:root {
    --bg-dark: #0b0f19;
    --bg-card: rgba(19, 26, 43, 0.7);
    --bg-card-border: rgba(255, 255, 255, 0.08);
    --bg-card-hover: rgba(30, 41, 67, 0.8);
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    
    --accent-teal: #14b8a6;
    --accent-purple: #a855f7;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    --accent-emerald: #10b981;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.15);
    --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(168, 85, 247, 0.1) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(20, 184, 166, 0.08) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(11, 15, 25, 0.8);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Navbar */
.app-header {
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--bg-card-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.85rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    box-shadow: 0 0 15px var(--primary-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-item {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-item:hover, .nav-item.active {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.admin-btn {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    border: 1px solid rgba(99, 102, 241, 0.4);
    color: #a5b4fc;
}

.nav-item.admin-btn:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.35), rgba(168, 85, 247, 0.35));
    color: white;
    box-shadow: var(--shadow-glow);
}

/* Layout Body */
.main-content {
    flex: 1;
    padding: 2.5rem 2rem;
    max-width: 1320px;
    width: 100%;
    margin: 0 auto;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 2rem;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.glass-card.hover-lift:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* Hero & Guest Portal Styling */
.portal-wrapper {
    max-width: 580px;
    margin: 2rem auto;
}

.portal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.portal-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #ffffff 30%, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.portal-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.form-control-glass {
    width: 100%;
    background: rgba(11, 15, 25, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.2rem;
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-control-glass:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(11, 15, 25, 0.85);
}

.btn-gradient-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.95rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-gradient-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45);
}

.btn-gradient-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Credentials Output Box */
.credentials-box {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08), rgba(99, 102, 241, 0.12));
    border: 1px solid rgba(20, 184, 166, 0.3);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    margin-top: 1.5rem;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.cred-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(11, 15, 25, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

.cred-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.cred-value {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-teal);
    letter-spacing: 0.05em;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.primary { background: rgba(99, 102, 241, 0.15); color: var(--primary); }
.stat-icon.teal { background: rgba(20, 184, 166, 0.15); color: var(--accent-teal); }
.stat-icon.amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.stat-icon.emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }

.stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Data Table */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--bg-card-border);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.925rem;
}

.custom-table th {
    background: rgba(15, 22, 38, 0.95);
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--bg-card-border);
}

.custom-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-main);
    vertical-align: middle;
}

.custom-table tbody tr {
    transition: background 0.15s ease;
}

.custom-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.badge-emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-rose { background: rgba(244, 63, 94, 0.15); color: #fda4af; border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-primary { background: rgba(99, 102, 241, 0.15); color: #a5b4fc; border: 1px solid rgba(99, 102, 241, 0.3); }

/* Progress Bar */
.progress-bar-bg {
    background: rgba(255, 255, 255, 0.08);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    width: 100%;
    margin-top: 0.35rem;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.4s ease;
}

.progress-bar-fill.normal { background: linear-gradient(90deg, var(--accent-teal), var(--primary)); }
.progress-bar-fill.warning { background: linear-gradient(90deg, var(--accent-amber), var(--accent-rose)); }

/* Tabs */
.tab-nav {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--bg-card-border);
    margin-bottom: 2rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.85rem 1.5rem;
    cursor: pointer;
    position: relative;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    box-shadow: var(--shadow-glow);
}

/* Action Buttons */
.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.16);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.15);
    color: #fda4af;
    border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    background: rgba(244, 63, 94, 0.3);
    color: white;
}

/* Footer */
.app-footer {
    border-top: 1px solid var(--bg-card-border);
    padding: 1.5rem 2rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
}