.va {
    max-width: 420px;
    border-radius: var(--radius);
    overflow: hidden;
    font-family: system-ui;
    background:
        linear-gradient(
            135deg,
            color-mix(in srgb, var(--cream) 82%, #fff),
            color-mix(in srgb, var(--soft) 58%, #fff),
            color-mix(in srgb, var(--sage, var(--soft)) 68%, #fff)
        );
    border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    transition: transform .12s ease, box-shadow .12s ease;
}

.va:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgb(0 0 0 / .12);
}

.va-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 44px;
    padding: 10px 14px;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
    background: color-mix(in srgb, var(--cream) 45%, #fff);
}

.va-header:empty {
    display: none;
}

.va-pill {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
    background: color-mix(in srgb, #fff 86%, var(--soft));
    opacity: .9;
}

.va-log {
    height: clamp(220px, 34vh, 310px);
    overflow: auto;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #fff;
    border-top: 1px solid color-mix(in srgb, var(--border) 48%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--border) 48%, transparent);
}

.va-log:empty::before {
    content: "start a chat...";
    color: color-mix(in srgb, var(--muted) 78%, #fff);
    font-size: .95rem;
    margin: auto;
}

.va-msg {
    padding: 10px 12px;
    border-radius: 14px;
    max-width: min(85%, 680px);
    line-height: 1.3;
}

.va-me {
    align-self: flex-end;
    background: color-mix(in srgb, var(--soft) 28%, #fff);
    border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}

.va-bot {
    align-self: flex-start;
    background: #fff;
    border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}

.va-form {
    display: flex;
    gap: 8px;
    padding: 12px 14px;
    border-top: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}

.va-input {
    flex: 1;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
    background: color-mix(in srgb, #fff 90%, var(--cream));
    outline: none;
}

.va-input:focus {
    border-color: color-mix(in srgb, var(--sage) 55%, var(--pink));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--soft) 28%, transparent);
}

.va-btn {
    appearance: none;
    -webkit-appearance: none;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
    background: #fff;
    color: var(--text);
    -webkit-text-fill-color: var(--text);
    font-weight: 600;
    opacity: 1;
    cursor: pointer;
    transition: background .12s ease, transform .12s ease;
}

.va-btn:hover {
    background: color-mix(in srgb, var(--cream) 45%, #fff);
    color: var(--text);
    -webkit-text-fill-color: var(--text);
}

.va-btn:focus-visible {
    color: var(--text);
    -webkit-text-fill-color: var(--text);
}

.va-btn:disabled {
    opacity: 1;
    color: var(--text);
    -webkit-text-fill-color: var(--text);
}

.va-btn:active {
    transform: translateY(1px);
}

.va-controls {
    display: flex;
    gap: 14px;
    padding: 10px 14px 12px;
    border-top: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
    font-size: 13px;
}

.va-link {
    background: none;
    border: none;
    color: #444;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.va-link:hover {
    color: #2f2f2f;
}

section[aria-labelledby="vibe-agent-title"] .va {
    width: 100%;
    max-width: none;
    box-sizing: border-box;
}

section[aria-labelledby="vibe-agent-title"] {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.va-typing {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 20px;
}

.va-typing span {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: currentColor;
    opacity: 0.25;
    animation: va-dot 1s infinite ease-in-out;
}

.va-typing span:nth-child(2) {
    animation-delay: 0.15s;
}

.va-typing span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes va-dot {
    0%,
    80%,
    100% {
        transform: translateY(0);
        opacity: 0.25;
    }

    40% {
        transform: translateY(-3px);
        opacity: 0.9;
    }
}

@media (max-width: 640px) {
    .va-log {
        height: 260px;
    }

    .va-msg {
        max-width: 92%;
    }
}

/* tighten top spacing to match comment-box header rhythm */
section[aria-labelledby="vibe-agent-title"] .section-title {
    margin-bottom: 0;
}

section[aria-labelledby="vibe-agent-title"] .meta-note {
    margin: 0 0 .25rem;
}

section[aria-labelledby="vibe-agent-title"] {
    gap: .45rem;
}

@media (max-width: 640px) {
    .va-form {
        flex-direction: column;
        gap: 10px;
    }

    .va-btn {
        width: 100%;
        background: color-mix(in srgb, var(--coral) 28%, #fff);
        border-color: color-mix(in srgb, var(--coral) 42%, var(--border));
        color: color-mix(in srgb, var(--text) 88%, #000);
        -webkit-text-fill-color: color-mix(in srgb, var(--text) 88%, #000);
    }

    .va-controls {
        flex-wrap: wrap;
        gap: 10px;
    }
}