/* landing.css — additions for index.html only.
   Under-the-hood cards + FAQ accordion. Reuses theme tokens where
   possible; falls back to the inline :root set (--bg, --text…). */

.uth {
    padding: 120px 40px;
    background: #030303;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.uth-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.uth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1px;
    margin-top: 48px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.uth-card {
    background: #050505;
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: background 140ms cubic-bezier(0.16, 1, 0.3, 1);
}

.uth-card:hover {
    background: #0a0a0a;
}

.uth-kicker {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: #00ff87;
    opacity: 0.85;
}

.uth-title {
    font-size: 18px;
    font-weight: 400;
    color: #ffffff;
    letter-spacing: -0.01em;
    margin: 0;
}

.uth-body {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* ---------- FAQ ---------- */

.faq {
    padding: 120px 40px;
    background: #000000;
}

.faq-inner {
    max-width: 860px;
    margin: 0 auto;
}

.faq-list {
    margin-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-list details {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 22px 0;
}

.faq-list summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    font-size: 16px;
    font-weight: 300;
    color: #ffffff;
    letter-spacing: -0.005em;
    padding: 4px 0;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: '+';
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 20px;
    color: #00ff87;
    font-weight: 300;
    transition: transform 140ms cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-list details[open] summary::after {
    content: '\2212';
    transform: rotate(0deg);
}

.faq-list details[open] summary {
    color: #00ff87;
}

.faq-list details p {
    margin: 14px 0 4px;
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.6);
    max-width: 68ch;
}

@media (max-width: 720px) {
    .uth, .faq { padding: 80px 24px; }
    .uth-grid { margin-top: 32px; }
}

@media (max-width: 600px) {
    .uth, .faq { padding: 56px 1rem; }

    .uth-inner, .faq-inner { max-width: 100%; }

    .uth-card { padding: 24px 18px; gap: 10px; }
    .uth-title { font-size: 16px; }
    .uth-body { font-size: 13px; }
    .uth-grid { margin-top: 24px; }

    .faq-list details { padding: 16px 0; }
    .faq-list summary {
        font-size: 15px;
        min-height: 44px;
        align-items: center;
        gap: 16px;
    }
    .faq-list details p { font-size: 13px; margin-top: 10px; }
}

@media (max-width: 420px) {
    .uth-grid { grid-template-columns: 1fr; }
    .uth, .faq { padding: 48px 1rem; }
    .faq-list summary { font-size: 14px; }
}