/* KB AI Keuzehulp v0.3 — site-conform skeleton + conversational tile-cards
 * Design spec: c:\Websites\Websitetoday.dev\design\kb-ai-keuzehulp-design-spec.md
 */

.kb-ai {
    /* ===== Design tokens ===== */
    --kb-primary:    #375EFB;
    --kb-primary-d:  #2347C7;
    --kb-ink:        #0C0D0E;
    --kb-ink-soft:   #4A5260;
    --kb-surface:    #FFFFFF;
    --kb-bg:         #F4F6FA;
    --kb-bg-soft:    #F0F3FB;
    --kb-border:     #E4E7EC;
    --kb-success:    #16A34A;

    --kb-font: "Work Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --kb-r1: 4px;
    --kb-r2: 8px;
    --kb-r3: 12px;
    --kb-elev1: 0 1px 2px rgba(12,13,14,0.04);
    --kb-elev2: 0 4px 12px rgba(12,13,14,0.08);
    --kb-elev3: 0 12px 32px rgba(55,94,251,0.12);

    font-family: var(--kb-font);
    color: var(--kb-ink);
    max-width: 880px;
    margin: 0 auto;
}

/* ===== Container ===== */
.kb-ai__wrap {
    background: var(--kb-surface);
    border: 1px solid var(--kb-border);
    border-radius: var(--kb-r3);
    padding: 32px;
    box-shadow: var(--kb-elev1);
}
@media (max-width: 600px) {
    .kb-ai__wrap { padding: 20px; border-radius: 0; border-left: 0; border-right: 0; }
}

/* ===== Header (intro state) ===== */
.kb-ai__header { margin-bottom: 24px; }
.kb-ai__title {
    font-size: 28px; font-weight: 700; line-height: 1.2;
    margin: 0 0 8px; color: var(--kb-ink);
}
.kb-ai__intro {
    margin: 0; color: var(--kb-ink-soft);
    font-size: 16px; line-height: 1.5;
}
.kb-ai__meta {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 12px;
    font-size: 13px; font-weight: 500;
    color: var(--kb-ink-soft);
    padding: 4px 10px;
    background: var(--kb-bg-soft);
    border-radius: 999px;
}

/* ===== States ===== */
.kb-ai__loading,
.kb-ai__error { padding: 16px 0; color: var(--kb-ink-soft); }
.kb-ai__error {
    color: #b91c1c; background: #fee2e2;
    padding: 14px 16px; border-radius: var(--kb-r2);
}

/* ===== Progress bar ===== */
.kb-ai__progress {
    height: 4px; background: var(--kb-border);
    border-radius: 999px; overflow: hidden; margin: 0 0 8px;
}
.kb-ai__progress-bar {
    height: 100%; background: var(--kb-primary);
    border-radius: 999px; transition: width .3s ease;
}
.kb-ai__step-count {
    font-size: 12px; font-weight: 500; color: var(--kb-ink-soft);
    margin: 0 0 28px; text-transform: uppercase; letter-spacing: 0.04em;
}

/* ===== Question ===== */
.kb-ai__question { border: 0; padding: 0; margin: 0; }
.kb-ai__question-label {
    font-size: 22px; font-weight: 600; line-height: 1.3;
    margin: 0 0 6px; padding: 0; color: var(--kb-ink);
    display: block;
}
.kb-ai__question-hint {
    font-size: 14px; color: var(--kb-ink-soft);
    margin: 0 0 24px;
}

/* ===== Option tile grid (radio + checkbox) ===== */
.kb-ai__options {
    list-style: none; padding: 0; margin: 0;
    display: grid; gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.kb-ai__options--2 { grid-template-columns: repeat(2, 1fr); max-width: 480px; }
.kb-ai__options--wide { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }

.kb-ai__option {
    position: relative;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 10px;
    min-height: 130px;
    padding: 18px 12px;
    background: var(--kb-surface);
    border: 2px solid var(--kb-border);
    border-radius: var(--kb-r2);
    cursor: pointer;
    text-align: center;
    transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.kb-ai__option:hover {
    border-color: var(--kb-primary);
    transform: translateY(-2px);
    box-shadow: var(--kb-elev2);
}
.kb-ai__option:focus-within {
    outline: 3px solid rgba(55,94,251,0.25); outline-offset: 2px;
}
.kb-ai__option input { position: absolute; opacity: 0; pointer-events: none; }
.kb-ai__option--selected {
    border-color: var(--kb-primary);
    background: var(--kb-bg-soft);
    box-shadow: var(--kb-elev3);
}
.kb-ai__option--selected::after {
    content: "✓";
    position: absolute; top: 8px; right: 10px;
    width: 22px; height: 22px;
    background: var(--kb-primary); color: #fff;
    border-radius: 50%;
    font-size: 14px; font-weight: 700; line-height: 22px;
}

.kb-ai__option-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    color: var(--kb-primary);
    transition: color .15s;
}
.kb-ai__option-icon svg { display: block; }
.kb-ai__option--selected .kb-ai__option-icon { color: var(--kb-primary-d); }
.kb-ai__option:hover .kb-ai__option-icon { color: var(--kb-primary-d); }

.kb-ai__option-label {
    font-size: 15px; font-weight: 600;
    color: var(--kb-ink); line-height: 1.3;
}

/* Meta-pill in intro (klok-icoon inline) */
.kb-ai__meta svg { vertical-align: -2px; margin-right: 2px; opacity: .7; }
.kb-ai__btn svg  { vertical-align: -3px; }

/* AI reason — kleine intro-zin per product */
.kb-ai__product-reason {
    font-size: 14px; line-height: 1.5;
    color: var(--kb-ink-soft); margin: 6px 0 8px;
    font-style: italic;
}
.kb-ai__product--top .kb-ai__product-reason { color: var(--kb-ink); font-style: normal; }

/* Product-badge — met check-icoon */
.kb-ai__product-badge {
    display: inline-flex; align-items: center; gap: 4px;
}
.kb-ai__product-badge svg { vertical-align: middle; }

/* ===== Alternatives section ===== */
.kb-ai__alternatives {
    margin-top: 12px; padding-top: 28px;
    border-top: 1px dashed var(--kb-border);
}
.kb-ai__alt-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 17px; font-weight: 600; margin: 0 0 4px;
    color: var(--kb-ink);
}
.kb-ai__alt-title svg { color: var(--kb-primary); }
.kb-ai__alt-sub {
    margin: 0 0 16px;
    font-size: 13px; color: var(--kb-ink-soft);
}
.kb-ai__alts {
    list-style: none; padding: 0; margin: 0 0 24px;
    display: grid; gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.kb-ai__alt {
    display: flex; gap: 12px;
    background: var(--kb-bg-soft);
    border: 1px solid var(--kb-border);
    border-radius: var(--kb-r2);
    padding: 12px;
    transition: border-color .15s, box-shadow .15s;
}
.kb-ai__alt:hover { border-color: var(--kb-primary); box-shadow: var(--kb-elev1); }
.kb-ai__alt-img-wrap {
    width: 80px; height: 80px;
    background: var(--kb-surface);
    border-radius: var(--kb-r1);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}
.kb-ai__alt-img { max-width: 100%; max-height: 100%; object-fit: contain; }
.kb-ai__alt-body { flex: 1; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.kb-ai__alt-tag {
    align-self: flex-start;
    font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.04em;
    color: var(--kb-primary);
    background: rgba(55,94,251,0.10);
    padding: 2px 8px; border-radius: 999px;
    margin-bottom: 2px;
}
.kb-ai__alt-name {
    font-size: 14px; font-weight: 600; margin: 0;
    color: var(--kb-ink); line-height: 1.3;
    overflow: hidden; text-overflow: ellipsis;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.kb-ai__alt-reason {
    font-size: 12px; color: var(--kb-ink-soft); margin: 0; line-height: 1.4;
}
.kb-ai__alt-meta {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 4px;
}
.kb-ai__alt-price { font-size: 14px; font-weight: 600; color: var(--kb-ink); }
.kb-ai__alt-link {
    font-size: 13px; font-weight: 600;
    color: var(--kb-primary); text-decoration: none;
}
.kb-ai__alt-link:hover { color: var(--kb-primary-d); }

/* Compact variant (used for value question with 7 options) */
.kb-ai__options--chips { grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); }
.kb-ai__options--chips .kb-ai__option {
    min-height: 70px; padding: 14px 10px; gap: 4px;
}
.kb-ai__options--chips .kb-ai__option-label { font-size: 14px; }

/* ===== Navigation ===== */
.kb-ai__nav {
    margin-top: 28px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px;
}
.kb-ai__btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 24px;
    border-radius: var(--kb-r1); border: 0; cursor: pointer;
    font: inherit; font-size: 15px; font-weight: 600;
    transition: background-color .15s, opacity .15s, transform .05s;
}
.kb-ai__btn:disabled { opacity: .45; cursor: not-allowed; }
.kb-ai__btn:not(:disabled):active { transform: translateY(1px); }
.kb-ai__btn--primary {
    background: var(--kb-primary); color: #fff;
}
.kb-ai__btn--primary:not(:disabled):hover { background: var(--kb-primary-d); }
.kb-ai__btn--dark {
    background: var(--kb-ink); color: #fff;
}
.kb-ai__btn--dark:not(:disabled):hover { background: #1F2937; }
.kb-ai__btn--ghost {
    background: transparent; color: var(--kb-ink-soft);
    padding: 12px 8px; font-size: 14px;
}
.kb-ai__btn--ghost:hover { color: var(--kb-ink); }

/* ===== Intro CTA ===== */
.kb-ai__cta { margin-top: 20px; }
.kb-ai__cta .kb-ai__btn { padding: 14px 28px; font-size: 16px; }

/* ===== Loading ===== */
.kb-ai__submitting {
    text-align: center; padding: 48px 24px;
}
.kb-ai__spinner {
    width: 44px; height: 44px; margin: 0 auto 20px;
    border: 3px solid var(--kb-border);
    border-top-color: var(--kb-primary);
    border-radius: 50%;
    animation: kb-ai-spin 0.9s linear infinite;
}
.kb-ai__submitting-title {
    font-size: 18px; font-weight: 600; margin: 0 0 12px;
}
.kb-ai__submitting-steps {
    list-style: none; padding: 0; margin: 0 auto;
    display: inline-flex; flex-direction: column;
    align-items: flex-start; gap: 6px;
    font-size: 14px; color: var(--kb-ink-soft);
}
.kb-ai__submitting-steps li::before {
    content: "•"; color: var(--kb-primary); margin-right: 8px; font-weight: 700;
}

@keyframes kb-ai-spin { to { transform: rotate(360deg); } }

/* ===== Results ===== */
.kb-ai__results-title {
    font-size: 24px; font-weight: 700; margin: 0 0 4px;
}
.kb-ai__results-sub {
    color: var(--kb-ink-soft); margin: 0 0 24px; font-size: 14px;
}
.kb-ai__message {
    margin: 0 0 28px; line-height: 1.6;
    color: var(--kb-ink-soft);
    max-width: 720px;
}
.kb-ai__message p { margin: 0 0 12px; }
.kb-ai__message p:last-child { margin: 0; }
.kb-ai__message strong { color: var(--kb-ink); }

.kb-ai__products {
    list-style: none; padding: 0; margin: 0 0 24px;
    display: grid; gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.kb-ai__product {
    position: relative;
    background: var(--kb-surface);
    border: 1px solid var(--kb-border);
    border-radius: var(--kb-r2);
    overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .15s, box-shadow .15s, border-color .15s;
}
.kb-ai__product:hover {
    transform: translateY(-3px);
    box-shadow: var(--kb-elev2);
    border-color: var(--kb-primary);
}
.kb-ai__product--top {
    border-color: var(--kb-primary);
    box-shadow: var(--kb-elev3);
}
.kb-ai__product-badge {
    position: absolute; top: 12px; left: 12px;
    background: var(--kb-primary); color: #fff;
    font-size: 11px; font-weight: 700; letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 4px 10px; border-radius: var(--kb-r1);
    z-index: 1;
}
.kb-ai__product-img-wrap {
    aspect-ratio: 4/3;
    background: var(--kb-bg-soft);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.kb-ai__product-img {
    width: 100%; height: 100%; object-fit: contain;
    padding: 12px;
}
.kb-ai__product-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.kb-ai__product-title {
    font-size: 16px; font-weight: 600; line-height: 1.3; margin: 0;
    color: var(--kb-ink);
}
.kb-ai__product-brand {
    font-size: 13px; color: var(--kb-ink-soft); margin: 0;
}
.kb-ai__product-fits {
    list-style: none; padding: 0; margin: 8px 0 12px;
    display: flex; flex-direction: column; gap: 4px;
    font-size: 13px;
}
.kb-ai__product-fits li {
    display: flex; align-items: baseline; gap: 6px;
    color: var(--kb-ink-soft);
}
.kb-ai__product-fits li::before {
    content: "●"; font-size: 8px; line-height: 1;
    color: var(--kb-success);
    transform: translateY(-2px);
}
.kb-ai__product-fits li.kb-ai__fit--near::before { color: var(--kb-primary); }
.kb-ai__product-price {
    font-size: 18px; font-weight: 700; color: var(--kb-ink); margin: auto 0 12px;
}
.kb-ai__product-price-suffix { font-size: 12px; color: var(--kb-ink-soft); font-weight: 500; margin-left: 4px; }
.kb-ai__product-cta {
    background: var(--kb-ink); color: #fff;
    text-decoration: none;
    text-align: center;
    padding: 11px 14px;
    border-radius: var(--kb-r1);
    font-size: 14px; font-weight: 600;
    transition: background-color .15s;
}
.kb-ai__product-cta:hover { background: var(--kb-primary); color: #fff; }

.kb-ai__restart {
    text-align: center; padding-top: 8px;
    border-top: 1px solid var(--kb-border);
    color: var(--kb-ink-soft); font-size: 14px;
}
.kb-ai__restart .kb-ai__btn { color: var(--kb-primary); }

/* ===== Mobile ===== */
@media (max-width: 540px) {
    .kb-ai__title { font-size: 22px; }
    .kb-ai__question-label { font-size: 18px; }
    .kb-ai__option { min-height: 110px; padding: 14px 10px; }
    .kb-ai__option-icon { font-size: 28px; }
    .kb-ai__option-label { font-size: 14px; }
    .kb-ai__options { gap: 8px; }
}