/* ==============================
   ЭкоДрайв — Design Tokens & Styles
   ============================== */

:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Font families */
  --font-display: 'Cabinet Grotesk', 'Arial', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
}

/* ==============================
   Light Mode (Default)
   ============================== */
:root,
[data-theme='light'] {
  --color-bg: #F7F8F6;
  --color-surface: #FFFFFF;
  --color-surface-2: #F0F2EE;
  --color-surface-offset: #E8EBE5;
  --color-divider: #D4D9CF;
  --color-border: #C5CCBE;

  --color-text: #1A1D17;
  --color-text-muted: #5A6152;
  --color-text-faint: #94A088;
  --color-text-inverse: #F7F8F6;

  --color-primary: #16A34A;
  --color-primary-hover: #15803D;
  --color-primary-active: #166534;
  --color-primary-highlight: #DCFCE7;

  --color-hero-bg: #1A1D17;
  --color-hero-text: #F7F8F6;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 130 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 130 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 130 / 0.12);
}

/* ==============================
   Dark Mode
   ============================== */
[data-theme='dark'] {
  --color-bg: #141712;
  --color-surface: #1B1F18;
  --color-surface-2: #222720;
  --color-surface-offset: #1E2219;
  --color-divider: #2A2F26;
  --color-border: #353B30;

  --color-text: #D4D9CF;
  --color-text-muted: #8A9480;
  --color-text-faint: #5A6152;
  --color-text-inverse: #1A1D17;

  --color-primary: #4ADE80;
  --color-primary-hover: #22C55E;
  --color-primary-active: #16A34A;
  --color-primary-highlight: #1C3325;

  --color-hero-bg: #0D0F0B;
  --color-hero-text: #D4D9CF;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #141712;
    --color-surface: #1B1F18;
    --color-surface-2: #222720;
    --color-surface-offset: #1E2219;
    --color-divider: #2A2F26;
    --color-border: #353B30;
    --color-text: #D4D9CF;
    --color-text-muted: #8A9480;
    --color-text-faint: #5A6152;
    --color-text-inverse: #1A1D17;
    --color-primary: #4ADE80;
    --color-primary-hover: #22C55E;
    --color-primary-active: #16A34A;
    --color-primary-highlight: #1C3325;
    --color-hero-bg: #0D0F0B;
    --color-hero-text: #D4D9CF;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ==============================
   Layout
   ============================== */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-8);
  }
}

/* ==============================
   Header
   ============================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition: box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.logo-icon {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.header-nav {
  display: none;
  gap: var(--space-6);
  list-style: none;
}

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

.header-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-phone {
  display: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
}

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

.header-phone:hover {
  color: var(--color-primary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.theme-toggle:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 64px 0 0;
  background: var(--color-bg);
  z-index: 40;
  padding: var(--space-6) var(--space-4);
  flex-direction: column;
  gap: var(--space-2);
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
}

.mobile-menu a:hover,
.mobile-menu a:active {
  background: var(--color-surface-2);
  color: var(--color-primary);
}

.mobile-menu-phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

/* ==============================
   Hero
   ============================== */
.hero {
  position: relative;
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  min-height: 70vh;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: oklch(from var(--color-primary) l c h / 0.15);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
  max-width: 480px;
}

.hero-subtitle {
  font-size: var(--text-base);
  color: oklch(from var(--color-hero-text) l c h / 0.7);
  max-width: 480px;
  margin-bottom: var(--space-8);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==============================
   Buttons
   ============================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}

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

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

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

.btn-outline {
  background: transparent;
  border: 1px solid oklch(from var(--color-hero-text) l c h / 0.25);
  color: var(--color-hero-text);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-dark {
  border: 1px solid oklch(from var(--color-text) l c h / 0.2);
  color: var(--color-text);
  background: transparent;
}

.btn-outline-dark:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ==============================
   Section Helpers
   ============================== */
.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.section--alt {
  background: var(--color-surface-2);
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-10);
}

/* ==============================
   Services Grid
   ============================== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}

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

.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid oklch(from var(--color-text) l c h / 0.07);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==============================
   Repair Section
   ============================== */
.repair-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: start;
}

@media (min-width: 768px) {
  .repair-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.repair-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.repair-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.price-table {
  width: 100%;
  margin-top: var(--space-6);
}

.price-table th {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-3) 0;
  border-bottom: 2px solid var(--color-divider);
}

.price-table td {
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.price-table td:last-child {
  text-align: right;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

/* ==============================
   Rental Section
   ============================== */
.rental-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .rental-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.rental-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid oklch(from var(--color-text) l c h / 0.07);
}

.rental-card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.rental-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rental-card-body {
  padding: var(--space-6);
}

.rental-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.rental-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.rental-card-spec {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.rental-card-price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.rental-card-price-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.rental-conditions {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid oklch(from var(--color-text) l c h / 0.07);
  margin-top: var(--space-8);
}

.rental-conditions h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-5);
}

.conditions-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.conditions-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.conditions-list li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}

/* ==============================
   Buyback Section
   ============================== */
.buyback-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  counter-reset: step;
}

@media (min-width: 640px) {
  .buyback-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

.buyback-step {
  counter-increment: step;
  position: relative;
  padding-left: var(--space-12);
}

@media (min-width: 640px) {
  .buyback-step {
    padding-left: 0;
    padding-top: var(--space-10);
  }
}

.buyback-step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
}

@media (min-width: 640px) {
  .buyback-step::before {
    left: 0;
    top: 0;
  }
}

.buyback-step h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.buyback-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ==============================
   Why Us Section
   ============================== */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-item {
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.07);
}

.why-item-icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.why-item h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.why-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ==============================
   FAQ Section
   ============================== */
.faq-list {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.07);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: left;
  color: var(--color-text);
  gap: var(--space-4);
}

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

.faq-question svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  color: var(--color-text-muted);
}

.faq-item.active .faq-question svg {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==============================
   CTA Banner
   ============================== */
.cta-banner {
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  text-align: center;
  margin: var(--space-4);
}

@media (min-width: 768px) {
  .cta-banner {
    margin: var(--space-8);
  }
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.cta-banner p {
  color: oklch(from var(--color-hero-text) l c h / 0.7);
  margin-bottom: var(--space-6);
  max-width: 480px;
  margin-inline: auto;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

/* ==============================
   Contacts
   ============================== */
.contacts-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .contacts-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-info-icon svg {
  width: 20px;
  height: 20px;
}

.contact-info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.contact-info-value {
  font-weight: 600;
  font-size: var(--text-sm);
}

.contact-info-value a {
  color: var(--color-text);
  text-decoration: none;
}

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

.messenger-btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.messenger-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  min-height: 44px;
}

.messenger-btn--tg {
  background: #2AABEE;
}
.messenger-btn--tg:hover {
  background: #229ED9;
}

.messenger-btn--wa {
  background: #25D366;
}
.messenger-btn--wa:hover {
  background: #20BD5A;
}

.messenger-btn--phone {
  background: var(--color-primary);
}
.messenger-btn--phone:hover {
  background: var(--color-primary-hover);
}

.contacts-map {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface-2);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contacts-map iframe {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

/* ==============================
   Footer
   ============================== */
.footer {
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  padding: var(--space-10) 0 var(--space-6);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-hero-text);
  text-decoration: none;
}

.footer-logo .logo-icon {
  width: 28px;
  height: 28px;
}

.footer-logo .logo-text {
  font-size: var(--text-base);
}

.footer-copy {
  font-size: var(--text-xs);
  color: oklch(from var(--color-hero-text) l c h / 0.5);
}

/* ==============================
   Scroll Reveal
   ============================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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