@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700;800;900&display=swap');

:root {
  --bg-dark: #070a13;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --bg-input: rgba(15, 23, 42, 0.8);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.15);
  --primary-cold: #009ee2;
  --primary-cold-glow: rgba(0, 158, 226, 0.25);
  --primary-heat: #ff4e20;
  --primary-heat-glow: rgba(255, 78, 32, 0.25);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #0ea5e9;
  --accent-orange: #f97316;
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-dark);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Ambient Glows */
.ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
  transition: var(--transition-smooth);
}

.glow-cold {
  top: -100px;
  left: -100px;
  background-color: var(--primary-cold);
}

.glow-heat {
  top: 600px;
  right: -100px;
  background-color: var(--primary-heat);
}

.glow-center {
  bottom: 20%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--primary-cold) 0%, var(--primary-heat) 100%);
  width: 600px;
  height: 600px;
  opacity: 0.08;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 5px;
  border: 2px solid var(--bg-dark);
}

::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-cold {
  background: linear-gradient(135deg, #38bdf8 0%, var(--primary-cold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-heat {
  background: linear-gradient(135deg, #fdba74 0%, var(--primary-heat) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(7, 10, 19, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

header.scrolled {
  background: rgba(7, 10, 19, 0.9);
  padding: 0.5rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

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

.logo-icon {
  width: 48px;
  height: 48px;
}

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

.logo-title {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: 0.05em;
}

.logo-subtitle {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
}

.nav-cta {
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.65rem 1.5rem;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(0, 158, 226, 0.2);
  transition: var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 78, 32, 0.35);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 900;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 550px;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.9rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-smooth);
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 25px rgba(0, 158, 226, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 78, 32, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 3rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

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

.stat-number {
  font-family: var(--font-title);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-backdrop {
  position: absolute;
  width: 110%;
  height: 110%;
  background: radial-gradient(circle, rgba(0, 158, 226, 0.08) 0%, rgba(255, 78, 32, 0.05) 50%, transparent 100%);
  filter: blur(40px);
  z-index: 0;
}

.logo-display {
  width: 320px;
  height: 320px;
  position: relative;
  z-index: 2;
  animation: logo-float 6s ease-in-out infinite;
  filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.4));
}

@keyframes logo-float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(1deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

.device-border-glow {
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.06);
  animation: rotation-border 30s linear infinite;
  pointer-events: none;
}

@keyframes rotation-border {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Sections General */
section {
  padding: 7.5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 5rem auto;
  position: relative;
  z-index: 2;
}

.section-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15rem;
  color: var(--primary-cold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  line-height: 1.2;
}

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

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3rem 2.25rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  transition: var(--transition-smooth);
}

.service-card.cold::before {
  background: linear-gradient(90deg, var(--primary-cold) 0%, #06b6d4 100%);
}

.service-card.heat::before {
  background: linear-gradient(90deg, #f97316 0%, var(--primary-heat) 100%);
}

.service-card.dual::before {
  background: linear-gradient(90deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-card.cold:hover {
  box-shadow: 0 20px 40px rgba(0, 158, 226, 0.08);
}

.service-card.heat:hover {
  box-shadow: 0 20px 40px rgba(255, 78, 32, 0.08);
}

.service-card.dual:hover {
  box-shadow: 0 20px 40px rgba(139, 92, 246, 0.06);
}

.service-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  position: relative;
}

.service-card.cold .service-icon-wrapper {
  background: rgba(0, 158, 226, 0.06);
  color: var(--primary-cold);
}

.service-card.heat .service-icon-wrapper {
  background: rgba(255, 78, 32, 0.06);
  color: var(--primary-heat);
}

.service-card.dual .service-icon-wrapper {
  background: rgba(139, 92, 246, 0.06);
  color: #8b5cf6;
}

.service-icon {
  width: 32px;
  height: 32px;
}

.service-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.service-card-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.service-list {
  list-style: none;
  margin-bottom: 2.5rem;
}

.service-list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

.service-list-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.service-card.cold .service-list-icon {
  color: var(--primary-cold);
}

.service-card.heat .service-list-icon {
  color: var(--primary-heat);
}

.service-card.dual .service-list-icon {
  color: #8b5cf6;
}

.service-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: auto;
  transition: var(--transition-fast);
}

.service-card.cold .service-card-btn { color: var(--primary-cold); }
.service-card.heat .service-card-btn { color: var(--primary-heat); }
.service-card.dual .service-card-btn { color: var(--text-primary); }

.service-card-btn:hover {
  gap: 0.85rem;
}

/* Diagnostic Assistant */
.diagnostic-section {
  background: radial-gradient(100% 100% at 50% 0%, rgba(15, 23, 42, 0.5) 0%, rgba(7, 10, 19, 0) 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.diagnostic-container {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3.5rem;
  position: relative;
  z-index: 2;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.diagnostic-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.diagnostic-tab-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.85rem 1.5rem;
  border-radius: 12px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.diagnostic-tab-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.diagnostic-tab-btn.active {
  background: var(--text-primary);
  color: var(--bg-dark);
  border-color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.15);
}

.diagnostic-tab-btn.active.cold {
  background: var(--primary-cold);
  color: var(--text-primary);
  border-color: var(--primary-cold);
  box-shadow: 0 4px 15px var(--primary-cold-glow);
}

.diagnostic-tab-btn.active.heat {
  background: var(--primary-heat);
  color: var(--text-primary);
  border-color: var(--primary-heat);
  box-shadow: 0 4px 15px var(--primary-heat-glow);
}

.diagnostic-tab-btn.active.dual {
  background: #8b5cf6;
  color: var(--text-primary);
  border-color: #8b5cf6;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.25);
}

.diagnostic-form-group {
  margin-bottom: 2.5rem;
}

.diagnostic-label {
  display: block;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.symptom-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.symptom-card {
  background: rgba(7, 10, 19, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.symptom-card:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.02);
}

.symptom-radio {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.symptom-radio::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  transition: var(--transition-fast);
}

.symptom-card.selected {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

.diagnostic-panel.cold .symptom-card.selected {
  border-color: var(--primary-cold);
  background: rgba(0, 158, 226, 0.04);
}
.diagnostic-panel.cold .symptom-card.selected .symptom-radio {
  border-color: var(--primary-cold);
}
.diagnostic-panel.cold .symptom-card.selected .symptom-radio::after {
  background: var(--primary-cold);
}

.diagnostic-panel.heat .symptom-card.selected {
  border-color: var(--primary-heat);
  background: rgba(255, 78, 32, 0.04);
}
.diagnostic-panel.heat .symptom-card.selected .symptom-radio {
  border-color: var(--primary-heat);
}
.diagnostic-panel.heat .symptom-card.selected .symptom-radio::after {
  background: var(--primary-heat);
}

.diagnostic-panel.dual .symptom-card.selected {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.04);
}
.diagnostic-panel.dual .symptom-card.selected .symptom-radio {
  border-color: #8b5cf6;
}
.diagnostic-panel.dual .symptom-card.selected .symptom-radio::after {
  background: #8b5cf6;
}

.symptom-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.symptom-card.selected .symptom-text {
  color: var(--text-primary);
}

.diagnostic-result {
  margin-top: 3rem;
  background: rgba(7, 10, 19, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.25rem;
  display: none;
  animation: fade-in-up 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.diagnostic-panel.cold .result-title { color: var(--primary-cold); }
.diagnostic-panel.heat .result-title { color: var(--primary-heat); }
.diagnostic-panel.dual .result-title { color: #8b5cf6; }

.result-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}

/* Portfolio Section */
.gallery-filter {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
  list-style: none;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.6rem 1.25rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 15px rgba(0, 158, 226, 0.25);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #0f172a;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.gallery-item.hide {
  display: none;
}

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

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(7, 10, 19, 0) 40%, rgba(7, 10, 19, 0.9) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.gallery-item:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

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

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

.gallery-item-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-cold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.gallery-item-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.gallery-media-icon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(7, 10, 19, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  z-index: 2;
  transition: var(--transition-fast);
}

.gallery-item:hover .gallery-media-icon {
  background: var(--text-primary);
  color: var(--bg-dark);
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 10, 19, 0.95);
  backdrop-filter: blur(12px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content-wrapper {
  max-width: 90vw;
  max-height: 80vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-media {
  max-width: 100%;
  max-height: 75vh;
  border-radius: 12px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  object-fit: contain;
}

.lightbox-caption {
  margin-top: 1.5rem;
  text-align: center;
}

.lightbox-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.lightbox-category {
  font-size: 0.85rem;
  color: var(--primary-cold);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lightbox-close:hover {
  color: var(--primary-heat);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
}

.lightbox-prev { left: -80px; }
.lightbox-next { right: -80px; }

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-card-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 3.5rem;
}

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

.contact-info-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-cold);
  flex-shrink: 0;
}

.contact-info-icon {
  width: 24px;
  height: 24px;
}

.contact-info-details {
  display: flex;
  flex-direction: column;
}

.contact-info-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.contact-info-value {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

a.contact-info-value:hover {
  color: var(--text-primary);
}

.social-links-wrapper {
  margin-top: auto;
}

.social-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.social-grid {
  display: flex;
  gap: 1rem;
}

.social-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.social-btn:hover {
  background: linear-gradient(135deg, var(--primary-cold) 0%, var(--primary-heat) 100%);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 158, 226, 0.2);
}

.contact-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.85rem 1.25rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-cold);
  box-shadow: 0 0 0 3px rgba(0, 158, 226, 0.15);
  background: var(--bg-card-hover);
}

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

.btn-submit {
  width: 100%;
  border: none;
  cursor: pointer;
}

/* Floating WhatsApp Widget */
.whatsapp-widget {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
}

.whatsapp-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  transition: var(--transition-smooth);
  position: relative;
}

.whatsapp-btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid #25d366;
  top: 0;
  left: 0;
  animation: pulse-ring 1.8s cubic-bezier(0.455, 0.03, 0.515, 0.955) infinite;
  opacity: 0;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

.whatsapp-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
}

.whatsapp-btn-icon {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

/* Footer */
footer {
  background: #04060c;
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 3rem 0;
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

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

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  margin-bottom: 1.5rem;
}

.footer-brand-description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 320px;
}

.footer-links-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-link-item a:hover {
  color: var(--text-primary);
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.footer-contact-icon {
  width: 18px;
  height: 18px;
  color: var(--primary-cold);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.25rem;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid .service-card.dual {
    grid-column: span 2;
  }
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .ambient-glow {
    width: 300px;
    height: 300px;
  }
  
  .nav-menu {
    position: fixed;
    top: 75px;
    left: 0;
    width: 100%;
    height: calc(100vh - 75px);
    background: rgba(7, 10, 19, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 3rem 2rem;
    gap: 2rem;
    transform: translateX(-100%);
    transition: var(--transition-smooth);
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .menu-toggle {
    display: block;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: center;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
    gap: 2rem;
  }
  
  .hero-visual {
    order: 2;
  }
  
  .logo-display {
    width: 240px;
    height: 240px;
  }
  
  .section-title {
    font-size: 2.25rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .services-grid .service-card.dual {
    grid-column: span 1;
  }
  
  .diagnostic-container {
    padding: 2rem 1.5rem;
  }
  
  .diagnostic-tabs {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .symptom-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .lightbox-nav {
    display: none;
  }
  
  .contact-form-container {
    padding: 2rem 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}