/* Knihkupectvo Zornička — Vaporwave sunset design system */
:root{
  --sea-deep:#16302c;
  --sea:#1c3b36;
  --sea-light:#2a5349;
  --sand:#f2b880;
  --sand-light:#f8d9ac;
  --driftwood:#c08a5e;
  --pink:#ff6fae;
  --cyan:#5fe8d8;
  --cream:#fbf3e6;
  --ink:#1a1612;
  --radius:16px;
  --shadow:0 18px 40px -16px rgba(0,0,0,.35);
  --font-display:"Georgia","Iowan Old Style","Times New Roman",serif;
  --font-body:"Avenir Next","Segoe UI",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html,body{overflow-x:clip}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--font-body);line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
h1,h2,h3{font-family:var(--font-display);margin:0 0 .5em;line-height:1.1}
h1{font-size:clamp(2.6rem,6vw,5rem)}
h2{font-size:clamp(1.8rem,4vw,2.8rem)}
p{margin:0 0 1em}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);clip-path:inset(0 0 12% 0);transition:opacity .7s ease,transform .7s ease,clip-path .7s ease}
.reveal.in-view{opacity:1;transform:none;clip-path:inset(0 0 0 0)}
.reveal--stagger > *{transition-delay:calc(var(--i,0) * 90ms)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(27,59,54,.92);backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,.08)}
.site-header__inner{max-width:1240px;margin:0 auto;padding:.8rem 1.2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{display:flex;align-items:center;gap:.6rem;color:var(--sand-light)}
.logo__mark{width:40px;height:40px;flex:none}
.logo__word{font-family:var(--font-display);font-size:1.4rem;letter-spacing:.02em;color:var(--sand-light)}
.logo__word--footer{font-size:1.6rem;display:block;margin-bottom:.4rem;color:var(--sand-light)}
.nav-toggle{display:none;background:none;border:0;color:var(--sand-light);min-width:44px;min-height:44px}
.site-nav{display:flex;align-items:center;gap:1.4rem}
.site-nav a{color:var(--cream);opacity:.85;font-size:.95rem;position:relative;padding:.3rem 0}
.site-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--pink);transition:width .25s ease}
.site-nav a:hover::after,.site-nav a.is-active::after{width:100%}
.site-nav a.is-active{opacity:1}
.nav-cart{display:flex;align-items:center;gap:.4rem;background:rgba(255,255,255,.08);padding:.4rem .8rem;border-radius:999px}
.cart-count{background:var(--pink);color:var(--ink);font-weight:700;border-radius:999px;padding:.05rem .5rem;font-size:.8rem}
.nav-cart.bump .cart-count{animation:bump .4s ease}
@keyframes bump{0%{transform:scale(1)}40%{transform:scale(1.4)}100%{transform:scale(1)}}

@media (max-width:860px){
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .site-nav{position:fixed;inset:0 0 0 auto;width:min(320px,80vw);flex-direction:column;align-items:flex-start;padding:5.5rem 1.6rem 2rem;background:var(--sea-deep);
    transform:translateX(100%);visibility:hidden;transition:transform .35s ease,visibility .35s ease;gap:1.2rem}
  .site-nav.is-open{transform:translateX(0);visibility:visible}
}

/* hero / generic sections */
.section{max-width:1240px;margin:0 auto;padding:4rem 1.2rem}
.hero{position:relative;overflow:hidden;background:
  radial-gradient(circle at 50% 120%, var(--sand) 0%, var(--sand) 18%, transparent 55%),
  linear-gradient(180deg,var(--sea-deep),var(--sea) 60%,var(--sea-light));
  color:var(--cream);padding:6rem 1.2rem 5rem}
.hero__inner{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:2rem;align-items:center;position:relative;z-index:2}
.hero__word{display:inline-block;opacity:0;transform:translateY(40px);animation:riseWord .7s ease forwards}
.hero__lede{max-width:40ch;font-size:1.1rem;color:var(--sand-light)}
@keyframes riseWord{to{opacity:1;transform:none}}
.hero__art{position:relative;aspect-ratio:1/1;display:grid;place-items:center}
.hero__grid{position:absolute;inset:0;z-index:0;opacity:.5}
.sun-disc{position:relative;z-index:1}
@media (max-width:860px){.hero__inner{grid-template-columns:1fr}}

/* page hero for inner pages */
.page-hero{background:linear-gradient(160deg,var(--sea-deep),var(--sea));color:var(--cream);padding:4.5rem 1.2rem 3rem;text-align:left}
.page-hero__inner{max-width:1000px;margin:0 auto}
.page-hero p{color:var(--sand-light);max-width:60ch}

/* breadcrumbs */
.breadcrumbs{max-width:1240px;margin:0 auto;padding:1rem 1.2rem;font-size:.85rem;color:var(--driftwood)}
.breadcrumbs a{color:var(--sea);text-decoration:underline}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;justify-content:center;min-height:44px;padding:.7rem 1.6rem;border-radius:999px;border:2px solid transparent;font-family:var(--font-body);font-weight:700;font-size:.95rem;cursor:pointer;transition:transform .2s ease}
.btn--sweep{position:relative;background:var(--pink);color:var(--ink);overflow:hidden;border-color:var(--pink)}
.btn--sweep::before{content:"";position:absolute;inset:0;left:-100%;width:100%;background:var(--cyan);transition:left .35s ease;z-index:0}
.btn--sweep span,.btn--sweep{position:relative}
.btn--sweep:hover::before{left:0}
.btn--sweep:hover{transform:translateY(-2px)}
.btn--outline{background:transparent;border-color:var(--sea);color:var(--sea)}
.btn--outline:hover{background:var(--sea);color:var(--cream)}
.btn--ghost-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn--ghost-dark:hover{background:rgba(255,255,255,.12)}
.btn--full{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* cards / products */
.grid{display:grid;gap:1.6rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid--3,.grid--2{grid-template-columns:1fr}}

.product-strip{display:flex;gap:1.2rem;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:1rem}
.product-strip .product-card{min-width:240px;scroll-snap-align:start}

.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}
.product-card:hover{transform:translateY(-6px)}
.product-card__media{aspect-ratio:4/3;overflow:hidden}
.product-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.product-card:hover .product-card__media img{transform:scale(1.07)}
.product-card__body{padding:1.1rem 1.2rem 1.4rem}
.product-card__author{color:var(--driftwood);font-size:.85rem;margin-bottom:.3rem}
.product-card__price{font-weight:700;color:var(--sea);font-size:1.1rem}

/* product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem;align-items:start}
.product-detail__media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.product-detail__price{font-size:1.6rem;color:var(--sea);font-weight:700}
@media (max-width:760px){.product-detail{grid-template-columns:1fr}}

/* notices */
.notice{border-radius:var(--radius);padding:1rem 1.3rem;background:var(--sand-light);border:1px solid var(--driftwood);margin:1.2rem 0}
.notice--info{background:#e4f6f2;border-color:var(--cyan)}
.notice--error{background:#ffe6ec;border-color:#e0538a}

/* forms */
.form-grid{display:grid;gap:1.1rem;grid-template-columns:repeat(2,1fr)}
.form-grid .field--full{grid-column:1/-1}
@media (max-width:620px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-weight:600;font-size:.9rem}
.field input,.field select,.field textarea{min-height:44px;padding:.6rem .8rem;border:1.5px solid var(--driftwood);border-radius:10px;font-family:var(--font-body);font-size:1rem;accent-color:var(--pink);background:#fff}
.field input:focus,.field select:focus,.field textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
.field-error{color:#c22d63;font-size:.85rem}
.hp-field{position:absolute !important;left:-9999px;width:1px;height:1px;opacity:0}
.form-msg{min-height:1.2em;font-size:.9rem}
.form-msg--ok{color:var(--sea)}
.form-msg--error{color:#c22d63}

/* legal / prose */
.prose{max-width:68ch;margin:0 auto}
.prose h2{margin-top:2rem}
.prose ul,.prose ol{padding-left:1.3rem}
.legal-toc{background:#fff;border-radius:var(--radius);padding:1.2rem 1.4rem;max-width:68ch;margin:0 auto 2rem;box-shadow:var(--shadow)}
.legal-toc a{color:var(--sea);text-decoration:underline}

/* faq */
.faq{max-width:70ch;margin:0 auto;display:flex;flex-direction:column;gap:.8rem}
.faq-item{background:#fff;border-radius:12px;padding:.3rem 1.2rem;box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;font-weight:700;padding:.9rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--pink)}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding-bottom:1rem;margin:0}

/* cart */
.cart-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.cart-table th,.cart-table td{padding:.9rem 1rem;text-align:left;border-bottom:1px solid #eee}
.cart-table img{width:56px;height:56px;object-fit:cover;border-radius:8px}
.cart-summary{background:#fff;border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow);max-width:360px;margin-left:auto}
.cart-summary__total{display:flex;justify-content:space-between;font-weight:700;font-size:1.2rem;margin:1rem 0}

/* contact */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem}
@media (max-width:760px){.contact-layout{grid-template-columns:1fr}}
.contact-info{display:flex;flex-direction:column;gap:1.2rem}
.contact-info__item{display:flex;gap:.8rem;align-items:flex-start}
.contact-info__item svg{flex:none;color:var(--pink)}

/* icon-row for delivery/returns style pages */
.icon-row{display:flex;gap:.8rem;align-items:flex-start}
.icon-row svg{flex:none;color:var(--pink)}

/* footer */
.site-footer{background:var(--sea-deep);color:var(--sand-light);position:relative}
.divider{width:100%;height:30px;display:block}
.site-footer__inner{max-width:1240px;margin:0 auto;padding:1rem 1.2rem 2rem;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2rem}
@media (max-width:860px){.site-footer__inner{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.site-footer__inner{grid-template-columns:1fr}}
.footer-col a{display:block;color:var(--cream);opacity:.85;padding:.25rem 0}
.footer-col a:hover{opacity:1;text-decoration:underline}
.footer-links strong{color:var(--sand-light)}
.newsletter-form .field{flex-direction:row;gap:.5rem;margin-top:.5rem}
.newsletter-form input{flex:1}
.footer-bottom{text-align:center;padding:1rem;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem;opacity:.8}

/* cookie banner */
.cookie-banner{position:fixed;left:1rem;right:1rem;bottom:1rem;z-index:100;background:var(--sea-deep);color:#fff;border-radius:var(--radius);padding:1.1rem 1.3rem;box-shadow:var(--shadow);display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;max-width:900px;margin:0 auto}
.cookie-banner__actions{display:flex;gap:.6rem}

/* utility */
.mt-0{margin-top:0}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}
.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap-1{gap:1rem}.gap-2{gap:2rem}
.text-center{text-align:center}
.container{max-width:1240px;margin:0 auto;padding:0 1.2rem}
.badge{display:inline-flex;align-items:center;gap:.3rem;background:var(--sand-light);color:var(--ink);padding:.3rem .8rem;border-radius:999px;font-size:.8rem;font-weight:700}

/* 404 */
.error-page{text-align:center;padding:6rem 1.2rem}

/* signature feature */
.oracle{background:linear-gradient(160deg,var(--sea),var(--sea-light));color:var(--cream);border-radius:28px;padding:2.6rem;position:relative;overflow:hidden}
.oracle__result{background:rgba(255,255,255,.08);border-radius:16px;padding:1.4rem;margin-top:1.2rem;min-height:60px}
.oracle__form{display:flex;flex-wrap:wrap;gap:.8rem}
.oracle select{min-height:44px;border-radius:10px;border:1.5px solid var(--driftwood);padding:.5rem .8rem;background:#fff}

/* COMPONENTS: .class - what it is
.site-header - sticky top navigation bar
.logo / .logo__mark / .logo__word - brand logo lockup (svg mark + wordmark)
.nav-toggle - mobile hamburger button
.site-nav - primary nav, becomes off-canvas drawer on mobile (.is-open)
.nav-cart - cart link with count badge, bumps via .bump
.cart-count - numeric badge showing cart quantity
.reveal / .reveal--stagger / .in-view - scroll reveal animation hooks
.hero / .hero__inner / .hero__word / .hero__lede / .hero__art / .hero__grid - home hero composition
.page-hero / .page-hero__inner - inner page hero banner
.breadcrumbs - small breadcrumb trail nav
.btn / .btn--sweep / .btn--outline / .btn--ghost-dark / .btn--full - button variants
.grid / .grid--3 / .grid--2 - responsive card grids
.product-strip - horizontal scroll-snap product carousel (mobile)
.product-card / .product-card__media / .product-card__body / .product-card__author / .product-card__price - catalog card
.product-detail / .product-detail__media / .product-detail__price - single product layout
.notice / .notice--info / .notice--error - callout banner box
.form-grid / .field / .field--full / .field-error - form layout and input wrapper
.hp-field - visually hidden honeypot input
.form-msg / .form-msg--ok / .form-msg--error - form feedback message
.prose - readable measure container for long legal text
.legal-toc - table of contents box for legal pages
.faq / .faq-item - FAQ accordion (details/summary)
.cart-table / .cart-summary / .cart-summary__total - cart/checkout tables
.contact-layout / .contact-info / .contact-info__item - contact page split layout
.icon-row - icon + text row (delivery/returns steps)
.site-footer / .site-footer__inner / .footer-col / .footer-links / .footer-bottom - site footer
.newsletter-form - footer newsletter signup form
.cookie-banner / .cookie-banner__actions - cookie consent banner
.badge - small pill label
.error-page - 404 page wrapper
.oracle / .oracle__form / .oracle__result - "Veštec kníh" signature feature box
.container / .section - page width wrappers
spacing/utility: .mt-0..3 .mb-0..2 .flex .flex-wrap .items-center .gap-1 .gap-2 .text-center
*/