/* ============================================================
   StudyLab24 Typing — Design System
   Concept: instrument panel / cockpit dashboard. The typing
   passage is the runway; the stat cluster is the gauge bank.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root{
  --bg:#F6F7FB;
  --surface:#FFFFFF;
  --surface-2:#EEF0F8;
  --surface-3:#E4E7F3;
  --border:#DBDFEE;
  --text:#14161F;
  --text-2:#565C74;
  --text-3:#8890A8;
  --accent:#3557E8;
  --accent-ink:#FFFFFF;
  --accent-soft:#E7ECFF;
  --amber:#B4740E;
  --amber-soft:#FFF1D6;
  --success:#158A4E;
  --success-soft:#DEF7E8;
  --danger:#D0362E;
  --danger-soft:#FCE3E1;
  --shadow:0 1px 2px rgba(20,22,31,.04), 0 8px 24px -12px rgba(20,22,31,.12);
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:20px;
  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'Courier New',monospace;
}

[data-theme="dark"]{
  --bg:#0A0C13;
  --surface:#12141F;
  --surface-2:#181B29;
  --surface-3:#212437;
  --border:#262A3E;
  --text:#EAEBF4;
  --text-2:#A2A7C0;
  --text-3:#6C7290;
  --accent:#7C93FF;
  --accent-ink:#0A0C13;
  --accent-soft:#1C223F;
  --amber:#F2B93B;
  --amber-soft:#2E2510;
  --success:#3DD68C;
  --success-soft:#122A20;
  --danger:#FF6B63;
  --danger-soft:#2D1615;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 12px 28px -14px rgba(0,0,0,.55);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
/* Overflow containment: grid/flex children default to min-width:auto, which
   lets long content push the page wider than the viewport on small screens. */
html,body{overflow-x:clip;max-width:100%}
main.layout > *,
.hero-grid > *,
.footer-grid > *,
.card-grid > *,
.res-stats > *,
.gauge-grid > *{min-width:0}
img,svg,video,canvas,table{max-width:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
  transition:background-color .25s ease,color .25s ease;
}
img,svg,video{max-width:100%;display:block}
a{color:var(--accent)}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.2;margin:0 0 .5em}
p{margin:0 0 1em}
button,input,textarea,select{font-family:inherit}
button{cursor:pointer}

/* Visible keyboard focus everywhere — accessibility floor */
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip-link{
  position:absolute;left:8px;top:-48px;background:var(--accent);color:var(--accent-ink);
  padding:10px 16px;border-radius:var(--radius-s);z-index:999;font-weight:600;font-size:.85rem;
  transition:top .15s ease;
}
.skip-link:focus{top:8px}
.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;
}

/* ---------- Top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;
  padding:10px 20px;background:color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex-shrink:0}
.brand img{height:30px;width:auto}
.brand-word{font-family:var(--font-display);font-weight:700;font-size:1rem;letter-spacing:-.01em}
.brand-word small{display:block;font-family:var(--font-body);font-weight:500;font-size:.62rem;color:var(--text-3);letter-spacing:.03em}

.topnav{display:flex;align-items:center;gap:4px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.topnav::-webkit-scrollbar{display:none}
.topnav button{
  display:flex;align-items:center;gap:6px;white-space:nowrap;background:transparent;border:1px solid transparent;
  color:var(--text-2);font-size:.82rem;font-weight:600;padding:8px 12px;border-radius:999px;
  transition:background-color .15s,color .15s,border-color .15s;
}
.topnav button:hover{background:var(--surface-2);color:var(--text)}
.topnav button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-soft)}

.topbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.icon-btn{
  display:flex;align-items:center;gap:6px;background:var(--surface-2);border:1px solid var(--border);
  color:var(--text);padding:8px 12px;border-radius:999px;font-size:.78rem;font-weight:600;
}
.icon-btn:hover{background:var(--surface-3)}
.theme-switch{
  position:relative;width:52px;height:30px;border-radius:999px;background:var(--surface-3);
  border:1px solid var(--border);flex-shrink:0;padding:0;
}
.theme-switch .knob{
  position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:var(--accent);
  transition:transform .2s ease;display:flex;align-items:center;justify-content:center;font-size:12px;
}
[data-theme="dark"] .theme-switch .knob{transform:translateX(22px)}

.menu-toggle{display:none;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-s);width:40px;height:40px;color:var(--text)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:56px 20px 40px;max-width:1160px;margin:0 auto;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;color:var(--accent);
  background:var(--accent-soft);padding:6px 12px;border-radius:999px;margin-bottom:16px;
}
.hero h1{font-size:clamp(2rem,4.5vw,3.1rem);letter-spacing:-.02em;color:var(--text)}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:1.05rem;color:var(--text-2);max-width:52ch;margin-bottom:22px}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;
  border-radius:999px;font-weight:700;font-size:.92rem;border:1px solid transparent;text-decoration:none;
  transition:transform .12s ease,box-shadow .12s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{box-shadow:0 8px 20px -8px color-mix(in srgb, var(--accent) 60%, transparent)}
.btn-ghost{background:var(--surface);border-color:var(--border);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2)}
.hero-trust{display:flex;gap:22px;flex-wrap:wrap}
.hero-trust div{font-family:var(--font-mono);font-weight:700;font-size:1.15rem;color:var(--text)}
.hero-trust span{display:block;font-family:var(--font-body);font-weight:500;font-size:.72rem;color:var(--text-3)}

/* Cockpit dial illustration */
.cockpit{position:relative;aspect-ratio:1/1;max-width:340px;margin-left:auto;display:grid;place-items:center}
.dial{
  position:relative;width:100%;height:100%;border-radius:50%;
  background:conic-gradient(from -120deg, var(--accent) 0deg 216deg, var(--surface-3) 216deg 360deg);
  display:grid;place-items:center;
}
.dial::before{content:"";position:absolute;inset:14%;background:var(--surface);border-radius:50%;box-shadow:inset 0 0 0 1px var(--border)}
.dial-center{position:relative;text-align:center}
.dial-center b{display:block;font-family:var(--font-mono);font-size:2.6rem;font-weight:700;color:var(--text)}
.dial-center span{font-size:.75rem;color:var(--text-3);font-weight:600;letter-spacing:.04em}

/* ---------- Layout ---------- */
main.layout{max-width:1160px;margin:0 auto;padding:0 20px 60px;display:grid;grid-template-columns:280px 1fr;gap:20px;align-items:start}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);box-shadow:var(--shadow)}
.sidebar{position:sticky;top:76px;display:flex;flex-direction:column;gap:14px}
.panel-pad{padding:16px}
.panel-title{font-family:var(--font-display);font-size:.82rem;font-weight:700;color:var(--text-2);text-transform:none;letter-spacing:.01em;margin-bottom:10px;display:flex;align-items:center;gap:6px}

/* Gauge stat grid (sidebar) */
.gauge-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.gauge{background:var(--surface-2);border-radius:var(--radius-m);padding:12px;text-align:left}
.gauge b{display:block;font-family:var(--font-mono);font-size:1.4rem;font-weight:700}
.gauge span{font-size:.68rem;color:var(--text-3);font-weight:600;letter-spacing:.02em}
.gauge.blue b{color:var(--accent)}
.gauge.green b{color:var(--success)}
.gauge.red b{color:var(--danger)}
.gauge.amber b{color:var(--amber)}

.streak-row{display:flex;align-items:center;gap:12px;min-width:0;background:var(--surface-2);border-radius:var(--radius-m);padding:12px}
.streak-row .flame{font-size:1.6rem}
.streak-row b{display:block;font-family:var(--font-mono);font-size:1.15rem}
.streak-row span{font-size:.68rem;color:var(--text-3)}

/* Mode & lesson tabs */
.seg{display:flex;background:var(--surface-2);border-radius:999px;padding:3px;gap:2px}
.seg button{flex:1;border:0;background:transparent;padding:8px 6px;border-radius:999px;font-size:.75rem;font-weight:700;color:var(--text-2)}
.seg button[aria-selected="true"]{background:var(--surface);color:var(--accent);box-shadow:var(--shadow)}

.lesson-item{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:transparent;border:1px solid transparent;
  border-radius:var(--radius-s);padding:9px 10px;font-size:.8rem;color:var(--text-2);
}
.lesson-item:hover{background:var(--surface-2)}
.lesson-item[aria-current="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-soft);font-weight:700}
.lesson-item .n{width:22px;height:22px;border-radius:50%;background:var(--surface-3);display:grid;place-items:center;font-family:var(--font-mono);font-size:.68rem;flex-shrink:0}
.lesson-item[aria-current="true"] .n{background:var(--accent);color:var(--accent-ink)}
.lesson-scroll{max-height:280px;overflow-y:auto;display:flex;flex-direction:column;gap:3px;padding-right:2px}

/* ---------- Main test column ---------- */
.controls-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:space-between}
.duration-group{display:flex;gap:6px;background:var(--surface-2);border-radius:999px;padding:3px}
.duration-group button{border:0;background:transparent;padding:8px 14px;border-radius:999px;font-size:.78rem;font-weight:700;color:var(--text-2)}
.duration-group button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.mode-group{display:flex;gap:6px;flex-wrap:wrap}
.chip-btn{
  display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);
  color:var(--text-2);font-size:.78rem;font-weight:700;padding:8px 14px;border-radius:999px;
}
.chip-btn[aria-pressed="true"]{background:var(--text);color:var(--bg);border-color:var(--text)}

.banner{display:none;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;background:var(--amber-soft);color:var(--amber);border:1px solid var(--amber);border-radius:var(--radius-m);padding:10px 16px;font-size:.82rem;font-weight:600;margin:10px 0}
.banner.show{display:flex}
.banner button{background:transparent;border:1px solid currentColor;color:inherit;border-radius:999px;padding:4px 10px;font-size:.72rem;font-weight:700}
.banner.danger{background:var(--danger-soft);color:var(--danger);border-color:var(--danger)}

.progress-row{display:flex;align-items:center;gap:10px;margin:14px 0 8px;font-size:.72rem;color:var(--text-3);font-weight:600}
.progress-track{flex:1;min-width:0;height:6px;background:var(--surface-3);border-radius:999px;overflow:hidden}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--amber));border-radius:999px;transition:width .2s ease}

.graph-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:14px 16px;margin-bottom:14px}
.graph-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:8px;font-size:.76rem;font-weight:700;color:var(--text-2)}
.graph-head b{font-family:var(--font-mono);color:var(--amber)}
#wpmCanvas{width:100%;height:76px;display:block}

/* Typing card — the runway */
.type-card{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);
  padding:22px 24px 26px;box-shadow:var(--shadow);
}
.type-card.focused{border-color:var(--accent)}
.type-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:8px}
.type-head-label{font-size:.78rem;font-weight:700;color:var(--text-2);display:flex;align-items:center;gap:6px}
.kbd{
  font-family:var(--font-mono);font-size:.68rem;background:var(--surface-2);border:1px solid var(--border);
  border-bottom-width:2px;border-radius:5px;padding:2px 6px;color:var(--text-2);
}
#passage{
  font-family:var(--font-mono);font-size:1.28rem;line-height:1.85;letter-spacing:.01em;
  max-height:230px;overflow-y:auto;user-select:none;outline:none;color:var(--text-3);
  overflow-wrap:break-word;
}
.w{display:inline-block;white-space:nowrap}
.c{position:relative}
.c.correct{color:var(--text)}
.c.incorrect{color:var(--danger);background:var(--danger-soft);border-radius:3px}
.c.pending{color:var(--text-3)}
.c.cursor::before{
  content:"";position:absolute;left:-1px;top:2px;bottom:2px;width:2px;background:var(--accent);
  animation:blink 1s step-end infinite;
}
@keyframes blink{50%{opacity:0}}
.type-hint{
  display:flex;align-items:center;gap:8px;justify-content:center;padding:30px 10px;color:var(--text-3);
  font-size:.9rem;font-weight:600;border:1.5px dashed var(--border);border-radius:var(--radius-m);cursor:pointer;
}
.type-hint.hidden{display:none}

.overlay-center{position:absolute;inset:0;background:color-mix(in srgb, var(--surface) 92%, transparent);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;flex-direction:column;border-radius:var(--radius-l);z-index:5}
.overlay-center.show{display:flex}
.countdown-num{font-family:var(--font-mono);font-size:3.6rem;font-weight:700;color:var(--accent)}

.kb-hint-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:.72rem;color:var(--text-3)}
.kb-hint-row span.kbd{margin-right:4px}

/* Keyboard heatmap */
.keyboard-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:16px;margin-top:14px}
.kb-rows{display:flex;flex-direction:column;gap:6px;align-items:center;margin:10px 0}
.kb-row{display:flex;gap:6px}
.kb-key{
  width:34px;height:34px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:.72rem;font-weight:700;color:var(--text-2);
  text-transform:uppercase;
}
.kb-key[data-heat="1"]{background:color-mix(in srgb, var(--accent) 22%, var(--surface-2))}
.kb-key[data-heat="2"]{background:color-mix(in srgb, var(--amber) 35%, var(--surface-2))}
.kb-key[data-heat="3"]{background:color-mix(in srgb, var(--danger) 45%, var(--surface-2));color:#fff}
.kb-key[data-heat="4"]{background:var(--danger);color:#fff}
.heat-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.68rem;color:var(--text-3);justify-content:center;margin-top:8px}
.heat-dot{width:11px;height:11px;border-radius:3px;display:inline-block;margin-right:4px;vertical-align:middle}

/* Results */
.results-card{display:none;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:28px;margin-top:16px;text-align:center;box-shadow:var(--shadow)}
.results-card.show{display:block}
.results-card .res-label{font-size:.8rem;font-weight:700;color:var(--text-3);letter-spacing:.02em}
.results-card .res-wpm{font-family:var(--font-mono);font-size:3.4rem;font-weight:700;color:var(--accent)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-weight:700;font-size:.82rem;border:1px solid currentColor;margin:8px 0 18px}
.res-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:12px;margin-bottom:20px}
.res-stat b{display:block;font-family:var(--font-mono);font-size:1.3rem}
.res-stat span{font-size:.68rem;color:var(--text-3);font-weight:600}
.res-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* Generic cards / content pages */
.content-shell{max-width:820px;margin:0 auto;padding:48px 20px 70px}
.content-shell h1{font-size:2.1rem;letter-spacing:-.02em}
.content-shell h2{font-size:1.35rem;margin-top:2em}
.content-shell h3{font-size:1.1rem;margin-top:1.5em}
.content-shell p,.content-shell li{color:var(--text-2);font-size:.98rem;line-height:1.75}
.content-shell ul,.content-shell ol{padding-left:1.3em}
.content-shell .updated{color:var(--text-3);font-size:.82rem;margin-bottom:2em}
.callout{background:var(--accent-soft);border:1px solid var(--accent);border-radius:var(--radius-m);padding:16px 18px;color:var(--text);font-size:.92rem;margin:1.5em 0}
.callout.warn{background:var(--amber-soft);border-color:var(--amber)}

.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:1.5em 0}
.mini-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-m);padding:18px}
.mini-card h3{margin-top:0;font-size:1rem}
.mini-card p{font-size:.86rem;margin-bottom:0}

/* Blog index */
.blog-list{display:flex;flex-direction:column;gap:14px}
.blog-item{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:20px;text-decoration:none;color:inherit}
.blog-item:hover{border-color:var(--accent)}
.blog-item h2{font-size:1.1rem;margin-bottom:6px}
.blog-item p{color:var(--text-2);font-size:.88rem;margin:0}
.blog-item .tag{font-size:.68rem;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px;display:inline-block}

/* Footer */
footer{border-top:1px solid var(--border);padding:36px 20px 26px;margin-top:40px}
.footer-grid{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px}
.footer-grid h4{font-size:.78rem;color:var(--text-3);letter-spacing:.03em;margin-bottom:10px}
.footer-grid a{display:block;color:var(--text-2);text-decoration:none;font-size:.85rem;padding:4px 0}
.footer-grid a:hover{color:var(--accent)}
.footer-bottom{max-width:1160px;margin:24px auto 0;padding-top:18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--text-3);font-size:.78rem}

/* Modals */
.modal-overlay{position:fixed;inset:0;background:rgba(10,12,19,.55);display:none;align-items:center;justify-content:center;z-index:200;padding:16px}
.modal-overlay.open{display:flex}
.modal-box{background:var(--surface);border-radius:var(--radius-l);max-width:640px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow);border:1px solid var(--border)}
.modal-head{position:sticky;top:0;background:var(--surface);display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-head h2{margin:0;font-size:1.05rem}
.modal-close{background:var(--surface-2);border:1px solid var(--border);width:32px;height:32px;border-radius:50%;color:var(--text)}
.modal-body{padding:20px 22px}

/* Toast */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--text);color:var(--bg);padding:12px 22px;border-radius:999px;font-weight:700;font-size:.85rem;opacity:0;pointer-events:none;transition:all .25s ease;z-index:300}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Certificate */
.cert-canvas-wrap{display:flex;justify-content:center;margin-bottom:14px}
#certCanvas{max-width:100%;border-radius:8px;border:1px solid var(--border)}

/* Leaderboard table */
/* Wide content scrolls inside its own box instead of widening the page */
.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch}
.lb-table{width:100%;border-collapse:collapse;font-size:.86rem;min-width:420px}
.lb-table th{text-align:left;color:var(--text-3);font-weight:700;font-size:.7rem;padding:8px;letter-spacing:.03em}
.lb-table td{padding:10px 8px;border-top:1px solid var(--border)}
.lb-table tr:first-child td{font-weight:700;color:var(--amber)}

/* Sound wave decoration removed for perf; confetti canvas */
.confetti-container{position:fixed;inset:0;pointer-events:none;z-index:400;overflow:hidden}

/* Responsive */
@media (max-width:980px){
  main.layout{grid-template-columns:1fr}
  .sidebar{position:static;order:2}
  .hero-grid{grid-template-columns:1fr}
  .cockpit{margin:0 auto;max-width:200px}
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:680px){
  body{font-size:15px}
  .topbar{padding:8px 12px;gap:8px}
  .brand img{height:26px}
  .brand-word{font-size:.88rem}
  .brand-word small{display:none}
  /* Only the app nav collapses behind the hamburger; static page navs stay visible */
  .topnav--app{display:none}
  .menu-toggle{display:flex;align-items:center;justify-content:center;flex-shrink:0}
  #liveWpmBadge{display:none}          /* duplicated in the gauge panel below */
  #soundToggleBtn{font-size:0;padding:8px 10px}
  #soundToggleBtn::first-letter{font-size:.9rem}
  .theme-switch{width:46px;height:28px}
  [data-theme="dark"] .theme-switch .knob{transform:translateX(18px)}

  .hero{padding:28px 16px 24px}
  .hero h1{font-size:1.85rem}
  .hero p.lead{font-size:.95rem}
  .hero-eyebrow{font-size:.7rem;padding:5px 10px}
  .hero-cta-row .btn{flex:1 1 100%}
  .hero-trust{gap:16px}
  .cockpit{max-width:150px;margin:20px auto 0}

  main.layout{padding:0 12px 40px;gap:14px}
  .panel-pad{padding:13px}
  .gauge-grid{grid-template-columns:1fr 1fr}
  .gauge b{font-size:1.2rem}

  .controls-bar{gap:8px}
  .duration-group,.mode-group{width:100%}
  .duration-group button{flex:1;padding:9px 4px;font-size:.74rem}
  .mode-group{display:grid;grid-template-columns:1fr 1fr}
  .mode-group .chip-btn:last-child{grid-column:1 / -1}
  .chip-btn{justify-content:center;padding:9px 8px;font-size:.74rem}

  .type-card{padding:16px 14px 18px}
  #passage{font-size:1.02rem;line-height:1.75;max-height:190px}
  .type-head{gap:6px}
  .type-head-label{font-size:.7rem}
  .type-hint{padding:22px 8px;font-size:.82rem}

  .kb-key{width:26px;height:30px;font-size:.62rem;border-radius:6px}
  .kb-row{gap:4px}
  .kb-rows{gap:4px}
  .keyboard-card{padding:12px 8px}
  .heat-legend{gap:9px;font-size:.62rem}

  .results-card{padding:20px 16px}
  .results-card .res-wpm{font-size:2.6rem}
  .res-actions .btn{flex:1 1 100%}

  .lb-table{font-size:.76rem}
  .lb-table th,.lb-table td{padding:7px 4px}

  .content-shell{padding:30px 16px 50px}
  .content-shell h1{font-size:1.65rem}
  .content-shell h2{font-size:1.15rem}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:18px}
  .modal-body{padding:16px}
  .modal-head{padding:14px 16px}
}

@media (max-width:380px){
  .hero h1{font-size:1.6rem}
  .kb-key{width:23px;height:28px}
  .gauge-grid{grid-template-columns:1fr 1fr;gap:6px}
}

/* Static-page nav scrolls horizontally instead of collapsing */
.topnav a{
  display:flex;align-items:center;white-space:nowrap;text-decoration:none;
  color:var(--text-2);font-size:.82rem;font-weight:600;padding:8px 12px;border-radius:999px;
}
.topnav a:hover{background:var(--surface-2);color:var(--text)}
.topnav a[aria-current="page"]{background:var(--accent-soft);color:var(--accent)}

.topnav.mobile-open{
  display:flex !important;position:fixed;top:54px;left:0;right:0;background:var(--surface);
  flex-direction:column;border-bottom:1px solid var(--border);padding:10px;z-index:60;box-shadow:var(--shadow);
}
.topnav.mobile-open button,.topnav.mobile-open a{width:100%;justify-content:flex-start}