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

:root {
  --primary:    #1a3c5e;
  --accent:     #2a7de1;
  --accent-h:   #1a6abf;
  --text:       #1a1a1a;
  --text-muted: #555;
  --border:     #e5e7eb;
  --bg:         #f8f9fa;
  --white:      #ffffff;
  --radius:     6px;
  --shadow:     0 2px 16px rgba(0,0,0,0.09);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: linear-gradient(150deg, #dbeafe 0%, #f0f9ff 55%, #e0f2fe 100%) fixed;
  line-height: 1.7;
  font-size: 16px;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.07);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 4px;
}

.logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: #eef4fc;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--border);
  background: var(--white);
}
.mobile-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav.open { display: flex; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: var(--accent-h); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-outline:hover { background: #eef4fc; }
.btn-white {
  background: white;
  color: var(--primary);
}
.btn-white:hover { background: #f0f0f0; }

/* ===== HERO ===== */
.hero {
  position: relative;
  height: calc(100vh - 72px);
  min-height: 500px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: white;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 30, 60, 0.55);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  text-align: center;
  margin: 0 auto;
}
.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-content p {
  font-size: 1.05rem;
  opacity: 0.92;
  margin-bottom: 32px;
  line-height: 1.7;
}

/* ===== SECTIONS ===== */
section { padding: 72px 0; }
.bg-light { background: var(--bg); }

.section-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.25;
  margin-bottom: 16px;
}
.section-text {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 540px;
}

/* ===== IMAGE + TEXT TWO COLUMN ===== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  height: 360px;
  overflow: hidden;
}
.split.reverse .split-img { order: 2; }
.split.reverse .split-text { order: 1; }

.split-img {
  overflow: hidden;
  height: 360px;
}
.split-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.split-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 52px;
  height: 360px;
  overflow: hidden;
}
.split-text .btn { margin-top: 24px; align-self: flex-start; }

/* ===== CARDS ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.12); }
.card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 24px; }
.card-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.card-body p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== FORM ===== */
.form-wrap {
  max-width: 560px;
}
.form-group { margin-bottom: 18px; }
label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: white;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,125,225,0.12);
}
textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-success {
  display: none;
  background: #ecfdf5;
  border: 1.5px solid #10b981;
  color: #065f46;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  margin-top: 16px;
}

/* ===== EVENT SECTION ===== */
.event-box {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  max-width: 520px;
}
.event-box-header {
  background: var(--primary);
  color: white;
  padding: 20px 32px;
}
.event-box-header h2 { font-size: 1.4rem; font-weight: 700; }
.event-box-body { padding: 32px; }
.event-meta-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.event-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.event-meta-item strong { color: var(--text); }

/* ===== IMAGE GALLERY ===== */
.img-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.img-gallery img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
}

/* ===== PAGE HERO ===== */
.page-hero {
  background: var(--primary);
  color: white;
  padding: 52px 0 44px;
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 10px;
}
.page-hero p { opacity: 0.85; font-size: 1rem; }

/* ===== FOOTER ===== */
footer {
  background: #111827;
  color: rgba(255,255,255,0.7);
}
.footer-top {
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 280px; margin-top: 12px; }
.footer-brand .logo img { filter: brightness(0) invert(1); }
.footer-col h4 {
  color: white;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: white; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 6px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  transition: background 0.2s;
}
.social-btn:hover { background: var(--accent); color: white; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

/* ===== ADMIN BUTTON ===== */
.admin-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all 0.2s;
  flex-shrink: 0;
}
.admin-btn:hover { background: #f1f5f9; color: var(--primary); border-color: #cbd5e1; }

/* ===== LOGIN MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-card {
  background: white;
  border-radius: 12px;
  padding: 36px 32px;
  width: 360px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18);
  position: relative;
}
.modal-card h2 { font-size: 1.1rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.modal-card .modal-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 28px; height: 28px;
  border: none; background: none;
  cursor: pointer; font-size: 1.1rem;
  color: var(--text-muted); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: #f1f5f9; }
.modal-error {
  display: none;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 12px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
  .split-img { height: 300px; }
  .split.reverse .split-img { order: 0; }
  .split.reverse .split-text { order: 0; }
  .split-text { padding: 36px 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
  .img-gallery { grid-template-columns: 1fr; }
}