/* odhlucnenibytu.cz – statický web bez frameworku */

@font-face {
  font-family: "Urbanist";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/urbanist-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Urbanist";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/urbanist-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Epilogue";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/epilogue-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Epilogue";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/epilogue-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #f8f9fb;
  --fg: #1b2433;
  --muted: #5d6676;
  --card: #fff;
  --soft: #eceff4;
  --border: #dde2ea;
  --primary: #284f7d;
  --primary-fg: #f8f9fb;
  --accent: #d79a3f;
  --accent-ink: #a8711f;
  --night: #172131;
  --night-fg: #f1f3f6;
  --radius: 1.5rem;
  --shadow: 0 1px 2px rgb(23 33 49 / 6%), 0 26px 60px -42px rgb(23 33 49 / 42%);
  --font-display: "Urbanist", system-ui, sans-serif;
  --font-body: "Epilogue", system-ui, sans-serif;
  --wrap: 72rem;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0;
  font-weight: 650;
}
p { margin: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }
.skip {
  position: absolute; left: -999px; top: 0.5rem; z-index: 100;
  background: var(--fg); color: #fff; padding: 0.5rem 1rem; border-radius: 0.5rem;
}
.skip:focus { left: 0.5rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; padding: 0.9rem 1.75rem;
  font-weight: 600; font-size: 0.9rem; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.2s, background-color 0.2s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-accent { background: var(--accent); color: var(--night); }
.btn-ghost { border-color: rgb(241 243 246 / 30%); color: var(--night-fg); }
.btn-ghost:hover { background: rgb(241 243 246 / 10%); }
.btn-sm { padding: 0.6rem 1.2rem; font-size: 0.85rem; }

/* Header */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgb(248 249 251 / 85%);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; height: 4rem; }
.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; font-family: var(--font-display); font-weight: 700; }
.logo::before { content: ""; width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--accent); }
.nav { display: none; gap: 2rem; }
.nav a { text-decoration: none; color: var(--muted); font-size: 0.9rem; }
.nav a:hover { color: var(--fg); }
@media (min-width: 52rem) { .nav { display: flex; } }

/* Hero */
.hero { background: var(--night); color: var(--night-fg); }
.hero-grid { display: grid; gap: 3rem; align-items: center; padding-top: 4.5rem; padding-bottom: 3.5rem; }
@media (min-width: 64rem) { .hero-grid { grid-template-columns: 1fr 0.95fr; gap: 4rem; padding-top: 6.5rem; padding-bottom: 5rem; } }
.pill {
  display: inline-block; border: 1px solid rgb(241 243 246 / 22%); border-radius: 999px;
  padding: 0.35rem 1rem; font-size: 0.72rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.18em; color: rgb(241 243 246 / 72%);
}
.hero h1 { margin-top: 1.6rem; font-size: clamp(2.3rem, 5.2vw, 3.8rem); }
.hero .lead { margin-top: 1.5rem; max-width: 34rem; font-size: 1.12rem; line-height: 1.7; color: rgb(241 243 246 / 78%); }
.hero .actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-media {
  position: relative; overflow: hidden; border-radius: 2rem;
  border: 1px solid rgb(241 243 246 / 15%); box-shadow: var(--shadow);
}
.hero-media img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgb(23 33 49 / 50%), transparent 55%);
}
.stats { display: grid; gap: 1.5rem; border-top: 1px solid rgb(241 243 246 / 15%); padding-top: 2rem; padding-bottom: 3.5rem; margin: 0; }
@media (min-width: 40rem) { .stats { grid-template-columns: repeat(3, 1fr); } }
.stats dt { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.18em; color: rgb(241 243 246 / 55%); }
.stats dd { margin: 0.4rem 0 0; font-family: var(--font-display); font-size: 1.5rem; font-weight: 650; }

/* Sections */
.section { padding: 6rem 0; scroll-margin-top: 4rem; }
.section-alt { background: var(--soft); }
.eyebrow { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-ink); }
.head { max-width: 42rem; }
.head h2 { margin-top: 1rem; font-size: clamp(1.9rem, 3.6vw, 2.5rem); }
.head .lead { margin-top: 1.2rem; font-size: 1.1rem; line-height: 1.7; color: var(--muted); }

.cards { display: grid; gap: 1.5rem; margin-top: 3.5rem; }
@media (min-width: 48rem) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem;
}
.card .num { font-family: var(--font-display); font-weight: 650; font-size: 0.9rem; color: var(--accent-ink); }
.card h3 { margin-top: 1.1rem; font-size: 1.15rem; }
.card p { margin-top: 0.7rem; font-size: 0.93rem; color: var(--muted); }

.callout {
  margin-top: 2.5rem; padding: 1.5rem 1.75rem; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--accent);
  max-width: 48rem; color: var(--muted); font-size: 0.97rem;
}
.callout strong { color: var(--fg); }

.split { display: grid; gap: 3.5rem; align-items: center; }
@media (min-width: 64rem) { .split { grid-template-columns: 1fr 1fr; } }
.checks { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 0.9rem; }
.checks li { display: flex; gap: 0.75rem; color: rgb(27 36 51 / 85%); }
.checks svg { flex: none; width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; color: var(--accent); }
.media { overflow: hidden; border-radius: 2rem; border: 1px solid var(--border); background: var(--card); box-shadow: var(--shadow); }
.media img { width: 100%; object-fit: cover; }
.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 1.5rem 0 0; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--border); background: var(--border); }
.specs div { background: var(--card); padding: 1.3rem 1.5rem; }
.specs dt { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); }
.specs dd { margin: 0.35rem 0 0; font-weight: 600; font-size: 0.93rem; }

/* Layers diagram */
.layers { margin-top: 3.5rem; display: grid; gap: 0.75rem; }
@media (min-width: 48rem) { .layers { grid-template-columns: repeat(4, 1fr); } }
.layer { border-radius: 1rem; padding: 1.2rem 1.3rem; border: 1px solid var(--border); background: var(--card); }
.layer b { display: block; font-family: var(--font-display); font-size: 1rem; }
.layer span { display: block; margin-top: 0.35rem; font-size: 0.86rem; color: var(--muted); }
.layer.l1 { background: #e3e6eb; }
.layer.l2 { background: #fbeedb; border-color: #f0d6ad; }
.layer.l3 { background: #e7edf5; }

/* Steps */
.steps-grid { display: grid; gap: 3rem; margin-top: 4rem; }
@media (min-width: 64rem) { .steps-grid { grid-template-columns: 1.05fr 0.95fr; } }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 2rem; counter-reset: step; }
.steps li { position: relative; padding-left: 3rem; }
.steps li::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0; width: 2rem; height: 2rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--card);
  font-family: var(--font-display); font-size: 0.7rem; font-weight: 650; color: var(--accent-ink);
}
.steps li:not(:last-child)::after {
  content: ""; position: absolute; left: 1rem; top: 2.25rem; bottom: -1.75rem; width: 1px; background: var(--border);
}
.steps h3 { padding-top: 0.2rem; font-size: 1.05rem; }
.steps p { margin-top: 0.45rem; font-size: 0.93rem; color: var(--muted); }
.aside { display: grid; gap: 1.5rem; align-content: start; }
.link-card { display: block; text-decoration: none; transition: background-color 0.2s; }
.link-card:hover { background: #fdf6eb; }
.link-card .more { display: inline-block; margin-top: 0.9rem; font-weight: 600; font-size: 0.9rem; color: var(--accent-ink); }

/* FAQ */
.faq { margin-top: 3rem; display: grid; gap: 0.75rem; max-width: 48rem; }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 1.1rem; padding: 0 1.4rem; }
.faq summary {
  cursor: pointer; list-style: none; padding: 1.15rem 2rem 1.15rem 0; position: relative;
  font-family: var(--font-display); font-weight: 650; font-size: 1.05rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 1rem; font-size: 1.3rem; color: var(--accent-ink); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 1.2rem; color: var(--muted); font-size: 0.95rem; }

/* Contact */
.contact { display: grid; gap: 3.5rem; }
@media (min-width: 64rem) { .contact { grid-template-columns: 0.85fr 1.15fr; } }
.form { background: var(--card); border: 1px solid var(--border); border-radius: 2rem; padding: 2rem; box-shadow: var(--shadow); }
.form .row { display: grid; gap: 1.2rem; }
@media (min-width: 40rem) { .form .row { grid-template-columns: 1fr 1fr; } }
.form label { display: block; font-size: 0.88rem; font-weight: 500; margin-top: 1.2rem; }
.form .row label { margin-top: 0; }
.form input, .form textarea {
  display: block; width: 100%; margin-top: 0.5rem; padding: 0.8rem 1rem;
  border: 1px solid var(--border); border-radius: 0.8rem; background: var(--bg);
  font: inherit; font-size: 0.93rem; color: var(--fg);
}
.form textarea { resize: vertical; min-height: 7rem; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgb(40 79 125 / 12%); }
.form .btn { width: 100%; margin-top: 1.75rem; }
.form .note { margin-top: 1rem; font-size: 0.8rem; color: var(--muted); }
.hp { position: absolute; left: -9999px; }
.form-status { margin-top: 1rem; font-size: 0.93rem; }
.form-status.ok { color: #1f7a4a; }
.form-status.err { color: #b3261e; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 2.5rem 0; font-size: 0.88rem; color: var(--muted); }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; justify-content: space-between; }

/* Motion */
@media (prefers-reduced-motion: no-preference) {
  .fade { animation: fade-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) both; }
  .d1 { animation-delay: 80ms; } .d2 { animation-delay: 160ms; } .d3 { animation-delay: 240ms; }
  @keyframes fade-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn:hover { transform: none; } }