/*! SitePilot demo-kit v1 — библиотека анимаций, переходов и блоков для демо. Подключение: <link rel="stylesheet" href="/demo/_kit/kit.css">
   Работает на переменных демо (те же, что для «Настроить»): --bg --surface --ink --muted --line --accent --accent-ink --radius --btn-radius --font-head --font-text.
   Каталог блоков и как их смешивать: /demo/_kit/README.md */
:root{--k-ease:cubic-bezier(.22,.8,.2,1);--k-ease2:cubic-bezier(.65,0,.35,1);--k-dur:.9s;--k-glass:color-mix(in srgb,var(--surface,#fff) 72%,transparent);--k-sh1:0 1px 2px rgba(0,0,0,.04),0 8px 24px -8px rgba(0,0,0,.10);--k-sh2:0 2px 4px rgba(0,0,0,.04),0 30px 60px -24px rgba(0,0,0,.24)}

/* ===== 1. Появление при прокрутке: data-reveal ===== */
.kit [data-reveal]{transition:opacity var(--k-dur) var(--k-ease),transform var(--k-dur) var(--k-ease),filter var(--k-dur) var(--k-ease),clip-path 1.1s var(--k-ease2)}
.kit [data-reveal]:not(.is-in){opacity:0}
.kit [data-reveal=up]:not(.is-in){transform:translateY(40px)}
.kit [data-reveal=down]:not(.is-in){transform:translateY(-40px)}
.kit [data-reveal=left]:not(.is-in){transform:translateX(-60px)}
.kit [data-reveal=right]:not(.is-in){transform:translateX(60px)}
.kit [data-reveal=scale]:not(.is-in){transform:scale(.92)}
.kit [data-reveal=blur]:not(.is-in){transform:translateY(24px);filter:blur(10px)}
.kit [data-reveal=clip]{opacity:1!important}
.kit [data-reveal=clip]:not(.is-in){clip-path:inset(12% 12% 12% 12% round 40px);transform:scale(1.04)}
.kit [data-reveal=clip].is-in{clip-path:inset(0 0 0 0 round 0)}

/* ===== 2. Заголовок по словам: data-words ===== */
.kit-w{display:inline-block;opacity:0;transform:translateY(40%);filter:blur(8px);animation:kitWord .9s var(--k-ease) forwards}
@keyframes kitWord{to{opacity:1;transform:none;filter:none}}
.k-grad{background:linear-gradient(100deg,var(--accent),color-mix(in srgb,var(--accent) 50%,#ffb36b) 60%,color-mix(in srgb,var(--accent) 40%,#5cc8ff));-webkit-background-clip:text;background-clip:text;color:transparent}
.k-shine{background:linear-gradient(110deg,currentColor 40%,color-mix(in srgb,currentColor 30%,#fff) 50%,currentColor 60%);background-size:250% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:kitShine 4s linear infinite}
@keyframes kitShine{from{background-position:100% 0}to{background-position:-150% 0}}

/* ===== 3. Фон: мягкие градиенты, шум, сетка ===== */
.k-mesh{position:relative;isolation:isolate}
.k-mesh::before{content:"";position:absolute;inset:-10%;z-index:-1;pointer-events:none;background:radial-gradient(40% 50% at 15% 20%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 70%),radial-gradient(35% 45% at 85% 10%,rgba(150,170,255,.18),transparent 70%),radial-gradient(30% 40% at 60% 70%,rgba(255,220,170,.22),transparent 70%);animation:kitMesh 18s ease-in-out infinite alternate}
@keyframes kitMesh{to{transform:translate3d(2%,-2%,0) scale(1.05)}}
.k-grid-bg{background-image:linear-gradient(color-mix(in srgb,var(--ink) 6%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--ink) 6%,transparent) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent);mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent)}
.k-spot{position:relative;overflow:hidden}
.k-spot::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.18),transparent 60%);opacity:0;transition:opacity .3s}
.k-spot:hover::after{opacity:1}

/* ===== 4. Поверхности ===== */
.k-glass{background:var(--k-glass);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);box-shadow:inset 0 0 0 1px rgba(255,255,255,.6),var(--k-sh1)}
.k-glass-dark{background:rgba(14,14,18,.55);backdrop-filter:blur(16px);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.k-card{background:var(--surface);border-radius:var(--radius,28px);box-shadow:var(--k-sh1);transition:transform .4s var(--k-ease),box-shadow .4s}
.k-card:hover{transform:translateY(-4px);box-shadow:var(--k-sh2)}
.k-scrim{position:relative;isolation:isolate}
.k-scrim::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(10,10,14,.75),rgba(10,10,14,.45) 40%,rgba(10,10,14,.05) 72%),linear-gradient(0deg,rgba(10,10,14,.6),transparent 45%)}
.k-scrim h1,.k-scrim h2,.k-scrim p{text-shadow:0 2px 24px rgba(0,0,0,.35)}
@media (max-width:760px){.k-scrim::after{background:linear-gradient(0deg,rgba(10,10,14,.85),rgba(10,10,14,.5) 55%,rgba(10,10,14,.1))}}

/* ===== 5. Кнопки ===== */
.k-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:var(--btn-radius,999px);min-height:56px;padding:8px 8px 8px 24px;background:var(--ink);color:#fff;font:600 16px/1.2 var(--font-text,inherit);text-decoration:none;cursor:pointer;transition:transform .3s var(--k-ease),box-shadow .3s,background .2s;box-shadow:0 10px 24px -12px rgba(0,0,0,.5)}
.k-btn .k-ci{width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;transition:transform .35s var(--k-ease)}
.k-btn:hover{transform:translateY(-2px)}.k-btn:hover .k-ci{transform:rotate(-45deg)}
.k-btn.acc{background:var(--accent);color:var(--accent-ink)}.k-btn.acc .k-ci{background:#fff;color:var(--ink)}
.k-btn.glass{background:rgba(255,255,255,.16);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);backdrop-filter:blur(12px);padding:8px 24px}
.k-btn.glass:hover{background:#fff;color:var(--ink)}
.k-btn.fill{overflow:hidden;isolation:isolate}
.k-btn.fill::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .5s var(--k-ease2)}
.k-btn.fill:hover::before{transform:scaleX(1);transform-origin:left}
.k-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1.5px no-repeat;transition:background-size .35s var(--k-ease),gap .25s}
.k-link:hover{background-size:100% 1.5px;gap:10px}

/* ===== 6. Шапка-таблетка ===== */
.k-header{position:fixed;top:14px;left:0;right:0;z-index:40;pointer-events:none}
.k-header>*{pointer-events:auto;max-width:var(--container,1320px);margin:0 auto;border-radius:999px;transition:transform .35s var(--k-ease)}
.k-header.kit-hidden>*{transform:translateY(-140%)}

/* ===== 7. Бегущая строка ===== */
.k-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.k-marquee>*{display:flex;gap:14px;width:max-content;animation:kitMarq 38s linear infinite}
.k-marquee:hover>*{animation-play-state:paused}
.k-marquee.rev>*{animation-direction:reverse}
@keyframes kitMarq{to{transform:translateX(-50%)}}

/* ===== 8. Бенто ===== */
.k-bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:260px;gap:16px}
.k-bento>.w2{grid-column:span 2}.k-bento>.h2{grid-row:span 2}
@media (max-width:1024px){.k-bento{grid-template-columns:repeat(2,minmax(0,1fr))}.k-bento>.h2{grid-row:auto}}
@media (max-width:760px){.k-bento{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}.k-bento>*{flex:0 0 82%;min-height:360px;scroll-snap-align:center}}

/* ===== 9. Стопка липких карточек ===== */
.k-stack>*{position:sticky;top:calc(100px + var(--i,0) * 16px);margin-bottom:24px}
@media (max-width:1024px){.k-stack>*{position:relative;top:auto}}

/* ===== 10. Карусель ===== */
.k-carousel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:12px}
.k-carousel::-webkit-scrollbar{display:none}
.k-carousel>*{flex:0 0 min(400px,85%);scroll-snap-align:start}

/* ===== 11. До/после: data-ba ===== */
.k-ba{position:relative;overflow:hidden;user-select:none;--x:50%;border-radius:var(--radius,28px)}
.k-ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.k-ba .k-do{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--x)) 0 0)}
.k-ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.k-ba .k-h{position:absolute;top:0;bottom:0;left:var(--x);width:3px;margin-left:-1.5px;background:#fff;pointer-events:none}
.k-ba .k-h::after{content:"";position:absolute;top:50%;left:50%;width:56px;height:56px;margin:-28px;border-radius:50%;background:rgba(255,255,255,.8) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23111' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 6l-6 6 6 6M15 6l6 6-6 6'/%3E%3C/svg%3E") center/22px no-repeat;backdrop-filter:blur(10px);box-shadow:0 8px 20px rgba(0,0,0,.25)}

/* ===== 12. Ползунок, переключатели, сегменты ===== */
.k-range{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;cursor:pointer}
.k-range::-webkit-slider-runnable-track{height:8px;border-radius:4px;background:linear-gradient(90deg,var(--accent) var(--p,30%),color-mix(in srgb,var(--ink) 12%,transparent) var(--p,30%))}
.k-range::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;border-radius:50%;background:#fff;margin-top:-9px;box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 30%,transparent),0 4px 10px rgba(0,0,0,.25)}
.k-range::-moz-range-progress{height:8px;border-radius:4px;background:var(--accent)}
.k-seg{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:4px;background:color-mix(in srgb,var(--ink) 5%,var(--bg));padding:5px;border-radius:20px}
.k-seg label{position:relative;cursor:pointer}.k-seg input{position:absolute;opacity:0}
.k-seg span{display:block;text-align:center;padding:11px 6px;border-radius:15px;font-weight:600;font-size:14px;transition:all .25s}
.k-seg input:checked+span{background:var(--surface);box-shadow:var(--k-sh1)}

/* ===== 13. Прогресс чтения ===== */
.k-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:90;background:var(--accent);transform:scaleX(0);transform-origin:left}

/* ===== 14. Пульс, свечение, плавающие элементы ===== */
.k-live{width:8px;height:8px;border-radius:50%;background:#4ade80;animation:kitPing 2s infinite}
@keyframes kitPing{0%{box-shadow:0 0 0 0 rgba(74,222,128,.7)}70%{box-shadow:0 0 0 10px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.k-float{animation:kitFloat 6s ease-in-out infinite}
@keyframes kitFloat{50%{transform:translateY(-10px)}}
.k-zoom-in{animation:kitZoom 2.4s var(--k-ease) both}
@keyframes kitZoom{from{transform:scale(1.08)}to{transform:none}}

@media (prefers-reduced-motion:reduce){.kit [data-reveal]{opacity:1!important;transform:none!important;filter:none!important;clip-path:none!important}.kit-w,.k-marquee>*,.k-mesh::before,.k-float,.k-zoom-in,.k-shine{animation:none!important;opacity:1;transform:none;filter:none}}