:root {
    --primary-color: #00d2ff;
    --secondary-color: #3a7bd5;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-white: #f8fafc;
    --text-muted: #94a3b8;
    --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top right, #1e293b, #0f172a);
    overflow-x: hidden;
}

.glass-container {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
}

p.subtitle {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 0.9rem;
}

.input-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s;
}

.input-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 210, 255, 0.1);
}

button.btn-primary {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: var(--accent-gradient);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
}

button.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 210, 255, 0.4);
}

button.btn-primary:active {
    transform: translateY(0);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
    align-items: stretch;
}

.stats .glass-container {
    margin: 0;
    max-width: none;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.5rem;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    border-color: #ef4444;
}

.dashboard-layout aside h2 {
    margin-bottom: 2rem;
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dashboard-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
    width: 100%;
}

aside {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--glass-border);
    padding: 2rem;
}

main {
    padding: 2rem;
    overflow-y: auto;
}

.nav-item {
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--text-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.5rem;
    transition: all 0.3s;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
}

.nav-item.active {
    background: var(--accent-gradient);
}

.version-badge {
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.5;
    margin-top: auto;
    padding-top: 2rem;
    text-align: center;
}

@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }

    aside {
        display: none;
        /* Add a toggle in actual implementation */
    }
}