/* ==========================================================================
   AERTC — Ahluwalia's Educational Research & Training Council
   Stylesheet. Token system below; everything else derives from it.
   ========================================================================== */

:root {
  /* Color tokens */
  --forest-deep:   #0F2E20;
  --forest:        #123524;
  --forest-2:      #1B4332;
  --emerald:       #2D6A4F;
  --emerald-light: #40916C;
  --sage:          #B7E4C7;
  --sage-soft:     #DCEFE2;
  --gold:          #C9A24B;
  --gold-soft:     #E4CE96;
  --parchment:     #F7F5EF;
  --parchment-2:   #EFEBDD;
  --ink:           #16201A;
  --ink-soft:      #48584F;
  --mist:          #E9EFEA;
  --danger:        #8B3A3A;

  /* Type */
  --font-display: "Playfair Display", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* Layout */
  --header-h: 84px;
  --radius: 10px;
  --shadow-card: 0 6px 24px rgba(15, 46, 32, 0.12);
  --shadow-soft: 0 2px 10px rgba(15, 46, 32, 0.08);
  --max-width: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--parchment);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--forest-deep);
  line-height: 1.18;
  margin: 0 0 .5em;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 4.4vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.3rem); }
h3 { font-size: 1.3rem; }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .72rem;
  color: var(--gold);
  font-weight: 600;
}

.lede { color: var(--ink-soft); font-size: 1.08rem; max-width: 62ch; }

.gold-rule {
  width: 64px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--sage));
  border-radius: 3px;
  margin: 14px 0 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--gold), var(--gold-soft));
  color: var(--forest-deep);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(201,162,75,.35); }
.btn-outline {
  background: transparent;
  border-color: rgba(247,245,239,.5);
  color: var(--parchment);
}
.btn-outline:hover { background: rgba(247,245,239,.12); transform: translateY(-2px); }
.btn-outline-dark {
  background: transparent;
  border-color: var(--forest);
  color: var(--forest);
}
.btn-outline-dark:hover { background: var(--forest); color: var(--parchment); }

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(18,53,36,.97);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(201,162,75,.35);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--parchment);
  min-width: 0;
}
.brand img { width: 46px; height: 46px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text .name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  white-space: nowrap;
}
.brand-text .tag {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  color: var(--sage);
  text-transform: uppercase;
}

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > ul { display: flex; align-items: center; gap: 2px; }
.main-nav a.nav-link {
  color: var(--parchment);
  font-size: .88rem;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: 6px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a.nav-link:hover, .main-nav li.active > a.nav-link {
  background: rgba(201,162,75,.16);
  color: var(--gold-soft);
}
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--parchment);
  min-width: 240px;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  border-top: 3px solid var(--gold);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: 6px;
  font-size: .86rem;
  color: var(--forest-deep);
  font-weight: 500;
}
.dropdown a:hover { background: var(--sage-soft); color: var(--emerald); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(247,245,239,.4);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--parchment);
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--parchment); margin: 4px 0; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 12% 18%, rgba(201,162,75,.14), transparent 42%),
              radial-gradient(circle at 85% 82%, rgba(183,228,199,.10), transparent 45%),
              linear-gradient(160deg, var(--forest-deep) 0%, var(--forest) 46%, var(--emerald) 130%);
  color: var(--parchment);
  padding: 92px 0 70px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .5;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,.028) 0 2px, transparent 2px 42px),
    repeating-linear-gradient(25deg, rgba(255,255,255,.022) 0 2px, transparent 2px 42px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { color: var(--parchment); }
.hero .lede { color: var(--sage-soft); }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.seal-panel {
  position: relative;
  border: 1px solid rgba(201,162,75,.4);
  border-radius: 14px;
  background: rgba(247,245,239,.05);
  padding: 30px;
  text-align: center;
}
.seal-panel img { width: 108px; margin: 0 auto 16px; }
.seal-panel .motto { font-family: var(--font-display); font-style: italic; color: var(--sage-soft); font-size: 1.02rem; }
.seal-panel .since { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; color: var(--gold-soft); margin-top: 10px; text-transform: uppercase; }

.stat-strip {
  position: relative;
  background: var(--forest-deep);
  border-top: 1px solid rgba(201,162,75,.25);
  border-bottom: 1px solid rgba(201,162,75,.25);
}
.stat-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 26px 24px;
}
.stat { text-align: center; color: var(--parchment); }
.stat .num { font-family: var(--font-display); font-size: 1.9rem; color: var(--gold-soft); font-weight: 700; }
.stat .label { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--sage-soft); }

/* ---------------- Sections ---------------- */
.section { padding: 74px 0; }
.section-alt { background: var(--mist); }
.section-head { max-width: 640px; margin-bottom: 40px; }

.divisions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.division-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(27,67,50,.08);
  border-top: 3px solid var(--emerald);
  transition: transform .18s ease, box-shadow .18s ease;
}
.division-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); border-top-color: var(--gold); }
.division-card .icon {
  width: 42px; height: 42px; border-radius: 9px;
  background: var(--sage-soft);
  color: var(--forest);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 14px;
}
.division-card h3 { font-size: 1.08rem; margin-bottom: 6px; }
.division-card p { color: var(--ink-soft); font-size: .9rem; margin: 0 0 12px; }
.division-card .go { font-family: var(--font-mono); font-size: .74rem; color: var(--emerald); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }

/* ---------------- Leadership ---------------- */
.people-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.person-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  text-align: center;
  border: 1px solid rgba(27,67,50,.08);
}
.person-card .photo { aspect-ratio: 1/1; background: var(--sage-soft); }
.person-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.person-card .info { padding: 18px 16px 22px; }
.person-card .info h3 { font-size: 1.02rem; margin-bottom: 2px; }
.person-card .role { font-family: var(--font-mono); font-size: .7rem; color: var(--emerald); text-transform: uppercase; letter-spacing: .07em; font-weight: 600; }
.person-card .desc { font-size: .84rem; color: var(--ink-soft); margin-top: 10px; }
.person-card.director { border-top: 4px solid var(--gold); }
.person-card.director .role { color: var(--gold); }

/* ---------------- Global presence ---------------- */
.presence-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.country-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 20px;
}
.country-list li {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(27,67,50,.18);
  font-size: .94rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.country-list li::before {
  content: "";
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
}
.offices { display: flex; flex-direction: column; gap: 16px; }
.office-card {
  background: var(--forest-deep);
  color: var(--parchment);
  padding: 20px 22px;
  border-radius: var(--radius);
  border-left: 4px solid var(--gold);
}
.office-card h4 { color: var(--parchment); margin-bottom: 4px; font-family: var(--font-display); }
.office-card p { margin: 0; color: var(--sage-soft); font-size: .9rem; }

/* ---------------- Layout with sidebar (inner pages) ---------------- */
.page-hero {
  background: linear-gradient(150deg, var(--forest-deep), var(--emerald) 140%);
  color: var(--parchment);
  padding: 56px 0 46px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,.03) 0 2px, transparent 2px 40px);
}
.page-hero .container { position: relative; }
.breadcrumb { font-family: var(--font-mono); font-size: .72rem; color: var(--sage-soft); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.breadcrumb a { color: var(--gold-soft); }
.page-hero h1 { color: var(--parchment); margin-bottom: 8px; }
.page-hero p { color: var(--sage-soft); max-width: 60ch; }

.layout-with-sidebar {
  display: grid;
  grid-template-columns: 2.4fr 1fr;
  gap: 40px;
  align-items: start;
  padding: 56px 0 80px;
}
.content-card { background: #fff; border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-soft); border: 1px solid rgba(27,67,50,.08); margin-bottom: 24px; }
.content-card h2 { margin-top: 0; }
.content-card ul.bullets li { position: relative; padding-left: 22px; margin-bottom: 10px; color: var(--ink-soft); }
.content-card ul.bullets li::before { content: "◆"; position: absolute; left: 0; color: var(--gold); font-size: .7rem; top: 5px; }

.info-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.info-table th, .info-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--mist); font-size: .9rem; }
.info-table th { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .05em; font-size: .72rem; color: var(--emerald); }

/* Sidebar */
.sidebar { position: sticky; top: calc(var(--header-h) + 20px); display: flex; flex-direction: column; gap: 18px; }
.side-box { background: #fff; border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-soft); border: 1px solid rgba(27,67,50,.08); }
.side-box h4 {
  font-family: var(--font-mono);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--emerald);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sage-soft);
}
.side-box ul li { margin-bottom: 10px; }
.side-box ul li a { font-size: .88rem; display: flex; justify-content: space-between; gap: 6px; color: var(--forest); }
.side-box ul li a:hover { color: var(--emerald); }
.side-box ul li a .arrow { color: var(--gold); }
.side-box.dark { background: var(--forest-deep); border: none; }
.side-box.dark h4 { color: var(--gold-soft); border-bottom-color: rgba(201,162,75,.3); }
.side-box.dark ul li a { color: var(--parchment); }
.side-box.dark p { color: var(--sage-soft); font-size: .86rem; }
.side-box .mini-flags { display: flex; flex-wrap: wrap; gap: 6px; }
.side-box .mini-flags span {
  font-family: var(--font-mono); font-size: .68rem; background: var(--sage-soft);
  color: var(--forest); padding: 4px 8px; border-radius: 20px;
}

/* ---------------- Footer ---------------- */
.site-footer { background: var(--forest-deep); color: var(--sage-soft); padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 36px; }
.footer-col h4 { color: var(--gold-soft); font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a { font-size: .88rem; color: var(--sage-soft); }
.footer-col ul li a:hover { color: var(--gold-soft); }
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.footer-brand img { width: 42px; }
.footer-brand .name { font-family: var(--font-display); color: var(--parchment); font-size: 1.1rem; font-weight: 700; }
.footer-bottom { border-top: 1px solid rgba(201,162,75,.2); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .8rem; color: rgba(233,239,234,.6); }

/* ---------------- Utility ---------------- */
.tag-pill {
  display: inline-block; font-family: var(--font-mono); font-size: .68rem;
  background: var(--sage-soft); color: var(--forest); padding: 4px 10px; border-radius: 20px; margin: 3px 4px 3px 0;
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 6px; color: var(--forest); }
input, textarea, select {
  width: 100%; padding: 11px 13px; border-radius: 7px; border: 1px solid rgba(27,67,50,.2);
  font-family: var(--font-body); font-size: .92rem; background: var(--parchment);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--gold); border-color: var(--gold); }

/* ---------------- Responsive ---------------- */
@media (max-width: 1080px) {
  .divisions-grid { grid-template-columns: repeat(3, 1fr); }
  .people-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .hero-grid { grid-template-columns: 1fr; }
  .seal-panel { order: -1; }
  .stat-strip .container { grid-template-columns: repeat(2, 1fr); }
  .layout-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { position: static; order: 2; }
  .presence-wrap { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }

  /* Mobile nav becomes a slide-down panel */
  .main-nav.open {
    display: block;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--forest-deep);
    padding: 10px 18px 24px;
    box-shadow: 0 12px 24px rgba(0,0,0,.25);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .main-nav.open > ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav.open .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border-top: none; background: rgba(247,245,239,.04);
    display: none; margin: 4px 0 4px 14px; padding: 4px;
  }
  .main-nav.open .dropdown a { color: var(--parchment); }
  .main-nav.open .dropdown a:hover { background: rgba(201,162,75,.16); color: var(--gold-soft); }
  .main-nav.open li.dd-open .dropdown { display: block; }
  .main-nav.open a.nav-link { padding: 13px 10px; border-bottom: 1px solid rgba(255,255,255,.06); }
}

@media (max-width: 640px) {
  .divisions-grid { grid-template-columns: 1fr 1fr; }
  .people-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-strip .container { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
  .section { padding: 50px 0; }
  .content-card { padding: 24px 20px; }
}

@media (max-width: 420px) {
  .divisions-grid, .people-grid, .footer-grid { grid-template-columns: 1fr; }
  .brand-text .name { font-size: .92rem; }
}