/* Premium Design System & Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* Color Variables */
:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Light Mode Tokens */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --surface-glass: rgba(255, 255, 255, 0.7);
    --surface-border: rgba(226, 232, 240, 0.8);
    --text-main: #0f172a;
    --text-muted: #64748b;
    
    --color-primary: #4f46e5;
    --color-primary-glow: rgba(79, 70, 229, 0.15);
    --color-secondary: #06b6d4;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    
    --sidebar-width: 260px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 50px rgba(79, 70, 229, 0.08);
}

[data-theme="dark"] {
    /* Dark Mode Tokens */
    --bg-primary: #090d16;
    --bg-secondary: #111827;
    --surface-glass: rgba(17, 24, 39, 0.7);
    --surface-border: rgba(255, 255, 255, 0.08);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    
    --color-primary: #6366f1;
    --color-primary-glow: rgba(99, 102, 241, 0.25);
    --color-secondary: #22d3ee;
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-danger: #f87171;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.4);
}

/* Global Styles */
body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-body);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* Glassmorphism Container */
.glass-card {
    background: var(--surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-glow);
}

/* Premium Buttons */
.btn-premium {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 500;
    padding: 0.6rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--color-primary-glow);
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--color-primary-glow);
    opacity: 0.95;
    color: #fff;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--surface-border);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
}

.sidebar .brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.sidebar-item {
    margin-bottom: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.8rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar-link:hover, .sidebar-link.active {
    background-color: var(--color-primary-glow);
    color: var(--color-primary);
}

.sidebar-link.active {
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

/* Main Content Wrapper */
.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2rem;
    min-height: 100vh;
    transition: all 0.3s ease;
}

/* Stat Cards */
.stat-card {
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--surface-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    border-color: var(--color-primary-glow);
    box-shadow: var(--shadow-md);
}

.stat-card .icon-wrapper {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-primary-glow);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-card .stat-val {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 0.2rem;
}

.stat-card .stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Custom Table Styling */
.table-premium {
    background: var(--bg-secondary);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.table-premium th {
    background-color: var(--bg-primary);
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-weight: 600;
    border-bottom: 2px solid var(--surface-border);
    padding: 1rem;
}

.table-premium td {
    padding: 1rem;
    border-bottom: 1px solid var(--surface-border);
    vertical-align: middle;
}

/* Responsive Rules */
@media (max-width: 991px) {
    .sidebar {
        left: calc(-1 * var(--sidebar-width));
    }
    .sidebar.show {
        left: 0;
    }
    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }
}

/* Dark Mode Toggle Switch */
.theme-switch {
    width: 45px;
    height: 24px;
    background-color: var(--text-muted);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.theme-switch::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #fff;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: left 0.3s ease;
}

[data-theme="dark"] .theme-switch {
    background-color: var(--color-primary);
}

[data-theme="dark"] .theme-switch::after {
    left: 23px;
}

/* Installation Card */
.install-card {
    max-width: 600px;
    margin: 4rem auto;
    padding: 2.5rem;
}

.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    position: relative;
}

.step-indicator::before {
    content: '';
    position: absolute;
    height: 2px;
    background: var(--surface-border);
    width: 100%;
    top: 15px;
    left: 0;
    z-index: 1;
}

.step-dot {
    width: 32px;
    height: 32px;
    background: var(--bg-primary);
    border: 2px solid var(--surface-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.step-dot.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 0 15px var(--color-primary-glow);
}

.step-dot.completed {
    background: var(--color-success);
    border-color: var(--color-success);
    color: #fff;
}