:root {
    /* Color Palette - Modern Indigo */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Backgrounds */
    --bg-body: #f3f4f6;
    --surface: #ffffff;
    --surface-glass: rgba(255, 255, 255, 0.9);

    /* Text */
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --text-light: #f9fafb;

    /* Spacing & Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Sidebar */
    --sidebar-width: 260px;
}

body {
    background-color: var(--bg-body);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 20%);
    background-attachment: fixed;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-main);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
}

/* Glassmorphism Card */
.glass-card {
    background: var(--surface-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.glass-card.no-hover:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}

/* Modern Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

.btn-light {
    background-color: #fff;
    border-color: #e5e7eb;
    color: var(--text-main);
}

.btn-light:hover {
    background-color: #f9fafb;
    border-color: #d1d5db;
}

/* Forms */
.form-control {
    border-radius: var(--radius-md);
    border: 1px solid #d1d5db;
    padding: 0.75rem 1rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

/* Navbar & Layout */
.navbar {
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.layout-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid rgba(0, 0, 0, 0.05);
    position: fixed;
    height: 100vh;
    padding: 1.5rem;
    z-index: 50;
    box-shadow: var(--shadow-lg);
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2.5rem;
    max-width: 1600px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    margin-bottom: 0.25rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background-color: rgba(99, 102, 241, 0.05);
    color: var(--primary);
    transform: translateX(4px);
}

.nav-link.active {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.nav-link i {
    width: 24px;
    text-align: center;
    transition: transform 0.2s ease;
}

.nav-link:hover i {
    transform: scale(1.1);
}

/* Utilities */
.rounded-xl {
    border-radius: var(--radius-xl) !important;
}

.shadow-hover {
    transition: var(--transition-base);
}

.shadow-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg) !important;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes pulse-ring {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }

    70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }

    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

.pulse-ring {
    animation: pulse-ring 2s infinite;
}

/* Modern Tables */
.table-modern {
    border-collapse: separate;
    border-spacing: 0 0.5rem;
}

.table-modern th {
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 1rem 1.5rem;
}

.table-modern td {
    background: #fff;
    border: none;
    padding: 1rem 1.5rem;
    vertical-align: middle;
}

.table-modern tr td:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.table-modern tr td:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.table-modern tr {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.table-modern tbody tr:hover td {
    background-color: #fafafa;
    transform: scale(1.005);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    z-index: 10;
    position: relative;
}

/* Avatar Stack */
.avatar-group {
    display: flex;
    align-items: center;
}

.avatar-group img {
    border: 2px solid #fff;
    margin-left: -10px;
    transition: transform 0.2s;
}

.avatar-group img:first-child {
    margin-left: 0;
}

.avatar-group img:hover {
    transform: translateY(-4px);
    z-index: 2;
}