/* ===== 登录页 — GNOME 风格 ===== */

body.page-login {
    padding-top: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 15% 20%, rgba(53,132,228,0.06), transparent 50%),
        radial-gradient(circle at 85% 80%, rgba(145,65,172,0.05), transparent 50%),
        var(--bg);
    padding: 24px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 40px 36px;
}

.login-brand {
    text-align: center;
    margin-bottom: 28px;
}

.login-brand .brand-dot {
    width: 48px;
    height: 48px;
    margin: 0 auto 14px;
    display: block;
    box-shadow: 0 4px 16px rgba(53,132,228,0.3);
}

.login-brand h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin: 0 0 6px;
}

.login-brand .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.login-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0 16px;
}
.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-light);
}
.login-divider span {
    font-size: 0.78rem;
    color: var(--text-dim);
    white-space: nowrap;
}

.login-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    padding: 4px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}
.login-tab {
    flex: 1;
    padding: 8px 12px;
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all 0.15s;
}
.login-tab:hover { color: var(--text); }
.login-tab.active {
    background: var(--card-bg);
    color: var(--primary);
    box-shadow: var(--shadow);
}

.login-form-actions { margin-top: 20px; }

.guest-info {
    margin-top: 16px;
    padding: 12px 14px;
    background: var(--blue-light);
    border: 1px solid var(--blue-1);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--blue-4);
    line-height: 1.5;
}

.guest-info strong { color: var(--blue-3); }