:root {
    --ios-bg-primary: #f2f2f7;
    --ios-bg-secondary: #ffffff;
    --ios-text-primary: #1c1c1e;
    --ios-text-secondary: #8e8e93;
    --ios-blue: #007aff;
    --ios-green: #34c759;
    --ios-red: #ff3b30;
    --ios-yellow: #ffcc00;
    --ios-indigo: #5856d6;
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --radius-l: 28px;
    --radius-m: 18px;
    --radius-s: 12px;
    --font-primary: 'Cairo', sans-serif;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    background: radial-gradient(circle at 10% 20%, rgb(239, 246, 255) 0%, rgb(219, 228, 255) 90%);
    min-height: 100vh;
    color: var(--ios-text-primary);
    margin: 0;
    overflow-x: hidden;
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.1) 0%, rgba(52, 199, 89, 0.05) 40%, rgba(255, 59, 48, 0.05) 80%);
    animation: drift 20s infinite linear;
    z-index: -1;
    pointer-events: none;
}

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

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

/* Glassmorphism Utilities */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-l);
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
}

.glass-panel {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 20px;
    right: 20px;
    /* RTL */
    bottom: 20px;
    width: 280px;
    border-radius: var(--radius-l);
    padding: 20px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.sidebar .nav-link {
    color: var(--ios-text-secondary);
    border-radius: var(--radius-m);
    margin-bottom: 8px;
    padding: 12px 20px;
    font-weight: 600;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: var(--ios-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
}

.main-content {
    margin-right: 320px;
    /* Sidebar width + gap */
    padding: 40px;
    min-height: 100vh;
}

/* Buttons */
.btn {
    border-radius: 50px;
    padding: 10px 24px;
    font-weight: 600;
    border: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--ios-blue), var(--ios-indigo));
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--ios-green), #28a745);
    box-shadow: 0 4px 15px rgba(52, 199, 89, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, var(--ios-red), #d70015);
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.3);
}

/* Tables */
.table {
    border-collapse: separate;
    border-spacing: 0 10px;
    background: transparent;
}

.table thead th {
    border: none;
    color: var(--ios-text-secondary);
    font-weight: 700;
    padding: 15px;
    text-transform: uppercase;
    font-size: 0.85rem;
    background: transparent;
}

.table tbody tr {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-m);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    transition: transform 0.2s;
}

.table tbody tr:hover {
    transform: scale(1.01);
    background: rgba(255, 255, 255, 0.9);
}

.table td {
    border: none;
    padding: 20px 15px;
    vertical-align: middle;
}

.table td:first-child {
    border-top-right-radius: var(--radius-m);
    border-bottom-right-radius: var(--radius-m);
}

.table td:last-child {
    border-top-left-radius: var(--radius-m);
    border-bottom-left-radius: var(--radius-m);
}

/* Inputs */
.form-control {
    border-radius: var(--radius-m);
    border: 1px solid transparent;
    background: rgba(242, 242, 247, 0.8);
    padding: 12px 16px;
    transition: all 0.3s;
}

.form-control:focus {
    background: white;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.15);
    border-color: var(--ios-blue);
}

/* Stats Card Numbers */
.display-4 {
    font-weight: 800;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

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

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

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

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