/* The app pages (MCS-441): one look for every app, shared by web/src/<app>.html. Lightbox: feature.js. */
.feature-page figure { margin: 0; }
.feature-page h1, .feature-page h2, .feature-page h3 { line-height: 1.2; margin: 0; letter-spacing: -.01em; }
.feature-page h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; }
.feature-page h3 { font-size: 20px; font-weight: 700; }
.feature-page .lead { font-size: 18px; color: var(--muted); max-width: 720px; }
.feature-page .center { text-align: center; }
.feature-page .center .lead { margin-left: auto; margin-right: auto; }
.feature-page section { padding: 88px 0; }
.feature-page .band { background: var(--band); }

.feature-page .hero { padding: 40px 0 72px; background: radial-gradient(1100px 500px at 75% 10%, var(--hero), transparent 70%); }
.feature-page .hero .grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; margin-top: 28px; }
.feature-page .beta-note { margin: 16px 0 0; max-width: 640px; padding: 10px 14px; border-radius: 10px; background: var(--beta-bg); color: var(--beta); font-size: 15px; }
.feature-page .beta-note a { color: inherit; font-weight: 600; }
.feature-page .eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--accent-text); background: var(--accent-soft); padding: 6px 12px; border-radius: 999px; }
.feature-page .hero h1 { font-size: clamp(38px, 5vw, 60px); font-weight: 800; margin: 18px 0 18px; letter-spacing: -.02em; }
.feature-page .hero .lead { font-size: 19px; }
.feature-page .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.feature-page .note { font-size: 14px; color: var(--muted); margin-top: 18px; }
.feature-page .shot {
  border-radius: 12px; overflow: hidden; border: 1px solid var(--border);
  box-shadow: var(--shadow); background: var(--panel); cursor: zoom-in;
  transition: transform .2s ease;
}
.feature-page .shot:hover { transform: translateY(-2px); }
.feature-page .shot img { width: 100%; height: auto; aspect-ratio: 1424 / 835; }

/* Trust strip */
.feature-page .strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--band); padding: 22px 0; }
.feature-page .strip ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; font-size: 15px; color: var(--muted); font-weight: 500; }
.feature-page .strip li { display: flex; align-items: center; gap: 8px; }
.feature-page .strip svg { color: var(--accent-text); flex: none; }

/* Feature grid */
.feature-page .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.feature-page .card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 26px; }
.feature-page .card .ico { width: 44px; height: 44px; border-radius: 11px; background: var(--accent-soft); color: var(--accent-text); display: grid; place-items: center; margin-bottom: 16px; }
.feature-page .card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-page .card p { margin: 0; color: var(--muted); font-size: 15px; }
.feature-page .card a.more { display: inline-flex; align-items: center; min-height: 44px; margin-top: 4px; font-weight: 600; font-size: 15px; text-decoration: none; }

/* Feature rows */
.feature-page .row { display: grid; grid-template-columns: 1fr 1.35fr; gap: 64px; align-items: center; padding: 56px 0; }
.feature-page .row + .row { border-top: 1px solid var(--border); }
.feature-page .row.flip { grid-template-columns: 1.35fr 1fr; }
.feature-page .row.flip .text { order: 2; }
.feature-page .row .tag { background: none; padding: 0; border-radius: 0; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-text); }
.feature-page .row h3 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; margin: 10px 0 14px; }
.feature-page .row p { color: var(--muted); margin: 0 0 16px; font-size: 17px; }
.feature-page .row ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.feature-page .row li { display: flex; gap: 10px; font-size: 15.5px; }
.feature-page .row li::before { content: ''; flex: none; width: 18px; height: 18px; margin-top: 3px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234f46e5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L19 7'/%3E%3C/svg%3E") center / 11px no-repeat; }

/* Gallery */
.feature-page .gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-top: 48px; }
.feature-page .gallery figure { margin: 0; }
.feature-page .gallery figcaption { margin-top: 14px; }
.feature-page .gallery figcaption strong { display: block; font-size: 17px; }
.feature-page .gallery figcaption span { color: var(--muted); font-size: 15px; }

/* Steps */
.feature-page .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; counter-reset: s; }
.feature-page .step { position: relative; padding: 26px; border-radius: 14px; background: var(--panel); border: 1px solid var(--border); }
.feature-page .step::before { counter-increment: s; content: counter(s); display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 14px; }
.feature-page .step h3 { font-size: 17px; margin-bottom: 6px; }
.feature-page .step p { margin: 0; color: var(--muted); font-size: 15px; }

/* Tool directory */
.feature-page .tools { columns: 3 280px; column-gap: 40px; margin-top: 48px; }
.feature-page .tools div { break-inside: avoid; margin-bottom: 30px; }
.feature-page .tools h3 { font-size: 16px; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.feature-page .tools h3 svg { color: var(--accent-text); }
.feature-page .tools ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; }
.feature-page .tools li { font-size: 15px; color: var(--muted); }

/* FAQ */
.feature-page .faq { max-width: 860px; margin: 40px auto 0; }
.feature-page .faq details { border-bottom: 1px solid var(--border); padding: 4px 0; }
.feature-page .faq summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 600; font-size: 17px; position: relative; }
.feature-page .faq summary::-webkit-details-marker { display: none; }
.feature-page .faq summary::after { content: '+'; position: absolute; right: 6px; top: 12px; font-size: 26px; font-weight: 400; color: var(--accent-text); }
.feature-page .faq details[open] summary::after { content: '–'; }
.feature-page .faq details p { margin: 0 0 18px; color: var(--muted); }

/* Closing band */
.feature-page .closing { background: linear-gradient(135deg, #0a66d8, #0b3d82); color: #fff; border-radius: 20px; padding: 56px 40px; text-align: center; }
.feature-page .closing h2 { color: #fff; }
.feature-page .closing p { color: #dce9ff; font-size: 18px; max-width: 640px; margin: 14px auto 0; }
.feature-page .closing .btn.primary { background: #fff; color: #312e81; }
.feature-page .closing .btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.feature-page .closing .cta { justify-content: center; }
/* Files they open and save (Sheets, Docs, Slides, Photo) */
.feature-page .formats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 20px; margin-top: 40px; }
.feature-page .formats h3 { font-size: 17px; margin-bottom: 10px; }
.feature-page .formats ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; color: var(--muted); font-size: 15px; }

/* Lightbox */
.feature-page dialog.lightbox { padding: 0; border: 0; background: transparent; max-width: 96vw; max-height: 94vh; }
.feature-page dialog.lightbox::backdrop { background: rgba(8, 10, 20, .82); }
.feature-page dialog.lightbox img { max-width: 96vw; max-height: 88vh; width: auto; border-radius: 10px; }
.feature-page dialog.lightbox p { color: #e6e7ef; text-align: center; margin: 10px 0 0; font-size: 15px; }
.feature-page dialog.lightbox button { position: fixed; top: 14px; right: 18px; background: rgba(255,255,255,.14); color: #fff; border: 0; width: 44px; height: 44px; border-radius: 50%; font-size: 22px; cursor: pointer; }

@media (max-width: 960px) {
  .feature-page .hero .grid, .feature-page .row, .feature-page .row.flip { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .feature-page .row.flip .text { order: 0; }
  .feature-page .grid-3 { grid-template-columns: 1fr 1fr; }
  .feature-page .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .feature-page section { padding: 64px 0; }
  .feature-page .grid-3, .feature-page .steps, .feature-page .gallery { grid-template-columns: 1fr; }
  .feature-page .row { padding: 40px 0; }
  .feature-page .closing { padding: 40px 22px; }
}

/* /plus (MCS-629) */
.plus-page .hero .pill { margin-bottom: 16px; }
.plus-page .hero h1 { margin-inline: auto; text-align: center; }
.plus-page .hero .lead { margin-top: 16px; }
.plus-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 28px 0 0; }
.plus-plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.plus-plans .card { display: flex; flex-direction: column; gap: 8px; }
.plus-plans h2 { font-size: 20px; }
.plus-plans ul { margin: 8px 0 16px; padding-left: 18px; display: grid; gap: 6px; flex: 1; align-content: start; }
.plus-plans .btn { align-self: stretch; text-align: center; justify-content: center; }
.plus-page .card .plus-price { margin: 0; font-size: 36px; font-weight: 800; color: var(--text, inherit); }
.plus-page .plus-price small { font-size: 15px; font-weight: 500; color: var(--muted); }
.plus-year { margin: 0; font-size: 14px; color: var(--muted); }
.plus-note { margin: 20px 0 0; text-align: center; font-size: 14px; color: var(--muted); }
.plus-packs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 32px; }
.plus-packs .card { display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center; }
.plus-packs strong { font-size: 26px; font-weight: 800; }
.plus-packs span { font-size: 14px; color: var(--muted); }
.plus-packs b { margin-top: 8px; font-size: 20px; }
.plus-uses { margin-top: 20px; }
.plus-small { margin: 10px 0 0; font-size: 14px; color: var(--muted); }
@media (max-width: 820px) {
  .plus-plans { grid-template-columns: minmax(0, 1fr); }
  .plus-packs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* /photo-plugins (MCS-635): a guide with tables and code */
.dev-page .hero h1 { margin-inline: auto; text-align: center; }
.dev-page .hero .lead { margin-top: 16px; }
.dev-page .hero .note { margin-top: 14px; color: var(--muted); font-size: 15px; }
.dev-page .narrow { max-width: 860px; }
.dev-page .narrow h2 { margin-bottom: 14px; }
.dev-page .narrow p { color: var(--muted); }
.dev-page .narrow p strong { color: var(--text); }
.dev-page pre { background: var(--chip); padding: 16px 18px; border-radius: 12px; overflow-x: auto; margin: 18px 0; font-size: 14px; line-height: 1.55; }
.dev-page pre code { padding: 0; background: none; font-size: inherit; overflow-wrap: normal; white-space: pre; }
.dev-table { overflow-x: auto; margin: 18px 0 24px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); }
.dev-table table { width: 100%; border-collapse: collapse; font-size: 15px; }
.dev-table th, .dev-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.dev-table tr:last-child td { border-bottom: 0; }
.dev-table th { font-weight: 600; background: var(--band); }
.dev-table td:first-child { white-space: nowrap; }
.dev-list { margin: 0; padding-left: 20px; display: grid; gap: 8px; color: var(--muted); }
.dev-page .formats code { font-size: 13px; }

/* /plus#credits (MCS-906): AI, only when you want it. Three ways, then the calculator built from prices.ts. */
.ai-kicker { font-size: 17px; font-weight: 600; color: var(--accent-text); margin: 0 0 10px; }
.ai-sec h2 { letter-spacing: -.03em; }
.ai-ways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 36px; }
.ai-way { position: relative; display: grid; gap: 6px; align-content: start; }
.ai-way h3 { margin: 6px 0 0; }
.ai-way p { margin: 0; }
.ai-ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--chip); color: var(--text); }
.ai-way-main { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); box-shadow: 0 14px 34px color-mix(in srgb, var(--accent) 14%, transparent); }
.ai-way-main .ai-ico { background: var(--accent-soft); color: var(--accent-text); }
.ai-tag { justify-self: start; margin-top: 8px; font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--chip); color: var(--muted); }
.ai-way-main .ai-tag { background: var(--accent-soft); color: var(--accent-text); }
.ai-calc { margin-top: 28px; padding: 32px; border-radius: 24px; background: var(--band); display: grid; gap: 22px; }
.ai-calc-head h3 { font-size: clamp(22px, 2.4vw, 28px); letter-spacing: -.02em; margin: 0; }
.ai-calc-head p { margin: 6px 0 0; color: var(--muted); }
.ai-packs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.ai-pack { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 18px 10px; border-radius: 16px; border: 1.5px solid var(--border); background: var(--panel); color: var(--text); font: inherit; cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .15s; }
.ai-pack:hover { transform: translateY(-2px); }
.ai-pack strong { font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.ai-pack span { font-size: 13.5px; color: var(--muted); }
.ai-pack b { margin-top: 6px; font-size: 19px; }
.ai-pack[aria-checked="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.ai-pack:focus-visible, .ai-model button:focus-visible { outline: 3px solid color-mix(in srgb, var(--button) 55%, transparent); outline-offset: 2px; }
.ai-model { display: inline-flex; justify-self: start; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 999px; background: var(--chip); }
.ai-model button { border: 0; background: none; color: var(--muted); font: inherit; font-weight: 600; font-size: 15px; padding: 8px 16px; border-radius: 999px; cursor: pointer; min-height: 40px; }
.ai-model button small { font-weight: 500; color: var(--faint); margin-left: 4px; }
.ai-model button[aria-checked="true"] { background: var(--panel); color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,.08); }
.ai-rows { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.ai-rows li { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) auto; grid-template-areas: "task bar count" "each each each"; align-items: center; gap: 2px 16px; padding: 14px 18px; border-radius: 14px; background: var(--panel); }
.ai-task { grid-area: task; font-weight: 600; }
.ai-bar { grid-area: bar; height: 8px; border-radius: 4px; background: var(--chip); overflow: hidden; }
.ai-bar i { display: block; height: 100%; border-radius: 4px; background: var(--accent); transition: width .5s cubic-bezier(.2,.8,.2,1); }
.ai-count { grid-area: count; font-size: 26px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; min-width: 3.5ch; text-align: right; }
.ai-each { grid-area: each; color: var(--faint); font-size: 13px; }
.ai-note { margin: 0; color: var(--muted); font-size: 14.5px; }
@media (max-width: 860px) { .ai-ways { grid-template-columns: minmax(0, 1fr); } .ai-packs { grid-template-columns: repeat(2, minmax(0, 1fr)); } .ai-calc { padding: 20px; } .ai-rows li { grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "task count" "bar bar" "each each"; } }
@media (prefers-reduced-motion: reduce) { .ai-bar i, .ai-pack { transition: none; } }