:root {
    /* Dark Mode (Default) */
    --bg-color: #121212;
    --text-color: #ffffff;
    --primary-color: #bb86fc;
    --secondary-color: #03dac6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(10px);
    --sidebar-bg: rgba(0, 0, 0, 0.2);
    --input-bg: rgba(255, 255, 255, 0.1);
    --input-border: rgba(255, 255, 255, 0.2);
    --table-border: rgba(255, 255, 255, 0.1);
    --table-row-border: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
    --bg-color: #f4f7f6;
    --text-color: #333333;
    --primary-color: #6200ee;
    --secondary-color: #03dac6;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: 1px solid rgba(0, 0, 0, 0.05);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    --glass-blur: blur(10px);
    --sidebar-bg: rgba(255, 255, 255, 0.5);
    --input-bg: rgba(0, 0, 0, 0.05);
    --input-border: rgba(0, 0, 0, 0.1);
    --table-border: rgba(0, 0, 0, 0.1);
    --table-row-border: rgba(0, 0, 0, 0.05);
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.glass-container {
    background: var(--glass-bg);
    border: var(--glass-border);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
    padding: 20px;
}

.glass-card {
    background: var(--glass-bg);
    border: var(--glass-border);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-shadow);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 15px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

.glass-btn {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s ease;
}

.glass-btn:hover {
    filter: brightness(1.1);
}

.glass-input {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-color);
    padding: 10px;
    border-radius: 8px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 10px;
    transition: background 0.3s ease, border 0.3s ease, color 0.3s ease;
}

.glass-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    border-right: var(--glass-border);
    backdrop-filter: var(--glass-blur);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: background 0.3s ease;
}

.main-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.sidebar-link {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 15px;
    margin-bottom: 5px;
    border-radius: 8px;
    transition: background 0.2s ease, color 0.3s ease;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: rgba(125, 125, 125, 0.1);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Toggle Switch */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    margin-top: 20px;
}

.theme-switch {
    display: inline-block;
    height: 34px;
    position: relative;
    width: 60px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #ccc;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 26px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 26px;
}

input:checked+.slider {
    background-color: var(--primary-color);
}

input:checked+.slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}