/* 登录页面样式 */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color), var(--dark-gray));
    padding: 20px;
    padding-top: 100px;
}

.login-box {
    background: var(--primary-color);
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 450px;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    max-height: 60px;
    margin-bottom: 20px;
}

.login-header h1 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 2rem;
}

.login-header p {
    color: var(--text-color);
    opacity: 0.7;
}

.login-tabs {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--light-gray);
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.6;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tab-btn.active {
    color: var(--secondary-color);
    opacity: 1;
    border-bottom-color: var(--secondary-color);
    font-weight: 600;
}

.login-form {
    display: none;
}

.login-form.active {
    display: block;
}

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

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

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

.form-group input.success {
    border-color: #28a745;
}

.form-group input.error {
    border-color: var(--accent-color);
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 30px;
}

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

.btn-primary:hover {
    background-color: #004494;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 86, 179, 0.3);
}

.error-message {
    margin-top: 15px;
    padding: 10px 12px;
    background-color: #fee;
    color: var(--accent-color);
    border-radius: 5px;
    display: none;
    border-left: 4px solid var(--accent-color);
    animation: fadeIn 0.3s ease;
}

.error-message.show {
    display: block;
}

.success-message {
    margin-top: 15px;
    padding: 10px 12px;
    background-color: #efe;
    color: #28a745;
    border-radius: 5px;
    display: none;
    border-left: 4px solid #28a745;
    animation: fadeIn 0.3s ease;
}

.success-message.show {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--light-gray);
}

.login-footer a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: #004494;
    text-decoration: underline;
}

.role-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.role-option {
    display: flex;
    gap: 12px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    background-color: var(--light-gray);
}

.role-option.selected {
    border-color: var(--secondary-color);
    background-color: rgba(0, 86, 179, 0.05);
    box-shadow: 0 0 0 2px rgba(0, 86, 179, 0.2);
}

.role-option input {
    margin-top: 4px;
}

.role-option:hover,
.role-option:focus-within {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.15);
    background-color: rgba(0, 86, 179, 0.03);
}

.role-option input:checked + div::before {
    content: '✓';
    position: absolute;
    right: 12px;
    top: 12px;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.role-option > div {
    position: relative;
    flex: 1;
}

.role-title {
    display: block;
    font-weight: 600;
    color: var(--text-color);
}

.role-desc {
    margin: 4px 0 0;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

.role-desc code {
    background: rgba(0, 0, 0, 0.05);
    padding: 0 4px;
    border-radius: 4px;
    font-size: 0.85em;
}

.role-hint {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.6;
}

.password-input-wrapper {
    position: relative;
}

.password-toggle-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.6;
    padding: 4px 8px;
    transition: opacity 0.3s ease, color 0.3s ease;
    z-index: 10;
}

.password-toggle-btn:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.password-toggle-btn i {
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding-top: 90px;
    }

    .login-box {
        max-width: 95%;
        padding: 30px 20px;
    }

    .login-header h1 {
        font-size: 1.75rem;
    }

    .form-group input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
        padding-top: 70px;
    }

    .login-box {
        max-width: 100%;
        padding: 25px 20px;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .login-header p {
        font-size: 0.9rem;
    }

    .tab-btn {
        font-size: 0.9rem;
        padding: 10px;
    }
}