/* ===== VARIABLES ===== */
:root {
  --bg-primary: #080c14;
  --bg-secondary: #0d1421;
  --bg-card: #0f1825;
  --bg-light: #f1f5f9;
  --border: rgba(255, 255, 255, 0.07);
  --border-blue: rgba(59, 130, 246, 0.25);
  --blue: #2563eb;
  --blue-bright: #3b82f6;
  --blue-light: #60a5fa;
  --green: #10b981;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== TYPOGRAPHY ===== */
.label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-title span { color: var(--blue-bright); }

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 520px;
  line-height: 1.7;
}

.highlight { color: var(--blue-bright); }

/* ===== LAYOUT ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

/* ===== NAVBAR ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1160px;
  margin: 0 auto;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 36px;
  width: auto;
  display: block;
}

.logo-footer img {
  height: 44px;
  width: auto;
  display: block;
}

/* Nav links */
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a:hover { color: #fff; }

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--blue-bright);
  border-radius: 2px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

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

.btn-primary:hover {
  background: var(--blue);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  border-color: var(--blue-bright);
  color: var(--blue-bright);
  transform: translateY(-1px);
}

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

.btn-outline-green:hover {
  background: rgba(16, 185, 129, 0.1);
  transform: translateY(-1px);
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--border-blue);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 220px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-bottom-links a:hover { color: var(--text-secondary); }

/* ===== SOCIAL ICON ===== */
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.social-icon:hover {
  border-color: var(--blue-bright);
  color: var(--blue-bright);
}

/* ===== WAVE BG ===== */
.wave-bg {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ===== BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.badge-green {
  background: rgba(16, 185, 129, 0.12);
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ===== DIVIDER ===== */
.divider {
  width: 40px;
  height: 3px;
  background: var(--blue-bright);
  border-radius: 2px;
  margin: 20px 0;
}

/* ===== ICON BOX ===== */
.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-bright);
  flex-shrink: 0;
}

.icon-box svg { width: 22px; height: 22px; }

/* ===== CHECK LIST ===== */
.check-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
  margin: 16px 0;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.check-item svg {
  width: 16px;
  height: 16px;
  color: var(--green);
  flex-shrink: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .nav-links { gap: 20px; }
  section { padding: 60px 0; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}