/* JÁ² Akademie — sdílený styl (light, čistě bílá moderní) */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg: #ffffff;          /* čistě bílé canvas */
  --bg-2: #fafaf8;        /* karty, sekce s mírným odstupem */
  --bg-3: #f4f1ea;        /* warm cream pro důrazné sekce (CTA, formula) */
  --bg-soft: #fdf9ef;     /* nejjemnější warm tint pro hero glow */
  --gold: #b8893f;        /* primary gold — kontrast na bílé */
  --gold-soft: #d4a857;   /* světlejší zlatá pro decoration */
  --gold-deep: #8a6e3d;   /* deeper gold pro hover/meta */
  --ink: #14181f;         /* primary text */
  --ink-2: #2a2e36;       /* sekundární text */
  --muted: #6c7280;       /* tertiary */
  --muted-2: #9ca3af;     /* labels */
  --line: #e5e1d6;        /* warm border */
  --line-2: #f0ebd9;      /* lighter border */
  --shadow-sm: 0 1px 2px rgba(20, 24, 31, 0.04);
  --shadow: 0 4px 16px rgba(20, 24, 31, 0.06);
  --shadow-lg: 0 12px 36px rgba(20, 24, 31, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* TYPOGRAFIE */
h1, h2, h3, h4 { font-weight: 800; letter-spacing: -0.025em; line-height: 1.12; color: var(--ink); }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); margin-bottom: 24px; font-weight: 900; }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 20px; }
h3 { font-size: 1.4rem; margin-bottom: 12px; color: var(--ink); }
h4 { font-size: 1.1rem; margin-bottom: 10px; color: var(--gold); }
p { margin-bottom: 16px; color: var(--ink-2); }
a { color: var(--gold); text-decoration: none; transition: opacity 0.2s, color 0.2s; }
a:hover { color: var(--gold-deep); }
strong { color: var(--ink); font-weight: 700; }
em { color: var(--gold-deep); font-style: italic; }
.gold { color: var(--gold); }
.muted { color: var(--muted); }
.label { text-transform: uppercase; font-size: 0.78rem; letter-spacing: 0.18em; color: var(--gold); font-weight: 600; margin-bottom: 16px; display: block; }

/* LAYOUT */
.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; margin: 0 auto; padding: 0 24px; }
.wide { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
section { padding: 80px 0; }
section + section { border-top: 1px solid var(--line-2); }

/* NAV */
nav.top {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-2);
}
.nav-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 24px; max-width: 1200px; margin: 0 auto;
  flex-wrap: wrap; gap: 16px;
}
.logo {
  font-weight: 900; letter-spacing: -0.025em; font-size: 1.2rem;
  color: var(--ink);
}
.logo:hover { color: var(--ink); }
.logo sup { color: var(--gold); font-size: 0.9em; }
.nav-links { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; }
.nav-links a {
  color: var(--ink-2); font-size: 0.93rem; font-weight: 500;
  opacity: 0.8; transition: opacity 0.2s, color 0.2s;
}
.nav-links a:hover, .nav-links a.active { opacity: 1; color: var(--gold); }

/* HERO */
.hero {
  padding: 120px 0 100px;
  background: radial-gradient(ellipse at 50% 0%, var(--bg-soft) 0%, var(--bg) 70%);
  text-align: center;
}
.hero .lede { font-size: 1.25rem; color: var(--ink-2); margin: 32px auto; max-width: 640px; }
.hero blockquote {
  font-style: italic; color: var(--gold-deep);
  font-size: 1.25rem; max-width: 560px; margin: 32px auto;
  border-left: 2px solid var(--gold); padding-left: 20px; text-align: left;
}

/* BUTTON */
.btn {
  display: inline-block; padding: 16px 32px;
  background: var(--gold); color: #ffffff;
  font-weight: 700; text-decoration: none;
  border-radius: 6px; transition: all 0.2s;
  font-size: 1rem; letter-spacing: -0.01em;
  border: none; cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.btn:hover {
  background: var(--gold-deep); color: #ffffff;
  transform: translateY(-1px); box-shadow: var(--shadow);
}
.btn-ghost {
  background: transparent; color: var(--gold); border: 1.5px solid var(--gold);
  padding: 14px 28px; box-shadow: none;
}
.btn-ghost:hover { background: var(--gold); color: #ffffff; }
.btn-small { padding: 10px 20px; font-size: 0.92rem; }

/* CARDS */
.card {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 32px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.card.featured {
  border-color: var(--gold);
  background: linear-gradient(180deg, var(--bg-3) 0%, var(--bg-2) 100%);
  box-shadow: var(--shadow);
}

/* GRID */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

/* QUOTE BOX */
blockquote.quote {
  background: var(--bg-2); border-left: 3px solid var(--gold);
  padding: 24px 28px; border-radius: 6px; margin: 24px 0;
  font-style: italic; font-size: 1.05rem; color: var(--ink-2);
}
blockquote.quote .who {
  display: block; margin-top: 12px; color: var(--gold-deep);
  font-size: 0.9rem; font-style: normal; font-weight: 600;
}

/* PILLARS */
.pillar {
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 32px; border-radius: 10px;
  border-top: 3px solid var(--gold);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.pillar:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.pillar h3 { margin-bottom: 14px; color: var(--ink); }
.pillar .num { font-size: 0.85rem; color: var(--muted); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 8px; display: block; }
.pillar p { color: var(--ink-2); margin: 0; }

/* FORMULA */
.formula {
  text-align: center; padding: 48px 24px;
  background: linear-gradient(135deg, var(--bg-3) 0%, var(--bg-2) 100%);
  border: 1px solid var(--gold); border-radius: 10px;
  margin: 32px 0;
  box-shadow: var(--shadow);
}
.formula .eq {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 900; letter-spacing: -0.025em;
  color: var(--ink);
}
.formula .eq .gold { color: var(--gold); }
.formula .eq .op { color: var(--muted); margin: 0 12px; }

/* LISTS */
ul.clean { list-style: none; padding: 0; }
ul.clean li {
  padding: 12px 0 12px 28px; position: relative;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-2);
}
ul.clean li:last-child { border-bottom: none; }
ul.clean li::before {
  content: "→"; color: var(--gold);
  position: absolute; left: 0; font-weight: 700;
}

ul.numbered { list-style: none; padding: 0; counter-reset: num; }
ul.numbered li {
  padding: 16px 0 16px 56px; position: relative;
  border-bottom: 1px solid var(--line-2);
  counter-increment: num;
  color: var(--ink-2);
}
ul.numbered li::before {
  content: counter(num, decimal-leading-zero);
  position: absolute; left: 0; top: 16px;
  color: var(--gold); font-weight: 800; font-size: 1.4rem;
  font-family: "SF Mono", Menlo, monospace;
}

/* PERSONAS */
.persona {
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 28px; border-radius: 10px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.persona h3 { color: var(--ink); margin-bottom: 8px; }
.persona .tagline { color: var(--gold-deep); font-style: italic; margin-bottom: 16px; font-size: 0.95rem; }
.persona .desc { color: var(--ink-2); margin-bottom: 12px; }
.persona .pain { color: var(--muted); font-size: 0.92rem; padding-left: 16px; border-left: 2px solid var(--line); }
.persona.future { opacity: 0.6; }
.persona.future::after {
  content: "Brzy"; display: inline-block; margin-left: 8px;
  padding: 2px 10px; background: var(--bg-3); color: var(--gold-deep);
  font-size: 0.7rem; letter-spacing: 0.1em; border-radius: 999px;
  vertical-align: middle; font-weight: 600;
}

/* FAQ */
details {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 8px; padding: 18px 24px; margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
details:hover { border-color: var(--gold-soft); }
details[open] { border-color: var(--gold); box-shadow: var(--shadow-sm); }
summary {
  font-weight: 600; color: var(--ink);
  list-style: none; outline: none;
  font-size: 1.05rem;
}
summary::after { content: "+"; float: right; color: var(--gold); font-size: 1.4rem; line-height: 1; font-weight: 700; }
details[open] summary::after { content: "−"; }
details > p, details > ul { margin-top: 16px; color: var(--ink-2); }
details > ul { padding-left: 20px; }

/* MANIFESTO */
.manifesto {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--ink-2);
}
.manifesto ol { padding-left: 0; list-style: none; counter-reset: man; }
.manifesto ol li {
  padding: 18px 0 18px 64px; position: relative;
  counter-increment: man;
  border-bottom: 1px solid var(--line-2);
}
.manifesto ol li:last-child { border-bottom: none; }
.manifesto ol li::before {
  content: counter(man);
  position: absolute; left: 0; top: 18px;
  color: var(--gold); font-weight: 800;
  font-size: 1.6rem;
  font-family: "SF Mono", Menlo, monospace;
}

/* PRICING / CESTY */
.cesty { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin: 32px 0; }
.cesta {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 32px 28px;
  display: flex; flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.cesta:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.cesta.featured {
  border-color: var(--gold);
  background: linear-gradient(180deg, var(--bg-3) 0%, var(--bg-2) 100%);
  box-shadow: var(--shadow);
  transform: scale(1.02);
}
.cesta.featured:hover { transform: scale(1.02) translateY(-2px); }
.cesta .badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #ffffff;
  padding: 5px 16px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.cesta h3 { color: var(--ink); font-size: 1.4rem; margin-bottom: 6px; }
.cesta .subtitle { color: var(--gold-deep); font-size: 0.92rem; margin-bottom: 20px; font-style: italic; }
.cesta .price-old { text-decoration: line-through; color: var(--muted); font-size: 1rem; }
.cesta .price { font-size: 2rem; font-weight: 800; color: var(--gold); margin: 4px 0; }
.cesta .price-vat { color: var(--muted); font-size: 0.85rem; margin-bottom: 24px; }
.cesta ul { list-style: none; margin: 0 0 28px; flex: 1; }
.cesta li { padding: 7px 0; padding-left: 24px; position: relative; font-size: 0.95rem; color: var(--ink-2); }
.cesta li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.cesta .btn { width: 100%; text-align: center; }

/* TWO WORLDS */
.worlds { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; margin: 32px 0; }
.world {
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 32px 28px; border-radius: 10px;
  box-shadow: var(--shadow-sm);
}
.world h3 { color: var(--gold); margin-bottom: 14px; }
.world ul.clean li::before { content: "·"; font-size: 1.4rem; line-height: 0; top: 24px; }
.worlds-bridge {
  font-size: 2.4rem; color: var(--gold);
  text-align: center; font-weight: 800;
}
@media (max-width: 720px) {
  .worlds { grid-template-columns: 1fr; }
  .worlds-bridge { padding: 8px 0; }
}

/* AGENT GRID — pro Pilíř Systém */
.agents { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 32px 0; }
.agent {
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 18px 20px; border-radius: 8px;
  transition: border-color 0.2s, transform 0.2s;
  display: flex; flex-direction: column; gap: 6px;
}
.agent:hover { border-color: var(--gold-soft); transform: translateY(-1px); }
.agent .agent-role { font-weight: 700; color: var(--ink); font-size: 0.95rem; }
.agent .agent-task { font-size: 0.85rem; color: var(--muted); }
.agent .agent-icon { color: var(--gold); font-size: 1.2rem; line-height: 1; }

/* SCREENSHOT PLACEHOLDER */
.screenshot-placeholder {
  background: linear-gradient(135deg, var(--bg-3) 0%, var(--bg-2) 100%);
  border: 2px dashed var(--gold-soft);
  border-radius: 12px;
  padding: 80px 32px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 32px 0;
}
.screenshot-placeholder .icon { font-size: 2.4rem; color: var(--gold); margin-bottom: 12px; display: block; }

/* PILLAR DEEP — pro velké sekce na sales page */
.pillar-deep {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 56px 40px;
  margin: 32px 0;
  box-shadow: var(--shadow-sm);
}
.pillar-deep.energie {
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-2) 100%);
  border-top: 4px solid var(--gold);
}
.pillar-deep.system {
  background: linear-gradient(180deg, var(--bg-2) 0%, #f8f7f3 100%);
  border-top: 4px solid var(--gold);
}
.pillar-deep .pillar-label {
  display: inline-block;
  background: var(--gold); color: #ffffff;
  padding: 6px 16px; border-radius: 999px;
  font-size: 0.76rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  margin-bottom: 20px;
}
.pillar-deep h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 20px; }

/* TESTIMONIALS */
.testimonial {
  background: var(--bg-2); border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  padding: 28px 32px; border-radius: 8px;
  margin: 24px 0;
}
.testimonial .quote-text {
  font-size: 1.1rem; font-style: italic; color: var(--ink-2);
  margin-bottom: 16px; line-height: 1.6;
}
.testimonial .author {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.9rem;
}
.testimonial .author-name { color: var(--ink); font-weight: 700; }
.testimonial .author-role { color: var(--muted); }

/* FOOTER */
footer {
  padding: 60px 24px 40px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted); font-size: 0.9rem;
  background: var(--bg-2);
}
footer .footer-nav { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; margin-bottom: 24px; }
footer a { color: var(--ink-2); opacity: 0.8; }
footer a:hover { opacity: 1; color: var(--gold); }

/* TABLE */
table.compare {
  width: 100%; border-collapse: collapse;
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  margin: 32px 0;
  background: var(--bg-2);
}
table.compare th, table.compare td {
  padding: 16px 20px; text-align: left;
  border-bottom: 1px solid var(--line-2);
}
table.compare th { background: var(--bg-3); color: var(--ink); font-weight: 700; }
table.compare td { color: var(--ink-2); }
table.compare tr:last-child td { border-bottom: none; }

/* FORMULÁŘ */
.form-section {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 36px 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.form-section .step {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 8px;
}
.form-section h2 { font-size: 1.4rem; margin-bottom: 24px; }

.field {
  margin-bottom: 24px;
}
.field label.field-label {
  display: block;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  font-size: 1rem;
}
.field .help {
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 6px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184, 137, 63, 0.12);
}
textarea { min-height: 120px; resize: vertical; }

.options {
  display: flex; flex-direction: column; gap: 8px;
}
.options.horizontal { flex-direction: row; flex-wrap: wrap; gap: 10px; }

.option {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.option:hover { border-color: var(--gold-soft); background: var(--bg-soft); }
.option input[type="radio"],
.option input[type="checkbox"] {
  accent-color: var(--gold);
  width: 18px; height: 18px;
  flex-shrink: 0;
}
.option input:checked + span { color: var(--ink); font-weight: 600; }
.option:has(input:checked) { border-color: var(--gold); background: var(--bg-soft); }

.scale {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 6px;
  margin-top: 8px;
}
.scale label {
  text-align: center;
  padding: 14px 0;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink-2);
  transition: all 0.15s;
}
.scale label:hover { border-color: var(--gold-soft); }
.scale input[type="radio"] { display: none; }
.scale label:has(input:checked) { background: var(--gold); color: #ffffff; border-color: var(--gold); }
.scale-meta { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--muted); margin-top: 8px; }

.form-submit {
  text-align: center;
  margin-top: 32px;
}
.form-submit .btn { padding: 18px 40px; font-size: 1.05rem; }
.form-meta { font-size: 0.88rem; color: var(--muted); margin-top: 14px; }

.progress-banner {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 20px;
  margin-bottom: 24px;
  text-align: center;
  color: var(--ink-2);
  font-size: 0.95rem;
}

/* RESPONSIVE */
@media (max-width: 720px) {
  section { padding: 60px 0; }
  .hero { padding: 80px 0 60px; }
  .nav-links { gap: 14px; font-size: 0.85rem; }
  .nav-links a { font-size: 0.85rem; }
  .pillar-deep { padding: 36px 24px; }
  .form-section { padding: 28px 22px; }
  .scale { grid-template-columns: repeat(5, 1fr); }
}