/* ═══════════════════════════════════════════════════════════════════════════
   COMMUNITYOS SHARED STYLES v38
   Design system for post-industrial mutual aid coordination
   ═══════════════════════════════════════════════════════════════════════════ */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Source+Serif+4:ital,wght@0,400;0,600;1,400&display=swap');

/* CSS Variables */
:root {
  --cream: #FAFAF7;
  --deep: #12201E;
  --forest: #182C28;
  --sage: #5B8C7A;
  --coral: #D4704A;
  --teal: #3BA89E;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  
  --max-width: 660px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--deep);
  background: var(--cream);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  color: var(--forest);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--teal);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--forest);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--teal);
  color: white;
}

.btn-primary:hover {
  background: var(--forest);
}

.btn-secondary {
  background: white;
  color: var(--teal);
  border: 1px solid var(--teal);
}

.btn-secondary:hover {
  background: var(--cream);
}

.btn-coral {
  background: var(--coral);
  color: white;
}

.btn-coral:hover {
  background: #c0613f;
}

.btn-outline {
  background: transparent;
  color: var(--deep);
  border: 1px solid var(--sage);
}

.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.8rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--deep);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--deep);
  background: white;
  border: 1px solid var(--sage);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(59, 168, 158, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background: white;
  border: 1px solid var(--sage);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--teal);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: var(--spacing-xs);
}

.card-meta {
  font-size: 0.85rem;
  color: var(--deep);
  opacity: 0.7;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-success {
  background: #d4edda;
  color: #155724;
}

.badge-warning {
  background: #fff3cd;
  color: #856404;
}

.badge-danger {
  background: #f8d7da;
  color: #721c24;
}

.badge-info {
  background: #d1ecf1;
  color: #0c5460;
}

/* Tabs */
.tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--sage);
  padding-bottom: var(--spacing-sm);
  overflow-x: auto;
}

.tab {
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--deep);
  background: none;
  border: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab:hover {
  background: rgba(91, 140, 122, 0.1);
}

.tab.active {
  background: var(--teal);
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--deep);
  opacity: 0.7;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 100;
  padding: var(--spacing-md);
}

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

.modal {
  background: var(--cream);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  max-width: 400px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: var(--spacing-md);
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* Alert Banner */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.alert-danger {
  background: #f8d7da;
  border: 1px solid #f5c6cb;
  color: #721c24;
}

.alert-warning {
  background: #fff3cd;
  border: 1px solid #ffeeba;
  color: #856404;
}

.alert-success {
  background: #d4edda;
  border: 1px solid #c3e6cb;
  color: #155724;
}

.alert-info {
  background: #d1ecf1;
  border: 1px solid #bee5eb;
  color: #0c5460;
}

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--sage);
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--forest);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.back-link {
  color: var(--teal);
  font-size: 0.9rem;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { opacity: 0.7; }
.text-small { font-size: 0.85rem; }
.text-teal { color: var(--teal); }
.text-coral { color: var(--coral); }
.text-forest { color: var(--forest); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { justify-content: center; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

/* Offline Indicator */
.offline-indicator {
  position: fixed;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--forest);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  display: none;
  box-shadow: var(--shadow-md);
}

.offline-indicator.show {
  display: block;
}

/* Loading Spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--sage);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Severity Colors */
.severity-critical { color: #dc3545; }
.severity-high { color: var(--coral); }
.severity-medium { color: #ffc107; }
.severity-low { color: var(--teal); }
.severity-info { color: var(--sage); }

/* Dark Mode - MUST BE LAST */
@media (prefers-color-scheme: dark) {
  :root {
    --cream: #0f1614;
    --deep: #e8ebe9;
    --forest: #a8c4bc;
  }
  
  .card,
  .form-input,
  .form-select,
  .form-textarea,
  .modal {
    background: #1a2421;
    border-color: #2d3d38;
  }
  
  .btn-secondary {
    background: #1a2421;
  }
}