/* ============================================================
 * login.css — 登录页样式
 * ============================================================ */

/* 遮罩层（全屏覆盖主界面） */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 登录卡片 */
.login-box {
    width: 400px;
    max-width: 90vw;
    background: #fff;
    border-radius: 12px;
    padding: 40px 32px 32px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    animation: loginFadeIn 0.3s ease-out;
}

@keyframes loginFadeIn {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 头部 */
.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo {
    font-size: 48px;
    margin-bottom: 8px;
}

.login-header h1 {
    font-size: 22px;
    font-weight: 600;
    color: #262626;
    margin: 0 0 6px;
}

.login-header p {
    font-size: 13px;
    color: #8c8c8c;
    margin: 0;
}

/* 表单字段 */
.login-field {
    margin-bottom: 18px;
}

.login-field label {
    display: block;
    font-size: 13px;
    color: #595959;
    margin-bottom: 6px;
    font-weight: 500;
}

.login-field input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.login-field input:focus {
    border-color: #1890ff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.15);
}

/* 验证码行：输入框 + 发送按钮 */
.login-code-row {
    display: flex;
    gap: 8px;
}

.login-code-row input {
    flex: 1;
    min-width: 0;
}

.login-code-btn {
    flex: 0 0 auto;
    height: 40px;
    padding: 0 12px;
    font-size: 13px;
    white-space: nowrap;
}

.login-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 错误提示 */
.login-err {
    font-size: 12px;
    color: #ff4d4f;
    margin-top: 4px;
    min-height: 16px;
}

/* 提交按钮 */
.login-submit-btn {
    width: 100%;
    height: 42px;
    font-size: 16px;
    font-weight: 500;
    margin-top: 4px;
}

.login-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 底部提示 */
.login-hint {
    text-align: center;
    font-size: 12px;
    color: #8c8c8c;
    margin-top: 16px;
    min-height: 16px;
}

/* 顶部退出按钮 */
.header-logout-btn {
    padding: 2px 10px;
    font-size: 12px;
    height: 28px;
    margin-left: 8px;
}