/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy: #0F1E41;
  --navy-light: #1a2d5a;
  --navy-dark: #0a1530;
  --gold: #C6A350;
  --gold-light: #d4b86e;
  --gold-dark: #a88a3a;
  --white: #ffffff;
  --off-white: #f5f6f8;
  --gray-100: #eef0f4;
  --gray-200: #dde1e8;
  --gray-300: #b0b8c9;
  --gray-600: #5a6476;
  --gray-800: #2c3444;
  --sidebar-width: 270px;
  --header-height: 0px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--gray-800);
  background: var(--off-white);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--gold-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }
h1,h2,h3,h4,h5,h6 { color: var(--navy); line-height: 1.3; font-weight: 700; }

/* ===== SIDEBAR ===== */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--navy);
  display: flex; flex-direction: column;
  z-index: 1000;
  transition: transform var(--transition);
  overflow-y: auto;
}

.sidebar-header {
  padding: 28px 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  text-align: center;
}
.sidebar-header img { margin: 0 auto; max-width: 180px; }

.sidebar-nav { flex: 1; padding: 16px 0; }
.sidebar-nav ul { list-style: none; }
.sidebar-nav li a {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 28px;
  color: var(--gray-300);
  font-size: .9rem; font-weight: 500;
  letter-spacing: .3px;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.sidebar-nav li a:hover,
.sidebar-nav li a.active {
  color: var(--white);
  background: rgba(255,255,255,.06);
  border-left-color: var(--gold);
}
.sidebar-nav li a.active { color: var(--gold); }

.sidebar-nav li a svg {
  width: 20px; height: 20px; flex-shrink: 0;
  stroke: currentColor; fill: none;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

.sidebar-footer {
  padding: 20px 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
}
.sidebar-footer p {
  color: var(--gray-300); font-size: .7rem; opacity: .6;
}

/* ===== MOBILE HAMBURGER ===== */
.hamburger {
  display: none;
  position: fixed; top: 16px; left: 16px;
  z-index: 1100;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--navy);
  border: none; cursor: pointer;
  align-items: center; justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.hamburger span,
.hamburger span::before,
.hamburger span::after {
  display: block; width: 22px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: var(--transition);
  position: relative;
}
.hamburger span::before,
.hamburger span::after { content: ''; position: absolute; left: 0; }
.hamburger span::before { top: -7px; }
.hamburger span::after { top: 7px; }
.hamburger.is-active span { background: transparent; }
.hamburger.is-active span::before { top: 0; transform: rotate(45deg); }
.hamburger.is-active span::after { top: 0; transform: rotate(-45deg); }

.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 999;
  opacity: 0; transition: opacity var(--transition);
}
.sidebar-overlay.is-visible { display: block; opacity: 1; }

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, var(--navy) 100%);
  color: var(--white);
  padding: 100px 60px 80px;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='https://images.unsplash.com/vector-1773995888593-69e4604e1031?fm=jpg&q=60&w=3000&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero h1 { font-size: 2.8rem; margin-bottom: 20px; color: var(--white); }
.hero h1 span { color: var(--gold); }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,.8); margin-bottom: 30px; max-width: 580px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(198,163,80,.15);
  border: 1px solid rgba(198,163,80,.3);
  border-radius: 50px; padding: 6px 18px;
  font-size: .8rem; color: var(--gold); font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 24px;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border-radius: 8px; font-weight: 600;
  font-size: .95rem;
  transition: all var(--transition);
  border: none; cursor: pointer;
  text-decoration: none;
}
.btn-gold {
  background: var(--gold); color: var(--navy);
}
.btn-gold:hover { background: var(--gold-light); color: var(--navy); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(198,163,80,.35); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,.3);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(15,30,65,.3); }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== SECTIONS ===== */
.section { padding: 70px 60px; }
.section-sm { padding: 50px 60px; }
.section-bg { background: var(--white); }
.section-header { margin-bottom: 50px; }
.section-header h2 { font-size: 2rem; margin-bottom: 12px; }
.section-header .accent-line {
  width: 50px; height: 3px; background: var(--gold); border-radius: 2px; margin-bottom: 16px;
}
.section-header p { color: var(--gray-600); font-size: 1.05rem; max-width: 600px; }

/* ===== CARDS ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.card {
  background: var(--white);
  border-radius: 12px;
  padding: 36px 30px;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--gold); transform: scaleX(0);
  transition: transform var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(15,30,65,.08); }
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(15,30,65,.06), rgba(15,30,65,.02));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--navy);
}
.card-icon svg { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--gray-600); font-size: .92rem; }

/* Section cards on off-white bg */
.section:not(.section-bg) .card { background: var(--white); }

/* ===== STATS ===== */
.stats-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
  gap: 24px; margin-top: 40px;
}
.stat-item { text-align: center; padding: 24px 16px; }
.stat-number {
  font-size: 2.4rem; font-weight: 800; color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: .85rem; color: var(--gray-600); font-weight: 500; text-transform: uppercase; letter-spacing: .5px; }

/* ===== TIMELINE ===== */
.timeline { position: relative; padding-left: 36px; }
.timeline::before {
  content: ''; position: absolute; left: 12px; top: 0; bottom: 0;
  width: 2px; background: var(--gray-200);
}
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-item::before {
  content: ''; position: absolute; left: -30px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gold); border: 3px solid var(--off-white);
}
.timeline-item h4 { font-size: 1rem; margin-bottom: 4px; }
.timeline-item .date { font-size: .8rem; color: var(--gold-dark); font-weight: 600; margin-bottom: 6px; }
.timeline-item p { color: var(--gray-600); font-size: .9rem; }

/* ===== AI SECTION ===== */
.ai-highlight {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: 16px; padding: 50px; color: var(--white);
  position: relative; overflow: hidden;
}
.ai-highlight::after {
  content: ''; position: absolute; right: -60px; top: -60px;
  width: 260px; height: 260px; border-radius: 50%;
  background: rgba(198,163,80,.08);
}
.ai-highlight h2 { color: var(--gold); font-size: 1.8rem; margin-bottom: 18px; }
.ai-highlight p { color: rgba(255,255,255,.8); margin-bottom: 14px; }
.ai-highlight ul { list-style: none; margin: 20px 0; }
.ai-highlight ul li {
  padding: 8px 0 8px 28px; position: relative;
  color: rgba(255,255,255,.85); font-size: .95rem;
}
.ai-highlight ul li::before {
  content: ''; position: absolute; left: 0; top: 16px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold);
}

/* ===== FORM ===== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label {
  font-size: .85rem; font-weight: 600; color: var(--navy);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-family: inherit; font-size: .95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--white);
  color: var(--gray-800);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(198,163,80,.15);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ===== CONTACT INFO ===== */
.contact-info-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px; margin-bottom: 40px;
}
.contact-info-card {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 24px; background: var(--white);
  border-radius: 12px; border: 1px solid var(--gray-200);
}
.contact-info-card .icon-circle {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(15,30,65,.06);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  color: var(--navy);
}
.contact-info-card .icon-circle svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.contact-info-card h4 { font-size: .85rem; margin-bottom: 4px; }
.contact-info-card p { font-size: .88rem; color: var(--gray-600); }

/* ===== FOOTER ===== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,.5);
  padding: 30px 60px;
  font-size: .8rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer a { color: var(--gold); }

/* ===== SEMINAR TABLE ===== */
.seminar-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.seminar-table th {
  background: var(--navy); color: var(--white); padding: 14px 20px;
  text-align: left; font-size: .85rem; font-weight: 600;
  letter-spacing: .3px; text-transform: uppercase;
}
.seminar-table th:first-child { border-radius: 8px 0 0 0; }
.seminar-table th:last-child { border-radius: 0 8px 0 0; }
.seminar-table td {
  padding: 14px 20px; border-bottom: 1px solid var(--gray-200);
  font-size: .92rem;
}
.seminar-table tr:hover td { background: rgba(198,163,80,.04); }
.badge-tba {
  display: inline-block; padding: 3px 12px;
  background: rgba(198,163,80,.12); color: var(--gold-dark);
  border-radius: 50px; font-size: .78rem; font-weight: 600;
}

/* ===== TWO COL LAYOUT ===== */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }

/* ===== EXPERTISE TAGS ===== */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tag {
  padding: 6px 16px; border-radius: 50px;
  background: rgba(15,30,65,.06);
  font-size: .82rem; font-weight: 500; color: var(--navy);
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.is-visible { opacity: 1; transform: translateY(0); }

/* ===== PAGE HEADER (non-home) ===== */
.page-header {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  padding: 60px 60px 50px; color: var(--white);
  position: relative; overflow: hidden;
}
.page-header::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='https://img.freepik.com/premium-vector/plus-symbol-grid-repeat-pattern-white-background-vector-illustration_34480-855.jpg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-header h1 { font-size: 2.2rem; color: var(--white); position: relative; }
.page-header p { color: rgba(255,255,255,.7); margin-top: 10px; position: relative; }
.breadcrumb {
  display: flex; gap: 8px; align-items: center;
  font-size: .82rem; color: rgba(255,255,255,.5);
  margin-bottom: 12px; position: relative;
}
.breadcrumb a { color: var(--gold); }
.breadcrumb svg { width: 14px; height: 14px; stroke: rgba(255,255,255,.4); fill: none; stroke-width: 2; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.is-open { transform: translateX(0); }
  .hamburger { display: flex; }
  .main-content { margin-left: 0; }
  .hero { padding: 80px 30px 60px; }
  .hero h1 { font-size: 2rem; }
  .section, .section-sm { padding: 50px 30px; }
  .page-header { padding: 60px 30px 40px; }
  .footer { padding: 24px 30px; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .ai-highlight { padding: 32px; }
}

@media (max-width: 640px) {
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 1rem; }
  .section, .section-sm { padding: 40px 20px; }
  .page-header { padding: 50px 20px 30px; }
  .card-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .footer { padding: 20px; flex-direction: column; text-align: center; }
  .hero-buttons { flex-direction: column; }
  .contact-info-grid { grid-template-columns: 1fr; }
  .seminar-table-wrap { overflow-x: auto; }
}