/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --grey-color: #e2e8f0;
    --danger-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f0f4f8;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
header {
    padding: 20px 0;
}

.logo h1 {
    font-size: 2.5rem;
    color: var(--dark-color);
}

.logo span {
    color: var(--primary-color);
}

.logo p {
    font-size: 0.9rem;
    color: #64748b;
}

/* Main content */
main {
    flex: 1;
    padding: 20px 0;
}

.auth-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.auth-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

.auth-card h2 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.subtitle {
    color: #64748b;
    margin-bottom: 25px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input {
    padding: 12px 16px;
    border: 1px solid var(--grey-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.form-footer {
    text-align: center;
    margin-top: 10px;
    font-size: 0.9rem;
}

.form-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Role selection */
.role-selection {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

.role-selection h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    text-align: center;
}

.roles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.role-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #f8fafc;
    border: 1px solid var(--grey-color);
    border-radius: 8px;
    padding: 20px 10px;
    text-decoration: none;
    color: var(--dark-color);
    transition: all 0.3s;
    text-align: center;
}

.role-btn i {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.role-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.role-btn:nth-child(1) {
    color: var(--info-color);
}

.role-btn:nth-child(2) {
    color: var(--warning-color);
}

.role-btn:nth-child(3) {
    color: var(--success-color);
}

.role-btn:nth-child(4) {
    color: var(--primary-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px 0;
    color: #64748b;
    font-size: 0.9rem;
}

/* Mobile navigation styles */
.mobile-nav-content {
    margin-top: 30px;
}

.mobile-nav-content h3 {
    font-size: 1.5rem;
    color: white;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 1rem;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.mobile-nav-links a:hover {
    color: white;
    padding-left: 5px;
}

/* Responsive styles */
@media (max-width: 768px) {
    .roles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .auth-card, .role-selection {
        padding: 20px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .roles-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .auth-card, .role-selection {
        padding: 15px;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 16px;
    }
    
    .form-group input {
        padding: 10px 14px;
    }
}