:root {
    --shubao-auth-ink: #171717;
    --shubao-auth-muted: #77736f;
    --shubao-auth-paper: #f7f3ed;
    --shubao-auth-card: rgba(255, 255, 255, 0.9);
    --shubao-auth-accent: #22201e;
}

html.shubao-auth-locked,
html.shubao-auth-locked body {
    overflow: hidden !important;
    background: var(--shubao-auth-paper) !important;
}

html.shubao-auth-locked body > :not(#shubao-auth-gate):not(script):not(style) {
    visibility: hidden !important;
    pointer-events: none !important;
}

#shubao-auth-gate {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: max(24px, env(safe-area-inset-top)) 22px max(24px, env(safe-area-inset-bottom));
    color: var(--shubao-auth-ink);
    background:
        radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.96), transparent 34%),
        radial-gradient(circle at 86% 88%, rgba(222, 209, 190, 0.5), transparent 38%),
        var(--shubao-auth-paper);
    font-family: "LXGW WenKai Lite", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#shubao-auth-gate[hidden] {
    display: none !important;
}

.shubao-auth-card {
    width: min(100%, 390px);
    max-height: 92vh;
    overflow: auto;
    box-sizing: border-box;
    padding: 30px 26px 24px;
    border: 1px solid rgba(37, 32, 28, 0.08);
    border-radius: 30px;
    background: var(--shubao-auth-card);
    box-shadow: 0 28px 80px rgba(74, 62, 50, 0.13);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.shubao-auth-brand {
    display: flex;
    align-items: center;
    gap: 13px;
    margin-bottom: 28px;
}

.shubao-auth-logo {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 10px 26px rgba(45, 37, 31, 0.12);
}

.shubao-auth-brand-name {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.shubao-auth-brand-subtitle {
    margin-top: 3px;
    color: var(--shubao-auth-muted);
    font-size: 12px;
    letter-spacing: 0.04em;
}

.shubao-auth-title {
    margin: 0 0 10px;
    font-size: 27px;
    line-height: 1.25;
    letter-spacing: -0.03em;
}

.shubao-auth-copy {
    margin: 0 0 24px;
    color: var(--shubao-auth-muted);
    font-size: 14px;
    line-height: 1.75;
}

.shubao-auth-code-box {
    margin: 18px 0;
    padding: 18px;
    border-radius: 20px;
    background: #24211f;
    color: #fff;
    text-align: center;
}

.shubao-auth-code-label {
    color: rgba(255, 255, 255, 0.62);
    font-size: 11px;
    letter-spacing: 0.12em;
}

.shubao-auth-code {
    margin: 8px 0 5px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 30px;
    font-weight: 750;
    letter-spacing: 0.12em;
}

.shubao-auth-code-expiry {
    color: rgba(255, 255, 255, 0.68);
    font-size: 12px;
}

.shubao-auth-command {
    margin: 14px 0 22px;
    padding: 13px 14px;
    border: 1px dashed rgba(37, 32, 28, 0.2);
    border-radius: 15px;
    background: rgba(246, 241, 234, 0.7);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
    line-height: 1.55;
    word-break: break-all;
}

.shubao-auth-actions {
    display: grid;
    gap: 10px;
}

.shubao-auth-button {
    width: 100%;
    min-height: 48px;
    border: 0;
    border-radius: 16px;
    padding: 12px 16px;
    background: var(--shubao-auth-accent);
    color: #fff;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

.shubao-auth-button:disabled {
    cursor: wait;
    opacity: 0.55;
}

.shubao-auth-button.secondary {
    background: rgba(35, 32, 30, 0.07);
    color: var(--shubao-auth-ink);
}

.shubao-auth-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    color: var(--shubao-auth-muted);
    font-size: 12px;
    line-height: 1.55;
}

.shubao-auth-spinner {
    width: 15px;
    height: 15px;
    flex: 0 0 auto;
    border: 2px solid rgba(30, 27, 25, 0.13);
    border-top-color: #292521;
    border-radius: 50%;
    animation: shubao-auth-spin 0.8s linear infinite;
}

.shubao-auth-error {
    margin: 16px 0 20px;
    padding: 13px 14px;
    border-radius: 14px;
    background: #fff0ee;
    color: #9b352b;
    font-size: 13px;
    line-height: 1.55;
}

.shubao-auth-footnote {
    margin: 18px 0 0;
    color: #9a958f;
    font-size: 11px;
    line-height: 1.6;
    text-align: center;
}

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

@media (max-width: 480px) {
    #shubao-auth-gate {
        align-items: stretch;
        padding: 0;
    }

    .shubao-auth-card {
        width: 100%;
        max-height: none;
        min-height: 100%;
        padding: max(42px, env(safe-area-inset-top)) 25px max(28px, env(safe-area-inset-bottom));
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }
}