent .week-objective{
  margin:0 0 var(--sp-lg); font:650 18px/1.25 var(--font); letter-spacing:-.02em; color:var(--ink);
}
.coach-rating-ctx{margin:8px 0 0; max-width:420px}
.coach-rating-ctx figcaption{font-size:12px; color:var(--ink-faint); margin-top:6px}
.details-reveal{display:grid; grid-template-rows:0fr; transition:grid-template-rows .4s var(--ease)}
.details-reveal-inner{min-height:0; overflow:hidden}
details.coach-more, details.learn-biblio, details.learn-expl-more{interpolate-size:allow-keywords}
details.coach-more[open] > .details-reveal,
details.learn-biblio[open] > .details-reveal,
details.learn-expl-more[open] > .details-reveal{grid-template-rows:1fr}
@starting-style{
  details.coach-more[open] > .details-reveal,
  details.learn-biblio[open] > .details-reveal,
  details.learn-expl-more[open] > .details-reveal{grid-template-rows:0fr}
}
@supports selector(::details-content){
  details.coach-more::details-content,
  details.learn-biblio::details-content,
  details.learn-expl-more::details-content{
    display:grid; grid-template-rows:0fr;
    transition:grid-template-rows .4s var(--ease), content-visibility .4s allow-discrete;
  }
  details.coach-more[open]::details-content,
  details.learn-biblio[open]::details-content,
  details.learn-expl-more[open]::details-content{grid-template-rows:1fr}
}
details.coach-more{margin-top:10px}
details.coach-more > summary{
  cursor:pointer; font:650 12.5px var(--font); color:var(--ink-soft); padding:6px 0; list-style:none;
}
details.coach-more > summary::-webkit-details-marker{display:none}

.learn-diag{
  display:grid; gap:12px; grid-template-columns:repeat(auto-fill, minmax(180px, 1fr));
  margin:0 0 24px; padding:0; border:none; background:transparent;
}
.learn-diag .ld-item{
  min-width:0; padding:14px 16px; border:1px solid var(--line); border-radius:var(--radius-lg);
  background:var(--surface);
  transition:border-color 160ms var(--ease), box-shadow 160ms var(--ease), transform 120ms var(--ease);
}
.learn-diag .ld-item:hover{border-color:color-mix(in srgb, var(--accent) 42%, var(--line)); box-shadow:var(--tile-shadow)}
.learn-diag .ld-k{font:650 11px var(--font); text-transform:uppercase; letter-spacing:.08em; color:var(--accent); margin-bottom:6px}
.learn-diag .ld-v{font:650 15px/1.25 var(--font); color:var(--ink)}
.learn-diag .ld-v b{font-size:22px; letter-spacing:-.03em; font-variant-numeric:tabular-nums}
.learn-lesson-grid, .learn-topic-grid{
  display:grid; gap:12px; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr)); align-items:stretch
}
.card.learn-lesson, button.learn-lesson{
  padding:14px 16px; display:flex; flex-direction:column; gap:8px; cursor:pointer;
}
.learn-lesson .ll-title{font:650 15px/1.25 var(--font); letter-spacing:-.01em}
.learn-lesson .ll-sub{font:650 clamp(22px, 2.6vw, 28px)/1 var(--font); letter-spacing:-.03em; color:var(--ink); font-variant-numeric:tabular-nums}
.card.card-sm{min-height:0; padding:14px 16px}
.card.card-sm .card-excerpt{display:none}
.card.card-sm .card-foot{margin-top:auto; font-size:12px; font-weight:650; color:var(--ink-faint); letter-spacing:.06em; text-transform:uppercase}

.hbar-row{grid-template-columns:110px 1fr 40px}
.plan-state-card{
  padding:14px 16px;
  display:grid; gap:8px;
}

/* Session UX: dests calm gray, wrong flash, puzzles stats, profile tiles */
.hero-strip{display:none !important}
.profile-kpis{margin:0 0 16px}
.profile-split{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 14px}
.profile-split .land-idx{margin:0 0 8px}
.sess-meter{
  width:100%; border-collapse:collapse; margin:8px 0 12px;
  border:1px solid var(--line); border-radius:8px; overflow:hidden;
  background:var(--surface);
}
.sess-meter th, .sess-meter td{
  padding:10px 12px; text-align:left; vertical-align:baseline;
}
.sess-meter th{
  font:650 11px/1.2 var(--font); letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint);
}
.sess-meter .num{
  text-align:right; font:650 20px/1 var(--font); letter-spacing:-.03em; font-variant-numeric:tabular-nums;
}
.sess-meter tr + tr th, .sess-meter tr + tr td{border-top:1px solid var(--line)}
.sess-meter .split td{font:650 13px/1.3 var(--font); font-variant-numeric:tabular-nums}
.sess-meter .ok{color:var(--good)}
.sess-meter .bad{color:var(--bad)}
@keyframes whyToast{
  from{opacity:0; translate:0 8px}
  to{opacity:1; translate:0 0}
}
@keyframes pieceShake{
  0%,100%{translate:0 0}
  20%{translate:-4px 0}
  40%{translate:4px 0}
  60%{translate:-3px 0}
  80%{translate:2px 0}
}
#fb.tone-bad{background:color-mix(in srgb, var(--bad) 28%, var(--surface)); border-color:color-mix(in srgb, var(--bad) 70%, var(--line-strong)); color:var(--ink)}
#fb.tone-bad .bad{color:var(--bad); font-weight:800}
#fb.tone-good{background:color-mix(in srgb, var(--good) 24%, var(--surface)); border-color:color-mix(in srgb, var(--good) 65%, var(--line-strong)); color:var(--ink)}
#fb.tone-good .ok{color:var(--good); font-weight:800}
.session-inspector .coach-notes{
  overflow:auto; max-height:min(42vh, 320px); min-height:0; flex:1 1 auto;
}
#whyPopover{
  z-index:40;
  max-height:min(70vh, 420px);
  overflow:auto;
}
@supports not (anchor-name: --x){
  body.tab-entrenar #whyPopover{
    left:12px; right:auto; top:calc(var(--header-h) + 12px);
    width:min(320px, 42vw);
  }
}
#board.cg-wrap cg-board square.move-dest{
  background: radial-gradient(circle at center, rgba(232,196,120,.95) 0 19%, rgba(232,196,120,.55) 20%, transparent 22%) !important;
}
#board.cg-wrap cg-board square.oc.move-dest{
  background: radial-gradient(transparent 0 62%, rgba(232,196,120,.7) 64% 78%, transparent 80%) !important;
}
#board.cg-wrap cg-board square.move-dest:hover{
  background: rgba(232,196,120,.38) !important;
}
#board.cg-wrap cg-board square.selected{
  background-color: rgba(212,165,116,.42) !important;
}
#board.cg-wrap cg-board square.last-move{
  background-color: rgba(212,165,116,.34) !important;
}
@media (max-width:899px){
  .session-inspector .coach-notes{ max-height:min(18dvh, 140px); }
}
#filterPopover, #activeChips, #fclear, #filterBtn{display:none !important}

.why-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 8px}
.why-head .lab{margin:0}
.why-close{
  flex:0 0 auto; width:32px; height:32px; border:1px solid var(--line); border-radius:4px;
  background:var(--surface-2); color:var(--ink); font:650 18px/1 var(--font); cursor:pointer;
}
.why-close:hover{border-color:var(--accent); color:var(--accent)}
#whyPopover{
  position:fixed !important;
  inset:auto 12px 12px auto !important;
  top:auto !important;
  left:auto !important;
  right:12px !important;
  bottom:12px !important;
  width:min(360px, calc(100vw - 24px)) !important;
  max-height:min(40vh, 280px) !important;
  overflow:auto !important;
  translate:none !important;
  z-index:50;
  animation: whyToast .28s cubic-bezier(.2,.7,.2,1);
}
#whyPopover.why-tone-bad{border-color:color-mix(in srgb, var(--bad) 55%, var(--line-strong))}
#whyPopover.why-tone-good{border-color:color-mix(in srgb, var(--good) 55%, var(--line-strong))}
@media (max-width:899px){
  #whyPopover{
    left:12px !important;
    right:12px !important;
    width:auto !important;
    bottom:calc(var(--nav-h) + env(safe-area-inset-bottom,0px) + 8px) !important;
    max-height:min(28vh, 200px) !important;
  }
}

.session-dock{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.session-pager{
  display:flex;align-items:center;justify-content:center;gap:12px;
  border:0;background:transparent;height:auto;padding:0;
}
.pager-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border:1px solid var(--line);border-radius:9999px;padding:0;
  background:var(--surface-2);color:var(--ink);
  font:650 24px/1 var(--font);cursor:pointer;
}
.pager-btn:hover{background:var(--surface-3);border-color:var(--line-strong)}
.pager-go{background:var(--accent);color:var(--accent-ink);border-color:transparent}
.pager-go:hover{background:var(--accent-hover);color:var(--accent-ink)}
.session-coach{
  display:grid;grid-template-columns:1fr 1fr;gap:8px;
}
.coach-cmd{
  margin:0;width:100%;min-height:44px;padding:10px 12px;
  border:1px solid var(--line);border-radius:8px;
  background:transparent;color:var(--ink);
  font:650 14px/1.2 var(--font);cursor:pointer;text-align:center;
}
.coach-cmd:hover{background:var(--surface-2);border-color:var(--line-strong);color:var(--ink)}
body.attempting .session-dock{opacity:1}
#board.cg-wrap piece.wrong-shake{
  animation:pieceShake .42s cubic-bezier(.36,.07,.19,.97);
}
#board.cg-wrap cg-board square.wrong-glow{
  background:radial-gradient(circle at center,
    color-mix(in srgb, var(--bad) 62%, transparent) 0 38%,
    color-mix(in srgb, var(--bad) 22%, transparent) 52%,
    transparent 74%);
  pointer-events:none;
  animation:pieceShake .42s cubic-bezier(.36,.07,.19,.97);
}

body.tab-entrenar #whyPopover,
body.tab-entrenar .coach-notes{ color:var(--ink); }
body.tab-entrenar #whyPopover .why-head,
body.tab-entrenar #whyPopover .why-head span,
body.tab-entrenar #whyPopover .lab,
body.tab-entrenar #whyPopover b,
body.tab-entrenar .coach-notes .lab,
body.tab-entrenar .coach-notes b{ color:var(--accent); }
body.tab-entrenar #whyPopover .why-close{
  border-color:color-mix(in srgb, var(--accent) 45%, var(--line));
  color:var(--accent);
}