/* css/login.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px 30px;
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.logo i {
    font-size: 36px;
    background: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 50%;
}

.logo h1 {
    font-size: 32px;
    font-weight: 700;
}

.logo span {
    color: #ffd166;
}

.login-header h2 {
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-header p {
    opacity: 0.9;
    font-size: 14px;
}

.login-form {
    padding: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control.error {
    border-color: #ff4757;
}

.error-message {
    color: #ff4757;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-size: 16px;
    padding: 5px;
}

.password-toggle:hover {
    color: #764ba2;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-group input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-group label {
    margin: 0;
    font-size: 14px;
    color: #555;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.social-login {
    text-align: center;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid #eee;
}

.social-login p {
    color: #666;
    margin-bottom: 15px;
    font-size: 14px;
}

.social-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.social-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    background: white;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.social-btn.google {
    border-color: #db4437;
    color: #db4437;
}

.social-btn.google:hover {
    background: #db4437;
    color: white;
}

.social-btn.facebook {
    border-color: #4267B2;
    color: #4267B2;
}

.social-btn.facebook:hover {
    background: #4267B2;
    color: white;
}

.login-footer {
    text-align: center;
    padding: 25px 40px;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #666;
}

.login-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

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

.admin-link {
    margin: 10px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.admin-link i {
    color: #667eea;
}

.security-info {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #28a745;
}

.security-info i {
    font-size: 16px;
}

.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin: 0 40px 20px;
    font-size: 14px;
    display: none;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 576px) {
    .login-container {
        border-radius: 15px;
    }
    
    .login-form {
        padding: 30px 20px;
    }
    
    .login-header {
        padding: 30px 20px 25px;
    }
    
    .social-buttons {
        flex-direction: column;
    }
    
    .alert {
        margin: 0 20px 15px;
    }
}