/* ===================================
   登录页面统一样式
   通过 data-role 属性区分角色
   =================================== */

/* Toast提示样式 */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: 8px;
    color: white;
    font-size: 14px;
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

.toast-success {
    background: linear-gradient(135deg, #28a745, #20c997);
}

.toast-error {
    background: linear-gradient(135deg, #dc3545, #c82333);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 登录容器 - 基础布局 */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

/* 各角色差异化背景 */
.login-container[data-role="admin"] {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container[data-role="agent"] {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.login-container[data-role="distributor"] {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.login-container[data-role="supplier"] {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

/* 登录框 */
.login-box {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 3rem;
    width: 100%;
    max-width: 450px;
}

/* 登录头部 */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-title {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.login-subtitle {
    color: #666;
    font-size: 1.1rem;
}

/* 表单 */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.form-group label {
    font-weight: 500;
    color: #333;
}

.form-group input {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
}

/* 各角色焦点样式 */
.login-container[data-role="admin"] .form-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-container[data-role="agent"] .form-group input:focus {
    border-color: #a8edea;
    box-shadow: 0 0 0 3px rgba(168, 237, 234, 0.1);
}

.login-container[data-role="distributor"] .form-group input:focus {
    border-color: #f5576c;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.1);
}

.login-container[data-role="supplier"] .form-group input:focus {
    border-color: #fcb69f;
    box-shadow: 0 0 0 3px rgba(252, 182, 159, 0.1);
}

/* 错误状态 */
.form-group input.error {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.error-message {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 4px;
}

/* 密码输入框容器 */
.password-wrapper {
    position: relative;
}

.password-wrapper input {
    width: 100%;
    padding-right: 45px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: #666;
    padding: 4px;
}

.password-toggle:hover {
    color: #333;
}

/* 验证码容器 */
.captcha-container {
    display: flex;
    gap: 1rem;
}

.captcha-container input {
    flex: 1;
}

.captcha-image {
    width: 100px;
    height: 40px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.captcha-image:hover {
    transform: scale(1.02);
}

.captcha-image canvas {
    display: block;
}

/* 记住我 & 忘记密码 行 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #666;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* 登录按钮 */
.login-btn {
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 各角色按钮样式 */
.login-container[data-role="admin"] .login-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.login-container[data-role="agent"] .login-btn {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #333;
}

.login-container[data-role="distributor"] .login-btn {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.login-container[data-role="supplier"] .login-btn {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    color: #333;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
}

.login-container[data-role="admin"] .login-btn:hover:not(:disabled) {
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-container[data-role="agent"] .login-btn:hover:not(:disabled) {
    box-shadow: 0 10px 20px rgba(168, 237, 234, 0.3);
}

.login-container[data-role="distributor"] .login-btn:hover:not(:disabled) {
    box-shadow: 0 10px 20px rgba(245, 87, 108, 0.3);
}

.login-container[data-role="supplier"] .login-btn:hover:not(:disabled) {
    box-shadow: 0 10px 20px rgba(252, 182, 159, 0.3);
}

/* 按钮loading状态 */
.login-btn .btn-text {
    transition: opacity 0.2s ease;
}

.login-btn.loading .btn-text {
    opacity: 0;
}

.login-btn .btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
}

.login-btn.loading .btn-loader {
    display: block;
}

.login-btn .spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 返回链接 */
.back-link {
    text-align: center;
    margin-top: 1.5rem;
}

.back-link a {
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.login-container[data-role="admin"] .back-link a {
    color: rgba(255, 255, 255, 0.9);
}

.login-container[data-role="agent"] .back-link a {
    color: #a8edea;
}

.login-container[data-role="distributor"] .back-link a {
    color: #f5576c;
}

.login-container[data-role="supplier"] .back-link a {
    color: #fcb69f;
}

.back-link a:hover {
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 768px) {
    .login-box {
        padding: 2rem;
        margin: 1rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .captcha-image {
        width: 80px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 1.5rem;
        margin: 0.5rem;
    }

    .login-title {
        font-size: 1.25rem;
    }

    .login-btn {
        padding: 1.25rem;
        min-height: 48px;
    }

    .captcha-container {
        flex-direction: column;
    }

    .captcha-image {
        width: 100%;
        height: 44px;
        margin-top: 0.5rem;
    }

    .form-options {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 375px) {
    .login-title {
        font-size: 1.1rem;
    }

    .form-group input {
        padding: 0.75rem;
        font-size: 14px;
    }

    .login-btn {
        padding: 1rem;
        font-size: 1rem;
    }

    .login-subtitle {
        font-size: 0.9rem;
    }
}

/* 无障碍支持 - 屏幕阅读器专用 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 无障碍支持 - 焦点可见性增强 */
*:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

.captcha-image:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* 无障碍支持 - 颜色对比度修复 */
.login-subtitle {
    color: #555;
}
.forgot-password {
    color: #5a6fd8;
}
.remember-me {
    color: #555;
}
.back-link a {
    color: rgba(255, 255, 255, 0.85);
}
.login-container[data-role="agent"] .back-link a {
    color: #7eb8b6;
}
.login-container[data-role="distributor"] .back-link a {
    color: #d64554;
}
.login-container[data-role="supplier"] .back-link a {
    color: #e09570;
}