/* ==========================================================================
   Qu'an — landing / marketing page styles.
   Self-contained: does NOT depend on css/theme.css (which sets body{overflow:hidden}
   for the terminal). Reuses the same monochrome palette + Apple-native tokens so
   the marketing site and the product read as one design language.
   ========================================================================== */
:root{
  --bg:#080808; --bg-2:#0d0d0d; --panel:#141414; --panel-2:#1a1a1a;
  --line:#242424; --line-2:#333;
  --ink:#ffffff; --ink-dim:#c9c9c9; --muted:#8a8a8a; --faint:#5c5c5c;
  --accent:#ffffff;               /* monochrome: "accent" is just bright ink */
  --font-sans:-apple-system,BlinkMacSystemFont,'SF Pro Text','SF Pro Display',system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --radius-sm:10px; --radius-md:14px; --radius-lg:20px; --radius-xl:28px;
  --glass:rgba(18,18,18,0.72); --glass-line:rgba(255,255,255,0.08);
  --shadow:0 12px 40px rgba(0,0,0,0.5); --shadow-sm:0 2px 12px rgba(0,0,0,0.4);
  --ease:cubic-bezier(0.2,0.7,0.2,1);
  --maxw:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);line-height:1.55;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
::selection{background:rgba(255,255,255,0.16);}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.eyebrow{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--muted);font-weight:600;}

/* ---- ambient backdrop -------------------------------------------------- */
.bg-field{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(255,255,255,0.06), transparent 60%),
    radial-gradient(900px 500px at 85% 20%, rgba(255,255,255,0.03), transparent 55%),
    var(--bg);
}
.bg-grid{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 72%);
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 72%);
}

/* ---- nav --------------------------------------------------------------- */
.nav{position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);
  background:rgba(8,8,8,0.62);border-bottom:0.5px solid var(--glass-line);}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:22px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em;font-size:16px;}
.brand .glyph{width:26px;height:26px;border-radius:8px;border:0.5px solid var(--line-2);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:15px;
  background:linear-gradient(180deg,#1c1c1c,#0f0f0f);box-shadow:var(--shadow-sm);}
.nav-links{display:flex;gap:26px;margin-left:12px;}
.nav-links a{font-size:13px;color:var(--ink-dim);transition:color .2s var(--ease);}
.nav-links a:hover{color:var(--ink);}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:12px;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:14px;font-weight:600;letter-spacing:.01em;
  padding:11px 20px;border-radius:999px;cursor:pointer;border:0.5px solid transparent;
  transition:transform .12s var(--ease),background .2s var(--ease),border-color .2s var(--ease),opacity .2s var(--ease);}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--ink);color:#000;}
.btn-primary:hover{opacity:.9;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2);}
.btn-ghost:hover{background:rgba(255,255,255,0.05);border-color:#4a4a4a;}
.btn-sm{padding:8px 15px;font-size:13px;}
.btn-lg{padding:14px 26px;font-size:15px;}
.btn-block{width:100%;}

/* ---- hero -------------------------------------------------------------- */
.hero{padding:96px 0 64px;text-align:center;}
.hero .eyebrow{margin-bottom:22px;}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.03;letter-spacing:-0.02em;
  font-weight:700;margin:0 auto 22px;max-width:16ch;}
.hero h1 .thin{color:var(--muted);font-weight:400;}
.hero .sub{font-size:clamp(16px,2.2vw,20px);color:var(--ink-dim);max-width:60ch;
  margin:0 auto 34px;line-height:1.55;}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:20px;}
.hero-note{font-size:12.5px;color:var(--faint);}
.hero-note b{color:var(--muted);font-weight:600;}

/* ---- product preview strip -------------------------------------------- */
.preview{margin:56px auto 0;max-width:960px;padding:0 24px;}
.preview-frame{border:0.5px solid var(--line-2);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,#101010,#0a0a0a);box-shadow:var(--shadow);
  overflow:hidden;}
.preview-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;border-bottom:0.5px solid var(--line);}
.preview-bar .dot{width:11px;height:11px;border-radius:50%;background:#2a2a2a;}
.preview-bar .tag{margin-left:10px;font-family:var(--font-mono);font-size:11px;color:var(--faint);letter-spacing:.04em;}
.preview-tabs{display:flex;gap:8px;flex-wrap:wrap;padding:16px;border-bottom:0.5px solid var(--line);}
.preview-tabs span{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim);
  border:0.5px solid var(--line-2);border-radius:999px;padding:7px 14px;}
.preview-tabs span:first-child{background:#1e1e1e;color:var(--ink);}
.preview-body{padding:30px 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.preview-body .cell{height:64px;border-radius:10px;border:0.5px solid var(--line);
  background:linear-gradient(180deg,#161616,#101010);}
.preview-body .cell:nth-child(3n){background:linear-gradient(180deg,#1c1c1c,#131313);}

/* ---- section scaffolding ---------------------------------------------- */
section{position:relative;}
.section{padding:88px 0;}
.section-head{text-align:center;max-width:64ch;margin:0 auto 52px;}
.section-head h2{font-size:clamp(26px,4vw,40px);letter-spacing:-0.02em;line-height:1.1;margin:14px 0 14px;}
.section-head p{font-size:16px;color:var(--ink-dim);margin:0;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);border:0;margin:0;}

/* ---- features grid ----------------------------------------------------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.feature{border:0.5px solid var(--line);border-radius:var(--radius-md);padding:24px;
  background:linear-gradient(180deg,var(--panel),var(--bg-2));
  transition:border-color .25s var(--ease),transform .25s var(--ease);}
.feature:hover{border-color:var(--line-2);transform:translateY(-2px);}
.feature .ic{width:38px;height:38px;border-radius:10px;border:0.5px solid var(--line-2);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:17px;color:var(--ink);
  background:#151515;margin-bottom:16px;}
.feature h3{font-size:16px;margin:0 0 8px;letter-spacing:-0.01em;}
.feature p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.55;}

/* ---- pricing ----------------------------------------------------------- */
.billtoggle{display:inline-flex;align-items:center;gap:0;margin:6px auto 46px;
  border:0.5px solid var(--line-2);border-radius:999px;padding:4px;background:var(--panel);}
.billtoggle button{font-family:inherit;font-size:13px;font-weight:600;color:var(--muted);
  background:transparent;border:0;border-radius:999px;padding:9px 20px;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);}
.billtoggle button.on{background:var(--ink);color:#000;}
.billtoggle .save{font-size:11px;color:var(--muted);margin-left:2px;font-weight:600;}

.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch;}
.plan{position:relative;border:0.5px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;background:linear-gradient(180deg,var(--panel),var(--bg-2));
  display:flex;flex-direction:column;}
.plan.featured{border-color:#4a4a4a;background:linear-gradient(180deg,#181818,#0e0e0e);
  box-shadow:var(--shadow);}
.plan .badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;color:#000;
  background:var(--ink);padding:5px 13px;border-radius:999px;white-space:nowrap;}
.plan .pname{font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim);font-weight:600;}
.plan .ptag{font-size:13px;color:var(--muted);margin:8px 0 20px;min-height:36px;}
.plan .price{display:flex;align-items:baseline;gap:6px;margin-bottom:4px;}
.plan .price .amt{font-size:44px;font-weight:700;letter-spacing:-0.03em;font-variant-numeric:tabular-nums;}
.plan .price .per{font-size:13px;color:var(--muted);}
.plan .pricenote{font-size:12px;color:var(--faint);min-height:18px;margin-bottom:22px;}
.plan .btn{margin-bottom:24px;}
.plan ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.plan li{font-size:13.5px;color:var(--ink-dim);display:flex;gap:10px;align-items:flex-start;line-height:1.45;}
.plan li .ck{color:var(--ink);flex:0 0 auto;margin-top:1px;font-size:12px;}
.plan li.off{color:var(--faint);}
.plan li.off .ck{color:var(--faint);}

/* ---- faq --------------------------------------------------------------- */
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq details{border:0.5px solid var(--line);border-radius:var(--radius-sm);
  background:var(--panel);overflow:hidden;transition:border-color .2s var(--ease);}
.faq details[open]{border-color:var(--line-2);}
.faq summary{list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .plus{color:var(--muted);font-size:18px;transition:transform .2s var(--ease);flex:0 0 auto;}
.faq details[open] summary .plus{transform:rotate(45deg);}
.faq .ans{padding:0 20px 18px;font-size:14px;color:var(--muted);line-height:1.6;}

/* ---- final cta --------------------------------------------------------- */
.finalcta{text-align:center;padding:96px 0;}
.finalcta h2{font-size:clamp(28px,4.5vw,46px);letter-spacing:-0.02em;margin:0 0 16px;}
.finalcta p{font-size:17px;color:var(--ink-dim);margin:0 auto 30px;max-width:52ch;}

/* ---- footer ------------------------------------------------------------ */
footer{border-top:0.5px solid var(--line);padding:56px 0 40px;}
.foot-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.foot-brand .brand{margin-bottom:14px;}
.foot-brand p{font-size:13px;color:var(--muted);max-width:34ch;margin:0;}
.foot-col h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin:0 0 14px;font-weight:600;}
.foot-col a{display:block;font-size:13.5px;color:var(--ink-dim);margin-bottom:10px;transition:color .2s var(--ease);}
.foot-col a:hover{color:var(--ink);}
.foot-bottom{max-width:var(--maxw);margin:40px auto 0;padding:22px 24px 0;border-top:0.5px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;}
.foot-bottom small{font-size:12px;color:var(--faint);}
.disclaimer{max-width:var(--maxw);margin:22px auto 0;padding:0 24px;
  font-size:11.5px;color:var(--faint);line-height:1.6;}

/* ---- responsive -------------------------------------------------------- */
@media (max-width:900px){
  .features,.pricing{grid-template-columns:1fr;}
  .plan.featured{order:-1;}
  .preview-body{grid-template-columns:repeat(2,1fr);}
  .foot-in{grid-template-columns:1fr 1fr;}
  .nav-links{display:none;}
}
@media (max-width:560px){
  .hero{padding:64px 0 40px;}
  .section{padding:64px 0;}
  .foot-in{grid-template-columns:1fr;}
}

/* respect reduced motion */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;animation:none!important;}
}