/* AI Assistant – Matches approved mockup */

/* ── Outer container ── */
.sn-ai {
    background: var(--sn-card-bg);
    border: 1px solid var(--sn-border);
    border-radius: var(--sn-radius-xl);
    overflow: hidden;
    box-shadow: var(--sn-shadow-md);
    position: relative;
}

/* ── Header: soft background ── */
.sn-ai__header {
    background: linear-gradient(135deg, rgba(91,108,255,0.08) 0%, rgba(139,92,246,0.06) 100%);
    border-bottom: 1px solid var(--sn-border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sn-ai__header-icon {
    width: 40px;
    height: 40px;
    background: var(--sn-gradient);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sn-ai__header-icon svg {
    width: 24px;
    height: 24px;
    color: #FFFFFF;
}

.sn-ai__header-label {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--sn-primary);
    margin-bottom: 1px;
}

.sn-ai__header-text h2,
.sn-ai__header-title {
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--sn-text-primary);
    letter-spacing: -0.02em;
    margin: 0 0 1px 0;
    line-height: 1.3;
}

.sn-ai__header-text p,
.sn-ai__header-subtitle {
    font-size: 0.8125rem;
    color: var(--sn-text-muted);
    margin: 0;
    line-height: 1.4;
}

/* ── Body wrapper ── */
.sn-ai__body {
    padding: 24px 28px;
}

/* ── Suggested prompts: 4 SEO groups ── */
.sn-ai__prompts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    /* Collapsed groups must not stretch to match an open neighbour's height. */
    align-items: start;
    gap: 12px;
    margin-bottom: 24px;
    transition: gap 0.35s ease, margin-bottom 0.35s ease;
}

.sn-ai__prompts--compact {
    gap: 8px;
    margin-bottom: 14px;
}

.sn-ai__prompts--hidden {
    display: none;
}

/* ── Prompts label (collapsible) ── */
.sn-ai__prompts-label {
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--sn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    max-height: 24px;
    overflow: hidden;
    transition: max-height 0.35s ease, margin-bottom 0.35s ease, opacity 0.35s ease;
    opacity: 1;
}

.sn-ai__prompts-label--hidden {
    max-height: 0;
    margin-bottom: 0;
    opacity: 0;
}

/* ── Group card ── */
.sn-ai__prompt-group {
    background: var(--sn-page-bg);
    border: 1px solid var(--sn-border);
    border-radius: 12px;
    padding: 14px 16px;
}

/* ── Accordion header ── */
.sn-ai__group-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

/* Hide the native disclosure triangle in favour of the chevron. */
.sn-ai__group-summary::-webkit-details-marker {
    display: none;
}

.sn-ai__group-summary:hover .sn-ai__group-title {
    color: var(--sn-primary);
}

.sn-ai__group-summary:focus-visible {
    outline: 2px solid var(--sn-primary);
    outline-offset: 3px;
    border-radius: 6px;
}

.sn-ai__group-chevron {
    flex-shrink: 0;
    color: var(--sn-text-muted);
    transition: transform var(--sn-transition);
}

.sn-ai__prompt-group[open] .sn-ai__group-chevron {
    transform: rotate(180deg);
}

/* ── Accordion body ── */
.sn-ai__group-items {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--sn-border);
}

/* H3: group heading – visually small for SEO */
.sn-ai__group-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--sn-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0;
    line-height: 1.3;
    transition: color var(--sn-transition);
}

/* H4: question item – visually small for SEO */
.sn-ai__prompt-item {
    margin: 0;
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
}

/* Button inside H4 */
.sn-ai__prompt-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 7px 10px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    font-family: var(--sn-font);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sn-text-secondary);
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.4;
}

.sn-ai__prompts--compact .sn-ai__prompt-btn {
    padding: 5px 8px;
    font-size: 0.75rem;
}

.sn-ai__prompt-btn:hover {
    border-color: var(--sn-primary);
    color: var(--sn-primary);
    background: var(--sn-primary-soft);
}

.sn-ai__prompt-icon {
    font-size: 0.875rem;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
}

.sn-ai__prompts--compact .sn-ai__prompt-icon {
    font-size: 0.8rem;
    width: 16px;
}

/* ── Chat container ── */
.sn-ai__chat {
    border: 1px solid var(--sn-border);
    border-radius: var(--sn-radius);
    overflow: hidden;
    background: var(--sn-page-bg);
}

.sn-ai__chat-messages {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: 400px;
    overflow-y: auto;
    scroll-behavior: smooth;
    transition: max-height 0.4s ease;
}

.sn-ai__chat-messages--expanded {
    max-height: 60vh;
}

/* Custom scrollbar */
.sn-ai__chat-messages::-webkit-scrollbar {
    width: 6px;
}

.sn-ai__chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.sn-ai__chat-messages::-webkit-scrollbar-thumb {
    background: var(--sn-border);
    border-radius: 3px;
}

/* ── Message row ── */
.sn-ai__message {
    display: flex;
    gap: 10px;
    max-width: 85%;
}

.sn-ai__message--user {
    margin-left: auto;
    flex-direction: row-reverse;
}

/* Avatar */
.sn-ai__avatar {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: 700;
}

.sn-ai__message--user .sn-ai__avatar {
    background: var(--sn-accent);
    color: #FFFFFF;
}

.sn-ai__message--assistant .sn-ai__avatar {
    background: var(--sn-gradient);
    color: #FFFFFF;
}

.sn-ai__avatar svg {
    width: 14px;
    height: 14px;
}

/* Bubble */
.sn-ai__bubble {
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 0.8625rem;
    line-height: 1.65;
    word-break: break-word;
}

.sn-ai__message--user .sn-ai__bubble {
    background: var(--sn-gradient);
    color: #FFFFFF;
    border-bottom-right-radius: 4px;
}

.sn-ai__message--assistant .sn-ai__bubble {
    background: var(--sn-card-bg);
    color: var(--sn-text-body);
    border: 1px solid var(--sn-border);
    border-bottom-left-radius: 4px;
}

.sn-ai__message--assistant .sn-ai__bubble strong {
    color: var(--sn-primary);
    font-weight: 700;
}

.sn-ai__message--assistant .sn-ai__bubble p {
    margin: 0 0 8px 0;
}

.sn-ai__message--assistant .sn-ai__bubble p:last-child {
    margin-bottom: 0;
}

.sn-ai__bubble a {
    color: var(--sn-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.sn-ai__message--user .sn-ai__bubble a {
    color: #fff;
}

/* ── Headings inside assistant bubble ── */
.sn-ai__heading {
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.35;
    margin: 14px 0 6px;
    color: var(--sn-text-primary);
}

.sn-ai__bubble > .sn-ai__heading:first-child,
.sn-ai__bubble > p:first-child + .sn-ai__heading {
    margin-top: 4px;
}

.sn-ai__heading--2 {
    font-size: 0.95rem;
}

.sn-ai__heading--3 {
    font-size: 0.88rem;
}

.sn-ai__heading--4 {
    font-size: 0.84rem;
}

/* ── Tables inside assistant bubble ── */
.sn-ai__table-wrap {
    margin: 10px 0 12px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 8px;
    border: 1px solid var(--sn-border);
}

.sn-ai__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    line-height: 1.5;
    white-space: nowrap;
}

.sn-ai__table th,
.sn-ai__table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--sn-border);
}

.sn-ai__table th {
    background: var(--sn-primary-soft, rgba(91,108,255,0.06));
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--sn-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.sn-ai__table tbody tr:last-child td {
    border-bottom: none;
}

.sn-ai__table tbody tr:hover {
    background: var(--sn-page-bg, rgba(0,0,0,0.02));
}

.sn-ai__table td {
    color: var(--sn-text-secondary);
    white-space: normal;
}

.sn-ai__table td strong {
    color: var(--sn-text-primary);
}

/* ── Lists inside assistant bubble ── */
.sn-ai__list {
    margin: 6px 0 10px;
    padding-left: 0;
    list-style: none;
}

.sn-ai__list li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 4px;
}

.sn-ai__list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--sn-primary, #5B6CFF);
    opacity: 0.7;
}

/* ── Thinking indicator (shimmer + animated phases) ── */
.sn-ai__thinking {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 4px 0;
}

.sn-ai__thinking-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--sn-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: sn-thinking-pulse-icon 1.5s ease-in-out infinite;
}

.sn-ai__thinking-icon svg {
    width: 18px;
    height: 18px;
    color: #FFFFFF;
}

.sn-ai__thinking-content {
    flex: 1;
    min-width: 0;
}

.sn-ai__thinking-text {
    display: block;
    font-size: 0.82rem;
    color: var(--sn-text-muted, #6B7280);
    font-style: italic;
    margin-bottom: 8px;
    animation: sn-thinking-fade 2.5s ease-in-out infinite;
}

.sn-ai__thinking-shimmer {
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(
        90deg,
        var(--sn-border, #e5e7eb) 0%,
        var(--sn-accent, #5B6CFF) 40%,
        #8B5CF6 60%,
        var(--sn-border, #e5e7eb) 100%
    );
    background-size: 200% 100%;
    animation: sn-shimmer-move 1.8s linear infinite;
}

@keyframes sn-thinking-pulse-icon {
    0%, 100% {
        opacity: 0.7;
        transform: scale(0.92);
    }
    50% {
        opacity: 1;
        transform: scale(1.08);
    }
}

@keyframes sn-thinking-fade {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes sn-shimmer-move {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── Chat input area ── */
.sn-ai__input-area {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: var(--sn-card-bg);
    border-top: 1px solid var(--sn-border);
}

.sn-ai__textarea,
.sn-ai__input {
    flex: 1;
    border: 1px solid var(--sn-border);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 0.8625rem;
    font-family: var(--sn-font);
    color: var(--sn-text-primary);
    background: var(--sn-page-bg);
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}

.sn-ai__textarea::placeholder,
.sn-ai__input::placeholder {
    color: var(--sn-text-muted);
}

.sn-ai__textarea:focus,
.sn-ai__input:focus {
    border-color: var(--sn-primary);
}

/* Send button */
.sn-ai__send-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sn-gradient);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(91,108,255,0.25);
}

.sn-ai__send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(91,108,255,0.4);
}

.sn-ai__send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.sn-ai__send-btn svg {
    width: 16px;
    height: 16px;
    color: #FFFFFF;
}

/* ── Disclaimer ── */
.sn-ai__disclaimer {
    text-align: center;
    font-size: 0.6875rem;
    color: var(--sn-text-muted);
    margin-top: 14px;
    padding: 0 28px;
    line-height: 1.5;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .sn-ai__prompts {
        grid-template-columns: 1fr;
    }

    .sn-ai__body {
        padding: 14px;
    }

    .sn-ai__header {
        padding: 14px;
    }

    .sn-ai__header-icon {
        display: none;
    }

    .sn-ai__message {
        max-width: 95%;
    }

    .sn-ai__chat-messages--expanded {
        max-height: 50vh;
    }

    .sn-ai__input-area {
        gap: 6px;
    }

    .sn-ai__input {
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
}