/* Kníhkupectvo Lampa — Celestial style: gold on midnight navy, pastel mint/peach/lilac accents */

:root{
  --navy-950:#10122a;
  --navy-900:#171a3a;
  --navy-800:#20244a;
  --navy-700:#2b3060;
  --gold:#e3b765;
  --gold-soft:#f1d49a;
  --gold-deep:#8a6412;
  --cream:#f5f0e6;
  --mint:#bfe6d4;
  --peach:#f0c6a6;
  --lilac:#cdb9e8;
  --ink:#1c1b1f;
  --paper:#fbf7ef;
  --paper-dim:#efe8d9;
  --radius-m:14px;
  --radius-l:26px;
  --shadow-soft:0 18px 40px -20px rgba(16,18,42,.45);
  --ease:cubic-bezier(.22,1,.36,1);
  --font-display:"Iowan Old Style","Palatino Linotype",Georgia,"Times New Roman",serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html,body{overflow-x:clip;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;line-height:1.1;font-weight:600;}
p{margin:0 0 1em;}
button{font:inherit;cursor:pointer;}
.container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:clamp(1.25rem,4vw,2.5rem);}

:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:4px;}

.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;
}
.hp-field{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;opacity:0;pointer-events:none;}

.skip-link{
  position:absolute;left:1rem;top:-3rem;
  background:var(--gold);color:var(--navy-950);
  padding:.6rem 1rem;border-radius:8px;z-index:200;
  transition:top .25s var(--ease);
}
.skip-link:focus{top:1rem;}

/* ---------- Icon sprite ---------- */
.icon-sprite{position:absolute;width:0;height:0;overflow:hidden;}
.icon{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}

/* ---------- Grain overlay ---------- */
.grain-overlay{
  position:fixed;inset:0;width:100vw;height:100vh;
  pointer-events:none;z-index:999;opacity:.05;mix-blend-mode:overlay;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(16,18,42,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(227,183,101,.2);
  color:var(--cream);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:.85rem;gap:1rem;
}
.logo{display:flex;align-items:center;flex-shrink:0;}
.logo svg{width:clamp(150px,22vw,210px);height:auto;display:block;}
.main-nav ul{display:flex;gap:clamp(1rem,2vw,1.8rem);}
.main-nav a{
  font-size:.96rem;letter-spacing:.02em;position:relative;padding:.3rem 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:.9rem;}
.cart-link{position:relative;display:flex;align-items:center;color:var(--cream);}
.cart-count{
  position:absolute;top:-8px;right:-10px;min-width:18px;height:18px;padding:0 4px;
  border-radius:999px;background:var(--gold);color:var(--navy-950);
  font-size:.65rem;font-weight:700;display:flex;align-items:center;justify-content:center;
  transition:transform .25s var(--ease);
}
.cart-count.bump{animation:bump .35s var(--ease);}
@keyframes bump{0%{transform:scale(1);}40%{transform:scale(1.5);}100%{transform:scale(1);}}
.menu-toggle{
  display:none;background:none;border:0;color:var(--cream);padding:.3rem;
}
.menu-toggle .icon-close{display:none;}
.menu-toggle[aria-expanded="true"] .icon-menu{display:none;}
.menu-toggle[aria-expanded="true"] .icon-close{display:block;}

@media (max-width:860px){
  .menu-toggle{display:block;}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--navy-950);
    padding:5.5rem 2rem 2rem;
    transform:translateX(100%);
    visibility:hidden;
    transition:transform .35s var(--ease),visibility .35s var(--ease);
    border-left:1px solid rgba(227,183,101,.25);
  }
  .main-nav.is-open{transform:translateX(0);visibility:visible;}
  .main-nav ul{flex-direction:column;gap:1.4rem;font-size:1.1rem;}
}

/* ---------- Buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.85rem 1.7rem;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1.5px solid var(--gold);color:var(--navy-950);background:var(--gold);
  overflow:hidden;isolation:isolate;min-height:44px;
  transition:color .35s var(--ease);
}
.btn::before{
  content:"";position:absolute;inset:0;left:-100%;width:100%;
  background:var(--navy-950);z-index:-1;
  transition:left .35s var(--ease);
}
.btn:hover::before,.btn:focus-visible::before{left:0;}
.btn:hover,.btn:focus-visible{color:var(--gold-soft);}
.btn-ghost{
  background:transparent;color:var(--cream);border-color:rgba(245,240,230,.5);
}
.btn-ghost::before{background:var(--gold);}
.btn-ghost:hover,.btn-ghost:focus-visible{color:var(--navy-950);}
.btn-outline{
  background:transparent;color:var(--navy-950);border-color:var(--navy-950);
}
.btn-outline::before{background:var(--navy-950);}
.btn-outline:hover,.btn-outline:focus-visible{color:var(--cream);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.6;cursor:not-allowed;}

/* ---------- Reveal ---------- */
.reveal{opacity:1;}
.reveal.js-hidden{
  opacity:0;transform:translateY(28px);
  clip-path:inset(0 0 12% 0);
}
.reveal.in-view{
  opacity:1;transform:none;clip-path:inset(0 0 0 0);
  transition:opacity .7s var(--ease),transform .7s var(--ease),clip-path .7s var(--ease);
}
.reveal-stagger.in-view > *{transition-delay:calc(var(--i,0) * 80ms);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal.js-hidden{opacity:1;transform:none;clip-path:none;}
}

/* ---------- Hero ---------- */
.hero{
  background:radial-gradient(120% 160% at 15% -10%,var(--navy-800),var(--navy-950) 60%);
  color:var(--cream);position:relative;overflow:hidden;
  padding-block:clamp(3rem,8vw,5.5rem);
}
.hero-stars{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;}
.hero-stars circle{animation:twinkle 4.5s ease-in-out infinite;}
@keyframes twinkle{0%,100%{opacity:.25;}50%{opacity:1;}}
.hero-inner{
  position:relative;z-index:2;display:grid;gap:clamp(2rem,5vw,3.5rem);
  grid-template-columns:1.1fr 1fr;align-items:center;
}
@media (max-width:900px){.hero-inner{grid-template-columns:1fr;}}
.hero-eyebrow{
  color:var(--gold-soft);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;
}
.hero-title{
  font-size:clamp(2.3rem,5.4vw,4rem);color:var(--cream);margin-top:.4rem;
}
.hero-title .word{display:inline-block;overflow:hidden;}
.hero-title .word span{
  display:inline-block;transform:translateY(110%);opacity:0;
  animation:riseWord .7s var(--ease) forwards;
}
@keyframes riseWord{to{transform:translateY(0);opacity:1;}}
.hero-lede{font-size:1.08rem;color:rgba(245,240,230,.85);max-width:40ch;}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:1.6rem;}

.hero-tabs{display:flex;gap:.5rem;margin-top:2rem;flex-wrap:wrap;}
.hero-tab{
  padding:.55rem 1.1rem;border-radius:999px;border:1px solid rgba(245,240,230,.3);
  background:transparent;color:rgba(245,240,230,.75);font-size:.88rem;font-weight:600;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.hero-tab[aria-selected="true"]{background:var(--gold);color:var(--navy-950);border-color:var(--gold);}
.hero-mood{display:none;}
.hero-mood.is-active{display:block;}

.hero-art{position:relative;}
.hero-photo{
  position:absolute;inset:6%;width:88%;height:88%;object-fit:cover;z-index:0;
  border-radius:var(--radius-l);opacity:.6;
  filter:grayscale(1) sepia(.35) hue-rotate(185deg) saturate(1.4) brightness(.55) contrast(1.15);
}
.hero-art svg{position:relative;z-index:1;width:100%;height:auto;display:block;}

/* ---------- Sections ---------- */
.section{padding-block:clamp(3rem,7vw,5.5rem);}
.section-navy{background:var(--navy-950);color:var(--cream);}
.section-mint{background:linear-gradient(180deg,var(--mint) 0%,rgba(191,230,212,.35) 100%);}
.section-head{max-width:640px;margin-bottom:clamp(1.8rem,4vw,3rem);}
.section-head p{color:var(--ink);opacity:.75;}
.section-navy .section-head p{color:var(--cream);opacity:.8;}
.eyebrow{
  text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:700;color:var(--gold-deep);
}
.section-navy .eyebrow{color:var(--gold);}
.divider{display:block;width:100%;height:auto;margin-block:clamp(1.5rem,4vw,3rem);color:var(--gold);opacity:.6;}

/* ---------- Product strip / grid ---------- */
.product-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1.6rem;
}
.product-strip{
  display:flex;gap:1.3rem;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:.6rem;
  margin:0 calc(-1 * clamp(1.25rem,4vw,2.5rem));padding-inline:clamp(1.25rem,4vw,2.5rem);
}
.product-strip .product-card{min-width:220px;scroll-snap-align:start;}
@media (min-width:860px){
  .product-strip{overflow-x:visible;display:grid;grid-template-columns:repeat(4,1fr);margin-inline:0;padding-inline:0;}
}
.product-card{
  background:var(--paper);border-radius:var(--radius-m);overflow:hidden;
  box-shadow:var(--shadow-soft);display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.product-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -22px rgba(16,18,42,.5);}
.product-card .thumb{aspect-ratio:4/5;overflow:hidden;position:relative;background:var(--navy-800);}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.product-card:hover .thumb img{transform:scale(1.06);}
.product-card .tag{
  position:absolute;top:.7rem;left:.7rem;background:rgba(16,18,42,.85);color:var(--gold-soft);
  font-size:.7rem;padding:.3rem .6rem;border-radius:999px;letter-spacing:.04em;
}
.product-card .body{padding:1.1rem 1.2rem 1.4rem;display:flex;flex-direction:column;gap:.4rem;flex:1;}
.product-card h3{font-size:1.05rem;margin:0;}
.product-card .price{color:var(--navy-900);font-weight:700;font-family:var(--font-mono);margin-top:auto;}
.product-card .excerpt{font-size:.88rem;opacity:.75;}
.product-card .card-link{position:absolute;inset:0;z-index:3;}
.product-card .body .btn{align-self:flex-start;margin-top:.3rem;}

.filter-bar{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:1.8rem;}
.filter-btn{
  padding:.5rem 1.1rem;border-radius:999px;border:1.5px solid var(--navy-900);
  background:transparent;color:var(--navy-900);font-weight:600;font-size:.85rem;
  transition:background .3s var(--ease),color .3s var(--ease);
}
.filter-btn[aria-pressed="true"]{background:var(--navy-900);color:var(--cream);}

/* ---------- Feature: reading calculator ---------- */
.lamp-feature{
  background:var(--navy-950);color:var(--cream);border-radius:var(--radius-l);
  padding:clamp(1.8rem,5vw,3.2rem);position:relative;overflow:hidden;
  display:grid;gap:clamp(1.8rem,4vw,3rem);grid-template-columns:1fr 1fr;align-items:start;
}
@media (max-width:860px){.lamp-feature{grid-template-columns:1fr;}}
.lamp-feature .glow{
  position:absolute;top:-30%;right:-15%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(227,183,101,.35),transparent 70%);pointer-events:none;
}
.lamp-form{display:grid;gap:1rem;position:relative;z-index:1;}
.lamp-form label{font-size:.82rem;color:var(--gold-soft);display:block;margin-bottom:.35rem;font-weight:600;}
.lamp-form .field-row{display:grid;gap:1rem;grid-template-columns:1fr 1fr;}
@media (max-width:480px){.lamp-form .field-row{grid-template-columns:1fr;}}
.lamp-result{
  background:rgba(245,240,230,.07);border:1px solid rgba(227,183,101,.3);border-radius:var(--radius-m);
  padding:1.3rem 1.4rem;position:relative;z-index:1;min-height:3.5rem;
}
.lamp-result .headline{color:var(--gold-soft);font-weight:700;font-size:1.1rem;display:block;margin-bottom:.4rem;}
.lamp-picks{display:grid;gap:.8rem;margin-top:1rem;}
.lamp-pick{
  display:flex;gap:.8rem;align-items:center;background:rgba(245,240,230,.05);
  border-radius:10px;padding:.6rem .8rem;
}
.lamp-pick img{width:46px;height:60px;object-fit:cover;border-radius:4px;flex-shrink:0;}
.lamp-pick .meta{font-size:.85rem;}
.lamp-pick .meta strong{display:block;font-size:.92rem;}

/* ---------- Form styling ---------- */
.form-grid{display:grid;gap:1.1rem;max-width:560px;}
.field{display:flex;flex-direction:column;gap:.4rem;}
.field label{font-weight:600;font-size:.9rem;}
.field input,.field textarea,.field select{
  font:inherit;padding:.75rem .9rem;border:1.5px solid rgba(28,27,31,.2);border-radius:10px;
  background:var(--paper);accent-color:var(--navy-900);min-height:44px;
}
.section-navy .field input,.section-navy .field textarea,.section-navy .field select{
  background:rgba(245,240,230,.07);border-color:rgba(245,240,230,.25);color:var(--cream);
}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--gold);}
.field-error{color:#b3372c;font-size:.82rem;}
.section-navy .field-error{color:var(--peach);}
.form-message{min-height:1.4em;font-size:.9rem;font-weight:600;}
.form-message.success{color:#2f7a52;}
.form-message.error{color:#b3372c;}
.section-navy .form-message.success{color:var(--mint);}
.section-navy .form-message.error{color:var(--peach);}

/* ---------- Cards: about/values/badge ---------- */
.value-grid{display:grid;gap:1.4rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.value-card{background:var(--paper);border-radius:var(--radius-m);padding:1.5rem;box-shadow:var(--shadow-soft);}
.value-card h3{font-size:1.1rem;}
.badge-seal{width:110px;height:110px;flex-shrink:0;}

.split{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:1fr 1fr;align-items:center;}
@media (max-width:860px){.split{grid-template-columns:1fr;}}
.split-media{position:relative;}
.split-media img{border-radius:var(--radius-l);width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;}
.split-media .ornament{position:absolute;bottom:-1.6rem;left:-1.6rem;width:110px;height:auto;color:var(--gold);}

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed;left:1rem;right:1rem;bottom:1rem;z-index:300;
  background:var(--navy-950);color:var(--cream);border-radius:var(--radius-m);
  padding:1.3rem 1.5rem;box-shadow:var(--shadow-soft);
  display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;
  max-width:720px;margin-inline:auto;
  transform:translateY(130%);transition:transform .4s var(--ease);
}
.cookie-banner.is-visible{transform:translateY(0);}
.cookie-banner p{margin:0;font-size:.9rem;max-width:48ch;}
.cookie-banner a{text-decoration:underline;}
.cookie-actions{display:flex;gap:.7rem;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-950);color:rgba(245,240,230,.85);padding-block:clamp(2.5rem,5vw,4rem) 1.5rem;}
.footer-grid{display:grid;gap:2.2rem;grid-template-columns:1.3fr 1fr 1fr 1.3fr;}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:540px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand svg{width:150px;height:auto;margin-bottom:.8rem;}
.footer-brand p{font-size:.88rem;opacity:.75;max-width:28ch;}
.footer-links h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--gold-soft);margin-bottom:.9rem;}
.footer-links li{margin-bottom:.55rem;font-size:.9rem;}
.footer-links a:hover{color:var(--gold-soft);}
.footer-newsletter h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--gold-soft);margin-bottom:.6rem;}
.footer-newsletter p{font-size:.86rem;opacity:.75;}
.newsletter-form{display:flex;gap:.5rem;flex-wrap:wrap;}
.newsletter-form input[type=email]{
  flex:1;min-width:140px;padding:.7rem .9rem;border-radius:999px;border:1.5px solid rgba(245,240,230,.3);
  background:rgba(245,240,230,.07);color:var(--cream);min-height:44px;
}
.newsletter-form button{
  padding:.7rem 1.3rem;border-radius:999px;border:0;background:var(--gold);color:var(--navy-950);font-weight:700;min-height:44px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  margin-top:2.2rem;padding-top:1.5rem;border-top:1px solid rgba(245,240,230,.15);font-size:.82rem;opacity:.75;
}

/* ---------- Misc page bits ---------- */
.breadcrumb{font-size:.85rem;opacity:.65;margin-bottom:1.2rem;}
.breadcrumb a:hover{text-decoration:underline;}
.legal-page h2{margin-top:1.8rem;font-size:1.25rem;}
.legal-page p,.legal-page li{opacity:.85;}
.legal-page ul{list-style:disc;padding-left:1.3rem;margin-bottom:1em;}

.cart-table{width:100%;border-collapse:collapse;margin-bottom:1.5rem;}
.cart-table th,.cart-table td{padding:.8rem .5rem;border-bottom:1px solid rgba(28,27,31,.12);text-align:left;vertical-align:middle;}
.cart-table img{width:52px;height:68px;object-fit:cover;border-radius:6px;}
.cart-row-main{display:flex;align-items:center;gap:.8rem;}
.qty-input{width:60px;padding:.4rem;border-radius:8px;border:1.5px solid rgba(28,27,31,.2);min-height:40px;}
.remove-btn{background:none;border:0;color:#b3372c;text-decoration:underline;font-size:.85rem;padding:.3rem;}
.cart-empty{padding:2.5rem 0;text-align:center;opacity:.7;}
.cart-summary{max-width:360px;margin-left:auto;display:grid;gap:.5rem;}
.cart-summary .total{font-size:1.2rem;font-weight:700;display:flex;justify-content:space-between;border-top:1px solid rgba(28,27,31,.15);padding-top:.6rem;margin-top:.4rem;}

.product-detail{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:.9fr 1.1fr;}
@media (max-width:860px){.product-detail{grid-template-columns:1fr;}}
.product-detail .thumb{border-radius:var(--radius-l);overflow:hidden;aspect-ratio:4/5;background:var(--navy-800);}
.product-detail .thumb img{width:100%;height:100%;object-fit:cover;}
.product-detail .price{font-family:var(--font-mono);font-size:1.6rem;font-weight:700;color:var(--navy-900);}
.qty-control{display:flex;align-items:center;gap:.7rem;margin:1.2rem 0;}
.qty-control button{
  width:40px;height:40px;border-radius:999px;border:1.5px solid var(--navy-900);background:transparent;font-size:1.1rem;
}
.qty-control input{width:50px;text-align:center;border:1.5px solid rgba(28,27,31,.2);border-radius:8px;min-height:40px;}

.faq-item{border-bottom:1px solid rgba(28,27,31,.15);padding-block:1rem;}
.faq-item summary{cursor:pointer;font-weight:600;font-size:1.02rem;display:flex;justify-content:space-between;gap:1rem;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--gold);transition:transform .25s var(--ease);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{margin-top:.7rem;opacity:.8;}

.error-page{min-height:60vh;display:flex;align-items:center;}
.error-page .container{text-align:center;}
.error-page svg{width:160px;height:auto;margin-inline:auto;color:var(--gold);}

.stars-pattern{position:absolute;inset:0;width:100%;height:100%;opacity:.5;pointer-events:none;}