/* ─── NSB Shared Design System ─── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --green-dark: #0a1a0f;
  --green-deep: #0f2918;
  --green-mid: #1a4a2e;
  --green-accent: #2dd36f;
  --green-glow: #34d97b;
  --cream: #f0ece2;
  --white: #ffffff;
  --gray-light: #b8c4bb;
  --gray-mid: #8a9a8e;
  --amber: #d4a843;
  --red: #ef4444;
  --red-dark: #dc2626;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--green-dark);
  color: var(--cream);
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

/* Grain texture overlay */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* ─── Navigation ─── */
nav {
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
  text-decoration: none;
}

.logo span { color: var(--green-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.8rem;
  color: var(--gray-light);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.2s;
  letter-spacing: 0.3px;
}

.nav-link:hover {
  border-color: var(--green-accent);
  color: var(--green-accent);
}

.nav-link.active {
  background: var(--green-accent);
  color: var(--green-dark);
  border-color: var(--green-accent);
  font-weight: 600;
}

/* ─── Page Hero ─── */
.page-hero {
  padding: 80px 0 48px;
  max-width: 720px;
}

.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--green-accent);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.page-hero .eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--green-accent);
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--white);
  margin-bottom: 16px;
}

.page-hero h1 em {
  font-style: normal;
  color: var(--green-accent);
}

.page-hero .subtitle {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--gray-light);
  max-width: 560px;
}

/* ─── Content Sections ─── */
.content-section {
  padding: 48px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* ─── Info Cards ─── */
.info-panel {
  position: sticky;
  top: 40px;
}

.info-card {
  background: var(--green-deep);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.06);
}

.info-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.info-card p {
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.info-card p:last-child { margin-bottom: 0; }

.info-list {
  list-style: none;
  padding: 0;
}

.info-list li {
  font-size: 0.9rem;
  color: var(--gray-light);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.5;
}

.info-list li:last-child { border-bottom: none; }

.info-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--green-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ─── Pricing Cards ─── */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.pricing-card {
  background: var(--green-deep);
  border-radius: 12px;
  padding: 24px;
  border: 2px solid rgba(255,255,255,0.06);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.pricing-card:hover {
  border-color: rgba(45, 211, 111, 0.3);
}

.pricing-card.selected {
  border-color: var(--green-accent);
  background: rgba(45, 211, 111, 0.06);
}

.pricing-card .price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--green-accent);
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.pricing-card .tier-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}

.pricing-card .tier-desc {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.5;
}

.pricing-card .popular-badge {
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--amber);
  color: var(--green-dark);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── Forms ─── */
.form-panel {
  background: var(--green-deep);
  border-radius: 16px;
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.06);
}

.form-panel h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.form-panel .form-subtitle {
  font-size: 0.9rem;
  color: var(--gray-light);
  margin-bottom: 28px;
  line-height: 1.5;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-light);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.form-group label .required {
  color: var(--green-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green-accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23b8c4bb' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.form-group select option {
  background: var(--green-deep);
  color: var(--white);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group .hint {
  font-size: 0.78rem;
  color: var(--gray-mid);
  margin-top: 6px;
}

/* Submit Button */
.btn-submit {
  width: 100%;
  padding: 16px 32px;
  background: var(--green-accent);
  color: var(--green-dark);
  border: none;
  border-radius: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: -0.3px;
  margin-top: 8px;
}

.btn-submit:hover {
  background: var(--green-glow);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ─── Success Message ─── */
.success-message {
  display: none;
  text-align: center;
  padding: 48px 24px;
}

.success-message.visible {
  display: block;
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(45, 211, 111, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
}

.success-message h2 {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 12px;
}

.success-message p {
  font-size: 1rem;
  color: var(--gray-light);
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto;
}

.success-message .back-link {
  display: inline-block;
  margin-top: 24px;
  color: var(--green-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.success-message .back-link:hover {
  text-decoration: underline;
}

/* ─── Feature Highlight Bar ─── */
.highlight-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2px;
  background: rgba(255,255,255,0.06);
  border-radius: 12px;
  overflow: hidden;
  margin: 40px 0;
}

.highlight-item {
  background: var(--green-deep);
  padding: 24px 20px;
  text-align: center;
}

.highlight-item .icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.highlight-item .label {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.4;
}

.highlight-item .value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

/* ─── Footer ─── */
footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  margin-top: 60px;
}

footer p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

footer a {
  color: rgba(255,255,255,0.4);
  text-decoration: none;
}

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

/* ─── Loading spinner ─── */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(10,26,15,0.3);
  border-top-color: var(--green-dark);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .page-hero { padding: 48px 0 32px; }
  .section-grid { grid-template-columns: 1fr; gap: 32px; }
  .info-panel { position: static; order: -1; }
  .form-row { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .highlight-bar { grid-template-columns: 1fr 1fr; }
  .nav-links { gap: 4px; }
  .nav-link { font-size: 0.72rem; padding: 6px 10px; }
}

@media (max-width: 480px) {
  .page-hero h1 { letter-spacing: -0.8px; }
  .form-panel { padding: 24px; }
  .highlight-bar { grid-template-columns: 1fr; }
  .nav-links { flex-wrap: wrap; }
}