/* CloudArc — UI Components v2 */

/* ── Navbar ── */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: saturate(200%) blur(var(--blur-nav));
  -webkit-backdrop-filter: saturate(200%) blur(var(--blur-nav));
  border-bottom: 1px solid var(--color-border-light);
  transition:
    background 0.5s var(--ease-out),
    border-color 0.5s var(--ease-out),
    box-shadow 0.5s var(--ease-out),
    height 0.3s var(--ease-out);
}

.glass-nav.is-scrolled {
  height: 52px;
  background: rgba(255, 255, 255, 0.82);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-xs);
}

.glass-nav.is-scrolled .nav-brand-icon {
  transform: scale(0.94);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: var(--text-small);
  font-weight: 500;
  letter-spacing: -0.01em;
  border-radius: 980px;
  border: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 1px 2px rgba(0, 113, 227, 0.2);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--color-accent-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--color-white);
  border-color: rgba(0, 113, 227, 0.2);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 8px 14px;
}

.btn-ghost:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.03);
}

.btn-lg {
  padding: 14px 28px;
  font-size: var(--text-body);
}

/* ── Cards ── */
.glass-card {
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur-glass)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--blur-glass)) saturate(180%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.5s var(--ease-out),
    box-shadow 0.5s var(--ease-out),
    border-color 0.5s var(--ease-out);
}

.glass-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.glass-card--flat:hover {
  transform: none;
}

/* ── Feature icon ── */
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-mist);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: 18px;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.glass-card:hover .feature-icon {
  transform: scale(1.05);
  background: var(--color-accent-soft);
}

/* ── Pricing ── */
.pricing-card {
  position: relative;
  padding: 36px 32px;
}

.pricing-card.is-featured {
  border-color: rgba(0, 113, 227, 0.15);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(0, 113, 227, 0.08);
}

.pricing-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: white;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 5px 14px;
  border-radius: 980px;
}

/* ── FAQ ── */
.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  background: none;
  border: none;
  font-family: inherit;
  font-size: var(--text-body);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.45s var(--ease-out), padding 0.3s var(--ease-out);
}

.faq-answer.is-open {
  max-height: 320px;
  padding-bottom: 22px;
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--color-text-tertiary);
  transition: transform var(--transition), color var(--transition-fast);
}

.faq-item.is-open .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

/* ── Footer ── */
.site-footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border-light);
  padding: 56px 0 36px;
}

.footer-link {
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  transition: color var(--transition-fast);
}

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

/* ── Nav brand ── */
.nav-brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.nav-brand-icon-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-brand-icon {
  position: relative;
  z-index: 1;
  width: 30px;
  height: 30px;
  background: linear-gradient(145deg, var(--color-accent) 0%, #5ac8fa 100%);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 2px 8px var(--color-accent-glow);
  transition: transform var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.03);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  transition: height 0.3s var(--ease-out);
}

.glass-nav.is-scrolled .nav-inner {
  height: 52px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: rgba(0, 0, 0, 0.04);
}

.mobile-nav {
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(var(--blur-nav)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--blur-nav)) saturate(180%);
  z-index: 99;
  padding: 24px clamp(20px, 4vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav a {
  padding: 14px 16px;
  font-size: var(--text-body);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.mobile-nav a:hover {
  background: var(--color-accent-soft);
}

@media (max-width: 768px) {
  .nav-links-desktop {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
}