/* ============================================
   GovBid App Styles
   Extends landing page design system
   ============================================ */

/* Nav links */
.nav-link {
  color: var(--slate);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--white); }

/* Buttons */
.btn-primary {
  background: var(--green);
  color: var(--navy);
  border: none;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover { background: #0ea572; transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.25);
  padding: 12px 28px;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--green); color: var(--green); }

.btn-small {
  background: var(--green);
  color: var(--navy);
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'DM Sans', sans-serif;
}
.btn-small:hover { background: #0ea572; }
.btn-small:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-small-outline {
  background: transparent;
  color: var(--green);
  border: 1px solid var(--green);
}
.btn-small-outline:hover { background: var(--green-dim); }

.btn-small-success {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid var(--green);
}

.btn-small-danger {
  background: transparent;
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-small-danger:hover { background: rgba(239, 68, 68, 0.1); }

/* Page layout */
.page-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px 80px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
}

.page-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-subtitle {
  font-size: 16px;
  color: var(--slate);
  line-height: 1.5;
}

/* Auth */
.auth-card {
  max-width: 440px;
  margin: 60px auto;
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 16px;
  padding: 48px;
}
.auth-card h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}
.auth-subtitle {
  color: var(--slate);
  font-size: 15px;
  margin-bottom: 32px;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Form elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.input {
  background: var(--navy-light);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  transition: border-color 0.2s;
  width: 100%;
}
.input:focus {
  outline: none;
  border-color: var(--green);
}
.input::placeholder { color: rgba(148, 163, 184, 0.5); }

select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

.form-section {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}
.form-section h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-hint {
  font-size: 14px;
  color: var(--slate);
  margin-bottom: 16px;
}
.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

/* Checkbox grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--slate);
  cursor: pointer;
  transition: background 0.15s;
}
.checkbox-label:hover { background: var(--navy-light); }
.checkbox-label input[type="checkbox"] {
  accent-color: var(--green);
  width: 16px;
  height: 16px;
}

/* Search */
.search-panel {
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}
.search-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.search-row {
  display: flex;
  gap: 16px;
}

/* Tags */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  background: var(--navy-light);
  color: var(--slate);
  white-space: nowrap;
}
.tag-outline {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.2);
}
.tag-green {
  background: var(--green-dim);
  color: var(--green);
}
.tag-blue {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}
.tag-red {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

/* Opportunity cards */
.opp-card {
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 12px;
  transition: border-color 0.2s;
}
.opp-card:hover { border-color: rgba(16, 185, 129, 0.2); }

.opp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}
.opp-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
}
.opp-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.opp-amount {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--green);
  white-space: nowrap;
}
.opp-description {
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
  margin-bottom: 16px;
}
.opp-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.opp-details {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: rgba(148, 163, 184, 0.7);
}
.opp-actions {
  display: flex;
  gap: 8px;
}

/* Results */
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}
.results-count {
  font-size: 14px;
  font-weight: 600;
}
.results-source {
  font-size: 12px;
  color: var(--slate);
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--navy-light);
}

/* Score */
.score-panel {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
}
.score-result {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.score-main {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.score-badge {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.score-high { background: var(--green-dim); color: var(--green); }
.score-mid { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.score-low { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.score-none { background: var(--navy-light); color: var(--slate); font-size: 16px; }

.score-breakdown {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.score-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.score-bar-label {
  font-size: 12px;
  color: var(--slate);
  width: 120px;
  flex-shrink: 0;
  text-align: right;
}
.score-bar {
  flex: 1;
  height: 6px;
  background: var(--navy-light);
  border-radius: 3px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  background: var(--green);
  border-radius: 3px;
  transition: width 0.5s ease;
}
.score-bar-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  width: 28px;
  text-align: right;
}
.score-list {
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.score-reasoning {
  font-size: 13px;
  color: var(--slate);
  font-style: italic;
  margin-top: 4px;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}
.stat-card-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 4px;
}
.stat-card-value.green { color: var(--green); }
.stat-card-label {
  font-size: 13px;
  color: var(--slate);
}

/* Alert */
.alert-card {
  background: var(--green-dim);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 14px;
}

/* Actions grid */
.actions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.action-card {
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 12px;
  padding: 28px;
  cursor: pointer;
  transition: all 0.2s;
}
.action-card:hover { border-color: rgba(16, 185, 129, 0.3); transform: translateY(-2px); }
.action-icon { font-size: 28px; margin-bottom: 12px; }
.action-card h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
.action-card p {
  font-size: 13px;
  color: var(--slate);
  line-height: 1.5;
}

/* Proposal tabs */
.proposal-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  padding-bottom: 0;
}
.tab {
  background: transparent;
  border: none;
  color: var(--slate);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.tab:hover { color: var(--white); }
.tab.active { color: var(--green); border-bottom-color: var(--green); }

.proposal-content {
  background: var(--navy-mid);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 12px;
  padding: 32px;
}

/* Markdown rendering */
.markdown-body h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin: 24px 0 12px 0;
  color: var(--white);
}
.markdown-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin: 20px 0 8px 0;
  color: var(--white);
}
.markdown-body h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 16px 0 8px 0;
  color: var(--white);
}
.markdown-body p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
  margin-bottom: 12px;
}
.markdown-body strong { color: var(--white); }
.markdown-body ul {
  padding-left: 20px;
  margin: 8px 0 16px;
}
.markdown-body li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  margin-bottom: 4px;
}
.md-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}
.md-table td {
  padding: 8px 12px;
  border: 1px solid rgba(148, 163, 184, 0.1);
  font-size: 13px;
  color: var(--slate);
}
.md-table tr:first-child td {
  font-weight: 600;
  color: var(--white);
  background: var(--navy-light);
}

/* States */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 48px;
  color: var(--slate);
}
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--navy-light);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 48px;
  color: var(--slate);
  font-size: 15px;
}
.error-state {
  text-align: center;
  padding: 24px;
  color: #f87171;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .page-content { padding: 24px; }
  .page-header { flex-direction: column; gap: 16px; }
  .page-title { font-size: 28px; }
  .search-row { flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .actions-grid { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
  .opp-header { flex-direction: column; gap: 8px; }
  .opp-footer { flex-direction: column; gap: 12px; align-items: flex-start; }
  .score-main { flex-direction: column; }
  .score-bar-label { width: 90px; font-size: 11px; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .proposal-tabs { overflow-x: auto; }
}