/* ===== CSS Custom Properties ===== */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1a1a1a;
  --accent: #0066ff;
  --accent-glow: rgba(0, 102, 255, 0.3);
  --accent-subtle: rgba(0, 102, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #555555;
  --border-color: #222222;
  --border-subtle: #1a1a1a;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50%;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --container-max: 1200px;
  --section-padding: 5rem;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
  list-style: none;
}

/* ===== Layout ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding) 0;
}

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

.section-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.section-intro {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}

/* ===== Notice Banner ===== */
.notice-banner {
  background: linear-gradient(90deg, var(--accent-subtle), transparent);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 0;
  font-size: 0.875rem;
}

.notice-banner.hidden {
  display: none;
}

.notice-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.notice-content p {
  color: var(--text-secondary);
  margin: 0;
}

.notice-content strong {
  color: var(--text-primary);
}

.notice-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  transition: color var(--transition-fast);
}

.notice-close:hover {
  color: var(--text-primary);
}

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
}

/* Mobile Nav */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
  }

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

  .nav-links li {
    padding: 0.75rem 1.5rem;
  }

  .nav-toggle {
    display: flex;
  }
}

/* ===== Hero Section ===== */
.hero {
  padding: 3rem 0;
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-image {
  flex-shrink: 0;
}

.profile-photo {
  width: 150px;
  height: 150px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--border-color);
  box-shadow: 0 0 40px var(--accent-glow);
}

.hero-text {
  flex: 1;
}

.callsign {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.bio {
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.social-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

.social-links svg {
  width: 20px;
  height: 20px;
}

/* Mobile Hero */
@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .callsign {
    font-size: 2.5rem;
  }

  .bio {
    margin-left: auto;
    margin-right: auto;
  }

  .social-links {
    justify-content: center;
  }
}

/* ===== Card Grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-4px);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.card-link {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  transition: color var(--transition-fast);
}

.card-link:hover {
  color: var(--text-primary);
}

.card-status {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  background: var(--accent-subtle);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* ===== Product Cards ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-base);
}

.product-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow);
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  padding: 0.25rem 0.5rem;
  background: var(--accent-subtle);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-new {
  background-color: rgba(0, 255, 100, 0.1);
  color: #00ff64;
}

.product-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.feature-list {
  margin-bottom: 1.5rem;
  padding-left: 1rem;
}

.feature-list li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.25rem 0;
  position: relative;
  padding-left: 1rem;
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.product-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: #0055dd;
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
  color: var(--text-primary);
}

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

.btn-secondary:hover {
  background: var(--accent-subtle);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* ===== Shop CTA ===== */
.shop-cta {
  text-align: center;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.shop-cta h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.shop-cta p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ===== On the Air ===== */
.air-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

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

.air-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.air-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

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

/* ===== POTA Stats Widget ===== */
.pota-stats {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.pota-stats h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.icon-tree {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-item {
  text-align: center;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
}

.stats-link {
  display: block;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.stats-link:hover {
  color: var(--accent);
}

/* ===== About ===== */
.about-content {
  max-width: 700px;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* ===== Contact ===== */
.contact-content {
  max-width: 600px;
}

.contact-content > p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.contact-item:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateX(4px);
}

.contact-item svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

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

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

.footer-73 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 0.5rem;
}

/* ===== Utility ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}