/* ==========================================================================
   JELÍNEK — Návody pro vibecodery
   Společné styly pro všechny stránky.
   --------------------------------------------------------------------------
   JAK EDITOVAT:
   - Barvy a rozměry jsou definované jako CSS proměnné v :root níže.
     Změna proměnné se projeví na celém webu.
   - Názvy tokenů odpovídají UI guidu (Clrs): PRIM-BROWN, TEXT-MUTED1 apod.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1) FONTY
   Nahrajte soubory .woff2 do složky assets/fonts/ s názvy uvedenými níže.
   Dokud soubory chybí, prohlížeč automaticky použije fallback (Arial/Georgia).
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "GT Walsheim Pro";
  src: url("../fonts/GT-Walsheim-Pro-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "GT Walsheim Pro";
  src: url("../fonts/GT-Walsheim-Pro-Medium.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "GT Walsheim Pro";
  src: url("../fonts/GT-Walsheim-Pro-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "GT Walsheim Pro";
  src: url("../fonts/GT-Walsheim-Pro-Black.woff2") format("woff2");
  font-weight: 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Avenir Next LT Pro";
  src: url("../fonts/AvenirNextLTPro-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Avenir Next LT Pro";
  src: url("../fonts/AvenirNextLTPro-Demi.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Avenir Next LT Pro";
  src: url("../fonts/AvenirNextLTPro-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Archer";
  src: url("../fonts/Archer-Book.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Archer";
  src: url("../fonts/Archer-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

/* --------------------------------------------------------------------------
   2) DESIGN TOKENY  (zdroj: UI guide — Clrs)
   -------------------------------------------------------------------------- */
:root {
  /* Primární barvy */
  --prim-brown:            #C99E75;  /* PRIM-BROWN   — divize Nábytek   */
  --prim-magenta:          #EC008C;  /* PRIM-MAGENTA — divize Zdravý spánek */

  /* Hover / highlight */
  --highlight-prim-brown:  #E2CBB6;  /* HIGHLIGHT-PRIM-BROWN   */
  --highlight-light-magenta:#FF66C1; /* HIGHLIGHT-LIGHT-MAGENTA */

  /* Pozadí */
  --bg-white:              #FFFFFF;  /* BG-WHITE        */
  --bg-light:              #FAFAFA;  /* BG-LIGHT        */
  --bg-light-brown:        #FBF7F4;  /* BG-LIGHT-BROWN  */
  --bg-light-magenta:      #FFF5FB;  /* BG-LIGHT-MAGENTA */
  --bg-black:              #000000;  /* BG-BLACK        */

  /* Text */
  --text-black:            #0D0D0D;  /* TEXT-BLACK  */
  --text-muted1:           #606060;  /* TEXT-MUTED1 */
  --text-muted2:           #9F9F9F;  /* TEXT-MUTED2 */
  --text-light:            #F2F2F2;  /* TEXT-LIGHT  */
  --text-white:            #FFFFFF;  /* TEXT-WHITE  */

  /* Sémantické barvy (pozadí hlášek) */
  --sem-success:           #E7F0D5;
  --sem-error:             #FFCAC3;
  --sem-warning:           #F6E9C5;
  --sem-info:              #E8EFED;
  --sem-success-strong:    #16A34A;  /* např. tag „Skladem“ */

  /* Rádiusy (zdroj: UI guide) */
  --radius-button:  8px;
  --radius-image:   clamp(10px, 0.8vw, 16px);
  --radius-card:    clamp(12px, 1vw, 20px);
  --radius-section: clamp(24px, 3vw, 48px);
  --radius-pill:    9999px;

  /* Stín interaktivních prvků (zdroj: UI guide) */
  --shadow-interactive: 0px 4px 4px #00000030, 0px 12px 12px #00000015;

  /* Písma */
  --font-primary: "GT Walsheim Pro", Arial, Helvetica, sans-serif;
  --font-secondary: "Avenir Next LT Pro", Arial, Helvetica, sans-serif;
  --font-serif: "Archer", Georgia, "Times New Roman", serif;

  /* Layout */
  --page-max: 1180px;
}

/* --------------------------------------------------------------------------
   3) ZÁKLAD
   -------------------------------------------------------------------------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-white);
  color: var(--text-black);
  font-family: var(--font-primary);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--prim-brown); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--page-max); margin: 0 auto; padding: 0 24px; }

/* --------------------------------------------------------------------------
   4) TYPOGRAFIE
   Hierarchie: eyebrow (perex nad nadpisem) → H1 → H2 → H3 → Sub → text
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 { font-family: var(--font-primary); line-height: 1.15; margin: 0 0 0.4em; }
h1 { font-weight: 900; font-size: clamp(2rem, 4.5vw, 3.1rem); letter-spacing: -0.01em; }
h2 { font-weight: 700; font-size: clamp(1.45rem, 2.6vw, 1.9rem); }
h3 { font-weight: 700; font-size: 1.2rem; }
p  { margin: 0 0 1em; }
.muted  { color: var(--text-muted1); }
.muted2 { color: var(--text-muted2); }
.serif  { font-family: var(--font-serif); }
.small  { font-size: 0.85rem; }

/* Eyebrow — krátký barevný perex nad nadpisem (vzor z prezentací) */
.eyebrow {
  font-weight: 700;
  color: var(--prim-brown);
  margin: 0 0 0.35em;
  font-size: 1.05rem;
}
.eyebrow--magenta { color: var(--prim-magenta); }

/* Krátká linka pod nadpisem (vzor z prezentací) */
.rule {
  width: 88px; height: 3px; border: 0; border-radius: 2px;
  background: var(--prim-brown); margin: 18px 0 26px;
}
.rule--magenta { background: var(--prim-magenta); }
.rule--white   { background: var(--text-white); }

/* --------------------------------------------------------------------------
   5) HLAVIČKA A NAVIGACE
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #EFE9E3;
}
.site-header__inner {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 24px; max-width: var(--page-max); margin: 0 auto;
}
.site-header__logo img { width: 46px; height: 46px; border-radius: 10px; }
.site-header__title { font-weight: 700; font-size: 1.02rem; line-height: 1.2; }
.site-header__title span { display: block; font-weight: 400; font-size: 0.78rem; color: var(--text-muted1); }
.site-header__nav { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.site-header__nav a {
  color: var(--text-black); font-weight: 500; font-size: 0.95rem;
  padding: 8px 14px; border-radius: var(--radius-pill);
}
.site-header__nav a:hover { background: var(--bg-light-brown); text-decoration: none; }
.site-header__nav a.is-active { background: var(--bg-black); color: var(--text-white); }

/* Navigace kapitol (pilulky pod hlavičkou) */
.chapter-nav { border-bottom: 1px solid #EFE9E3; background: var(--bg-white); }
.chapter-nav__inner {
  display: flex; gap: 6px; overflow-x: auto; padding: 10px 24px;
  max-width: var(--page-max); margin: 0 auto;
  scrollbar-width: thin;
}
.chapter-nav a {
  white-space: nowrap; color: var(--text-muted1);
  font-size: 0.88rem; font-weight: 500;
  padding: 6px 13px; border-radius: var(--radius-pill);
  border: 1px solid transparent;
}
.chapter-nav a:hover { color: var(--text-black); background: var(--bg-light); text-decoration: none; }
.chapter-nav a.is-active { color: var(--text-black); border-color: var(--prim-brown); background: var(--bg-light-brown); }
.chapter-nav--ui a.is-active { border-color: var(--prim-magenta); background: var(--bg-light-magenta); }

/* --------------------------------------------------------------------------
   6) SEKCE A PANELY
   -------------------------------------------------------------------------- */
.page-hero { padding: 56px 0 8px; }
.section { padding: 34px 0; }
.section + .section { border-top: 1px solid #F3EEE9; }

/* Béžový (nebo jiný) zaoblený panel — hlavní stavební prvek layoutu */
.panel {
  background: var(--bg-light-brown);
  border-radius: var(--radius-section);
  padding: clamp(24px, 4vw, 48px);
}
.panel--magenta { background: var(--bg-light-magenta); }
.panel--light   { background: var(--bg-light); }
.panel--dark    { background: var(--bg-black); color: var(--text-light); }
.panel--dark h1, .panel--dark h2, .panel--dark h3 { color: var(--text-white); }

/* Mřížky */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Karta */
.card {
  background: var(--bg-white);
  border: 1px solid #F0EAE4;
  border-radius: var(--radius-card);
  padding: 22px;
}
.card--flat { border: 0; background: var(--bg-light); }

/* Fotky */
.photo { border-radius: var(--radius-image); object-fit: cover; width: 100%; }
figure { margin: 0; }
figcaption { font-size: 0.82rem; color: var(--text-muted1); margin-top: 8px; }

/* --------------------------------------------------------------------------
   7) KOMPONENTY (zdroj: UI guide — Clrs)
   -------------------------------------------------------------------------- */

/* Tlačítka — 3 varianty × stavy */
.btn {
  display: inline-block; cursor: pointer; text-align: center;
  font-family: var(--font-primary); font-weight: 700; font-size: 0.98rem;
  padding: 11px 26px; border: 0; border-radius: var(--radius-button);
  transition: background 0.15s ease, box-shadow 0.15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

/* 1) Primární — hnědé */
.btn--brown { background: var(--prim-brown); color: var(--text-white); }
.btn--brown:hover { background: var(--highlight-prim-brown); color: var(--text-black); box-shadow: var(--shadow-interactive); }

/* 2) Magenta — divize Zdravý spánek */
.btn--magenta { background: var(--prim-magenta); color: var(--text-white); }
.btn--magenta:hover { background: var(--highlight-light-magenta); box-shadow: var(--shadow-interactive); }

/* 3) Černé */
.btn--black { background: var(--bg-black); color: var(--text-light); }
.btn--black:hover { background: var(--text-muted1); box-shadow: var(--shadow-interactive); }

/* Disabled — společné pro všechny varianty */
.btn:disabled, .btn.is-disabled {
  background: var(--bg-light); color: var(--text-muted2);
  cursor: not-allowed; box-shadow: none;
}

/* Tag / štítek */
.tag {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  padding: 3px 12px; border-radius: var(--radius-pill);
}
.tag--instock { background: var(--sem-success-strong); color: var(--text-white); }
.tag--wip     { background: var(--sem-warning); color: var(--text-black); }
.tag--todo    { background: var(--bg-light); color: var(--text-muted1); border: 1px dashed var(--text-muted2); }

/* Alerty — sémantické hlášky */
.alert {
  border-radius: var(--radius-card); padding: 16px 20px; margin: 0 0 14px;
}
.alert strong { display: block; margin-bottom: 2px; }
.alert--success { background: var(--sem-success); }
.alert--error   { background: var(--sem-error); }
.alert--warning { background: var(--sem-warning); }
.alert--info    { background: var(--sem-info); }

/* Taby */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab {
  padding: 8px 18px; border-radius: var(--radius-pill);
  font-weight: 500; font-size: 0.92rem; cursor: pointer;
  color: var(--text-muted1); background: transparent; border: 1px solid transparent;
}
.tab:hover { background: var(--bg-light); color: var(--text-black); }
.tab.is-active { background: var(--bg-black); color: var(--text-white); }

/* Dlaždice (tile) — klikatelná karta */
.tile {
  display: block; background: var(--bg-white);
  border: 1px solid #F0EAE4; border-radius: var(--radius-card);
  padding: 22px; color: var(--text-black);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.tile:hover { box-shadow: var(--shadow-interactive); text-decoration: none; transform: translateY(-2px); }
.tile.is-active { border-color: var(--prim-brown); background: var(--bg-light-brown); }
.tile h3 { margin-bottom: 6px; }
.tile p { color: var(--text-muted1); font-size: 0.9rem; margin: 0; }
.tile__num {
  font-weight: 900; color: var(--prim-brown); font-size: 0.85rem;
  display: block; margin-bottom: 10px;
}

/* Formulářové prvky */
.input, .select {
  width: 100%; font-family: var(--font-primary); font-size: 0.98rem;
  padding: 11px 14px; border-radius: var(--radius-button);
  border: 1px solid var(--text-muted2); background: var(--bg-white); color: var(--text-black);
}
.input::placeholder { color: var(--text-muted2); }
.input:focus, .select:focus { outline: 2px solid var(--prim-brown); outline-offset: 1px; border-color: var(--prim-brown); }
label.field-label { display: block; font-weight: 500; font-size: 0.88rem; margin: 0 0 6px; }

/* Ukázka barevného vzorku (swatch) */
.swatch {
  border-radius: var(--radius-card); overflow: hidden;
  border: 1px solid #EFE9E3; background: var(--bg-white);
}
.swatch__color { height: 92px; }
.swatch__meta { padding: 12px 14px; font-size: 0.82rem; }
.swatch__meta strong { display: block; font-size: 0.88rem; }
.swatch__meta code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  color: var(--text-muted1); font-size: 0.8rem; cursor: pointer;
}
.swatch__meta code:hover { color: var(--text-black); }

/* Patička */
.site-footer {
  margin-top: 60px; background: var(--bg-black); color: var(--text-light);
  border-radius: var(--radius-section) var(--radius-section) 0 0;
}
.site-footer__inner {
  max-width: var(--page-max); margin: 0 auto; padding: 40px 24px;
  display: flex; gap: 24px; align-items: center; flex-wrap: wrap;
}
.site-footer img { width: 52px; height: 52px; border-radius: 12px; }
.site-footer a { color: var(--prim-brown); }
.site-footer .slogan { font-weight: 700; }
.site-footer .meta { margin-left: auto; font-size: 0.85rem; color: var(--text-muted2); }

/* Navigace předchozí / další kapitola */
.pager { display: flex; justify-content: space-between; gap: 16px; margin: 44px 0 10px; }
.pager a {
  flex: 1; max-width: 340px; padding: 16px 20px;
  border: 1px solid #EFE9E3; border-radius: var(--radius-card);
  color: var(--text-black);
}
.pager a:hover { box-shadow: var(--shadow-interactive); text-decoration: none; }
.pager a span { display: block; font-size: 0.78rem; color: var(--text-muted1); }
.pager a.next { text-align: right; margin-left: auto; }

/* Pomocné */
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.flex { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.center { text-align: center; }

/* Ukázkové plochy v UI guidu */
.demo {
  border: 1px dashed #E4DCD3; border-radius: var(--radius-card);
  padding: 26px; background: var(--bg-white);
}
.demo--dark { background: var(--bg-black); border-color: #333; color: var(--text-light); }
.demo--light { background: var(--bg-light); }
.demo--brown { background: var(--bg-light-brown); }
.demo--magenta { background: var(--bg-light-magenta); }

/* Tabulky */
table.spec { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
table.spec th, table.spec td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #F0EAE4; }
table.spec th { font-weight: 700; font-size: 0.85rem; }
table.spec td { font-variant-numeric: tabular-nums; } /* Tabular Lining pro čísla */

/* Zmenšení odsazení na mobilu — vzdušnost zůstává, ale bez plýtvání */
@media (max-width: 620px) {
  body { font-size: 16px; }
  .page-hero { padding-top: 36px; }
}

/* --------------------------------------------------------------------------
   N) NÁVODOVÉ KOMPONENTY (jen tento web, brand-guide je nemá)
   -------------------------------------------------------------------------- */

/* OS přepínač Mac/Windows — obsah se filtruje podle html[data-os] */
.os-tabs { display: inline-flex; gap: 6px; background: var(--bg-light); border-radius: var(--radius-pill); padding: 4px; margin: 10px 0 18px; }
.os-tabs button { border: 0; background: transparent; font: 500 0.95rem var(--font-primary); padding: 8px 22px; border-radius: var(--radius-pill); cursor: pointer; color: var(--text-muted1); }
.os-tabs button.is-active { background: var(--text-black); color: var(--text-white); }
html[data-os="mac"] .only-win { display: none !important; }
html[data-os="win"] .only-mac { display: none !important; }

/* Terminálové okno */
.term { background: #1d1d1f; color: #e8e8e8; border-radius: var(--radius-card); overflow: hidden; margin: 14px 0; box-shadow: var(--shadow-interactive); }
.term__bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: #2a2a2c; }
.term__bar i { width: 11px; height: 11px; border-radius: 50%; background: #555; }
.term__bar i:nth-child(1) { background: #ff5f57; } .term__bar i:nth-child(2) { background: #febc2e; } .term__bar i:nth-child(3) { background: #28c840; }
.term__bar span { margin-left: 8px; font: 400 0.8rem var(--font-primary); color: #9f9f9f; }
.term__body { padding: 14px 16px; font: 400 0.88rem/1.6 "SF Mono", Menlo, Consolas, monospace; white-space: pre-wrap; overflow-x: auto; }
.term__body .p { color: #8bc98b; user-select: none; }   /* prompt „$ “ */
.term__body .out { color: #9f9f9f; }                     /* výstup příkazu */

/* Chat bublina — co napsat Claudovi / co odpoví */
.chat { max-width: 640px; margin: 14px 0; padding: 14px 18px; border-radius: var(--radius-card); background: var(--bg-light-brown); border: 1px solid var(--highlight-prim-brown); font-size: 0.98rem; }
.chat::before { content: "Vy → Claudovi"; display: block; font: 500 0.72rem var(--font-primary); text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted2); margin-bottom: 6px; }
.chat--claude { background: var(--bg-light); border-color: #e5e5e5; margin-left: 32px; }
.chat--claude::before { content: "Claude"; }

/* Kopírovatelný blok (příkaz / prompt) */
.copyable { display: block; position: relative; background: var(--bg-light); border: 1px solid #e5e5e5; border-radius: var(--radius-button); padding: 12px 96px 12px 14px; font: 400 0.88rem/1.5 "SF Mono", Menlo, Consolas, monospace; margin: 10px 0; cursor: pointer; overflow-x: auto; }
.copyable::after { content: "kopírovat"; position: absolute; top: 8px; right: 10px; font: 500 0.72rem var(--font-primary); color: var(--text-muted2); border: 1px solid #ddd; border-radius: var(--radius-pill); padding: 3px 10px; background: var(--bg-white); }
.copyable:hover::after { color: var(--text-black); border-color: var(--text-black); }

/* Číslovaný postup (cesta začátečníka, kroky návodu) */
.steps { list-style: none; margin: 18px 0; padding: 0; counter-reset: krok; }
.steps > li { position: relative; padding: 0 0 22px 56px; counter-increment: krok; }
.steps > li::before { content: counter(krok, decimal-leading-zero); position: absolute; left: 0; top: -2px; width: 38px; height: 38px; border-radius: 50%; background: var(--prim-brown); color: var(--text-white); font: 700 0.95rem var(--font-primary); display: flex; align-items: center; justify-content: center; }
.steps > li:not(:last-child)::after { content: ""; position: absolute; left: 18px; top: 40px; bottom: 4px; width: 2px; background: var(--highlight-prim-brown); }
.steps h3 { margin: 0 0 4px; font-size: 1.05rem; }

/* Placeholder na screenshot — plnohodnotný, dokud Pavel nedodá PNG */
.shot-placeholder { border: 2px dashed var(--prim-brown); border-radius: var(--radius-image); background: var(--bg-light-brown); padding: 34px 24px; text-align: center; margin: 14px 0; color: var(--text-muted1); }
.shot-placeholder strong { display: block; font-size: 0.85rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--prim-brown); margin-bottom: 6px; }

/* Klávesa */
.kbd { display: inline-block; border: 1px solid #ccc; border-bottom-width: 3px; border-radius: 6px; background: var(--bg-white); padding: 2px 8px; font: 500 0.82rem "SF Mono", Menlo, Consolas, monospace; }

/* Ukázka diffu */
.diff { border-radius: var(--radius-button); overflow: hidden; border: 1px solid #e5e5e5; font: 400 0.85rem/1.6 "SF Mono", Menlo, Consolas, monospace; margin: 14px 0; }
.diff > div { padding: 3px 14px; white-space: pre-wrap; }
.diff__add { background: var(--sem-success); }
.diff__del { background: var(--sem-error); text-decoration: line-through; text-decoration-color: #00000040; }

/* Mockup okna aplikace (Claude Desktop, prohlížeč) */
.mock-window { border: 1px solid #e0e0e0; border-radius: var(--radius-card); overflow: hidden; margin: 14px 0; box-shadow: var(--shadow-interactive); background: var(--bg-white); }
.mock-window__bar { display: flex; align-items: center; gap: 6px; padding: 9px 14px; background: var(--bg-light); border-bottom: 1px solid #e8e8e8; font: 400 0.8rem var(--font-primary); color: var(--text-muted2); }
.mock-window__bar i { width: 11px; height: 11px; border-radius: 50%; background: #d9d9d9; }
.mock-window__body { padding: 18px; }

/* SVG diagramy */
.diagram { display: block; width: 100%; height: auto; margin: 18px 0; }
.diagram text { font-family: var(--font-primary); }

.copyable.is-copied::after, code[data-copy].is-copied { color: var(--sem-success-strong); }
.copyable.is-copied::after { content: "zkopírováno ✓"; border-color: var(--sem-success-strong); }