.gai-shell {
    --gai-border: #e5e7eb;
    --gai-text: #111827;
    --gai-muted: #6b7280;
    --gai-bg: #ffffff;
    --gai-soft: #f8fafc;
    max-width: 920px;
    margin: 32px auto;
    padding: clamp(22px, 4vw, 46px);
    background: var(--gai-bg);
    border: 1px solid var(--gai-border);
    border-radius: 22px;
    box-shadow: 0 18px 55px rgba(15, 23, 42, .07);
    color: var(--gai-text);
    font-family: inherit;
}

.gai-shell * { box-sizing: border-box; }

.gai-head { margin-bottom: 28px; }
.gai-head h2 { margin: 6px 0 9px; font-size: clamp(28px, 4vw, 42px); line-height: 1.08; }
.gai-head p { margin: 0; color: var(--gai-muted); font-size: 17px; line-height: 1.6; }
.gai-eyebrow { font-size: 12px; font-weight: 800; letter-spacing: .16em; }

.gai-form { display: grid; gap: 18px; }
.gai-grid { display: grid; gap: 18px; }
.gai-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.gai-form label > span,
.gai-options legend {
    display: block;
    margin-bottom: 7px;
    font-weight: 700;
    font-size: 14px;
}

.gai-form input[type="text"],
.gai-form input[type="email"],
.gai-form input[type="url"],
.gai-form select,
.gai-form textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #cfd5dd;
    border-radius: 10px;
    background: #fff;
    color: var(--gai-text);
    font: inherit;
    outline: none;
}

.gai-form input:focus,
.gai-form select:focus,
.gai-form textarea:focus {
    border-color: #111827;
    box-shadow: 0 0 0 3px rgba(17,24,39,.08);
}

.gai-options {
    border: 1px solid var(--gai-border);
    border-radius: 14px;
    padding: 17px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px 18px;
}
.gai-options legend { padding: 0 7px; }
.gai-options label { display: flex; align-items: center; gap: 8px; font-size: 14px; }

.gai-button {
    appearance: none;
    border: 0;
    border-radius: 11px;
    padding: 14px 19px;
    background: #111827;
    color: #fff;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    justify-self: start;
}
.gai-button:hover { opacity: .9; }
.gai-button:disabled { opacity: .55; cursor: wait; }

.gai-privacy { color: var(--gai-muted); font-size: 12px; margin: -8px 0 0; }
.gai-loading { margin-top: 20px; padding: 15px 18px; background: var(--gai-soft); border-radius: 12px; font-weight: 700; }

.gai-result {
    margin-top: 28px;
    border-top: 1px solid var(--gai-border);
    padding-top: 28px;
}
.gai-result-top { display: flex; align-items: center; gap: 18px; }
.gai-result-top h2 { margin: 0; }
.gai-score {
    width: 82px;
    height: 82px;
    border-radius: 50%;
    display: grid;
    place-content: center;
    background: #111827;
    color: #fff;
    flex: 0 0 auto;
    text-align: center;
}
.gai-score span { font-size: 28px; font-weight: 900; line-height: 1; }
.gai-score small { font-size: 11px; opacity: .75; }

.gai-estimate-strip {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--gai-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
}

.gai-ai-copy { margin-top: 20px; line-height: 1.7; }
.gai-ai-copy h3 { margin: 26px 0 9px; font-size: 20px; }
.gai-ai-copy h4 { margin: 20px 0 7px; }
.gai-ai-copy ul { padding-left: 21px; }
.gai-ai-copy p { margin: 0; }

.gai-cta {
    margin-top: 28px;
    padding: 18px;
    border-radius: 14px;
    background: #111827;
    color: #fff;
}
.gai-cta p { margin: 5px 0 0; opacity: .8; }

.gai-error {
    padding: 16px 18px;
    border: 1px solid #dc2626;
    border-radius: 12px;
    background: #fff7f7;
}
.gai-error p { margin: 6px 0 0; }

@media (max-width: 680px) {
    .gai-grid-2,
    .gai-options { grid-template-columns: 1fr; }
    .gai-result-top { align-items: flex-start; flex-direction: column; }
    .gai-button { width: 100%; }
}

/* =========================================================
   GRAFIUM AI LAB — v1.1
   ========================================================= */
.gai-lab {
    max-width: 1200px;
    margin: 32px auto 80px;
    padding: 0 20px;
    color: #111827;
    font-family: inherit;
}

.gai-lab * { box-sizing: border-box; }

.gai-lab-intro {
    max-width: 780px;
    margin: 0 auto 44px;
    text-align: center;
}

.gai-lab-eyebrow {
    display: inline-block;
    margin-bottom: 12px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
}

.gai-lab-intro h1 {
    margin: 0 0 16px;
    font-size: clamp(38px, 5vw, 64px);
    line-height: 1.05;
    font-weight: 800;
}

.gai-lab-intro p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.65;
    color: #6b7280;
}

.gai-lab-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.gai-lab-card {
    appearance: none;
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 315px;
    width: 100%;
    padding: 32px;
    overflow: hidden;
    text-align: left;
    border: 1px solid #e5e7eb;
    border-radius: 22px;
    background: #fff;
    color: #111827;
    font: inherit;
    cursor: pointer;
    transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
}

.gai-lab-card:hover,
.gai-lab-card:focus-visible {
    transform: translateY(-6px);
    border-color: #111827;
    box-shadow: 0 22px 55px rgba(15, 23, 42, .10);
    outline: none;
}

.gai-lab-card.is-active {
    background: #111827;
    color: #fff;
    border-color: #111827;
    transform: translateY(-6px);
    box-shadow: 0 22px 55px rgba(15, 23, 42, .14);
}

.gai-lab-card.is-active::after {
    content: "SELECTED";
    position: absolute;
    top: 25px;
    right: 25px;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .14em;
    opacity: .68;
}

.gai-lab-number {
    display: block;
    margin-bottom: 54px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .12em;
    opacity: .48;
}

.gai-lab-card-title {
    display: block;
    margin-bottom: 13px;
    font-size: 26px;
    line-height: 1.2;
    font-weight: 800;
}

.gai-lab-card-text {
    display: block;
    margin-bottom: 28px;
    font-size: 15px;
    line-height: 1.65;
    opacity: .72;
}

.gai-lab-card-action {
    display: block;
    margin-top: auto;
    font-size: 14px;
    font-weight: 800;
}

.gai-lab-workspace {
    max-width: 1000px;
    margin: 42px auto 0;
    scroll-margin-top: 120px;
}

.gai-lab-placeholder {
    padding: 54px 30px;
    text-align: center;
    border: 1px solid #e5e7eb;
    border-radius: 22px;
    background: #f8fafc;
}

.gai-lab-placeholder-icon {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: #111827;
    color: #fff;
    font-size: 15px;
    font-weight: 900;
    letter-spacing: .05em;
}

.gai-lab-placeholder h2 {
    margin: 0 0 8px;
    font-size: 28px;
}

.gai-lab-placeholder p {
    margin: 0;
    color: #6b7280;
}

.gai-lab-panel[hidden] { display: none !important; }
.gai-lab-panel > .gai-shell { margin-top: 0; margin-bottom: 0; }

@media (max-width: 900px) {
    .gai-lab-cards { grid-template-columns: 1fr; }
    .gai-lab-card { min-height: 230px; }
    .gai-lab-number { margin-bottom: 30px; }
}

@media (max-width: 600px) {
    .gai-lab { padding: 0 12px; }
    .gai-lab-intro { margin-bottom: 30px; }
    .gai-lab-intro p { font-size: 16px; }
    .gai-lab-card { padding: 26px; }
    .gai-lab-workspace { margin-top: 28px; }
    .gai-lab-placeholder { padding: 40px 20px; }
}