/* ============================================
   SolarMap.io Design System
   Modern SaaS UI — Neon/Vercel/Linear inspired
   ============================================ */

/* Google Fonts Inter is loaded via CDN in HTML */

/* --- Design Tokens --- */
:root {
  /* Colors — Dark Theme with Golden Accents */
  --color-bg-primary: #0f1629;
  --color-bg-secondary: #0a0e1a;
  --color-bg-tertiary: #1e293b;
  --color-sidebar-bg: #060a14;
  --color-sidebar-hover: rgba(255, 255, 255, 0.07);
  --color-sidebar-active: rgba(245, 158, 11, 0.12);
  --color-sidebar-text: rgba(255, 255, 255, 0.55);
  --color-sidebar-text-active: #ffffff;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.04);
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-accent-light: rgba(245, 158, 11, 0.12);
  --color-success: #10b981;
  --color-success-light: rgba(16, 185, 129, 0.1);
  --color-success-dark: #34d399;
  --color-danger: #ef4444;
  --color-danger-light: rgba(239, 68, 68, 0.1);
  --color-danger-dark: #f87171;
  --color-info: #3b82f6;
  --color-info-light: rgba(59, 130, 246, 0.1);
  --color-info-dark: #60a5fa;
  --color-warning: #f59e0b;
  --color-warning-light: rgba(245, 158, 11, 0.1);
  --color-warning-dark: #fbbf24;
  --color-purple: #8b5cf6;
  --color-purple-light: rgba(139, 92, 246, 0.1);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 0px;
}


/* --- Base & Typography --- */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
  margin-top: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-accent-hover);
}


/* ============================================
   SIDEBAR LAYOUT
   ============================================ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-logo {
  padding: 24px 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 8px;
}
.sidebar-logo img {
  height: 28px;
}
.sidebar-logo .sidebar-app-label {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-section-label {
  font-size: 11px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 16px 12px 6px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-sidebar-text);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}
.sidebar-link:hover {
  background: var(--color-sidebar-hover);
  color: rgba(255, 255, 255, 0.85);
}
.sidebar-link.active {
  background: var(--color-sidebar-active);
  color: var(--color-sidebar-text-active);
}
.sidebar-link i {
  font-size: 18px;
  width: 20px;
  text-align: center;
  opacity: 0.7;
}
.sidebar-link.active i {
  opacity: 1;
}
.sidebar-link.accent {
  color: var(--color-accent);
}
.sidebar-link.accent:hover {
  background: var(--color-accent-light);
}

.sidebar-footer {
  padding: 16px 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-md);
}
.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-user-info {
  flex: 1;
  min-width: 0;
}
.sidebar-user-name {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-user-email {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-logout {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 12px;
  width: 100%;
  justify-content: center;
}
.sidebar-logout:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.2);
}


/* --- Main Content --- */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  padding: 32px 40px;
  background: var(--color-bg-secondary);
  animation: fadeIn 0.3s ease;
}


/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.page-header-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
}
.page-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0;
}


/* ============================================
   CARDS
   ============================================ */
.app-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--transition-normal);
}
.app-card:hover {
  box-shadow: var(--shadow-sm);
}
.app-card-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--color-border-light);
}
.app-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 16px 0;
}


/* --- Stat Cards --- */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-info);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  transition: all var(--transition-normal);
  position: relative;
}
.stat-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.stat-card.accent-green { border-left-color: var(--color-success); }
.stat-card.accent-orange { border-left-color: var(--color-accent); }
.stat-card.accent-blue { border-left-color: var(--color-info); }
.stat-card.accent-purple { border-left-color: var(--color-purple); }
.stat-card.accent-red { border-left-color: var(--color-danger); }

.stat-card-icon {
  position: absolute;
  top: 18px;
  right: 20px;
  font-size: 20px;
  color: var(--color-text-muted);
  opacity: 0.4;
}
.stat-card-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}
.stat-card-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 500;
}


/* ============================================
   TABLES
   ============================================ */
.app-table-wrapper {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.app-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.app-table thead th {
  background: var(--color-bg-secondary);
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.app-table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  vertical-align: middle;
}
.app-table tbody tr:last-child td {
  border-bottom: none;
}
.app-table tbody tr {
  transition: background var(--transition-fast);
}
.app-table tbody tr:hover {
  background: var(--color-bg-tertiary);
}
.app-table .cell-primary {
  color: var(--color-text-primary);
  font-weight: 500;
}
.app-table .cell-mono {
  font-family: var(--font-mono);
  font-size: 13px;
}


/* ============================================
   BADGES
   ============================================ */
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}
.app-badge-success {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}
.app-badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger-dark);
}
.app-badge-info {
  background: var(--color-info-light);
  color: var(--color-info-dark);
}
.app-badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning-dark);
}
.app-badge-purple {
  background: var(--color-purple-light);
  color: var(--color-purple);
}
.app-badge-muted {
  background: var(--color-bg-tertiary);
  color: var(--color-text-muted);
}


/* ============================================
   BUTTONS
   ============================================ */
.app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-sans);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}
.app-btn:active {
  transform: scale(0.98);
}

.app-btn-primary {
  background: var(--color-accent);
  color: white;
}
.app-btn-primary:hover {
  background: var(--color-accent-hover);
  color: white;
}

.app-btn-secondary {
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.app-btn-secondary:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-text-muted);
}

.app-btn-danger {
  background: var(--color-danger-light);
  color: var(--color-danger-dark);
}
.app-btn-danger:hover {
  background: var(--color-danger);
  color: white;
}

.app-btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 8px 12px;
}
.app-btn-ghost:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.app-btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.app-btn i {
  font-size: 16px;
}


/* ============================================
   FORMS
   ============================================ */
.app-form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.app-form-control {
  display: block;
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  line-height: 1.5;
}
.app-form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}
.app-form-control:disabled {
  background: var(--color-bg-tertiary);
  color: var(--color-text-muted);
  cursor: not-allowed;
}
.app-form-control::placeholder {
  color: var(--color-text-muted);
}

select.app-form-control {
  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='%2394a3b8' d='M6 8.825L1.175 4 2.238 2.938 6 6.7 9.763 2.937 10.825 4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.app-form-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

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

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

.app-color-input {
  display: flex;
  align-items: center;
  gap: 10px;
}
.app-color-input input[type="color"] {
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2px;
  cursor: pointer;
}


/* ============================================
   ALERTS
   ============================================ */
.app-alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-bottom: 20px;
  border-left: 3px solid;
  animation: slideDown 0.3s ease;
}
.app-alert-success {
  background: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success-dark);
}
.app-alert-danger {
  background: var(--color-danger-light);
  border-color: var(--color-danger);
  color: var(--color-danger-dark);
}
.app-alert-warning {
  background: var(--color-warning-light);
  border-color: var(--color-warning);
  color: var(--color-warning-dark);
}
.app-alert-info {
  background: var(--color-info-light);
  border-color: var(--color-info);
  color: var(--color-info-dark);
}


/* ============================================
   PAGINATION
   ============================================ */
.app-pagination {
  display: flex;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 24px 0 0 0;
}
.app-pagination a,
.app-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.app-pagination a:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-muted);
  color: var(--color-text-primary);
}
.app-pagination .active span {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}


/* ============================================
   CODE BLOCK
   ============================================ */
.code-block {
  background: #0a0e1a;
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow-x: auto;
}
.code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-all;
}
.code-block .copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--transition-fast);
}
.code-block .copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}


/* ============================================
   QUICK ACTIONS GRID
   ============================================ */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.quick-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.quick-card:hover {
  border-color: var(--color-accent);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}
.quick-card i {
  font-size: 22px;
  color: var(--color-accent);
}
.quick-card-text {
  font-size: 14px;
  font-weight: 500;
}


/* ============================================
   DETAIL LIST (key-value pairs)
   ============================================ */
.detail-grid {
  display: grid;
  gap: 16px;
}
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border-light);
}
.detail-row:last-child {
  border-bottom: none;
}
.detail-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 500;
}
.detail-value {
  font-size: 14px;
  color: var(--color-text-primary);
  font-weight: 500;
  text-align: right;
}


/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-muted);
}
.empty-state i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}
.empty-state p {
  font-size: 15px;
  margin: 0;
}


/* ============================================
   AUTH PAGES
   ============================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a0e1a 0%, #0f1629 50%, #0a0e1a 100%);
  padding: 20px;
  font-family: var(--font-sans);
}

.auth-card {
  background: #141b2d;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  animation: fadeInUp 0.4s ease;
}

.auth-brand {
  text-align: center;
  margin-bottom: 32px;
}
.auth-brand img {
  height: 38px;
}
.auth-brand p {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-top: 6px;
  margin-bottom: 0;
}

.auth-link {
  color: var(--color-text-muted);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.auth-link:hover {
  color: var(--color-accent);
}

.auth-forgot {
  color: var(--color-accent);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.auth-forgot:hover {
  color: var(--color-accent-hover);
}


/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
    padding: 20px 16px;
  }
  .mobile-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-sidebar-bg);
    margin: -20px -16px 20px;
  }
  .mobile-header .hamburger {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
  }
  .mobile-header img {
    height: 24px;
  }
  .mobile-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
  }
  .mobile-overlay.active {
    display: block;
  }
  .stat-cards {
    grid-template-columns: 1fr;
  }
  .app-form-row {
    grid-template-columns: 1fr;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .auth-card {
    padding: 28px 24px;
  }
}

@media (min-width: 769px) {
  .mobile-header {
    display: none;
  }
}