/* ============================================================
   BITRAN Advisory — Design System
   Aesthetic: Four Seasons Hotel × Global Consulting
   ============================================================ */

:root {
  /* Palette */
  --ink:        #14181d;   /* near-black charcoal */
  --midnight:   #1b2733;   /* deep navy */
  --slate:      #47535f;   /* muted slate */
  --stone:      #8a8f95;   /* quiet grey text */
  --ivory:      #f6f3ee;   /* warm paper */
  --porcelain:  #fbfaf7;   /* lighter paper */
  --line:       #e3ddd2;   /* hairline */
  --gold:       #a9863f;   /* champagne gold */
  --gold-soft:  #c9ad6e;   /* softer gold */
  --gold-lite:  #d8c294;   /* light gold on dark */

  /* Type */
  --serif: "Cormorant Garamond", "Times New Roman", serif;
  --sans:  "Jost", "Helvetica Neue", Arial, sans-serif;

  /* Rhythm */
  --gutter: clamp(1.5rem, 5vw, 6rem);
  --maxw: 1240px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--porcelain);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 300;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-block;
}

.lede {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  line-height: 1.5;
  font-weight: 400;
  color: var(--slate);
}

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

.rule {
  width: 54px;
  height: 1px;
  background: var(--gold);
  border: 0;
  margin: 1.75rem 0;
}
.rule.center { margin-left: auto; margin-right: auto; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.6rem var(--gutter);
  transition: background 0.5s var(--ease), padding 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.nav.scrolled {
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(12px);
  padding-top: 1rem;
  padding-bottom: 1rem;
  box-shadow: 0 1px 0 var(--line);
}

.brand { display: flex; align-items: center; }
.brand .logo { height: 30px; width: auto; display: block; }
.brand .logo-white { display: none; }
/* On dark hero, show the white logo until scrolled */
.nav:not(.scrolled) .brand .logo-dark { display: none; }
.nav:not(.scrolled) .brand .logo-white { display: block; }
.nav:not(.scrolled) .nav-links a { color: rgba(246,243,238,0.85); }
.nav:not(.scrolled) .nav-toggle span { background: var(--porcelain); }

.nav-links {
  display: flex;
  gap: 2.6rem;
  align-items: center;
  list-style: none;
}
.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 400;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.4s var(--ease);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--gold); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; }
.nav-toggle span { width: 26px; height: 1.5px; background: var(--ink); transition: 0.3s var(--ease); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--sans);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 400;
  padding: 1rem 2.1rem;
  border: 1px solid var(--gold);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: all 0.45s var(--ease);
}
.btn:hover { background: var(--gold); color: #fff; }
.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover .arrow { transform: translateX(5px); }

.btn.light { color: var(--porcelain); border-color: rgba(212,187,132,0.6); }
.btn.light:hover { background: var(--gold); border-color: var(--gold); color: #fff; }

.link-more {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.link-more .arrow { transition: transform 0.4s var(--ease); }
.link-more:hover .arrow { transform: translateX(5px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--porcelain);
  background:
    linear-gradient(180deg, rgba(15,20,26,0.72) 0%, rgba(15,20,26,0.55) 45%, rgba(15,20,26,0.85) 100%),
    radial-gradient(120% 120% at 70% 20%, #24333f 0%, #161d25 55%, #0f141a 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(169,134,63,0.06) 1px, transparent 1px);
  background-size: 7.5rem 100%;
  opacity: 0.5;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; padding-top: 8rem; padding-bottom: 5rem; max-width: 900px; }
.hero h1 {
  color: #fff;
  font-size: clamp(2.9rem, 7vw, 6rem);
  font-weight: 500;
  margin: 1.6rem 0 1.8rem;
}
.hero h1 em { font-style: italic; color: var(--gold-lite); }
.hero p {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  max-width: 620px;
  color: rgba(246,243,238,0.82);
  font-weight: 300;
  margin-bottom: 2.6rem;
}
.hero .eyebrow { color: var(--gold-lite); }

.scroll-cue {
  position: absolute;
  bottom: 2.2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(246,243,238,0.6);
  display: flex; flex-direction: column; align-items: center; gap: 0.7rem;
}
.scroll-cue .bar { width: 1px; height: 46px; background: linear-gradient(var(--gold), transparent); animation: cue 2.4s var(--ease) infinite; }
@keyframes cue { 0%,100%{transform:scaleY(0.4);transform-origin:top;opacity:0.4}50%{transform:scaleY(1);opacity:1} }

/* ---------- Page header (interior pages) ---------- */
.pagehead {
  background: var(--midnight);
  color: var(--porcelain);
  padding: 12rem var(--gutter) 5.5rem;
  position: relative;
  overflow: hidden;
}
.pagehead::after {
  content:"";
  position:absolute; inset:0;
  background-image: linear-gradient(90deg, rgba(169,134,63,0.06) 1px, transparent 1px);
  background-size: 7.5rem 100%; opacity:0.5;
}
.pagehead .inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; }
.pagehead h1 { color:#fff; font-size: clamp(2.6rem, 5.5vw, 4.6rem); margin: 1.2rem 0 0; }
.pagehead .eyebrow { color: var(--gold-lite); }
.pagehead p { color: rgba(246,243,238,0.8); max-width: 620px; margin-top: 1.5rem; font-weight: 300; }

/* ---------- Sections ---------- */
section { position: relative; }
.section { padding: clamp(5rem, 10vw, 9rem) 0; }
.section.tight { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.bg-ivory { background: var(--ivory); }
.bg-ink { background: var(--midnight); color: var(--porcelain); }
.bg-ink h1, .bg-ink h2, .bg-ink h3 { color: #fff; }
.bg-ink .lede { color: rgba(246,243,238,0.8); }

.section-head { max-width: 720px; margin-bottom: 3.5rem; }
.section-head.center { margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3.2rem); margin-top: 1.1rem; }

/* Two column intro */
.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.split h2 { font-size: clamp(2rem, 3.6vw, 3rem); }
.split .body p + p { margin-top: 1.3rem; }
.split .body p { color: var(--slate); }

/* ---------- Stat row ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.bg-ink .stats { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.09); }
.stat { background: var(--porcelain); padding: 2.6rem 1.8rem; }
.bg-ink .stat { background: var(--midnight); }
.stat .num { font-family: var(--serif); font-size: clamp(2.4rem, 4vw, 3.4rem); color: var(--gold); line-height: 1; }
.stat .lbl { font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--stone); margin-top: 0.9rem; }
.bg-ink .stat .lbl { color: rgba(246,243,238,0.65); }

/* ---------- Services cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.svc {
  background: var(--porcelain);
  padding: clamp(2.2rem, 3vw, 3.2rem) clamp(1.8rem, 2.6vw, 2.6rem);
  transition: background 0.5s var(--ease), transform 0.5s var(--ease);
  position: relative;
}
.svc:hover { background: #fff; }
.svc .idx { font-family: var(--serif); font-size: 0.95rem; color: var(--gold); letter-spacing: 0.1em; }
.svc h3 { font-size: 1.55rem; margin: 1.1rem 0 0.9rem; }
.svc p { color: var(--slate); font-size: 0.98rem; }
.svc .tag { margin-top: 1.4rem; display:flex; flex-wrap:wrap; gap: 0.5rem; }
.svc .tag span { font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--stone); border:1px solid var(--line); padding: 0.3rem 0.7rem; border-radius: 100px; }
.svc-divider { border: 0; border-top: 1px solid var(--line); margin: 1.8rem 0 1.5rem; }
.svc .looks-like h4 { font-size: 1rem; letter-spacing: 0.02em; font-family: var(--sans); font-weight: 500; color: var(--ink); }
.svc .looks-like .feature-list { margin-top: 1rem; }
.svc .looks-like .feature-list li { padding: 0.9rem 0; grid-template-columns: auto 1fr; gap: 0.9rem; }
.svc .looks-like .feature-list .k { font-size: 0.9rem; }
.svc .looks-like .feature-list .v span { font-size: 0.92rem; }

/* ---------- Feature list ---------- */
.feature-list { list-style: none; display: grid; gap: 0; }
.feature-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.6rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.bg-ink .feature-list li { border-color: rgba(255,255,255,0.1); }
.feature-list li:first-child { border-top: 1px solid var(--line); }
.bg-ink .feature-list li:first-child { border-color: rgba(255,255,255,0.1); }
.feature-list .k { font-family: var(--serif); font-size: 1.3rem; color: var(--gold); font-style: italic; }
.feature-list .v strong { display:block; font-family: var(--serif); font-size: 1.35rem; font-weight:500; margin-bottom: 0.2rem; }
.feature-list .v em { display:block; margin-bottom: 0.5rem; }
.feature-list .v span { display:block; color: var(--slate); font-size: 0.98rem; }
.bg-ink .feature-list .v span { color: rgba(246,243,238,0.7); }

/* ---------- Case studies ---------- */
.case-list { border-top: 1px solid var(--line); }
.case {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding 0.5s var(--ease);
  cursor: default;
}
.case:hover { padding-left: 1.2rem; padding-right: 1.2rem; background: var(--ivory); }
.case .no { font-family: var(--serif); font-size: 1.15rem; color: var(--gold); }
.case .mid h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); transition: color 0.4s var(--ease); }
.case:hover .mid h3 { color: var(--gold); }
.case .mid p { color: var(--slate); margin-top: 0.6rem; max-width: 62ch; font-size: 0.99rem; }
.case .cat { font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--stone); white-space: nowrap; }
@media (max-width: 820px){
  .case { grid-template-columns: 3rem 1fr; }
  .case .cat { grid-column: 2; }
}

/* ---------- Clients marquee ---------- */
.clients { display:flex; flex-wrap:wrap; gap: clamp(2rem,5vw,4.5rem); align-items:center; justify-content:center; }
.clients span {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  color: var(--slate);
  letter-spacing: 0.04em;
  opacity: 0.75;
  transition: opacity 0.4s var(--ease), color 0.4s var(--ease);
}
.clients span:hover { opacity: 1; color: var(--gold); }
.bg-ink .clients span { color: rgba(246,243,238,0.7); }

/* ---------- Bio ---------- */
.bio-grid { display:grid; grid-template-columns: 0.68fr 1.32fr; gap: clamp(2.5rem,6vw,6rem); align-items:start; }
.bio-card {
  background: var(--midnight);
  color: var(--porcelain);
  padding: clamp(1.8rem, 2.6vw, 2.4rem);
  max-width: 280px;
  position: sticky; top: 6rem;
}
.bio-card .name { font-family: var(--serif); font-size: 1.5rem; color:#fff; line-height:1.05; white-space: nowrap; }
.bio-card .btn { font-size: 0.66rem; letter-spacing: 0.1em; padding: 0.9rem 1rem; white-space: nowrap; }
.bio-card .role { font-size: 0.76rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold-lite); margin-top: 0.7rem; }
.bio-card .meta { margin-top: 2rem; display:grid; gap: 1.1rem; }
.bio-card .meta div { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 1.1rem; }
.bio-card .meta .l { font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(246,243,238,0.55); }
.bio-card .meta .d { margin-top: 0.3rem; color: rgba(246,243,238,0.9); font-size: 0.96rem; }
.bio-body h3 { font-size: 1.7rem; margin: 2.4rem 0 1rem; }
.bio-body h3:first-child { margin-top: 0; }
.bio-body p { color: var(--slate); margin-bottom: 1.1rem; }

/* ---------- Contact ---------- */
.contact-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: rgba(255,255,255,0.1); border:1px solid rgba(255,255,255,0.1); margin-top: 3rem; }
.contact-cell { background: var(--midnight); padding: 2.4rem; }
.contact-cell .l { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold-lite); }
.contact-cell .d { font-family: var(--serif); font-size: 1.35rem; color:#fff; margin-top: 0.7rem; }
.contact-cell a.d:hover { color: var(--gold-lite); }

/* ---------- CTA band ---------- */
.cta-band { text-align:center; }
.cta-band h2 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); max-width: 16ch; margin: 1rem auto 2rem; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(246,243,238,0.7); padding: 4.5rem var(--gutter) 2.5rem; }
.footer-top { display:flex; justify-content: space-between; flex-wrap: wrap; gap: 2.5rem; max-width: var(--maxw); margin: 0 auto; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer .brand { color: #fff; }
.footer .brand .logo { height: 26px; }
.footer nav { display:flex; gap: 2rem; flex-wrap: wrap; }
.footer nav a { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; transition: color 0.3s var(--ease); }
.footer nav a:hover { color: var(--gold-lite); }
.footer-bottom { display:flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; max-width: var(--maxw); margin: 0 auto; padding-top: 2rem; font-size: 0.74rem; letter-spacing: 0.06em; color: rgba(246,243,238,0.5); }
.footer-bottom a:hover { color: var(--gold-lite); }

/* ---------- Hover lift (cards & rows) ---------- */
.svc, .case {
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.5s var(--ease), padding 0.5s var(--ease);
}
.svc:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 44px -24px rgba(20,24,29,0.28);
  z-index: 2;
}
.case:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px -22px rgba(20,24,29,0.22);
}

/* ---------- Clients qualifier note ---------- */
.clients-note {
  text-align: center;
  margin: 1.6rem auto 0;
  max-width: 58ch;
  font-size: 0.86rem;
  color: var(--stone);
  line-height: 1.6;
}
.bg-ink .clients-note { color: rgba(246,243,238,0.55); }

/* ---------- Image marquee (curated loop) ---------- */
.marquee-wrap {
  overflow: hidden;
  padding: 2.5rem 0;
  background: var(--ivory);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  width: max-content;
  animation: marquee 60s linear infinite;
}
.marquee-wrap:hover .marquee-track { animation-play-state: paused; }
.marquee-track figure {
  flex: 0 0 auto;
  width: clamp(170px, 17vw, 220px);
  height: 260px;
  overflow: hidden;
  border-radius: 2px;
  position: relative;
  box-shadow: 0 10px 30px rgba(20,24,29,0.08);
}
.marquee-track img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: var(--focal, 50% 50%);
  filter: grayscale(30%) sepia(6%) saturate(0.95) contrast(1.03) brightness(0.98);
  transition: filter 0.6s var(--ease), transform 0.6s var(--ease);
}
.marquee-track figure:hover img {
  filter: grayscale(0%) sepia(0%) saturate(1) contrast(1) brightness(1);
  transform: scale(1.04);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ---------- Engagement (case study) detail blocks ---------- */
.engagement { border-bottom: 1px solid var(--line); }
.engagement:last-child { border-bottom: 0; }
.engagement > summary { list-style: none; cursor: pointer; padding: clamp(3.5rem, 6vw, 5.5rem) 0 2rem; }
.engagement:first-child > summary { padding-top: 0; }
.engagement > summary::-webkit-details-marker { display: none; }
.engagement > summary::marker { content: ""; }
.engagement[open] > summary { padding-bottom: 1.6rem; }
.eng-toggle { display: inline-flex; align-items: center; gap: 0.6rem; margin-top: 1.5rem; font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); transition: color 0.3s var(--ease); }
.engagement > summary:hover .eng-toggle { color: var(--ink); }
.eng-toggle .chevron { display: inline-block; transition: transform 0.4s var(--ease); font-size: 0.9rem; line-height: 1; }
.engagement[open] .eng-toggle .chevron { transform: rotate(180deg); }
.eng-toggle-label.open { display: none; }
.engagement[open] .eng-toggle-label.closed { display: none; }
.engagement[open] .eng-toggle-label.open { display: inline; }
.eng-body { padding-bottom: clamp(3.5rem, 6vw, 5.5rem); }
.eng-head { max-width: 880px; }
.eng-num { font-family: var(--serif); font-size: 1rem; color: var(--gold); letter-spacing: 0.12em; }
.eng-location { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--stone); margin-top: 0.6rem; }
.eng-title { font-size: clamp(1.65rem, 3.2vw, 2.5rem); margin-top: 0.9rem; }
.eng-summary { font-family: var(--serif); font-size: clamp(1.1rem, 1.8vw, 1.3rem); color: var(--slate); margin-top: 1.1rem; max-width: 72ch; }
.eng-attribution { margin-top: 1.3rem; font-size: 0.85rem; letter-spacing: 0.04em; color: var(--gold); font-style: italic; }
.eng-sub { margin-top: 3rem; padding-top: 3rem; border-top: 1px dashed var(--line); }
.eng-sub:first-of-type { margin-top: 2.5rem; }
.eng-sub-title { font-size: clamp(1.3rem, 2vw, 1.6rem); margin-bottom: 1.5rem; }
.eng-sub-tag { font-size: 0.8rem; color: var(--slate); font-style: italic; margin: -1rem 0 1.5rem; display: block; }
.eng-block { margin-top: 1.4rem; }
.eng-block:first-of-type { margin-top: 0; }
.eng-label { font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.5rem; display: block; }
.eng-block p { color: var(--slate); font-size: 0.98rem; }
.eng-insight { margin-top: 1.8rem; padding: 1.6rem 1.9rem; background: var(--ivory); border-left: 2px solid var(--gold); }
.eng-insight p { font-family: var(--serif); font-style: italic; color: var(--ink); font-size: 1.08rem; }

/* ---------- PDF / secondary action ---------- */
.btn.ghost { border-color: var(--line); color: var(--slate); }
.btn.ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- Contact form ---------- */
.contact-form { margin-top: 3rem; display: grid; gap: 1.4rem; max-width: 640px; }
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.contact-form label { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold-lite); display: block; margin-bottom: 0.6rem; }
.contact-form input, .contact-form textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  font-family: var(--sans);
  font-size: 0.98rem;
  padding: 0.6rem 0;
  transition: border-color 0.3s var(--ease);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(246,243,238,0.35); }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--gold); }
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form button { justify-self: start; margin-top: 0.5rem; }
@media (max-width: 620px) { .contact-form .row { grid-template-columns: 1fr; } }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1;transform:none;transition:none} .scroll-cue .bar{animation:none} html{scroll-behavior:auto} }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .split, .bio-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .bio-card { position: static; }
}
@media (max-width: 720px){
  body { font-size: 16px; }
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(80vw, 340px);
    background: var(--midnight); flex-direction: column; justify-content: center;
    gap: 2rem; padding: 3rem; transform: translateX(100%); transition: transform 0.5s var(--ease);
  }
  .nav-links.open { transform: none; }
  .nav-links a { color: rgba(246,243,238,0.9) !important; font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 101; }
  .nav.menu-open .nav-toggle span { background: var(--porcelain); }
  .nav.menu-open .nav-toggle span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
  .nav.menu-open .nav-toggle span:nth-child(2){ opacity: 0; }
  .nav.menu-open .nav-toggle span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }
  .grid-3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-top { flex-direction: column; }
}

/* Hide Full Case button */
.eng-toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 2rem 0 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.eng-toggle-btn:hover { color: var(--ink); }