/* ===== Reset & Variables ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --color-primary: #00BFFF;
  --color-secondary: #FF4500;
  --color-dark: #1A1A2E;
  --color-accent: #FFD700;
  --color-bg: #0f0f1a;
  --color-card-bg: rgba(26, 26, 46, 0.8);
  --color-border: rgba(0, 191, 255, 0.3);
  --color-text-light: #FFFFFF;
  --color-text-dark: #1A1A2E;
  --font-heading: 'Futura Extra Bold', 'Impact', sans-serif;
  --font-body: 'Inter', 'Arial', sans-serif;
  --max-width: 1280px;
  --header-height: 70px;
  --nav-width: 260px;
  --transition: 0.3s ease-out;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-light);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-accent);
  color: var(--color-text-dark);
  padding: 0.5rem 1rem;
  z-index: 1000;
  font-weight: bold;
}
.skip-link:focus { top: 0; }

/* ===== Container ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-primary);
}
.brand-icon { font-size: 2rem; color: var(--color-secondary); }
.brand-name { letter-spacing: 2px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}
.nav-toggle-bar {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--color-text-light);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.site-nav ul {
  display: flex;
  list-style: none;
  gap: 24px;
}
.site-nav a {
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 1rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s, color 0.3s;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-secondary);
}
.cta-btn { margin-left: 10px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark);
  padding: 40px 20px 20px;
  border-top: 2px solid var(--color-border);
  margin-top: 80px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
}
.footer-trust { font-size: 0.9rem; color: rgba(255,255,255,0.7); max-width: 600px; }
.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a { color: var(--color-primary); font-size: 0.95rem; }
.footer-contact { display: flex; gap: 20px; font-size: 0.9rem; color: rgba(255,255,255,0.6); flex-wrap: wrap; justify-content: center; }
.footer-icp { font-size: 0.85rem; color: rgba(255,255,255,0.5); display: flex; gap: 16px; }
.footer-note { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border: 2px solid transparent;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
  text-decoration: none;
  text-align: center;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.3); text-decoration: none; }
.btn-primary { background: var(--color-primary); color: var(--color-text-dark); border-color: var(--color-primary); }
.btn-primary:hover { background: #0099cc; }
.btn-secondary { background: var(--color-secondary); color: var(--color-text-light); border-color: var(--color-secondary); }
.btn-secondary:hover { background: #e03d00; }
.btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-primary); color: var(--color-text-dark); }

/* ===== Cards ===== */
.card {
  background: var(--color-card-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 191, 255, 0.15);
}
.card-title { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 12px; color: var(--color-primary); }
.card-body { font-size: 1rem; line-height: 1.6; color: rgba(255,255,255,0.85); }

/* ===== Section Title ===== */
.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 10px;
  color: var(--color-text-light);
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--color-secondary);
}

/* ===== Grid ===== */
.grid-2, .grid-3, .grid-4 {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== Utility ===== */
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text-dark);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  gap: 8px;
  list-style: none;
  font-size: 0.9rem;
  padding: 16px 0;
  color: rgba(255,255,255,0.6);
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb li+li::before { content: '/'; margin-right: 8px; color: rgba(255,255,255,0.4); }

/* ===== Scroll Progress ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  z-index: 101;
  transition: width 0.1s linear;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-dark);
    flex-direction: column;
    justify-content: flex-start;
    padding: 40px 20px;
    gap: 30px;
    transform: translateX(100%);
    transition: transform 0.3s;
    overflow-y: auto;
  }
  .site-nav[data-open] { transform: translateX(0); }
  .site-nav ul { flex-direction: column; gap: 16px; }
  .cta-btn { margin-left: 0; width: 100%; }
}
@media (min-width: 1024px) {
  .site-header { padding-right: 40px; }
  .site-nav { display: flex; }
  .nav-toggle { display: none; }
}
@media (max-width: 600px) {
  .site-header { padding: 0 12px; }
  .brand-name { font-size: 1.2rem; }
  .footer-contact { flex-direction: column; gap: 6px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ===== Image Placeholder ===== */
.img-placeholder {
  display: block;
  width: 100%;
  height: auto;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-bg) 100%);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}
.img-placeholder::before {
  content: '📸';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  opacity: 0.3;
}