/* Modern Premium Dark Mode CSS */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-color: #0f172a;
    --text-muted: #64748b;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #059669;
    --danger: #dc2626;
    --border-color: rgba(15, 23, 42, 0.1);
    --glass-blur: blur(16px);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 15% 50%, rgba(37, 99, 235, 0.08), transparent 30%),
                      radial-gradient(circle at 85% 30%, rgba(5, 150, 105, 0.08), transparent 30%);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Classes */
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 8px -2px rgba(0, 0, 0, 0.02);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    line-height: 1.6;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-color);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

/* Auth Container */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

.auth-title {
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(to right, #1d4ed8, #6d28d9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-danger {
    background-color: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: #b91c1c;
}

/* Navbar */
.navbar {
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-color);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-color);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    padding: 1.5rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: row;
        padding: 1rem;
    }
    .menu-toggle {
        display: block;
    }
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.8rem;
        margin-top: 1rem;
    }
    .nav-links.active {
        display: flex;
    }
    .container {
        padding: 1rem;
    }
}

/* Footer */
.site-footer {
    margin-top: auto;
    padding: 1rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-muted);
}

.site-footer p {
    font-size: 0.8rem;
    margin-bottom: 0;
    letter-spacing: 0.5px;
    font-weight: 400;
}

.site-footer p:last-child {
    font-size: 0.7rem;
    color: rgba(15, 23, 42, 0.5) !important;
    margin-top: 0.2rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}