*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #1a1a2e;
  background: #f8fafc;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { max-width: 100%; height: auto; }
a { color: #0f766e; text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1rem; }

.header {
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.2rem;
  color: #0f766e;
  text-decoration: none;
}
.logo-icon { font-size: 1.4rem; }
.nav { display: flex; gap: 1.25rem; }
.nav-link {
  color: #475569;
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.25rem 0;
}
.nav-link:hover, .nav-link.active { color: #0f766e; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #1a1a2e;
}

.disclaimer-banner {
  background: #fef3c7;
  color: #92400e;
  font-size: 0.85rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid #fcd34d;
}
.disclaimer-banner.critical {
  background: #fee2e2;
  color: #991b1b;
  border-bottom-color: #fca5a5;
  font-size: 0.9rem;
  font-weight: 500;
}
.disclaimer-banner a { color: #b45309; font-weight: 600; }
.disclaimer-banner.critical a { color: #b91c1c; font-weight: 700; }

.hero {
  background: linear-gradient(135deg, #0f766e 0%, #134e4a 100%);
  color: #fff;
  padding: 2.75rem 0 3rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}
.hero-sub {
  font-size: 1rem;
  opacity: 0.95;
  max-width: 620px;
  margin: 0 auto 1.5rem;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}
.hero-badges span {
  background: rgba(255,255,255,0.15);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.5rem;
  color: #0f172a;
}
.section-sub {
  text-align: center;
  color: #64748b;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}
.options-section, .how-section, .trust-section { padding: 2.75rem 0; }
.how-section { background: #fff; }

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}
.option-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}
.option-card:hover {
  box-shadow: 0 8px 25px rgba(15, 118, 110, 0.12);
  transform: translateY(-2px);
}
.option-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.option-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: #0f172a;
}
.option-card p {
  font-size: 0.9rem;
  color: #64748b;
  flex-grow: 1;
  margin-bottom: 0.75rem;
}
.price-range {
  font-weight: 700;
  color: #0f766e;
  font-size: 1.05rem;
  margin-bottom: 1rem;
}
.track-card { border-color: #0f766e; background: #f0fdfa; }

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: background 0.2s, transform 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: #0f766e; color: #fff; }
.btn-primary:hover { background: #0d9488; }
.btn-secondary {
  background: #fff;
  color: #0f766e;
  border: 2px solid #0f766e;
}
.btn-secondary:hover { background: #f0fdfa; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.step { text-align: center; padding: 1rem; }
.step-num {
  width: 40px; height: 40px;
  background: #0f766e; color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; margin: 0 auto 0.75rem;
}
.step h4 { margin-bottom: 0.35rem; font-size: 1rem; }
.step p { font-size: 0.9rem; color: #64748b; }

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.trust-item {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 1.25rem;
}
.trust-item h4 { margin-bottom: 0.4rem; font-size: 1rem; }
.trust-item p { font-size: 0.9rem; color: #64748b; }

.footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 2.5rem 0 1rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer h4 { color: #fff; margin-bottom: 0.75rem; font-size: 1rem; }
.footer p, .footer li { font-size: 0.9rem; margin-bottom: 0.4rem; }
.footer a { color: #5eead4; }
.footer .small { font-size: 0.8rem; opacity: 0.85; }
.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 1rem;
  text-align: center;
  font-size: 0.85rem;
}

.form-section { padding: 2rem 0 3rem; }
.form-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1.75rem;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}
.form-card h2 { font-size: 1.35rem; margin-bottom: 0.25rem; }
.selected-badge {
  display: inline-block;
  background: #ccfbf1;
  color: #0f766e;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
}
.form-group { margin-bottom: 1.1rem; }
.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: #334155;
}
.form-group label .req { color: #dc2626; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #0f766e;
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
}
.form-group textarea { min-height: 90px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.input-prefix { display: flex; align-items: center; }
.input-prefix span {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-right: none;
  padding: 0.7rem 0.7rem;
  border-radius: 8px 0 0 8px;
  font-size: 0.9rem;
  color: #475569;
}
.input-prefix input { border-radius: 0 8px 8px 0; }
.error-msg {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}
.form-group.error input,
.form-group.error select,
.form-group.error textarea { border-color: #dc2626; }
.form-group.error .error-msg { display: block; }

.payment-card {
  max-width: 480px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1.75rem;
  text-align: center;
}
.qr-container {
  background: #f8fafc;
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.25rem 0;
}
.qr-container img { max-width: 220px; margin: 0 auto; display: block; }
.amount-display {
  font-size: 2rem;
  font-weight: 700;
  color: #0f766e;
  margin: 0.5rem 0;
}
.secure-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #ecfdf5;
  color: #065f46;
  font-size: 0.85rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.upload-area {
  border: 2px dashed #94a3b8;
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1rem 0;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.upload-area:hover, .upload-area.dragover {
  border-color: #0f766e;
  background: #f0fdfa;
}
.upload-area input { display: none; }
.upload-preview {
  max-width: 180px;
  margin: 0.75rem auto 0;
  border-radius: 8px;
  display: none;
}

.confirm-card {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid #e2e8f0;
}
.success-icon { font-size: 3.5rem; text-align: center; margin-bottom: 0.75rem; }
.order-id-box {
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  margin: 1.25rem 0;
}
.order-id-box strong {
  font-size: 1.3rem;
  color: #0f766e;
  letter-spacing: 1px;
}
.details-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.9rem;
}
.details-table th, .details-table td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid #e2e8f0;
}
.details-table th { color: #64748b; font-weight: 500; width: 40%; }

.policy-content {
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid #e2e8f0;
}
.policy-content h1 { font-size: 1.6rem; margin-bottom: 0.5rem; }
.policy-content h2 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
  color: #0f172a;
}
.policy-content p, .policy-content li {
  font-size: 0.95rem;
  color: #475569;
  margin-bottom: 0.6rem;
}
.policy-content ul { padding-left: 1.25rem; list-style: disc; }
.policy-meta {
  font-size: 0.85rem;
  color: #94a3b8;
  margin-bottom: 1.5rem;
}

.track-form { max-width: 420px; margin: 0 auto 2rem; }
.track-result {
  display: none;
  max-width: 520px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid #e2e8f0;
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
  .nav.open { display: flex; }
  .menu-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 2rem 0 2.5rem; }
  .options-section, .how-section, .trust-section { padding: 2rem 0; }
}
@media (max-width: 480px) {
  .options-grid { grid-template-columns: 1fr; }
  .amount-display { font-size: 1.6rem; }
}