@font-face {
  font-family: "Bricolage Grotesque";
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 75% 100%;
  font-display: swap;
  src: url("fonts/bricolage-grotesque-latin.woff2") format("woff2");
}

:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --surface: #f3f3f4;
  --ink: #18181b;
  --ink-2: #55555c;
  --rule: #e3e3e6;
  --amber: #ff9a2e;
  --amber-ink: #b4580a;
  --panel: #18181b;
  --panel-ink: #f2f2f3;
  --panel-ink-2: #a6a6ad;
  --panel-rule: #2c2c31;
  --arc-opacity: 0.9;

  --display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --gutter: 16px;
  --measure: 66ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18181b;
    --surface: #222226;
    --ink: #f2f2f3;
    --ink-2: #a6a6ad;
    --rule: #303035;
    --amber-ink: #ffa94d;
    --panel: #232327;
    --panel-rule: #34343a;
    --arc-opacity: 1;
  }
}

@media (min-width: 640px) {
  :root { --gutter: 32px; }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--amber-ink); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--amber-ink);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }

.wrap {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Hlavička a patička jsou stejné na všech stránkách. */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 650;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand img { width: 34px; height: 34px; }

.site-nav { display: flex; gap: 24px; }

.site-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.9375rem;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--ink); }

.site-footer {
  margin-top: 96px;
  padding-block: 32px 48px;
  border-top: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 0.875rem;
}

.site-footer .wrap {
  display: grid;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a { color: var(--ink); text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }

.disclaimer { max-width: var(--measure); }

/* Úvod. Vlny přesahují pás úvodu, oříznou se na jeho hranách. */

.hero-band { overflow: clip; padding-bottom: 40px; }

.hero {
  display: grid;
  gap: 56px;
  align-items: center;
  padding-block: 40px 24px;
}

@media (min-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
    padding-block: 72px 48px;
  }
}

.hero h1 {
  font-size: clamp(3rem, 1.6rem + 6.4vw, 6.25rem);
  font-weight: 760;
  font-stretch: 82%;
  line-height: 0.94;
  letter-spacing: -0.025em;
}

.lede {
  margin-top: 28px;
  max-width: 34em;
  font-size: 1.1875rem;
  line-height: 1.5;
  color: var(--ink-2);
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
  padding: 12px 20px 12px 14px;
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.9375rem;
  line-height: 1.3;
}

.availability-dot {
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 3px solid var(--amber);
}
.availability strong { display: block; font-weight: 600; color: var(--ink); }
.availability span { color: var(--ink-2); }

/* Ilustrace Inboxu: panel s videi hraje roli kruhu s tlačítkem přehrávání z ikony
   a vlny ve stejných poměrech jako v ikoně vychází z jeho pravého horního rohu.
   Rozměry ve viewBoxu odpovídají pixelům při --s: 1. */

.signal {
  --s: 0.62;
  position: relative;
  width: min(100% - 48px, 420px);
  padding-top: calc(210px * var(--s));
}

@media (min-width: 600px) {
  .signal { --s: 0.8; }
}

@media (min-width: 960px) {
  .signal { width: min(100%, 420px); }
}

@media (min-width: 1440px) {
  .signal { --s: 1; }
}

.signal-mark {
  position: absolute;
  width: calc(296px * var(--s));
  height: calc(296px * var(--s));
  left: calc(100% - 86px * var(--s));
  top: 0;
  max-width: none;
  color: var(--amber);
  opacity: var(--arc-opacity);
  pointer-events: none;
}

.signal-mark .arc {
  fill: none;
  stroke: currentColor;
  stroke-width: 44;
  stroke-linecap: round;
}

.inbox {
  position: relative;
  margin: 0;
  border-radius: 22px;
  background: var(--panel);
  color: var(--panel-ink);
  box-shadow: 0 1px 0 rgb(255 255 255 / 0.06) inset, 0 30px 60px -30px rgb(24 24 27 / 0.55);
  overflow: hidden;
}

.inbox-bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 18px 20px 12px;
}

.inbox-title {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 700;
}

.inbox-count { color: var(--panel-ink-2); font-size: 0.8125rem; }

.feed { margin: 0; padding: 0 0 8px; list-style: none; }

.video {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 10px 20px;
  border-top: 1px solid var(--panel-rule);
}

.thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
}

.thumb::after {
  content: attr(data-duration);
  position: absolute;
  right: 5px;
  bottom: 5px;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgb(0 0 0 / 0.72);
  color: #fff;
  font-size: 0.6875rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
}

.t1 { background: radial-gradient(120% 90% at 80% 10%, #f6c56f 0 18%, transparent 19%), linear-gradient(170deg, #2f4a6e, #1c2333 70%); }
.t2 { background: linear-gradient(105deg, transparent 54%, #c98d55 55% 63%, transparent 64%), linear-gradient(160deg, #8a6a4c, #3d2f24); }
.t3 { background: radial-gradient(60% 60% at 35% 60%, #f4f1ea 0 30%, transparent 31%), linear-gradient(140deg, #d9573f, #8f2d2a); }
.t4 { background: radial-gradient(circle at 70% 40%, #ffffff 0 2%, transparent 3%), radial-gradient(circle at 25% 70%, #ffffff 0 1.5%, transparent 2.5%), linear-gradient(180deg, #121a3a, #3b2a6b); }
.t5 { background: repeating-linear-gradient(100deg, rgb(255 255 255 / 0.12) 0 2px, transparent 2px 9px), linear-gradient(160deg, #567a6a, #23352f); }

.video-text { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px; min-width: 0; }

.video-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.8125rem;
}

.video-channel { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.video-time { flex: none; color: var(--panel-ink-2); font-variant-numeric: tabular-nums; }

@media (min-width: 600px) {
  .video { grid-template-columns: 112px minmax(0, 1fr); }
}

.video-title {
  font-size: 0.9375rem;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Jediný pohyb na stránce: vlny se rozvlní a nahoru přibude nové video. */

@media (prefers-reduced-motion: no-preference) {
  .signal-mark .arc {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    animation: draw 0.7s cubic-bezier(0.3, 0, 0.2, 1) forwards;
  }

  .signal-mark .arc-outer { animation-delay: 0.25s; }

  .video.arriving {
    display: grid;
    animation: arrive 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) 1.05s both;
  }

  .video.arriving > * { animation: settle 0.55s ease-out 1.05s both; }

  .video.arriving .video-time { animation: glow 2.4s ease-out 1.3s both; }
}

@keyframes draw {
  from { opacity: 0; }
  8% { opacity: 1; }
  to { stroke-dashoffset: 0; opacity: 1; }
}

@keyframes arrive {
  from { max-height: 0; padding-block: 0; border-top-color: transparent; }
  to { max-height: 120px; }
}

@keyframes settle {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: none; }
}

@keyframes glow {
  from { color: var(--amber); }
  70% { color: var(--amber); }
  to { color: var(--panel-ink-2); }
}

/* Sekce pod úvodem */

.section { margin-top: 120px; }

.section > h2,
.section-head h2 {
  font-size: clamp(1.875rem, 1.4rem + 1.6vw, 2.5rem);
  max-width: 18em;
}

.section-intro {
  margin-top: 14px;
  max-width: 36em;
  color: var(--ink-2);
}

.steps {
  display: grid;
  gap: 32px;
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

@media (min-width: 800px) {
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
}

.steps li { counter-increment: step; }

.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--amber);
  color: #18181b;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.0625rem;
}

.steps h3 { font-size: 1.3125rem; }
.steps p { margin-top: 8px; color: var(--ink-2); max-width: 30em; }

.plans {
  display: grid;
  margin-top: 48px;
  border-top: 2px solid var(--ink);
}

@media (min-width: 800px) {
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan + .plan { border-left: 1px solid var(--rule); padding-left: 40px; }
  .plan:first-child { padding-right: 40px; }
}

.plan { padding-block: 28px 8px; }
.plan + .plan { border-top: 1px solid var(--rule); }

@media (min-width: 800px) {
  .plan + .plan { border-top: 0; }
}

.plan h3 { font-size: 1.75rem; }
.plan-sub { margin-top: 6px; color: var(--ink-2); }

.plan ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.plan li {
  position: relative;
  padding-left: 26px;
}

.plan li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--amber-ink);
}

.plan-pro li::before { background: var(--amber-ink); }

.plan-note {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.promise {
  display: grid;
  gap: 16px;
  padding: 40px 0 0;
  border-top: 1px solid var(--rule);
}

@media (min-width: 800px) {
  .promise { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 40px; }
}

.promise h2 { font-size: clamp(1.625rem, 1.3rem + 1.1vw, 2.125rem); }
.promise p { color: var(--ink-2); max-width: 36em; }
.promise p + p { margin-top: 12px; }

/* Právní stránky a podpora */

.doc {
  max-width: var(--measure);
  padding-block: 48px 0;
}

.doc h1 {
  font-size: clamp(2.25rem, 1.6rem + 2.6vw, 3.5rem);
  font-weight: 740;
  font-stretch: 86%;
  line-height: 1;
}

.doc .updated {
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.doc .summary {
  margin-top: 32px;
  padding: 20px 22px;
  border-radius: 14px;
  background: var(--surface);
}

.doc h2 {
  margin-top: 48px;
  font-size: 1.5rem;
}

.doc h3 {
  margin-top: 28px;
  font-size: 1.1875rem;
}

.doc p,
.doc ul { margin-top: 12px; }

.doc ul { padding-left: 1.25em; }
.doc li + li { margin-top: 6px; }

.faq { margin-top: 8px; }

.faq details {
  border-bottom: 1px solid var(--rule);
}

.faq summary {
  cursor: pointer;
  padding-block: 18px;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  flex: none;
  color: var(--amber-ink);
  font-family: var(--display);
  font-size: 1.375rem;
  line-height: 1;
}

.faq details[open] summary::after { content: "\2212"; }

.faq details > p { margin: 0 0 18px; color: var(--ink-2); }

.contact {
  margin-top: 40px;
  padding: 24px;
  border-radius: 16px;
  background: var(--panel);
  color: var(--panel-ink);
}

.contact h2 { margin-top: 0; font-size: 1.375rem; }
.contact p { color: var(--panel-ink-2); }
.contact a { color: var(--amber); font-weight: 600; }

.not-found {
  padding-block: 96px 0;
  max-width: var(--measure);
}

.not-found h1 { font-size: clamp(2.5rem, 1.8rem + 3vw, 4rem); font-stretch: 84%; }
.not-found p { margin-top: 16px; color: var(--ink-2); }