/* ==========================================================================
   KKCC INFO SYSTEMS - Custom Modern Responsive Stylesheet
   Designed without third-party frameworks (Vanilla CSS core design system)
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  --primary-navy: #0b132b;
  --primary-dark: #1c2541;
  --accent-blue: #3a506b;
  --accent-cyan: #00f2fe;
  --accent-cyan-glow: rgba(0, 242, 254, 0.25);
  --accent-violet: #7c3aed;
  --accent-green: #10b981;
  
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --bg-dark-card: #151e33;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-glass-dark: rgba(15, 23, 42, 0.9);
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #f1f5f9;
  --text-dim: #94a3b8;
  
  --border-light: #e2e8f0;
  --border-dark: #334155;
  --border-glow: rgba(0, 242, 254, 0.4);
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 20px rgba(0, 242, 254, 0.15);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: #0284c7;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-cyan);
}

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

ul {
  list-style: none;
}

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-dark {
  background-color: var(--primary-navy);
  color: var(--text-light);
}

/* --- Top Announcement Bar --- */
.top-bar {
  background: linear-gradient(90deg, var(--primary-navy), var(--primary-dark));
  color: var(--text-light);
  font-size: 0.8rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.top-info span {
  margin-right: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  opacity: 0.9;
  font-size: 0.82rem;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.82rem;
}

.top-actions a {
  color: var(--accent-cyan);
  font-weight: 500;
}
.top-actions a:hover {
  text-decoration: underline;
}

/* --- Main Navigation Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass-dark);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.3rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.brand-logo span.highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  padding: 0.1rem 0.45rem;
  font-size: 0.65rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: nowrap;
}

.nav-link {
  color: #cbd5e1;
  font-weight: 500;
  font-size: 0.86rem;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.55rem;
  right: 0.55rem;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 220px;
  background: var(--primary-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 1100;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1.2rem;
  color: #cbd5e1;
  font-size: 0.9rem;
  transition: var(--transition);
}

.dropdown-item:hover {
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  padding-left: 1.5rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.6);
  color: #ffffff;
}

.btn-accent {
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  color: var(--primary-navy);
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(0, 242, 254, 0.5);
  color: var(--primary-navy);
}

.btn-outline {
  background: transparent;
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-outline:hover {
  background: rgba(0, 242, 254, 0.1);
  color: #ffffff;
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  background: radial-gradient(circle at top right, #1e293b, var(--primary-navy));
  color: #ffffff;
  padding: 5rem 0 6rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -1px;
}

.hero-title span.gradient-text {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00c6ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: #94a3b8;
  margin-bottom: 2rem;
  max-width: 540px;
}

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

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 30px var(--accent-cyan-glow);
  border: 1px solid var(--border-glow);
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--accent-cyan);
  font-weight: 800;
}

.stat-item p {
  font-size: 0.875rem;
  color: #94a3b8;
}

/* --- Section Titles --- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  color: #0284c7;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.section-dark .section-title {
  color: #ffffff;
}

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

.section-dark .section-desc {
  color: #94a3b8;
}

/* --- Card Grid & Features --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.card-img-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-dark);
}

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

.card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.85);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  backdrop-filter: blur(4px);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.tech-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: #f1f5f9;
  color: #334155;
  border: 1px solid #cbd5e1;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  transition: var(--transition);
}

.card:hover .tech-chip {
  background: rgba(0, 242, 254, 0.1);
  color: #0284c7;
  border-color: rgba(0, 242, 254, 0.4);
}

.card-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}

/* --- Testimonials Card Styling --- */
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0284c7, #7c3aed);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.25);
  flex-shrink: 0;
}

.testimonial-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.15rem;
}

.testimonial-info .course-tag {
  font-size: 0.82rem;
  color: #0284c7;
  font-weight: 600;
}

.testimonial-rating {
  color: #f59e0b;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.testimonial-quote {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  font-style: italic;
  flex-grow: 1;
}

.testimonial-footer {
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.mode-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.mode-badge.offline {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.mode-badge.online {
  background: rgba(59, 130, 246, 0.12);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Feature Box */
.feature-box {
  background: #ffffff;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.feature-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-cyan);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  color: #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.925rem;
}

/* --- AdSense Containers --- */
.ad-slot-header,
.ad-slot-content,
.ad-slot-footer {
  width: 100%;
  margin: 2rem 0;
  text-align: center;
  background: #ffffff;
  border: 1px dashed #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  overflow: hidden;
}

.ad-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 0.25rem;
  display: block;
}

/* --- Interactive Course Filter Tabs --- */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.6rem 1.25rem;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary-navy);
  color: var(--accent-cyan);
  border-color: var(--primary-navy);
  box-shadow: 0 4px 12px rgba(11, 19, 43, 0.2);
}

/* --- Code Snippet & Study Resource Styling --- */
.code-container {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  overflow: hidden;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-md);
}

.code-header {
  background: #1e293b;
  padding: 0.6rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #334155;
  font-size: 0.85rem;
  color: #94a3b8;
}

.code-header .lang-tag {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
}

.copy-btn {
  background: transparent;
  border: 1px solid #475569;
  color: #cbd5e1;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--accent-cyan);
  color: var(--primary-navy);
  border-color: var(--accent-cyan);
}

pre code {
  display: block;
  padding: 1.25rem;
  font-family: 'Consolas', 'Fira Code', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-x: auto;
  color: #38bdf8;
}

/* Syntax Highlighting Utilities */
.code-keyword { color: #f43f5e; font-weight: bold; }
.code-type { color: #c084fc; }
.code-string { color: #4ade80; }
.code-comment { color: #64748b; font-style: italic; }
.code-func { color: #38bdf8; }

/* --- Gallery & Lightbox --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  border: 1px solid var(--border-light);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 19, 43, 0.9), rgba(11, 19, 43, 0.2));
  opacity: 0;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #ffffff;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.gallery-category {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Modal Lightbox */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(11, 19, 43, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  max-width: 900px;
  width: 100%;
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0,242,254,0.2);
  border: 1px solid var(--border-glow);
}

.modal-img {
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
  background: #000;
}

.modal-caption {
  padding: 1.25rem 1.75rem;
  color: #ffffff;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: rgba(0,0,0,0.6);
  color: #ffffff;
  border: none;
  font-size: 1.8rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--accent-cyan);
  color: var(--primary-navy);
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: #0284c7;
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '-';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.975rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}

/* --- Contact & Form Styling --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.info-card {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  color: #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

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

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* --- Footer --- */
.footer {
  background: var(--primary-navy);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-title {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #cbd5e1;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

/* Floating Back to Top */
.back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 44px;
  height: 44px;
  background: var(--accent-cyan);
  color: var(--primary-navy);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0,242,254,0.4);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
}

/* --- Responsive Media Queries --- */
@media (max-width: 1080px) {
  .hero-grid, .contact-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2.3rem;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    background: var(--primary-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-dark);
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    border: none;
    padding-left: 1rem;
    display: none;
  }
  
  .dropdown.open .dropdown-menu {
    display: block;
  }
}

@media (max-width: 600px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .top-info span {
    display: block;
    margin-bottom: 0.25rem;
  }
}