/* B&D Aerosol Technologies — site styles */

/* Brand typefaces, self-hosted (SIL Open Font License): Syne for display, Geist for text */
@font-face { font-family: 'Syne'; src: url('fonts/syne-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Syne'; src: url('fonts/syne-500.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'Syne'; src: url('fonts/syne-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: 'Geist'; src: url('fonts/geist-sans-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Geist'; src: url('fonts/geist-sans-500.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'Geist'; src: url('fonts/geist-sans-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }
:root {
  --bg: #ffffff;
  --bg-alt: #f2f5fb;
  --text: #0a1022;
  --text-2: #4a5168;
  --text-3: #7d859b;
  --line: #d8deea;
  --accent: #2443f5;
  --accent-hover: #1a33d1;
  --bright: #5b8cff;
  --ice: #dce6ff;
  --dark: #050a18;
  --dark-2: #0b1226;
  --dark-3: #121b35;
  --dark-text: #f3f6ff;
  --dark-text-2: #a3adc8;

  --font: "Geist", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: "Syne", var(--font);
  --max: 1024px;
  --wide: 1240px;
  --gutter: max(22px, 4vw);
  --radius: 28px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 17px; line-height: 1.5; letter-spacing: -0.011em;
  color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-wide { max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.center { text-align: center; }

/* ---------- Type ---------- */
h1, h2, h3, .display, .headline, .title, .subhead, .kicker, .stat, .readout, .lnav-title { font-family: var(--font-display); }
.display  { font-size: clamp(48px, 8vw, 104px); line-height: 1; font-weight: 700; letter-spacing: -0.035em; }
.headline { font-size: clamp(38px, 5.4vw, 68px); line-height: 1.02; font-weight: 700; letter-spacing: -0.03em; }
.title    { font-size: clamp(28px, 3.4vw, 40px); line-height: 1.08; font-weight: 700; letter-spacing: -0.025em; }
.subhead  { font-size: clamp(21px, 2.2vw, 28px); line-height: 1.2; font-weight: 700; letter-spacing: -0.015em; }
.intro    { font-size: clamp(19px, 1.7vw, 21px); line-height: 1.4; color: var(--text-2); font-weight: 400; letter-spacing: .011em; }
.kicker   { font-size: clamp(15px, 1.4vw, 18px); font-weight: 700; color: var(--accent); margin-bottom: 10px; letter-spacing: 0; }
.small    { font-size: 14px; color: var(--text-2); letter-spacing: -0.01em; }
.grad {
  background: linear-gradient(95deg, #2443f5 0%, #4f7bff 50%, #19b8e6 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.mute { color: var(--text-3); }

/* ---------- Links & buttons ---------- */
.links { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; margin-top: 24px; font-size: 19px; }
.more { color: var(--accent); }
.more::after { content: " ›"; }
.more:hover { text-decoration: underline; }
.btn {
  display: inline-block; background: var(--text); color: #fff;
  font-size: 17px; padding: 12px 24px; border-radius: 980px; transition: background .2s;
}
.btn:hover { background: var(--accent); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); }
.btn-light { background: #fff; color: var(--text); }
.btn-light:hover { background: #e8e8ed; }

/* ---------- Global nav ---------- */
.gnav {
  position: sticky; top: 0; z-index: 100; height: 48px;
  background: rgba(255,255,255,.78);
  backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.gnav .wrap-wide { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.gnav .logo { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.gnav .logo .lg { height: 17px; width: auto; display: block; }
.gnav .logo .lg-d { display: none; }
.gnav nav { display: flex; gap: 36px; font-size: 13px; color: rgba(0,0,0,.8); }
.gnav nav a:hover, .gnav nav a[aria-current] { color: #000; }
.gnav .nav-cta { font-size: 13px; background: var(--accent); color: #fff; font-weight: 500; padding: 5px 14px; border-radius: 980px; }
.gnav--dark { background: rgba(5,10,24,.72); border-bottom-color: rgba(255,255,255,.08); color: var(--dark-text); }
.gnav--dark nav { color: rgba(245,245,247,.8); }
.gnav--dark nav a:hover, .gnav--dark nav a[aria-current] { color: #fff; }
.gnav--dark .logo .lg-l { display: none; }
.gnav--dark .logo .lg-d { display: block; }
@media (max-width: 760px) { .gnav nav, .gnav .nav-cta { display: none; } }

/* Mobile menu: Apple-style full-screen panel */
.menu-btn { display: none; width: 44px; height: 44px; margin-right: -12px; position: relative; }
.menu-btn span { position: absolute; left: 13px; width: 18px; height: 1.5px; border-radius: 1px; background: currentColor; transition: transform .35s cubic-bezier(.4,0,.2,1), top .35s cubic-bezier(.4,0,.2,1); }
.menu-btn span:first-child { top: 18px; }
.menu-btn span:last-child { top: 25px; }
.menu-open .menu-btn span:first-child { top: 21.5px; transform: rotate(45deg); }
.menu-open .menu-btn span:last-child { top: 21.5px; transform: rotate(-45deg); }
.mmenu { position: fixed; inset: 48px 0 0; z-index: 99; background: rgba(255,255,255,.97); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  padding: 28px var(--gutter) 40px; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; overflow-y: auto; }
.mmenu a { display: block; font-family: var(--font-display); font-weight: 700; font-size: 30px; letter-spacing: -0.025em; padding: 10px 0; color: var(--text);
  opacity: 0; transform: translateY(-8px); transition: opacity .35s, transform .35s; }
.mmenu a.cta { color: var(--accent); }
.mmenu .sub { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.mmenu .sub a { font-family: var(--font); font-weight: 500; font-size: 15px; letter-spacing: -0.01em; color: var(--text-2); padding: 7px 0; }
.menu-open .mmenu { opacity: 1; visibility: visible; }
.menu-open .mmenu a { opacity: 1; transform: none; }
.menu-open .mmenu a:nth-child(2) { transition-delay: .03s; } .menu-open .mmenu a:nth-child(3) { transition-delay: .06s; }
.menu-open .mmenu a:nth-child(4) { transition-delay: .09s; } .menu-open .mmenu a:nth-child(5) { transition-delay: .12s; }
.menu-open .mmenu a:nth-child(6) { transition-delay: .15s; }
.menu-open .gnav { background: rgba(255,255,255,.97); }
.menu-open .gnav--dark { background: rgba(255,255,255,.97); color: var(--text); }
.menu-open .gnav--dark .logo .lg-l { display: block; }
.menu-open .gnav--dark .logo .lg-d { display: none; }
body.menu-open { overflow: hidden; }
@media (max-width: 760px) { .menu-btn { display: block; } }
@media (min-width: 761px) { .mmenu { display: none; } }

/* Local nav (sticky sub-navigation) */
.lnav {
  position: sticky; top: 48px; z-index: 90; height: 52px;
  background: rgba(255,255,255,.78);
  backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.lnav .wrap-wide { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lnav .lnav-title { font-size: 21px; font-weight: 600; letter-spacing: .011em; white-space: nowrap; }
.lnav nav { display: flex; gap: 24px; font-size: 12px; color: var(--text-2); overflow-x: auto; scrollbar-width: none; }
.lnav nav::-webkit-scrollbar { display: none; }
.lnav nav a { white-space: nowrap; }
.lnav nav a:hover, .lnav nav a.active { color: var(--text); }
@media (max-width: 760px) { .lnav .lnav-title { font-size: 17px; } }

/* ---------- Sections ---------- */
.sec { padding: clamp(80px, 11vw, 140px) 0; scroll-margin-top: 100px; }
.sec-alt { background: var(--bg-alt); }
.sec-dark { background: var(--dark); color: var(--dark-text); }
.sec-dark .intro, .sec-dark .small { color: var(--dark-text-2); }
.sec-dark .kicker, .tile.dark .kicker { color: var(--bright); }
.sec-dark .grad, .tile.dark .grad { background-image: linear-gradient(95deg, #5b8cff 0%, #9cc0ff 60%, #e8f0ff 100%); }
.sec-dark .more { color: var(--bright); }
.sec-head { text-align: center; max-width: 820px; margin: 0 auto clamp(48px, 6vw, 80px); }
.sec-head .intro { margin-top: 20px; }

/* ---------- Tiles ---------- */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .g2, .g3 { grid-template-columns: 1fr; } }
.span2 { grid-column: span 2; }
@media (max-width: 680px) { .span2 { grid-column: auto; } }

.tile {
  border-radius: var(--radius); overflow: hidden; position: relative;
  background: var(--bg); padding: clamp(32px, 4vw, 48px) clamp(26px, 3.4vw, 44px);
  display: flex; flex-direction: column; min-height: 460px;
}
.sec-alt .tile { background: var(--bg); }
.tile.alt { background: var(--bg-alt); }
.tile.dark { background: var(--dark-2); color: var(--dark-text); }
.sec-dark .tile.dark { background: var(--dark-3); }
.tile.dark .small, .tile.dark p { color: var(--dark-text-2); }
.tile h3 { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; }
.tile p { color: var(--text-2); margin-top: 10px; font-size: 17px; }
.tile .art { flex: 1; display: grid; place-items: center; margin-top: 28px; }
.tile .art svg { width: 100%; max-width: 300px; height: auto; }
.tile .stat { font-size: clamp(48px, 6vw, 72px); font-weight: 700; letter-spacing: -0.035em; line-height: 1; margin-top: auto; padding-top: 32px; }

/* ---------- Reveal ---------- */
.rv { opacity: 0; transform: translateY(30px); transition: opacity 1s cubic-bezier(.2,.7,.2,1), transform 1s cubic-bezier(.2,.7,.2,1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ---------- Footer ---------- */
.footer { background: var(--bg-alt); color: var(--text-2); font-size: 12px; letter-spacing: -0.01em; padding: 20px 0 32px; }
.footer .note { padding: 16px 0; border-bottom: 1px solid var(--line); line-height: 1.4; }
.footer .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.footer .cols h4 { color: var(--text); font-weight: 600; font-size: 12px; margin-bottom: 8px; }
.footer .cols a { display: block; padding: 3px 0; }
.footer a:hover { text-decoration: underline; color: var(--text); }
.footer .base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 16px; }
.footer .base nav { display: flex; gap: 0; }
.footer .base nav a + a::before { content: "|"; color: var(--line); margin: 0 10px; }
@media (max-width: 680px) { .footer .cols { grid-template-columns: 1fr 1fr; } }

/* ---------- Legal pages ---------- */
.legal { max-width: 720px; margin: 0 auto; padding: 80px var(--gutter) 120px; }
.legal h1 { font-size: 40px; font-weight: 600; letter-spacing: -0.003em; margin-bottom: 40px; }
.legal h2 { font-size: 21px; font-weight: 600; margin: 36px 0 8px; }
.legal p { color: var(--text-2); margin-bottom: 12px; }
.legal a { color: var(--accent); }

/* ---------- 3D orbs ---------- */
.orb {
  border-radius: 50%; position: relative; flex: none;
  background: radial-gradient(circle at 32% 26%, #ffffff 0, #dfe8ff 6%, #7fa4ff 24%, #2443f5 55%, #142a9e 80%, #08124a 100%);
  box-shadow: inset -14px -20px 40px rgba(5,10,40,.45), inset 10px 10px 30px rgba(255,255,255,.25), 0 40px 70px -30px rgba(36,67,245,.55);
}
.orb.glass {
  background: radial-gradient(circle at 30% 24%, rgba(255,255,255,.95) 0, rgba(255,255,255,.35) 10%, rgba(220,230,255,.18) 35%, rgba(91,140,255,.25) 70%, rgba(36,67,245,.55) 100%);
  box-shadow: inset -10px -16px 36px rgba(20,40,160,.35), inset 6px 8px 18px rgba(255,255,255,.6), 0 30px 60px -30px rgba(36,67,245,.45);
  backdrop-filter: blur(2px);
}
.orb.dark { background: radial-gradient(circle at 32% 26%, #b9ccff 0, #5b8cff 14%, #1a2f9e 45%, #0a1442 80%, #050a20 100%); }
.orb-field { position: relative; width: 100%; height: 100%; }
.orb-field .orb { position: absolute; }
@media (prefers-reduced-motion: no-preference) {
  .float { animation: float 7s ease-in-out infinite; }
  .float.d2 { animation-delay: -2.3s; } .float.d3 { animation-delay: -4.6s; }
  @keyframes float { 50% { transform: translateY(-10px); } }
}

/* ---------- Footnotes ---------- */
.footnotes { font-size: 12px; color: var(--text-2); padding: 20px 0 8px; border-bottom: 1px solid var(--line); }
.footnotes ol { padding-left: 18px; }
.footnotes li { margin: 4px 0; }
.footnotes a { text-decoration: underline; }
sup.fn { font-size: .55em; vertical-align: super; line-height: 0; margin-left: 2px; }
sup.fn a { color: inherit; opacity: .7; }