/* ==========================================
   SARASWATHI — Digital Marketing Portfolio
   Master Stylesheet
   Navy: #0F172A | Teal: #14B8A6 | Gold: #F59E0B
   ========================================== */

/* --- CSS Variables / Themes --- */
:root {
  --navy: #0F172A;
  --navy-light: #1E293B;
  --navy-card: #1E293B;
  --teal: #14B8A6;
  --teal-dark: #0D9488;
  --teal-light: #5EEAD4;
  --gold: #F59E0B;
  --gold-light: #FCD34D;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius: 16px;
  --radius-sm: 8px;
  --radius-xl: 24px;
  --nav-height: 72px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(20,184,166,0.15);
  --shadow-gold: 0 0 40px rgba(245,158,11,0.15);

  --glass-bg: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.12);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.2);

  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --card-bg: #FFFFFF;
  --card-border: #E2E8F0;
  --nav-bg: rgba(255,255,255,0.85);
  --footer-bg: #0F172A;
  --footer-text: #94A3B8;
}

[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --card-bg: #1E293B;
  --card-border: #334155;
  --nav-bg: rgba(15,23,42,0.85);
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 20px); }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s, color 0.4s;
}
::selection { background: var(--teal); color: #fff; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--teal); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--teal-dark); }
ul { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  color: var(--teal); margin-bottom: 12px;
}
.section-tag::before {
  content: ''; width: 30px; height: 2px; background: var(--teal); border-radius: 2px;
}
.section-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  margin-bottom: 16px; color: var(--text-primary);
}
.section-sub {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 620px; margin-bottom: 48px;
}

/* --- Container --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 50px;
  font-family: var(--font-sans); font-size: 0.95rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: var(--transition); letter-spacing: 0.2px;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0; transition: var(--transition);
}
.btn:hover::after { opacity: 1; }
.btn-primary {
  background: var(--teal); color: #fff;
}
.btn-primary:hover {
  background: var(--teal-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(20,184,166,0.35);
  color: #fff;
}
.btn-outline {
  background: transparent; color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline:hover {
  background: rgba(20,184,166,0.08);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(20,184,166,0.15);
  color: var(--teal);
}
.btn-gold {
  background: var(--gold); color: #fff;
}
.btn-gold:hover {
  background: #D97706;
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(245,158,11,0.35);
  color: #fff;
}
.btn-white {
  background: #fff; color: var(--navy);
}
.btn-white:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-lg); color: var(--navy);
}
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }

/* --- Glassmorphism --- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* --- Navigation --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }
.navbar .container {
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.nav-logo {
  font-size: 1.4rem; font-weight: 800; color: var(--text-primary);
  display: flex; align-items: center; gap: 6px;
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--teal); font-weight: 900; }
.nav-logo .logo-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:0.3} }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 0.88rem; color: var(--text-secondary); font-weight: 500;
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--teal); border-radius: 2px;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--teal); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--teal); }
.nav-links a.active::after { width: 100%; }

.theme-toggle {
  background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; color: var(--text-secondary);
  background: var(--bg-secondary);
  transition: var(--transition);
}
.theme-toggle:hover { color: var(--teal); background: rgba(20,184,166,0.1); }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  width: 26px; height: 2px; background: var(--text-primary);
  border-radius: 4px; transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Mobile Nav --- */
.mobile-nav {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(var(--bg-primary), 0.98);
  backdrop-filter: blur(20px);
  flex-direction: column; align-items: center; justify-content: center; gap: 28px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.4rem; font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}
.mobile-nav a:hover { color: var(--teal); }

/* --- Hero Slider --- */
.hero-slider {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden; padding-top: var(--nav-height);
}
.slide {
  position: absolute; inset: 0;
  display: flex; align-items: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.slide.active { opacity: 1; visibility: visible; }
.slide-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: brightness(0.3);
  transform: scale(1.05);
  transition: transform 6s ease;
}
.slide.active .slide-bg { transform: scale(1); }
.slide-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(20,184,166,0.15) 100%);
}
.slide-content {
  position: relative; z-index: 2; max-width: 720px;
}
.slide-content .badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  color: var(--teal-light);
  background: rgba(20,184,166,0.12);
  border: 1px solid rgba(20,184,166,0.2);
  padding: 8px 18px; border-radius: 50px; margin-bottom: 20px;
}
.slide-content .badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal-light);
  animation: pulse-dot 2s ease-in-out infinite;
}
.slide-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.1;
  margin-bottom: 16px; color: #fff;
}
.slide-content h1 .highlight { color: var(--teal-light); }
.slide-content h1 .highlight-gold { color: var(--gold); }
.slide-content p {
  font-size: 1.1rem; color: rgba(255,255,255,0.7);
  max-width: 540px; margin-bottom: 32px; line-height: 1.8;
}
.slide-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.slider-nav {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 12px; z-index: 3;
}
.slider-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: rgba(255,255,255,0.25);
  border: none; cursor: pointer; transition: var(--transition);
}
.slider-dot.active { background: var(--teal); width: 36px; border-radius: 6px; }
.slider-arrows {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3; display: flex; justify-content: space-between;
  width: 100%; padding: 0 24px; pointer-events: none;
}
.slider-arrow {
  width: 50px; height: 50px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff; font-size: 1.2rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); pointer-events: auto;
}
.slider-arrow:hover { background: var(--teal); color: #fff; }

/* Hero Stats */
.hero-stats {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 16px;
  margin-top: 48px; max-width: 500px;
}
.hero-stat { text-align: center; }
.hero-stat-num {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--teal-light), var(--teal));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: 0.75rem; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

/* --- Page Banner --- */
.page-banner {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--navy) 0%, #0B1A2E 50%, #0D2137 100%);
  position: relative; overflow: hidden;
  text-align: center;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(20,184,166,0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 50%, rgba(245,158,11,0.06) 0%, transparent 50%);
}
.page-banner h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  color: #fff; margin-bottom: 12px; position: relative;
}
.page-banner p {
  color: rgba(255,255,255,0.6);
  max-width: 600px; margin: 0 auto; position: relative;
  font-size: 1.05rem;
}
.breadcrumb {
  display: flex; justify-content: center; gap: 10px;
  font-size: 0.85rem; color: rgba(255,255,255,0.4);
  margin-bottom: 16px; position: relative;
}
.breadcrumb a { color: var(--teal); }
.breadcrumb a:hover { color: var(--teal-light); }

/* --- Cards --- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(20,184,166,0.2);
}
.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 16px;
}

/* --- Grids --- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }

/* --- About Page --- */
.about-hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-image-frame {
  position: relative; border-radius: var(--radius-xl); overflow: hidden;
  aspect-ratio: 4/5;
}
.about-image-frame::before {
  content: ''; position: absolute; inset: -3px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--teal), var(--gold));
  z-index: -1; opacity: 0.5;
}
.about-image-frame img {
  width: 100%; height: 100%; object-fit: cover;
  border-radius: var(--radius-xl);
}

.about-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.about-info-item {
  display: flex; align-items: center; gap: 10px;
  color: var(--text-secondary); font-size: 0.9rem;
}
.about-info-item .icon { color: var(--teal); font-size: 1.1rem; }

/* --- Skills --- */
.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition);
}
.skill-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.skill-card-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(20,184,166,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 14px;
}
.skill-card h4 { font-size: 1.05rem; margin-bottom: 8px; }
.skill-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; }
.skill-bar-track {
  height: 5px; background: var(--gray-100);
  border-radius: 5px; overflow: hidden;
}
[data-theme="dark"] .skill-bar-track { background: var(--gray-700); }
.skill-bar-fill {
  height: 100%; border-radius: 5px;
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
  width: 0; transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}
.skill-bar-fill.animated { width: var(--w); }
.skill-bar-label { display: flex; justify-content: space-between; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 6px; }

/* --- Services --- */
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 36px 28px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
  transform: scaleX(0); transform-origin: left;
  transition: var(--transition);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(20,184,166,0.15); }
.service-num {
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--teal);
  letter-spacing: 2px; margin-bottom: 8px; font-weight: 600;
}
.service-card h4 { font-size: 1.15rem; margin-bottom: 12px; }
.service-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* --- Modules --- */
.module-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 24px;
  transition: var(--transition);
}
.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(20,184,166,0.15); }
.module-top { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.module-top .icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(20,184,166,0.08);
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0;
}
.module-card h4 { font-size: 1rem; font-weight: 600; }
.module-card p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }
.module-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.module-tag {
  font-size: 0.7rem; padding: 3px 10px; border-radius: 50px;
  background: rgba(20,184,166,0.06);
  color: var(--teal); border: 1px solid rgba(20,184,166,0.12);
}

/* --- Projects --- */
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition);
}
.project-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(20,184,166,0.1); }
.project-thumb {
  height: 220px; background: var(--bg-secondary);
  background-size: cover; background-position: center;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; position: relative; overflow: hidden;
}
.project-thumb::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(15,23,42,0.2) 0%, rgba(15,23,42,0.7) 100%);
  z-index: 0;
}
.project-body { padding: 24px; }
.project-body .tag {
  display: inline-block; font-size: 0.7rem; padding: 4px 12px; border-radius: 50px;
  background: rgba(20,184,166,0.08); color: var(--teal);
  border: 1px solid rgba(20,184,166,0.12); margin-bottom: 10px;
}
.project-body h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.project-body p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; }

/* --- Certifications --- */
.cert-card {
  display: flex; align-items: center; gap: 18px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 22px; transition: var(--transition);
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(20,184,166,0.12); }
.cert-icon {
  width: 50px; height: 50px; border-radius: 10px;
  background: rgba(245,158,11,0.08);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; flex-shrink: 0;
}
.cert-info h4 { font-size: 0.95rem; font-weight: 600; }
.cert-info p { font-size: 0.8rem; color: var(--text-secondary); margin-top: 2px; }

/* --- Testimonials Carousel --- */
.testimonials-section { background: var(--bg-secondary); }
.testimonials-carousel { position: relative; overflow: hidden; }
.testimonials-track { display: flex; transition: transform 0.6s ease; }
.testimonial-card {
  flex: 0 0 100%; padding: 0 12px;
}
.testimonial-inner {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 36px 32px;
}
.testimonial-inner .quote {
  font-size: 3rem; color: var(--teal); opacity: 0.15;
  font-family: Georgia, serif; line-height: 1; margin-bottom: -10px;
}
.testimonial-inner p {
  font-size: 0.95rem; color: var(--text-secondary); font-style: italic;
  margin: 16px 0 24px; line-height: 1.8;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem; color: #fff;
}
.testimonial-info strong { font-size: 0.92rem; display: block; }
.testimonial-info span { font-size: 0.8rem; color: var(--text-muted); }

.testimonial-controls {
  display: flex; justify-content: center; align-items: center;
  gap: 16px; margin-top: 32px;
}
.testimonial-btn {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--card-border); background: var(--card-bg);
  color: var(--text-primary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.testimonial-btn:hover { background: var(--teal); color: #fff; border-color: var(--teal); }
.testimonial-dots { display: flex; gap: 8px; }
.testimonial-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--gray-300); border: none; cursor: pointer; transition: var(--transition);
}
.testimonial-dot.active { background: var(--teal); width: 28px; border-radius: 5px; }

/* --- Blog --- */
.blog-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 28px; transition: var(--transition);
}
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(20,184,166,0.1); }
.blog-card .date {
  font-size: 0.78rem; color: var(--teal); margin-bottom: 10px;
  font-weight: 600; letter-spacing: 0.5px;
}
.blog-card h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; line-height: 1.4; }
.blog-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; }
.blog-card .read-more { font-size: 0.85rem; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }

/* --- FAQ --- */
.faq-section { background: var(--bg-secondary); }
.faq-item {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden;
}
.faq-question {
  padding: 20px 24px; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; font-size: 1rem;
  transition: var(--transition);
}
.faq-question:hover { background: rgba(20,184,166,0.03); }
.faq-question .icon {
  font-size: 1.2rem; transition: var(--transition); color: var(--teal);
}
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
}
.faq-item.open .faq-answer {
  max-height: 300px; padding: 0 24px 20px;
}
.faq-answer p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* --- Contact --- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
}
.contact-info h3 { font-size: 1.8rem; margin-bottom: 16px; }
.contact-info > p { color: var(--text-secondary); margin-bottom: 32px; }
.contact-item {
  display: flex; align-items: center; gap: 14px; margin-bottom: 18px;
  color: var(--text-secondary);
}
.contact-item .icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(20,184,166,0.06);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%; padding: 16px 20px; border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: var(--card-bg); color: var(--text-primary);
  font-family: var(--font-sans); font-size: 0.95rem;
  transition: var(--transition); outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(20,184,166,0.1);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form textarea { min-height: 150px; resize: vertical; }

/* --- Footer --- */
.footer {
  background: var(--footer-bg); color: var(--footer-text);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px;
}
.footer-brand h3 {
  font-size: 1.4rem; color: #fff; margin-bottom: 12px;
}
.footer-brand h3 span { color: var(--teal); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; }
.footer h4 { font-size: 0.95rem; color: #fff; margin-bottom: 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 0.88rem; color: var(--footer-text); }
.footer ul li a:hover { color: var(--teal); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 0.85rem; }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--footer-text); font-size: 0.9rem;
  transition: var(--transition);
}
.footer-socials a:hover { border-color: var(--teal); color: var(--teal); }

/* --- Floating WhatsApp --- */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.6rem;
  box-shadow: 0 4px 24px rgba(37,211,102,0.4);
  transition: var(--transition);
  animation: whatsapp-pulse 2s ease-in-out infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 40px rgba(37,211,102,0.5);
  color: #fff;
}
@keyframes whatsapp-pulse { 0%,100%{box-shadow:0 4px 24px rgba(37,211,102,0.4)} 50%{box-shadow:0 4px 40px rgba(37,211,102,0.6)} }

/* --- Back to Top --- */
.back-top {
  position: fixed; bottom: 90px; right: 24px; z-index: 998;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--teal); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer;
  opacity: 0; visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: none;
}
.back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }

/* --- Trust Badges --- */
.trust-bar {
  display: flex; justify-content: center; align-items: center;
  flex-wrap: wrap; gap: 40px; padding: 40px 0;
  opacity: 0.5;
}
.trust-bar span {
  font-size: 1rem; font-weight: 700; letter-spacing: 1px;
  color: var(--gray-400); text-transform: uppercase;
}

/* --- Counter --- */
.counter-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
  text-align: center;
}
.counter-item .num {
  font-size: 2.8rem; font-weight: 800;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.counter-item .label { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

/* --- Service Detail Page --- */
.service-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.service-detail-image {
  border-radius: var(--radius-xl); overflow: hidden;
  min-height: 420px;
  background-size: cover; background-position: center;
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem; position: relative;
}
.service-detail-image::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.6) 0%, rgba(20,184,166,0.2) 100%);
  z-index: 1;
}
.service-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.service-feature {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 0.9rem; color: var(--text-secondary);
}
.service-feature .check { color: var(--teal); font-weight: 700; font-size: 1.1rem; }
.process-steps { display: flex; flex-direction: column; gap: 16px; }
.process-step {
  display: flex; gap: 18px; align-items: flex-start;
}
.process-step .step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(20,184,166,0.1);
  color: var(--teal); font-weight: 700; font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.process-step h5 { font-size: 1rem; margin-bottom: 4px; }
.process-step p { font-size: 0.85rem; color: var(--text-secondary); }

/* --- CTA Section --- */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--navy) 0%, #0B1A2E 100%);
  text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(20,184,166,0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(245,158,11,0.08) 0%, transparent 50%);
}
.cta-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem); color: #fff; margin-bottom: 16px; position: relative;
}
.cta-section p { color: rgba(255,255,255,0.6); max-width: 560px; margin: 0 auto 32px; position: relative; font-size: 1.05rem; }
.cta-section .btn { position: relative; }

/* --- Scroll Animations --- */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.4,0,0.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.r-delay-1 { transition-delay: 0.1s; }
.r-delay-2 { transition-delay: 0.2s; }
.r-delay-3 { transition-delay: 0.3s; }
.r-delay-4 { transition-delay: 0.4s; }
.r-delay-5 { transition-delay: 0.5s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-2, .grid-3, .grid-4,
  .about-hero, .service-detail-grid, .contact-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .about-hero { text-align: center; }
  .about-info-grid { justify-items: center; }
  .hero-stats { max-width: 100%; justify-items: center; }
  .section-sub { margin-left: auto; margin-right: auto; text-align: center; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 60px 0; }
  .page-banner { padding: 120px 0 40px; }
  .hero-slider { min-height: 90vh; }
  .slider-arrows { display: none; }
  .hero-stats { grid-template-columns: repeat(2,1fr); }
  .counter-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .service-features { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .btn { width: 100%; justify-content: center; }
  .slide-actions { flex-direction: column; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-stats { grid-template-columns: repeat(2,1fr); gap: 8px; }
  .counter-grid { grid-template-columns: 1fr 1fr; }
}