/* ==========================================
   MODERN WEB MONITOR THEME
   Dark Mode Support | Glassmorphism | Animations
   ========================================== */

:root {
    /* Modern Color Palette - Light Mode */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* Dark Mode Variables */
[data-bs-theme="dark"] {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --border-color: #4a5568;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --glass-bg: rgba(45, 55, 72, 0.7);
    --glass-border: rgba(74, 85, 104, 0.18);
}

/* ==========================================
   BASE STYLES
   ========================================== */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition-base);
    overflow-x: hidden;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* ==========================================
   NAVBAR - GLASSMORPHISM STYLE
   ========================================== */

.navbar-modern {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
    transition: var(--transition-base);
}

    .navbar-modern.scrolled {
        box-shadow: var(--shadow-md);
    }

/* Brand Styling */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 12px;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.navbar-brand:hover .brand-icon {
    transform: rotate(5deg) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.brand-text {
    font-size: 1.4rem;
    font-weight: 700;
}

.brand-name {
    color: var(--text-primary);
}

.brand-accent {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Nav Links */
.navbar-modern .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 10px;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

    .navbar-modern .nav-link::before {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 0;
        height: 2px;
        background: var(--primary-gradient);
        transition: var(--transition-base);
        transform: translateX(-50%);
    }

    .navbar-modern .nav-link:hover {
        color: var(--text-primary) !important;
        background: var(--bg-tertiary);
    }

        .navbar-modern .nav-link:hover::before {
            width: 80%;
        }

    .navbar-modern .nav-link.active {
        color: var(--text-primary) !important;
        background: var(--bg-tertiary);
        font-weight: 600;
    }

        .navbar-modern .nav-link.active::before {
            width: 80%;
        }

/* Dropdown Menu */
.dropdown-menu-modern {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    animation: dropdownFade 0.2s ease;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-menu-modern .dropdown-item {
    border-radius: 8px;
    padding: 0.6rem 1rem;
    transition: var(--transition-fast);
    font-weight: 500;
}

    .dropdown-menu-modern .dropdown-item:hover {
        background: var(--bg-tertiary);
        transform: translateX(5px);
    }

/* Icon Buttons */
.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    position: relative;
}

    .btn-icon:hover {
        background: var(--bg-tertiary);
        color: var(--text-primary);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* ==========================================
   MAIN CONTENT
   ========================================== */

.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.content-wrapper {
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   CARDS & CONTAINERS
   ========================================== */

.card-modern {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    overflow: hidden;
}

    .card-modern:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
    }

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

/* ==========================================
   STAT CARDS (Dashboard)
   ========================================== */

.stat-card {
    background: var(--bg-primary);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

    .stat-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: var(--primary-gradient);
        transform: scaleX(0);
        transition: var(--transition-base);
    }

    .stat-card:hover::before {
        transform: scaleX(1);
    }

    .stat-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-5px);
    }

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1rem;
}

    .stat-icon.primary {
        background: var(--primary-gradient);
    }

    .stat-icon.success {
        background: var(--success-gradient);
    }

    .stat-icon.danger {
        background: var(--danger-gradient);
    }

    .stat-icon.warning {
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    }

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn-gradient {
    background: var(--primary-gradient);
    border: none;
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

    .btn-gradient:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
        filter: brightness(1.1);
    }

.btn-outline-modern {
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    background: transparent;
    transition: var(--transition-fast);
}

    .btn-outline-modern:hover {
        background: var(--bg-tertiary);
        transform: translateY(-2px);
    }

/* ==========================================
   TABLES
   ========================================== */

.table-modern {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

    .table-modern thead {
        background: var(--bg-tertiary);
        font-weight: 600;
        color: var(--text-primary);
        text-transform: uppercase;
        font-size: 0.85rem;
        letter-spacing: 0.5px;
    }

    .table-modern tbody tr {
        transition: var(--transition-fast);
        border-bottom: 1px solid var(--border-color);
    }

        .table-modern tbody tr:hover {
            background: var(--bg-secondary);
            transform: scale(1.01);
        }

        .table-modern tbody tr:last-child {
            border-bottom: none;
        }

/* ==========================================
   BADGES & PILLS
   ========================================== */

.badge-modern {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.badge-success-modern {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.badge-danger-modern {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: white;
}

.badge-warning-modern {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer-modern {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

    .footer-link:hover {
        color: var(--text-primary);
    }

.footer-separator {
    color: var(--text-muted);
}

.footer-version {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
}

/* ==========================================
   LOADING OVERLAY
   ========================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

    .loading-overlay.hidden {
        opacity: 0;
        pointer-events: none;
    }

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto;
    border: 4px solid var(--border-color);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 1rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    .stat-card {
        padding: 1.5rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .footer-links {
        justify-content: flex-start;
        margin-top: 1rem;
    }
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-slide-left {
    animation: slideInFromLeft 0.6s ease;
}

.animate-slide-right {
    animation: slideInFromRight 0.6s ease;
}