/* ============================================
   Capital Electric Line — Stylesheet
   ============================================ */

:root {
  --color-primary: #1e40af;
  --color-primary-dark: #1e3a8a;
  --color-primary-light: #3b82f6;
  --color-accent: #eab308;
  --color-dark: #0f172a;
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-border: #e2e8f0;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  color: var(--color-dark);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-header p {
  margin-top: 16px;
  color: var(--color-text-light);
  font-size: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-dark);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
}

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

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

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

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

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

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  transition: all var(--transition);
}

.hero {
  padding: 80px 0 100px;
  background: linear-gradient(160deg, #eff6ff 0%, #fefce8 50%, #fff 100%);
  overflow: hidden;
}

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

.hero-content h1 {
  margin-bottom: 20px;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
  max-width: 480px;
}

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

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  border-radius: var(--radius-lg);
  opacity: 0.15;
  z-index: -1;
}

.stats {
  padding: 48px 0;
  background: var(--color-dark);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: #fff;
  margin-bottom: 4px;
}

.stat-item p {
  color: #94a3b8;
  font-size: 0.9rem;
}

.services {
  padding: 100px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.service-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, #dbeafe, #fef9c3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

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

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.cta-banner {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  text-align: center;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: 16px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

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

.cta-banner .btn-primary:hover {
  background: #f1f5f9;
  color: var(--color-primary-dark);
}

.page-hero {
  padding: 72px 0 64px;
  background: linear-gradient(160deg, #eff6ff 0%, #fefce8 100%);
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 16px;
}

.page-hero p {
  color: var(--color-text-light);
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto;
}

.about-section {
  padding: 80px 0;
}

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

.about-grid img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.values {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.value-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

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

.value-card h3 {
  margin-bottom: 10px;
}

.value-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.team-section {
  padding: 80px 0;
}

.team-card {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  padding: 48px 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.team-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.team-card h3 {
  margin-bottom: 4px;
}

.team-card .role {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.team-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.contact-section {
  padding: 80px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info h2 {
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--color-text-light);
  margin-bottom: 36px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, #dbeafe, #fef9c3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-detail h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.contact-detail a,
.contact-detail p {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-dark);
}

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

.contact-form h3 {
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.12);
}

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

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

.expertise {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.expertise-item {
  padding: 32px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.expertise-item h3 {
  margin-bottom: 12px;
  color: var(--color-primary);
}

.expertise-item p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.work {
  padding: 100px 0;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.work-card {
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: all var(--transition);
}

.work-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.work-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: #dbeafe;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
}

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

.work-card > p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.work-details {
  list-style: none;
}

.work-details li {
  font-size: 0.85rem;
  color: var(--color-text-light);
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
}

.work-details li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.process {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.process-step {
  text-align: center;
  padding: 32px 20px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.process-step h3 {
  margin-bottom: 10px;
}

.process-step p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.industries {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.industry-card {
  padding: 28px 24px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.industry-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.industry-card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.industry-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.tech-stack {
  padding: 80px 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.tech-group {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.tech-group h4 {
  color: var(--color-primary);
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.tech-group p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

.legal-content {
  padding: 60px 0 100px;
}

.legal-body {
  max-width: 760px;
  margin: 0 auto;
}

.legal-body h2 {
  font-size: 1.35rem;
  margin-top: 36px;
  margin-bottom: 14px;
}

.legal-body p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.legal-body ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-body ul li {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.legal-body a {
  color: var(--color-primary);
  font-weight: 500;
}

.site-footer {
  padding: 56px 0 32px;
  background: var(--color-dark);
  color: #94a3b8;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-address {
  display: block;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 10px;
  color: #94a3b8;
}

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

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: #94a3b8;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-image {
    order: -1;
  }

  .services-grid,
  .values-grid,
  .work-grid,
  .industries-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}