/* ============================================
   RePurchase - Electronic Component Recycling
   Dark Tech-Industrial Theme
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #0a1628;
  --bg-secondary: #111d2e;
  --bg-card: #152238;
  --bg-card-hover: #1a2a45;
  --accent-cyan: #00e5c3;
  --accent-cyan-dim: rgba(0, 229, 195, 0.15);
  --accent-cyan-glow: rgba(0, 229, 195, 0.4);
  --accent-blue: #3b82f6;
  --accent-blue-dim: rgba(59, 130, 246, 0.15);
  --text-primary: #e8edf5;
  --text-secondary: #8899b0;
  --text-muted: #5a6b80;
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(0, 229, 195, 0.3);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-en: 'Inter', sans-serif;
  --font-zh: 'Noto Sans SC', sans-serif;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

html[lang="zh"] body,
html[lang="zh-CN"] body {
  font-family: var(--font-zh);
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.3s var(--ease-out);
}

a:hover {
  color: #33ffda;
}

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

/* --- Language Toggle --- */
html[lang="en"] .lang-zh,
html[lang="en"] .lang-zh * {
  display: none !important;
}

html[lang="zh"] .lang-en,
html[lang="zh"] .lang-en *,
html[lang="zh-CN"] .lang-en,
html[lang="zh-CN"] .lang-en * {
  display: none !important;
}

/* --- Utility --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  padding: 6px 16px;
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 229, 195, 0.2);
  border-radius: 100px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

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

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: background 0.3s, box-shadow 0.3s;
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo svg {
  width: 32px;
  height: 32px;
}

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

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.3s, background 0.3s;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
}

.lang-switch {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.lang-switch button {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent-cyan);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary:hover {
  background: #33ffda;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-cyan-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  font-family: inherit;
  white-space: nowrap;
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

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

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

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

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

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-cyan-dim) 0%, transparent 70%);
  animation: pulse-glow 8s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-blue-dim) 0%, transparent 70%);
  animation: pulse-glow 10s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

/* Circuit Grid Pattern */
.circuit-grid {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    linear-gradient(var(--accent-cyan) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent-cyan) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Animated Circuit Traces */
.circuit-traces {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.circuit-traces svg {
  position: absolute;
  width: 100%;
  height: 100%;
}

.trace-line {
  fill: none;
  stroke: var(--accent-cyan);
  stroke-width: 1.5;
  stroke-dasharray: 200 600;
  stroke-linecap: round;
  opacity: 0.3;
  animation: trace-flow 12s linear infinite;
}

.trace-line:nth-child(2) {
  stroke: var(--accent-blue);
  stroke-dasharray: 150 700;
  animation-duration: 16s;
  animation-delay: -4s;
  opacity: 0.2;
}

.trace-line:nth-child(3) {
  stroke-dasharray: 100 800;
  animation-duration: 20s;
  animation-delay: -8s;
  opacity: 0.15;
}

@keyframes trace-flow {
  0% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -800; }
}

/* Circuit Nodes */
.circuit-node {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  opacity: 0;
  animation: node-pulse 4s ease-in-out infinite;
}

.circuit-node::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--accent-cyan);
  opacity: 0.3;
  animation: node-ring 4s ease-in-out infinite;
}

@keyframes node-pulse {
  0%, 100% { opacity: 0; transform: scale(0.5); }
  50% { opacity: 0.6; transform: scale(1); }
}

@keyframes node-ring {
  0%, 100% { transform: scale(1); opacity: 0; }
  50% { transform: scale(2); opacity: 0.3; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 229, 195, 0.2);
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

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

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent-cyan);
  position: relative;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
}

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

.hero-buttons .btn-primary {
  padding: 14px 32px;
  font-size: 0.95rem;
}

.hero-buttons .btn-secondary {
  padding: 14px 32px;
  font-size: 0.95rem;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.hero-stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-cyan);
  letter-spacing: -0.02em;
}

.hero-stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan-dim), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.service-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all 0.4s var(--ease-out);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(0, 229, 195, 0.08);
  background: var(--bg-card-hover);
}

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

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-cyan-dim);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  color: var(--accent-cyan);
}

.service-icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.service-card .service-subtitle {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 12px;
}

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

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.service-tag {
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 100px;
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-us {
  background: var(--bg-primary);
  position: relative;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-card {
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all 0.4s var(--ease-out);
  text-align: center;
}

.why-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(0, 229, 195, 0.08);
}

.why-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: var(--accent-cyan-dim);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
}

.why-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.why-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
  background: var(--bg-secondary);
  position: relative;
}

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

/* Connecting Line */
.process-steps::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-cyan));
  opacity: 0.2;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  background: var(--bg-card);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  position: relative;
  z-index: 2;
  transition: all 0.4s var(--ease-out);
}

.process-step:hover .step-number {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 30px var(--accent-cyan-glow);
}

.step-icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.process-step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 220px;
  margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background: var(--bg-primary);
  position: relative;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-mission {
  padding: 24px;
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 229, 195, 0.15);
  border-radius: var(--radius-md);
  margin-top: 24px;
}

.about-mission p {
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.4s var(--ease-out);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-unit {
  font-size: 1rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:hover,
.faq-item.active {
  border-color: var(--border-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.3s;
  font-family: inherit;
  gap: 16px;
}

.faq-question:hover {
  background: var(--bg-card-hover);
}

.faq-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent-cyan);
  transition: transform 0.3s var(--ease-out);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  background: var(--bg-card);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
  background: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

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

.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.error-msg {
  font-size: 0.75rem;
  color: #ef4444;
  display: none;
}

.form-group input.error ~ .error-msg,
.form-group textarea.error ~ .error-msg {
  display: block;
}

.file-upload {
  position: relative;
  padding: 24px;
  background: var(--bg-card);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
}

.file-upload:hover {
  border-color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

.file-upload input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--text-muted);
}

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

.file-upload-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.3s;
}

.contact-info-card:hover {
  border-color: var(--border-hover);
}

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

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

.contact-info-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.map-placeholder {
  width: 100%;
  height: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.5;
}

.form-success {
  display: none;
  padding: 16px 20px;
  background: rgba(0, 229, 195, 0.1);
  border: 1px solid rgba(0, 229, 195, 0.3);
  border-radius: var(--radius-md);
  color: var(--accent-cyan);
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.footer-col ul a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all 0.3s;
}

.footer-social a:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section-padding {
    padding: 64px 0;
  }

  /* Mobile Nav */
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease-out);
    z-index: 999;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .nav-links a {
    padding: 14px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--border-color);
    border-radius: 0;
  }

  .nav-actions {
    margin-left: 0;
    margin-top: 24px;
    width: 100%;
    flex-direction: column;
  }

  .nav-actions .btn-primary {
    width: 100%;
    justify-content: center;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Hero */
  .hero h1 {
    font-size: clamp(1.8rem, 7vw, 2.6rem);
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

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

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

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* Why Us */
  .why-grid {
    grid-template-columns: 1fr;
  }

  /* Process */
  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .process-steps::before {
    display: none;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ============================================
   LANGUAGE SWITCHER DROPDOWN
   ============================================ */
.lang-switcher {
  position: relative;
  z-index: 100;
}

.lang-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  white-space: nowrap;
  font-family: var(--font-en);
}

.lang-trigger:hover {
  border-color: var(--accent-cyan-dim);
  background: var(--bg-card-hover);
}

.lang-chevron {
  transition: transform 0.3s var(--ease-out);
}

.lang-trigger.open .lang-chevron {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.3s var(--ease-out);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  max-height: 360px;
  overflow-y: auto;
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switch-btn {
  display: block;
  width: 100%;
  padding: 8px 14px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
  font-family: var(--font-en);
}

.lang-switch-btn:hover {
  background: var(--accent-cyan-dim);
  color: var(--text-primary);
}

.lang-switch-btn.active {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ============================================
   HERO LOGISTICS BADGE
   ============================================ */
.hero-logistics {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 8px 18px;
  background: var(--accent-blue-dim);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 100px;
  font-size: 13px;
  color: var(--accent-blue);
  letter-spacing: 0.3px;
}

/* ============================================
   GLOBAL COVERAGE SECTION
   ============================================ */
.global {
  background: var(--bg-secondary);
  position: relative;
}

.global::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan-dim), transparent);
}

.global-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.global-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.global-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 229, 195, 0.08);
}

.global-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.global-flag {
  font-size: 28px;
  line-height: 1;
}

.global-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.global-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.global-logistics {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.global-logistics-label {
  font-size: 13px;
  color: var(--accent-cyan);
  font-weight: 500;
}

/* ============================================
   CONTACT FORM ENHANCEMENTS
   ============================================ */
.contact-form select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-en);
  transition: all 0.3s var(--ease-out);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238899b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.contact-form select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

.contact-form select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.file-upload {
  position: relative;
  padding: 32px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  background: rgba(255, 255, 255, 0.02);
}

.file-upload:hover {
  border-color: var(--accent-cyan-dim);
  background: var(--accent-cyan-dim);
}

.file-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.file-upload-text {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.file-upload-hint {
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================
   RTL SUPPORT (Arabic)
   ============================================ */
html[dir="rtl"] .nav-links {
  direction: rtl;
}

html[dir="rtl"] .lang-dropdown {
  right: auto;
  left: 0;
}

html[dir="rtl"] .lang-switch-btn {
  text-align: right;
}

html[dir="rtl"] .hero-buttons .btn-primary svg {
  transform: rotate(180deg);
}

html[dir="rtl"] .faq-chevron {
  margin-left: 0;
  margin-right: auto;
}

html[dir="rtl"] .faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

html[dir="rtl"] .contact-form select {
  background-position: left 14px center;
  padding-right: 16px;
  padding-left: 40px;
}

html[dir="rtl"] .process-steps {
  direction: rtl;
}

/* ============================================
   GLOBAL COVERAGE RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .global-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .global-grid {
    grid-template-columns: 1fr;
  }

  .hero-logistics {
    font-size: 12px;
    padding: 6px 14px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .lang-switcher {
    order: -1;
  }
}

@media (max-width: 480px) {
  .global-card {
    padding: 20px;
  }
}