:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --dark-bg: #121212;
    --card-bg: #1e1e1e;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
}

body {
    background-color: #f8f9fa;
    font-family: 'Inter', sans-serif;
    color: #333;
}

/* Dark Mode support */
[data-bs-theme="dark"] body {
    background-color: var(--dark-bg);
    color: var(--text-main);
}
[data-bs-theme="dark"] .card {
    background-color: var(--card-bg);
    border-color: #333;
}
[data-bs-theme="dark"] .navbar {
    background-color: var(--card-bg) !important;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--success-color) 100%);
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    padding: 3rem;
    width: 100%;
    max-width: 450px;
}

[data-bs-theme="dark"] .login-card {
    background: rgba(30, 30, 30, 0.95);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.summary-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border-radius: 12px;
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
[data-bs-theme="dark"] .summary-card {
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

.summary-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}
[data-bs-theme="dark"] .summary-card:hover {
    box-shadow: 0 10px 15px rgba(0,0,0,0.4);
}

.card-icon {
    font-size: 2.5rem;
    opacity: 0.8;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

/* Navbar */
.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Page headers */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #dee2e6;
}
[data-bs-theme="dark"] .page-header {
    border-bottom-color: #444;
}