/* Formwork App Styles — matches landing page design language */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --concrete: #1a1a1a;
  --rebar: #d4622b;
  --rebar-hover: #e0753e;
  --rebar-dim: rgba(212, 98, 43, 0.15);
  --steel: #e8e4df;
  --dust: #9a958e;
  --blueprint: #2a3a4a;
  --blueprint-card: rgba(42, 58, 74, 0.25);
  --blueprint-hover: rgba(42, 58, 74, 0.45);
  --chalk: #f5f2ed;
  --danger: #c0392b;
  --success: #27ae60;
  --border: rgba(154, 149, 142, 0.15);
}

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

/* Noise 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: 0;
}

/* Layout */
.app-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* Top nav */
.app-nav {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.app-nav .logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--chalk);
  letter-spacing: -0.5px;
  text-decoration: none;
}
.app-nav .logo span { color: var(--rebar); }

.app-nav .nav-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.app-nav .nav-link {
  font-size: 13px;
  color: var(--dust);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid transparent;
  transition: all 0.2s;
}
.app-nav .nav-link:hover,
.app-nav .nav-link.active {
  color: var(--steel);
  border-color: rgba(212, 98, 43, 0.3);
}

/* Page header */
.page-header {
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.page-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--chalk);
  letter-spacing: -0.5px;
}

.page-header .subtitle {
  font-size: 14px;
  color: var(--dust);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--rebar);
  color: white;
}
.btn-primary:hover { background: var(--rebar-hover); }
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--blueprint-card);
  color: var(--steel);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--blueprint-hover); }

.btn-ghost {
  background: transparent;
  color: var(--dust);
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--steel); }

.btn-danger {
  background: rgba(192, 57, 43, 0.15);
  color: var(--danger);
  border: 1px solid rgba(192, 57, 43, 0.3);
}
.btn-danger:hover { background: rgba(192, 57, 43, 0.25); }

.btn-sm {
  font-size: 12px;
  padding: 6px 14px;
}

/* Cards */
.card {
  background: var(--blueprint-card);
  border-radius: 8px;
  padding: 24px;
  transition: background 0.2s;
  position: relative;
}
.card:hover { background: var(--blueprint-hover); }

.card-clickable {
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--chalk);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.card .meta {
  font-size: 13px;
  color: var(--dust);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.card .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.form-group label {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--dust);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(26, 26, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--chalk);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--rebar);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
  line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(154, 149, 142, 0.5);
}

.form-group .hint {
  font-size: 12px;
  color: var(--dust);
  margin-top: 6px;
  opacity: 0.7;
}

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

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

/* Section dividers */
.form-section {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--rebar);
  margin: 32px 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rebar-dim);
}

.form-section:first-child {
  margin-top: 0;
}

/* Report viewer */
.report-content {
  background: var(--blueprint-card);
  border-radius: 8px;
  padding: 32px;
  line-height: 1.8;
  font-size: 15px;
}

.report-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--chalk);
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.report-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--rebar);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 28px 0 12px;
}

.report-content p {
  color: var(--steel);
  margin-bottom: 8px;
}

.report-content ul,
.report-content ol {
  margin: 8px 0 8px 20px;
  color: var(--steel);
}

.report-content li {
  margin-bottom: 4px;
}

.report-header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 20px 24px;
  background: var(--blueprint-card);
  border-radius: 8px;
  margin-bottom: 20px;
}

.report-header-meta .meta-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.report-header-meta .meta-label {
  font-size: 11px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--dust);
}

.report-header-meta .meta-value {
  font-size: 15px;
  color: var(--chalk);
  font-weight: 500;
}

/* Status badges */
.badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 100px;
}

.badge-draft {
  background: rgba(154, 149, 142, 0.15);
  color: var(--dust);
}

.badge-generated {
  background: rgba(39, 174, 96, 0.15);
  color: var(--success);
}

.badge-final {
  background: rgba(212, 98, 43, 0.15);
  color: var(--rebar);
}

/* Empty states */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--dust);
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  color: var(--chalk);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  max-width: 360px;
  margin: 0 auto 20px;
  line-height: 1.6;
}

/* Loading / spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  color: var(--dust);
  font-size: 14px;
}

/* Alerts / errors */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 20px;
}

.alert-error {
  background: rgba(192, 57, 43, 0.12);
  color: #e74c3c;
  border: 1px solid rgba(192, 57, 43, 0.25);
}

.alert-success {
  background: rgba(39, 174, 96, 0.12);
  color: #2ecc71;
  border: 1px solid rgba(39, 174, 96, 0.25);
}

/* AI generation progress */
.ai-generating {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 48px;
  background: var(--blueprint-card);
  border-radius: 8px;
  text-align: center;
}

.ai-generating .pulse {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--rebar);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(0.9); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
}

.ai-generating p {
  color: var(--dust);
  font-size: 14px;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--dust);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 20px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--steel); }

/* Action bar */
.action-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* Divider */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 98, 43, 0.4), transparent);
  margin: 32px 0;
}

/* Responsive */
@media (max-width: 640px) {
  .app-container { padding: 0 16px; }
  .app-nav { padding: 16px 0; }
  .page-header h1 { font-size: 22px; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .report-header-meta { gap: 16px; }
  .card { padding: 18px; }
  .report-content { padding: 20px; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .action-bar { width: 100%; }
  .action-bar .btn { flex: 1; justify-content: center; }
}