@import url('fonts.css');

/* Global Resets */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette - Dark Premium */
  --bg-main: #0a0f1d;
  --bg-surface: #131b2e;
  --bg-surface-hover: #1c2742;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(239, 68, 68, 0.15);
  
  --primary: #ef4444; /* Sporty Red */
  --primary-hover: #dc2626;
  --primary-glow: rgba(239, 68, 68, 0.4);
  
  --success: #10b981; /* Emerald Green */
  --success-glow: rgba(16, 185, 129, 0.3);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --glass-bg: rgba(19, 27, 46, 0.92);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-blur: 6px;
  
  /* Layout & Transitions */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

input, button, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
}

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

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-surface-hover);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

.text-accent {
  color: var(--primary);
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-red-gradient {
  background: linear-gradient(135deg, #ff6b6b 0%, #ef4444 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Glassmorphism Panel */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  gap: 10px;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.5);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(10, 15, 29, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  will-change: backdrop-filter;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  transition: var(--transition-normal);
}

.header.scrolled .header-inner {
  padding: 10px 0;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, #7f1d1d 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 10px var(--primary-glow);
}

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

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-subtitle {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.phone-link {
  display: flex;
  flex-direction: column;
  text-align: right;
}

.phone-num {
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 1.05rem;
  white-space: nowrap;
}

.phone-desc {
  font-size: 0.7rem;
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.phone-desc::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--success);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

.header-messengers {
  display: flex;
  gap: 8px;
  align-items: center;
}

.messenger-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.03);
}

.messenger-icon svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.messenger-icon.tg {
  color: #0088cc;
  border-color: rgba(0, 136, 204, 0.2);
}

.messenger-icon.wa {
  color: #25d366;
  border-color: rgba(37, 211, 102, 0.2);
}

.messenger-icon.vb {
  color: #735F97;
  border-color: rgba(115, 95, 151, 0.2);
}

.messenger-icon.tg:hover {
  background-color: #0088cc;
  border-color: #0088cc;
  color: #fff;
  box-shadow: 0 4px 10px rgba(0, 136, 204, 0.4);
}

.messenger-icon.wa:hover {
  background-color: #25d366;
  border-color: #25d366;
  color: #fff;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.4);
}

.messenger-icon.vb:hover {
  background-color: #735F97;
  border-color: #735F97;
  color: #fff;
  box-shadow: 0 4px 10px rgba(115, 95, 151, 0.4);
}

@media (max-width: 480px) {
  .header-right .header-messengers {
    display: none !important;
  }
}

.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  font-size: 0.8rem;
  font-weight: 600;
}

.lang-btn {
  padding: 6px 10px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  transition: var(--transition-fast);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #fff;
  transition: var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
  padding: 180px 0 120px;
  position: relative;
  background-color: var(--bg-main);
  background-image: linear-gradient(to right, #0a0f1d 35%, rgba(10, 15, 29, 0.7) 60%, rgba(10, 15, 29, 0.1) 100%), url('../images/hero_diagnostics.png');
  background-repeat: no-repeat;
  background-position: center right;
  background-size: cover;
}

.hero-content {
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Dynamic Stats Grid */
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 50px;
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
}

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

.stat-val {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
}

.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Hero YouTube Video Widget */
.hero-video-wrapper {
  position: relative;
}

.hero-video-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  aspect-ratio: 16 / 9;
  cursor: pointer;
}

.hero-video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.hero-video-card:hover .hero-video-thumbnail {
  transform: scale(1.05);
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 15, 29, 0.8) 0%, rgba(10, 15, 29, 0.2) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
}

.play-btn-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background-color: rgba(239, 68, 68, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  box-shadow: 0 0 30px var(--primary-glow);
  transition: var(--transition-normal);
  padding-left: 5px; /* Adjust for triangle centering */
}

.hero-video-card:hover .play-btn-glow {
  background-color: #ef4444;
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 0 40px rgba(239, 68, 68, 0.8);
}

.video-lbl {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.video-lbl::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
}

.video-title {
  font-size: 1.15rem;
  font-weight: 700;
}

/* Sections Styling */
.section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  padding: 40px 30px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(239, 68, 68, 0.3);
  box-shadow: 0 10px 30px rgba(239, 68, 68, 0.05);
}

.service-icon-box {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.75rem;
  margin-bottom: 24px;
  transition: var(--transition-fast);
}

.service-card:hover .service-icon-box {
  background-color: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-link span {
  transition: var(--transition-fast);
}

.service-card:hover .service-link span {
  transform: translateX(4px);
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.pricing-card {
  padding: 45px 35px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pricing-card.featured {
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: 0 15px 35px rgba(239, 68, 68, 0.1);
}

.badge-featured {
  position: absolute;
  top: 20px;
  right: -30px;
  background-color: var(--primary);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 30px;
  transform: rotate(45deg);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.pricing-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.pricing-cost {
  margin-bottom: 30px;
}

.price-val {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.price-lbl {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 35px;
  flex-grow: 1;
}

.pricing-features li {
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pricing-features li svg {
  color: var(--success);
  flex-shrink: 0;
  margin-top: 3px;
}

/* YouTube Cases Section */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.case-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  transition: var(--transition-normal);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(239, 68, 68, 0.25);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.case-image-box {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  cursor: pointer;
}

.case-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

/* Lazy loading: placeholder state */
.case-thumb.lazy-img {
  background: linear-gradient(110deg, #111827 30%, #1e2a3a 50%, #111827 70%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.case-card:hover .case-thumb {
  transform: scale(1.06);
}

.case-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 15, 29, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
}

.case-card:hover .case-play-overlay {
  opacity: 1;
}

.case-play-btn {
  width: 50px;
  height: 50px;
  background-color: #ef4444;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 0 20px var(--primary-glow);
  padding-left: 3px;
}

.case-info {
  padding: 24px;
}

.case-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.case-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  font-size: 0.85rem;
}

.meta-lbl {
  color: var(--text-secondary);
  font-size: 0.75rem;
  display: block;
}

.meta-val {
  font-weight: 600;
  color: #fff;
}

.meta-val.green {
  color: var(--success);
}

/* Quiz Section */
.quiz-box {
  max-width: 750px;
  margin: 0 auto;
  padding: 40px;
}

.quiz-progress-bar {
  height: 6px;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  margin-bottom: 40px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, #ff6b6b 100%);
  width: 25%;
  transition: var(--transition-normal);
}

.quiz-step {
  display: none;
}

.quiz-step.active {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

.quiz-step-title {
  font-size: 1.8rem;
  margin-bottom: 28px;
}

.quiz-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 35px;
}

.quiz-option {
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: rgba(255, 255, 255, 0.01);
  transition: var(--transition-fast);
}

.quiz-option:hover {
  background-color: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.quiz-option.active {
  border-color: var(--primary);
  background-color: rgba(239, 68, 68, 0.06);
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.05);
}

.quiz-radio-dummy {
  width: 20px;
  height: 20px;
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.quiz-option.active .quiz-radio-dummy {
  border-color: var(--primary);
}

.quiz-option.active .quiz-radio-dummy::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background-color: var(--primary);
  border-radius: 50%;
}

.quiz-option-text {
  font-weight: 500;
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 25px;
}

/* Form Group inside quiz */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  color: #fff;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

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

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 24px 0;
}

.faq-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.15rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  background: none;
  border: none;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: var(--primary);
  color: var(--primary);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-content-inner {
  padding-top: 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Video Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background-color: rgba(10, 15, 29, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  width: 90%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  position: relative;
  background-color: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal.active .modal-container {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: -45px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-close-btn:hover {
  color: var(--primary);
}

.iframe-container {
  width: 100%;
  height: 100%;
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Footer */
.footer {
  background-color: rgba(6, 9, 17, 0.95);
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 50px;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand-desc {
  color: var(--text-secondary);
  margin-top: 16px;
  font-size: 0.9rem;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links-col h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.footer-link {
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-contacts-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contacts-col h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.footer-phone-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.social-icon {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-icon:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 10px var(--primary-glow);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 16px;
}

/* Animations */
@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
  .hero {
    background-image: linear-gradient(to top, rgba(10, 15, 29, 0.98) 40%, rgba(10, 15, 29, 0.7) 100%), url('../images/hero_diagnostics.png');
    background-position: center;
    padding: 140px 0 80px;
  }
  .hero-content {
    text-align: center;
    margin: 0 auto;
    max-width: 100%;
  }
  .hero-content h1 {
    font-size: 3rem;
  }
  .hero-content p {
    margin: 0 auto 30px;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .services-grid, .pricing-grid, .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }
  .nav-menu.active {
    display: flex;
  }
  .mobile-messengers-menu {
    display: flex !important;
  }
  .menu-toggle {
    display: flex;
  }
  .services-grid, .pricing-grid, .cases-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 120px 0 60px !important;
  }
  .hero-content h1 {
    font-size: 2.3rem;
  }
  .section {
    padding: 70px 0 !important;
  }
  .section-header {
    margin-bottom: 40px !important;
  }
  .quiz-options-grid {
    grid-template-columns: 1fr;
  }
  .quiz-box {
    padding: 20px;
  }
}

/* Floating Calculator Button */
.floating-calc-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--primary-glow);
  z-index: 99;
  transition: var(--transition-normal);
  animation: float-pulse 2s infinite;
}

.floating-calc-btn:hover {
  transform: scale(1.1);
  background-color: var(--primary-hover);
  box-shadow: 0 6px 25px rgba(239, 68, 68, 0.6);
}

@keyframes float-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(239, 68, 68, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

/* Filter Bar styles (for cases.html) */
.filter-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.filter-btn {
  padding: 10px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* Catalog Card Transitions */
.cases-grid .case-card {
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
}

.cases-grid .case-card.is-hidden {
  opacity: 0;
  transform: scale(0.9) translateY(20px);
  position: absolute;
  pointer-events: none;
  visibility: hidden;
  width: 0;
  height: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  border: none;
}



/* ==========================================================================
   Video Cover Overlay Styles (Bespoke premium YouTube covers)
   ========================================================================== */

.case-video-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
  transition: var(--transition-normal);
}

.case-video-title-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 50px 20px 20px;
  background: linear-gradient(to top, rgba(10, 15, 29, 0.95) 0%, rgba(10, 15, 29, 0.4) 60%, transparent 100%);
  color: #fff;
  z-index: 2;
  transition: var(--transition-normal);
  text-align: left;
}

.case-video-title-overlay h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.case-video-title-overlay span {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-top: 5px;
}




/* ==========================================================================
   Video Cover Overlay Styles (Bespoke premium YouTube covers)
   ========================================================================== */

.case-video-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
  transition: var(--transition-normal);
}

.case-video-title-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 50px 20px 20px;
  background: linear-gradient(to top, rgba(10, 15, 29, 0.95) 0%, rgba(10, 15, 29, 0.4) 60%, transparent 100%);
  color: #fff;
  z-index: 2;
  transition: var(--transition-normal);
  text-align: left;
}

.case-video-title-overlay h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.case-video-title-overlay span {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-top: 5px;
}

/* Custom Play Button overrides for cases */
.case-image-box .case-play-overlay {
  background: rgba(10, 15, 29, 0.15);
  opacity: 0.85; /* always visible */
  z-index: 1;
}

.case-image-box:hover .case-play-overlay {
  opacity: 1;
  background: rgba(10, 15, 29, 0.4);
}

.case-image-box .case-play-btn {
  width: 54px;
  height: 54px;
  background-color: var(--primary);
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.5);
  transition: var(--transition-normal);
  z-index: 4;
}

.case-image-box:hover .case-play-btn {
  transform: scale(1.15);
  box-shadow: 0 0 35px rgba(239, 68, 68, 0.8);
}

/* Dynamic Catalog Filters */
.category-filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.brand-filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding: 0 10px;
}

.filter-btn .btn-count {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  transition: var(--transition-fast);
  margin-left: 4px;
}

.filter-btn:hover .btn-count,
.filter-btn.active .btn-count {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Video Card Details */
.video-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background-color: rgba(10, 15, 29, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
  z-index: 2;
}

/* Dynamic Badge Category Styling */
.case-video-badge.badge-podbor {
  background-color: var(--primary);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.case-video-badge.badge-blog {
  background-color: #3b82f6;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.case-video-badge.badge-junk {
  background-color: #f97316;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

/* Mobile Responsive Adjustments for Dynamic Filters */
@media (max-width: 768px) {
  .category-filter-bar,
  .brand-filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center !important;
    gap: 10px 8px;
    padding: 10px 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  .category-filter-bar .filter-btn,
  .brand-filter-bar .filter-btn {
    padding: 8px 16px !important;
    font-size: 0.85rem !important;
  }
}

/* Mobile Header, Hero, and Layout Optimization */
@media (max-width: 768px) {
  .phone-num {
    font-size: 0.95rem !important;
  }
  .header-right {
    gap: 12px !important;
  }
  .hero-content h1 {
    font-size: 2rem !important;
  }
  .logo-subtitle {
    display: none !important;
  }
  .logo-icon {
    width: 38px !important;
    height: 38px !important;
    font-size: 1.15rem !important;
    border-radius: 6px !important;
  }
  .logo-title {
    font-size: 1.15rem !important;
  }
  .logo-box {
    gap: 8px !important;
  }
  .header-inner {
    gap: 10px !important;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 12px !important;
  }
  .hero {
    padding: 100px 0 40px !important;
  }
  .section {
    padding: 50px 0 !important;
  }
  .section-header {
    margin-bottom: 30px !important;
  }
  .logo-icon {
    width: 34px !important;
    height: 34px !important;
    font-size: 1rem !important;
  }
  .logo-title {
    font-size: 1.05rem !important;
  }
  .phone-num {
    font-size: 0.92rem !important;
  }
  .phone-desc {
    font-size: 0.65rem !important;
  }
  .lang-btn {
    padding: 4px 6px !important;
    font-size: 0.72rem !important;
  }
  .header-right {
    gap: 6px !important;
  }
  .menu-toggle {
    width: 36px !important;
    height: 31px !important;
    padding: 8px !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
  }
  .menu-toggle span {
    height: 2px !important;
  }
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg) !important;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg) !important;
  }
  .btn {
    padding: 12px 22px !important;
    font-size: 0.9rem !important;
  }
  .hero-content h1 {
    font-size: 1.55rem !important;
    line-height: 1.25 !important;
  }
  .hero-content p {
    font-size: 0.95rem !important;
    margin-bottom: 24px !important;
  }
  .hero-stats {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 20px 12px !important;
    padding-top: 20px !important;
    margin-top: 30px !important;
  }
  .stat-item {
    flex: 1 1 120px !important;
    text-align: center !important;
    align-items: center !important;
  }
  .stat-val {
    font-size: 1.5rem !important;
    line-height: 1.2 !important;
  }
  .stat-lbl {
    font-size: 0.72rem !important;
    line-height: 1.3 !important;
  }
  .category-filter-bar,
  .brand-filter-bar {
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding: 5px 0 !important;
    gap: 8px 6px !important;
  }
  .category-filter-bar .filter-btn,
  .brand-filter-bar .filter-btn {
    padding: 6px 12px !important;
    font-size: 0.8rem !important;
  }
  .contacts-grid .glass-panel {
    padding: 24px 16px !important;
  }
}

@media (max-width: 400px) {
  .phone-num {
    font-size: 0.85rem !important;
  }
  .phone-desc {
    font-size: 0.6rem !important;
  }
  .header-right {
    gap: 6px !important;
  }
  .logo-title {
    font-size: 1rem !important;
  }
}

/* Contacts Section Grid */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
  align-items: start;
}

@media (max-width: 991px) {
  .contacts-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* Subpages Responsive Overrides */
@media (max-width: 768px) {
  .section h1[style*="font-size: 3rem"] {
    font-size: 2.2rem !important;
  }
  .section h2[style*="font-size: 2rem"] {
    font-size: 1.6rem !important;
  }
  .section[style*="padding: 140px"] {
    padding: 100px 0 40px !important;
  }
}

@media (max-width: 480px) {
  .section h1[style*="font-size: 3rem"] {
    font-size: 1.7rem !important;
  }
}

/* Subpage grid layout responsiveness */
@media (max-width: 991px) {
  .section .container > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
  }
  .section .container > div[style*="grid-template-columns"] > div[style*="sticky"] {
    position: static !important;
  }
}

/* Mobile Language Switcher Styles */
.mobile-only-lang {
  display: none !important;
}

@media (max-width: 768px) {
  .header-right .lang-switch {
    display: none !important;
  }
  .nav-menu .mobile-only-lang {
    display: flex !important;
    margin-top: 15px;
    align-self: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
  }
  .nav-menu .mobile-only-lang .lang-btn {
    padding: 10px 20px !important;
    font-size: 0.9rem !important;
  }
}

/* Top Language Banner */
.lang-banner {
  width: 100%;
  background-color: #131b2e; /* dark premium surface */
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  position: relative;
  z-index: 101;
  box-sizing: border-box;
}

.lang-banner-content {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.85rem;
}

.lang-banner-text {
  color: var(--text-secondary);
  font-weight: 600;
}

.lang-banner-actions {
  display: flex;
  gap: 8px;
}

.lang-banner-btn {
  padding: 6px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
}

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

.lang-banner-btn.primary:hover {
  background-color: var(--primary-hover);
}

.lang-banner-btn.secondary {
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.lang-banner-btn.secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.lang-banner-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  padding: 4px;
}

.lang-banner-close:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .lang-banner {
    padding: 8px 16px;
  }
}

@media (max-width: 576px) {
  .lang-banner {
    flex-direction: row;
    align-items: center;
    padding: 8px 12px;
    gap: 8px;
  }
  .lang-banner-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    flex-grow: 1;
  }
  .lang-banner-text {
    font-size: 0.78rem;
    text-align: left;
  }
  .lang-banner-close {
    align-self: center;
  }
}

/* ============================================================
   MOBILE PERFORMANCE: Disable expensive effects on small screens
   backdrop-filter is very GPU-heavy on mobile CPUs → causes scroll lag
   ============================================================ */
@media (max-width: 768px) {
  /* Remove backdrop-filter from all glass panels on mobile */
  .glass-panel {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(19, 27, 46, 0.97) !important;
  }

  /* Keep header blur but reduce it significantly */
  .header.scrolled {
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
  }

  /* Reduce transition duration for snappier scroll feel */
  * {
    transition-duration: 0.15s !important;
  }

  /* But keep skeleton shimmer animation normal */
  .case-thumb.lazy-img {
    animation-duration: 1.4s !important;
    transition-duration: 0s !important;
  }
}