/* TestHub 注册/登录页专用样式 — 仅 body.auth-page-v2，与其它页面隔离 */

body.auth-page-v2 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: #0b1220 url("../images/auth/auth_page_bg.png") center center / cover no-repeat fixed;
    color: #0f172a;
}

body.auth-page-v2::before {
    content: "";
    position: fixed;
    inset: 0;
    background: linear-gradient(165deg, rgba(11, 18, 32, 0.42) 0%, rgba(15, 23, 42, 0.62) 55%, rgba(11, 18, 32, 0.5) 100%);
    pointer-events: none;
    z-index: 0;
}

body.auth-page-v2 .auth-page-wrap {
    position: relative;
    z-index: 1;
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: min(100% - 2rem, 24.5rem);
    margin: 0 auto;
    padding: clamp(1.25rem, 3.5vh, 2.25rem) 0 1rem;
    transition: width 0.22s ease;
}

body.auth-page-v2.auth-tab-register .auth-page-wrap {
    width: min(100% - 2rem, 28.5rem);
}

body.auth-page-v2 .auth-card {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 1.25rem;
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.04),
        0 20px 50px rgba(15, 23, 42, 0.12);
    padding: clamp(1.1rem, 2.4vw, 1.35rem);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body.auth-page-v2 .auth-card__head {
    margin-bottom: 0.85rem;
}

body.auth-page-v2 .auth-card__title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #0f172a;
    line-height: 1.25;
}

body.auth-page-v2 .auth-card__lead {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    line-height: 1.45;
    color: #64748b;
}

body.auth-page-v2 .auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem;
    padding: 0.22rem;
    margin-bottom: 0.9rem;
    border-radius: 0.65rem;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

body.auth-page-v2 .auth-tab {
    border: none;
    background: transparent;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.4rem 0.6rem;
    border-radius: 0.5rem;
    color: #64748b;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

body.auth-page-v2 .auth-tab:hover {
    color: #334155;
}

body.auth-page-v2 .auth-tab.is-active {
    background: #fff;
    color: #4338ca;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

body.auth-page-v2 .auth-channel-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem;
    padding: 0.18rem;
    margin-bottom: 0.85rem;
    border-radius: 0.55rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

body.auth-page-v2 .auth-channel-tab {
    border: none;
    background: transparent;
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.35rem 0.5rem;
    border-radius: 0.4rem;
    color: #64748b;
    cursor: pointer;
}

body.auth-page-v2 .auth-channel-tab.is-active {
    background: #fff;
    color: #0f766e;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

body.auth-page-v2 .auth-type-switch {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 0.12rem;
    border-radius: 999px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

body.auth-page-v2 .auth-type-switch__btn {
    border: none;
    background: transparent;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    padding: 0.28rem 0.62rem;
    border-radius: 999px;
    color: #64748b;
    cursor: pointer;
}

body.auth-page-v2 .auth-type-switch__btn.is-active {
    background: #fff;
    color: #0f766e;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

body.auth-page-v2 .auth-channel-panel.is-hidden,
body.auth-page-v2 .auth-login-panel.is-hidden {
    display: none;
}

body.auth-page-v2 .auth-pane.is-hidden {
    display: none;
}

body.auth-page-v2 .auth-section + .auth-section {
    margin-top: 0.85rem;
    padding-top: 0.85rem;
    border-top: 1px solid #f1f5f9;
}

body.auth-page-v2 .auth-section__title {
    margin: 0 0 0.55rem;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #94a3b8;
}

body.auth-page-v2 .auth-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.28rem;
}

body.auth-page-v2 :not(.auth-field-grid) > .auth-field-group + .auth-field-group {
    margin-top: 0.7rem;
}

body.auth-page-v2 .auth-field-grid {
    display: grid;
    gap: 0.7rem;
    align-items: start;
}

body.auth-page-v2 .auth-field-grid .auth-field-group + .auth-field-group {
    margin-top: 0;
}

@media (min-width: 520px) {
    body.auth-page-v2 .auth-field-grid--2 {
        grid-template-columns: 1fr 1fr;
    }
}

body.auth-page-v2 .auth-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #334155;
    line-height: 1.3;
}

body.auth-page-v2 .auth-label__req {
    color: #dc2626;
    font-weight: 700;
}

body.auth-page-v2 .auth-field {
    width: 100%;
    margin: 0;
    border: 1px solid #dbe2ea;
    border-radius: 0.65rem;
    padding: 0.52rem 0.7rem;
    font-size: 0.875rem;
    line-height: 1.35;
    color: #0f172a;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

body.auth-page-v2 .auth-field::placeholder {
    color: #94a3b8;
}

body.auth-page-v2 .auth-field:focus {
    outline: none;
    border-color: #818cf8;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

body.auth-page-v2 .auth-verify-block {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

body.auth-page-v2 .auth-verify-block--spaced {
    margin-top: 0.7rem;
}

body.auth-page-v2 .auth-verify-row {
    display: grid;
    grid-template-columns: minmax(4.5rem, auto) 1fr auto;
    gap: 0.5rem;
    align-items: center;
}

@media (max-width: 420px) {
    body.auth-page-v2 .auth-verify-row {
        grid-template-columns: 1fr;
    }
    body.auth-page-v2 .auth-verify-row #auth-reg-captcha-q,
    body.auth-page-v2 .auth-verify-row #auth-login-captcha-q {
        min-width: 0;
    }
}

body.auth-page-v2 .auth-verify-row--code {
    grid-template-columns: 1fr auto;
}

body.auth-page-v2 #auth-reg-captcha-q {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.35rem;
    padding: 0 0.55rem;
    border-radius: 0.55rem;
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.8125rem;
    color: #475569;
    white-space: nowrap;
}

body.auth-page-v2 .auth-btn-primary {
    width: 100%;
    margin-top: 0.9rem;
    padding: 0.58rem 0.9rem;
    border: none;
    border-radius: 0.6rem;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.22);
    transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
}

body.auth-page-v2 .auth-btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.28);
}

body.auth-page-v2 .auth-btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

body.auth-page-v2 .auth-btn-secondary {
    padding: 0.45rem 0.7rem;
    min-height: 2.35rem;
    border-radius: 0.55rem;
    border: 1px solid #dbe2ea;
    background: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #334155;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s ease, background 0.15s ease;
}

body.auth-page-v2 .auth-btn-secondary:hover:not(:disabled) {
    border-color: #cbd5e1;
    background: #f8fafc;
}

body.auth-page-v2 .auth-btn-secondary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

body.auth-page-v2 .auth-msg {
    margin-top: 0.7rem;
    min-height: 1.1rem;
    font-size: 0.8125rem;
    line-height: 1.45;
    text-align: center;
}

body.auth-page-v2 .auth-msg--err {
    color: #b91c1c;
}

body.auth-page-v2 .auth-msg--ok {
    color: #047857;
}

/* 页脚贴底：覆盖全站 fixed + 滑入动画，在登录/注册页始终置于视口底部 */
body.auth-page-v2 #hf-site-footer.hf-site-footer {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    flex-shrink: 0;
    z-index: 1;
    margin-top: auto;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
}

/* login credential mode: text link switch (no tab bar) */
body.auth-page-v2 .auth-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
body.auth-page-v2 .auth-label-row--panel {
    margin-bottom: 0.55rem;
}
body.auth-page-v2 .auth-mode-link {
    border: none;
    background: none;
    padding: 0;
    margin: 0;
    font-size: 0.75rem;
    font-weight: 600;
    color: #4f46e5;
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.2;
}
body.auth-page-v2 .auth-mode-link:hover {
    color: #4338ca;
    text-decoration: underline;
}
body.auth-page-v2 .auth-login-panel.is-hidden {
    display: none !important;
}
body.auth-page-v2 #auth-login-panel-password {
    margin-top: 0.7rem;
}
body.auth-page-v2 #auth-login-panel-code {
    margin-top: 0.7rem;
}
body.auth-page-v2 #auth-login-captcha-q {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.35rem;
    padding: 0 0.55rem;
    border-radius: 0.55rem;
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    color: #4338ca;
    font-weight: 700;
    font-size: 0.875rem;
    white-space: nowrap;
}