/* =========================================================
   AI v praxi — prezentácia
   ========================================================= */

:root {
  --bg: #0b0d14;
  --bg-2: #11141e;
  --surface: #161a27;
  --surface-2: #1d2232;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #eef0f6;
  --text-2: #aab1c5;
  --text-3: #8b93aa;
  --accent: #7c6cff;
  --accent-2: #28d6c4;
  --accent-soft: rgba(124, 108, 255, 0.16);
  --good: #3ddc97;
  --bad: #ff6b7a;
  --warn: #ffb347;
  --radius: 16px;
  --radius-sm: 10px;
  --controls-h: 64px;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Utility ---------- */

.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;
}
.noscript-note {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 10px 16px; background: var(--warn); color: #1a1400; font-size: 14px; text-align: center;
}

/* ---------- Deck & slides ---------- */

.deck {
  position: fixed;
  inset: 0 0 var(--controls-h) 0;
}

.slide {
  position: absolute;
  inset: 0;
  padding: clamp(28px, 5vh, 64px) clamp(24px, 7vw, 110px);
  display: flex;
  flex-direction: column;
  justify-content: safe center;
  gap: clamp(14px, 2.2vh, 26px);
  opacity: 0;
  visibility: hidden;
  transform: translateX(40px);
  transition: opacity 0.45s var(--ease), transform 0.55s var(--ease), visibility 0s 0.55s;
  overflow-x: hidden;
  overflow-y: auto;
  font-size: clamp(14px, 1.55vw, 19px);
}

.slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  transition: opacity 0.45s var(--ease), transform 0.55s var(--ease), visibility 0s;
}

.deck.dir-back .slide:not(.is-active) { transform: translateX(-40px); }

/* staggered entrance of children */
.slide > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.6s var(--ease);
}
.slide.is-active > * { opacity: 1; transform: none; }
.slide.is-active > *:nth-child(1) { transition-delay: 0.05s; }
.slide.is-active > *:nth-child(2) { transition-delay: 0.12s; }
.slide.is-active > *:nth-child(3) { transition-delay: 0.19s; }
.slide.is-active > *:nth-child(4) { transition-delay: 0.26s; }
.slide.is-active > *:nth-child(5) { transition-delay: 0.33s; }
.slide.is-active > *:nth-child(6) { transition-delay: 0.40s; }
.slide > .bg-grid, .slide > .bg-glow { opacity: 1 !important; transform: none !important; }

/* ---------- Backgrounds ---------- */

.bg-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}
.bg-glow {
  position: absolute; pointer-events: none; border-radius: 50%;
}
.bg-glow--a { width: 90vw; height: 90vw; left: -30vw; top: -45vw; background: radial-gradient(circle, rgba(124,108,255,0.55) 0%, rgba(124,108,255,0.18) 40%, transparent 70%); }
.bg-glow--b { width: 80vw; height: 80vw; right: -28vw; bottom: -40vw; background: radial-gradient(circle, rgba(40,214,196,0.45) 0%, rgba(40,214,196,0.12) 40%, transparent 70%); }

/* ---------- Typography ---------- */

h1, h2, h3 { font-family: var(--font-display); margin: 0; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 3.6vw, 52px); font-weight: 700; }
h3 { font-size: 1.25em; font-weight: 600; margin-bottom: 0.35em; }
p { margin: 0; line-height: 1.55; }
.accent { color: var(--accent); }
.muted { color: var(--text-2); }
.small { font-size: 0.82em; }
.center { text-align: center; }
.mono { font-family: var(--font-mono); }
em { color: var(--accent-2); font-style: normal; }
strong { color: var(--text); font-weight: 600; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.95em; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent-2);
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }

.slide-head { display: flex; flex-direction: column; gap: 8px; }
.lead { font-size: 1.22em; color: var(--text-2); max-width: 60ch; }
.lead strong { color: var(--accent); }

.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 12px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-2);
  font-size: 0.95em;
}
.callout.mono { font-size: 0.9em; letter-spacing: 0.02em; color: var(--text); }
.callout a { color: var(--accent-2); text-decoration: none; border-bottom: 1px solid rgba(40,214,196,0.35); transition: border-bottom-color 0.2s; }
.callout a:hover { border-bottom-color: var(--accent-2); }

/* ---------- Title slide ---------- */

.slide--title { align-items: center; text-align: center; }
.title-wrap { position: relative; display: flex; flex-direction: column; align-items: center; gap: 22px; max-width: 1000px; }
.hero-title {
  font-size: clamp(52px, 9vw, 132px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.hero-sub { font-size: clamp(15px, 1.6vw, 21px); color: var(--text-2); line-height: 1.6; max-width: 58ch; }
.hero-parts { display: flex; gap: 16px; margin-top: 8px; flex-wrap: wrap; justify-content: center; }
.part-card {
  display: flex; flex-direction: column; gap: 4px; text-align: left;
  padding: 16px 22px; min-width: 240px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--radius);
  backdrop-filter: blur(8px);
}
.part-num { font-family: var(--font-mono); font-size: 0.7em; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.part-card strong { font-family: var(--font-display); font-size: 1.1em; }
.part-card .muted { font-size: 0.82em; }
.hint-keys { font-size: 0.78em; color: var(--text-3); margin-top: 12px; }
kbd {
  font-family: var(--font-mono); font-size: 0.9em;
  padding: 2px 7px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text-2);
}

.slide--thanks .hero-title { font-size: clamp(44px, 7vw, 108px); }

/* ---------- Section slides ---------- */

.slide--section { align-items: flex-start; }
.section-num {
  font-family: var(--font-mono); font-size: clamp(60px, 10vw, 150px); font-weight: 500;
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,0.3); line-height: 1;
}
.section-title { font-size: clamp(44px, 7vw, 104px); letter-spacing: -0.04em; line-height: 1; }
.section-sub { font-size: clamp(15px, 1.6vw, 22px); color: var(--text-2); max-width: 50ch; }
.demo-wrap { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.8fr); gap: 18px; align-items: stretch; width: min(100%, 1040px); }

.agent-demo {
  background: #0a0c12; border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 14px 20px 16px; font-family: var(--font-mono); font-size: 0.8em;
  display: flex; flex-direction: column; gap: 9px; min-width: 0;
}
.agent-demo .terminal-bar { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.agent-demo .terminal-bar span { margin-left: 10px; color: var(--text-3); font-size: 0.85em; }
.ad-line { display: flex; gap: 10px; align-items: flex-start; color: var(--text-2); line-height: 1.5; opacity: 0; transform: translateY(6px); }
.ad-text { min-width: 0; }
.slide.is-active .ad-line { animation: ad-in 0.5s var(--ease) forwards; }
.slide.is-active .ad-line:nth-of-type(1) { animation-delay: 0.6s; }
.slide.is-active .ad-line:nth-of-type(2) { animation-delay: 1.6s; }
.slide.is-active .ad-line:nth-of-type(3) { animation-delay: 2.6s; }
.slide.is-active .ad-line:nth-of-type(4) { animation-delay: 3.6s; }
.slide.is-active .ad-line:nth-of-type(5) { animation-delay: 4.8s; }
@keyframes ad-in { to { opacity: 1; transform: none; } }
.ad-sign { flex: 0 0 16px; text-align: center; color: var(--accent); }
.ad-user { color: var(--text); }
.ad-user .ad-sign { color: var(--accent-2); }
.ad-user b, .ad-done b { color: var(--accent-2); font-weight: 500; }
.ad-dim { color: var(--text-3); }
.ad-file { color: var(--warn); }
.ad-ok { color: var(--good); }
.ad-done { color: var(--text); }
.ad-done .ad-sign { color: var(--good); }
.ad-caption { font-family: var(--font-body); font-size: 0.95em; color: var(--text-3); border-top: 1px solid var(--border); padding-top: 10px; margin-top: auto; }

/* mini app (výsledok) */
.mini-app {
  display: flex; flex-direction: column; gap: 8px;
  opacity: 0; transform: translateY(10px) scale(0.97);
}
.slide.is-active .mini-app { animation: ad-in 0.6s var(--ease) forwards; animation-delay: 5.6s; }
.mini-app-bar {
  display: flex; align-items: center; gap: 6px; padding: 8px 12px;
  background: #e9ecf3; border-radius: 12px 12px 0 0; border: 1px solid #d5d9e4; border-bottom: 0;
}
.mini-app-bar i { width: 9px; height: 9px; border-radius: 50%; background: #c9cedb; }
.mini-app-bar span { margin-left: 8px; font-family: var(--font-mono); font-size: 0.7em; color: #6b7286; }
.mini-app-body {
  flex: 1; background: #ffffff; color: #1c2030; border: 1px solid #d5d9e4; border-top: 0;
  border-radius: 0 0 12px 12px; padding: 16px 18px; font-family: var(--font-body);
  display: flex; flex-direction: column; gap: 10px;
}
.mini-app-body h4 { margin: 0; font-family: var(--font-display); font-size: 1em; color: #1c2030; }
.mini-app-body ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.mini-app-body li { display: flex; justify-content: space-between; gap: 10px; font-size: 0.82em; padding: 7px 10px; background: #f4f5f9; border-radius: 8px; }
.mini-app-body li b { color: #f5a623; font-weight: 500; letter-spacing: 1px; white-space: nowrap; }
.mini-app-body button {
  margin-top: auto; border: 0; border-radius: 8px; padding: 8px 12px; font-size: 0.8em; font-weight: 600;
  background: var(--accent); color: #fff; font-family: var(--font-body); cursor: default;
}
.mini-app-label { font-family: var(--font-mono); font-size: 0.72em; color: var(--text-3); text-align: center; }

/* ---------- Layout helpers ---------- */

.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(14px, 2vw, 26px); }
.cols-2--wide-right { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); align-items: center; }
.cols-2--wide-left { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2vw, 26px); }
.grid-2x2 { grid-template-rows: auto auto; }

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(14px, 2vw, 24px);
  display: flex; flex-direction: column; gap: 6px;
  position: relative;
}
.card p { color: var(--text-2); font-size: 0.95em; }
.card h3 { color: var(--text); }
.card h3 .abbr {
  display: block; font-family: var(--font-mono); font-size: 0.58em; font-weight: 500;
  letter-spacing: 0.06em; color: var(--text-3); margin-top: 3px;
}
.card--accent { border-color: rgba(124,108,255,0.5); background: linear-gradient(160deg, var(--accent-soft), var(--surface) 60%); }
.card--ghost { border-style: dashed; }
.card--alt { border-color: rgba(40,214,196,0.45); background: linear-gradient(160deg, rgba(40,214,196,0.12), var(--surface) 60%); }
.spectrum .card p { font-size: 0.9em; }
.card--good { border-color: rgba(61,220,151,0.35); }
.card--bad { border-color: rgba(255,107,122,0.35); }
.card--warn::before {
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px;
  background: var(--warn); border-radius: 0 3px 3px 0;
}
.card .example { font-family: var(--font-mono); font-size: 0.78em; color: var(--accent-2); margin-top: auto; }
.card .quote { font-family: var(--font-display); font-size: 1.12em; color: var(--text); line-height: 1.45; }

.tag {
  display: inline-block; align-self: flex-start;
  font-family: var(--font-mono); font-size: 0.68em; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 6px;
}
.tag--alt { background: rgba(40,214,196,0.14); color: var(--accent-2); }
.tag--muted { background: rgba(255,255,255,0.08); color: var(--text-2); }
.tag--good { background: rgba(61,220,151,0.14); color: var(--good); }
.tag--bad { background: rgba(255,107,122,0.14); color: var(--bad); }

.big-n {
  font-family: var(--font-mono); font-size: 2.2em; font-weight: 500; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--accent);
}
.takeaways .card p { font-size: 1.05em; color: var(--text); }

/* ---------- Lists ---------- */

.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.list li { position: relative; padding-left: 22px; line-height: 1.5; color: var(--text-2); }
.list li::before {
  content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 8px; border-radius: 2px;
  background: var(--accent); transform: rotate(45deg);
}
.list--defs li { font-size: 1em; }
.list--check li::before, .list--cross li::before {
  content: "✓"; background: none; transform: none; top: 0; font-weight: 700; color: var(--good);
}
.list--cross li::before { content: "✕"; color: var(--bad); }

.agenda h3 { margin: 8px 0 12px; }
.agenda-col { display: flex; flex-direction: column; }
.agenda-col .small { margin-top: 14px; }

.numbered { list-style: none; margin: 0; padding: 0; counter-reset: n; display: flex; flex-direction: column; gap: 10px; }
.numbered li {
  counter-increment: n;
  display: grid; grid-template-columns: 44px 230px 1fr; gap: 14px; align-items: baseline;
  padding: 12px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.numbered li::before {
  content: counter(n, decimal-leading-zero);
  font-family: var(--font-mono); color: var(--accent); font-size: 0.95em;
}
.numbered b { font-family: var(--font-display); font-size: 1.05em; }
.numbered span { color: var(--text-2); font-size: 0.95em; }

.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.timeline li { display: flex; flex-direction: column; gap: 4px; padding-top: 12px; border-top: 2px solid var(--accent); }
.timeline b { font-family: var(--font-mono); color: var(--accent-2); font-size: 0.85em; }
.timeline span { color: var(--text-2); font-size: 0.92em; }
.timeline .who { font-size: 0.74em; color: var(--accent-2); line-height: 1.4; margin-top: 2px; }

.pills { display: flex; gap: 10px; flex-wrap: wrap; }
.pill {
  flex: 1 1 0; display: flex; flex-direction: column; gap: 2px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
}
.pill b { font-family: var(--font-display); color: var(--accent); }
.pill span { font-size: 0.82em; color: var(--text-3); }

/* ---------- Nested circles (AI ⊃ ML ⊃ DL ⊃ GenAI) ---------- */

.nest { display: flex; justify-content: center; }
.nest-ring {
  position: relative;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  padding: 42px;
  background: rgba(255,255,255,0.015);
  display: flex; flex-direction: column; align-items: center;
}
.nest-ring > span {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.66em; letter-spacing: 0.14em; text-transform: uppercase;
  white-space: nowrap; color: var(--text-2);
}
.nest-ring--core {
  width: 150px; height: 150px; padding: 0; justify-content: center;
  background: var(--accent-soft); border-color: var(--accent);
}
.nest-ring--core > span { position: static; transform: none; color: var(--accent); text-align: center; white-space: normal; }
.nest-ring--core small { font-size: 0.66em; color: var(--text-3); text-align: center; margin-top: 4px; }

/* ---------- Terminal / probs ---------- */

.terminal {
  background: #0a0c12; border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 16px 20px 18px; font-family: var(--font-mono); display: flex; flex-direction: column; gap: 14px;
}
.terminal-bar { display: flex; gap: 6px; }
.terminal-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-2); }
.terminal-bar i:first-child { background: var(--bad); }
.terminal-bar i:nth-child(2) { background: var(--warn); }
.terminal-bar i:nth-child(3) { background: var(--good); }
.terminal-line { font-size: 0.95em; }
.prompt-sign { color: var(--accent-2); margin-right: 6px; }
.cursor { color: var(--accent); animation: blink 1s steps(1) infinite; }
.probs { display: flex; flex-direction: column; gap: 8px; }
.prob { display: grid; grid-template-columns: 100px 1fr 48px; align-items: center; gap: 12px; font-size: 0.85em; }
.prob span { color: var(--text-2); }
.prob b { text-align: right; color: var(--text-3); font-weight: 500; }
.bar { height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 4px; transition: width 1s var(--ease) 0.5s; }
.slide.is-active .bar i { width: var(--w); }
.terminal .small { font-family: var(--font-body); }

/* ---------- Effort meter ---------- */

.meter { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; margin-top: auto; }
.meter i { display: block; height: 100%; width: 0; border-radius: 3px; background: linear-gradient(90deg, var(--accent-2), var(--accent)); transition: width 1s var(--ease) 0.5s; }
.slide.is-active .meter i { width: var(--w); }
.effort .card { min-height: 100%; }
.models .card p, .effort .card p { font-size: 0.9em; }

/* ---------- Tokens ---------- */

.tokens { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 1.3em; }
.tok { padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); }
.tok:nth-child(odd) { background: var(--accent-soft); border-color: rgba(124,108,255,0.4); }
.tok:nth-child(even) { background: rgba(40,214,196,0.12); border-color: rgba(40,214,196,0.4); }
.tok-count { margin-left: 12px; color: var(--text-3); font-size: 0.75em; }

/* ---------- Steps (evolution) ---------- */

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; }
.step {
  padding: 18px 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.step--hot { border-color: rgba(124,108,255,0.5); background: linear-gradient(160deg, var(--accent-soft), var(--surface) 70%); }
.step-n { font-family: var(--font-mono); color: var(--accent); font-size: 0.85em; }
.step p { color: var(--text-2); font-size: 0.92em; }
.step small { font-family: var(--font-mono); font-size: 0.72em; color: var(--text-3); margin-top: auto; padding-top: 8px; }

/* ---------- Trasa: jadro / voliteľné / referencia ---------- */

.route {
  display: inline-block; vertical-align: middle;
  font-family: var(--font-mono); font-size: 0.62em; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; line-height: 1.4;
  background: rgba(255,255,255,0.07); color: var(--text-3); border: 1px solid var(--border);
}
.route--core { color: var(--accent-2); border-color: rgba(40,214,196,0.35); background: rgba(40,214,196,0.08); }
.route--optional { color: var(--warn); border-color: rgba(255,179,71,0.35); background: rgba(255,179,71,0.08); }
.route--reference { color: var(--text-2); }
.eyebrow .route { margin-left: 6px; letter-spacing: 0.12em; }
.route-legend { font-size: 0.82em; color: var(--text-3); }
.route-legend .route { font-size: 0.78em; margin-right: 4px; }

/* ---------- Limity: problém → reakcia, semafor ---------- */

.fix { font-family: var(--font-mono); font-size: 0.8em; color: var(--good); margin-top: 4px; line-height: 1.45; }
.semafor { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; color: var(--text-2); font-size: 0.95em; }
.semafor li { display: flex; align-items: center; gap: 10px; }
.semafor i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex: none; }
.s-green { background: var(--good); box-shadow: 0 0 8px var(--good); }
.s-orange { background: var(--warn); box-shadow: 0 0 8px var(--warn); }
.s-red { background: var(--bad); box-shadow: 0 0 8px var(--bad); }

/* ---------- Vrstvy (model → agent), riziká, zdroje ---------- */

.pains .card p { font-size: 0.88em; }
.pains .card h3 { font-size: 1.05em; }
.sources li { font-size: 0.92em; }
.sources a { color: var(--accent-2); text-decoration: none; border-bottom: 1px solid rgba(40,214,196,0.35); }
.sources a:hover { border-bottom-color: var(--accent-2); }

/* ---------- Skills & MCP ---------- */

.skill-tree .code {
  margin: 0; font-family: var(--font-mono); font-size: 0.85em; line-height: 1.7; color: var(--text);
  white-space: pre; overflow-x: auto;
}
.skill-tree .code b { color: var(--accent-2); font-weight: 600; }
.mcp { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: stretch; }
.mcp-col { display: flex; flex-direction: column; gap: 8px; justify-content: center; }
.mcp-box {
  padding: 10px 14px; border-radius: var(--radius-sm); text-align: center; font-size: 0.92em;
  background: var(--accent-soft); border: 1px solid rgba(124,108,255,0.4); color: var(--text);
}
.mcp-box--alt { background: rgba(40,214,196,0.1); border-color: rgba(40,214,196,0.4); }
.mcp-mid {
  position: relative; min-width: 210px;
  display: flex; align-items: center; justify-content: center;
}
.mcp-net { position: absolute; inset: 0; width: 100%; height: 100%; }
.mcp-net path { fill: none; stroke-width: 1.4; vector-effect: non-scaling-stroke; stroke-linecap: round; }
.mcp-net .in { stroke: var(--accent); opacity: 0.5; }
.mcp-net .out { stroke: var(--accent-2); opacity: 0.5; }
.mcp-net .flow { stroke-width: 2.4; stroke-dasharray: 2 10; opacity: 0.95; animation: mcpFlow 1.4s linear infinite; }
.mcp-net .flow.in { stroke: #b6adff; }
.mcp-net .flow.out { stroke: #7ef0e2; }
@keyframes mcpFlow { to { stroke-dashoffset: -12; } }
.mcp-mid b {
  position: relative; z-index: 1;
  font-family: var(--font-mono); font-size: 1.1em; color: var(--accent); letter-spacing: 0.1em;
  padding: 10px 18px; border: 1px solid rgba(124,108,255,0.6); border-radius: 999px; background: var(--surface);
  box-shadow: 0 0 0 6px rgba(124,108,255,0.08), 0 0 28px rgba(124,108,255,0.35);
}
.cols-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cols-list li { font-size: 0.9em; }

.pricing .list { gap: 8px; }
.pricing .list li { font-size: 0.9em; line-height: 1.45; }
.pricing h3 { font-size: 1.1em; }

/* ---------- Lokálne modely ---------- */

.local .card p { font-size: 0.88em; }
.local .card h3 { font-size: 1.05em; }
.hw { display: flex; flex-direction: column; gap: 8px; }
.hw-row {
  display: grid; grid-template-columns: 90px 1fr 1.3fr; gap: 16px; align-items: center;
  padding: 10px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.hw-row b { font-family: var(--font-mono); color: var(--accent-2); font-size: 0.95em; }
.hw-row span { color: var(--text); font-size: 0.9em; }
.hw-row em { color: var(--text-3); font-size: 0.85em; font-style: normal; }

/* ---------- YouTube kanály ---------- */

.yt { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2vw, 26px); }
.yt--flat { grid-template-columns: repeat(4, 1fr); gap: 16px; }
.yt--flat .yt-item { padding: 22px 18px; min-height: 120px; justify-content: center; gap: 10px; }
.yt--flat .yt-item b { font-size: 1.15em; line-height: 1.25; }
.yt--flat .yt-item span { font-family: var(--font-mono); font-size: 0.72em; color: var(--text-3); word-break: break-all; }
.yt-group { display: flex; flex-direction: column; gap: 10px; }
.yt-item {
  display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: inherit;
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
  transition: border-color 0.2s, transform 0.15s;
}
.yt-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.yt-item b { font-family: var(--font-display); font-size: 1.02em; color: var(--text); }
.yt-item b::before { content: "▶"; color: var(--bad); font-size: 0.7em; margin-right: 8px; vertical-align: 1px; }
.yt-item span { font-size: 0.82em; color: var(--text-2); line-height: 1.45; }

/* ---------- Predplatné vs API flow ---------- */


/* ---------- Screenshot slide (DeepSWE) ---------- */
.shot {
  display: block;
  margin: 6px auto 0;
  max-width: min(900px, 100%);
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  background: #fff;
  transition: border-color 0.25s, transform 0.25s var(--ease);
}
.shot:hover { border-color: var(--accent); transform: translateY(-2px); }
.shot img { display: block; width: 100%; height: auto; max-height: 54vh; object-fit: contain; }

/* ---------- Brand link (top right) ---------- */

.brand {
  position: fixed; top: 22px; right: clamp(20px, 3vw, 40px); z-index: 60;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px 8px 10px; border-radius: 999px;
  background: rgba(22, 26, 39, 0.6); border: 1px solid var(--border);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  color: var(--text-2); text-decoration: none;
  font-family: var(--font-display); font-size: 15px; letter-spacing: 0.01em;
  transition: border-color 0.25s, color 0.25s, transform 0.25s, background 0.25s;
}
.brand:hover { color: var(--text); border-color: var(--accent); background: rgba(22, 26, 39, 0.9); transform: translateY(-1px); }
.brand-mark {
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 10px rgba(124,108,255,0.6);
}
.brand-name b { font-weight: 700; color: var(--accent); transition: color 0.25s; }
.brand:hover .brand-name b { color: var(--accent-2); }

/* ---------- Základné pojmy + slovník ---------- */

.terms { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.term {
  display: flex; flex-direction: column; gap: 6px;
  padding: 16px 18px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
}
.term b { font-family: var(--font-display); font-size: 1.05em; color: var(--accent); }
.term b small { display: block; font-family: var(--font-mono); font-size: 0.62em; font-weight: 400; color: var(--text-3); letter-spacing: 0.02em; margin-top: 2px; }
.term span { font-size: 0.84em; color: var(--text-2); line-height: 1.5; }
.terms-more { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.btn-glossary {
  appearance: none; cursor: pointer;
  font-family: var(--font-display); font-size: 1em; font-weight: 600;
  padding: 12px 22px; border-radius: 999px;
  background: var(--accent); color: #fff; border: 1px solid transparent;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}
.btn-glossary .muted { color: rgba(255,255,255,0.7); font-weight: 400; }
.btn-glossary:hover { background: #8d7fff; box-shadow: 0 6px 24px rgba(124,108,255,0.35); transform: translateY(-1px); }
.btn-glossary:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }

.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 4vh 4vw; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(5, 6, 10, 0.72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.modal-panel {
  position: relative; width: min(100%, 1040px); max-height: 92vh;
  display: flex; flex-direction: column;
  background: var(--bg-2); border: 1px solid var(--border-strong); border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  animation: modal-in 0.35s var(--ease);
}
@keyframes modal-in { from { opacity: 0; transform: translateY(16px) scale(0.98); } to { opacity: 1; transform: none; } }
.modal-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 26px 32px 18px; border-bottom: 1px solid var(--border);
}
.modal-head h2 { font-size: clamp(22px, 2.6vw, 34px); margin-top: 6px; }
.modal-head .eyebrow { font-size: 13px; }
.modal-close {
  appearance: none; cursor: pointer; flex: 0 0 auto;
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-2);
  font-size: 28px; line-height: 1; display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.modal-close:hover { background: var(--surface-2); color: var(--text); border-color: var(--border-strong); }
.modal-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.modal-body { overflow-y: auto; padding: 8px 32px 28px; overscroll-behavior: contain; }
.glossary { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px; padding-top: 12px; }
.g-item { padding: 14px 16px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); }
.g-item dt { font-family: var(--font-display); font-weight: 600; font-size: 17px; color: var(--accent); }
.g-item dd { margin: 6px 0 0; font-size: 15px; color: var(--text-2); line-height: 1.55; }
body.modal-open .deck, body.modal-open .controls, body.modal-open .brand { filter: blur(2px); }

/* ---------- Controls ---------- */

.controls {
  position: fixed; left: 0; right: 0; bottom: 0; height: var(--controls-h);
  background: rgba(11, 13, 20, 0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  z-index: 50;
  transition: transform 0.35s var(--ease), opacity 0.35s;
}
.controls.is-hidden { transform: translateY(100%); opacity: 0; pointer-events: none; visibility: hidden; transition: transform 0.35s var(--ease), opacity 0.35s, visibility 0s 0.35s; }

.progress { position: absolute; top: -1px; left: 0; right: 0; height: 3px; background: var(--border); cursor: pointer; }
.progress::before { content: ""; position: absolute; left: 0; right: 0; top: -10px; bottom: -6px; } /* väčší hitbox */
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 0.45s var(--ease); }

.controls-row {
  height: 100%; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 0 clamp(16px, 3vw, 40px);
}
.controls-left, .controls-right { display: flex; align-items: center; gap: 14px; }
.controls-right { justify-content: flex-end; }
.controls-center { display: flex; align-items: center; gap: 6px; }

.slide-title { font-size: 13px; color: var(--text-3); font-family: var(--font-mono); letter-spacing: 0.04em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 28vw; }

.btn {
  appearance: none; border: 1px solid var(--border); background: var(--surface);
  color: var(--text-2); width: 38px; height: 38px; border-radius: 10px;
  font-size: 20px; line-height: 1; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}
.btn svg { width: 16px; height: 16px; display: block; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn:hover { background: var(--surface-2); color: var(--text); border-color: var(--border-strong); }
.btn:active { transform: scale(0.94); }
.btn:disabled { opacity: 0.3; cursor: default; }
.btn--icon { font-size: 15px; }

.counter { font-family: var(--font-mono); font-size: 14px; color: var(--text-3); padding: 0 12px; min-width: 84px; text-align: center; }
.counter b { color: var(--text); font-weight: 500; font-size: 16px; }
.counter .sep { margin: 0 4px; }

.dots { display: flex; gap: 0; }
.dots .dot {
  appearance: none; border: 0; padding: 0; cursor: pointer; background: none;
  width: 24px; height: 24px; margin: 0 -6px; position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  transition: width 0.25s;
}
.dots .dot.is-active { width: 36px; }
.dots .dot::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--border-strong);
  transition: background 0.25s, width 0.25s;
}
.dots .dot:hover::before { background: var(--text-3); }
.dots .dot:focus-visible { outline: none; }
.dots .dot:focus-visible::before { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent); }
.dots .dot.is-active::before { background: var(--accent); width: 18px; border-radius: 3px; }
.dots .dot.is-section::before { background: var(--accent-2); opacity: 0.6; }
.dots .dot.is-section.is-active::before { opacity: 1; }

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .cols-3, .steps, .timeline { grid-template-columns: 1fr 1fr; }
  .terms { grid-template-columns: 1fr 1fr; }
  .glossary { grid-template-columns: 1fr; }
  .cols-2--wide-right { grid-template-columns: 1fr; }
  .nest { justify-content: flex-start; }
  .nest-ring { padding: 30px; }
  .numbered li { grid-template-columns: 36px 1fr; }
  .numbered span { grid-column: 2; }
  .cols-list { grid-template-columns: 1fr; }
  .yt { grid-template-columns: 1fr; }
  .yt--flat { grid-template-columns: 1fr 1fr; }
  .hw-row { grid-template-columns: 70px 1fr; }
  .hw-row em { grid-column: 2; }
  .mcp { grid-template-columns: 1fr; }
  .mcp-mid { min-width: 0; padding: 10px 0; }
  .mcp-net { display: none; }
  .demo-wrap { grid-template-columns: 1fr; }
  .mini-app { display: none; }
  .dots { display: none; }
}
/* H-2: nízke okno / landscape telefón — obsah nesmie byť odrezaný */
@media (max-height: 620px) {
  .slide { justify-content: flex-start; overflow-y: auto; font-size: clamp(13px, 2.4vh, 17px); padding-top: 20px; padding-bottom: 20px; gap: 12px; }
  .hero-title { font-size: clamp(36px, 10vh, 96px); }
  .section-num { font-size: clamp(40px, 12vh, 100px); }
  .section-title { font-size: clamp(32px, 9vh, 80px); }
  .bg-grid, .bg-glow { position: fixed; }
}
@media (max-width: 720px) {
  .slide { justify-content: flex-start; overflow-y: auto; font-size: 14px; }
  .cols-2, .cols-3, .cols-2--wide-left, .cols-2--wide-right, .steps, .timeline { grid-template-columns: 1fr; }
  .nest { display: none; }  /* textová alternatíva (zoznam definícií) ostáva */
  .slide-title { display: none; }
  .controls-left { display: none; }
  .controls-row { grid-template-columns: 1fr auto; gap: 8px; }
  .controls-center { justify-self: start; }
  .counter { min-width: 0; padding: 0 6px; }
  .hero-parts { flex-direction: column; }
  .terms { grid-template-columns: 1fr; }
  .modal { padding: 0; }
  .modal-panel { max-height: 100vh; border-radius: 0; }
  .modal-head, .modal-body { padding-left: 18px; padding-right: 18px; }
  .brand { top: 10px; right: 10px; font-size: 12px; padding: 5px 10px 5px 8px; }
  .slide--section { padding-top: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .slide > * { opacity: 1; transform: none; }
  .ad-line, .mini-app { opacity: 1; transform: none; }
  .bar i { width: var(--w); }
  .meter i { width: var(--w); }
  .cursor, .fake-term .spin { opacity: 1; }
}

/* ---------- Print / PDF (M-9) ---------- */
@page { size: landscape; margin: 0; }
@media print {
  html, body { height: auto; overflow: visible; background: #fff; color: #111; }
  .deck { position: static; }
  .slide {
    position: relative; inset: auto; opacity: 1 !important; visibility: visible !important; transform: none !important;
    height: 100vh; min-height: 100vh; overflow: hidden; page-break-after: always; break-after: page;
    background: var(--bg); color: var(--text); -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }
  .slide:last-child { page-break-after: auto; break-after: auto; }
  .slide > * { opacity: 1 !important; transform: none !important; transition: none !important; }
  .ad-line, .mini-app { opacity: 1 !important; transform: none !important; animation: none !important; }
  .bar i, .meter i { width: var(--w) !important; }
  .controls, .brand, .noscript-note, .sr-only, .modal { display: none !important; }
}