/* ==========================================================================
   ADVAITA SUPERSPECIALITY DENTAL - MODERN DESIGN SYSTEM & STYLESHEET
   Location: Gokul Plots, Hyderabad | Call: 040-40185222, +91 79952 87584
   ========================================================================== */

:root {
  /* Color Palette */
  --primary: #0d9488;         /* Teal 600 */
  --primary-hover: #0f766e;   /* Teal 700 */
  --primary-dark: #115e59;    /* Teal 800 */
  --primary-light: #ccfbf1;   /* Teal 100 */
  --primary-subtle: #f0fdfa;  /* Teal 50 */
  
  --secondary: #0f172a;       /* Slate 900 */
  --secondary-light: #1e293b; /* Slate 800 */
  --accent: #f59e0b;          /* Amber 500 - Wedding & Smile Accent */
  --accent-hover: #d97706;    /* Amber 600 */
  
  --text-main: #1e293b;       /* Slate 800 */
  --text-muted: #64748b;      /* Slate 500 */
  --text-light: #94a3b8;      /* Slate 400 */
  --surface: #ffffff;
  --surface-alt: #f8fafc;     /* Slate 50 */
  --surface-card: #ffffff;
  --border: #e2e8f0;          /* Slate 200 */
  --border-focus: #0d9488;
  --error: #ef4444;           /* Red 500 */
  --success: #10b981;         /* Green 500 */

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.05);
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Layout */
  --container-max: 1240px;
  --header-height: 80px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--surface);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

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

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--secondary);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   LAYOUT UTILITIES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: 5rem;
}

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

.section-teal {
  background-color: var(--primary-subtle);
}

.section-dark {
  background-color: var(--secondary);
  color: #fff;
}

.section-title-wrap {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-badge-amber {
  background: #fef3c7;
  color: #92400e;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--secondary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

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

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.section-dark .section-desc {
  color: var(--text-light);
}

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.45);
}

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

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

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

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

.btn-outline-white {
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  background: transparent;
}

.btn-outline-white:hover {
  background-color: #fff;
  color: var(--secondary);
}

.btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1.125rem;
}

/* --------------------------------------------------------------------------
   TOP CONTACT BAR
   -------------------------------------------------------------------------- */
.top-bar {
  background-color: var(--secondary);
  color: #e2e8f0;
  font-size: 0.85rem;
  padding-block: 0.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: #cbd5e1;
}

.top-bar-item a {
  color: #fff;
  font-weight: 500;
}

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

.top-bar-badge {
  background: rgba(13, 148, 136, 0.2);
  color: #5eead4;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   MAIN NAVBAR
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header-scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

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

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

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

.brand-logo .brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.brand-logo .brand-subtitle {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.25rem;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

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

/* Dropdown Menu */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: -20px;
  background: var(--surface);
  min-width: 280px;
  padding: 0.75rem 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 1050;
  display: grid;
}

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

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.dropdown-link:hover {
  background-color: var(--primary-subtle);
  color: var(--primary-hover);
  padding-left: 1.5rem;
}

.dropdown-icon {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  padding: 0.5rem;
  color: var(--secondary);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, #f0fdfa 0%, #ffffff 50%, #f8fafc 100%);
  padding-block: 4rem 5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.hero-title {
  font-size: clamp(2.35rem, 4.5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--secondary);
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--primary);
  position: relative;
}

.hero-desc {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

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

.hero-stat-item h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.hero-stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-media {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 4px solid #fff;
}

.hero-image-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.hero-floating-badge {
  position: absolute;
  bottom: 25px;
  left: -25px;
  background: #fff;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--border);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-floating-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-floating-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--secondary);
}

.hero-floating-text p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   SPECIALITIES / SERVICES CARDS
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.25rem 2rem;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(13, 148, 136, 0.4);
}

.service-card.highlight {
  border-color: var(--accent);
  background: linear-gradient(180deg, #fffbeb 0%, #ffffff 100%);
}

.service-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-card.highlight .service-icon-wrap {
  background: #fef3c7;
  color: #d97706;
}

.service-card:hover .service-icon-wrap {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}

.service-card.highlight:hover .service-icon-wrap {
  background: var(--accent);
  color: #fff;
}

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

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

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
}

.service-card-link:hover {
  gap: 0.65rem;
  color: var(--primary-hover);
}

/* --------------------------------------------------------------------------
   DOCTOR SPOTLIGHT SECTION
   -------------------------------------------------------------------------- */
.doctor-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 4rem;
}

.doctor-media {
  position: relative;
}

.doctor-img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 4px solid #fff;
  background: var(--primary-light);
}

.doctor-img-wrap img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.doctor-badge-exp {
  position: absolute;
  top: 25px;
  right: -20px;
  background: var(--secondary);
  color: #fff;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.doctor-badge-exp span {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}

.doctor-badge-exp small {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
}

.doctor-content .section-badge {
  margin-bottom: 0.75rem;
}

.doctor-name {
  font-size: clamp(2rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.35rem;
}

.doctor-degrees {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.doctor-bio {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.doctor-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.doctor-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.doctor-highlight-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.doctor-highlight-item h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.2rem;
}

.doctor-highlight-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   WHY CHOOSE US / FEATURES
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.feature-box {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-box h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.feature-box p {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   TESTIMONIALS SECTION
   -------------------------------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
}

.testimonial-stars {
  display: flex;
  gap: 3px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-main);
  font-style: italic;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-info h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--secondary);
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   APPOINTMENT & CONTACT BANNER
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--secondary) 0%, #1e3a5f 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 4rem 3rem;
  position: relative;
  overflow: hidden;
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.cta-banner h2 {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.cta-banner p {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   FORMS & INPUTS (Modern Web Guidance Compliant)
   -------------------------------------------------------------------------- */
.form-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  margin-bottom: 1.35rem;
  width: 100%;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--secondary);
}

.form-label .req {
  color: var(--error);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-color: #fff;
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--border-focus);
  outline: 3px solid rgba(13, 148, 136, 0.25);
}

/* User-invalid pattern from Modern Web Guidance */
.form-control:user-invalid {
  border-color: var(--error);
  background-color: #fef2f2;
}

.form-hint {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  width: 100%;
}

/* --------------------------------------------------------------------------
   MODAL / DIALOG (Modern Web Guidance Compliant)
   -------------------------------------------------------------------------- */
dialog.modal {
  margin: auto;
  border: none;
  border-radius: var(--radius-xl);
  padding: 0;
  box-shadow: var(--shadow-xl);
  max-width: 580px;
  width: 90%;
  background: var(--surface);
  position: fixed;
  inset: 0;
  z-index: 2000;
}

dialog.modal::backdrop {
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--secondary);
}

.modal-close {
  padding: 0.5rem;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--surface-alt);
  color: var(--secondary);
}

.modal-body {
  padding: 2rem;
  max-height: 80vh;
  overflow-y: auto;
}

/* --------------------------------------------------------------------------
   GALLERY GRID & LIGHTBOX
   -------------------------------------------------------------------------- */
.gallery-filter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--surface);
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--surface-alt);
  cursor: pointer;
  group: true;
}

.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.gallery-overlay h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.gallery-overlay span {
  font-size: 0.8rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--secondary);
  color: #cbd5e1;
  padding-top: 5rem;
  padding-bottom: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-brand img {
  height: 44px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #94a3b8;
}

.footer-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-heading::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.925rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 0.35rem;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: #94a3b8;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-item a {
  color: #e2e8f0;
}

.footer-contact-item a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   FLOATING ACTION BUTTONS (CALL & WHATSAPP)
   -------------------------------------------------------------------------- */
.floating-actions {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 1000;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
}

.floating-btn:hover {
  transform: scale(1.1);
  color: #fff;
}

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

.floating-btn.phone {
  background-color: var(--primary);
}

/* --------------------------------------------------------------------------
   RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid,
  .doctor-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-media,
  .doctor-media {
    max-width: 500px;
    margin-inline: auto;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .top-bar-info {
    font-size: 0.75rem;
  }
  
  .top-bar-item:nth-child(2) {
    display: none;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    border-bottom: 1px solid var(--border);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    display: none;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    display: none;
  }

  .nav-item.dropdown-open .nav-dropdown {
    display: block;
  }

  .nav-toggle {
    display: block;
  }

  .nav-cta {
    display: none;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-floating-badge {
    left: 10px;
    bottom: 10px;
  }

  .doctor-badge-exp {
    right: 10px;
    top: 10px;
  }

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

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

  .cta-banner {
    padding: 2.5rem 1.5rem;
  }
}