/* Ohm Circuit Works - Professional Redesign */
:root {
  --primary: #0a5c5a;
  --primary-dark: #043c3a;
  --primary-light: #0b7a75;
  --accent: #d4af37;
  --accent-light: #f0d77d;
  --text: #1a1a1a;
  --text-muted: #5a5a5a;
  --text-light: #888888;
  --bg: #ffffff;
  --bg-alt: #f8fafa;
  --bg-dark: #0d1f1e;
  --border: #e5e5e5;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

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

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

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

.section {
  padding: 80px 0;
}

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

/* Header */
header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo img {
  width: 56px;
  height: 56px;
  border-radius: 8px;
}

.logo-text {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary-dark);
}

.logo-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 8px;
}

nav a {
  padding: 10px 18px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  transition: var(--transition);
}

nav a:hover, nav a.active {
  background: var(--bg-alt);
  color: var(--primary);
}

/* Hero */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--bg-alt) 0%, #e8f4f4 100%);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  margin-bottom: 24px;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 700px;
  margin-bottom: 32px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.badge-icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(10, 92, 90, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(10, 92, 90, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* Grid & Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: white;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  border-color: transparent;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

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

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* Section Headers */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-header .overline {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Features */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.feature-check {
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-check svg {
  width: 14px;
  height: 14px;
  color: white;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  padding: 60px 0;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 8px;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: white;
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  color: white;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-section .btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
}

.cta-section .btn-primary:hover {
  background: var(--accent-light);
}

/* Note Box */
.note {
  background: linear-gradient(135deg, #fff9ed 0%, #fff5e0 100%);
  border-left: 4px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: #6b4b2b;
  font-size: 0.95rem;
  margin-top: 32px;
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 0.95rem;
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: 6px;
}

.footer-logo span {
  font-weight: 700;
  font-size: 1.1rem;
  color: white;
}

footer h4 {
  color: white;
  font-size: 0.9rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

footer ul {
  list-style: none;
}

footer li {
  margin-bottom: 10px;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

footer a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  font-size: 0.85rem;
  text-align: center;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

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

.contact-info > p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

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

.contact-detail-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-alt);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.contact-detail strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-detail span, .contact-detail a {
  font-size: 1rem;
  color: var(--text);
}

/* Contact Card */
.contact-card {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-card h3 {
  margin-bottom: 8px;
}

.contact-card > p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* About Page */
.about-intro {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  border-radius: var(--radius-lg);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image svg {
  width: 120px;
  height: 120px;
  color: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 900px) {
  .hero { padding: 60px 0; }
  .section { padding: 60px 0; }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-grid, .about-intro {
    grid-template-columns: 1fr;
  }
  
  .about-image { height: 300px; }
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 16px;
  }
  
  nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  nav a {
    padding: 8px 14px;
  }
  
  .hero-badges {
    justify-content: center;
  }
  
  .stats {
    grid-template-columns: 1fr 1fr;
  }
  
  .stat-number { font-size: 2.5rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card { padding: 24px; }
  .contact-card { padding: 24px; }
  
  .stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}