:root {
    --login-ink: #17355f;
    --login-deep: #274b87;
    --login-mid: #3976b7;
    --login-sky: #5d9fd2;
    --login-ice: #c8e3e8;
    --login-pale: #dcebed;
    --login-coral: #d9786d;
    --login-font: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    min-height: 100%;
    background: var(--login-ice);
}

body {
    min-height: 100%;
    margin: 0;
    color: var(--login-ink);
    background: var(--login-ice);
    font-family: var(--login-font);
    line-height: 1.5;
}

button,
input {
    font: inherit;
}

button {
    color: inherit;
}

.login-gateway {
    display: grid;
    min-height: 100vh;
    grid-template-columns: minmax(0, 60fr) minmax(430px, 40fr);
}

.brand-panel {
    position: relative;
    min-width: 0;
    overflow: hidden;
    background-color: var(--login-sky);
    background-image: url("../images/sandriver-comic-halftone-blue-v2.31f98c37a3f1.png");
    background-position: center;
    background-size: cover;
    border-right: 4px solid var(--login-ink);
}

.brand-panel__content {
    display: flex;
    width: min(100%, 920px);
    min-height: 100vh;
    flex-direction: column;
    justify-content: flex-start;
    padding: clamp(52px, 5.6vw, 80px) clamp(42px, 5.6vw, 80px) clamp(52px, 5.4vw, 78px);
}

.brand-lockup,
.brand-message,
.workflow {
    position: relative;
    z-index: 1;
}

.brand-wordmark {
    margin: 0;
    color: var(--login-ice);
    font-size: clamp(64px, 6vw, 88px);
    font-weight: 900;
    letter-spacing: -0.065em;
    line-height: 0.9;
    text-shadow: 6px 6px 0 var(--login-ink);
    -webkit-text-stroke: 2px var(--login-ink);
}

.brand-product {
    display: flex;
    align-items: center;
    gap: 13px;
    margin: 11px 0 0;
    color: var(--login-ink);
}

.brand-product strong {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.brand-product span {
    width: 18px;
    border-top: 1px solid rgba(23, 53, 95, 0.34);
}

.brand-product small {
    font-size: 9px;
    letter-spacing: 0.19em;
}

.brand-message {
    max-width: 610px;
    margin: 72px 0 0;
}

.comic-caption {
    position: relative;
    display: inline-block;
    padding: 28px 31px 26px;
    border: 4px solid var(--login-ink);
    background: var(--login-ice);
    box-shadow: 9px 9px 0 var(--login-ink);
    transform: rotate(-0.65deg);
}

.comic-caption::before {
    position: absolute;
    top: -7px;
    left: 22px;
    width: 38px;
    height: 7px;
    border: 2px solid var(--login-ink);
    background: var(--login-coral);
    content: "";
}

.comic-caption h1 {
    margin: 0;
    color: var(--login-ink);
    font-size: clamp(32px, 2.65vw, 42px);
    font-weight: 900;
    letter-spacing: -0.055em;
    line-height: 1.36;
}

.brand-message > p {
    margin: 24px 8px 0;
    color: var(--login-ink);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.workflow {
    display: grid;
    max-width: 630px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 62px;
    margin: auto 0 0;
    padding: 0;
    list-style: none;
}

.workflow li {
    position: relative;
    min-width: 105px;
    padding: 9px 11px 8px;
    border: 2px solid var(--login-ink);
    background: var(--login-ice);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.08em;
    line-height: 1;
    white-space: nowrap;
}

.workflow li:not(:last-child)::after {
    position: absolute;
    top: 50%;
    left: calc(100% + 13px);
    width: 36px;
    border-top: 2px solid rgba(23, 53, 95, 0.23);
    content: "";
}

.workflow li span {
    margin-right: 5px;
}

.workflow .workflow__active {
    color: var(--login-coral);
    border-color: var(--login-coral);
}

.auth-panel {
    display: flex;
    min-width: 0;
    align-items: center;
    justify-content: center;
    padding: clamp(42px, 5vw, 72px);
    background: var(--login-ice);
}

.login-card {
    width: min(100%, 420px);
    padding: 40px 40px 34px;
    border: 1px solid var(--login-ink);
    background: var(--login-pale);
    box-shadow: 12px 12px 0 var(--login-ink);
}

.login-card__header {
    margin-bottom: 34px;
}

.access-label {
    display: inline-block;
    margin: 0 0 19px;
    padding: 5px 13px;
    color: var(--login-ice);
    background: var(--login-ink);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.09em;
    line-height: 1.45;
}

.login-card h2 {
    margin: 0;
    color: var(--login-ink);
    font-size: clamp(26px, 2.2vw, 32px);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1.3;
}

.login-error {
    margin: -12px 0 24px;
    padding: 10px 12px;
    border-left: 4px solid var(--login-coral);
    color: var(--login-ink);
    background: rgba(217, 120, 109, 0.16);
    font-size: 13px;
    font-weight: 700;
}

.login-form {
    display: grid;
    gap: 23px;
}

.form-field {
    display: grid;
    gap: 7px;
}

.field-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.form-field label {
    color: var(--login-ink);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.form-field input {
    width: 100%;
    height: 53px;
    padding: 0 15px;
    border: 1px solid var(--login-ink);
    border-radius: 0;
    outline: 0;
    color: var(--login-ink);
    background: var(--login-pale);
    caret-color: var(--login-coral);
    font-size: 15px;
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

.form-field input:hover {
    border-color: var(--login-deep);
}

.form-field input:focus-visible {
    border-color: var(--login-ink);
    box-shadow: 4px 4px 0 var(--login-sky);
}

.password-toggle {
    margin: 0;
    padding: 2px 0;
    border: 0;
    outline: 0;
    color: var(--login-mid);
    background: transparent;
    cursor: pointer;
    font-size: 10px;
    font-weight: 800;
}

.password-toggle:hover,
.password-toggle:focus-visible {
    color: var(--login-coral);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.field-error {
    margin: 0;
    color: var(--login-coral);
    font-size: 12px;
    font-weight: 700;
}

.remember-control {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 9px;
    color: var(--login-mid);
    cursor: pointer;
    font-size: 14px;
    font-weight: 800;
}

.remember-control input {
    width: 17px;
    height: 17px;
    margin: 0;
    border-radius: 0;
    accent-color: var(--login-ink);
}

.remember-control input:focus-visible {
    outline: 3px solid var(--login-sky);
    outline-offset: 2px;
}

.login-button {
    display: inline-flex;
    width: 100%;
    min-height: 55px;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--login-ink);
    border-radius: 0;
    color: var(--login-pale);
    background: var(--login-ink);
    cursor: pointer;
    font-size: 16px;
    font-weight: 900;
    transition: background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.login-button:hover {
    color: var(--login-ink);
    background: var(--login-coral);
    box-shadow: 4px 4px 0 var(--login-ink);
    transform: translate(-2px, -2px);
}

.login-button:focus-visible {
    outline: 3px solid var(--login-coral);
    outline-offset: 3px;
}

.login-button:disabled {
    cursor: wait;
    opacity: 0.72;
    transform: none;
}

.login-card__footer {
    margin-top: 31px;
    padding-top: 29px;
    border-top: 1px solid rgba(39, 75, 135, 0.18);
}

.login-card__footer p {
    margin: 0;
    color: var(--login-mid);
    font-size: 12px;
    font-weight: 700;
}

@media (max-width: 1120px) {
    .login-gateway {
        grid-template-columns: minmax(0, 55fr) minmax(410px, 45fr);
    }

    .brand-panel__content {
        padding-inline: 50px;
    }

    .workflow {
        gap: 35px;
    }

    .workflow li:not(:last-child)::after {
        left: calc(100% + 8px);
        width: 20px;
    }

    .auth-panel {
        padding-inline: 44px;
    }
}

@media (max-width: 820px) {
    .login-gateway {
        display: block;
    }

    .brand-panel {
        border-right: 0;
        border-bottom: 4px solid var(--login-ink);
    }

    .brand-panel__content {
        width: 100%;
        min-height: auto;
        padding: 36px 28px 34px;
    }

    .brand-wordmark {
        font-size: clamp(50px, 14vw, 60px);
    }

    .brand-message {
        margin: 42px 0 0;
    }

    .comic-caption {
        padding: 20px 22px 19px;
    }

    .comic-caption h1 {
        font-size: clamp(28px, 7vw, 34px);
    }

    .brand-message > p {
        margin-top: 18px;
        margin-inline: 3px;
        font-size: 14px;
    }

    .workflow {
        display: none;
    }

    .auth-panel {
        min-height: auto;
        padding: 42px 24px 58px;
    }
}

@media (max-width: 480px) {
    .auth-panel {
        padding: 32px 24px 48px;
    }

    .brand-product {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
    }

    .brand-product span {
        display: none;
    }

    .brand-message {
        margin: 32px 0 0;
    }

    .brand-message > p {
        display: none;
    }

    .comic-caption {
        display: block;
    }

    .comic-caption h1 br {
        display: none;
    }

    .login-card {
        padding: 31px 24px 28px;
        box-shadow: 8px 8px 0 var(--login-ink);
    }

    .login-card__header {
        margin-bottom: 26px;
    }

    .login-card h2 {
        font-size: 26px;
    }

    .login-form {
        gap: 18px;
    }

    .login-card__footer {
        margin-top: 24px;
        padding-top: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}