/* =========================================================================
   Paper House «KARNEY» · css/styles.css · shared styles (loaded on every page)
   Clean modern shop: white pages, soft blue tints, rounded cards, one blue accent.
   Load order: styles.css → page file (home | catalog | product | account | about).css
   ========================================================================= */

/* ===== TOKENS ===== */
:root{
  /* surfaces */
  --white:#FFFFFF;
  --ground:#F4F7FC;          /* soft tint for alternating sections and hovers */
  --ground-2:#EAF0FA;
  --sheet:#FFFFFF;
  --tint-blue:#EEF3FF;
  --tint-green:#ECF7F0;
  --tint-sun:#FFF6DC;
  --kraft:#F3E9DA;
  --note:#FFF6CC;
  /* text */
  --ink:#0F1A33;
  --ink-2:#46526B;
  --ink-3:#6B7790;
  --rule:#E3E8F1;
  --rule-sheet:#EDF1F7;
  --rule-strong:#C9D2E1;
  /* brand */
  --blue:#1E4FE0;
  --blue-dark:#1639B0;
  --navy:#0E2466;
  --navy-2:#173384;
  --cyan:#25B9E8;
  --marker:#FFD84D;
  /* semantic */
  --magenta:#E5285A;
  --ok:#14915A;
  --ready:#C27A06;
  --eco:#1A8A4A;
  --err-bg:#FDECF1; --ok-bg:#E8F6EE;
  --overlay:rgba(15,26,51,.45);
  --focus:var(--blue);

  --chevron:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%230F1A33' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  --tick:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.2 6.4 11.1 12.5 4.8' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");

  /* type: one modern family; --mono kept as an alias so older page rules stay readable */
  --sans:"Onest","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:var(--sans);
  --fs-display:clamp(2.4rem,1.3rem + 3.6vw,4.25rem);
  --fs-h1:clamp(2.1rem,1.4rem + 2.6vw,3.5rem);
  --fs-h1-product:clamp(1.6rem,1.15rem + 1.4vw,2.25rem);
  --fs-h2:clamp(1.75rem,1.25rem + 1.8vw,2.75rem);
  --fs-h3:1.2rem;
  --fs-spec:clamp(1.75rem,1rem + 2.4vw,3rem);
  --fs-lead:1.15rem; --fs-body:1rem; --fs-ui:.9375rem; --fs-small:.875rem;
  --fs-btn:.96875rem; --fs-mono:.8125rem; --fs-mono-xs:.75rem;
  --fs-price-card:1.375rem; --fs-price-pdp:2.5rem; --fs-price-total:1.75rem; --fs-price-row:1.0625rem;

  /* layout */
  --container:1440px;
  --gutter:clamp(16px,3.2vw,40px);
  --pad:clamp(20px,4vw,56px);
  --utility-h:0px; --header-h:80px; --nav-h:50px;
  --sticky-top:104px;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px; --s10:128px;
  --r:20px; --r-lg:28px; --r-ctl:12px; --r-pill:999px;
  --hair:1px solid var(--rule); --hair-sheet:1px solid var(--rule-sheet); --frame:1px solid var(--rule-strong);
  --shadow-sm:0 1px 2px rgba(15,26,51,.05),0 2px 8px rgba(15,26,51,.04);
  --shadow:0 18px 40px -18px rgba(15,26,51,.22),0 4px 12px -6px rgba(15,26,51,.08);
  --shadow-lg:0 30px 70px -30px rgba(15,26,51,.35);
  --stack:var(--shadow-sm); --curl:var(--shadow);
  --ease:cubic-bezier(.2,.7,.2,1); --t-fast:150ms; --t:220ms;

  /* z-index */
  --z-header:40; --z-menu-overlay:85; --z-menu:95; --z-search-overlay:120; --z-search:130;
  --z-filter-overlay:140; --z-sheet:150; --z-cart-overlay:150; --z-cart:160; --z-lightbox:180;
  --z-toast:200; --z-noscript:220; --z-skip:300;
  color-scheme:light;

  /* neutralised decorative patterns from the previous direction (page files may still reference them) */
  --fibre:linear-gradient(transparent,transparent);
  --graph:linear-gradient(transparent,transparent);
  --ruler:linear-gradient(transparent,transparent);
  --perf:linear-gradient(transparent,transparent);
  --cmyk:linear-gradient(transparent,transparent);
  --reg:linear-gradient(transparent,transparent);
  --hl:linear-gradient(transparent,transparent);
  --ruled:var(--rule); --margin-line:transparent;

  /* legacy aliases */
  --paper:var(--ground); --paper-deep:var(--ground-2); --ink-soft:var(--ink-2); --muted:var(--ink-3);
  --line:var(--rule); --line-strong:var(--rule-strong); --kraft-deep:var(--ink-2); --copper:var(--blue);
  --olive:var(--navy); --olive-soft:var(--ok-bg); --sale:var(--magenta); --serif:var(--sans); --radius:var(--r);
}
@media (max-width:899px){ :root{ --utility-h:0px; --sticky-top:64px; --header-h:64px; } }

/* ===== BASE ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:#fff;color:var(--ink);
  font:400 var(--fs-body)/1.6 var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
#site-header-host{display:contents}
main{flex:1;overflow-x:clip}
.site-footer{overflow-x:clip}
body.menu-open,body.filters-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
p,h1,h2,h3,h4,figure,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
em,i{font-style:normal}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
[hidden]{display:none!important}
::selection{background:#CFDCFF;color:var(--ink)}
.container{width:min(var(--container),100% - 2*var(--gutter));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.muted{color:var(--ink-3)}
.skip-link{position:absolute;left:12px;top:-60px;z-index:var(--z-skip);background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px;font-weight:600;font-size:.875rem}
.skip-link:focus{top:8px}
.noscript{position:fixed;inset:auto 0 0 0;z-index:var(--z-noscript);margin:0;background:var(--ink);color:#fff;text-align:center;padding:12px 16px;font-size:.875rem}
#delivery,#payment,#returns,#contacts,#stores,#guide{scroll-margin-top:calc(var(--sticky-top) + 16px)}
.utility-bar,.site-footer,.hero-band,.quick-specs,.about-cta-inner{--focus:#fff}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ===== TYPE + SECTIONS ===== */
h1,h2,h3,h4{font-family:var(--sans);color:var(--ink);text-wrap:balance;overflow-wrap:break-word}
h1{font:700 var(--fs-h1)/1.08 var(--sans);letter-spacing:-.025em}
h2{font:700 var(--fs-h2)/1.12 var(--sans);letter-spacing:-.02em}
h3{font:600 var(--fs-h3)/1.3 var(--sans);letter-spacing:-.01em}
p{text-wrap:pretty}
mark{background:none;color:var(--blue);padding:0}

.section{padding-block:clamp(56px,7vw,96px)}
.section.section-tight{padding-block:clamp(36px,5vw,64px)}
/* tinted sections fade in and out of the white page instead of a hard edge */
.section-wash,.section-graph{background:linear-gradient(180deg,#fff 0,var(--ground) clamp(80px,12vw,160px),var(--ground) calc(100% - clamp(80px,12vw,160px)),#fff 100%)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:12px 32px;margin-bottom:clamp(24px,3vw,36px)}
.section-head h2{max-width:20ch}
.section-head .link-arrow,.section-note{white-space:nowrap}
.section-note{font-size:var(--fs-small);color:var(--ink-3)}
.hero-lead{font:400 var(--fs-lead)/1.6 var(--sans);color:var(--ink-2);max-width:46ch;margin:18px 0 28px}
.kicker{display:inline-flex;align-items:center;gap:8px;font:600 .8125rem/1.3 var(--sans);letter-spacing:0;text-transform:none;color:var(--blue);margin:0 0 10px}

/* ===== BUTTONS + LINKS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 24px;border-radius:var(--r-ctl);
  border:1.5px solid transparent;font:600 var(--fs-btn)/1.1 var(--sans);text-align:center;
  transition:background-color var(--t-fast),color var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast),transform var(--t-fast)}
.btn svg{flex:none}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -10px rgba(30,79,224,.7)}
.btn-primary:hover:not(:disabled){background:var(--blue-dark);box-shadow:0 12px 26px -12px rgba(30,79,224,.8)}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--rule-strong)}
.btn-secondary:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}
.btn-ghost{background:transparent;color:var(--ink-2);min-height:44px;padding:0 6px}
.btn-ghost:hover{color:var(--blue)}
.btn:disabled{background:var(--ground-2);color:var(--ink-3);border-color:transparent;box-shadow:none;cursor:not-allowed}
.btn-block{width:100%}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--blue);transition:gap var(--t-fast),color var(--t-fast)}
.link-arrow::after{content:"→";transition:transform var(--t-fast)}
.link-arrow:hover{color:var(--blue-dark)}
.link-arrow:hover::after{transform:translateX(3px)}
.text-btn{margin-top:16px;font-weight:600;color:var(--blue)}
.text-btn:hover{color:var(--blue-dark)}

/* ===== FORMS ===== */
.field{display:flex;flex-direction:column;gap:6px}
.field span{font:500 var(--fs-small)/1.3 var(--sans);color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;min-height:50px;border:1px solid var(--rule-strong);border-radius:var(--r-ctl);
  background:#fff;padding:12px 16px;font:400 16px/1.4 var(--sans);color:var(--ink);transition:border-color var(--t-fast),box-shadow var(--t-fast)}
.field textarea{resize:vertical;min-height:120px}
.field ::placeholder{color:var(--ink-3);opacity:1}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#AEB9CC}
.field input:focus,.field select:focus,.field textarea:focus,.search-panel input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(30,79,224,.14)}
.field select,.sort-wrap select{-webkit-appearance:none;appearance:none;background:#fff var(--chevron) no-repeat right 16px center;padding-right:42px;cursor:pointer}
.sort-wrap select{height:46px;border:1px solid var(--rule-strong);border-radius:var(--r-ctl);padding-left:16px;font:500 var(--fs-small) var(--sans);color:var(--ink)}
.sort-wrap select:hover{border-color:#AEB9CC}
.form-grid{display:grid;gap:14px}
@media (min-width:720px){.form-grid{grid-template-columns:1fr 1fr}}
#feedback-form,.checkout-form,.profile-form,#auth-form{display:grid;gap:16px}
.form-error{margin:0;background:var(--err-bg);color:#9E1238;padding:12px 16px;font-size:var(--fs-small);border-radius:var(--r-ctl)}
.form-success{background:var(--ok-bg);padding:20px 22px;border-radius:var(--r)}
.form-success h3{font:700 1.3rem/1.2 var(--sans);margin-bottom:6px}

.checkbox{display:flex;align-items:flex-start;gap:12px;padding:7px 0;cursor:pointer;font-size:var(--fs-ui)}
.checkbox input{-webkit-appearance:none;appearance:none;width:20px;height:20px;margin:1px 0 0;flex:none;border:1.5px solid var(--rule-strong);border-radius:6px;background:#fff;cursor:pointer;transition:border-color var(--t-fast),background-color var(--t-fast)}
.checkbox:hover input{border-color:var(--blue)}
.checkbox input:checked{background:var(--blue) var(--tick) center/14px no-repeat;border-color:var(--blue)}
.checkbox input:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.checkbox span{display:flex;align-items:baseline;justify-content:space-between;gap:8px;flex:1;min-width:0}
.checkbox em{font-size:.8125rem;color:var(--ink-3);background:var(--ground);border-radius:var(--r-pill);padding:1px 8px}
.checkbox:has(input:checked)>span{font-weight:600}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{display:inline-flex;align-items:center;gap:4px;background:var(--tint-blue);color:var(--blue-dark);border-radius:var(--r-pill);padding:4px 4px 4px 14px;font:500 .875rem/1.2 var(--sans)}
.chip button{width:26px;height:26px;display:grid;place-items:center;font:400 1.05rem/1 var(--sans);border-radius:50%;color:var(--blue-dark)}
.chip button:hover{background:#fff}

.qty{display:inline-flex;align-items:stretch;height:50px;border:1px solid var(--rule-strong);border-radius:var(--r-ctl);background:#fff;overflow:hidden}
.qty button{width:42px;font:400 1.25rem/1 var(--sans);color:var(--ink);transition:background-color var(--t-fast)}
.qty button:hover:not(:disabled){background:var(--ground)}
.qty button:disabled{color:var(--rule-strong);cursor:default}
.qty button:focus-visible{outline-offset:-3px}
.qty span{min-width:2.5ch;display:grid;place-items:center;font:600 var(--fs-ui) var(--sans);font-variant-numeric:tabular-nums}

/* ===== SMALL SHARED BITS ===== */
.hero-band,.quick-specs{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);margin:0;padding:0;list-style:none;border-radius:var(--r);overflow:hidden}
.hero-sheet,.gallery-main,.login-card,.about-figure{position:relative}
.reg,.ruler,.cmyk{display:none!important}
.perf{padding-top:0}
.empty-state::before,.cart-empty::before{content:"";display:block;width:64px;height:64px;border-radius:20px;margin-bottom:20px;
  background:var(--tint-blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231E4FE0' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 3h7l4 4v14H7z'/%3E%3Cpath d='M14 3v4h4M10 12h5M10 16h5'/%3E%3C/svg%3E") center/30px no-repeat}
.leader,.spec-line{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.leader>:last-child,.spec-line strong{text-align:right}
.hl-hover{transition:color var(--t-fast)}
a:hover .hl-hover{color:var(--blue)}
.tab{display:none}
.sale-chip,.status,.stamp,.checkout-success .kicker{display:inline-flex;align-items:center;font:600 .75rem/1 var(--sans);text-transform:none;letter-spacing:0;
  border-radius:var(--r-pill);padding:6px 10px;white-space:nowrap;transform:none;border:0}
.stamp{background:#fff;color:var(--eco);box-shadow:var(--shadow-sm)}

/* ===== HERO VISUAL MOTION (home hero, about hero, eco promo) =====
   transform = entrance + pointer parallax (--px/--py set in app.js), translate = idle float, scale = hover */
.hero-visual,.about-visual{isolation:isolate}
.hero-visual::before,.about-visual::before{content:"";position:absolute;inset:-10%;z-index:-1;border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(30,79,224,.28),rgba(37,185,232,.12) 60%,transparent);filter:blur(24px);
  animation:vis-glow 7s ease-in-out infinite}
.hero-visual::after,.about-visual::after{content:"";position:absolute;inset:-5%;z-index:-1;border-radius:50%;pointer-events:none;
  border:1.5px dashed rgba(30,79,224,.22);animation:vis-in 1s var(--ease) .2s backwards,vis-spin 60s linear infinite}
.hero-img,.about-img{animation:vis-in .9s var(--ease) backwards}
.hero-img img,.about-img img,.promo-frame img{
  transform:translate(calc(var(--px,0) * -14px),calc(var(--py,0) * -14px));
  transition:transform .5s var(--ease),scale .4s var(--ease);
  animation:prod-in 1s var(--ease) .15s backwards,vis-float 6s ease-in-out 1.2s infinite}
.hero-visual:hover img,.about-visual:hover img,.promo-frame:hover img{scale:1.04}
.hero-float,.about-float,.promo-frame .stamp{
  transform:translate(calc(var(--px,0) * 18px),calc(var(--py,0) * 18px));transition:transform .5s var(--ease);
  animation:chip-in .7s var(--ease) .6s backwards,vis-bob 5s ease-in-out 1.4s infinite}
.hero-float-bottom{animation-delay:.8s,2.6s}
/* promo plays when scrolled into view (.is-visible from app.js) */
.js .promo-frame:not(.is-visible),.js .promo-frame:not(.is-visible) *{animation-play-state:paused}
.js .promo-frame{animation:vis-in .9s var(--ease) backwards paused}
.js .promo-frame.is-visible{animation-play-state:running}
@keyframes vis-in{from{opacity:0;transform:scale(.88)}}
@keyframes prod-in{from{opacity:0;transform:translateY(40px) scale(.94)}}
@keyframes chip-in{from{opacity:0;transform:translateY(14px) scale(.94)}}
@keyframes vis-float{50%{translate:0 -10px}}
@keyframes vis-bob{50%{translate:0 -6px}}
@keyframes vis-glow{0%,100%{opacity:.6;scale:.96}50%{opacity:1;scale:1.05}}
@keyframes vis-spin{to{rotate:360deg}}

/* ===== HEADER: dark gradient bar ===== */
.site-top{position:sticky;top:0;z-index:var(--z-header);padding:0;isolation:isolate;transition:box-shadow var(--t),backdrop-filter var(--t)}
.site-top::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,#0B1A4A 0%,#10307F 55%,#1A4FD6 100%);transition:opacity 300ms ease}
.site-top.scrolled{backdrop-filter:saturate(1.4) blur(16px);-webkit-backdrop-filter:saturate(1.4) blur(16px)}
.site-top.scrolled::before{opacity:.72}
.site-top.scrolled{box-shadow:0 12px 30px -18px rgba(14,36,102,.7)}
.utility-bar{display:none}


.header-bar{position:relative;display:flex;align-items:center;gap:14px;min-height:76px;padding:12px 0;border-radius:0;color:#fff;
  background:none;box-shadow:none}
.logo{display:flex;align-items:center;gap:10px;flex:none;color:#fff}
.logo-mark{display:block;width:42px;height:42px;overflow:hidden;flex:none;border-radius:12px;background:#fff}
.logo-mark img{width:100%;height:100%;object-fit:contain;transform:scale(1.12);transform-origin:50% 52%}
.logo-type{display:flex;flex-direction:column;line-height:1}
.logo-type b{font:800 1.2rem/1 var(--sans);letter-spacing:.01em;color:#fff}
.logo-type small{margin-top:4px;font:500 .72rem/1 var(--sans);color:rgba(255,255,255,.65)}

.catalog-drop{position:relative;flex:none;margin-left:14px}
.catalog-btn{display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 14px 0 14px;border-radius:12px;background:var(--blue);color:#fff;
  font:600 .9rem/1 var(--sans);box-shadow:0 8px 18px -10px rgba(30,79,224,.9),inset 0 0 0 1px rgba(255,255,255,.12);transition:background-color var(--t-fast)}
.catalog-btn:hover{background:#2A5DF0}
.catalog-btn .chev{opacity:.85;transition:transform var(--t-fast)}
.catalog-drop:hover .chev,.catalog-drop:focus-within .chev{transform:rotate(180deg)}
.catalog-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:240px;padding:8px;border-radius:16px;background:#fff;box-shadow:var(--shadow-lg);
  display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast)}
.catalog-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.catalog-drop:hover .catalog-menu,.catalog-drop:focus-within .catalog-menu{opacity:1;visibility:visible;transform:none}
.catalog-menu a{padding:11px 14px;border-radius:10px;font:500 .9375rem/1.2 var(--sans);color:var(--ink)}
.catalog-menu a:hover{background:var(--tint-blue);color:var(--blue)}

.header-search{position:relative;flex:1;min-width:0;display:flex;align-items:center;height:44px;margin-left:6px;border-radius:12px;background:#fff;
  box-shadow:0 0 0 2px rgba(255,255,255,.0);transition:box-shadow var(--t-fast)}
.header-search:focus-within{box-shadow:0 0 0 3px rgba(120,160,255,.55)}
.header-search-ico{display:grid;place-items:center;width:42px;flex:none;color:var(--ink-3)}
.header-search-ico svg{width:18px;height:18px}
.header-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;padding:0 8px 0 0;font-size:15px;color:var(--ink);outline:none;-webkit-appearance:none;appearance:none}
.header-search input::placeholder{color:var(--ink-3);opacity:1}
.header-search button{flex:none;height:36px;margin-right:4px;padding:0 26px;border-radius:9px;background:var(--blue);color:#fff;font:600 .875rem/1 var(--sans);transition:background-color var(--t-fast)}
.header-search button:hover{background:var(--blue-dark)}

.header-actions{display:flex;align-items:center;gap:2px;flex:none;margin-left:10px}
.icon-btn{position:relative;min-width:44px;height:44px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;color:#fff;border-radius:12px;transition:background-color var(--t-fast)}
.icon-btn:hover{background:rgba(255,255,255,.1)}
.act-btn{flex-direction:column;gap:4px;height:52px;min-width:66px;padding:0 8px}
.act-ico{position:relative;display:grid;place-items:center;height:22px}
.act-label{font:500 .75rem/1 var(--sans);color:rgba(255,255,255,.88);max-width:10ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* «Покупцям» dropdown */
.info-drop{position:relative;flex:none}
.info-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 12px 0 12px;border-radius:12px;color:#fff;font:600 .9rem/1 var(--sans);
  background:rgba(255,255,255,.1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);transition:background-color var(--t-fast)}
.info-btn svg:first-child{width:19px;height:19px;opacity:.9}
.info-btn:hover,.info-drop:focus-within .info-btn,.info-btn.is-active{background:rgba(255,255,255,.18)}
.info-btn .chev{opacity:.85;transition:transform var(--t-fast)}
.info-drop:hover .chev,.info-drop:focus-within .chev{transform:rotate(180deg)}
.info-menu{position:absolute;top:calc(100% + 10px);left:0;z-index:1;width:540px;padding:10px;border-radius:18px;background:#fff;box-shadow:var(--shadow-lg);color:var(--ink);--focus:var(--blue);
  opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast)}
.info-menu::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.info-drop:hover .info-menu,.info-drop:focus-within .info-menu{opacity:1;visibility:visible;transform:none}
.info-menu-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px}
.info-menu-grid a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;transition:background-color var(--t-fast)}
.info-menu-grid a:hover{background:var(--tint-blue)}
.info-menu-ico{display:grid;place-items:center;width:40px;height:40px;flex:none;border-radius:11px;background:var(--tint-blue);color:var(--blue);transition:background-color var(--t-fast),color var(--t-fast)}
.info-menu-ico svg{width:20px;height:20px}
.info-menu-grid a:hover .info-menu-ico{background:var(--blue);color:#fff}
.info-menu-grid b{display:block;font:600 .9375rem/1.2 var(--sans)}
.info-menu-grid small{display:block;margin-top:3px;font:400 .8125rem/1.3 var(--sans);color:var(--ink-3)}
.info-menu-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px;padding:12px 14px;border-radius:12px;background:var(--ground);font:400 .8125rem/1.3 var(--sans);color:var(--ink-3)}
.info-menu-foot a{display:inline-flex;align-items:center;gap:8px;font:700 .9375rem/1 var(--sans);color:var(--ink)}
.info-menu-foot a:hover{color:var(--blue)}
.info-menu-foot svg{color:var(--blue)}

.act-sale .act-ico{color:#FF4D6A}
.act-new .act-ico{color:#FFD24D}
.count-badge{position:absolute;top:-6px;right:-10px;min-width:18px;height:18px;padding:0 5px;border-radius:var(--r-pill);display:grid;place-items:center;
  background:var(--magenta);color:#fff;font:700 .6875rem/1 var(--sans);box-shadow:0 0 0 2px #10307F}
.count-badge:empty,.count-badge[data-count="0"]{display:none}
.cart-btn{height:50px;margin-left:8px;padding:0 16px 0 14px;gap:12px;border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 6px 16px -10px rgba(0,0,0,.5)}
.cart-btn:hover{background:#EEF3FF}
.cart-btn .act-ico{color:var(--ink)}
.cart-btn .count-badge{top:-8px;left:-8px;right:auto;background:var(--blue);box-shadow:0 0 0 2px #fff}
.cart-text{display:flex;flex-direction:column;align-items:flex-start;line-height:1.15}
.cart-text b{font:700 .9rem/1.15 var(--sans)}
.cart-text small{font:500 .75rem/1.15 var(--sans);color:var(--ink-3);white-space:nowrap}
.cart-btn.flash{animation:pop .45s ease}
@keyframes pop{40%{transform:scale(1.06)}}
.burger,.search-toggle{display:none}
.burger{width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;padding:0 12px;border-radius:12px}
.burger span{display:block;height:2px;border-radius:2px;background:#fff}

@media (max-width:1439px){
  .act-new{display:none}
  .header-search button{padding:0 16px}
}
@media (max-width:1199px){
  .info-btn span{display:none}
}
@media (max-width:1023px){
  .logo-type{display:none}
  .catalog-drop{margin-left:4px}
  .catalog-btn span,.catalog-btn .chev{display:none}
  .info-btn span{display:none}
  .act-sale{display:none}
  .act-btn{min-width:52px}
}
@media (max-width:899px){
  .header-bar{min-height:60px;padding:8px 0;gap:6px}
  .header-search,.catalog-drop,.info-drop{display:none}
  .search-toggle,.burger{display:inline-flex}
  .header-actions{margin-left:auto}
  .logo-type{display:flex}
  .logo-type small{display:none}
  .logo-mark{width:38px;height:38px;border-radius:10px}
  .act-label,.cart-text{display:none}
  .act-btn{height:44px;min-width:44px}
  .cart-btn{height:44px;padding:0 12px;margin-left:4px}
  .cart-btn .count-badge{left:auto;right:-6px;top:-6px}
}
@media (max-width:420px){
  .account-link{display:none}
}

/* overlays · search panel · mobile menu (no entrance animation: JS rebuilds this DOM) */
.search-overlay,.menu-overlay,.cart-overlay,.filter-overlay{position:fixed;inset:0;background:var(--overlay)}
.search-overlay{z-index:var(--z-search-overlay)}
.menu-overlay{z-index:var(--z-menu-overlay)}
.cart-overlay{z-index:var(--z-cart-overlay)}
.filter-overlay{z-index:var(--z-filter-overlay)}
.search-panel{position:fixed;top:0;left:0;right:0;z-index:var(--z-search);background:#fff;padding:14px 0;box-shadow:var(--shadow)}
.search-panel-inner{display:flex;gap:8px;align-items:center}
.search-panel input{flex:1;min-width:0;height:50px;border:1px solid var(--rule-strong);border-radius:var(--r-ctl);padding:0 16px;font-size:16px;background:#fff;-webkit-appearance:none;appearance:none}
.search-panel input::placeholder{color:var(--ink-3);opacity:1}
.search-panel .btn{flex:none;padding:0 18px}
.mobile-menu{position:fixed;inset:0;z-index:var(--z-menu);background:#fff;display:flex;flex-direction:column;padding:0 var(--gutter) 24px;overflow:auto;overscroll-behavior:contain}
.mobile-head{display:flex;justify-content:space-between;align-items:center;min-height:64px;border-bottom:1px solid var(--rule)}
.mobile-head span{font:600 .9375rem var(--sans);color:var(--ink-3)}
.mobile-menu nav{display:flex;flex-direction:column;padding-top:8px}
.mobile-menu nav a{display:flex;align-items:center;justify-content:space-between;font:600 1.0625rem/1.2 var(--sans);padding:14px 4px;border-bottom:1px solid var(--rule-sheet)}
.mobile-menu nav a::after{content:"›";font-size:1.5rem;color:var(--ink-3)}
.mobile-menu nav a:hover,.mobile-menu nav a.is-active{color:var(--blue)}
.mobile-group{margin:24px 4px 2px;font:600 .75rem/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.mobile-group:first-child{margin-top:12px}
.mobile-menu nav .mobile-group+a{border-top:0}
.mobile-menu-meta{margin-top:auto;padding:20px;border-radius:var(--r);background:var(--ground);font:400 .875rem/1.6 var(--sans);color:var(--ink-3)}
.mobile-menu-meta a{font:700 1.2rem var(--sans);color:var(--ink)}
.mobile-head button,.cart-head button,.search-close,.lightbox-close,.sidebar-head button{
  width:44px;height:44px;min-width:44px;flex:none;display:grid;place-items:center;padding:0;border-radius:50%;background:var(--ground);
  border:0;font:400 22px/1 var(--sans);color:var(--ink);transition:background-color var(--t-fast)}
.mobile-head button:hover,.cart-head button:hover,.search-close:hover,.lightbox-close:hover,.sidebar-head button:hover{background:var(--ground-2)}

/* ===== FOOTER ===== */
.site-footer{position:relative;background:var(--navy);color:rgba(255,255,255,.8);margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px 20px;padding:64px 0 44px}
.footer-brand{grid-column:1/-1}
@media (min-width:900px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}.footer-brand{grid-column:auto}}
.footer-logo-plate{display:block;width:60px;height:60px;overflow:hidden;background:#fff;border-radius:16px;margin-bottom:20px}
.footer-logo-plate img{width:100%;height:100%;object-fit:contain;transform:scale(1.12);transform-origin:50% 52%}
.footer-tagline{font:700 clamp(1.4rem,2.2vw,1.75rem)/1.2 var(--sans);letter-spacing:-.015em;color:#fff;margin-bottom:10px}
.footer-brand p:last-child{color:rgba(255,255,255,.7);max-width:36ch;font-size:var(--fs-ui)}
.site-footer h3{font:600 .9375rem/1.3 var(--sans);color:#fff;margin-bottom:14px}
.site-footer li{margin:9px 0}
.site-footer a{font-size:var(--fs-ui);color:rgba(255,255,255,.72);transition:color var(--t-fast)}
.site-footer a:hover{color:#fff}
.footer-copy{border-top:1px solid rgba(255,255,255,.12)}
.footer-copy .container{display:flex;align-items:center;flex-wrap:wrap;gap:12px 20px;padding:18px 0 22px;font-size:.8125rem;color:rgba(255,255,255,.55)}
.footer-copy span:last-child{margin-left:auto}

/* ===== PRODUCT CARD + PRICE ===== */
.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (min-width:600px){.product-grid{gap:20px}}
@media (min-width:800px){.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1100px){#home-featured,.related .product-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.product-card{position:relative;display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;
  transition:box-shadow var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t)}
.product-card:hover,.product-card:focus-within{box-shadow:var(--shadow);border-color:transparent;transform:translateY(-3px);z-index:1}
.product-card-media{position:relative;aspect-ratio:1;background:#fff;overflow:hidden}
.product-card-image{display:block;width:100%;height:100%}
.product-card-image:focus-visible{outline-offset:-4px}
.product-card-image img{width:100%;height:100%;object-fit:contain;padding:10%;transition:transform 300ms var(--ease)}
@media (hover:hover){.product-card:hover .product-card-image img{transform:scale(1.05)}}
.product-card.is-unavailable .product-card-image img{opacity:.45;filter:grayscale(1)}
.sale-chip{position:absolute;top:12px;left:12px;background:var(--magenta);color:#fff}
.fav-btn{position:absolute;top:10px;right:10px;width:38px;height:38px;display:grid;place-items:center;color:var(--ink-2);background:rgba(255,255,255,.92);border-radius:50%;box-shadow:var(--shadow-sm);transition:color var(--t-fast),transform var(--t-fast)}
.fav-btn:hover{color:var(--magenta);transform:scale(1.06)}
.fav-btn.active{color:var(--magenta)}
.fav-btn.is-inline{position:static;flex:none;width:46px;height:46px;border:1px solid var(--rule);box-shadow:none;background:#fff}
.fav-btn.is-inline:hover{border-color:var(--magenta)}
.product-card-body{display:flex;flex-direction:column;gap:8px;flex:1;padding:4px 18px 18px}
.product-brand{display:flex;justify-content:space-between;gap:8px;font:500 .8125rem/1.2 var(--sans);color:var(--ink-3);text-transform:none;letter-spacing:0}
.product-brand span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.product-brand span+span{flex:none;color:#9AA4B8}
.product-card h3{font:600 1rem/1.35 var(--sans);letter-spacing:0;min-height:2.7em}
.product-card h3 a:hover{color:var(--blue)}
.spec-band{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;border:0}
.spec-band div{display:flex;align-items:baseline;gap:4px;min-width:0;padding:4px 10px;border:0;border-radius:var(--r-pill);background:var(--ground)}
.spec-band div:first-child{padding-left:10px}
.spec-band dd{margin:0;font:600 .8125rem/1.2 var(--sans);color:var(--ink);white-space:nowrap}
.spec-band dd.is-empty{color:var(--ink-3);font-weight:400}
.spec-band dt{order:2;margin:0;font:400 .75rem/1.2 var(--sans);color:var(--ink-3);white-space:nowrap}
.product-card-footer{margin-top:auto;display:grid;gap:12px;padding-top:6px}
.product-card-prices{display:flex;align-items:baseline;flex-wrap:wrap;gap:2px 10px}
.product-card .price{font-size:var(--fs-price-card)}
.product-card .btn{width:100%;min-height:46px;padding:0 12px;font-size:.9375rem;white-space:normal}
@media (max-width:599px){
  .product-card{border-radius:16px}
  .product-card-body{padding:2px 12px 12px;gap:6px}
  .product-brand span+span{display:none}
  .product-card h3{font-size:.9rem}
  .spec-band{gap:4px}
  .spec-band div{padding:3px 7px}
  .spec-band dt{display:none}
  .product-card .price{font-size:1.15rem}
  .product-card .btn{min-height:42px;font-size:.875rem}
  .sale-chip{top:8px;left:8px}
  .fav-btn{top:6px;right:6px;width:34px;height:34px}
}

.price{font:700 1.5rem/1 var(--sans);letter-spacing:-.015em;font-variant-numeric:tabular-nums lining-nums;white-space:nowrap}
.price-old{font:400 .875rem var(--sans);color:var(--ink-3);text-decoration:line-through 1px;white-space:nowrap}
.product-card-prices:has(.price-old) .price,.price-block:has(.price-old) .price{color:var(--magenta);background:none;padding:0}
.product-stock{display:flex;align-items:center;gap:7px;font:500 .8125rem/1.3 var(--sans);color:var(--ok)}
.product-stock::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none;box-shadow:0 0 0 3px color-mix(in srgb,currentColor 18%,transparent)}
.product-stock.is-ready{color:var(--ready)}
.product-stock.is-out{color:var(--ink-3)}

/* ===== BREADCRUMB + PAGE-INTRO + EMPTY ===== */
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font:400 .875rem/1.3 var(--sans);color:var(--ink-3);margin-bottom:16px}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb [aria-current]{color:var(--ink)}
.breadcrumb span[aria-hidden]{color:var(--rule-strong)}
.page-intro{padding:clamp(20px,3vw,36px) 0 clamp(20px,3vw,32px)}
.page-intro-row{display:flex;justify-content:space-between;align-items:flex-end;gap:16px 40px}
.page-intro h1{max-width:16ch}
.page-intro-note{max-width:40ch;color:var(--ink-2);font-size:var(--fs-ui);padding-bottom:6px}
@media (max-width:979px){.page-intro-row{flex-direction:column;align-items:flex-start}}

.empty-state{padding:32px 0 56px;max-width:540px}
.empty-state h2{font:700 clamp(1.6rem,2.6vw,2.2rem)/1.15 var(--sans);margin-bottom:10px}
.empty-state p{color:var(--ink-2);margin-bottom:20px}
.empty-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.empty-links a{border:1px solid var(--rule);border-radius:var(--r-pill);background:#fff;padding:9px 16px;font:500 var(--fs-small) var(--sans);transition:border-color var(--t-fast),color var(--t-fast)}
.empty-links a:hover{border-color:var(--blue);color:var(--blue)}

/* ===== CART DRAWER (no animation: rebuilt on every change) ===== */
.cart-drawer{position:fixed;z-index:var(--z-cart);top:0;right:0;bottom:0;left:auto;transform:none;width:min(460px,100vw);height:100vh;height:100dvh;max-height:none;
  display:flex;flex-direction:column;background:#fff;color:var(--ink);border:0;border-radius:24px 0 0 24px;box-shadow:var(--shadow-lg);overflow:hidden}
.cart-head{flex:none;display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:22px 24px 16px;border-bottom:1px solid var(--rule)}
.cart-head h2{font:700 1.6rem/1.1 var(--sans)}
.cart-head p{font-size:.875rem;color:var(--ink-3);margin-top:4px}
.cart-body{flex:1 1 auto;min-height:0;overflow:auto;overscroll-behavior:contain;padding:4px 24px 24px}
.cart-list{display:flex;flex-direction:column}
.cart-item{display:grid;grid-template-columns:80px minmax(0,1fr);gap:14px;padding:16px 0;border-bottom:1px solid var(--rule-sheet)}
.cart-item img{width:80px;height:80px;object-fit:contain;background:#fff;border:1px solid var(--rule);padding:6px;border-radius:14px}
.cart-meta{display:flex;flex-direction:column;gap:4px;min-width:0}
.cart-meta>a{font:600 var(--fs-ui)/1.35 var(--sans)}
.cart-meta>a:hover{color:var(--blue)}
.cart-meta .muted{font-size:.8125rem}
.cart-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px}
.cart-row .qty{height:38px}
.cart-row .qty button{width:34px}
.cart-row .price{font-size:var(--fs-price-row)}
.cart-remove{align-self:flex-start;font-size:.8125rem;color:var(--ink-3);margin-top:4px}
.cart-remove:hover{color:var(--magenta)}
.cart-footer{flex:none;padding:18px 24px 24px;background:var(--ground)}
.cart-total{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:14px}
.cart-total span{font-size:.9375rem;color:var(--ink-2)}
.cart-total strong{font-size:var(--fs-price-total)}
.cart-note{font-size:.8125rem;line-height:1.5;color:var(--ink-3);margin:10px 0 0}
.cart-empty,.checkout-success{padding:32px 0}
.cart-empty h3,.checkout-success h3{font:700 1.75rem/1.15 var(--sans);margin:4px 0 10px}
.checkout-success .kicker{background:var(--ok-bg);color:var(--eco);margin-bottom:16px}
.cart-empty p,.checkout-success p{color:var(--ink-2)}
.cart-empty .btn{margin-top:20px}
.checkout-success .price{display:block;margin:16px 0;font-size:2.25rem}
.checkout-success .muted{font-size:.875rem;color:var(--ink-3)}
.success-actions{display:flex;flex-direction:column;gap:8px;margin-top:16px}
.checkout-form{padding-top:20px}
.checkout-form .kicker{margin:0}
.checkout-form h3{font:700 1.4rem/1.2 var(--sans)}
.checkout-form .cart-note{margin:0}
@media (max-width:480px){
  .cart-drawer{width:100vw;border-radius:0}
  .cart-head,.cart-body,.cart-footer{padding-inline:16px}
}

/* ===== TOAST ===== */
.toast-host{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:var(--z-toast);display:flex;flex-direction:column;gap:8px;width:max-content;max-width:calc(100% - 24px)}
.toast{display:flex;align-items:center;gap:10px;background:var(--ink);color:#fff;border-radius:var(--r-pill);padding:12px 20px;font:500 .9rem/1.35 var(--sans);
  box-shadow:var(--shadow-lg);opacity:0;transform:translateY(8px);transition:opacity var(--t),transform var(--t)}
.toast::before{content:"✓";display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ok);font-size:.75rem;font-weight:700}
.toast.show{opacity:1;transform:none}

/* ===== GUIDE (shared: index.html + about.html#guide) ===== */
.guide-grid{display:grid;gap:32px}
.guide-grid>div:first-child{align-self:start}
.guide-grid .hero-lead{margin:16px 0 24px;font-size:1.0625rem}
.guide-grid .hero-lead:last-child{margin-bottom:0}
@media (min-width:900px){
  .guide-grid{grid-template-columns:repeat(12,minmax(0,1fr));column-gap:32px}
  .guide-grid>div:first-child{grid-column:1/span 4;position:sticky;top:calc(var(--sticky-top) + 24px)}
  .guide-steps{grid-column:5/-1}
}
.guide-steps{display:grid;grid-template-columns:1fr;gap:16px;counter-reset:step}
@media (min-width:700px){.guide-steps{grid-template-columns:1fr 1fr}}
.guide-steps li{display:flex;flex-direction:column;gap:20px;padding:26px;background:#fff;border-radius:var(--r);box-shadow:var(--shadow-sm);border:1px solid var(--rule-sheet)}
.guide-steps strong{display:block;font:700 1.2rem/1.25 var(--sans)}
.guide-steps p{color:var(--ink-2);font-size:var(--fs-ui);margin-top:6px}
.g-fig{height:88px;display:flex;align-items:flex-end;gap:16px;font:600 .75rem/1.2 var(--sans);color:var(--blue-dark)}
.g-format .g-fig{position:relative;width:62px;aspect-ratio:1/1.4142;height:auto;display:block}
.g-format i{position:absolute;left:0;bottom:0;border:1.5px solid #B9C8F2;border-radius:4px;background:var(--tint-blue);display:flex;justify-content:flex-end;padding:3px 4px}
.g-format i:nth-child(1){width:100%;height:100%}
.g-format i:nth-child(2){width:70.71%;height:70.71%;background:#DCE5FF}
.g-format i:nth-child(3){width:50%;height:50%;background:var(--blue);border-color:var(--blue);color:#fff}
.g-density .g-fig{flex-direction:column;align-items:stretch;justify-content:flex-end;gap:8px;width:150px}
.g-density i{display:flex;align-items:center;gap:8px}
.g-density i::before{content:"";flex:1;height:var(--lw,2px);border-radius:4px;background:var(--blue)}
.g-density i:nth-child(1){--lw:2px;opacity:.45}
.g-density i:nth-child(2){--lw:3px;opacity:.6}
.g-density i:nth-child(3){--lw:4px;opacity:.8}
.g-density i:nth-child(4){--lw:7px}
.g-count i{display:flex;flex-direction:column;gap:6px}
.g-count i::before{content:"";width:56px;height:14px;border-radius:4px;background:repeating-linear-gradient(#B9C8F2 0 2px,var(--tint-blue) 2px 4px)}
.g-count i:nth-child(2)::before{height:60px}
.g-type i{display:flex;flex-direction:column;gap:6px}
.g-type i::before{content:"";width:42px;aspect-ratio:1/1.4142;border:1.5px solid #B9C8F2;border-radius:4px;background:#fff}
.g-type i:nth-child(2)::before{background:#EFE6D6;border-color:#DCCBAE}