/* ============================================================
   AYiN Advisors — Shared Design System
   Premium institutional advisory · navy + gold · eye motif
   ============================================================ */

:root {
  /* Palette */
  --navy-950: #061325;
  --navy-900: #08182c;
  --navy-850: #0a1f37;
  --navy-800: #0d2742;
  --navy-700: #143150;
  --navy-600: #1d4067;

  --gold: #c6a15c;
  --gold-bright: #ddbd7e;
  --gold-deep: #a8854a;
  --gold-glow: rgba(198, 161, 92, 0.45);

  --paper: #f7f3ea;
  --paper-2: #efe9da;
  --cream: #faf7f0;

  --ink: #0f1a26;
  --ink-soft: #2a3a49;
  --slate: #5d6c7b;
  --slate-light: #8a98a6;
  --line: rgba(15, 26, 38, 0.12);
  --line-gold: rgba(198, 161, 92, 0.30);
  --line-on-navy: rgba(255, 255, 255, 0.10);

  /* Type */
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Hanken Grotesk", system-ui, -apple-system, sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --maxw: 1280px;
  --gutter: clamp(20px, 5vw, 80px);
  --nav-h: 84px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.7;
  overflow-x: hidden;
}

::selection { background: var(--gold); color: var(--navy-950); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Typography ---------- */
.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.85em;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
  display: inline-block;
}
.eyebrow.center::before { display: none; }
.on-navy .eyebrow, .eyebrow.on-navy { color: var(--gold-bright); }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.04; letter-spacing: -0.01em; }

.display {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(3rem, 7.2vw, 6.6rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
}
.h2 {
  font-size: clamp(2.1rem, 4.6vw, 3.9rem);
  line-height: 1.02;
}
.h3 { font-size: clamp(1.5rem, 2.4vw, 2.1rem); }
.lead {
  font-size: clamp(1.18rem, 1.7vw, 1.42rem);
  line-height: 1.55;
  color: var(--ink-soft);
  font-weight: 400;
}
.italic-accent { font-style: italic; color: var(--gold-deep); }
.on-navy .italic-accent { color: var(--gold-bright); }

/* ---------- Layout helpers ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(90px, 12vw, 168px); position: relative; }
.section-sm { padding-block: clamp(64px, 8vw, 110px); }

.navy { background: var(--navy-900); color: var(--paper); }
.navy h1, .navy h2, .navy h3 { color: var(--cream); }
.navy .lead { color: rgba(247, 243, 234, 0.72); }
.paper { background: var(--paper); }

.muted { color: var(--slate); }
.navy .muted { color: rgba(247, 243, 234, 0.6); }

/* section index number */
.sec-index {
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1.15em 1.9em;
  border: 1px solid var(--gold);
  background: var(--gold);
  color: var(--navy-950);
  border-radius: 2px;
  overflow: hidden;
  white-space: nowrap;
  transition: color 0.5s var(--ease), border-color 0.5s var(--ease);
  will-change: transform;
}
.btn .btn-label, .btn .btn-arrow { position: relative; z-index: 2; }
.btn .btn-arrow { transition: transform 0.45s var(--ease); }
.btn::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--navy-900);
  transform: translateY(101%);
  transition: transform 0.5s var(--ease);
  z-index: 1;
}
.btn:hover { color: var(--gold-bright); border-color: var(--navy-900); }
.btn:hover::before { transform: translateY(0); }
.btn:hover .btn-arrow { transform: translateX(5px); }

.btn-ghost {
  background: transparent;
  color: var(--gold-deep);
  border: 1px solid var(--line-gold);
}
.btn-ghost::before { background: var(--gold); }
.btn-ghost:hover { color: var(--navy-950); border-color: var(--gold); }
.on-navy .btn-ghost, .btn-ghost.on-navy { color: var(--gold-bright); border-color: rgba(221,189,126,0.4); }
.on-navy .btn-ghost:hover, .btn-ghost.on-navy:hover { color: var(--navy-950); }

/* text link with animated underline */
.tlink {
  position: relative;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep);
  display: inline-flex;
  gap: 0.55em;
  align-items: center;
  padding-bottom: 3px;
}
.on-navy .tlink { color: var(--gold-bright); }
.tlink::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.tlink:hover::after { transform: scaleX(1); }
.tlink:hover .btn-arrow { transform: translateX(4px); }
.tlink .btn-arrow { transition: transform 0.4s var(--ease); }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background 0.5s var(--ease), box-shadow 0.5s var(--ease), height 0.4s var(--ease);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav.scrolled {
  height: 68px;
  background: rgba(8, 24, 44, 0.86);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line-on-navy);
}
.nav-links { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 40px); }
.nav-link {
  position: relative;
  font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em;
  color: rgba(247,243,234,0.78);
  transition: color 0.3s var(--ease);
  padding: 6px 0;
}
.nav-link:hover, .nav-link.active { color: var(--gold-bright); }
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 6px; }
.nav-cta .btn { padding: 0.85em 1.4em; }

.nav-toggle { display: none; background: none; border: 0; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 24px; height: 1.5px; background: var(--cream); display: block; transition: transform 0.4s var(--ease), opacity 0.3s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Mobile drawer ---------- */
.mobile-drawer {
  position: fixed; inset: 0; z-index: 99;
  background: var(--navy-950);
  display: flex; flex-direction: column; justify-content: center;
  gap: 6px; padding: 0 var(--gutter);
  transform: translateY(-100%);
  transition: transform 0.6s var(--ease);
}
.mobile-drawer.open { transform: translateY(0); }
.mobile-drawer a {
  font-family: var(--serif); font-size: 2.4rem; color: var(--cream);
  padding: 10px 0; border-bottom: 1px solid var(--line-on-navy);
  transition: color 0.3s, padding-left 0.4s var(--ease);
}
.mobile-drawer a:hover { color: var(--gold-bright); padding-left: 10px; }
.mobile-drawer a.md-cta { color: var(--gold-bright); border-bottom: 0; margin-top: 14px; font-style: italic; }

/* ---------- Logo / wordmark ---------- */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark { width: 38px; height: 38px; flex: none; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-ayin {
  font-family: var(--serif); font-weight: 600;
  font-size: 1.6rem; letter-spacing: 0.02em; color: var(--cream);
}
.logo-ayin .lc { font-style: italic; color: var(--gold-bright); }
.logo-adv {
  font-family: var(--sans); font-weight: 600;
  font-size: 0.56rem; letter-spacing: 0.42em; text-transform: uppercase;
  color: rgba(247,243,234,0.65); margin-top: 3px; padding-left: 2px;
}
.logo.dark .logo-ayin { color: var(--ink); }
.logo.dark .logo-adv { color: var(--slate); }
.logo.dark .logo-ayin .lc { color: var(--gold-deep); }

/* ---------- Footer ---------- */
.footer { background: var(--navy-950); color: var(--paper); padding-top: clamp(70px, 9vw, 120px); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 64px; border-bottom: 1px solid var(--line-on-navy); }
.footer h4 { font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--gold); margin-bottom: 22px; }
.footer-col a { display: block; color: rgba(247,243,234,0.7); padding: 7px 0; font-size: 0.95rem; transition: color 0.3s, transform 0.3s var(--ease); }
.footer-col a:hover { color: var(--gold-bright); transform: translateX(4px); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-block: 30px; font-size: 0.8rem; color: rgba(247,243,234,0.45); flex-wrap: wrap; gap: 14px; }
.footer-tag { max-width: 30ch; color: rgba(247,243,234,0.62); line-height: 1.6; font-size: 0.95rem; margin-top: 20px; }

/* ---------- Reveal animations (progressive enhancement) ----------
   Visible by default; only hidden once JS confirms it can reveal them. */
.reveal { opacity: 1; transform: none; transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
html.js .reveal { opacity: 0; transform: translateY(34px); }
html.js .reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }
.reveal[data-d="5"] { transition-delay: 0.40s; }

.line-reveal { position: relative; overflow: hidden; display: inline-block; }
.line-reveal > span { display: inline-block; transition: transform 1.1s var(--ease-out); }
html.js .line-reveal > span { transform: translateY(110%); }
html.js .line-reveal.in > span { transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: 0.001s !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .line-reveal > span { transform: none; }
}

/* ---------- Hairline rule ---------- */
.rule { height: 1px; background: var(--line); width: 100%; }
.rule-gold { height: 1px; background: var(--line-gold); }
.navy .rule { background: var(--line-on-navy); }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--line-gold); padding-block: 22px; background: var(--navy-950); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item { display: inline-flex; align-items: center; gap: 56px; font-family: var(--serif); font-style: italic; font-size: 1.7rem; color: rgba(247,243,234,0.55); white-space: nowrap; }
.marquee-item::after { content: "✦"; font-size: 0.7rem; color: var(--gold); font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Utility ---------- */
.grid { display: grid; }
.flex { display: flex; }
.center { text-align: center; }
.stack-gap { display: flex; flex-direction: column; gap: 28px; }
.measure { max-width: 56ch; }
.measure-sm { max-width: 44ch; }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .footer-top { grid-template-columns: 1fr; }
}