/* ====== NAVIGATION ====== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11, 17, 32, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-dark);
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-6);
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-brand { font-size: var(--text-xl); font-weight: 800; color: var(--color-text-light); letter-spacing: -0.02em; }
.nav-brand span { color: var(--color-accent); }
.nav-links { display: flex; gap: var(--space-8); align-items: center; }
.nav-links a { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-light-muted); transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--color-text-light); }
.nav-cta { background: var(--color-cta); color: #fff !important; padding: var(--space-2) var(--space-5); border-radius: var(--radius-md); font-weight: 600; transition: background var(--transition-fast); }
.nav-cta:hover { background: var(--color-cta-hover); color: #fff !important; }

/* Mobile nav */
.nav-toggle { display: none; background: none; border: none; color: var(--color-text-light); font-size: 1.5rem; cursor: pointer; padding: var(--space-2); }
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--color-bg-dark); flex-direction: column; padding: var(--space-6); gap: var(--space-4); border-bottom: 1px solid var(--color-border-dark); }
  .nav-links.open { display: flex; }
  .nav-cta { text-align: center; }
}

/* ====== BUTTONS ====== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-md); font-weight: 600;
  font-size: var(--text-base); border: none; cursor: pointer; transition: all var(--transition-fast);
  text-decoration: none;
}
.btn-primary { background: var(--color-cta); color: #fff; }
.btn-primary:hover { background: var(--color-cta-hover); color: #fff; }
.btn-secondary { background: transparent; color: var(--color-text-light); border: 1px solid rgba(255,255,255,0.2); }
.btn-secondary:hover { border-color: rgba(255,255,255,0.4); color: #fff; }
.btn-outline { background: transparent; color: var(--color-primary); border: 1px solid var(--color-border-light); }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); border-radius: var(--radius-lg); }

/* ====== CARDS ====== */
.card {
  background: var(--color-bg-card); border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl); padding: var(--space-8);
  box-shadow: var(--shadow-md); transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-icon { font-size: 2rem; margin-bottom: var(--space-4); }
.card h4 { margin-bottom: var(--space-2); color: var(--color-text-dark); }
.card p { font-size: var(--text-sm); }

/* Dark cards (inside dark sections) */
.section-dark .card { background: var(--color-bg-dark-alt); border-color: var(--color-border-dark); }
.section-dark .card h4 { color: var(--color-text-light); }
.section-dark .card p { color: var(--color-text-light-muted); }

/* ====== GRID ====== */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
@media (min-width: 769px) and (max-width: 1024px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }

/* ====== BADGE ====== */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: rgba(0, 180, 216, 0.1); color: var(--color-accent);
  font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-pill);
}
.section-dark .badge { background: rgba(0, 180, 216, 0.15); }

/* ====== FEATURE LIST ====== */
.feature-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) 0;
}
.feature-icon {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(34, 197, 94, 0.1); color: var(--color-success);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-sm); font-weight: 700; margin-top: 2px;
}
.feature-text strong { display: block; margin-bottom: var(--space-1); font-size: var(--text-base); }
.feature-text p { font-size: var(--text-sm); margin: 0; }

/* ====== ACCORDION (FAQ) ====== */
.accordion-item { border-bottom: 1px solid var(--color-border-light); }
.accordion-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-5) 0; cursor: pointer; font-weight: 600; font-size: var(--text-lg);
  color: var(--color-text-dark); user-select: none;
}
.accordion-q::after { content: '+'; font-size: var(--text-2xl); font-weight: 300; color: var(--color-text-dark-muted); transition: transform var(--transition-fast); }
.accordion-item.open .accordion-q::after { content: '\2212'; }
.accordion-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.accordion-a-inner { padding-bottom: var(--space-5); color: var(--color-text-dark-muted); line-height: var(--line-height-relaxed); }
.accordion-item.open .accordion-a { max-height: 500px; }

/* ====== TRUST BAR ====== */
.trust-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-6); align-items: center; }
.trust-badge {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: 600; color: var(--color-text-dark-muted);
  padding: var(--space-2) var(--space-4); border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md); background: var(--color-bg-card);
}
.trust-badge svg { width: 18px; height: 18px; color: var(--color-success); }

/* ====== FOOTER ====== */
.footer { background: var(--color-bg-dark); color: var(--color-text-light-muted); padding: var(--space-16) 0 var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-8); margin-bottom: var(--space-12); }
.footer-brand { font-size: var(--text-xl); font-weight: 800; color: var(--color-text-light); margin-bottom: var(--space-3); }
.footer-brand span { color: var(--color-accent); }
.footer-desc { font-size: var(--text-sm); line-height: var(--line-height-relaxed); max-width: 320px; }
.footer-col h4 { color: var(--color-text-light); font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-4); }
.footer-col a { display: block; font-size: var(--text-sm); color: var(--color-text-light-muted); padding: var(--space-1) 0; transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-text-light); }
.footer-bottom { border-top: 1px solid var(--color-border-dark); padding-top: var(--space-6); font-size: var(--text-xs); text-align: center; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }