/* ═══════════════════════════════════════════════════════════
   PREXFORGE LIVING ENVIRONMENT — PHASE B PRODUCTION SURFACE
   Design: Warm ivory + deep teal + restrained gold
   Living environment, NOT conventional website.
   ═══════════════════════════════════════════════════════════ */

:root {
  --ivory: #F9F7F2;
  --ivory-warm: #F5F0E6;
  --teal: #0B3D37;
  --teal-light: #1A6B5E;
  --teal-pale: #E0F2F1;
  --gold: #B8860B;
  --gold-light: #F5EED9;
  --gold-pale: #F8F0E3;
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --ink-faint: #888888;
  --white: #FFFFFF;
  --border: #E5E0D5;
  --border-soft: #EDE8DD;
  --shadow: 0 2px 12px rgba(11, 61, 55, 0.08);
  --shadow-deep: 0 4px 24px rgba(11, 61, 55, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --transition: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

:root {
  --child-sky: #E8F4FD;
  --child-sun: #FFF9E6;
  --child-grass: #E8F5E9;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--ivory);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--teal); color: var(--white);
  padding: 8px 16px; border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none; font-size: 14px; z-index: 1000;
  transition: top 200ms;
}
.skip-link:focus { top: 0; }

/* ═══ AMBIENT LAYER ═══ */
.ambient-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 56px;
  background: rgba(249, 247, 242, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  transition: background var(--transition);
}

.ambient-bar.child-mode {
  background: rgba(232, 244, 253, 0.92);
  border-bottom-color: #B3D9F0;
}

.brand-mark {
  display: flex; align-items: center; gap: 8px;
  background: none; border: none; cursor: pointer;
  color: var(--teal); font-family: var(--font-display);
  font-size: 18px; font-weight: 600;
}

.ambient-center {
  flex: 1; max-width: 500px; margin: 0 20px;
}

.ambient-center input {
  width: 100%; padding: 8px 16px;
  border: 1px solid var(--border); border-radius: 20px;
  background: var(--white); font-family: var(--font-body);
  font-size: 14px; color: var(--ink); outline: none;
  transition: border-color var(--transition);
}

.ambient-center input:focus { border-color: var(--teal-light); }

.ambient-auth-area { display: flex; align-items: center; gap: 8px; }

.ambient-auth-area .auth-welcome {
  font-size: 13px; color: var(--ink-soft); margin-right: 8px;
}

.ambient-auth-area .auth-btn {
  padding: 6px 14px; border: 1px solid var(--teal);
  border-radius: 6px; background: none; color: var(--teal);
  cursor: pointer; font-size: 13px; font-weight: 500;
  transition: all var(--transition);
}

.ambient-auth-area .auth-btn:hover {
  background: var(--teal); color: var(--white);
}

.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--teal); padding: 4px;
}

.ambient-nav-menu {
  display: none; position: absolute; top: 56px; right: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-deep); padding: 8px; min-width: 200px;
  flex-direction: column; gap: 2px;
}

.ambient-nav-menu.open { display: flex; }

.ambient-nav-menu button {
  text-align: left; padding: 10px 14px; border: none;
  background: none; cursor: pointer; font-size: 14px;
  color: var(--ink); border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.ambient-nav-menu button:hover { background: var(--teal-pale); }

/* ═══ ARRIVAL ═══ */
.arrival {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 80px 20px 60px; text-align: center;
  transition: opacity 400ms, transform 400ms;
}

.arrival.gone {
  opacity: 0; transform: translateY(-20px); pointer-events: none;
  position: absolute; top: 0; left: 0; right: 0;
}

.arrival-question {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 56px);
  font-weight: 600; color: var(--teal); line-height: 1.15;
  max-width: 800px; margin-bottom: 32px;
}

.arrival-input-row {
  display: flex; gap: 8px; width: 100%; max-width: 560px;
  margin-bottom: 24px;
}

.arrival-input {
  flex: 1; padding: 16px 20px; font-size: 17px;
  border: 2px solid var(--border); border-radius: var(--radius);
  font-family: var(--font-body); color: var(--ink);
  background: var(--white); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.arrival-input:focus {
  border-color: var(--teal-light);
  box-shadow: 0 0 0 4px var(--teal-pale);
}

.intent-submit {
  padding: 16px 20px; background: var(--teal); color: var(--white);
  border: none; border-radius: var(--radius); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}

.intent-submit:hover { background: var(--teal-light); }

.intent-hints {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  max-width: 700px;
}

.intent-hint {
  padding: 8px 18px; background: var(--white);
  border: 1px solid var(--border); border-radius: 20px;
  font-size: 14px; color: var(--teal); cursor: pointer;
  transition: all var(--transition); font-family: var(--font-body);
}

.intent-hint:hover {
  background: var(--teal); color: var(--white);
  border-color: var(--teal); transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.arrival-tagline {
  position: absolute; bottom: 40px; left: 0; right: 0;
  text-align: center; font-family: var(--font-display);
  font-size: 18px; color: var(--ink-faint); font-style: italic;
}

/* ═══ MANIFESTATION ═══ */
.manifestation {
  display: none; min-height: 100vh;
  padding: 80px 20px 60px; animation: manifest-in 600ms ease;
}

.manifestation.active { display: block; }

@keyframes manifest-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.manifest-container { max-width: 1000px; margin: 0 auto; }

.manifest-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 8px;
}

.manifest-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 16px;
  font-size: 13px; font-weight: 600;
}

.manifest-badge.professional { background: var(--teal-pale); color: var(--teal); }
.manifest-badge.trade { background: var(--gold-pale); color: var(--gold); }
.manifest-badge.university { background: #E3F2FD; color: #1565C0; }
.manifest-badge.child { background: var(--child-sky); color: #0277BD; }
.manifest-badge.institution { background: #F3E5F5; color: #7B1FA2; }

.intent-title {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px);
  font-weight: 600; color: var(--teal); margin-bottom: 8px;
}

.intent-subtitle {
  font-size: 17px; color: var(--ink-soft); margin-bottom: 32px;
  max-width: 600px;
}

/* ═══ MANIFEST SECTIONS ═══ */
.manifest-section { margin-bottom: 36px; }

.section-label {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1.5px; color: var(--ink-faint); margin-bottom: 12px;
}

/* ═══ OFFERING CARDS ═══ */
.offering-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.offering-card {
  background: var(--white); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 20px; cursor: pointer;
  transition: all var(--transition); position: relative;
}

.offering-card:hover {
  border-color: var(--teal-light); box-shadow: var(--shadow-deep);
  transform: translateY(-2px);
}

.offering-card-title {
  font-family: var(--font-display); font-size: 18px; font-weight: 600;
  color: var(--ink); margin-bottom: 8px; line-height: 1.3;
}

.offering-card-desc {
  font-size: 14px; color: var(--ink-soft); margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

.offering-card-meta {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px;
}

.meta-tag {
  font-size: 12px; padding: 3px 10px; border-radius: 12px;
  background: var(--ivory-warm); color: var(--ink-soft);
}

.meta-tag.free { background: #E8F5E9; color: #2E7D32; font-weight: 600; }
.meta-tag.physical { background: var(--gold-pale); color: var(--gold); }
.meta-tag.hybrid { background: #E3F2FD; color: #1565C0; }

.offering-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 12px; border-top: 1px solid var(--border-soft);
}

.offering-price {
  font-family: var(--font-display); font-size: 18px;
  font-weight: 600; color: var(--teal);
}

.offering-price.free { color: #2E7D32; }

.offering-enrollment {
  font-size: 12px; color: var(--ink-faint);
}

/* ═══ TRUST BADGES ═══ */
.trust-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 600; padding: 3px 8px;
  border-radius: 4px;
}

.trust-dot { width: 7px; height: 7px; border-radius: 50%; }
.trust-dot.green { background: #2D6A4F; }
.trust-dot.amber { background: #D4A017; }
.trust-dot.grey { background: #999; }

.trust-self-declared { background: #F5F5F5; color: #666; }
.trust-evidence-submitted { background: #FFF8E1; color: #B8860B; }
.trust-document-verified { background: #E8F5E9; color: #2E7D32; }
.trust-external-verified { background: #E8F5E9; color: #1B5E20; }
.trust-registry-verified { background: #E3F2FD; color: #1565C0; }

/* ═══ PATHWAY STEPS ═══ */
.pathway-steps {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px;
  margin-bottom: 24px;
}

.pathway-step {
  display: flex; flex-direction: column; align-items: center;
  padding: 10px 16px; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  min-width: 100px;
}

.pathway-step-num {
  font-size: 11px; font-weight: 700; color: var(--teal-light);
  margin-bottom: 2px;
}

.pathway-step-label { font-size: 13px; font-weight: 500; color: var(--ink); }

.pathway-arrow { color: var(--ink-faint); font-size: 18px; }

/* ═══ CREDENTIAL BOUNDARY ═══ */
.boundary-box {
  background: var(--ivory-warm); border: 1px solid var(--border);
  border-left: 4px solid var(--gold); border-radius: var(--radius);
  padding: 16px 20px; margin-bottom: 24px;
}

.boundary-title {
  font-size: 13px; font-weight: 700; color: var(--gold);
  margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px;
}

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

/* ═══ OFFERING DETAIL ═══ */
.detail-header {
  margin-bottom: 24px;
}

.detail-title {
  font-family: var(--font-display); font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 600; color: var(--teal); margin-bottom: 12px;
}

.detail-meta-row {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px;
}

.detail-description {
  font-size: 16px; color: var(--ink-soft); line-height: 1.7;
  margin-bottom: 24px;
}

.detail-section {
  margin-bottom: 24px; padding: 20px; background: var(--white);
  border: 1px solid var(--border-soft); border-radius: var(--radius);
}

.detail-section h3 {
  font-family: var(--font-display); font-size: 16px; font-weight: 600;
  color: var(--teal); margin-bottom: 12px;
}

.detail-row {
  display: flex; justify-content: space-between; padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}

.detail-row:last-child { border-bottom: none; }

.detail-label { font-size: 14px; color: var(--ink-faint); }

.detail-value { font-size: 14px; color: var(--ink); font-weight: 500; }

/* ═══ PARTICIPATION GATE ═══ */
.modal-overlay {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(11, 61, 55, 0.4); backdrop-filter: blur(4px);
  z-index: 200; align-items: center; justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal-content {
  background: var(--white); border-radius: var(--radius);
  max-width: 480px; width: 90%; padding: 32px;
  box-shadow: var(--shadow-deep); position: relative;
}

.modal-close {
  position: absolute; top: 12px; right: 12px;
  background: none; border: none; font-size: 24px;
  color: var(--ink-faint); cursor: pointer;
}

.gate-title {
  font-family: var(--font-display); font-size: 24px;
  font-weight: 600; color: var(--teal); margin-bottom: 8px;
}

.gate-subtitle { font-size: 15px; color: var(--ink-soft); margin-bottom: 24px; }

.gate-form-group { margin-bottom: 16px; }

.gate-form-group label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--ink); margin-bottom: 6px;
}

.gate-form-group input {
  width: 100%; padding: 12px 14px; font-size: 15px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  outline: none; transition: border-color var(--transition);
}

.gate-form-group input:focus { border-color: var(--teal-light); }

.gate-btn {
  width: 100%; padding: 14px; background: var(--teal);
  color: var(--white); border: none; border-radius: var(--radius);
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: background var(--transition);
}

.gate-btn:hover { background: var(--teal-light); }

.gate-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.gate-note {
  font-size: 13px; color: var(--ink-faint); margin-top: 12px;
  text-align: center;
}

.gate-error {
  background: #FFF3E0; border: 1px solid #FFB74D;
  border-radius: var(--radius-sm); padding: 10px 14px;
  font-size: 13px; color: #E65100; margin-bottom: 16px;
}

/* ═══ CLASS SHELL ═══ */
.class-header {
  margin-bottom: 32px;
}

.class-title {
  font-family: var(--font-display); font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 600; color: var(--teal); margin-bottom: 8px;
}

.class-subtitle { font-size: 16px; color: var(--ink-soft); }

.class-section { margin-bottom: 32px; }

.class-card {
  background: var(--white); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 20px; margin-bottom: 12px;
  transition: all var(--transition);
}

.class-card:hover { border-color: var(--teal-light); box-shadow: var(--shadow); }

.class-card-title {
  font-family: var(--font-display); font-size: 17px; font-weight: 600;
  color: var(--ink); margin-bottom: 6px;
}

.class-card-meta { font-size: 13px; color: var(--ink-faint); }

.class-empty {
  text-align: center; padding: 40px 20px; color: var(--ink-faint);
}

/* ═══ PRESENCE INDICATOR ═══ */
.presence-indicator {
  position: fixed; bottom: 16px; right: 16px;
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px; background: rgba(249, 247, 242, 0.92);
  backdrop-filter: blur(8px); border: 1px solid var(--border-soft);
  border-radius: 16px; font-size: 11px; color: var(--ink-faint);
  z-index: 50;
}

.presence-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #2D6A4F; animation: pulse 3s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ═══ DEMO BANNER ═══ */
.demo-banner {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: #FF6B6B; color: white;
  text-align: center; padding: 4px 0;
  font-size: 11px; font-weight: 600; letter-spacing: 0.5px;
  z-index: 50;
}

/* ═══ LOADING ═══ */
.loading-state {
  text-align: center; padding: 40px; color: var(--ink-faint);
}

.loading-spinner {
  width: 32px; height: 32px; border: 3px solid var(--border);
  border-top-color: var(--teal); border-radius: 50%;
  animation: spin 800ms linear infinite; margin: 0 auto 12px;
}

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

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .ambient-center { display: none; }
  .nav-toggle { display: block; }
  .arrival-question { font-size: 28px; }
  .arrival-input-row { flex-direction: column; }
  .intent-submit { padding: 14px 20px; }
  .offering-grid { grid-template-columns: 1fr; }
  .pathway-steps { flex-direction: column; }
  .pathway-arrow { transform: rotate(90deg); }
  .modal-content { width: 95%; padding: 20px; }
  .manifestation { padding: 70px 16px 60px; }
}