*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --glass-bg: rgba(255,255,255,0.55);
  --glass-border: rgba(255,255,255,0.45);
  --glass-shadow: 0 8px 32px rgba(31,38,135,0.12);
  --glass-blur: blur(18px);
  --primary: #6366f1; --primary-hover: #4f46e5; --primary-light: rgba(99,102,241,0.12);
  --danger: #ef4444; --danger-light: rgba(239,68,68,0.12);
  --success: #22c55e; --success-light: rgba(34,197,94,0.12);
  --warning: #f59e0b; --warning-light: rgba(245,158,11,0.12);
  --info: #06b6d4; --info-light: rgba(6,182,212,0.12);
  --text: #1e293b; --text-secondary: #64748b;
  --radius: 12px; --radius-lg: 20px;
  --sidebar-w: 260px; --topbar-h: 64px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}
html { font-size: 14px; }
body {
  font-family: var(--font); color: var(--text); line-height: 1.6;
  background: linear-gradient(135deg, #e0e7ff 0%, #f0f4ff 30%, #fce7f3 60%, #e0f2fe 100%);
  background-attachment: fixed; min-height: 100vh;
}

/* Layout */
.app-layout { display: flex; min-height: 100vh; }
.main-content { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; }
.content-area { padding: 28px; flex: 1; }

/* Sidebar - Glass */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-w);
  background: rgba(255,255,255,0.5); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column; z-index: 100;
  box-shadow: 4px 0 24px rgba(31,38,135,0.06);
}
.sidebar-header { padding: 22px 18px; border-bottom: 1px solid rgba(255,255,255,0.5); }
.sidebar-brand {
  display: flex; align-items: center; gap: 10px; font-size: 1.2rem;
  font-weight: 700; color: var(--text); text-decoration: none;
}
.sidebar-brand svg { color: var(--primary); }
.sidebar-nav { flex: 1; padding: 14px 10px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 11px 14px;
  border-radius: var(--radius); color: var(--text-secondary); font-weight: 500;
  transition: all .2s; text-decoration: none; margin-bottom: 3px;
}
.nav-item:hover { background: rgba(255,255,255,0.55); color: var(--text); text-decoration: none; }
.nav-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.sidebar-footer { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.5); }

/* Topbar - Glass */
.topbar {
  height: var(--topbar-h);
  background: rgba(255,255,255,0.45); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  display: flex; align-items: center; padding: 0 28px; gap: 16px;
}
.menu-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--text-secondary); }
.search-bar {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.5); border-radius: var(--radius);
  padding: 9px 14px; flex: 1; max-width: 400px;
  border: 1px solid var(--glass-border);
  transition: border-color .2s, box-shadow .2s;
}
.search-bar:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.search-bar svg { color: var(--text-secondary); flex-shrink: 0; }
.search-bar input { border: none; background: none; outline: none; width: 100%; font-size: .9rem; color: var(--text); }
.search-bar input::placeholder { color: var(--text-secondary); opacity: .6; }

/* Cards - Glass */
.card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow); overflow: hidden;
}
.card-header {
  padding: 18px 22px; border-bottom: 1px solid rgba(255,255,255,0.4);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h3 { font-size: 1rem; font-weight: 600; }
.card--form { max-width: 680px; margin: 0 auto; padding: 24px; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.stat-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); border: 1px solid var(--glass-border);
  padding: 22px; box-shadow: var(--glass-shadow);
  transition: transform .2s, box-shadow .2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(31,38,135,0.15); }
.stat-value { font-size: 2rem; font-weight: 700; color: var(--text); }
.stat-label { font-size: .85rem; color: var(--text-secondary); margin-top: 4px; }

/* Vault Grid */
.vault-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.vault-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow); transition: transform .2s, box-shadow .2s; overflow: hidden;
}
.vault-card:hover { transform: translateY(-3px); box-shadow: 0 16px 48px rgba(31,38,135,0.18); }
.vault-card-header { padding: 14px 18px 0; display: flex; justify-content: space-between; align-items: center; }
.vault-card-body { display: block; padding: 10px 18px 14px; text-decoration: none; color: inherit; }
.vault-card-body:hover { text-decoration: none; }
.vault-card-title { font-weight: 600; color: var(--text); margin-bottom: 4px; }
.vault-card-user { color: var(--text-secondary); font-size: .85rem; }
.vault-card-url { font-size: .8rem; margin-top: 2px; opacity: .7; }
.vault-card-footer {
  padding: 10px 18px; border-top: 1px solid rgba(255,255,255,0.4);
  display: flex; justify-content: space-between; align-items: center;
}
.favorite-btn { background: none; border: none; cursor: pointer; padding: 2px; }

/* Table */
.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  padding: 12px 18px; text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.3);
}
.table th {
  font-weight: 600; color: var(--text-secondary); font-size: .8rem;
  text-transform: uppercase; letter-spacing: .05em;
  background: rgba(255,255,255,0.25);
}
.table tbody tr:hover { background: rgba(255,255,255,0.2); }
.table a { font-weight: 500; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px;
  border-radius: var(--radius); font-weight: 500; font-size: .9rem;
  border: 1px solid transparent; cursor: pointer;
  transition: all .2s; text-decoration: none; font-family: var(--font);
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--primary); color: #fff; box-shadow: 0 2px 12px rgba(99,102,241,0.3);
}
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 20px rgba(99,102,241,0.4); transform: translateY(-1px); }
.btn-secondary {
  background: rgba(255,255,255,0.5); color: var(--text); border-color: var(--glass-border);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.btn-secondary:hover { background: rgba(255,255,255,0.7); }
.btn-danger {
  background: var(--danger); color: #fff; box-shadow: 0 2px 12px rgba(239,68,68,0.3);
}
.btn-danger:hover { background: #dc2626; box-shadow: 0 4px 20px rgba(239,68,68,0.4); transform: translateY(-1px); }
.btn-sm { padding: 5px 12px; font-size: .8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon {
  background: rgba(255,255,255,0.4); border: 1px solid var(--glass-border);
  cursor: pointer; padding: 6px; color: var(--text-secondary);
  border-radius: 8px; display: inline-flex; transition: all .2s;
}
.btn-icon:hover { color: var(--primary); background: var(--primary-light); border-color: transparent; }

/* Forms */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 6px; color: var(--text); font-size: .9rem; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  font-size: .9rem; font-family: var(--font);
  transition: border-color .2s, box-shadow .2s;
  background: rgba(255,255,255,0.5); color: var(--text);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light);
  background: rgba(255,255,255,0.7);
}
input::placeholder, textarea::placeholder { color: var(--text-secondary); opacity: .5; }
textarea { resize: vertical; min-height: 90px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-actions {
  display: flex; justify-content: flex-end; gap: 10px;
  margin-top: 22px; padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.4);
}
.input-group { display: flex; gap: 8px; }
.input-group input { flex: 1; }
.input-sm { padding: 7px 12px; font-size: .85rem; }

/* Badges */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 20px;
  font-size: .75rem; font-weight: 600;
  background: rgba(255,255,255,0.5); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255,255,255,0.3);
}
.badge-info { color: var(--info); background: var(--info-light); }
.badge-success { color: var(--success); background: var(--success-light); }
.badge-danger { color: var(--danger); background: var(--danger-light); }
.badge-warning { color: var(--warning); background: var(--warning-light); }

/* Auth Pages */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #e0e7ff 0%, #f0f4ff 30%, #fce7f3 60%, #e0f2fe 100%);
  background-attachment: fixed;
}
.auth-container { width: 100%; max-width: 420px; padding: 20px; }
.auth-card {
  background: rgba(255,255,255,0.5); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); border: 1px solid var(--glass-border);
  box-shadow: 0 20px 60px rgba(31,38,135,0.15); padding: 36px;
}
.auth-header { text-align: center; margin-bottom: 28px; }
.auth-header h1 { font-size: 1.6rem; margin: 12px 0 4px; color: var(--text); }
.auth-header p { color: var(--text-secondary); font-size: .9rem; }

/* Item Detail */
.item-detail { padding: 26px; }
.detail-row { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.3); }
.detail-row:last-child { border-bottom: none; }
.detail-row label {
  font-weight: 600; color: var(--text-secondary); font-size: .8rem;
  text-transform: uppercase; letter-spacing: .03em; display: block; margin-bottom: 5px;
}
.detail-value { display: flex; align-items: center; gap: 10px; }
.password-masked { letter-spacing: 3px; font-family: monospace; font-size: 1.1rem; }
.notes-display {
  background: rgba(255,255,255,0.3); padding: 12px; border-radius: var(--radius);
  font-family: monospace; font-size: .85rem; white-space: pre-wrap; margin: 0;
  border: 1px solid var(--glass-border);
}
.code-input {
  text-align: center; font-size: 1.5rem !important; letter-spacing: 8px;
  font-family: monospace; background: rgba(255,255,255,0.3) !important;
}

/* Page Header */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-header h2 { font-size: 1.5rem; font-weight: 700; color: var(--text); }

/* Toolbar */
.toolbar { margin-bottom: 22px; }
.toolbar-filters { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* Empty State */
.empty-state { text-align: center; padding: 56px 24px; color: var(--text-secondary); }
.empty-state h3 { margin: 16px 0 8px; color: var(--text); }
.empty-state p { margin-bottom: 18px; }

/* Toasts */
.toast {
  padding: 13px 18px; border-radius: var(--radius); margin-bottom: 14px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .9rem; backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  animation: slideDown .3s ease;
}
.toast-success { background: rgba(34,197,94,0.15); color: var(--success); }
.toast-error { background: rgba(239,68,68,0.15); color: var(--danger); }
@keyframes slideDown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: translateY(0); } }

/* Modal */
.modal {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15,23,42,0.4); backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; z-index: 200;
}
.modal-content {
  background: rgba(255,255,255,0.7); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); width: 90%; max-width: 500px;
  border: 1px solid var(--glass-border);
  box-shadow: 0 20px 60px rgba(31,38,135,0.2);
}
.modal-header {
  padding: 18px 22px; border-bottom: 1px solid rgba(255,255,255,0.4);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 1.1rem; }
.modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-secondary); }
.modal-body { padding: 22px; }
.modal-footer { padding: 16px 22px; border-top: 1px solid rgba(255,255,255,0.4); display: flex; justify-content: flex-end; }
.password-result {
  background: rgba(255,255,255,0.4); padding: 14px; border-radius: var(--radius);
  font-family: monospace; font-size: 1rem; word-break: break-all; margin-top: 14px;
  border: 1px solid var(--glass-border);
}

/* Utilities */
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: .8rem; }
.mt-1 { margin-top: 8px; }
.mt-4 { margin-top: 24px; }
.mb-4 { margin-bottom: 24px; }
.flex { display: flex; }
.gap-2 { gap: 8px; }

/* Password Strength */
.strength-bar {
  height: 5px; border-radius: 4px;
  background: rgba(255,255,255,0.4); margin-top: 8px; overflow: hidden;
}
.strength-fill { height: 100%; border-radius: 4px; transition: width .3s, background .3s; }
.strength-weak .strength-fill { width: 25%; background: var(--danger); }
.strength-fair .strength-fill { width: 50%; background: var(--warning); }
.strength-good .strength-fill { width: 75%; background: #eab308; }
.strength-strong .strength-fill { width: 100%; background: var(--success); }
.strength-label { font-size: .75rem; margin-top: 4px; font-weight: 500; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148,163,184,0.5); }

/* Responsive */
@media (max-width: 1100px) {
  .form-row { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%); transition: transform .3s ease;
    background: rgba(255,255,255,0.65);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .menu-toggle { display: block; }
  .card--form { max-width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .vault-grid { grid-template-columns: 1fr; }
  .topbar { padding: 0 18px; }
  .content-area { padding: 18px; }
}