/* Public pages: concise overview, with details on dedicated feature pages. */
.public-nav { background: var(--rk-bg); backdrop-filter: none; -webkit-backdrop-filter: none; border-bottom-color: var(--rk-border); }
/* Keep the glow static: moving blurred backgrounds compete with the 3D logo on mobile. */
.page-aurora .blob, .page-aurora .stars { animation: none; will-change: auto; }
.public-nav .container, .home-hero .container, .home-section .container, .home-final-cta .container, .feature-page > .container, .site-footer .container { max-width: 1140px; }
.home-hero { padding: 5rem 0 4rem; }
.home-hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 4rem; }
.home-kicker { display: inline-flex; align-items: center; gap: .5rem; color: var(--rk-accent-soft); font-size: .72rem; font-weight: 700; letter-spacing: .06em; }
.home-kicker > span { width: 7px; height: 7px; border-radius: 50%; background: var(--rk-accent); }
.home-hero h1 { font-size: clamp(2.7rem, 4.8vw, 3.9rem); line-height: 1.1; letter-spacing: -.05em; font-weight: 800; margin: 1.15rem 0 1.25rem; }
.home-hero-copy > p { color: var(--rk-muted); font-size: 1rem; line-height: 1.8; margin-bottom: 1.5rem; }
.home-hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.4rem; }
.home-hero-actions .btn { font-size: .94rem; padding: .85rem 1.15rem; }
.home-text-link { display: inline-flex; align-items: center; gap: .5rem; color: var(--rk-text); font-size: .85rem; font-weight: 650; text-decoration: none; }
.home-text-link:hover { color: var(--rk-accent-soft); }
.home-hero-notes { display: flex; gap: 1rem; flex-wrap: wrap; color: var(--rk-muted); font-size: .73rem; margin-top: 1.15rem; }
.home-hero-notes i { color: var(--rk-accent-soft); margin-right: .2rem; }
/* Shared image layers avoid per-layer mask rendering; only the parent rotates. */
.home-logo-scene { position: relative; min-width: 0; min-height: 400px; display: grid; place-items: center; perspective: 1000px; isolation: isolate; }
.home-logo-scene::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse, rgba(var(--rk-accent-rgb), .13), transparent 65%); pointer-events: none; }
.home-logo-scene::after { content: ""; position: absolute; bottom: 0; left: 18%; right: 18%; height: 50px; background: radial-gradient(ellipse, rgba(var(--rk-accent-rgb), .2), transparent 70%); pointer-events: none; }
.home-logo-3d { position: relative; width: min(100%, 310px); aspect-ratio: 1; transform-style: preserve-3d; -webkit-transform-style: preserve-3d; transform: rotateX(-10deg) rotateY(-24deg); will-change: transform; animation: raiku-logo-turn 32s linear infinite; }
.home-logo-layer, .home-logo-face { position: absolute; inset: 0; display: block; width: 100%; height: 100%; backface-visibility: visible; }
.home-logo-layer { object-fit: contain; transform: translateZ(var(--depth)); }
.home-logo-face { object-fit: contain; }
.home-logo-front { transform: translateZ(8.5px); }
.home-logo-back { transform: translateZ(-8.5px); filter: brightness(.85); }
.home-logo-3d img { pointer-events: none; user-select: none; -webkit-user-select: none; }
.home-logo-scene.is-idle .home-logo-3d { animation-play-state: paused; will-change: auto; }
@keyframes raiku-logo-turn { from { transform: rotateX(-10deg) rotateY(-24deg); } to { transform: rotateX(-10deg) rotateY(336deg); } }
@media (max-width: 991.98px), (pointer: coarse) {
  .home-logo-layer { transform: translateZ(calc(var(--depth) * .5)); }
  .home-logo-layer:nth-child(even) { display: none; }
  .home-logo-front { transform: translateZ(4.5px); }
  .home-logo-back { transform: translateZ(-4.5px); }
}
.home-section { padding: 3.5rem 0; scroll-margin-top: 6rem; }
.home-section-heading { margin-bottom: 1.65rem; }
.home-section-heading h2 { margin: .5rem 0; font-size: clamp(1.6rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.035em; }
.home-section-heading p { color: var(--rk-muted); margin: 0; font-size: .88rem; }
.home-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.home-feature-card { position: relative; display: flex; gap: .85rem; align-items: flex-start; padding: 1.25rem; color: var(--rk-text); text-decoration: none; background: rgba(var(--rk-surface-rgb), .7); border: 1px solid var(--rk-border); border-radius: 16px; transition: border-color .18s, background .18s; }
.home-feature-card:hover { color: var(--rk-text); border-color: var(--rk-accent-soft); background: rgba(var(--rk-primary-rgb), .08); }
.home-feature-card:focus-visible, .home-text-link:focus-visible { outline: 2px solid var(--rk-accent-soft); outline-offset: 4px; }
.home-feature-card > div { min-width: 0; }
.home-feature-icon { display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; border-radius: 11px; background: rgba(var(--rk-primary-rgb), .13); color: var(--rk-accent-soft); font-size: 1.15rem; }
.home-feature-card h3 { display: flex; gap: .45rem; flex-wrap: wrap; align-items: center; font-weight: 750; font-size: .88rem; line-height: 1.4; margin: .1rem 0 .4rem; padding-right: .4rem; }
.home-feature-card p { color: var(--rk-muted); font-size: .77rem; line-height: 1.65; margin: 0; }
.home-feature-star { border-color: rgba(var(--rk-accent-rgb), .35); }
.home-feature-badge { color: var(--rk-accent-soft); font-size: .5rem; font-weight: 800; letter-spacing: .04em; }
.home-feature-arrow { position: absolute; right: .8rem; top: .8rem; font-size: .65rem; color: var(--rk-faint); }
.home-model-section { border-block: 1px solid var(--rk-border); background: rgba(var(--rk-surface-rgb), .25); }
.home-model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.home-model-card { min-width: 0; padding: 1.25rem; border-radius: 16px; border: 1px solid var(--rk-border); background: var(--rk-surface); }
.home-model-heading { display: flex; align-items: center; gap: .7rem; }
.home-model-heading > .vendor-mark { flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; font-size: 1.05rem; }
.home-model-heading > div { min-width: 0; }
.home-model-heading h3 { font-size: .95rem; font-weight: 750; margin: 0 0 .2rem; overflow-wrap: anywhere; }
.home-model-heading div > span { display: block; font-size: .66rem; color: var(--rk-muted); }
.home-model-card > p { font-size: .77rem; line-height: 1.7; color: var(--rk-muted); margin: .9rem 0; }
.home-model-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.home-model-tags > span { display: inline-flex; align-items: center; gap: .25rem; padding: .25rem .5rem; font-size: .62rem; border-radius: 6px; background: rgba(var(--rk-primary-rgb), .1); color: var(--rk-accent-soft); }
.home-heading-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; }
.home-heading-row > .home-text-link { flex-shrink: 0; }
.home-package-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: .9rem; }
.home-package { display: flex; flex-direction: column; min-width: 0; padding: 1.3rem; border: 1px solid var(--rk-border); border-radius: 18px; background: var(--rk-surface); }
.home-package.is-featured { border-color: var(--rk-primary); background: linear-gradient(155deg, rgba(var(--rk-primary-rgb), .1), var(--rk-surface) 70%); }
.home-package-name { display: flex; flex-direction: column; align-items: flex-start; gap: .35rem; min-height: 3rem; }
.home-package-name h3 { font-size: .95rem; font-weight: 750; margin: 0; overflow-wrap: anywhere; }
.home-package-badge { font-size: .56rem; font-weight: 700; color: var(--rk-accent-soft); background: rgba(var(--rk-primary-rgb), .13); border-radius: 5px; padding: .2rem .4rem; }
.home-package-price { font-size: 1.8rem; font-weight: 800; letter-spacing: -.03em; line-height: 1.3; margin: 1rem 0; }
.home-package-amount { display: block; max-width: 100%; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.home-package-price small { display: block; margin-top: .2rem; color: var(--rk-muted); font-size: .68rem; font-weight: 400; letter-spacing: 0; }
.home-package ul { list-style: none; padding: 0; margin: 0 0 1.3rem; display: grid; gap: .55rem; }
.home-package li { display: flex; align-items: flex-start; gap: .5rem; font-size: .74rem; line-height: 1.6; color: var(--rk-text-soft); }
.home-package li i { flex: 0 0 1rem; color: var(--rk-accent-soft); }
.home-package li > span { min-width: 0; overflow-wrap: anywhere; }
.home-package .btn { font-size: .78rem; }
.home-pricing-note { margin: 1rem 0 0; color: var(--rk-muted); font-size: .71rem; line-height: 1.8; }
.home-pricing-note a { color: var(--rk-accent-soft); }
.home-comparison { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; align-items: center; padding-top: 2.5rem; margin-top: 2.5rem; border-top: 1px solid var(--rk-border); }
.home-comparison h3 { font-size: 1.3rem; line-height: 1.4; font-weight: 750; letter-spacing: -.025em; margin: 0 0 .6rem; }
.home-comparison p { font-size: .78rem; color: var(--rk-muted); margin: 0; line-height: 1.7; }
.home-comparison table { width: 100%; font-size: .75rem; border-collapse: collapse; }
.home-comparison th, .home-comparison td { padding: .8rem .75rem; text-align: left; border-bottom: 1px solid var(--rk-border); vertical-align: top; }
.home-comparison thead th { font-weight: 750; color: var(--rk-text); }
.home-comparison tbody th { font-weight: 500; color: var(--rk-muted); }
.home-comparison td { color: var(--rk-muted); }
.home-comparison tr > :last-child { color: var(--rk-accent-soft); background: rgba(var(--rk-primary-rgb), .07); }
.home-comparison tr:last-child > * { border-bottom: 0; }
.home-empty { padding: 1.5rem; border-radius: 14px; border: 1px solid var(--rk-border); color: var(--rk-muted); font-size: .9rem; }
.home-faq { border-top: 1px solid var(--rk-border); }
.home-faq-grid { display: grid; grid-template-columns: 1fr 1.65fr; gap: 3rem; }
.home-faq .accordion-button { font-size: .88rem; line-height: 1.6; padding: 1rem 1.15rem; gap: 1rem; }
.home-faq .accordion-body { font-size: .82rem; line-height: 1.85; padding-inline: 1.15rem; }
.home-faq .accordion-button:focus-visible { box-shadow: inset 0 0 0 2px var(--rk-accent-soft); }
.home-faq .accordion-button::after { flex-shrink: 0; }
.home-final-cta { padding: 0 0 4rem; }
.home-cta-card { text-align: center; padding: 3.25rem 2rem; border: 1px solid var(--rk-border); border-radius: 28px; background: radial-gradient(ellipse at 50% 0, rgba(var(--rk-primary-rgb), .2), transparent 75%), var(--rk-bg-soft); }
.home-cta-mark { display: block; width: 64px; height: 64px; object-fit: contain; margin: 0 auto 1.25rem; filter: drop-shadow(0 0 18px rgba(var(--rk-accent-rgb), .4)); }
.home-cta-card h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); line-height: 1.45; letter-spacing: -.035em; font-weight: 800; margin: 0 auto 1rem; max-width: 780px; }
.home-cta-card p { color: var(--rk-muted); font-size: .88rem; line-height: 1.8; margin: 0 auto 1.5rem; max-width: 520px; }
.home-cta-card .btn { font-size: .95rem; }
.glow-line { height: 1px; background: var(--rk-border); }
.site-footer { background: rgba(var(--rk-surface-rgb), .3); }
.site-footer p, .site-footer li, .site-footer .small { font-size: .75rem; }
.package-card { background: rgba(var(--rk-surface-rgb), .8); }
.feature-page { padding: 2rem 0 4rem; }
.feature-back { margin-bottom: 2.5rem; color: var(--rk-muted); }
.feature-detail-hero { max-width: 760px; }
.feature-detail-hero.with-demo { max-width: none; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 3rem; }
.feature-detail-hero h1 { font-size: clamp(2rem, 3.8vw, 3rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.15; margin: .9rem 0 1rem; }
.feature-detail-hero p { color: var(--rk-muted); font-size: 1rem; line-height: 1.85; margin-bottom: 1.5rem; }
.feature-detail-hero .btn { font-size: .9rem; }
.feature-detail-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin: 3rem 0 1.5rem; padding-top: 2rem; border-top: 1px solid var(--rk-border); }
.feature-step-number { display: inline-block; font-family: 'JetBrains Mono', monospace; color: var(--rk-accent-soft); font-size: .9rem; margin-bottom: .75rem; }
.feature-detail-steps h2 { font-size: 1rem; font-weight: 750; line-height: 1.5; margin: 0 0 .6rem; }
.feature-detail-steps p, .feature-detail-note { color: var(--rk-muted); font-size: .85rem; line-height: 1.8; }
.feature-detail-note { padding: 1rem 1.25rem; background: rgba(var(--rk-primary-rgb), .07); border-radius: 12px; }
.feature-billing-info { margin-top: 2rem; padding: 1.5rem; border-radius: 14px; border: 1px solid var(--rk-border); background: var(--rk-surface); }
.feature-billing-info h2 { font-size: 1.1rem; font-weight: 750; margin: 0 0 .8rem; }
.feature-billing-info ul { color: var(--rk-muted); font-size: .85rem; padding-left: 1.2rem; line-height: 1.9; margin: 0; }
.feature-extra { margin-top: 3rem; }
.feature-extra > .container { padding: 0; }
.feature-extra .section-title { font-size: 1.6rem; }
.feature-extra .section-sub { font-size: .85rem; }
.feature-detail-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--rk-border); }
.eyebrow { display: inline-flex; gap: .4rem; align-items: center; color: var(--rk-accent-soft); font-size: .72rem; font-weight: 700; }
@media (max-width: 1199.98px) { .home-hero-grid { gap: 2rem; } }
@media (max-width: 991.98px) {
  .home-hero { padding-top: 3.5rem; }
  .home-hero-grid { gap: 1.5rem; grid-template-columns: 1.2fr 1fr; }
  .home-logo-scene { min-height: 330px; }
  .home-logo-3d { width: min(100%, 270px); }
  .home-feature-grid, .home-model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-package-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-comparison { grid-template-columns: 1fr; gap: 1.25rem; }
  .feature-detail-hero.with-demo { gap: 1.5rem; }
}
@media (max-width: 767.98px) {
  .home-hero { padding: 2.5rem 0 1.75rem; }
  .home-hero-grid { grid-template-columns: 1fr; gap: .5rem; }
  .home-hero h1 { font-size: clamp(2.55rem, 8.5vw, 3.5rem); }
  .home-logo-scene { min-height: 280px; }
  .home-logo-3d { width: 220px; }
  .home-logo-scene::after { left: 28%; right: 28%; bottom: 5px; }
  .home-section { padding: 2.5rem 0; }
  .home-heading-row { align-items: flex-start; flex-direction: column; }
  .home-feature-grid { grid-template-columns: 1fr; gap: .6rem; }
  .home-feature-card { padding: 1rem; }
  .home-feature-card h3 { font-size: .92rem; }
  .home-feature-card p { font-size: .8rem; }
  .home-package-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-model-grid { grid-template-columns: 1fr; }
  .home-comparison th, .home-comparison td { padding: .7rem .45rem; font-size: .69rem; }
  .home-faq-grid { grid-template-columns: 1fr; gap: 0; }
  .home-final-cta { padding-bottom: 2.5rem; }
  .home-cta-card { padding: 2.5rem 1.25rem; border-radius: 22px; }
  .home-cta-card h2 { font-size: 1.4rem; }
  .feature-detail-hero.with-demo, .feature-detail-steps { grid-template-columns: 1fr; }
  .feature-detail-hero.with-demo { gap: 2rem; }
  .feature-detail-steps { gap: 1rem; margin-top: 2rem; }
  .feature-back { margin-bottom: 1.75rem; }
  .feature-detail-bottom .btn { font-size: .8rem; }
}
@media (max-width: 399.98px) {
  .home-hero-actions { gap: 1rem; }
  .home-hero-notes { gap: .4rem 1rem; }
}
@media (max-width: 575.98px) {
  .home-package-grid { gap: .75rem; }
  .home-package { padding: 1rem; border-radius: 16px; }
  .home-package-price { font-size: clamp(1.25rem, 5.4vw, 1.65rem); margin: .75rem 0 1rem; }
  .home-package .btn { padding-inline: .5rem; }
}
@media (max-width: 479.98px) {
  .home-package-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 9.5rem), 1fr)); }
}
/* Shared sketch demo and prompt previews. */
.sketch-demo { position: relative; margin: 0; padding: 1rem; background: var(--rk-bg-soft); border: 1px solid var(--rk-border-strong); border-radius: 22px; box-shadow: var(--rk-shadow); }
.sketch-demo-bar { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .2rem .15rem 1rem; color: var(--rk-text); font-size: .85rem; }
.sketch-demo-bar > span:first-child { display: inline-flex; align-items: center; flex-wrap: wrap; gap: .4rem; }
.sketch-demo-tag { color: var(--rk-accent-soft); font-size: .65rem; white-space: nowrap; border: 1px solid var(--rk-border-strong); padding: .3rem .5rem; border-radius: 20px; }
.sketch-demo-panels { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .75rem; }
.sketch-demo-panels svg { display: block; width: 100%; height: auto; border-radius: 14px; }
.sketch-panel-label { display: flex; gap: .4rem; align-items: center; margin-bottom: .6rem; color: var(--rk-text); font-size: .75rem; font-weight: 650; }
.sketch-panel-label > span { color: var(--rk-accent-soft); font-family: monospace; }
.sketch-demo-prompt { margin-top: 1rem; padding: .8rem 1rem; background: var(--rk-surface); border: 1px solid var(--rk-border-strong); border-radius: 12px; }
.sketch-demo-prompt > span { display: block; margin-bottom: .3rem; color: var(--rk-muted); font-size: .65rem; text-transform: uppercase; letter-spacing: .1em; }
.sketch-demo-prompt p { margin: 0; color: var(--rk-text); font-size: .82rem; line-height: 1.65; }
.sketch-demo figcaption { margin-top: .75rem; color: var(--rk-muted); font-size: .65rem; text-align: center; }


.landing-prompts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; }
@media (min-width: 768px) { .landing-prompts { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.1rem; } }
.lp-card { display: flex; flex-direction: column; border-radius: 18px; overflow: hidden; color: inherit; text-decoration: none; cursor: pointer; background: rgba(var(--rk-surface-rgb), .75); border: 1px solid rgba(120, 170, 255, .14); transition: transform .25s, border-color .25s, box-shadow .25s; }
.lp-card:hover, .lp-card:focus-visible { color: inherit; transform: translateY(-4px); border-color: rgba(var(--rk-accent-rgb), .45); box-shadow: 0 24px 50px -28px rgba(var(--rk-accent-rgb), .6); outline: none; }
.lp-thumb { position: relative; aspect-ratio: 1; overflow: hidden; background: var(--rk-surface-2); }
.lp-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.lp-card:hover .lp-thumb img { transform: scale(1.05); }
.lp-viral { position: absolute; top: .6rem; left: .6rem; }
.lp-body { padding: .85rem .9rem 1rem; display: grid; gap: .2rem; min-width: 0; }
.lp-lock { margin-top: .35rem; font-size: .76rem; font-weight: 700; color: var(--rk-orange-soft); }
.prompt-gate { position: relative; overflow: hidden; }
.prompt-gate .btn-close { position: absolute; top: .9rem; right: .9rem; z-index: 2; }
.gate-visual { position: relative; height: 170px; display: grid; place-items: center; background: radial-gradient(circle at 30% 20%, rgba(0, 229, 255, .35), transparent 55%), radial-gradient(circle at 80% 90%, rgba(59, 43, 255, .5), transparent 60%), var(--rk-surface-2); }
.gate-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: blur(6px) brightness(.6); transform: scale(1.1); }
.gate-lock { position: relative; width: 64px; height: 64px; border-radius: 20px; display: grid; place-items: center; font-size: 1.6rem; color: #fff; background: var(--rk-gradient); box-shadow: 0 16px 40px -12px rgba(var(--rk-accent-rgb), .8); }
@media (max-width: 399.98px) {
  .sketch-demo { padding: .75rem; }
  .sketch-demo-tag { display: none; }
  .sketch-panel-label { font-size: .65rem; }
}
@media (prefers-reduced-motion: reduce) {
  .home-logo-3d { animation: none; will-change: auto; }
  .lp-card, .lp-thumb img { transition: none; }
  .lp-card:hover, .lp-card:focus-visible, .lp-card:hover .lp-thumb img { transform: none; }
}