/* 
  KIEN LAC DIDI CENTER - Main Stylesheet
  Theme: Imperial Deep Red (#5d0201), Warm Gold (#d4af37), Sleek Dark (#18181b), Pearl White (#f8fafc)
*/

@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,300;0,400;0,700;0,900;1,300;1,400;1,700&family=Montserrat:wght@400;500;600;700;800;900&family=Roboto:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

:root {
  --primary: #5d0201;
  --primary-light: #7e0c0b;
  --primary-dark: #3e0100;
  --primary-subtle: #fbf2f2;
  --gold: #d4af37;
  --gold-light: #f5d77f;
  --gold-dark: #997300;
  --dark: #18181b;
  --dark-surface: #27272a;
  --text-main: #212121;
  --text-muted: #555555;
  --bg-light: #f8fafc;
  --border-color: #e2e8f0;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(93, 2, 1, 0.1);
  --shadow-lg: 0 10px 30px rgba(93, 2, 1, 0.16);
  --shadow-xl: 0 20px 45px rgba(0, 0, 0, 0.22);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Lato', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
}

body {
  line-height: 1.65;
  overflow-x: hidden;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', 'Lato', sans-serif;
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Top Announcement Bar */
.top-bar {
  background-color: var(--primary-dark);
  color: #f1f5f9;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(212, 175, 55, 0.3);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #e2e8f0;
}

.top-bar-item a:hover {
  color: var(--gold-light);
}

.top-bar-badge {
  background: linear-gradient(135deg, var(--gold) 0%, #aa820a 100%);
  color: #18181b;
  font-weight: 700;
  padding: 0.15rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 8px 24px rgba(93, 2, 1, 0.12);
  background: rgba(255, 255, 255, 0.98);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.site-brand img {
  height: 54px;
  width: auto;
  transition: var(--transition);
}

.site-brand:hover img {
  transform: scale(1.02);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 1rem;
  color: #333333;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--gold) 100%);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-contact {
  background: linear-gradient(135deg, var(--primary) 0%, #850c0a 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(93, 2, 1, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-contact:hover {
  background: linear-gradient(135deg, #7c0402 0%, #a4100e 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(93, 2, 1, 0.35);
  color: #ffffff;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
  padding: 0.5rem;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #2b0201 0%, #5d0201 50%, #400100 100%);
  color: #ffffff;
  padding: 5rem 0 6rem;
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 920px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: var(--gold-light);
  background: linear-gradient(90deg, #fef08a, #d4af37);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.35rem;
  font-weight: 500;
  color: #f1f5f9;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.hero-desc {
  font-size: 1.05rem;
  color: #e2e8f0;
  margin-bottom: 2.25rem;
  max-width: 760px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, #b8860b 100%);
  color: #18181b !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ffd700 0%, #d4af37 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(212, 175, 55, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: 8px;
  backdrop-filter: blur(8px);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* Hero Stats Bar */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.9rem;
  color: #cbd5e1;
  font-weight: 400;
}

/* Sections Global */
.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem;
}

.section-badge {
  display: inline-block;
  color: var(--primary);
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  background: rgba(93, 2, 1, 0.08);
  padding: 0.3rem 0.9rem;
  border-radius: 30px;
}

.section-title {
  font-size: 2.25rem;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Feature News Cards */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.news-card {
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(93, 2, 1, 0.25);
}

.news-card-media {
  position: relative;
  background: #1e293b;
  height: 220px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-card-media img,
.news-card-media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-card:hover .news-card-media img,
.news-card:hover .news-card-media svg {
  transform: scale(1.05);
}

.news-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.news-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: #888888;
  margin-bottom: 0.75rem;
}

.news-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.news-card-title a:hover {
  color: var(--primary-light);
}

.news-card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.news-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid #f1f5f9;
}

.card-link {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  color: var(--gold-dark);
  gap: 0.6rem;
}

/* Diagram Spotlight Section */
.diagram-spotlight {
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid #e2e8f0;
  margin-bottom: 3rem;
}

.diagram-wrapper {
  background: #0f172a;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin: 1.5rem 0;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.diagram-wrapper:hover {
  box-shadow: 0 16px 40px rgba(93, 2, 1, 0.25);
}

.diagram-wrapper img,
.diagram-wrapper svg {
  display: block;
  width: 100%;
  height: auto;
}

.diagram-badge-overlay {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: rgba(15, 23, 42, 0.85);
  color: #fde047;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Core Values / Culture Grid */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.value-card {
  background: #ffffff;
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  transition: width 0.3s ease;
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(93, 2, 1, 0.2);
}

.value-card:hover::before {
  width: 8px;
}

.value-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(93, 2, 1, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.value-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.value-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Proverb / Philosophy Banner */
.philosophy-banner {
  background: linear-gradient(135deg, #3e0100 0%, #5d0201 100%);
  color: #ffffff;
  padding: 4rem 2.5rem;
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: 3.5rem;
}

.philosophy-banner::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 14rem;
  color: rgba(255, 255, 255, 0.06);
  font-family: serif;
  line-height: 1;
  pointer-events: none;
}

.philosophy-quote {
  font-size: 1.4rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.7;
  max-width: 900px;
  margin: 0 auto 1.75rem;
  text-align: center;
  color: #f8fafc;
}

.philosophy-pillars {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.pillar-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--gold-light);
  font-size: 1.05rem;
}

/* Contact Details & Form Section */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-card {
  background: #ffffff;
  padding: 2.5rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.contact-info-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(93, 2, 1, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.contact-info-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: #334155;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid #cbd5e1;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(93, 2, 1, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Floating Action Buttons */
.floating-actions {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 999;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff !important;
  font-size: 1.3rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
  position: relative;
}

.float-whatsapp {
  background-color: #25d366;
}

.float-whatsapp:hover {
  background-color: #20ba5a;
  transform: scale(1.1);
}

.float-whatsapp::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #25d366;
  opacity: 0.4;
  animation: pulse-ring 2s infinite;
  z-index: -1;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.float-phone {
  background: var(--primary);
}

.float-phone:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}

.float-top {
  background: #334155;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.float-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.float-top:hover {
  background: #1e293b;
  transform: translateY(-3px);
}

/* Footer */
.site-footer {
  background-color: #18181b;
  color: #cbd5e1;
  padding: 4.5rem 0 2rem;
  border-top: 4px solid var(--primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--gold);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--gold-light);
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: #64748b;
}

/* Modal for Diagrams / Documents */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  backdrop-filter: blur(8px);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: #ffffff;
  border-radius: 16px;
  max-width: 1000px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  animation: modal-enter 0.3s ease-out;
}

@keyframes modal-enter {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #64748b;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.modal-body {
  padding: 1.5rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .top-bar-inner {
    justify-content: center;
    text-align: center;
  }
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - 80px);
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    transition: left 0.3s ease;
    z-index: 1001;
  }
  .nav-menu.open {
    left: 0;
  }
  .mobile-toggle {
    display: block;
  }
  .header-actions .btn-contact {
    display: none;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .philosophy-banner {
    padding: 2.5rem 1.5rem;
  }
  .philosophy-quote {
    font-size: 1.15rem;
  }
}