/*
 * 后台管理员登录页主题（云创考试）
 * 仅作用于 body.tenant-login，独立于公共 tenant-theme / backend 样式。
 * 视觉基线：zftest 租户后台 standalone/login.css（深绿品牌区 + 白色表单）。
 */

body.tenant-login {
    --brand: #168268;
    --brand-dark: #123b33;
    --brand-hover: #126f59;
    --text: #243b36;
    --muted: #74857e;
    --line: #e4ebe7;
    --canvas: #f4f7f5;
    margin: 0;
    padding: 0;
    background: #fff;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5715;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color-scheme: light;
}

body.tenant-login *,
body.tenant-login *::before,
body.tenant-login *::after {
    box-sizing: border-box;
}

body.tenant-login svg {
    display: block;
}

body.tenant-login button,
body.tenant-login input {
    font: inherit;
}

body.tenant-login button {
    cursor: pointer;
}

body.tenant-login button:focus-visible {
    outline: 3px solid #71bda6;
    outline-offset: 4px;
}

/* ---------------------------------------------------------------- 布局 */
body.tenant-login .login-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    min-height: 100vh;
    min-height: 100svh;
    background: #fff;
}

body.tenant-login .brand-panel {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 100vh;
    min-height: 100svh;
    padding: 44px clamp(40px, 5vw, 84px) 32px;
    overflow: hidden;
    background: var(--brand-dark);
    color: #f4f6ef;
}

body.tenant-login .brand-photo {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: .34;
    pointer-events: none;
}

body.tenant-login .brand-photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(.72);
}

body.tenant-login .brand-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(18, 59, 51, .62) 0%, rgba(18, 59, 51, .86) 65%, rgba(18, 59, 51, .94) 100%);
}

body.tenant-login .brand-lockup {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 13px;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: .03em;
}

body.tenant-login .brand-icon {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    flex: none;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 10px;
    background: var(--brand);
    color: #fff;
}

body.tenant-login .brand-icon svg {
    width: 27px;
    height: 27px;
}

body.tenant-login .brand-name {
    color: #f6f8f2;
}

body.tenant-login .brand-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 600px;
    margin: auto;
    padding-top: 55px;
}

body.tenant-login .brand-kicker {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0 0 21px;
    color: #bfd3c5;
    font-size: 13px;
    letter-spacing: .11em;
}

body.tenant-login .brand-kicker span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #b7cba3;
}

body.tenant-login .brand-content h1 {
    margin: 0;
    color: #f4f6ef;
    font-size: clamp(33px, 3.1vw, 49px);
    line-height: 1.36;
    letter-spacing: .04em;
    font-weight: 600;
}

body.tenant-login .brand-description {
    margin: 22px 0 0;
    color: #b5cbbd;
    font-size: 15px;
    line-height: 1.9;
    letter-spacing: .02em;
}

/* Flat geometric illustration: three answers followed by a completion accent. */
body.tenant-login .exam-scene {
    width: calc(100% + 76px);
    max-height: 410px;
    margin: 12px -38px -3px;
    pointer-events: none;
}
body.tenant-login .exam-scene svg { width: 100%; height: auto; max-height: 410px; }
body.tenant-login .flat-sheet { animation: tenant-flat-float 10s ease-in-out infinite; }
body.tenant-login .flat-back { animation: tenant-flat-float 10s ease-in-out -1s infinite reverse; }
body.tenant-login .flat-answer {
    opacity: 1;
    animation: tenant-flat-answer-one 10s ease-in-out infinite;
}
body.tenant-login .flat-answer-two { animation-name: tenant-flat-answer-two; }
body.tenant-login .flat-answer-three { animation-name: tenant-flat-answer-three; }
body.tenant-login .flat-badge {
    transform-box: fill-box;
    transform-origin: center;
    animation: tenant-flat-complete 10s ease-in-out infinite;
}
body.tenant-login .flat-accent {
    transform-box: fill-box;
    transform-origin: center;
    animation: tenant-flat-accent 10s ease-in-out infinite;
}

@keyframes tenant-flat-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
@keyframes tenant-flat-answer-one {
    0%, 16% { opacity: 0; }
    23%, 87% { opacity: 1; }
    96%, 100% { opacity: 0; }
}
@keyframes tenant-flat-answer-two {
    0%, 31% { opacity: 0; }
    38%, 87% { opacity: 1; }
    96%, 100% { opacity: 0; }
}
@keyframes tenant-flat-answer-three {
    0%, 46% { opacity: 0; }
    53%, 87% { opacity: 1; }
    96%, 100% { opacity: 0; }
}
@keyframes tenant-flat-complete {
    0%, 55%, 76%, 100% { transform: translateY(0) scale(1); }
    63% { transform: translateY(-6px) scale(1.06); }
    69% { transform: translateY(1px) scale(.99); }
}
@keyframes tenant-flat-accent {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-9px) rotate(12deg); }
}

body.tenant-login .brand-footer {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 22px;
    color: #a8c1b2;
    font-size: 12px;
    letter-spacing: .05em;
}

body.tenant-login .brand-footer i {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #6f9583;
}

/* ---------------------------------------------------------------- 表单区 */
body.tenant-login .form-panel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    padding: 80px 44px 95px;
    background: #fff;
}

body.tenant-login .login-form-wrap {
    width: 100%;
    max-width: 380px;
    animation: tenant-login-form-enter .45s ease-out both;
}

body.tenant-login .form-heading {
    margin-bottom: 34px;
}

body.tenant-login .welcome-label {
    display: block;
    margin-bottom: 13px;
    color: var(--brand);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .08em;
}

body.tenant-login .form-heading h2 {
    margin: 0 0 13px;
    color: var(--text);
    font-size: 28px;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: .01em;
}

body.tenant-login .form-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

body.tenant-login .form-field {
    margin-bottom: 23px;
}

body.tenant-login .form-field > label {
    display: block;
    margin-bottom: 10px;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
}

body.tenant-login .input-wrap {
    position: relative;
}

body.tenant-login .input-icon {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 19px;
    height: 19px;
    color: #81958a;
    pointer-events: none;
}

body.tenant-login .input-wrap input.form-control {
    display: block;
    width: 100%;
    height: 52px;
    margin: 0;
    padding: 0 16px 0 45px;
    border: 1px solid #dbe4de;
    border-radius: 8px;
    background: #fff;
    box-shadow: none;
    color: var(--text);
    font-size: 14px;
    line-height: 50px;
    outline: none;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

body.tenant-login .input-wrap input.form-control::placeholder {
    color: #a0ada5;
    opacity: 1;
}

body.tenant-login .input-wrap input.form-control:hover {
    border-color: #afc5b8;
}

body.tenant-login .input-wrap input.form-control:focus {
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(22, 130, 104, .08);
}

body.tenant-login .form-field.has-error .input-wrap input.form-control {
    border-color: #cf7d66;
    box-shadow: 0 0 0 3px rgba(207, 125, 102, .08);
}

/* 密码显隐 */
body.tenant-login .password-wrap input.form-control {
    padding-right: 54px;
}

body.tenant-login .password-toggle {
    position: absolute;
    top: 6px;
    right: 6px;
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: #87988e;
    transition: background .16s ease, color .16s ease;
}

body.tenant-login .password-toggle:hover {
    background: #f1f6f2;
    color: var(--brand);
}

body.tenant-login .password-toggle svg {
    width: 20px;
    height: 20px;
}

body.tenant-login .eye-slash {
    display: none;
}

body.tenant-login .password-toggle[aria-pressed="true"] .eye-slash {
    display: block;
}

/* 验证码：input 的下一个兄弟必须是 .input-group-addon，保持后台错误回调可刷新验证码 */
body.tenant-login .captcha-wrap input.form-control {
    padding-right: 122px;
}

body.tenant-login .captcha-addon {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 108px;
    height: 40px;
    padding: 0;
    border: 0;
    border-left: 1px solid #e6ede8;
    background: #fff;
    cursor: pointer;
    line-height: 0;
    overflow: hidden;
    border-radius: 0 6px 6px 0;
}

body.tenant-login .captcha-addon img {
    display: block;
    width: 100px;
    height: 30px;
    max-width: none;
    border: 0;
}

/* 保持会话 */
body.tenant-login .remember-row {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 2px 0 0;
}

body.tenant-login .remember-row input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    flex: none;
    width: 17px;
    height: 17px;
    margin: 0;
    border: 1.5px solid #b9c8bf;
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    transition: background .14s ease, border-color .14s ease;
}

body.tenant-login .remember-row input[type="checkbox"]:checked {
    border-color: var(--brand);
    background: var(--brand);
}

body.tenant-login .remember-row input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    top: 1px;
    left: 4.5px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

body.tenant-login .remember-row input[type="checkbox"]:focus-visible {
    outline: 3px solid #71bda6;
    outline-offset: 2px;
}

body.tenant-login .remember-row label {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
    cursor: pointer;
}

/* 主按钮 */
body.tenant-login .login-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    height: 52px;
    margin-top: 28px;
    padding: 0 18px;
    border: 1px solid var(--brand);
    border-radius: 8px;
    background: var(--brand);
    box-shadow: 0 3px 8px rgba(22, 130, 104, .08);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .04em;
    line-height: 1;
    text-align: center;
    text-shadow: none;
    transition: background .16s ease, border-color .16s ease, transform .12s ease, box-shadow .16s ease;
}

body.tenant-login .login-submit:hover,
body.tenant-login .login-submit:focus {
    border-color: var(--brand-hover);
    background: var(--brand-hover);
    box-shadow: 0 5px 12px rgba(22, 130, 104, .16);
    color: #fff;
    text-decoration: none;
}

body.tenant-login .login-submit:active {
    transform: translateY(1px);
    box-shadow: none;
}

body.tenant-login .button-arrow {
    width: 19px;
    height: 19px;
    flex: none;
}

/* Field validation stays beside the input; server errors have one form-level alert. */
body.tenant-login #errtips {
    display: none;
    margin: 0 0 22px;
    padding: 12px 14px;
    border: 1px solid #f0d3cd;
    border-radius: 8px;
    background: #fff5f2;
    color: #a23f32;
    font-size: 13px;
    line-height: 1.7;
    overflow-wrap: anywhere;
}
body.tenant-login #errtips.is-visible { display: block; }
body.tenant-login .login-field-error {
    display: block;
    position: static;
    margin: 6px 0 0;
    color: #b04738;
    font-size: 12px;
    line-height: 1.6;
}
body.tenant-login .login-field-error:empty { display: none; }
body.tenant-login .login-field-error .msg-wrap,
body.tenant-login .login-field-error .n-error {
    display: block;
    position: static;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
    white-space: normal;
    font-size: inherit;
    color: inherit;
}
body.tenant-login .login-field-error .n-icon,
body.tenant-login .login-field-error .n-arrow { display: none; }
body.tenant-login .login-submit:disabled { opacity: .72; cursor: wait; transform: none; }
body.tenant-login .brand-icon { overflow: hidden; }
body.tenant-login .brand-icon img { display: block; width: 100%; height: 100%; object-fit: contain; }
body.tenant-login .brand-name,
body.tenant-login .brand-content h1,
body.tenant-login .brand-description,
body.tenant-login .form-heading h2,
body.tenant-login .form-heading p,
body.tenant-login .form-footer { overflow-wrap: anywhere; }

/* 底部联系提示与 copyright */
body.tenant-login .login-assistance {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 16px;
    padding-top: 23px;
    border-top: 1px solid var(--line);
    color: #8b9a91;
}

body.tenant-login .login-assistance svg {
    width: 16px;
    height: 16px;
    flex: none;
}

body.tenant-login .login-assistance p {
    margin: 0;
    color: #8b9a91;
    font-size: 12px;
    line-height: 1.6;
}

body.tenant-login .form-footer {
    position: absolute;
    right: 24px;
    bottom: 31px;
    left: 24px;
    margin: 0;
    color: #a0aca4;
    font-size: 12px;
    line-height: 1.5;
    text-align: center;
}

/* ---------------------------------------------------------------- 动效 */
@keyframes tenant-login-form-enter {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes tenant-login-error-enter {
    from {
        opacity: 0;
        transform: translateY(-3px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body.tenant-login #errtips.is-visible {
    animation: tenant-login-error-enter .2s ease-out;
}

/* ---------------------------------------------------------------- 响应式 */
@media (min-width: 1800px) {
    body.tenant-login .brand-panel {
        padding-top: 54px;
        padding-bottom: 42px;
    }

    body.tenant-login .brand-content {
        padding-top: 70px;
    }

    body.tenant-login .exam-scene {
        margin-top: 35px;
        max-height: 450px;
    }

    body.tenant-login .exam-scene svg {
        max-height: 450px;
    }

    body.tenant-login .login-form-wrap {
        max-width: 400px;
    }
}

@media (max-width: 1050px) {
    body.tenant-login .brand-panel {
        padding: 34px 35px 27px;
    }

    body.tenant-login .brand-content h1 {
        font-size: 34px;
    }

    body.tenant-login .brand-description {
        font-size: 14px;
    }

    body.tenant-login .form-panel {
        padding-right: 32px;
        padding-left: 32px;
    }

    body.tenant-login .brand-footer {
        gap: 13px;
    }

    body.tenant-login .exam-scene {
        width: calc(100% + 48px);
        margin-right: -24px;
        margin-left: -24px;
    }
}

@media (max-width: 760px) {
    body.tenant-login {
        background: var(--canvas);
    }

    body.tenant-login .login-layout {
        display: block;
        min-height: 100svh;
        background: var(--canvas);
    }

    body.tenant-login .brand-panel {
        height: auto;
        min-height: 0;
        padding: 23px 25px;
        background: var(--brand-dark);
    }

    body.tenant-login .brand-lockup {
        gap: 11px;
        font-size: 17px;
    }

    body.tenant-login .brand-icon {
        width: 34px;
        height: 34px;
        border-radius: 8px;
    }

    body.tenant-login .brand-icon svg {
        width: 24px;
        height: 24px;
    }

    body.tenant-login .brand-content,
    body.tenant-login .brand-footer {
        display: none;
    }

    body.tenant-login .form-panel {
        display: block;
        min-height: calc(100svh - 80px);
        padding: 54px 28px 96px;
        background: #fff;
    }

    body.tenant-login .login-form-wrap {
        max-width: 400px;
        margin: 0 auto;
    }

    body.tenant-login .form-heading {
        margin-bottom: 31px;
    }

    body.tenant-login .form-heading h2 {
        font-size: 26px;
    }

    body.tenant-login .form-footer {
        bottom: 27px;
    }

    body.tenant-login .input-wrap input.form-control {
        font-size: 16px;
    }

    body.tenant-login .login-assistance {
        margin-top: 14px;
    }
}

@media (max-width: 380px) {
    body.tenant-login .form-panel {
        padding: 46px 20px 92px;
    }

    body.tenant-login .captcha-wrap input.form-control {
        padding-right: 114px;
    }

    body.tenant-login .captcha-addon {
        width: 100px;
    }

    body.tenant-login .captcha-addon img {
        width: 92px;
        height: 28px;
    }
}

@media (max-height: 880px) and (min-width: 761px) {
    body.tenant-login .brand-panel {
        padding-top: 36px;
        padding-bottom: 26px;
    }

    body.tenant-login .brand-content {
        padding-top: 30px;
    }

    body.tenant-login .exam-scene,
    body.tenant-login .exam-scene svg {
        max-height: 330px;
    }

    body.tenant-login .brand-footer {
        margin-top: 14px;
    }
}

@media (max-height: 830px) and (min-width: 761px) {
    body.tenant-login .form-panel {
        padding-top: 44px;
        padding-bottom: 56px;
    }

    body.tenant-login .form-footer {
        bottom: 18px;
    }
}

@media (max-height: 720px) and (min-width: 761px) {
    body.tenant-login .brand-panel {
        padding-top: 26px;
        padding-bottom: 23px;
    }

    body.tenant-login .brand-content {
        padding-top: 24px;
    }

    body.tenant-login .brand-content h1 {
        font-size: 34px;
    }

    body.tenant-login .brand-kicker {
        margin-bottom: 12px;
    }

    body.tenant-login .brand-description {
        margin-top: 13px;
    }

    body.tenant-login .exam-scene,
    body.tenant-login .exam-scene svg {
        max-height: 270px;
    }

    body.tenant-login .brand-footer {
        margin-top: 10px;
    }

    body.tenant-login .form-panel {
        padding-top: 34px;
        padding-bottom: 44px;
    }

    body.tenant-login .form-footer {
        bottom: 14px;
    }
}

@media (max-height: 700px) and (min-width: 761px) {
    body.tenant-login .form-panel {
        padding: 28px 44px 40px;
    }

    body.tenant-login .form-heading {
        margin-bottom: 20px;
    }

    body.tenant-login .form-field {
        margin-bottom: 16px;
    }

    body.tenant-login .login-submit {
        margin-top: 20px;
    }

    body.tenant-login .login-assistance {
        margin-top: 10px;
    }

    body.tenant-login .form-footer {
        bottom: 16px;
    }
}

@media (max-height: 620px) and (min-width: 761px) {
    body.tenant-login .exam-scene {
        display: none;
    }

    body.tenant-login .form-panel {
        padding: 16px 44px 22px;
    }

    body.tenant-login .form-heading {
        margin-bottom: 16px;
    }

    body.tenant-login .form-field {
        margin-bottom: 12px;
    }

    body.tenant-login .login-submit {
        margin-top: 16px;
    }

    body.tenant-login .login-assistance {
        margin-top: 8px;
        padding-top: 16px;
    }

    body.tenant-login .form-footer {
        bottom: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    body.tenant-login *,
    body.tenant-login *::before,
    body.tenant-login *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}