/* ============================================
   Dr. Raj Kumar Singh - Medical Website
   Design System
   ============================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  --primary: #0D6E6E;
  --primary-dark: #095454;
  --primary-light: #E8F5F5;
  --primary-glow: rgba(13, 110, 110, 0.08);
  --accent: #D4923A;
  --accent-dark: #B87A2E;
  --accent-light: #FFF3E0;
  --surface: #FFFFFF;
  --surface-alt: #F8FAFB;
  --text: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  background: var(--surface);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--primary-dark);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--surface-alt);
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); margin-bottom: 16px; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13, 110, 110, 0.3);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 146, 58, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--primary);
}

.btn-white:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.3);
}

/* --- Header / Navbar --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: var(--transition);
  height: var(--header-height);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 48px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.logo-text .subtitle {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Navigation --- */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
}

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

.nav .btn-nav {
  background: var(--primary);
  color: #fff;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
}

.nav .btn-nav:hover {
  background: var(--primary-dark);
  color: #fff;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--text);
  border-radius: 2px;
  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); }

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
  background: var(--primary-dark);
}

.hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content {
  max-width: 600px;
}

/* Split hero layout */
.hero-split-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 32px;
  align-items: center;
  min-height: calc(100vh - var(--header-height) - 80px);
}

.hero-media {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-media-frame {
  position: relative;
  width: 100%;
  max-width: 520px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.3);
  aspect-ratio: 3/4;
}

.hero-media-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.1);
  pointer-events: none;
}

.hero-media-frame video,
.hero-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-form-inner {
  background: #fff;
  padding: 28px;
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.hero-form-inner h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.hero-form-inner p {
  font-size: 0.8125rem;
  color: #374151 !important;
  margin-bottom: 12px;
}

.hero-form-inner .form-group {
  margin-bottom: 10px;
}

.hero-form-inner input,
.hero-form-inner textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s;
}

.hero-form-inner input:focus,
.hero-form-inner textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.hero-form-inner .field-error {
  display: none;
  font-size: 0.75rem;
  color: #DC2626;
  margin-top: 4px;
}

.hero-form-inner input.invalid,
.hero-form-inner textarea.invalid {
  border-color: #DC2626;
}

.hero-form-inner .field-error.show {
  display: block;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: #4ADE80;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  color: #fff;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  color: var(--accent);
}

.hero p {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats-tag {
  display: flex;
  gap: 32px;
  margin-top: 50px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,0.12);
}

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

.hero-stat-item .number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.hero-stat-item .label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
  cursor: default;
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.service-card h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.service-card .service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image::before {
  content: '';
  position: absolute;
  top: -16px;
  left: -16px;
  right: 16px;
  bottom: 16px;
  border: 2px solid var(--primary);
  border-radius: calc(var(--radius-lg) + 8px);
  z-index: -1;
  opacity: 0.3;
}

.about-qualifications {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.about-qualifications span {
  display: inline-flex;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* --- Stats Counter --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 60px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-plus {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* --- Why Choose Us --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.why-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.why-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.why-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.why-card h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 6px;
}

.why-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 0.875rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--primary);
  font-size: 0.875rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.875rem;
}

.testimonial-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(212,146,58,0.15) 0%, transparent 70%);
}

.cta-content {
  position: relative;
  text-align: center;
  padding: 80px 0;
}

.cta-content h2 {
  color: #fff;
  margin-bottom: 16px;
}

.cta-content p {
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 0 auto 32px;
  font-size: 1.0625rem;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-card h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.contact-card p,
.contact-card a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-form h3 {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: var(--transition);
  background: var(--surface-alt);
  color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: var(--surface);
}

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

.form-group .field-error {
  display: none;
  font-size: 0.75rem;
  color: #DC2626;
  margin-top: 4px;
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #DC2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.1);
}

.form-group .field-error.show {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* --- Map --- */
.map-container {
  margin-top: 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  display: block;
}

/* --- BMI Calculator (deprecated - now inline in tools/bmi-calculator.html) --- */

/* --- Footer --- */
.footer {
  background: #0F1A1E;
  color: rgba(255,255,255,0.7);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}

.footer h4 {
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.footer p {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-logo img {
  height: 48px;
  margin-bottom: 16px;
  filter: brightness(10);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

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

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.875rem;
}

.footer-contact-item .icon {
  color: var(--accent);
  min-width: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  font-size: 1rem;
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(212,146,58,0.1);
}

.footer-subscribe form {
  display: flex;
  gap: 8px;
}

.footer-subscribe input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 0.875rem;
}

.footer-subscribe input::placeholder {
  color: rgba(255,255,255,0.35);
}

.footer-subscribe input:focus {
  outline: none;
  border-color: var(--accent);
}

.footer-bottom {
  margin-top: 48px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 60px;
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
}

.page-header h1 {
  color: #fff;
  margin-bottom: 12px;
}

.page-header p {
  color: rgba(255,255,255,0.7);
  font-size: 1.0625rem;
  max-width: 500px;
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  font-size: 0.8125rem;
}

.breadcrumbs a {
  color: rgba(255,255,255,0.5);
}

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

.breadcrumbs span {
  color: rgba(255,255,255,0.3);
}

.breadcrumbs .current {
  color: var(--accent);
}

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item .overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.9);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: none;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
}

/* --- Services Detail --- */
.service-detail-hero {
  background: var(--primary-dark);
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 60px;
  color: #fff;
}

.service-detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.service-detail-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
}

.service-detail-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.service-detail-content ul {
  list-style: none;
  margin-bottom: 24px;
}

.service-detail-content ul li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text-secondary);
}

.service-detail-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* --- Mobile Responsive --- */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav a {
    width: 100%;
    padding: 12px 16px;
  }

  .hamburger {
    display: flex;
  }

  .section {
    padding: 60px 0;
  }

  .hero-split-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    min-height: auto;
    padding: 40px 0;
  }

  .hero-media {
    order: -1;
  }

  .hero-media-frame {
    max-width: 100%;
    aspect-ratio: 16/9;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-stats-tag {
    flex-wrap: wrap;
    gap: 20px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cta-content {
    padding: 60px 0;
  }

  .contact-form {
    padding: 24px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat-number {
    font-size: 2rem;
  }
}

/* --- Accessibility & Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  z-index: 10000;
  border-radius: 0 0 8px 8px;
}

.skip-link:focus {
  top: 0;
}

/* Floating Action Buttons */
.floating-btns {
  position: fixed;
  bottom: 24px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
  pointer-events: none;
}

.floating-btns a {
  pointer-events: auto;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

.floating-btns a:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(0,0,0,0.35);
}

.floating-btns .fab-phone {
  background: #0d9488;
  color: #fff;
}

.floating-btns .fab-whatsapp {
  background: #25D366;
  color: #fff;
}