/* База механики сайта, общая для всех вариантов.
   Внешний вид задаётся переменными в самом variant-*.html. */

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);overflow-x:hidden;min-height:100vh}
img{display:block}
a{color:inherit}

/* шторка при загрузке */
.curtain{position:fixed;inset:0;background:var(--accent);z-index:200;pointer-events:none;animation:curtain 1.15s cubic-bezier(.7,0,.2,1) .15s forwards}
@keyframes curtain{to{transform:translateY(-101%)}}

/* шапка */
header{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:14px var(--gap);transition:background .4s,box-shadow .4s,padding .4s}
header.scrolled{background:var(--head-bg);backdrop-filter:blur(10px);box-shadow:0 8px 26px -14px var(--shadow);padding:9px var(--gap)}
.logo img{height:60px;width:auto;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.logo:hover img{transform:rotate(-3deg) scale(1.05)}
header.scrolled .logo img{height:48px}
nav{display:flex;align-items:center}
nav a{margin-left:28px;font-size:15px;text-decoration:none;position:relative;padding-bottom:4px}
nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .45s cubic-bezier(.2,.8,.2,1)}
nav a:hover::after{transform:scaleX(1);transform-origin:left}
.cart-btn{margin-left:28px;border:0;cursor:pointer;padding:11px 18px;font:inherit;font-size:15px;font-weight:700;border-radius:999px;background:var(--accent);color:var(--on-accent);transition:transform .3s,box-shadow .3s}
.cart-btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px -10px var(--accent)}
.cart-btn.bump{animation:bump .6s}
@keyframes bump{0%{transform:scale(1)}30%{transform:scale(1.25) rotate(-6deg)}60%{transform:scale(.94)}100%{transform:scale(1)}}

/* ---------- 3D-треугольник: части разлетаются и собираются ---------- */
.tri-stage{perspective:1000px;width:min(440px,88vw);aspect-ratio:1/0.9;display:grid;place-items:center;cursor:grab;user-select:none;touch-action:none;justify-self:center}
.tri-stage:active{cursor:grabbing}
.tri{position:relative;width:min(340px,70vw);aspect-ratio:300/260;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.piece{position:absolute;inset:0;backface-visibility:hidden;will-change:transform,opacity}
/* четыре части исходного треугольника: три уголка и центральная начинка */
.p-top{clip-path:polygon(50% 0,25% 50%,75% 50%);background:var(--dough)}
.p-left{clip-path:polygon(0 100%,25% 50%,50% 100%);background:var(--dough2)}
.p-right{clip-path:polygon(100% 100%,75% 50%,50% 100%);background:var(--dough2)}
.p-center{clip-path:polygon(25% 50%,75% 50%,50% 100%);background:var(--filling)}

/* ---------- корзина ---------- */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:opacity .4s;z-index:60}
.overlay.open{opacity:1;pointer-events:auto}
.cart{position:fixed;top:0;right:0;height:100%;width:min(440px,94vw);background:var(--panel);color:var(--ink);z-index:70;padding:30px 26px;display:flex;flex-direction:column;transform:translateX(105%);transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.cart.open{transform:none}
.cart h3{font-family:var(--font-head);font-size:28px;margin-bottom:18px}
.cart-items{flex:1;overflow:auto}
.line{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 0;border-bottom:1px solid var(--line)}
.line small{display:block;color:var(--muted);font-size:13px}
.qty{display:flex;align-items:center;gap:10px}
.qty button{width:32px;height:32px;border-radius:50%;border:1px solid var(--accent);background:none;color:var(--ink);cursor:pointer;font-size:16px;transition:background .25s,color .25s}
.qty button:hover{background:var(--accent);color:var(--on-accent)}
.sum{display:flex;justify-content:space-between;font-size:22px;font-weight:700;margin:18px 0}
.cart form{display:grid;gap:10px}
.cart input,.cart textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--field);color:var(--ink)}
.cart input:focus,.cart textarea:focus{outline:none;border-color:var(--accent)}
.go{border:0;cursor:pointer;padding:16px;border-radius:var(--btn-radius);background:var(--accent);color:var(--on-accent);font:inherit;font-weight:700;font-size:16px;transition:transform .3s,box-shadow .3s}
.go:hover{transform:translateY(-2px);box-shadow:0 14px 28px -12px var(--accent)}
.empty{color:var(--muted);text-align:center;padding:40px 0}

/* ---------- первый экран ---------- */
.hero{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:130px var(--gap) 80px;position:relative}
.hero h1{font-family:var(--font-head);font-size:clamp(46px,7vw,104px);line-height:.95;font-weight:700;letter-spacing:-.01em}
.hero h1 .w{display:inline-block;opacity:0;transform:translateY(70px) rotate(4deg);animation:up 1s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:var(--d)}
.hero h1 em{font-style:italic;color:var(--accent)}
.hero .lead{font-size:19px;max-width:460px;margin:26px 0 34px;color:var(--muted);opacity:0;animation:up 1s 1s forwards}
.hero .kicker{font-size:13px;letter-spacing:.3em;text-transform:uppercase;color:var(--accent2);margin-bottom:20px;opacity:0;animation:up 1s .1s forwards}
@keyframes up{to{opacity:1;transform:none}}

.btn{position:relative;display:inline-block;padding:16px 32px;border-radius:var(--btn-radius);background:var(--ink);color:var(--bg);text-decoration:none;font-weight:700;overflow:hidden;isolation:isolate;transition:transform .3s,color .4s;opacity:0;animation:up 1s 1.1s forwards}
.btn::before{content:"";position:absolute;inset:0;background:var(--accent);transform:translateX(-101%);transition:transform .55s cubic-bezier(.7,0,.2,1);z-index:-1}
.btn:hover::before{transform:none}
.btn:hover{color:var(--on-accent);transform:translateY(-2px)}
.hint{margin-top:18px;font-size:13px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}

/* ---------- разделы и меню ---------- */
section{padding:110px var(--gap);position:relative}
.title{font-family:var(--font-head);font-size:clamp(38px,5vw,66px);line-height:1;margin-bottom:14px}
.sub{color:var(--muted);max-width:560px;margin-bottom:48px;font-size:17px}
.menu{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px}
.item{position:relative;perspective:1100px}
.card{position:relative;height:100%;padding:28px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);transform-style:preserve-3d;transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s,background .4s;box-shadow:var(--card-shadow)}
.card:hover{box-shadow:var(--card-shadow-hover)}
.card .tag{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:var(--tag);color:var(--tag-ink)}
.card h3{font-family:var(--font-head);font-size:25px;line-height:1.15;margin:14px 0 8px}
.card p{color:var(--muted);font-size:15px;min-height:46px}
.card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px}
.price{font-size:24px;font-weight:700;color:var(--price)}
.add{border:0;cursor:pointer;padding:10px 18px;border-radius:var(--btn-radius);font:inherit;font-size:14px;font-weight:700;background:var(--ink);color:var(--bg);transition:transform .25s,background .3s,color .3s}
.add:hover{transform:translateY(-2px) scale(1.04);background:var(--accent);color:var(--on-accent)}
.add:active{transform:scale(.92)}
.add.flash{animation:flash .5s}
@keyframes flash{0%{box-shadow:0 0 0 0 var(--accent)}100%{box-shadow:0 0 0 16px transparent}}

/* появление блоков при прокрутке */
[data-reveal]{opacity:0;transform:translateY(44px);transition:opacity .9s var(--d,0s),transform 1s cubic-bezier(.2,.8,.2,1) var(--d,0s)}
[data-reveal].in{opacity:1;transform:none}

/* блок «о нас» и заказ */
.about{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about p{font-size:18px;margin-bottom:16px;color:var(--muted)}
.quote{font-family:var(--font-head);font-size:clamp(26px,3vw,38px);font-style:italic;line-height:1.25;border-left:3px solid var(--accent2);padding-left:24px}
.order{text-align:center}
footer{padding:40px var(--gap);text-align:center;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}

@media (max-width:820px){
  .hero,.about{grid-template-columns:1fr}
  .hero{padding-top:120px}
  nav a{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1;transform:none}
}