/* ============================================================
   ASKA v5 — system.css
   Single shared token + component layer (Azaraki's component contract).
   Rule set: landing-page-design skill. Geist only. Tokens only.
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  /* type scale (Tailwind steps only) */
  --t-xs:12px;  --t-sm:14px; --t-base:16px; --t-lg:18px; --t-xl:20px;
  --t-2xl:24px; --t-3xl:30px; --t-4xl:36px; --t-5xl:clamp(36px,6vw,48px); --t-6xl:clamp(40px,7vw,60px);

  /* spacing tokens only */
  --s-0:0; --s-25:2px; --s-50:4px; --s-75:8px; --s-100:12px; --s-200:16px;
  --s-300:24px; --s-400:32px; --s-500:40px; --s-600:48px; --s-700:64px;
  --s-800:80px; --s-900:96px;

  /* radii (Tailwind values) */
  --r-sm:4px; --r-md:8px; --r-lg:12px; --r-xl:16px; --r-2xl:20px;

  /* brand palette (flat, no background gradients) */
  --navy:#0A2463; --navy-deep:#071A45; --cyan:#00D2FF; --royal:#1E5AA8;
  --orange:#F97316; --steel:#4A5568; --steel-light:#7D8A96;
  --warm-bg:#F4EFE6; --warm-card:#FFFDF8;
  --dark-bg:#000000; --dark-1:#181818; --dark-2:#1F1F1F; --dark-3:#272727;
  --ink:#16213E; --muted:#51607F; --line:#E4E9F2;

  --font-sans:"Geist","Geist Fallback",system-ui,sans-serif;
  --font-mono:"Geist Mono","Geist Mono Fallback",ui-monospace,monospace;

  /* fluid motion (B7) */
  --ease:cubic-bezier(0.32,0.72,0,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-sans);font-size:var(--t-base);line-height:1.5;color:var(--ink);background:var(--warm-bg);-webkit-font-smoothing:antialiased;overflow-x:clip;}
img{max-width:100%;display:block;}
a{color:inherit;}

/* text-wrap for no orphaned words (B1) */
h1,h2,h3,h4,.hero-h{text-wrap:balance;}
p,li{text-wrap:pretty;}

::selection{background:var(--cyan);color:var(--navy-deep);}

/* ---------- Typography (scale only) ---------- */
.t-xs{font-size:var(--t-xs);line-height:16px;}
.t-sm{font-size:var(--t-sm);line-height:20px;}
.t-base{font-size:var(--t-base);line-height:24px;}
.t-lg{font-size:var(--t-lg);line-height:28px;}
.t-xl{font-size:var(--t-xl);line-height:28px;}
.t-2xl{font-size:var(--t-2xl);line-height:32px;}
.t-3xl{font-size:var(--t-3xl);line-height:36px;}
.t-4xl{font-size:var(--t-4xl);line-height:40px;}
.t-5xl{font-size:var(--t-5xl);line-height:1.05;}
.t-6xl{font-size:var(--t-6xl);line-height:1.05;}
.fw-400{font-weight:400;} .fw-500{font-weight:500;} .fw-600{font-weight:600;} .fw-700{font-weight:700;}
.mono{font-family:var(--font-mono);}
.mono-label{font-family:var(--font-mono);font-size:var(--t-xs);font-weight:600;letter-spacing:.22em;text-transform:uppercase;}

/* Hero heading gradient text (B5 — the only gradients allowed) */
.hero-h{font-size:clamp(28px,5.5vw,48px);line-height:1.08;
  background:linear-gradient(90deg,#FFFFFF,#9B9B9B);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:680px;
}
.hero-h.light{
  background:linear-gradient(90deg,#000000,#666666);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:680px;}

/* ---------- Buttons (B1/B2) ---------- */
.btn{
  display:inline-flex;align-items:center;gap:var(--s-100);
  padding:var(--s-75) var(--s-100);
  font-family:var(--font-sans);font-size:var(--t-base);font-weight:600;
  border-radius:var(--r-lg);border:1px solid transparent;cursor:pointer;
  text-decoration:none;transition:transform 700ms var(--ease),background 700ms var(--ease),color 700ms var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.btn-cyan{background:var(--cyan);color:var(--navy-deep);}
.btn-cyan:hover{background:#33dcff;}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost-dark:hover{border-color:var(--cyan);color:var(--cyan);}
.btn-orange{background:var(--orange);color:#fff;}
.btn-orange:hover{background:#ff8b3d;}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#22304f;}
.btn-sm{font-size:var(--t-sm);line-height:20px;padding:var(--s-75) var(--s-100);}

/* ---------- Cards (B3 nested radius, B4 no single-side borders) ---------- */
.card{
  background:var(--dark-2);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-xl);padding:var(--s-500);
  transition:transform 700ms var(--ease),box-shadow 700ms var(--ease);
}
.card:hover{transform:translateY(-4px);}
.card-light{background:var(--warm-card);border:1px solid var(--line);border-radius:var(--r-xl);padding:var(--s-500);}
.card-light:hover{box-shadow:0 16px 40px rgba(10,36,99,.08);}

/* inner pill radius = outer radius - gap (B3) */
.pill{
  display:inline-block;padding:var(--s-50) var(--s-100);
  border-radius:var(--r-md);background:rgba(255,255,255,.08);
  font-family:var(--font-mono);font-size:var(--t-xs);font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
}
.pill.warm{background:rgba(249,115,22,.12);color:#B45309;}

/* ---------- Section shell — fluid, full-width feel with gutters ---------- */
.section{width:min(100% - 48px,1200px);margin-inline:auto;padding:var(--s-900) var(--s-300);}
.section-narrow{width:min(100% - 48px,840px);margin-inline:auto;padding:var(--s-900) var(--s-300);}
@media(max-width:720px){.section,.section-narrow{padding-left:var(--s-200);padding-right:var(--s-200);width:min(100% - 32px,1200px);}}
.kicker{font-family:var(--font-mono);font-size:var(--t-xs);font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:var(--s-200);}
h2.sec{font-size:var(--t-4xl);line-height:40px;font-weight:600;margin-bottom:var(--s-200);}
.sec-lead{color:var(--muted);max-width:620px;margin-bottom:var(--s-500);}

/* ---------- Grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s-400);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-300);}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s-300);}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr;}.grid-2{grid-template-columns:1fr;}}
@media(max-width:560px){.grid-3,.grid-4{grid-template-columns:1fr;}}

/* ---------- Topbar ---------- */
.topbar{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:var(--s-200) var(--s-300);background:rgba(0,0,0,.6);backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.08);}
.topbar.light-bg{background:rgba(244,239,230,.85);border-bottom-color:var(--line);}
.brand{display:flex;align-items:center;gap:var(--s-100);font-weight:600;font-size:var(--t-lg);text-decoration:none;color:#fff;}
.topbar.light-bg .brand{color:var(--ink);}
.brand img{height:28px;width:auto;}
.nav{display:flex;align-items:center;gap:var(--s-300);}
.nav-links{display:inline-flex;align-items:center;gap:var(--s-400);}
.nav-links + .btn{margin-left:var(--s-300);}
.nav a{color:rgba(255,255,255,.75);text-decoration:none;font-size:var(--t-sm);font-weight:500;transition:color 300ms var(--ease);}
.nav a:hover{color:#fff;}
.nav a.btn{color:var(--navy-deep);}
.topbar.light-bg .nav a{color:var(--muted);}
.topbar.light-bg .nav a:hover{color:var(--ink);}
.topbar.light-bg .nav a.btn{color:var(--navy-deep);}
@media(max-width:720px){.nav .nav-links{display:none;}}

/* ---------- Footer ---------- */
footer{background:var(--dark-1);color:rgba(255,255,255,.6);padding:var(--s-600) var(--s-300);font-size:var(--t-sm);}
.foot-wrap{max-width:1120px;margin:0 auto;display:flex;justify-content:space-between;gap:var(--s-300);flex-wrap:wrap;align-items:center;}
footer img{height:22px;opacity:.85;vertical-align:middle;margin-right:var(--s-75);}
footer .legal{font-style:normal;}
footer a{color:rgba(255,255,255,.7);text-decoration:none;}
footer a:hover{color:#fff;}

/* ---------- Motion (B7) ---------- */
.reveal{opacity:0;transform:translateY(64px) scale(.98);filter:blur(8px);
  transition:opacity 800ms var(--ease),transform 800ms var(--ease),filter 800ms var(--ease);}
.reveal.in{opacity:1;transform:none;filter:none;}
.stagger>*{opacity:0;transform:translateY(48px);filter:blur(6px);
  transition:opacity 800ms var(--ease),transform 800ms var(--ease),filter 800ms var(--ease);}
.stagger.in>*{opacity:1;transform:none;filter:none;}
.stagger.in>*:nth-child(1){transition-delay:100ms;}
.stagger.in>*:nth-child(2){transition-delay:150ms;}
.stagger.in>*:nth-child(3){transition-delay:200ms;}
.stagger.in>*:nth-child(4){transition-delay:250ms;}
.stagger.in>*:nth-child(5){transition-delay:300ms;}

/* B11 tagline reveal — word by word */
.tagline{max-width:840px;margin:0 auto;}
.tagline .tw{opacity:.3;transition:opacity 800ms var(--ease);}
.tagline .tw.on{opacity:1;}

/* FAQ */
.faq details{border-bottom:1px solid var(--line);padding:var(--s-200) 0;}
.faq summary{font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}
.faq summary::after{content:"+";font-family:var(--font-mono);color:var(--muted);}
.faq details[open] summary::after{content:"\2212";}
.faq details p{color:var(--muted);padding-top:var(--s-100);max-width:60ch;}
.faq.dark{border-color:rgba(255,255,255,.1);}
.faq.dark details{border-bottom-color:rgba(255,255,255,.12);}
.faq.dark summary{color:#fff;}
.faq.dark p{color:rgba(255,255,255,.7);}
.faq.dark summary::after{color:rgba(255,255,255,.5);}

@media (prefers-reduced-motion:reduce){
  .reveal,.stagger>*,.tagline .tw{opacity:1;transform:none;filter:none;transition:none;}
  .tagline .tw.on{opacity:1;}
}

/* ============ Mobile tiers (v5.2) ============ */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr;}
  .grid-2{grid-template-columns:1fr;}
  .section,.section-narrow{padding:var(--s-700) var(--s-200);}
}
@media(max-width:720px){
  .nav-links{display:none;}
  .topbar{padding:var(--s-100) var(--s-200);}
  .btn,.btn-sm{padding:12px 16px;font-size:var(--t-base);line-height:24px;min-height:44px;display:inline-flex;align-items:center;}
  h2.sec{font-size:var(--t-3xl);line-height:36px;}
  .tagline p.t-4xl{font-size:var(--t-3xl);line-height:36px;}
  .tagline p.t-3xl{font-size:var(--t-2xl);line-height:32px;}
}
@media(max-width:560px){
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .section,.section-narrow{padding:var(--s-600) var(--s-100);}
  body{font-size:16px;line-height:24px;}
  .card,.card-light{padding:var(--s-300);}
  .tagline{text-align:center;}
}

/* footer 3-zone layout (v5.6) */
.foot-wrap{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center;}
.foot-switch{display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center;}
.foot-label{font-family:var(--font-mono);font-size:var(--t-xs);letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.5);}
footer .foot-wrap>div:last-child{text-align:right;}
@media(max-width:720px){.foot-wrap{grid-template-columns:1fr;text-align:center;gap:16px;}footer .foot-wrap>div:last-child{text-align:center;}.foot-switch{align-items:center;}}

/* ============ Shared contained-card component (v5.7) — both divisions inherit ============ */
.card-dark{
  background:linear-gradient(160deg,#0d1b45,#081330);
  border:1px solid rgba(0,210,255,.14);border-radius:24px;position:relative;overflow:hidden;
  box-shadow:0 24px 70px rgba(0,0,0,.35);padding:80px 48px;
}
.card-dark::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--cyan),transparent 70%);}
.card-dark::after{content:"";position:absolute;top:-40%;right:-20%;width:55%;height:120%;border-radius:50%;
  background:radial-gradient(closest-side,rgba(0,210,255,.10),transparent);pointer-events:none;}
@media(max-width:720px){.card-dark{padding:48px 24px;}}
/* light-surface card (Physical warm) with depth */
.card-warm{
  background:#fff;border:1px solid var(--line);border-radius:24px;position:relative;overflow:hidden;
  box-shadow:0 18px 50px rgba(20,16,8,.08);padding:56px 48px;
}
.card-warm::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--orange),transparent 70%);}
@media(max-width:720px){.card-warm{padding:40px 24px;}}