/* ============================================================
   3rd Wave Asia — Components
   Navigation, Cards, Footer, Forms
   ============================================================ */

/* ============================================================
   Navigation
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(14, 17, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.site-header.scrolled {
  background: rgba(14, 17, 22, 0.95);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  z-index: 1001;
}

.nav-logo img {
  height: 44px;
  width: 44px;
  min-width: 44px;
  aspect-ratio: 1 / 1;
  display: block;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
  flex-shrink: 0;
  background: transparent;
  overflow: hidden;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  -ms-interpolation-mode: bicubic;
}

.nav-logo .logo-text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 6px;
}

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Cards
   ============================================================ */

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-md);
  transition: all var(--duration-normal) var(--ease-out);
}

.card:hover {
  background: var(--card-hover);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Feature Cards */
.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-card:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.feature-title {
  font-size: 20px;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.feature-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Metric Cards */
.metric-card {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--duration-normal) var(--ease-out);
}

.metric-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}

.metric-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.04em;
}

.metric-label {
  display: block;
  font-size: 14px;
  color: var(--text-soft);
  margin-top: var(--space-xs);
  letter-spacing: 0.02em;
}

/* ============================================================
   CTA Card
   ============================================================ */

.cta-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 400px at 50% 30%, var(--accent-dim), transparent 70%);
  pointer-events: none;
}

.cta-title {
  position: relative;
  margin-bottom: var(--space-sm);
}

.cta-desc {
  position: relative;
  font-size: 18px;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
}

.cta-actions {
  position: relative;
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  margin-top: var(--space-3xl);
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer-tagline {
  margin-top: var(--space-sm);
  font-size: 15px;
  color: var(--text-soft);
}

.footer-heading {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: var(--space-md);
}

.footer-nav ul {
  list-style: none;
  display: grid;
  gap: var(--space-xs);
}

.footer-nav a {
  font-size: 15px;
  color: var(--text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer-email {
  display: block;
  font-size: 15px;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.footer-location {
  font-size: 14px;
  color: var(--text-soft);
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-faint);
}

/* ============================================================
   Forms
   ============================================================ */

.form-group {
  display: grid;
  gap: 8px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-faint);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(247,245,240,0.56)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

.form-error {
  font-size: 12px;
  color: #f87171;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea,
.form-group.has-error .form-select {
  border-color: #f87171;
}

/* Form Status Messages */
.form-status {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(34, 197, 139, 0.1);
  border: 1px solid rgba(34, 197, 139, 0.3);
  color: var(--accent-text);
}

.form-status.error {
  display: block;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: #fca5a5;
}

/* ============================================================
   Mobile Responsive — Navigation
   ============================================================ */

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    background: rgba(14, 17, 22, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-out);
    z-index: 1000;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 20px;
    padding: 12px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}