/* ===================================
   GPS-Auto.kz — Design System & Styles
   Variant B: Dark + Electric Green
   =================================== */

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

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --bg-primary:    #0a0a0a;
  --bg-secondary:  #111111;
  --bg-card:       #161616;
  --bg-card-hover: #1a1a1a;
  --border-color:  #222222;
  --border-accent: #1a3a1a;

  --text-primary:   #f0f0f0;
  --text-secondary: #999999;
  --text-muted:     #666666;

  --accent:         #00E676;
  --accent-dim:     #00c864;
  --accent-glow:    rgba(0, 230, 118, 0.15);
  --accent-glow-strong: rgba(0, 230, 118, 0.3);

  --danger:         #ff4c4c;
  --white:          #ffffff;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
  --gap: 24px;
  --gap-lg: 48px;
  --gap-xl: 80px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

/* ---------- Utility ---------- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-title .accent {
  color: var(--accent);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: var(--gap-xl);
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 30px var(--accent-glow-strong);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
}

.nav-logo span {
  color: var(--accent);
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

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

.nav-phone {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

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

/* Mobile Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===================================
   HERO
   =================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  0%   { opacity: 0.3; transform: scale(1); }
  100% { opacity: 0.6; transform: scale(1.1); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 230, 118, 0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 28px;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.hero-title .accent {
  color: var(--accent);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-graphic {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-graphic svg {
  width: 100%;
  max-width: 520px;
  height: auto;
}

/* Grid background pattern */
.grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 230, 118, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 118, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* ===================================
   STATS BAR
   =================================== */
.stats-bar {
  padding: 50px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
  text-align: center;
}

.stat-item {
  padding: 16px;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===================================
   ZIGZAG SECTIONS (How it works / How we work)
   =================================== */
.zigzag-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

.zigzag-row.reverse .zigzag-content {
  order: -1;
}

.zigzag-graphic {
  display: flex;
  align-items: center;
  justify-content: center;
}

.zigzag-graphic svg {
  width: 100%;
  max-width: 440px;
  height: auto;
}

.zigzag-content .section-title {
  margin-bottom: 24px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-glow);
  border: 1.5px solid rgba(0, 230, 118, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--accent);
}

.step-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   BENEFITS (RESULTS)
   =================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--accent);
  border-radius: 0 0 4px 4px;
  opacity: 0;
  transition: opacity var(--transition);
}

.benefit-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 230, 118, 0.06);
}

.benefit-card:hover::before {
  opacity: 1;
}

.benefit-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  color: var(--accent);
}

.benefit-value {
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
}

.benefit-label {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.benefit-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   PRICING
   =================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  transition: all var(--transition);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow);
}

.pricing-badge {
  position: absolute;
  top: -1px;
  right: 32px;
  background: var(--accent);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.pricing-price {
  margin-bottom: 8px;
}

.pricing-price .from {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pricing-price .amount {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.pricing-price .currency {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.pricing-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.pricing-card .btn {
  width: 100%;
}

/* ===================================
   EQUIPMENT
   =================================== */
.equipment-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  padding: 20px 0;
}

.equipment-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.equipment-item:hover {
  opacity: 1;
}

.equipment-item svg {
  width: 48px;
  height: 48px;
  color: var(--text-secondary);
}

.equipment-item span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ===================================
   CONTACT
   =================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: start;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-control::placeholder {
  color: var(--text-muted);
}

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

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info-header {
  margin-bottom: 8px;
}

.contact-info-header .section-title {
  margin-bottom: 12px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.contact-item:hover {
  border-color: var(--border-accent);
}

.contact-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.contact-item-icon svg {
  width: 22px;
  height: 22px;
}

.contact-item-text h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-item-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.contact-item-text a {
  color: var(--accent);
  font-weight: 600;
}

.contact-item-text a:hover {
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.social-link {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
}

/* ===================================
   SCROLL ANIMATIONS
   =================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===================================
   FORM FEEDBACK
   =================================== */
.form-success {
  display: none;
  text-align: center;
  padding: 32px;
}

.form-success.show {
  display: block;
}

.form-success svg {
  width: 56px;
  height: 56px;
  color: var(--accent);
  margin: 0 auto 16px;
}

.form-success h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.form-fields {
  display: block;
}

.form-fields.hidden {
  display: none;
}

/* ===================================
   COUNTER ANIMATION
   =================================== */
.counter {
  display: inline-block;
}

/* ===================================
   LANGUAGE SWITCHER
   =================================== */
.lang-switch {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 3px;
  cursor: pointer;
  font-family: var(--font-family);
  gap: 2px;
}

.lang-switch-option {
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: 50px;
  transition: all var(--transition-fast);
  letter-spacing: 0.05em;
  line-height: 1;
}

.lang-switch-option.active {
  background: var(--accent);
  color: var(--bg-primary);
}

.lang-switch-option:hover:not(.active) {
  color: var(--text-primary);
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
  }

  .hero-graphic {
    order: -1;
  }

  .hero-graphic svg {
    max-width: 380px;
  }

  .hero {
    min-height: auto;
    padding: 140px 0 60px;
  }

  .zigzag-row {
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
  }

  .zigzag-row.reverse .zigzag-content {
    order: 0;
  }

  .zigzag-graphic svg {
    max-width: 340px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
    --gap-xl: 48px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 999;
  }

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

  .nav-links a {
    font-size: 1.3rem;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-phone {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .equipment-strip {
    gap: 32px;
  }

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

  .footer .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .benefit-card {
    padding: 28px 20px;
  }

  .pricing-card {
    padding: 32px 24px;
  }

  .contact-form {
    padding: 24px;
  }
}