/* ==========================================================================
   Kinship Genealogy - Modern UI CSS Framework
   ========================================================================== */

:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.95);
  --bg-card-solid: #1e293b;
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-gold: #f59e0b;
  --accent-gold-hover: #d97706;
  --success: #10b981;
  --danger: #ef4444;
  --info: #3b82f6;

  --gender-m: #38bdf8;
  --gender-f: #f472b6;
  --gender-u: #a855f7;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --glass-backdrop: blur(16px);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography & Links */
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: #818cf8;
}

h1, h2, h3, h4, h5 {
  color: #ffffff;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: var(--glass-backdrop);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
}
.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent-gold));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}
.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: 30px;
}
.role-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  letter-spacing: 0.05em;
}
.role-admin { background: rgba(239, 68, 68, 0.2); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.4); }
.role-editor { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; border: 1px solid rgba(16, 185, 129, 0.4); }
.role-viewer { background: rgba(59, 130, 246, 0.2); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.4); }

/* Main Container */
.container {
  max-width: 1280px;
  width: 92%;
  margin: 2rem auto;
  flex: 1;
}

/* Flash Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 500;
}
.alert-success { background: rgba(16, 185, 129, 0.15); border: 1px solid var(--success); color: #a7f3d0; }
.alert-error { background: rgba(239, 68, 68, 0.15); border: 1px solid var(--danger); color: #fecaca; }
.alert-info { background: rgba(59, 130, 246, 0.15); border: 1px solid var(--info); color: #bfdbfe; }

/* Dashboard Summary Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
}
.stat-val {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.35rem;
}
.stat-icon {
  font-size: 2.2rem;
  opacity: 0.8;
}

/* Search & Filter Bar */
.filter-bar {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}
.search-box {
  flex: 1;
  min-width: 260px;
  position: relative;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Record Tile Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5rem;
}

.person-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.person-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
  background: var(--bg-card-hover);
}
.person-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}
.person-card.gender-m::before { background: var(--gender-m); }
.person-card.gender-f::before { background: var(--gender-f); }
.person-card.gender-u::before { background: var(--gender-u); }

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  background: #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
}

.card-name {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
}
.card-maiden {
  font-size: 0.82rem;
  color: var(--accent-gold);
}

.card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex: 1;
}
.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 0.85rem;
  margin-top: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-accent { background: var(--accent-gold); color: #000; }
.btn-accent:hover { background: var(--accent-gold-hover); }
.btn-secondary { background: rgba(255, 255, 255, 0.08); color: #fff; border: 1px solid var(--border-color); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); }
.btn-danger { background: rgba(239, 68, 68, 0.2); color: #fca5a5; border: 1px solid var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.82rem; }

/* Table Styling */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}
.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.table th, .table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}
.table th {
  background: rgba(15, 23, 42, 0.8);
  font-size: 0.82rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(255, 255, 255, 0.03); }

/* Profile View Details */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
}
@media (max-width: 850px) {
  .profile-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-bottom: 1.75rem;
}

.panel-title {
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

/* Interactive Tree Visualizer Component */
.tree-controls-bar {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.tree-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 650px;
  background: radial-gradient(circle, rgba(30, 41, 59, 0.4) 1px, transparent 1px);
  background-size: 24px 24px;
  background-color: #0b1120;
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow: hidden;
  cursor: grab;
  user-select: none;
}

.tree-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 2500px;
  height: 2500px;
  pointer-events: none;
  transform-origin: 0 0;
}

.tree-nodes-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 2500px;
  height: 2500px;
  transform-origin: 0 0;
}

.tree-node-card {
  position: absolute;
  width: 200px;
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
  z-index: 10;
}
.tree-node-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  z-index: 20;
}
.tree-node-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.tree-node-card.gender-m::before { background: var(--gender-m); }
.tree-node-card.gender-f::before { background: var(--gender-f); }
.tree-node-card.gender-u::before { background: var(--gender-u); }

.node-role-tag {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.node-card-actions {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.5rem;
}
.node-card-actions .btn {
  padding: 0.15rem 0.4rem;
  font-size: 0.72rem;
}

.tree-search-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  max-height: 220px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: var(--shadow);
  margin-top: 0.25rem;
}
.tree-search-dropdown .search-item {
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background 0.15s ease;
}
.tree-search-dropdown .search-item:hover {
  background: rgba(99, 102, 241, 0.2);
}

/* Dashboard View Mode Switcher (Sleek Segmented Control) */
.view-toggle-group {
  display: inline-flex;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
}

.view-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.45rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.view-toggle-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.view-toggle-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

/* List Mode Transformation */
.cards-grid.mode-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.cards-grid.mode-list .person-card {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-left: 4px solid var(--primary);
}
.cards-grid.mode-list .person-card.gender-m { border-left-color: var(--gender-m); }
.cards-grid.mode-list .person-card.gender-f { border-left-color: var(--gender-f); }
.cards-grid.mode-list .person-card.gender-u { border-left-color: var(--gender-u); }

.cards-grid.mode-list .person-card::before {
  display: none;
}
.cards-grid.mode-list .card-header {
  margin-bottom: 0;
  min-width: 220px;
}
.cards-grid.mode-list .card-meta {
  flex-direction: row;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 0;
  flex-wrap: wrap;
}
.cards-grid.mode-list .card-footer {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* Pagination Controls */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}
.pagination-links {
  display: flex;
  gap: 0.35rem;
}
.page-link {
  padding: 0.4rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}
.page-link.active, .page-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
  color: var(--text-subtle);
  font-size: 0.88rem;
  margin-top: auto;
}