/* KAT63 - Modern Stylesheet */
:root {
  --bg: #0a0e14;
  --bg-card: #121a24;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #d4a853;
  --accent-hover: #e5bc6a;
  --border: #30363d;
  --success: #3fb950;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* Layout */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo img {
  height: 48px;
}
.logo-text {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

/* Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-menu {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-muted);
  font-weight: 500;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent);
  background: rgba(212, 168, 83, 0.1);
}

/* Hero */
.hero {
  padding: 3rem 0;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin: 0 0 1rem;
  line-height: 1.2;
}
.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* Sections */
.section {
  padding: 3rem 0;
}
.section-alt {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.5rem;
  color: var(--accent);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  color: var(--accent);
}

/* Content typography */
.content h2 {
  font-size: 1.35rem;
  margin: 2rem 0 1rem;
  color: var(--accent);
}
.content h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
}
.content p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}
.content ul, .content ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}
.content li {
  margin-bottom: 0.5rem;
}
.content strong {
  color: var(--text);
}

/* Price list */
.price-list {
  display: grid;
  gap: 1rem;
}
.price-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}
.price-item span:first-child {
  font-weight: 500;
}
.price-item span:last-child {
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.contact-card h3 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
  color: var(--accent);
}
.contact-card .phone {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}
.contact-card a {
  display: inline-block;
  margin-top: 0.5rem;
}

/* Form */
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-muted);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

/* Social links */
.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.social-links a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.social-links a:hover {
  color: var(--accent);
}

/* Footer */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 3rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}
.footer-nav {
  display: flex;
  gap: 1rem;
}
.footer-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Catalyst type cards */
.catalyst-types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.catalyst-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.catalyst-card-header {
  background: linear-gradient(135deg, rgba(212,168,83,0.2), transparent);
  padding: 1.25rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
.catalyst-card-body {
  padding: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Tracking links */
.tracking-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tracking-links a {
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-muted);
}
.tracking-links a:hover {
  background: rgba(212,168,83,0.2);
  color: var(--accent);
}

/* Alert/Highlight box */
.alert-box {
  background: rgba(212,168,83,0.1);
  border: 1px solid rgba(212,168,83,0.3);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.open {
    display: flex;
  }
  .header-inner {
    position: relative;
  }
  .hero {
    padding: 2rem 0;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}