@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #000000;
  --bg-subtle: #0A0A0A;
  --surface: #111111;
  --surface-hover: #1A1A1A;
  --border: #222222;
  --border-focus: #444444;
  --text-primary: #EDEDED;
  --text-secondary: #888888;
  --text-muted: #666666;
  
  --primary: #EDEDED;
  --primary-invert: #000000;
  --accent: #3b82f6; 
  --accent-glow: rgba(59, 130, 246, 0.2);
  
  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #EF4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  
  --font: 'Inter', -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5);
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-focus); }

/* PASSWORD SCREEN */
#passwordScreen {
  display: flex; justify-content: center; align-items: center; min-height: 100vh;
  background: radial-gradient(circle at center, var(--bg-subtle) 0%, var(--bg) 100%);
}
#passwordScreen.hidden { display: none; }

.password-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px; text-align: center;
  width: 90%; max-width: 400px;
  box-shadow: var(--shadow-xl);
}
.password-card h1 { font-size: 1.5rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; letter-spacing: -0.02em; }
.password-card p { color: var(--text-secondary); margin-bottom: 24px; font-size: 0.875rem; }
.password-card input { margin-bottom: 16px; text-align: center; letter-spacing: 2px; }
.password-error { color: var(--danger); font-size: 0.82rem; margin-top: 12px; display: none; }
.password-error.show { display: block; }

/* APP LAYOUT */
#mainContent { display: none; }
#mainContent.show { display: flex; min-height: 100vh; }

/* SIDEBAR */
.app-tabbar {
  width: 240px; min-height: 100vh; flex-shrink: 0;
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 4px;
  padding: 24px 16px; position: fixed;
  left: 0; top: 0; bottom: 0; overflow-y: auto; z-index: 50;
}

.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 24px; }
.brand-icon {
  width: 28px; height: 28px; border-radius: var(--radius-sm);
  background: var(--text-primary); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.8rem;
}
.brand-text { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em; }
.brand-badge { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; background: var(--surface); color: var(--text-secondary); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border); }

.app-tab {
  display: flex; align-items: center; gap: 12px;
  border: none; border-radius: var(--radius-md); background: transparent;
  color: var(--text-secondary); font-family: var(--font); font-size: 0.875rem; font-weight: 500;
  cursor: pointer; padding: 8px 12px; text-align: left; width: 100%;
  transition: all 0.2s ease;
}
.app-tab:hover { background: var(--surface); color: var(--text-primary); }
.app-tab.active { background: var(--surface); color: var(--text-primary); font-weight: 600; }

.container { margin-left: 240px; flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--bg-subtle); }

/* TOPBAR */
.app-topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 32px; height: 60px;
  background: rgba(10, 10, 10, 0.8); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30; flex-shrink: 0;
}
.topbar-title { font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); display: flex; align-items: center; gap: 8px;}
.topbar-title .slash { color: var(--border-focus); }
.topbar-title .current { color: var(--text-primary); font-weight: 600; }

.topbar-actions { display: flex; align-items: center; gap: 12px; }

/* CONTENT AREA */
.app-shell { padding: 32px; flex: 1; max-width: 1200px; margin: 0 auto; width: 100%; }
.app-section { display: none; animation: fadeUp 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.app-section.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.section-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 24px; }
.section-title { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; color: var(--text-primary); margin-bottom: 4px; }
.section-hint { font-size: 0.875rem; color: var(--text-secondary); max-width: 600px; line-height: 1.5; }

/* CARDS */
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 24px; overflow: hidden; }
.card-header { padding: 20px 24px; border-bottom: 1px solid var(--border); background: var(--bg); display: flex; justify-content: space-between; align-items: center; }
.card-header h2 { font-size: 1rem; font-weight: 600; color: var(--text-primary); }
.card-body { padding: 24px; }

/* FORMS */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full-width { grid-column: 1 / -1; }

label { font-size: 0.8rem; font-weight: 500; color: var(--text-secondary); }

input, select, textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text-primary);
  padding: 10px 12px; border-radius: var(--radius-md); font-family: var(--font); font-size: 0.875rem;
  transition: all 0.2s ease; box-shadow: 0 1px 2px rgba(0,0,0,0.1) inset;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--text-secondary); box-shadow: 0 0 0 1px var(--text-secondary); }
input::placeholder, textarea::placeholder { color: var(--text-muted); }
select option { background: var(--surface); color: var(--text-primary); }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font); font-size: 0.875rem; font-weight: 500;
  padding: 8px 16px; border-radius: var(--radius-md); border: 1px solid transparent;
  cursor: pointer; transition: all 0.2s ease; white-space: nowrap; text-decoration: none;
}
.btn:disabled { opacity: 0.5; pointer-events: none; }

.btn-primary { background: var(--text-primary); color: var(--primary-invert); }
.btn-primary:hover { background: #FFFFFF; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(255,255,255,0.1); }

.btn-secondary { background: var(--surface); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--border-focus); }

.btn-danger { background: var(--bg); color: var(--danger); border: 1px solid var(--danger-bg); }
.btn-danger:hover { background: var(--danger-bg); border-color: var(--danger); }

.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid transparent; padding: 6px 12px; }
.btn-ghost:hover { background: var(--surface); color: var(--text-primary); }

/* TABLES */
.table-container { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th { font-size: 0.75rem; font-weight: 500; color: var(--text-secondary); padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--bg-subtle); white-space: nowrap; }
td { font-size: 0.875rem; color: var(--text-primary); padding: 16px 24px; border-bottom: 1px solid var(--border); vertical-align: top; }
tbody tr { transition: background 0.2s ease; }
tbody tr:hover { background: var(--surface); }
tbody tr:last-child td { border-bottom: none; }

.table-meta { color: var(--text-secondary); display: block; font-size: 0.8rem; margin-top: 4px; }
.key-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 0.8rem; letter-spacing: 0.02em; color: var(--text-secondary); background: var(--surface); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border); display: inline-block; }

/* BADGES */
.badge { display: inline-flex; align-items: center; justify-content: center; padding: 2px 8px; border-radius: 9999px; font-size: 0.75rem; font-weight: 500; border: 1px solid transparent; }
.badge-active  { background: var(--success-bg); color: var(--success); border-color: rgba(16, 185, 129, 0.2); }
.badge-expired { background: var(--danger-bg); color: var(--danger); border-color: rgba(239, 68, 68, 0.2); }
.badge-revoked { background: var(--surface); color: var(--text-secondary); border-color: var(--border); }
.badge-pending { background: var(--warning-bg); color: var(--warning); border-color: rgba(245, 158, 11, 0.2); }

/* DROPDOWN MENU */
.dropdown { position: relative; display: inline-block; }
.dropdown-content {
  display: none; position: absolute; right: 0; top: calc(100% + 4px);
  background-color: var(--surface); min-width: 160px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--border); border-radius: var(--radius-md);
  z-index: 100; padding: 4px; animation: scaleIn 0.15s cubic-bezier(0.16, 1, 0.3, 1); transform-origin: top right;
}
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.dropdown.show .dropdown-content { display: block; }
.dropdown-item {
  color: var(--text-primary); padding: 8px 12px; text-decoration: none; display: flex; align-items: center; gap: 8px;
  font-size: 0.875rem; border-radius: 4px; cursor: pointer; border: none; background: transparent; width: 100%; text-align: left;
}
.dropdown-item:hover { background-color: var(--border); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background-color: var(--danger-bg); }

/* STATS GRID */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; display: flex; flex-direction: column; gap: 8px;
  transition: all 0.2s ease; position: relative; overflow: hidden;
}
.stat-card:hover { border-color: var(--border-focus); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.stat-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.stat-label { font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); }
.stat-icon { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.stat-icon.blue { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
.stat-icon.green { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.stat-icon.purple { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }
.stat-icon.red { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.stat-value { font-size: 2rem; font-weight: 600; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1; }
.stat-sub { font-size: 0.75rem; color: var(--text-muted); }

/* MODALS */
.modal-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.8); backdrop-filter: blur(4px); z-index: 1000; align-items: center; justify-content: center; padding: 24px; }
.modal-backdrop.show { display: flex; animation: fadeInModal 0.2s ease; }
@keyframes fadeInModal { from { opacity: 0; } to { opacity: 1; } }

.modal-panel { background: var(--bg); width: 100%; max-width: 500px; border-radius: var(--radius-xl); border: 1px solid var(--border); box-shadow: var(--shadow-xl); overflow: hidden; animation: slideUpModal 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes slideUpModal { from { opacity: 0; transform: translateY(20px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { font-size: 1.125rem; font-weight: 600; color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer { padding: 20px 24px; border-top: 1px solid var(--border); background: var(--bg-subtle); display: flex; justify-content: flex-end; gap: 12px; }

/* SLIDE-OVER PANEL */
.slideover-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(2px); z-index: 1100; justify-content: flex-end; }
.slideover-backdrop.show { display: flex; animation: fadeInModal 0.2s ease; }
.slideover-panel { background: var(--bg); width: 100%; max-width: 600px; height: 100%; border-left: 1px solid var(--border); box-shadow: -10px 0 30px rgba(0,0,0,0.5); display: flex; flex-direction: column; animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }

.slideover-header { padding: 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: flex-start; }
.slideover-body { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 24px; }
.slideover-meta { font-size: 0.875rem; color: var(--text-secondary); margin-top: 8px; line-height: 1.5; }

/* MINI TABLES IN SLIDEOVER */
.mini-table { font-size: 0.8rem; }
.mini-table th { padding: 8px 12px; background: transparent; }
.mini-table td { padding: 12px; }

/* MISC */
.toolbar-wrap { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; padding: 20px 24px; border-bottom: 1px solid var(--border); background: var(--bg); }
.toolbar-filters { display: flex; flex-wrap: wrap; gap: 12px; flex: 1; }
.toolbar-filters .form-group { flex: 1; min-width: 140px; margin-bottom: 0; }
.toolbar-actions { display: flex; gap: 8px; }

.pagination-bar { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; border-top: 1px solid var(--border); background: var(--bg); }
.pagination-controls { display: flex; align-items: center; gap: 8px; }

.connection-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 9999px; font-size: 0.75rem; font-weight: 500; border: 1px solid var(--border); color: var(--text-secondary); background: var(--surface); }
.connection-chip::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.connection-chip.connected { color: var(--success); border-color: rgba(16, 185, 129, 0.3); background: var(--success-bg); }
.connection-chip.disconnected { color: var(--danger); border-color: rgba(239, 68, 68, 0.3); background: var(--danger-bg); }

.setup-notice { background: var(--warning-bg); border: 1px solid rgba(245, 158, 11, 0.2); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 24px; }
.setup-notice h3 { color: var(--warning); font-size: 1rem; margin-bottom: 8px; font-weight: 600; }

#loadingOverlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(2px); justify-content: center; align-items: center; z-index: 2000; }
#loadingOverlay.show { display: flex; }
.spinner { width: 32px; height: 32px; border: 3px solid var(--surface-hover); border-top-color: var(--text-primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.message { position: fixed; top: 24px; right: 24px; padding: 12px 20px; border-radius: var(--radius-md); font-size: 0.875rem; font-weight: 500; z-index: 2100; box-shadow: var(--shadow-lg); transition: all 0.3s ease; transform: translateY(-20px); opacity: 0; pointer-events: none; }
.message.show { transform: translateY(0); opacity: 1; }
.message.success { background: var(--success-bg); border: 1px solid rgba(16, 185, 129, 0.3); color: var(--success); }
.message.error   { background: var(--danger-bg); border: 1px solid rgba(239, 68, 68, 0.3); color: var(--danger); }

/* Helpers */
.flex-row { display: flex; align-items: center; gap: 8px; }
.flex-1 { flex: 1; }
.text-muted { color: var(--text-muted); font-size: 0.875rem; }