/* ============================================================
   METALTEC-1 — style.css
   Tmavá industriální identita · zlatá + červená akcent
   (sjednoceno s původním landing designem + e-shop komponenty)
   ============================================================ */
:root {
  --bg:        #0b0b0d;
  --bg-2:      #111114;
  --bg-3:      #16161b;
  --panel:     #14141a;
  --gold:      #f5b301;
  --gold-2:    #ffc62b;
  --red:       #e8392b;
  --red-dark:  #c92b1f;
  --green:     #35d07f;

  --text:      #f4f4f5;
  --muted:     #a2a2ab;
  --muted-2:   #74747e;
  --line:      #26262e;

  --font-display: 'Oswald', 'Inter', system-ui, sans-serif;
  --font-hero:    'Saira Condensed', 'Oswald', 'Inter', system-ui, sans-serif;
  --font-sans:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;
  --line-height:  1.65;

  --space-sm: 0.5rem; --space-md: 1rem; --space-lg: 2rem; --space-xl: 4rem; --space-2xl: 6rem;
  --radius: 10px; --radius-sm: 6px; --max-width: 1240px; --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
body {
  font-family: var(--font-sans); background: var(--bg); color: var(--text);
  line-height: var(--line-height); -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img, picture { max-width: 100%; display: block; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--gold); color: #000; }

/* ---------- A11y ---------- */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 1000; background: var(--gold); color: #000; padding: .75rem 1.25rem; font-weight: 700; border-radius: 0 0 var(--radius) 0; }
.skip-link:focus { left: 0; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 3px; }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 860px; }
.center { text-align: center; }
.hidden { display: none !important; }

/* ---------- Typografie ---------- */
.display { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: .5px; text-transform: uppercase; font-size: clamp(2.6rem, 7vw, 5.2rem); }
/* Oswald je lehčí než původní Anton — sjednotí váhu 700 na všech display prvcích */
.brand-mark, .brand-name, .stat dd, .tech-no, .product-name, .product-price,
.case-overlay h3, .section-title, .product-info h1, .product-price-lg,
.prose h1, .prose h2, .how-steps span, .calc-step, .calc-volume-out input,
.calc-dose-num, .calc-pack-qty, .cart-totals .big, .checkout-form legend,
.summary-grid h2, .summary-totals .big, .pay-info h2, .error-page h1,
.admin-login h1, .admin-logo, .admin-main h1, .card-value { font-weight: 700; }
.display--lg { font-size: clamp(2.2rem, 5.5vw, 4.2rem); }
.accent { color: var(--gold); }
.kicker { font-family: var(--font-mono); font-size: .8rem; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); margin-bottom: 1.1rem; }
.kicker span { color: var(--muted-2); margin-right: .4rem; }
.kicker.center { display: block; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 44ch; margin-top: 1.4rem; }
.section-lead { font-size: 1.08rem; color: var(--muted); max-width: 58ch; margin-top: 1.2rem; }
.mono-tag { display: inline-block; font-family: var(--font-mono); font-size: .72rem; letter-spacing: 1px; color: var(--muted-2); text-transform: uppercase; }

/* ---------- Tlačítka ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; font-family: var(--font-sans); font-weight: 700; font-size: .95rem; letter-spacing: .3px; padding: .85rem 1.5rem; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition); text-transform: uppercase; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-dark); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--line); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-order { background: var(--red); color: #fff; padding: .6rem 1.2rem; font-size: .85rem; }
.btn-order:hover { background: var(--red-dark); }
.btn-card { background: var(--gold); color: #111; padding: .65rem 1.1rem; font-size: .82rem; }
.btn-card:hover { background: var(--gold-2); }
.btn-dark { background: #0b0b0d; color: var(--gold); padding: 1rem 1.8rem; font-size: 1rem; border-color: #000; }
.btn-dark:hover { background: #000; }
.btn-block { width: 100%; }
.btn-sm { padding: .55rem 1rem; font-size: .8rem; }
.btn-buy { background: var(--gold); color: #111; }
.btn-buy:hover { background: var(--gold-2); }
.btn[disabled], .btn-disabled { background: var(--bg-3); color: var(--muted-2); cursor: not-allowed; }
.btn[disabled]:hover, .btn-disabled:hover { transform: none; }

/* ---------- Grid pozadí ---------- */
.grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 40%, transparent 100%); -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 40%, transparent 100%); pointer-events: none; }

/* ============================================================ HEADER */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(11,11,13,.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); transition: background var(--transition); }
.site-header.scrolled { background: rgba(11,11,13,.97); }
.header-inner { max-width: var(--max-width); margin: 0 auto; padding: .7rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .7rem; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; background: var(--gold); color: #000; font-family: var(--font-display); font-size: 1.5rem; border-radius: var(--radius-sm); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-family: var(--font-display); font-size: 1.15rem; letter-spacing: .5px; }
.brand-sub { font-family: var(--font-mono); font-size: .6rem; letter-spacing: 1.5px; color: var(--muted-2); text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 1.5rem; }
.main-nav > a:not(.btn) { font-size: .9rem; font-weight: 600; color: var(--muted); transition: color var(--transition); }
.main-nav > a:not(.btn):hover { color: var(--text); }
.sys-status { display: inline-flex; align-items: center; gap: .45rem; font-family: var(--font-mono); font-size: .7rem; letter-spacing: 1px; color: var(--muted-2); padding-right: 1.2rem; border-right: 1px solid var(--line); }
.sys-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.cart-link { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--text) !important; }
.cart-count { display: inline-grid; place-items: center; min-width: 22px; height: 22px; padding: 0 6px; background: var(--red); color: #fff; border-radius: 999px; font-size: .76rem; font-weight: 700; font-family: var(--font-mono); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--text); transition: var(--transition); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Flash ---------- */
.flash { padding: .9rem 1.1rem; border-radius: var(--radius-sm); margin: 1.2rem 0; font-size: .95rem; border: 1px solid var(--line); background: var(--bg-2); }
.flash ul { margin: 0; padding-left: 1.2rem; }
.flash-success { border-color: rgba(53,208,127,.4); color: var(--green); }
.flash-error { border-color: rgba(232,57,43,.5); color: #ff6a5e; }
.flash-info { color: var(--muted); }

/* ============================================================ HERO */
.hero { position: relative; padding: clamp(3rem, 7vw, 6rem) 0 3rem; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; position: relative; z-index: 1; }
.hero-copy { max-width: 38rem; }
.hero-cta { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: var(--radius); box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 3.5rem; }
.stat { background: var(--bg-2); padding: 1.6rem 1.4rem; }
.stat dt { font-size: .82rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: .4rem; }
.stat dd { font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.6rem); color: var(--gold); line-height: 1; }

/* ============================================================ SECTIONS */
.section { padding: var(--space-2xl) 0; position: relative; }
.section--tech, .section--apps { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* Technologie */
.tech-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; margin-top: 3.5rem; }
.tech-visual { position: relative; display: grid; place-items: center; }
.tech-visual img { border-radius: var(--radius); position: relative; z-index: 1; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.tech-orb { position: absolute; width: 115%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(245,179,1,.16), transparent 60%); filter: blur(10px); }
.tech-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 1.8rem; }
.tech-item { display: flex; gap: 1.3rem; align-items: flex-start; }
.tech-no { font-family: var(--font-display); font-size: 2rem; color: var(--gold); line-height: 1; min-width: 2.4rem; }
.tech-body h3 { font-size: 1.2rem; text-transform: uppercase; letter-spacing: .5px; margin-bottom: .4rem; }
.tech-body p { color: var(--muted); margin-bottom: .5rem; }

/* Produkty */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 3.5rem; }
.product-card { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem; display: flex; flex-direction: column; transition: transform var(--transition), border-color var(--transition); }
.product-card:hover { transform: translateY(-6px); border-color: var(--gold); }
.card-badge { position: absolute; top: 1rem; right: 1rem; z-index: 2; background: var(--red); color: #fff; font-size: .68rem; font-weight: 800; letter-spacing: 1px; padding: .25rem .55rem; border-radius: 4px; }
.card-tag { font-family: var(--font-mono); font-size: .68rem; letter-spacing: 1.5px; color: var(--gold); text-transform: uppercase; }
.product-media { margin: .9rem 0 1rem; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-3); aspect-ratio: 3/2; }
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.product-name { font-family: var(--font-display); font-size: 1.25rem; letter-spacing: .5px; }
.product-name a { color: inherit; }
.product-variant { font-size: .9rem; color: var(--gold); margin-bottom: .5rem; }
.product-desc { font-size: .88rem; color: var(--muted); flex-grow: 1; margin-bottom: 1.1rem; }
.product-foot { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.product-price { font-family: var(--font-display); font-size: 1.4rem; }
.product-price .vat { font-family: var(--font-sans); font-size: .68rem; color: var(--muted-2); font-weight: 500; }

/* Aplikace */
.apps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3.5rem; }
.app-card { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem 1.6rem; transition: border-color var(--transition), transform var(--transition); }
.app-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.app-no { font-family: var(--font-mono); font-size: .85rem; color: var(--muted-2); }
.app-card h3 { font-size: 1.15rem; text-transform: uppercase; letter-spacing: .5px; margin: .5rem 0 .6rem; }
.app-card p { color: var(--muted); font-size: .92rem; margin-bottom: .9rem; }

/* Cases */
.cases-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-auto-rows: 1fr; gap: 1.5rem; margin-top: 3.5rem; }
.case-card { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 230px; border: 1px solid var(--line); }
.case-card--big { grid-row: span 2; grid-column: 1; }
.case-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.case-card:hover img { transform: scale(1.05); }
.case-overlay { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem; background: linear-gradient(to top, rgba(7,7,9,.92) 10%, rgba(7,7,9,.2) 55%, transparent); }
.case-kicker { font-family: var(--font-mono); font-size: .7rem; letter-spacing: 1.5px; color: var(--gold); margin-bottom: .4rem; }
.case-overlay h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .5px; font-size: 1.2rem; line-height: 1.15; }
.case-card--big .case-overlay h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
.case-desc { margin-top: .5rem; font-size: .85rem; line-height: 1.45; color: var(--muted); max-width: 42ch; }

/* FAQ / Accordion */
.section--faq { background: var(--bg); }
.faq-list, .accordion { margin-top: 3rem; border-top: 1px solid var(--line); }
.faq-item, .accordion-item { border-bottom: 1px solid var(--line); }
.faq-q, .accordion-head { width: 100%; display: flex; align-items: center; gap: 1.2rem; background: none; border: 0; cursor: pointer; color: var(--text); padding: 1.4rem .25rem; text-align: left; font-family: var(--font-sans); }
.faq-no { font-family: var(--font-mono); font-size: .8rem; color: var(--muted-2); }
.faq-text, .accordion-head { flex-grow: 1; font-weight: 700; font-size: 1.02rem; text-transform: uppercase; letter-spacing: .3px; }
.faq-icon, .acc-icon { font-size: 1.6rem; color: var(--gold); line-height: 1; transition: transform var(--transition); margin-left: auto; }
.faq-q[aria-expanded="true"] .faq-icon, .accordion-head[aria-expanded="true"] .acc-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { color: var(--muted); padding: 0 .25rem 1.4rem 2.9rem; max-width: 60ch; }
.accordion-body { color: var(--muted); padding: 0 .25rem 1.4rem; }
.accordion-body[hidden] { display: none; }

/* CTA banner */
.cta-banner { background: var(--gold); color: #111; position: relative; overflow: hidden; }
.cta-banner::after { content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 30%; background-image: repeating-linear-gradient(45deg, rgba(0,0,0,.06) 0 12px, transparent 12px 24px); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: clamp(3rem, 6vw, 5rem) 1.5rem; position: relative; z-index: 1; flex-wrap: wrap; }
.cta-banner .display { color: #111; }
.cta-note { font-weight: 600; margin-top: 1rem; font-size: 1.05rem; }

/* ============================================================ E-SHOP: breadcrumbs */
.breadcrumbs { padding-top: 1.4rem; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; font-family: var(--font-mono); font-size: .78rem; color: var(--muted-2); text-transform: uppercase; letter-spacing: 1px; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--gold); }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: .4rem; color: var(--muted-2); }
.section-title { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .5px; font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.1; margin-bottom: .4rem; }

/* Produkt detail */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; margin-top: 1rem; }
.product-gallery { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.product-gallery img { width: 100%; object-fit: cover; }
.product-info h1 { font-family: var(--font-display); text-transform: uppercase; font-size: clamp(2rem,4vw,3rem); letter-spacing: .5px; }
.product-info .product-variant { font-size: 1rem; margin: .3rem 0 1rem; }
.product-price-lg { font-family: var(--font-display); font-size: 2.4rem; color: var(--gold); margin: 1rem 0; }
.product-price-lg .vat { font-family: var(--font-sans); font-size: .9rem; font-weight: 500; color: var(--muted-2); }
.product-desc-full { color: var(--muted); margin: 1rem 0 1.6rem; }
.buy-row { display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem; flex-wrap: wrap; }
.buy-row label { font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; color: var(--muted-2); }
.qty-input { width: 84px; padding: .75rem; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-mono); }
.stock { font-family: var(--font-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; }
.stock.in { color: var(--green); }
.stock.out { color: #ff6a5e; }

/* Prose stránky */
.prose { max-width: 760px; }
.prose p { color: var(--muted); margin-bottom: 1rem; }
.prose h2 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .5px; font-size: 1.6rem; margin: 2rem 0 .8rem; }
.prose h3 { text-transform: uppercase; letter-spacing: .5px; font-size: 1.1rem; margin-bottom: .4rem; }
.prose ol, .prose ul { margin: 0 0 1rem 1.3rem; color: var(--muted); }
.prose .lead { color: var(--muted); }
.prose .legal-meta { font-family: var(--font-mono, monospace); font-size: .8rem; letter-spacing: .5px; text-transform: uppercase; opacity: .6; margin-bottom: 1.5rem; }
.feature-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; margin: 1.8rem 0; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; }
.feature h3 { color: var(--gold); }
.note-box { background: var(--bg-2); border-left: 3px solid var(--gold); border-radius: var(--radius-sm); padding: 1rem 1.2rem; margin: 1.2rem 0; color: var(--muted); }
.how-steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4,1fr); gap: 1.2rem; margin: 1.5rem 0; }
.how-steps li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; }
.how-steps span { display: grid; place-items: center; width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--gold); color: #000; font-family: var(--font-display); margin-bottom: .8rem; }
.how-steps p { color: var(--muted); }
.dose-list { list-style: none; padding: 0; }
.dose-list li { padding: .65rem 0 .65rem 1.4rem; border-bottom: 1px solid var(--line); position: relative; color: var(--muted); }
.dose-list li::before { content: ''; position: absolute; left: 0; top: 1.1rem; width: 7px; height: 7px; background: var(--gold); border-radius: 2px; }
.dose-list strong { color: var(--text); }

/* ---------- Kalkulačka dávkování ---------- */
.section--calc { padding-top: 1rem; }
.calc { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.4rem, 4vw, 2.6rem); }
.calc .display--lg { margin-top: .3rem; }
.calc-grid { display: grid; gap: 1.6rem; margin-top: 1.8rem; }
.calc-field { border: 0; padding: 0; margin: 0; min-width: 0; }
.calc-field legend { display: flex; align-items: center; gap: .6rem; font-family: var(--font-mono); font-size: .8rem; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-bottom: .9rem; padding: 0; }
.calc-step { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 6px; background: var(--gold); color: #000; font-family: var(--font-display); font-size: .95rem; }
.calc-uses { display: flex; flex-wrap: wrap; gap: .55rem; }
.calc-use { font-family: var(--font-sans); font-size: .85rem; font-weight: 600; color: var(--muted); background: var(--bg-2); border: 1px solid var(--line); border-radius: 999px; padding: .55rem 1rem; cursor: pointer; transition: color var(--transition), border-color var(--transition), background var(--transition); }
.calc-use:hover { color: var(--text); border-color: var(--muted-2); }
.calc-use.is-active { background: var(--gold); color: #111; border-color: var(--gold); }
.calc-volume { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.calc-volume input[type="range"] { flex: 1 1 240px; min-width: 200px; -webkit-appearance: none; appearance: none; height: 6px; border-radius: 999px; background: linear-gradient(90deg, var(--gold), var(--red)); cursor: pointer; }
.calc-volume input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 3px solid var(--gold); cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,.5); }
.calc-volume input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 3px solid var(--gold); cursor: pointer; }
.calc-volume-out { display: flex; align-items: baseline; gap: .4rem; }
.calc-volume-out input { width: 84px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-display); font-size: 1.5rem; padding: .35rem .6rem; text-align: center; }
.calc-unit { color: var(--muted); font-size: .9rem; }
.calc-toggle { display: inline-flex; align-items: center; gap: .55rem; margin-top: 1rem; color: var(--muted); font-size: .9rem; cursor: pointer; }
.calc-toggle input { width: 18px; height: 18px; accent-color: var(--gold); cursor: pointer; }
.calc-toggle em { color: var(--muted-2); font-style: normal; }
.calc-result { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1rem; margin-top: 2rem; }
.calc-dose, .calc-reco { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; }
.calc-dose { border-color: var(--gold); }
.calc-dose-label, .calc-reco-label { display: block; font-family: var(--font-mono); font-size: .72rem; letter-spacing: 1px; text-transform: uppercase; color: var(--muted-2); margin-bottom: .6rem; }
.calc-dose-num { display: block; font-family: var(--font-display); font-size: clamp(2.4rem, 8vw, 3.4rem); line-height: 1; color: var(--text); }
.calc-dose-num strong { color: var(--gold); }
.calc-dose-rule { display: block; margin-top: .5rem; font-size: .85rem; color: var(--muted); }
.calc-reco-body { display: flex; flex-direction: column; gap: .5rem; }
.calc-pack { display: flex; align-items: center; gap: .7rem; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .6rem .8rem; transition: border-color var(--transition); }
.calc-pack:hover { border-color: var(--gold); }
.calc-pack-qty { font-family: var(--font-display); color: var(--gold); font-size: 1.05rem; }
.calc-pack-name { flex: 1; font-weight: 600; font-size: .9rem; }
.calc-pack-price { font-family: var(--font-mono); font-size: .82rem; color: var(--muted); }
.calc-reco-foot { display: flex; flex-wrap: wrap; gap: .4rem 1rem; margin-top: .3rem; }
.calc-reco-total { font-weight: 700; color: var(--text); font-size: .92rem; }
.calc-reco-left { font-size: .82rem; color: var(--muted-2); }
.calc-note { margin-top: 1.4rem; font-size: .82rem; color: var(--muted-2); }
@media (max-width: 680px) {
  .calc-result { grid-template-columns: 1fr; }
}

/* Košík + pokladna */
.checkout-wrap { max-width: 1000px; }
.cart-steps { display: flex; gap: .6rem; font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted-2); margin-bottom: 1.8rem; flex-wrap: wrap; }
.cart-steps .active { color: var(--gold); }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td { padding: .85rem .6rem; border-bottom: 1px solid var(--line); text-align: left; }
.cart-table th { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted-2); }
.cart-table a { color: var(--text); }
.cart-table a:hover { color: var(--gold); }
.cart-table small { color: var(--muted-2); }
.js-qty { width: 70px; padding: .5rem; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); }
.line-total { font-weight: 700; color: var(--gold); }
.link-remove { background: none; border: 0; color: var(--muted-2); cursor: pointer; font-size: 1.1rem; }
.link-remove:hover { color: var(--red); }
.cart-footer { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 2rem; }
.discount-box label, .discount-msg { font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted-2); }
.discount-row { display: flex; gap: .5rem; margin-top: .5rem; }
.discount-row input { flex: 1; padding: .7rem; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); text-transform: uppercase; }
.discount-msg { margin-top: .5rem; min-height: 1.1em; }
.discount-msg.ok { color: var(--green); } .discount-msg.err { color: #ff6a5e; }
.cart-totals { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.cart-totals p { display: flex; justify-content: space-between; margin-bottom: .6rem; color: var(--muted); }
.cart-totals .big { font-family: var(--font-display); font-size: 1.4rem; color: var(--gold); border-top: 1px solid var(--line); padding-top: .8rem; margin-top: .3rem; }
.cart-totals .big strong { font-weight: 400; }
.empty { color: var(--muted); }

.checkout-form fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; margin-bottom: 1.4rem; background: var(--bg-2); }
.checkout-form legend { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .5px; color: var(--gold); padding: 0 .5rem; font-size: 1.05rem; }
.checkout-form label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .9rem; color: var(--muted); }
.checkout-form input, .checkout-form textarea, .checkout-form select { width: 100%; padding: .7rem .8rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); font-family: inherit; font-size: .95rem; margin-top: .3rem; }
.checkout-form .check { display: flex; align-items: center; gap: .5rem; font-weight: 500; }
.checkout-form .check input { width: auto; margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 1rem; }
.radio-row { display: flex; align-items: center; gap: .7rem; padding: .8rem; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; margin-bottom: .5rem; background: var(--bg); }
.radio-row:hover { border-color: var(--gold); }
.radio-row input { width: auto; margin: 0; }
.radio-row .price { margin-left: auto; font-weight: 700; color: var(--gold); }
.packeta-point { margin-top: .8rem; padding: 1rem; background: var(--bg); border-radius: var(--radius-sm); border: 1px solid var(--line); }
.packeta-point small, .ship-diff small { color: var(--muted-2); font-size: .8rem; }
.form-actions { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.summary-grid { display: grid; grid-template-columns: 1.4fr .9fr; gap: 2rem; align-items: start; }
.summary-grid h2 { font-family: var(--font-display); text-transform: uppercase; font-size: 1.3rem; margin: 1.4rem 0 .6rem; letter-spacing: .5px; }
.summary-totals { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; position: sticky; top: 90px; }
.summary-totals p { display: flex; justify-content: space-between; margin-bottom: .6rem; color: var(--muted); }
.summary-totals .big { font-family: var(--font-display); font-size: 1.5rem; color: var(--gold); border-top: 1px solid var(--line); padding-top: .8rem; }
.summary-totals .btn { margin-top: .8rem; }
.fineprint { font-size: .8rem; color: var(--muted-2); margin-top: .8rem; }
.thankyou .lead { color: var(--muted); }
.pay-info { background: var(--bg-2); border-left: 3px solid var(--gold); border-radius: var(--radius-sm); padding: 1.3rem; margin: 1.5rem 0; }
.pay-info h2 { font-family: var(--font-display); text-transform: uppercase; font-size: 1.2rem; margin-bottom: .6rem; }
.total-row td { border-top: 2px solid var(--line); color: var(--gold); }

.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact-form-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; }
.contact-form-box label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .9rem; color: var(--muted); }
.contact-form-box input, .contact-form-box textarea { width: 100%; padding: .7rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); margin-top: .3rem; font-family: inherit; }

/* Error */
.error-page { min-height: 60vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 4rem 1.5rem; }
.error-page h1 { font-family: var(--font-display); font-size: clamp(5rem, 18vw, 11rem); color: var(--gold); line-height: 1; }
.error-page p { color: var(--muted); margin: 1rem 0 2rem; font-size: 1.1rem; }

/* ============================================================ FOOTER */
.site-footer { background: #08080a; border-top: 1px solid var(--line); padding: 4rem 0 1.5rem; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; }
.brand--footer { margin-bottom: 1.2rem; }
.footer-claim { color: var(--muted); font-size: .95rem; max-width: 32ch; }
.footer-h { font-family: var(--font-mono); font-size: .78rem; letter-spacing: 1.5px; color: var(--gold); text-transform: uppercase; margin-bottom: 1.1rem; font-weight: 500; }
.footer-col a { display: block; color: var(--muted); font-size: .92rem; padding: .3rem 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); flex-wrap: wrap; }
.footer-contact { color: var(--muted); font-size: .88rem; display: flex; gap: .6rem; flex-wrap: wrap; }
.footer-contact span[aria-hidden] { color: var(--muted-2); }
.footer-credit { text-align: right; font-size: .8rem; color: #8a8a90; }
.footer-credit a { color: #bdbdc4; text-underline-offset: 3px; text-decoration: underline; transition: color var(--transition); }
.footer-credit a:hover { color: var(--gold); }

/* Cookie lišta */
.cookie-bar { position: fixed; bottom: 1rem; left: 1rem; right: 1rem; max-width: 760px; margin: 0 auto; background: var(--bg-2); border: 1px solid var(--line); color: var(--text); padding: 1rem 1.2rem; border-radius: var(--radius); display: flex; align-items: center; gap: 1rem; box-shadow: 0 10px 40px rgba(0,0,0,.5); z-index: 500; }
.cookie-bar p { font-size: .88rem; margin: 0; color: var(--muted); }
.cookie-bar a { color: var(--gold); }
.cookie-bar[hidden] { display: none; }

/* Reveal animace */
.reveal { transition: opacity .6s ease, transform .6s ease; opacity: 0; transform: translateY(24px); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================ ADMIN */
.admin-login-body { display: grid; place-items: center; min-height: 100vh; background: var(--bg); }
.admin-login { background: var(--bg-2); padding: 2.5rem; border-radius: var(--radius); width: 100%; max-width: 380px; border: 1px solid var(--line); }
.admin-login h1 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 1.2rem; text-align: center; color: var(--gold); text-transform: uppercase; }
.admin-login label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 1rem; color: var(--muted); }
.admin-login input { width: 100%; padding: .75rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); margin-top: .3rem; }
.admin-login-foot { text-align: center; margin-top: 1rem; font-size: .85rem; }
.admin-login-foot a { color: var(--muted); }

.admin-body { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; background: var(--bg); }
.admin-sidebar { background: #08080a; border-right: 1px solid var(--line); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.admin-logo { padding: 1.4rem 1.3rem; font-family: var(--font-display); color: var(--gold); font-size: 1.2rem; border-bottom: 1px solid var(--line); text-transform: uppercase; }
.admin-logo small { display: block; font-family: var(--font-mono); font-size: .62rem; color: var(--muted-2); font-weight: 400; letter-spacing: 1.5px; }
.admin-sidebar nav { display: flex; flex-direction: column; padding: .8rem 0; flex: 1; }
.admin-sidebar nav a { color: var(--muted); padding: .75rem 1.3rem; font-weight: 600; font-size: .92rem; }
.admin-sidebar nav a:hover { background: var(--bg-2); color: var(--gold); }
.admin-side-foot { padding: 1rem 1.3rem; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-size: .85rem; color: var(--muted-2); }
.admin-side-foot .logout { color: var(--red); }
.admin-main { padding: 2rem 2.2rem; }
.admin-main h1 { font-family: var(--font-display); text-transform: uppercase; font-size: 1.7rem; margin-bottom: 1.3rem; letter-spacing: .5px; }
.admin-main h2 { font-size: 1.1rem; text-transform: uppercase; letter-spacing: .5px; margin-bottom: .8rem; }
.admin-head-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.3rem; gap: 1rem; flex-wrap: wrap; }
.admin-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.2rem; margin-bottom: 2rem; }
.admin-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem; display: flex; flex-direction: column; gap: .2rem; }
.card-label { font-family: var(--font-mono); font-size: .72rem; color: var(--muted-2); text-transform: uppercase; letter-spacing: 1px; }
.card-value { font-family: var(--font-display); font-size: 1.8rem; color: var(--gold); }
.card-sub { font-size: .85rem; color: var(--muted-2); }
.admin-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.admin-table th, .admin-table td { padding: .75rem .9rem; text-align: left; border-bottom: 1px solid var(--line); font-size: .9rem; }
.admin-table th { background: var(--bg-2); font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted-2); }
.admin-table a { color: var(--gold); }
.admin-table tfoot td { background: var(--bg-2); font-weight: 600; }
.admin-table .warn { color: var(--gold); font-weight: 700; }
.admin-table .danger { color: #ff6a5e; font-weight: 700; }
.admin-table small { color: var(--muted-2); }
.status-badge { display: inline-block; padding: .2rem .6rem; border-radius: 999px; font-size: .74rem; font-weight: 700; font-family: var(--font-mono); background: var(--bg-3); color: var(--muted); }
.s-nova { background: rgba(245,179,1,.15); color: var(--gold); }
.s-ceka_na_platbu { background: rgba(245,179,1,.1); color: var(--gold-2); }
.s-zaplaceno, .s-dorucena { background: rgba(53,208,127,.15); color: var(--green); }
.s-odeslano, .s-zpracovava_se { background: rgba(120,170,255,.12); color: #8db0ff; }
.s-stornovana, .s-vracena { background: rgba(232,57,43,.15); color: #ff6a5e; }
.admin-filters { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.2rem; }
.admin-filters a { padding: .4rem .8rem; border-radius: 999px; background: var(--bg-2); border: 1px solid var(--line); font-size: .82rem; color: var(--muted); }
.admin-filters a.active { background: var(--gold); color: #000; border-color: var(--gold); }
.admin-form { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; max-width: 760px; }
.admin-form label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 1rem; color: var(--muted); }
.admin-form input, .admin-form textarea, .admin-form select { width: 100%; padding: .65rem .75rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); margin-top: .3rem; font-family: inherit; font-size: .92rem; }
.admin-form .check { display: flex; align-items: center; gap: .5rem; }
.admin-form .check input { width: auto; margin: 0; }
.admin-form h2 { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.admin-form h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.admin-inline-form { display: flex; gap: .5rem; margin-bottom: 1rem; align-items: center; }
.admin-inline-form select, .admin-inline-form input { padding: .55rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text); }

/* ============================================================ RESPONSIVE */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-layout { gap: 2.5rem; }
}
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 1rem 1.5rem 1.5rem; transform: translateY(-130%); transition: transform .3s ease; max-height: 80vh; overflow-y: auto; }
  .main-nav.open { transform: translateY(0); }
  .main-nav > a:not(.btn) { padding: .9rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .sys-status { border: 0; padding: .9rem 0; }
  .btn-order { margin-top: 1rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .tech-layout { grid-template-columns: 1fr; }
  .tech-visual { max-width: 420px; margin: 0 auto; }
  .cases-grid { grid-template-columns: 1fr 1fr; }
  .case-card--big { grid-row: span 1; grid-column: span 2; min-height: 280px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .product-detail, .summary-grid, .contact-wrap, .admin-grid-2, .cart-footer, .feature-row { grid-template-columns: 1fr; }
  .summary-totals { position: static; }
  .admin-cards { grid-template-columns: repeat(2, 1fr); }
  .how-steps { grid-template-columns: repeat(2, 1fr); }
  .admin-body { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .admin-sidebar nav { flex-direction: row; flex-wrap: wrap; padding: .4rem; }
  .admin-sidebar nav a { padding: .5rem .8rem; }
  .admin-main { padding: 1.2rem; }
}
@media (max-width: 540px) {
  .container { padding: 0 1.1rem; }
  .section { padding: 3.5rem 0; }
  .hero-cta { width: 100%; }
  .hero-cta .btn { white-space: normal; flex: 1 1 100%; }
  .product-grid, .apps-grid, .how-steps { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-card--big { grid-column: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-credit { text-align: left; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .admin-cards { grid-template-columns: 1fr; }
  .cart-table thead { display: none; }
  .cart-table tr { display: grid; grid-template-columns: 1fr auto; padding: .6rem 0; }
  .cart-table td { border: 0; padding: .2rem .4rem; }
  .cart-table td::before { content: attr(data-label) ": "; color: var(--muted-2); font-size: .75rem; font-family: var(--font-mono); }
}
@media (max-width: 380px) {
  .display { font-size: clamp(2.1rem, 9vw, 2.6rem); }
  .stat-strip { grid-template-columns: 1fr; }
  .header-inner { padding: .7rem 1.1rem; }
}

/* Doplněk: nadpisy obsahových stránek */
.prose h1 { font-family: var(--font-display); text-transform: uppercase; font-size: clamp(2rem, 4vw, 2.8rem); letter-spacing: .5px; margin-bottom: 1rem; }
.prose .lead { font-size: 1.15rem; margin: 0 0 1.5rem; }
.contact-wrap .prose h1 { margin-bottom: 1rem; }

/* ---------- Hlavní nadpisy: těžký condensed (Saira) s plnou českou diakritikou ---------- */
.display,
.section-title,
.prose h1,
.product-info h1,
.error-page h1 { font-family: var(--font-hero); font-weight: 800; }