#success-msg {
    display: none;
    margin-top: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.45;
    color: #14532d;
    background: #dcfce7;
    border: 1px solid #bbf7d0;
}

#success-msg.visible { display: block; }

#error-msg {
    display: none;
    margin-top: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.45;
    color: #7f1d1d;
    background: #fee2e2;
    border: 1px solid #fecaca;
}

#error-msg.visible { display: block; }

.session-banner {
    display: none;
    margin-bottom: 14px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 13px;
    line-height: 1.45;
    color: #334155;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

.session-banner.visible {
    display: block;
}

.beta-invite-banner {
    display: none;
    margin-bottom: 14px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 13px;
    line-height: 1.45;
    color: #4c1d95;
    background: #ede9fe;
    border: 1px solid #c4b5fd;
}

.beta-invite-banner.visible {
    display: block;
}

.beta-invite-banner strong {
    color: #312e81;
}

.session-banner strong {
    color: #0f172a;
}

.session-banner button {
    margin-top: 10px;
    padding: 10px 14px;
    font-size: 14px;
    background: #fff;
    color: #334155;
    border: 1px solid #cbd5e1;
}

button:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 18px 0 14px;
    color: var(--muted, #9ca3af);
    font-size: 13px;
    font-weight: 600;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border, rgba(255, 255, 255, 0.12));
}

.btn-oauth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
    background: #fff;
    color: #1e293b;
    border: 1px solid #e2e8f0;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-oauth svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-oauth-discord svg {
    fill: #5865f2;
}

.support-footnote {
    margin: 18px 0 0;
    text-align: center;
    font-size: 12px;
    line-height: 1.45;
    color: var(--muted, #9ca3af);
}

.support-footnote a {
    color: var(--accent-soft, var(--purple, #6d28d9));
    font-weight: 600;
    text-decoration: none;
}

.word-wars-preview-strip {
    display: none;
    margin: 0 0 18px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(124, 58, 237, 0.25);
    background: rgba(124, 58, 237, 0.08);
    color: #5b21b6;
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
}

.word-wars-preview-strip.visible {
    display: block;
}

.word-wars-preview-strip a {
    color: #6d28d9;
    font-weight: 700;
    text-decoration: none;
}

.word-wars-preview-strip a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    body {
        padding: 12px;
        padding-left: max(12px, env(safe-area-inset-left, 0px));
        padding-right: max(12px, env(safe-area-inset-right, 0px));
        padding-bottom: max(12px, env(safe-area-inset-bottom, 0px));
    }
}