/* ============================================================
   Tube.bg Premium Domain For Sale — Stylesheet
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #0ea5e9;
  --color-primary-dark: #0284c7;
  --color-primary-light: #38bdf8;
  --color-secondary: #0f172a;
  --color-secondary-light: #1e293b;
  --color-accent: #f0f9ff;
  --color-accent-mid: #e0f2fe;
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-error: #ef4444;
  --color-error-light: #fee2e2;
  --color-warning: #f59e0b;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;

  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2.5rem;
  }
}

/* --- Section Labels & Titles --- */
.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent);
  border: 1px solid var(--color-accent-mid);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.85rem;
  margin-bottom: 1rem;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1.2;
  margin-bottom: 1rem;
  text-align: center;
}

.section-title.text-left {
  text-align: left;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  max-width: 640px;
  margin: 0 auto 3rem;
  text-align: center;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

@media (min-width: 1024px) {
  .section-title {
    font-size: var(--font-size-5xl);
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  padding: 0.65rem 1.5rem;
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid transparent;
  white-space: nowrap;
  line-height: 1;
}

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

.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgb(14 165 233 / 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  background: var(--color-accent);
  transform: translateY(-1px);
}

.btn-large {
  font-size: var(--font-size-lg);
  padding: 0.875rem 2rem;
  border-radius: var(--radius-xl);
}

.btn-small {
  font-size: var(--font-size-sm);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
}

.btn-full {
  width: 100%;
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* --- Logo --- */
.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 900;
  color: var(--color-secondary);
  letter-spacing: -0.03em;
}

.logo-dot {
  color: var(--color-primary);
}

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

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

/* --- HEADER --- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-100);
  transition: box-shadow var(--transition);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgb(0 0 0 / 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 1024px) {
  .header-nav {
    display: flex;
  }
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-decoration: none;
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--color-primary);
  background: var(--color-accent);
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.header-cta {
  display: none;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

/* --- Mobile Menu Toggle --- */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  cursor: pointer;
  background: none;
  border: none;
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-xl);
  padding: 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  transition: all var(--transition-slow);
  pointer-events: none;
  z-index: 99;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-gray-700);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  display: block;
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-accent);
}

.mobile-cta {
  margin-top: 0.75rem;
  width: 100%;
}

/* --- HERO SECTION --- */
.hero {
  position: relative;
  padding: 5rem 0 4rem;
  overflow: hidden;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-accent) 50%, var(--color-accent-mid) 100%);
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.25);
  border-radius: var(--radius-full);
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 900;
  color: var(--color-secondary);
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-title-sub {
  font-size: clamp(1rem, 3vw, 1.75rem);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.hero-description {
  font-size: clamp(var(--font-size-base), 2.5vw, var(--font-size-xl));
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-description strong {
  color: var(--color-secondary);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-500);
}

.trust-item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .hero {
    padding: 7rem 0 6rem;
  }
}

/* --- STATS SECTION --- */
.stats-section {
  padding: 5rem 0;
  background: var(--color-gray-50);
  text-align: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
}

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

.stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  border-radius: var(--radius-lg);
  margin: 0 auto 1rem;
  color: var(--color-primary);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--color-secondary);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.stat-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
}

.stats-insights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .stats-insights {
    grid-template-columns: 1fr 1fr;
  }
}

.insight-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  text-align: left;
  transition: all var(--transition);
}

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

.insight-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  flex-shrink: 0;
}

.insight-content strong {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.35rem;
}

.insight-content p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* --- ADVANTAGES SECTION --- */
.advantages-section {
  padding: 5rem 0;
  background: var(--color-white);
  text-align: center;
}

.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.advantage-card {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}

.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.advantage-card--featured {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-white);
  transform: scale(1.02);
}

.advantage-card--featured:hover {
  transform: scale(1.02) translateY(-6px);
}

.advantage-featured-label {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.advantage-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-xl);
  margin: 0 auto 1.5rem;
  color: var(--color-primary);
  background: var(--color-accent);
}

.advantage-card--featured .advantage-icon {
  background: rgba(14, 165, 233, 0.2);
  color: var(--color-primary-light);
}

.advantage-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

.advantage-card--featured .advantage-title {
  color: var(--color-white);
}

.advantage-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.advantage-card--featured .advantage-desc {
  color: rgba(255, 255, 255, 0.75);
}

.advantage-highlight {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-accent);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.875rem;
}

.advantage-card--featured .advantage-highlight {
  background: rgba(14, 165, 233, 0.2);
  color: var(--color-primary-light);
}

/* --- IDEAS SECTION --- */
.ideas-section {
  padding: 5rem 0;
  background: var(--color-gray-50);
  text-align: center;
}

.ideas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .ideas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .ideas-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.idea-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  text-align: left;
  transition: all var(--transition);
  position: relative;
}

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

.idea-number {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: var(--font-size-xs);
  font-weight: 800;
  color: var(--color-gray-300);
  letter-spacing: 0.05em;
}

.idea-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  color: var(--color-primary);
}

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

.idea-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.idea-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-accent);
  border: 1px solid var(--color-accent-mid);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.65rem;
}

/* --- PROCESS SECTION --- */
.process-section {
  padding: 5rem 0;
  background: var(--color-white);
  text-align: center;
}

.process-timeline {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  display: flex;
  flex-direction: column;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  text-align: left;
  padding: 1.5rem;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
}

.process-step:hover {
  background: var(--color-accent);
  border-color: var(--color-primary-light);
}

.step-connector {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, var(--color-primary-light), transparent);
  margin: 0 auto;
  margin-left: calc(1.5rem + 24px);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-lg);
  font-weight: 800;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.step-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.35rem;
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.step-desc strong {
  color: var(--color-secondary);
  font-weight: 600;
}

.process-trust {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-mid));
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  text-align: left;
}

.process-trust-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(14, 165, 233, 0.15);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  flex-shrink: 0;
}

.process-trust-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

.process-trust-text strong {
  display: block;
  color: var(--color-secondary);
  font-size: var(--font-size-base);
  margin-bottom: 0.25rem;
}

/* --- FAQ SECTION --- */
.faq-section {
  padding: 5rem 0;
  background: var(--color-gray-50);
  text-align: center;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item[open] {
  border-color: var(--color-primary-light);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-secondary);
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: var(--font-size-xl);
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-question:hover {
  background: var(--color-accent);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* --- CONTACT SECTION --- */
.contact-section {
  padding: 5rem 0;
  background: var(--color-white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .contact-wrapper {
    grid-template-columns: 5fr 7fr;
  }
}

.contact-info {
  position: sticky;
  top: calc(var(--header-height) + 2rem);
}

.contact-description {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.contact-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

.contact-features li svg {
  color: var(--color-success);
  flex-shrink: 0;
}

.contact-min-offer {
  display: inline-block;
  background: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: 1.25rem 2rem;
}

.min-offer-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.25rem;
}

.min-offer-value {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1;
}

/* --- CONTACT FORM --- */
.contact-form-wrapper {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: 2.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

.required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-input:hover {
  border-color: var(--color-gray-400);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-input.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input.success {
  border-color: var(--color-success);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  font-weight: 500;
  min-height: 1rem;
}

/* Input with prefix */
.input-prefix-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 1rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-gray-400);
  pointer-events: none;
  z-index: 1;
}

.input-with-prefix {
  padding-left: 2rem;
}

/* Captcha */
.captcha-group .form-label {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.captcha-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.captcha-input {
  flex: 1;
  max-width: 160px;
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  flex-shrink: 0;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.checkbox-input:checked ~ .checkbox-custom {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-input:checked ~ .checkbox-custom::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translate(-1px, -1px);
}

.checkbox-input:focus-visible ~ .checkbox-custom {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.checkbox-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.5;
}

/* Submit button loading */
.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Success message */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--color-success-light);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
}

.success-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-success);
  border-radius: var(--radius-full);
  color: var(--color-white);
  flex-shrink: 0;
}

.success-content strong {
  display: block;
  color: #065f46;
  font-size: var(--font-size-base);
  margin-bottom: 0.25rem;
}

.success-content p {
  font-size: var(--font-size-sm);
  color: #047857;
  line-height: 1.6;
}

/* --- FOOTER --- */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255, 255, 255, 0.75);
  padding: 4rem 0 2rem;
}

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

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr 2fr;
  }
}

.footer-logo .logo-text {
  color: var(--color-white);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.footer-links-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1rem;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.footer-links-col a:hover {
  color: var(--color-primary-light);
}

.footer-links-col strong {
  color: rgba(255, 255, 255, 0.85);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1rem;
}

.footer-disclaimer {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.3);
  line-height: 1.6;
}

.footer-disclaimer strong {
  color: rgba(255, 255, 255, 0.5);
}

/* --- Utility --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
}