/* ==========================================================================
   Sichuan Zhongcheng Rongxin Technology Co., Ltd.
   Style Guide — Dark Theme | Cyan + Purple Accents
   ========================================================================== */

/* --- CSS Custom Properties --- */
:root {
  /* Backgrounds */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2035;
  --bg-card-hover: #222a3f;
  --bg-input: #0f1523;

  /* Accent — Cyan */
  --accent-primary: #00d4ff;
  --accent-secondary: #0099cc;
  --accent-glow: rgba(0, 212, 255, 0.25);

  /* Accent — Purple */
  --purple: #7c3aed;
  --purple-light: #a78bfa;
  --purple-glow: rgba(124, 58, 237, 0.25);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Borders */
  --border-color: #1e293b;
  --border-active: #334155;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #111827 50%, #0a0e17 100%);
  --gradient-cyan: linear-gradient(135deg, #00d4ff, #0099cc);
  --gradient-purple: linear-gradient(135deg, #7c3aed, #a78bfa);
  --gradient-cyan-purple: linear-gradient(135deg, #00d4ff, #7c3aed);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.15);
  --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.15);

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--purple-light);
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--gradient-cyan);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  background: var(--gradient-cyan-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

.text-gradient {
  background: var(--gradient-cyan-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
  padding: 0 24px;
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.95);
  border-bottom-color: rgba(0, 212, 255, 0.1);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-cyan);
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 900;
  color: #0a0e17;
}

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

.nav-logo span {
  background: var(--gradient-cyan-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-base);
}

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

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-primary);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--gradient-cyan);
  color: #0a0e17 !important;
  font-weight: 700;
  border-radius: 8px;
  font-size: 0.85rem;
  transition: all var(--transition-base);
}

.nav-cta:hover {
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
  color: #0a0e17 !important;
}

.nav-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

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

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

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

/* --- Language Toggle --- */
.lang-toggle {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-primary) !important;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.lang-toggle:hover {
  background: rgba(0, 212, 255, 0.2);
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
  transform: translateY(-1px);
}

.lang-toggle::after {
  display: none !important;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-cyan);
  color: #0a0e17;
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
  color: #0a0e17;
}

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

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}

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

.btn-purple:hover {
  box-shadow: var(--shadow-glow-purple);
  transform: translateY(-2px);
  color: #fff;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08), transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.06), transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
}

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

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
  max-width: 480px;
}

.hero-grid-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition-base);
}

.hero-grid-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.hero-grid-item .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.hero-grid-item h4 {
  font-size: 1rem;
  color: var(--accent-primary);
  margin-bottom: 6px;
}

.hero-grid-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: float-down 2s ease-in-out infinite;
}

@keyframes float-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Sections Shared --- */
section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

/* --- Services Section --- */
.services {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 36px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-cyan);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-cyan);
}

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

.service-card .icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-features {
  padding: 0;
}

.service-features li {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 6px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.service-features li::before {
  content: '›';
  color: var(--accent-primary);
  font-weight: 900;
  font-size: 1.1rem;
}

/* --- Stats Section --- */
.stats {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

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

.stat-item h3 {
  font-size: 2.8rem;
  font-weight: 900;
  background: var(--gradient-cyan-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* --- About Preview Section --- */
.about-preview .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-preview-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.about-preview-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.about-preview-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-card-small {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
}

.about-card-small h4 {
  font-size: 1.8rem;
  font-weight: 900;
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.about-card-small p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- CTA Section --- */
.cta {
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.cta p {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 300px;
}

.footer h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-cyan);
}

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

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-base);
}

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

.footer-contact li {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-contact .contact-icon {
  color: var(--accent-primary);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

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

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

/* --- Page Header --- */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.06), transparent 70%);
  pointer-events: none;
}

.page-header h1 {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- About Page --- */
.about-mission {
  background: var(--bg-primary);
}

.about-mission .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-mission-text h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.about-mission-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

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

.about-mission-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.about-mission-stat h3 {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.about-mission-stat p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Values */
.values {
  background: var(--bg-secondary);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition-base);
}

.value-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-purple);
}

.value-card .icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.value-card h3 {
  margin-bottom: 12px;
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* Expertise */
.expertise {
  background: var(--bg-primary);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.expertise-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px 24px;
  transition: all var(--transition-base);
}

.expertise-item:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-2px);
}

.expertise-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.expertise-text h4 {
  margin-bottom: 6px;
}

.expertise-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Team (no real names) */
.team {
  background: var(--bg-secondary);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition-base);
}

.team-card:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-4px);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-cyan-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}

.team-card h4 {
  margin-bottom: 4px;
}

.team-card .role {
  color: var(--accent-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.team-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* --- Services Page --- */
.services-page {
  background: var(--bg-primary);
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 36px 32px;
  transition: all var(--transition-base);
}

.service-detail-card:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.service-detail-card .icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.service-detail-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.service-detail-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-detail-card ul li {
  color: var(--text-muted);
  font-size: 0.88rem;
  padding: 5px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.service-detail-card ul li::before {
  content: '✓';
  color: var(--accent-primary);
  font-weight: 700;
}

/* Process */
.process {
  background: var(--bg-secondary);
}

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

.process-step {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  position: relative;
  transition: all var(--transition-base);
}

.process-step:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
}

.process-step .step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-weight: 800;
  font-size: 1.1rem;
  color: #0a0e17;
}

.process-step h4 {
  margin-bottom: 8px;
}

.process-step p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.7;
}

/* --- Contact Page --- */
.contact-section {
  background: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
}

.contact-form-wrapper h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.contact-form-wrapper > p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

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

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all var(--transition-base);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group .error-msg {
  display: none;
  color: #ef4444;
  font-size: 0.82rem;
  margin-top: 4px;
}

.form-group .error-msg.show {
  display: block;
}

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

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

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

.form-success .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.form-success h3 {
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-muted);
}

/* Contact Info */
.contact-info h2 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-detail-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-detail-item .cd-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-detail-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

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

/* Map placeholder */
.map-placeholder {
  width: 100%;
  height: 300px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.map-placeholder .map-icon {
  font-size: 2.5rem;
}

/* --- Legal Pages (Privacy & Terms) --- */
.legal-content {
  background: var(--bg-primary);
  padding: 80px 0;
}

.legal-content .container {
  max-width: 860px;
}

.legal-content .last-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.legal-section {
  margin-bottom: 36px;
}

.legal-section h2 {
  font-size: 1.4rem;
  color: var(--accent-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
}

.legal-section h3 {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 10px;
  margin-top: 20px;
}

.legal-section p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.legal-section ul,
.legal-section ol {
  padding-left: 24px;
  margin-bottom: 12px;
}

.legal-section ul li,
.legal-section ol li {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 6px;
  list-style-type: disc;
}

.legal-section ol li {
  list-style-type: decimal;
}

/* --- Animations --- */
.fade-in {
  opacity: 1;
  transform: translateY(0);
}

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

/* Legal pages: content always visible, no animation */
.legal-content .fade-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.fade-in-left {
  opacity: 1;
  transform: translateX(0);
}

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

.fade-in-right {
  opacity: 1;
  transform: translateX(0);
}

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

.fade-in-scale {
  opacity: 1;
  transform: scale(1);
}

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

/* Stagger children */
.stagger-children > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.3s; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */

/* Tablet */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p {
    margin: 0 auto 36px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-grid {
    margin-top: 40px;
  }

  .about-preview .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-mission .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .section-title {
    font-size: 2rem;
  }

  .hero-content h1 {
    font-size: 2.8rem;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .navbar {
    padding: 0 16px;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-grid {
    max-width: 100%;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-item h3 {
    font-size: 2rem;
  }

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

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

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

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

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

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

  .service-detail-grid {
    grid-template-columns: 1fr;
  }

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

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

  .page-header h1 {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .cta h2 {
    font-size: 1.8rem;
  }

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

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

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.7rem;
  }

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

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

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

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

  .btn-lg {
    padding: 14px 28px;
    font-size: 0.95rem;
  }
}