/* ====================================================================
   αIAt — Brand Identity System
   Soluções Inteligentes à medida
   ==================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Schibsted+Grotesk:wght@400;500;600;700;800;900&family=Hanken+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  /* ink + neutrals */
  --ink:#1F2937;
  --ink-2:#2C3848;
  --obsidian:#12161D;
  --obsidian-2:#0B0E13;
  --paper:#F7F5F1;
  --paper-2:#EFEBE2;
  --paper-3:#E7E2D7;
  --card:#FFFFFF;
  --muted:#6B7280;
  --muted-2:#9aa1ab;
  --line:rgba(31,41,55,.12);
  --line-2:rgba(31,41,55,.22);
  --line-dark:rgba(247,245,241,.14);
  --line-dark-2:rgba(247,245,241,.28);
  --cream:#F6F3ED;

  /* gradient signature */
  --g0:#F76B45;  /* orange  */
  --g1:#F2556E;  /* coral   */
  --g2:#E5489C;  /* magenta */
  --g3:#B83EC6;  /* purple  */
  --grad:linear-gradient(100deg, var(--g0) 0%, var(--g1) 34%, var(--g2) 64%, var(--g3) 100%);
  --grad-soft:linear-gradient(100deg, #F76B45, #B83EC6);

  --font-d:"Schibsted Grotesk",system-ui,sans-serif;
  --font-t:"Hanken Grotesk",system-ui,sans-serif;
  --font-m:"JetBrains Mono",ui-monospace,monospace;

  --rail:60px;
  --maxw:1240px;
  --pad:clamp(24px,6vw,104px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-t);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.55;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--g2);color:#fff}

/* ---- left rail nav ---- */
.rail{
  position:fixed;top:0;left:0;height:100vh;width:var(--rail);z-index:40;
  display:flex;flex-direction:column;align-items:center;
  padding:18px 0;
  border-right:1px solid var(--line);
  background:rgba(247,245,241,.72);backdrop-filter:blur(10px);
  mix-blend-mode:normal;
}
.rail.on-dark{border-color:var(--line-dark);background:rgba(11,14,19,.55)}
.rail__mark{width:26px;height:26px;flex:0 0 auto}
.rail__mark img{width:100%;height:100%;object-fit:contain}
.rail__nums{margin:auto 0;display:flex;flex-direction:column;gap:3px}
.rail__num{
  font-family:var(--font-m);font-size:11px;font-weight:500;letter-spacing:.04em;
  color:var(--muted-2);writing-mode:vertical-rl;padding:9px 4px;
  border-radius:6px;transition:color .25s,background .25s;cursor:pointer;
}
.rail__num:hover{color:var(--ink)}
.rail__num.active{color:#fff;background:var(--grad)}
.rail.on-dark .rail__num{color:rgba(247,245,241,.45)}
.rail.on-dark .rail__num:hover{color:var(--cream)}
.rail.on-dark .rail__num.active{color:#fff}
.rail__foot{font-family:var(--font-m);font-size:10px;color:var(--muted-2);
  writing-mode:vertical-rl;letter-spacing:.14em;text-transform:uppercase}

/* ---- section scaffold ---- */
.sec{position:relative;padding:clamp(82px,12vh,168px) 0;scroll-margin-top:0}
.sec--dark{background:var(--obsidian);color:var(--cream)}
.sec--paper2{background:var(--paper-2)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad) 0 calc(var(--pad) + var(--rail))}
.eyebrow{
  font-family:var(--font-m);font-size:12px;font-weight:500;letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);
  display:inline-flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ink);opacity:.5}
.sec--dark .eyebrow{color:var(--muted-2)}
.sec--dark .eyebrow::before{background:var(--cream);opacity:.5}
.sec__num{position:absolute;font-family:var(--font-m);font-size:12px;font-weight:500;
  letter-spacing:.1em;color:var(--muted);top:clamp(40px,7vh,78px);left:calc(var(--rail) + 16px)}
@media(max-width:880px){.sec__num{left:16px}}
.h-sec{font-family:var(--font-d);font-weight:700;line-height:1.02;letter-spacing:-.025em;
  font-size:clamp(2rem,4.4vw,3.4rem);margin:.5em 0 0}
.lead{font-size:clamp(1.06rem,1.5vw,1.32rem);line-height:1.55;color:var(--ink-2);max-width:62ch;font-weight:400}
.sec--dark .lead{color:rgba(246,243,237,.78)}
.muted{color:var(--muted)}
.mono{font-family:var(--font-m)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* dividers / chalk lines */
.rule{height:1px;background:var(--line);border:0}
.sec--dark .rule{background:var(--line-dark)}
.thread{height:3px;border-radius:2px;background:var(--grad)}

/* ============ COVER ============ */
.cover{min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  position:relative;overflow:hidden}
.cover__glow{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 50% at 18% 8%, rgba(247,107,69,.18), transparent 60%),
    radial-gradient(55% 55% at 92% 96%, rgba(184,62,198,.20), transparent 62%);}
.cover__grid{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line-dark) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-dark) 1px,transparent 1px);
  background-size:64px 64px;mask:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent)}
.cover__inner{position:relative;z-index:2}
.cover__tag{display:flex;justify-content:space-between;align-items:flex-start;
  font-family:var(--font-m);font-size:12px;letter-spacing:.1em;color:var(--muted-2);
  text-transform:uppercase;margin-bottom:clamp(40px,8vh,90px);gap:20px;flex-wrap:wrap}
.cover__logo{width:min(560px,68vw)}
.cover__slogan{font-family:var(--font-d);font-weight:600;
  font-size:clamp(1.5rem,3.4vw,2.6rem);letter-spacing:-.02em;margin-top:.7em;line-height:1.1}
.cover__sub{margin-top:1.4em;max-width:54ch;color:rgba(246,243,237,.7);
  font-size:clamp(1rem,1.4vw,1.18rem)}
.cover__ticks{position:absolute;left:0;right:0;bottom:0;height:46px;z-index:2;
  display:flex;align-items:flex-end;justify-content:space-between;
  padding:0 var(--pad) 22px calc(var(--pad) + var(--rail));
  font-family:var(--font-m);font-size:11px;color:var(--muted-2);letter-spacing:.1em}
.ticks{flex:1;height:18px;margin:0 26px;position:relative;
  background:
   repeating-linear-gradient(90deg, var(--line-dark-2) 0 1px, transparent 1px 24px);
  -webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}

/* ============ grids ============ */
.grid{display:grid;gap:clamp(20px,3vw,40px)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.mt-xl{margin-top:clamp(46px,7vh,86px)}
.mt-l{margin-top:clamp(30px,4vh,52px)}
.mt-m{margin-top:28px}
.mt-s{margin-top:16px}

/* concept */
.concept-word{font-family:var(--font-d);font-weight:800;letter-spacing:-.03em;
  line-height:.92;font-size:clamp(3.2rem,11vw,9rem)}
.concept-split{display:flex;flex-wrap:wrap;align-items:baseline;gap:.04em}
.cs-piece{position:relative;padding-top:.36em}
.cs-piece b{font-weight:800}
.cs-label{position:absolute;top:0;left:0;font-family:var(--font-m);font-size:clamp(11px,1vw,13px);
  font-weight:500;letter-spacing:.04em;color:var(--muted);white-space:nowrap}
.cs-piece::after{content:"";position:absolute;left:2px;top:1.7em;width:14px;height:.5em;
  border-left:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}

/* card primitive */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:clamp(22px,2.4vw,34px)}
.sec--dark .card{background:rgba(247,245,241,.04);border-color:var(--line-dark)}
.card__k{font-family:var(--font-m);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.card h4{font-family:var(--font-d);font-weight:700;font-size:1.18rem;letter-spacing:-.01em;margin-top:.3em}
.card p{margin-top:.55em;color:var(--ink-2);font-size:.98rem}
.sec--dark .card p{color:rgba(246,243,237,.7)}

/* ===== LOGO section ===== */
.logo-stage{display:grid;place-items:center;border-radius:16px;padding:clamp(40px,7vw,84px);min-height:240px}
.stage-light{background:var(--card);border:1px solid var(--line)}
.stage-dark{background:var(--obsidian)}
.logo-stage img{width:min(360px,70%)}
.stage-cap{display:flex;justify-content:space-between;margin-top:14px;
  font-family:var(--font-m);font-size:12px;color:var(--muted);letter-spacing:.04em}

.anatomy{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:clamp(40px,7vw,80px) clamp(30px,5vw,70px)}
.anatomy img{width:min(440px,82%);margin:0 auto}
.callouts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}
.callout{border-top:1px solid var(--line-2);padding-top:14px}
.callout .k{font-family:var(--font-d);font-weight:800;font-size:1.5rem;letter-spacing:-.02em}
.callout .k.g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.callout .t{font-family:var(--font-m);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.callout p{font-size:.92rem;color:var(--ink-2);margin-top:8px}

/* clearspace */
.clearspace{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:clamp(30px,4vw,52px);position:relative;overflow:hidden}
.cs-frame{position:relative;display:inline-block;margin:0 auto}
.cs-grid{display:grid;grid-template-columns:1fr auto 1fr;grid-template-rows:1fr auto 1fr;gap:0;
  border:1px dashed var(--line-2);padding:0}
.cs-pad{background:repeating-linear-gradient(45deg,rgba(31,41,55,.05) 0 6px,transparent 6px 12px)}
.cs-center{padding:18px 26px;display:grid;place-items:center}
.cs-center img{width:min(280px,60vw)}
.cs-mark{font-family:var(--font-m);font-size:11px;color:var(--muted);position:absolute}

/* variations */
.var-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.var{border-radius:13px;border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column}
.var__art{aspect-ratio:5/3;display:grid;place-items:center;padding:22px}
.var__art img{width:78%}
.var__art.dark{background:var(--obsidian)}
.var__art.light{background:var(--card)}
.var__art.paper{background:var(--paper-2)}
.var__art.grad{background:var(--grad)}
.var__cap{padding:11px 14px;border-top:1px solid var(--line);font-family:var(--font-m);
  font-size:11px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;background:var(--card)}
.mono-fill{filter:brightness(0) saturate(100%);opacity:.92}
.cream-fill{filter:brightness(0) invert(1);opacity:.95}

/* misuse */
.dont-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dont{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:var(--card)}
.dont__art{aspect-ratio:16/9;display:grid;place-items:center;background:var(--paper-2);padding:20px;position:relative;overflow:hidden}
.dont__art img{width:64%}
.dont__x{position:absolute;top:10px;left:10px;width:22px;height:22px;border-radius:50%;
  background:var(--ink);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700}
.dont__cap{padding:12px 15px;font-size:.9rem;color:var(--ink-2);border-top:1px solid var(--line)}
.dont__cap b{color:var(--ink);font-weight:600}

/* ===== COLOR ===== */
.grad-hero{border-radius:18px;background:var(--grad);min-height:clamp(220px,30vh,340px);
  position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:clamp(22px,3vw,38px)}
.grad-hero__meta{font-family:var(--font-m);font-size:12px;color:rgba(255,255,255,.92);
  letter-spacing:.04em;display:flex;gap:26px;flex-wrap:wrap}
.grad-hero__angle{position:absolute;top:clamp(20px,3vw,34px);right:clamp(20px,3vw,34px);
  font-family:var(--font-d);font-weight:800;font-size:clamp(2rem,4vw,3rem);color:rgba(255,255,255,.9)}
.stops{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stop{border-radius:13px;overflow:hidden;border:1px solid var(--line-dark);cursor:pointer;background:rgba(255,255,255,.02)}
.stop__sw{height:88px}
.stop__info{padding:12px 14px;display:flex;flex-direction:column;gap:3px}
.stop__hex{font-family:var(--font-m);font-size:14px;font-weight:600;letter-spacing:.02em}
.stop__name{font-family:var(--font-m);font-size:11px;color:var(--muted-2);letter-spacing:.08em;text-transform:uppercase}
.scale{display:grid;grid-template-columns:repeat(6,1fr);gap:0;border-radius:13px;overflow:hidden;border:1px solid var(--line-dark)}
.sw{padding:18px 14px 16px;min-height:108px;display:flex;flex-direction:column;justify-content:flex-end;cursor:pointer}
.sw__hex{font-family:var(--font-m);font-size:12.5px;font-weight:600}
.sw__name{font-family:var(--font-m);font-size:10.5px;opacity:.7;margin-top:3px;letter-spacing:.04em}
.ratio{display:flex;height:46px;border-radius:10px;overflow:hidden;border:1px solid var(--line-dark)}
.ratio span{display:grid;place-items:center;font-family:var(--font-m);font-size:11px;letter-spacing:.04em}

/* ===== TYPE ===== */
.type-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:clamp(26px,3.4vw,44px)}
.type-aa{font-family:var(--font-d);font-weight:800;font-size:clamp(5rem,12vw,9rem);line-height:.86;letter-spacing:-.03em}
.type-aa.t{font-family:var(--font-t)}
.type-aa.m{font-family:var(--font-m);font-weight:600;font-size:clamp(4rem,9vw,7rem)}
.type-meta{font-family:var(--font-m);font-size:12px;color:var(--muted);letter-spacing:.06em;margin-top:18px}
.type-name{font-family:var(--font-d);font-weight:700;font-size:1.4rem;letter-spacing:-.01em;margin-top:6px}
.glyphset{font-family:var(--font-d);font-size:1.05rem;color:var(--ink-2);margin-top:14px;letter-spacing:.02em;word-spacing:.1em}
.weights{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;align-items:baseline}
.weights span{font-family:var(--font-d);font-size:1.5rem;letter-spacing:-.01em}
.scale-row{display:flex;align-items:baseline;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.scale-row .spec{font-family:var(--font-m);font-size:11px;color:var(--muted);width:140px;flex:0 0 140px;letter-spacing:.02em}
.scale-row .demo{font-family:var(--font-d);letter-spacing:-.02em;line-height:1.05;flex:1;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== ELEMENTS / motif ===== */
.motif{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.motif__art{aspect-ratio:16/10;position:relative;overflow:hidden;display:grid;place-items:center;background:var(--paper-2)}
.motif__body{padding:20px 22px 24px;border-top:1px solid var(--line)}
.motif__body h4{font-family:var(--font-d);font-weight:700;font-size:1.12rem}
.motif__body p{color:var(--ink-2);font-size:.94rem;margin-top:7px}
.tick-strip{position:absolute;inset:0;background:
  repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 22px);
  -webkit-mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.tick-strip.tall{background:
  repeating-linear-gradient(90deg, var(--line-2) 0 1.5px, transparent 1.5px 44px),
  repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 22px)}
.thread-svg{width:80%;height:auto}
.placeholder{position:relative;width:100%;height:100%;
  background:repeating-linear-gradient(45deg,var(--paper-3) 0 10px,var(--paper-2) 10px 20px);
  display:grid;place-items:center}
.placeholder span{font-family:var(--font-m);font-size:12px;color:var(--muted);letter-spacing:.06em;
  background:var(--paper);padding:5px 10px;border-radius:20px;border:1px solid var(--line)}

/* ===== VOICE ===== */
.adj-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.adj{border:1px solid var(--line);border-radius:12px;padding:20px 16px;background:var(--card)}
.adj .n{font-family:var(--font-m);font-size:11px;color:var(--muted)}
.adj .w{font-family:var(--font-d);font-weight:700;font-size:1.25rem;letter-spacing:-.01em;margin-top:8px}
.adj .w.g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.vt{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.vt > div{padding:clamp(22px,2.6vw,32px)}
.vt .yes{background:var(--card)}
.vt .no{background:var(--paper-2);border-left:1px solid var(--line)}
.vt h5{font-family:var(--font-m);font-size:12px;letter-spacing:.12em;text-transform:uppercase;display:flex;align-items:center;gap:8px}
.vt .yes h5{color:#2f7d52}.vt .no h5{color:var(--muted)}
.vt ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:13px}
.vt li{font-size:1rem;color:var(--ink-2);padding-left:20px;position:relative;line-height:1.45}
.vt .yes li::before{content:"—";position:absolute;left:0;color:var(--g2)}
.vt .no li::before{content:"×";position:absolute;left:0;color:var(--muted-2)}
.slogan-lock{background:var(--obsidian);border-radius:16px;padding:clamp(40px,6vw,72px);text-align:center;color:var(--cream)}
.slogan-lock .s{font-family:var(--font-d);font-weight:700;font-size:clamp(1.6rem,3.4vw,2.7rem);letter-spacing:-.02em}
.slogan-lock .e{font-family:var(--font-m);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2);margin-top:16px}

/* ===== APPLICATIONS ===== */
.app-card{display:flex;flex-direction:column;gap:14px}
.app-cap{font-family:var(--font-m);font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.bizcard{aspect-ratio:1.586;border-radius:14px;overflow:hidden;position:relative;
  box-shadow:0 24px 60px -28px rgba(31,41,55,.5);border:1px solid var(--line)}
.bizcard.front{background:var(--obsidian);padding:26px;display:flex;flex-direction:column;justify-content:space-between}
.bizcard.front .thread-top{position:absolute;left:0;top:0;height:5px;width:100%;background:var(--grad)}
.bizcard.front img{width:46%}
.bizcard.front .meta{font-family:var(--font-m);font-size:11px;color:var(--muted-2);letter-spacing:.06em;line-height:1.7}
.bizcard.back{background:var(--card);padding:26px;display:flex;flex-direction:column;justify-content:space-between}
.bizcard.back .nm{font-family:var(--font-d);font-weight:700;font-size:1.3rem;letter-spacing:-.01em}
.bizcard.back .ro{font-family:var(--font-m);font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin-top:4px}
.bizcard.back .det{font-family:var(--font-m);font-size:11.5px;color:var(--ink-2);line-height:1.85}
.bizcard.back .ticks-mini{height:14px;background:repeating-linear-gradient(90deg,var(--line-2) 0 1px,transparent 1px 16px);
  -webkit-mask:linear-gradient(90deg,#000,transparent)}

.avatar{width:120px;height:120px;border-radius:28px;background:var(--obsidian);display:grid;place-items:center;
  box-shadow:0 16px 40px -20px rgba(31,41,55,.6)}
.avatar img{width:54%}
.avatar.alt{background:var(--grad)}
.avatar.alt img{filter:brightness(0) invert(1)}
.avatar.light{background:var(--card);border:1px solid var(--line)}
.avatars{display:flex;gap:20px;align-items:center;flex-wrap:wrap}

.post{aspect-ratio:1;border-radius:16px;overflow:hidden;position:relative;background:var(--obsidian);
  padding:clamp(22px,3vw,34px);display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--line)}
.post .glow{position:absolute;inset:0;background:radial-gradient(60% 50% at 85% 100%,rgba(184,62,198,.3),transparent 60%),radial-gradient(50% 40% at 5% 0%,rgba(247,107,69,.22),transparent)}
.post > *{position:relative;z-index:1}
.post .kicker{font-family:var(--font-m);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.post .big{font-family:var(--font-d);font-weight:800;font-size:clamp(1.5rem,3.4vw,2.4rem);letter-spacing:-.02em;line-height:1.04;color:var(--cream)}
.post .big em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.post img.lg{width:34%}

.browser{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 70px -34px rgba(31,41,55,.45);background:var(--card)}
.browser__bar{height:42px;background:var(--paper-2);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:0 16px}
.browser__dot{width:11px;height:11px;border-radius:50%;background:var(--line-2)}
.browser__url{margin-left:14px;font-family:var(--font-m);font-size:12px;color:var(--muted);background:var(--card);border:1px solid var(--line);border-radius:20px;padding:5px 14px}
.hero-web{background:var(--obsidian);color:var(--cream);padding:clamp(40px,6vw,76px);position:relative;overflow:hidden}
.hero-web .glow{position:absolute;inset:0;background:radial-gradient(50% 60% at 88% 110%,rgba(184,62,198,.26),transparent 60%),radial-gradient(40% 50% at 0% -10%,rgba(247,107,69,.2),transparent 60%)}
.hero-web__in{position:relative;z-index:1;max-width:640px}
.hero-web .nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:clamp(40px,7vw,80px)}
.hero-web .nav img{width:108px}
.hero-web .nav .links{display:flex;gap:24px;font-family:var(--font-m);font-size:12px;color:var(--muted-2);letter-spacing:.06em;text-transform:uppercase}
.hero-web h2{font-family:var(--font-d);font-weight:800;font-size:clamp(2rem,4.4vw,3.4rem);letter-spacing:-.03em;line-height:1.02}
.hero-web h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-web p{color:rgba(246,243,237,.72);margin-top:18px;font-size:1.1rem;max-width:48ch}
.hero-web .cta{margin-top:30px;display:inline-flex;gap:12px;align-items:center;font-family:var(--font-d);font-weight:600;
  background:var(--grad);color:#fff;padding:13px 24px;border-radius:30px;font-size:1rem}

.sig{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px 30px;display:flex;gap:22px;align-items:center}
.sig__bar{width:3px;align-self:stretch;border-radius:3px;background:var(--grad)}
.sig img{width:84px}
.sig .nm{font-family:var(--font-d);font-weight:700;font-size:1.05rem}
.sig .ro{font-size:.86rem;color:var(--muted)}
.sig .ct{font-family:var(--font-m);font-size:11.5px;color:var(--ink-2);line-height:1.7;margin-top:8px}

.slide{aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:var(--obsidian);color:var(--cream);
  position:relative;padding:clamp(28px,4vw,52px);display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--line)}
.slide .glow{position:absolute;inset:0;background:radial-gradient(46% 58% at 92% 108%,rgba(184,62,198,.24),transparent 60%)}
.slide > *{position:relative;z-index:1}
.slide .top{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-m);font-size:12px;color:var(--muted-2);letter-spacing:.08em}
.slide .top img{width:78px}
.slide h3{font-family:var(--font-d);font-weight:800;font-size:clamp(1.6rem,3.6vw,2.8rem);letter-spacing:-.025em;line-height:1.04;max-width:18ch}
.slide h3 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.slide .foot{font-family:var(--font-m);font-size:12px;color:var(--muted-2);display:flex;justify-content:space-between}

/* ===== FOOTER ===== */
.foot{background:var(--obsidian-2);color:var(--cream);padding:clamp(60px,9vh,110px) 0 50px}
.foot__top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.foot img{width:200px}
.foot__slogan{font-family:var(--font-d);font-weight:600;font-size:clamp(1.2rem,2.2vw,1.7rem);letter-spacing:-.01em}
.foot__meta{display:flex;justify-content:space-between;margin-top:46px;padding-top:24px;border-top:1px solid var(--line-dark);
  font-family:var(--font-m);font-size:12px;color:var(--muted-2);letter-spacing:.04em;flex-wrap:wrap;gap:14px}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;font-family:var(--font-m);font-size:12.5px;letter-spacing:.04em;
  padding:11px 18px;border-radius:30px;opacity:0;transition:.3s;z-index:80;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:880px){
  :root{--rail:0px}
  .rail{display:none}
  .wrap{padding:0 24px}
  .g-2,.g-3,.g-4,.callouts,.var-grid,.dont-grid,.stops,.adj-grid{grid-template-columns:repeat(2,1fr)!important}
  .scale{grid-template-columns:repeat(3,1fr)}
  .vt,.cover__tag{grid-template-columns:1fr}
  .vt .no{border-left:0;border-top:1px solid var(--line)}
  .scale-row .demo{font-size:1.4rem!important}
}
@media(max-width:520px){
  .g-2,.g-3,.g-4,.callouts,.var-grid,.dont-grid,.stops,.adj-grid{grid-template-columns:1fr!important}
}