/* Vraify design tokens */
:root {
  --bg: #FFFFFF;
  --bg-elev: #FFFFFF;
  --bg-soft: #F4F7FB;
  --bg-deep: #061427;

  --ink: #061427;
  --ink-2: #1F2B3D;
  --ink-3: #4B5666;
  --ink-4: #7A8494;
  --ink-5: #B8C0CC;
  --line: #E6ECF3;
  --line-2: #EFF3F8;
  --line-strong: #061427;

  /* Sky palette */
  --sky-1: #E0F2FE; /* lightest */
  --sky-2: #BAE0FB;
  --sky-3: #7DC4F2;
  --sky-4: #38A3DC;
  --sky-5: #0E7FB8; /* deepest */

  --accent: #0369A1;     /* deep sky */
  --accent-ink: #FFFFFF;
  --accent-soft: #E0F2FE;
  --accent-deep: #075985;

  --green: #0F8B5C;
  --amber: #B7791F;

  /* Editorial display + modern body — distinctly unlike Inter */
  --font-display: "Instrument Serif", "Cormorant Garamond", "Times New Roman", serif;
  --font-body: "Geist", "Söhne", system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 4px;
  --radius-lg: 8px;
  --maxw: 1280px;
  --gutter: 32px;
}

[data-theme="dark"] {
  --bg: #061427;
  --bg-elev: #0B1B30;
  --bg-soft: #0F2236;
  --bg-deep: #FFFFFF;

  --ink: #F2F6FB;
  --ink-2: #D6DDE6;
  --ink-3: #9CA7B6;
  --ink-4: #6D7888;
  --ink-5: #3F4858;
  --line: #1A2B41;
  --line-2: #142337;
  --line-strong: #E6ECF3;

  --sky-1: #0F2238;
  --sky-2: #15314A;
  --accent: #7DC4F2;
  --accent-ink: #061427;
  --accent-soft: #15314A;
  --accent-deep: #BAE0FB;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
  position: relative;
}

/* Sky gradient — top ~20% of the page, fixed so it parallaxes naturally as you scroll */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 110vh;
  background:
    radial-gradient(ellipse 90% 70% at 50% -10%, var(--sky-2) 0%, var(--sky-1) 35%, transparent 70%),
    linear-gradient(180deg, var(--sky-1) 0%, color-mix(in srgb, var(--sky-1) 50%, var(--bg)) 40%, var(--bg) 80%);
  z-index: -1;
  pointer-events: none;
}
[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 90% 70% at 50% -10%, var(--sky-2) 0%, var(--sky-1) 35%, transparent 70%),
    linear-gradient(180deg, var(--sky-1) 0%, var(--bg) 70%);
}

::selection { background: var(--ink); color: var(--bg); }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

/* ---- type ---- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 0.98;
}
.display em, .display .it {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-deep);
}
.mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 400; letter-spacing: -0.025em; line-height: 1.02; }
h1 em, h2 em, h3 em { font-style: italic; color: var(--accent-deep); font-weight: 400; }
p { margin: 0; }

/* ---- scroll reveal ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(20px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0ms); }
.reveal-stagger.is-in > * { opacity: 1; transform: translateY(0); }
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--sky-3), var(--accent), var(--accent-deep)); transform-origin: 0 0; transform: scaleX(var(--p, 0)); z-index: 100; transition: transform .1s linear; }

/* ---- word-by-word fade ---- */
.word-reveal .w { display: inline-block; opacity: 0; transform: translateY(0.4em); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0ms); }
.word-reveal.is-in .w { opacity: 1; transform: translateY(0); }

/* ---- layout primitives ---- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section {
  padding: 120px 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.section--tight { padding: 80px 0; }
.section--first { border-top: none; }

.section-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 64px;
  margin-bottom: 64px;
  align-items: start;
}
.section-head .eyebrow { padding-top: 6px; }
.section-head h2 {
  font-size: 56px;
  max-width: 880px;
  letter-spacing: -0.035em;
}
.section-head p {
  color: var(--ink-3);
  max-width: 620px;
  margin-top: 18px;
  font-size: 17px;
}

@media (max-width: 880px) {
  .section { padding: 80px 0; }
  .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 40px; }
  .section-head h2 { font-size: 32px; }
}

/* ---- nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  gap: 36px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 520;
  font-size: 17px;
  letter-spacing: -0.025em;
}
.brand-mark {
  width: 22px; height: 22px;
  position: relative;
  display: inline-block;
}
.brand-mark svg { display: block; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-2);
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color .15s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -22px;
  height: 1px;
  background: var(--ink);
}
.nav-spacer { flex: 1; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--ink-2);
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  transition: background .15s, color .15s, border-color .15s;
}
.nav-cta:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.nav-cta--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.nav-cta--primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

@media (max-width: 1080px) {
  .nav-links { display: none; }
}

/* dropdown */
.nav-item { position: relative; }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: -20px;
  min-width: 540px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-top: 12px;
  box-shadow: 0 24px 60px -20px rgba(10,14,26,.12);
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}
.nav-item:hover .nav-dropdown { display: grid; }
.nav-dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--ink-2);
}
.nav-dropdown a:hover { background: var(--bg-soft); color: var(--ink); }
.nav-dropdown a .nd-desc {
  display: block;
  font-size: 12px;
  color: var(--ink-4);
  margin-top: 2px;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn--primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--ink); }
.btn--accent {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn .arr { transition: transform .15s; }
.btn:hover .arr { transform: translateX(3px); }

/* ---- arrows / links ---- */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .15s, border-color .15s;
}
.arrow-link:hover { color: var(--accent); border-color: var(--accent); }

/* ---- cards ---- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -24px rgba(10,14,26,.18);
}
.card--accent:hover { border-color: var(--accent); }

/* ---- footer ---- */
.footer {
  border-top: 1px solid var(--line);
  padding: 80px 0 40px;
  background: var(--bg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  font-weight: 500;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 5px 0;
  transition: color .15s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--ink-4);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.footer-tag { font-family: var(--font-display); font-size: 13px; color: var(--ink-3); letter-spacing: -0.01em; max-width: 280px; line-height: 1.5; margin-top: 16px; text-transform: none; font-weight: 400; }

@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ---- utility ---- */
.measure-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-4);
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tick::before {
  content: "";
  width: 4px; height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--line);
}
.badge--accent { background: var(--accent-soft); color: var(--accent-deep); border-color: transparent; }
.badge--green { background: color-mix(in srgb, var(--green) 12%, var(--bg)); color: var(--green); border-color: transparent; }

/* hairline wrappers */
.hairline-grid {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-elev);
}
.hairline-grid > * {
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.hairline-grid > *:last-child { border-right: 1px solid var(--line); }

/* tweaks panel placement override is in tweaks-panel.jsx */

/* ============================================================
   MOBILE RESPONSIVE — overrides inline-style grids
   ============================================================ */

@media (max-width: 1080px) {
  :root { --gutter: 28px; }
}

@media (max-width: 880px) {
  :root { --gutter: 20px; }

  /* generic: any inline 2/3/4-col grid stacks */
  main [style*="grid-template-columns: 1.1fr 1fr"],
  main [style*="grid-template-columns:1.1fr 1fr"],
  main [style*="grid-template-columns: 1fr 1fr 1fr"],
  main [style*="grid-template-columns:1fr 1fr 1fr"],
  main [style*="grid-template-columns: 1fr 1fr"],
  main [style*="grid-template-columns:1fr 1fr"],
  main [style*="grid-template-columns: repeat(4"],
  main [style*="grid-template-columns:repeat(4"],
  main [style*="grid-template-columns: repeat(3"],
  main [style*="grid-template-columns:repeat(3"],
  main [style*="grid-template-columns: repeat(2"],
  main [style*="grid-template-columns:repeat(2"] {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  /* hero display headline */
  main .display {
    font-size: clamp(44px, 11vw, 72px) !important;
    line-height: 0.96 !important;
    letter-spacing: -0.03em !important;
  }

  /* section + section-head */
  .section { padding: 64px 0 !important; }
  .section--first { padding-top: 56px !important; padding-bottom: 72px !important; }
  .section-head h2 { font-size: 30px !important; line-height: 1.05; }
  .section-head p { font-size: 15px; }

  /* hero right-rail card padding */
  main .container > div > div[style*="border-radius: 12px"] {
    padding: 16px !important;
  }

  /* WhyVraify: cells lose right border, get bottom border + reset padding */
  main [style*="border-top: 1px solid var(--line-strong)"] > div {
    border-right: none !important;
    border-bottom: 1px solid var(--line) !important;
    padding: 24px 0 !important;
    padding-left: 0 !important;
  }
  main [style*="border-top: 1px solid var(--line-strong)"] > div:last-child {
    border-bottom: none !important;
  }

  /* hairline grids stack */
  .hairline-grid {
    grid-template-columns: 1fr !important;
  }
  .hairline-grid > * {
    border-right: none !important;
  }

  /* footer */
  .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 28px !important; }
  .footer { padding: 56px 0 28px !important; }

  /* nav: trim height + spacing; mobile menu via summary */
  .nav-inner { gap: 16px; }
  .nav-cta { padding: 8px 12px !important; font-size: 12.5px; }

  /* buttons full-ish width on tiny screens */
  .btn { padding: 12px 18px; font-size: 14px; }

  /* page header */
  .page-header { padding: 80px 0 48px !important; }
  .page-header h1 { font-size: clamp(40px, 10vw, 64px) !important; }

  /* CTA section */
  main section [style*="display: grid"][style*="gap: 64px"] {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  /* tighten any large inline gaps */
  main [style*="gap: 80px"],
  main [style*="gap:80px"] { gap: 40px !important; }
  main [style*="gap: 64px"],
  main [style*="gap:64px"] { gap: 36px !important; }

  /* prevent SVG hero diagrams from overflowing */
  main svg { max-width: 100%; height: auto; }

  /* Tweaks panel sits inside narrower viewport */
  body { overflow-x: hidden; }
}

@media (max-width: 520px) {
  :root { --gutter: 18px; }
  main .display { font-size: clamp(38px, 12vw, 56px) !important; }
  .section-head h2 { font-size: 26px !important; }
  .footer-grid { grid-template-columns: 1fr !important; }
  .btn { width: auto; }
  /* CTA buttons stack */
  main [style*="display: flex"][style*="gap: 10px"] {
    flex-wrap: wrap;
  }
  /* eyebrows + monos shrink slightly */
  .eyebrow { font-size: 10.5px; }
}