/* 无名缓存 6.0客户端 — 登录 / 注册页 */

.dev-auth-page .rb-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
}

.rb-auth-shell {
    width: 100%;
    max-width: 440px;
}

.rb-auth-card {
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-strong);
    background: rgba(42, 54, 80, 0.82);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: var(--shadow-card), var(--shadow-glow);
    padding: 36px 32px 32px;
}

.rb-auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    text-decoration: none;
    color: inherit;
}

.rb-auth-brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    overflow: hidden;
    flex-shrink: 0;
}

.rb-auth-brand-mark img,
.rb-auth-brand-mark .site-brand-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: inherit;
}

.rb-auth-brand-text h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.rb-auth-brand-text span {
    display: block;
    font-family: var(--font-label);
    font-size: 11px;
    font-weight: 500;
    color: var(--color-accent-warm);
    margin-top: 2px;
}

.rb-auth-head {
    margin-bottom: 24px;
}

.rb-auth-head h2 {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.rb-auth-head p {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.rb-auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.rb-auth-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rb-auth-field label {
    font-family: var(--font-label);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.rb-auth-field input {
    width: 100%;
    height: 44px;
    padding: 0 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.rb-auth-field input::placeholder {
    color: var(--text-dimmed);
}

.rb-auth-field input:focus {
    border-color: rgba(96, 165, 250, 0.65);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.rb-auth-submit {
    margin-top: 4px;
    width: 100%;
    height: 46px;
    border: 0;
    border-radius: var(--radius-sm);
    font-family: var(--font-label);
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    box-shadow: 0 4px 18px rgba(37, 99, 235, 0.32);
    transition: var(--transition);
}

.rb-auth-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    transform: translateY(-1px);
}

.rb-auth-submit:disabled {
    opacity: 0.65;
    cursor: wait;
}

.rb-auth-alert {
    display: none;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.55;
    border: 1px solid rgba(248, 113, 113, 0.35);
    background: rgba(127, 29, 29, 0.25);
    color: #fecaca;
}

.rb-auth-alert.is-visible {
    display: block;
}

.rb-auth-foot {
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

.rb-auth-foot a {
    color: var(--color-accent-warm);
    font-weight: 600;
    text-decoration: none;
}

.rb-auth-foot a:hover {
    color: var(--text-primary);
}

.rb-auth-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 20px;
    font-family: var(--font-label);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.rb-auth-back:hover {
    color: var(--text-primary);
}

@media (max-width: 480px) {
    .rb-auth-card {
        padding: 28px 20px 24px;
    }
}