/* ==========================================================================
   HANMANTRAVELS.RU — Design System & Main Stylesheet
   Theme: High-Aesthetics Modern B2B Corporate (Dark / Light Mode)
   ========================================================================== */

:root {
  /* Dark Mode Palette (Default) */
  --bg-main-dark: #080c17;
  --bg-secondary-dark: #0f172a;
  --card-bg-dark: rgba(15, 23, 42, 0.75);
  --card-border-dark: rgba(255, 255, 255, 0.08);
  --card-hover-border-dark: rgba(245, 158, 11, 0.4);
  --text-primary-dark: #f8fafc;
  --text-secondary-dark: #94a3b8;
  --text-muted-dark: #64748b;

  /* Vibrant Accents */
  --accent-gold: #f59e0b;
  --accent-gold-hover: #d97706;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);
  
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-blue-glow: rgba(59, 130, 246, 0.25);

  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-red: #ef4444;

  /* Light Mode Palette */
  --bg-main-light: #f8fafc;
  --bg-secondary-light: #ffffff;
  --card-bg-light: #ffffff;
  --card-border-light: #e2e8f0;
  --card-hover-border-light: var(--accent-gold);
  --text-primary-light: #0f172a;
  --text-secondary-light: #475569;
  --text-muted-light: #94a3b8;

  /* Fonts */
  --font-heading: 'Space Grotesk', 'Segoe UI', 'Trebuchet MS', 'Impact', sans-serif;
  --font-body: 'Plus Jakarta Sans', 'Segoe UI', -apple-system, BlinkMacSystemFont, Arial, sans-serif;

  /* Layout Constants */
  --container-max-width: 1280px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-main: var(--bg-main-light);
  --bg-secondary: var(--bg-secondary-light);
  --card-bg: var(--card-bg-light);
  --card-border: var(--card-border-light);
  --card-hover-border: var(--card-hover-border-light);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --text-muted: var(--text-muted-light);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
  --bg-main: var(--bg-main-dark);
  --bg-secondary: var(--bg-secondary-dark);
  --card-bg: var(--card-bg-dark);
  --card-border: var(--card-border-dark);
  --card-hover-border: var(--card-hover-border-dark);
  --text-primary: var(--text-primary-dark);
  --text-secondary: var(--text-secondary-dark);
  --text-muted: var(--text-muted-dark);
  --glass-bg: rgba(8, 12, 23, 0.85);
  --shadow-card: 0 15px 35px rgba(0, 0, 0, 0.35);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

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

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
.font-heading {
  font-family: var(--font-heading);
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-gold) 60%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #0f172a 0%, #d97706 60%, #b45309 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-gold);
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
}

.section-header {
  margin-bottom: 50px;
}

.section-header.text-center {
  text-align: center;
}

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

/* Header & Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar .container {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-gold), #d97706);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: #000;
  box-shadow: 0 4px 15px var(--accent-gold-glow);
}

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

.logo-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.logo-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-gold);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-gold);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold), #d97706);
  color: #000;
  box-shadow: 0 4px 20px var(--accent-gold-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(245, 158, 11, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
}

.btn-outline-gold:hover {
  background: rgba(245, 158, 11, 0.1);
  transform: translateY(-2px);
}

.toggle-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.toggle-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* Hero Section */
.hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

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

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 20px;
  backdrop-filter: blur(10px);
}

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

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.hero-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 4px;
  text-transform: uppercase;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--card-border);
}

.hero-image-wrapper img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.hero-badge-overlay {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-badge-info h4 {
  font-size: 0.95rem;
  color: #fff;
  font-weight: 700;
}

.hero-badge-info p {
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

/* Sections Styling */
.section {
  padding: 90px 0;
  position: relative;
}

.bg-secondary-theme {
  background-color: var(--bg-secondary);
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-5px);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Why 0 Rubles Section */
.reason-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Russia Market Context Section */
.market-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 3px solid var(--accent-gold);
}

.market-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.reason-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-gold);
  opacity: 0.8;
  margin-bottom: 12px;
}

/* Calculator Component */
.calculator-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

[data-theme="light"] .form-control {
  background: #f1f5f9;
}

.form-control:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-glow);
}

.calc-result-box {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
}

.calc-price-tag {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent-gold);
  margin: 10px 0;
}

.calc-details-list {
  list-style: none;
  text-align: left;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.calc-details-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-details-list li::before {
  content: "✓";
  color: var(--accent-green);
  font-weight: 800;
}

/* Trade Matrix & Tabs */
.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 24px;
  border-radius: 30px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  background: linear-gradient(135deg, var(--accent-gold), #d97706);
  color: #000;
  border-color: transparent;
}

.trade-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.trade-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Legal Workflow Steps */
.step-card {
  position: relative;
}

.step-number {
  position: absolute;
  top: -15px;
  right: 20px;
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(245, 158, 11, 0.15);
}

/* Contact Modal & Toast */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #10b981;
  color: #fff;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  z-index: 2000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
.footer {
  background-color: #050811;
  border-top: 1px solid var(--card-border);
  padding: 60px 0 30px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3, .grid-4, .grid-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}