:root {
    --primary-dark: #1a237e;
    --primary-main: #283593;
    --primary-light: #3949ab;
    --secondary-dark: #00838f;
    --secondary-main: #00acc1;
    --accent-color: #ffab00;
    --light-bg: #f5f7fa;
    --dark-text: #212121;
    --light-text: #f5f5f5;
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.1), 0 6px 6px rgba(0,0,0,0.08);
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-main));
    color: var(--dark-text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
    position: relative;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-main), var(--primary-dark));
    color: var(--light-text);
    padding: 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1), transparent 70%);
}

.login-header h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.login-header p {
    opacity: 0.9;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-text);
}

.form-control {
    width: 100%;
    padding: 12px 15px 12px 40px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-main);
    box-shadow: 0 0 0 3px rgba(40, 53, 147, 0.2);
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 40px;
    color: var(--primary-main);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
}

.remember-me input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-main);
}

.forgot-password {
    color: var(--primary-main);
    text-decoration: none;
    transition: var(--transition);
}

.forgot-password:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--dark-text);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: #ffb300;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.login-footer {
    text-align: center;
    padding: 20px;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
    color: #666;
}

.login-footer a {
    color: var(--primary-main);
    text-decoration: none;
    transition: var(--transition);
}

.login-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.alert {
    padding: 12px 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.alert-error {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border-left: 4px solid #dc3545;
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border-left: 4px solid #28a745;
}

/* Admin page styles */
.admin-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}

.admin-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--primary-dark);
}

.logout-btn {
    background-color: var(--accent-color);
    color: var(--dark-text);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.logout-btn:hover {
    background-color: #ffb300;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.admin-content {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.welcome-message {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--dark-text);
}

@media (max-width: 480px) {
    .login-header {
        padding: 20px;
    }

    .login-header h1 {
        font-size: 1.8rem;
    }

    .login-body {
        padding: 20px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}