/* NotionAce — design system */
:root {
  --ink: #0A0B0F;
  --ink-2: #14161C;
  --ink-3: #1E2028;
  --line: rgba(10, 11, 15, 0.08);
  --line-dark: rgba(245, 243, 238, 0.08);
  --paper: #FFFFFF;
  --paper-2: #F3F4F6;
  --paper-3: #E7E9ED;
  --text: #0A0B0F;
  --text-mute: #4A4C54;
  --text-faint: #8A8C94;
  --invert: #F5F3EE;
  --invert-mute: rgba(245, 243, 238, 0.62);
  --invert-faint: rgba(245, 243, 238, 0.38);

  --brand-1: #F97316; /* orange */
  --brand-2: #B84FC9; /* magenta */
  --brand-3: #6B2FD9; /* violet */
  --brand-cool: #4A9EFF; /* cloud / data */

  --sans: 'Inter', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
  --display: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --maxw: 1320px;
  --pad-x: clamp(20px, 4vw, 56px);
  --radius: 14px;
  --radius-lg: 22px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--text);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }

/* Typography */
h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; margin: 0; line-height: 1.02; }
h1 { font-size: clamp(44px, 7.2vw, 112px); letter-spacing: -0.035em; font-weight: 500; }
h2 { font-size: clamp(32px, 4.4vw, 64px); letter-spacing: -0.028em; }
h3 { font-size: clamp(22px, 2.2vw, 32px); letter-spacing: -0.02em; }
h4 { font-size: 18px; letter-spacing: -0.01em; }
p { margin: 0; }
.lede { font-size: clamp(17px, 1.35vw, 20px); color: var(--text-mute); line-height: 1.5; max-width: 62ch; }
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500; }
.eyebrow { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-mute); font-weight: 500; display: inline-flex; align-items: center; gap: 8px; }
.eyebrow::before { content: ''; width: 6px; height: 6px; background: var(--brand-1); border-radius: 50%; display: inline-block; }
.dark .eyebrow { color: var(--invert-mute); }
.dark .eyebrow::before { background: var(--brand-1); }

/* Sections */
section { padding: clamp(72px, 10vw, 140px) 0; }
.dark { background: var(--ink); color: var(--invert); }
.dark h1, .dark h2, .dark h3, .dark h4 { color: var(--invert); }
.dark .lede { color: var(--invert-mute); }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.section-head h2 { max-width: 14ch; }
@media (max-width: 820px){ .section-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 36px; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 999px; font-family: var(--sans); font-size: 14px; font-weight: 500; letter-spacing: -0.005em; transition: all 160ms ease; border: 1px solid transparent; cursor: pointer; white-space: nowrap; }
.btn-primary { background: var(--ink); color: var(--invert); }
.btn-primary:hover { background: #2A2D36; transform: translateY(-1px); }
.dark .btn-primary, .nav.on-dark .btn-primary { background: var(--invert); color: var(--ink); }
.dark .btn-primary:hover, .nav.on-dark .btn-primary:hover { background: #fff; }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.dark .btn-ghost { border-color: var(--line-dark); color: var(--invert); }
.dark .btn-ghost:hover { background: rgba(245,243,238,0.06); }
.btn-ghost:hover { background: rgba(10,11,15,0.04); }
.btn .arrow { transition: transform 220ms ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease;
}
.nav.scrolled { background: rgba(255, 255, 255, 0.88); border-bottom-color: var(--line); }
.nav.on-dark { background: rgba(10, 11, 15, 0.55); border-bottom-color: var(--line-dark); }
.nav.on-dark.scrolled { background: rgba(10, 11, 15, 0.78); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 0; }
.nav-logo img { height: 36px; width: auto; }
.nav-logo .dark-logo { display: block; }
.nav-logo .light-logo { display: none; }
.nav.on-dark .nav-logo .dark-logo { display: none; }
.nav.on-dark .nav-logo .light-logo { display: block; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a { padding: 10px 14px; font-size: 14px; color: var(--text); border-radius: 8px; transition: all 140ms ease; position: relative; }
.nav.on-dark .nav-links a { color: var(--invert); }
.nav-links a:not(.btn-primary):hover { background: rgba(10,11,15,0.05); }
.nav.on-dark .nav-links a:not(.btn-primary):hover { background: rgba(245,243,238,0.08); }
.nav-links a.active { font-weight: 500; }
.nav-links a.btn-primary { color: var(--invert); }
.nav.on-dark .nav-links a.btn-primary { color: var(--ink); }
.nav-cta { margin-left: 12px; }

/* Mega menu */
.nav-has-mega { position: relative; display: flex; align-items: center; }
.nav-has-mega > a { display: inline-flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-has-mega .chev { font-size: 9px; opacity: 0.55; transition: transform 180ms; }
.nav-has-mega:hover .chev { transform: translateY(1px); opacity: 0.9; }
.mega { position: absolute; left: 0; right: 0; top: 68px; background: rgba(255,255,255,0.98); backdrop-filter: blur(24px) saturate(1.3); -webkit-backdrop-filter: blur(24px) saturate(1.3); border-bottom: 1px solid var(--line); opacity: 0; pointer-events: none; transform: translateY(-8px); transition: opacity 180ms, transform 180ms; }
.nav.on-dark .mega { background: rgba(10,11,15,0.96); border-bottom-color: var(--line-dark); color: var(--invert); }
.mega.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.mega-inner { max-width: var(--maxw); margin: 0 auto; padding: 32px var(--pad-x) 40px; }
.mega-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.mega-head .mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-mute); }
.nav.on-dark .mega-head .mono { color: var(--invert-mute); }
.mega-head .mega-all { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text); }
.nav.on-dark .mega-head .mega-all { color: var(--invert); }
.mega-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
@media (max-width: 900px){ .mega-grid { grid-template-columns: repeat(2, 1fr); } }
.mega-item { display: grid; grid-template-columns: 32px 1fr; grid-template-rows: auto auto; column-gap: 12px; padding: 14px 16px; border-radius: 12px; transition: background 160ms; }
.mega-item:hover { background: rgba(10,11,15,0.05); }
.nav.on-dark .mega-item:hover { background: rgba(245,243,238,0.06); }
.mega-item .mk { grid-row: 1 / 3; font-family: var(--mono); font-size: 11px; color: var(--text-faint); letter-spacing: 0.12em; padding-top: 4px; }
.nav.on-dark .mega-item .mk { color: var(--invert-faint); }
.mega-item .mt { font-family: var(--display); font-size: 16px; font-weight: 500; letter-spacing: -0.01em; color: var(--text); }
.nav.on-dark .mega-item .mt { color: var(--invert); }
.mega-item .md { font-size: 12.5px; color: var(--text-mute); margin-top: 2px; }
.nav.on-dark .mega-item .md { color: var(--invert-mute); }
@media (max-width: 880px){ .nav-links { display: none; } }

/* Footer */
footer.site { background: var(--ink); color: var(--invert); padding: 96px 0 40px; }
footer.site .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 72px; }
footer.site h5 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--invert-faint); margin: 0 0 18px; font-weight: 500; }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li { margin-bottom: 10px; }
footer.site a { color: var(--invert-mute); font-size: 14px; }
footer.site a:hover { color: var(--invert); }
footer.site .foot-logo img { height: 32px; margin-bottom: 20px; }
footer.site .foot-tag { color: var(--invert-mute); max-width: 34ch; font-size: 14px; line-height: 1.55; }
footer.site .foot-bottom { display: flex; justify-content: space-between; padding-top: 32px; border-top: 1px solid var(--line-dark); font-size: 12px; color: var(--invert-faint); }
@media (max-width: 820px){ footer.site .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }

/* Hero title treatment */
.hero-title { font-size: clamp(56px, 11vw, 168px); line-height: 0.92; letter-spacing: -0.045em; font-weight: 500; }
.hero-title .grad { background: linear-gradient(96deg, var(--brand-1) 0%, var(--brand-2) 48%, var(--brand-3) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; font-style: italic; font-weight: 400; }

/* Grain overlay */
.grain { position: relative; }
.grain::after {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0.06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.9'/></svg>");
}

/* Marquee / logos */
.ticker { overflow: hidden; padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ticker-row { display: flex; gap: 64px; white-space: nowrap; animation: ticker 40s linear infinite; }
@keyframes ticker { from { transform: translateX(0);} to { transform: translateX(-50%);} }
.ticker-item { display: inline-flex; align-items: center; gap: 12px; font-family: var(--display); font-size: 22px; color: var(--text-mute); font-weight: 500; letter-spacing: -0.02em; }
.ticker-item .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand-1); }

/* Cards */
.card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; transition: transform 200ms ease, box-shadow 200ms ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 24px 48px -24px rgba(10,11,15,0.2); }
.dark .card { background: var(--ink-2); border-color: var(--line-dark); }
.dark .card:hover { box-shadow: 0 24px 48px -24px rgba(0,0,0,0.6); }

/* Utility */
.divider { height: 1px; background: var(--line); }
.dark .divider { background: var(--line-dark); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: rgba(10,11,15,0.04); font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-mute); border: 1px solid var(--line); }
.dark .pill { background: rgba(245,243,238,0.04); border-color: var(--line-dark); color: var(--invert-mute); }

/* Numbered grid */
.num { font-family: var(--mono); font-size: 11px; color: var(--text-faint); letter-spacing: 0.14em; }
.dark .num { color: var(--invert-faint); }