/* ==========================================================================
   Konfigurátor vzhledu — panel připnutý u pravého okraje.
   Je to nástroj pro ladění s klientem, ne součást webu, proto má vlastní
   uzavřené proměnné (--cfg-*) a nepoužívá barvy webu. Když se přebarví web,
   panel zůstane čitelný.
   ========================================================================== */

.cfg {
  --cfg-bg:      #1F2A24;
  --cfg-panel:   #26332C;
  --cfg-line:    #3B4A42;
  --cfg-text:    #EAF0EB;
  --cfg-muted:   #9FB2A5;
  --cfg-accent:  #8FC79F;
  --cfg-radius:  0.7rem;

  position: fixed;
  inset-block-start: 50%;
  inset-inline-end: 0;
  translate: 0 -50%;
  z-index: 60;
  display: flex;
  align-items: center;
  font-family: ui-sans-serif, system-ui, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.875rem;
  color: var(--cfg-text);
}

/* Ouško, kterým se panel otevírá a zavírá ------------------------------- */
/* Panel stojí mimo typografii webu — nadpisy si nesmí vzít písmo stránky. */
.cfg :is(h2, h3, h4) { font-family: inherit; letter-spacing: normal; line-height: 1.3; }
.cfg p { max-inline-size: none; }

.cfg__tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 0.55rem;
  border: 0;
  border-radius: var(--cfg-radius) 0 0 var(--cfg-radius);
  background: var(--cfg-bg);
  color: var(--cfg-text);
  cursor: pointer;
  box-shadow: -4px 0 18px -8px rgb(0 0 0 / 0.5);
}
.cfg__tab:hover { background: var(--cfg-panel); }
.cfg__tab svg { inline-size: 1.15rem; block-size: 1.15rem; }
.cfg__tab span {
  writing-mode: vertical-rl;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.66rem;
  font-weight: 600;
}

/* Tělo panelu ----------------------------------------------------------- */
.cfg__panel {
  inline-size: min(20.5rem, 92vw);
  max-block-size: min(88vh, 46rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--cfg-bg);
  border-inline-start: 1px solid var(--cfg-line);
  box-shadow: -12px 0 40px -24px rgb(0 0 0 / 0.8);
  scrollbar-color: var(--cfg-line) transparent;
  scrollbar-width: thin;
}
.cfg[hidden] { display: none; }
.cfg:not(.is-open) .cfg__panel { display: none; }

.cfg__head {
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.1rem 0.85rem;
  background: var(--cfg-bg);
  border-block-end: 1px solid var(--cfg-line);
}
.cfg__head h2 { margin: 0; font-size: 0.95rem; font-weight: 600; }
.cfg__head p { margin: 0.2rem 0 0; font-size: 0.75rem; color: var(--cfg-muted); line-height: 1.45; }
.cfg__close {
  margin-inline-start: auto;
  flex: none;
  inline-size: 1.9rem;
  block-size: 1.9rem;
  display: grid;
  place-content: center;
  border: 1px solid var(--cfg-line);
  border-radius: 0.45rem;
  background: transparent;
  color: var(--cfg-text);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}
.cfg__close:hover { background: var(--cfg-panel); }

.cfg__section { padding: 1rem 1.1rem; border-block-end: 1px solid var(--cfg-line); }
.cfg__section > h3 {
  margin: 0 0 0.75rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cfg-muted);
}

/* Presety palet --------------------------------------------------------- */
.cfg__presets { display: grid; gap: 0.4rem; }
.cfg__preset {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--cfg-line);
  border-radius: 0.5rem;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.82rem;
  text-align: start;
  cursor: pointer;
}
.cfg__preset:hover { background: var(--cfg-panel); }
.cfg__preset[aria-pressed="true"] { border-color: var(--cfg-accent); background: var(--cfg-panel); }
.cfg__swatches { display: flex; flex: none; }
.cfg__swatches i {
  inline-size: 0.85rem;
  block-size: 1.5rem;
  display: block;
  border: 1px solid rgb(0 0 0 / 0.25);
}
.cfg__swatches i:first-child { border-radius: 0.25rem 0 0 0.25rem; }
.cfg__swatches i:last-child { border-radius: 0 0.25rem 0.25rem 0; }

/* Barvy ----------------------------------------------------------------- */
.cfg__group { margin-block-end: 0.9rem; }
.cfg__group:last-child { margin-block-end: 0; }
.cfg__group > h4 {
  margin: 0 0 0.45rem;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--cfg-muted);
}
.cfg__color {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: center;
  gap: 0.55rem;
  padding-block: 0.22rem;
}
.cfg__color label { font-size: 0.78rem; line-height: 1.25; }
.cfg__color label small { display: block; color: var(--cfg-muted); font-size: 0.68rem; }
.cfg__color input[type="color"] {
  inline-size: 2rem;
  block-size: 2rem;
  padding: 0;
  border: 1px solid var(--cfg-line);
  border-radius: 0.4rem;
  background: transparent;
  cursor: pointer;
}
.cfg__color input[type="color"]::-webkit-color-swatch-wrapper { padding: 2px; }
.cfg__color input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 0.28rem; }
.cfg__color input[type="text"] {
  inline-size: 5.2rem;
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--cfg-line);
  border-radius: 0.4rem;
  background: var(--cfg-panel);
  color: var(--cfg-text);
  font: inherit;
  font-size: 0.74rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: lowercase;
}
.cfg__color input[type="text"]:focus-visible,
.cfg__color input[type="color"]:focus-visible,
.cfg button:focus-visible,
.cfg select:focus-visible { outline: 2px solid var(--cfg-accent); outline-offset: 2px; }

/* Volby motivu a značky -------------------------------------------------- */
.cfg__choices { display: grid; gap: 0.4rem; }
.cfg__choice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem;
  align-items: start;
  padding: 0.5rem 0.55rem;
  border: 1px solid var(--cfg-line);
  border-radius: 0.5rem;
  cursor: pointer;
}
.cfg__choice:hover { background: var(--cfg-panel); }
.cfg__choice input { margin: 0.15rem 0 0; accent-color: var(--cfg-accent); }
.cfg__choice strong { display: block; font-size: 0.82rem; font-weight: 600; }
.cfg__choice small { display: block; margin-block-start: 0.15rem; font-size: 0.7rem; color: var(--cfg-muted); line-height: 1.4; }
.cfg__choice:has(input:checked) { border-color: var(--cfg-accent); background: var(--cfg-panel); }
.cfg__choice-preview {
  grid-column: 2;
  margin-block-start: 0.5rem;
  block-size: 3.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cfg-accent);
  opacity: 0.85;
}
.cfg__choice-preview svg { block-size: 100%; inline-size: auto; max-inline-size: 100%; }

/* Kontrast --------------------------------------------------------------- */
.cfg__contrast { display: grid; gap: 0.35rem; margin: 0; }
.cfg__contrast div {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.74rem;
}
.cfg__contrast dt { color: var(--cfg-muted); }
.cfg__contrast dd { margin: 0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.cfg__badge {
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.cfg__badge--pass { background: #2C5A3C; color: #CBEBD5; }
.cfg__badge--warn { background: #5A4A22; color: #F0E0B8; }
.cfg__badge--fail { background: #5E2A26; color: #F3CFC9; }

/* Akce ------------------------------------------------------------------- */
.cfg__actions { display: grid; gap: 0.45rem; padding: 1rem 1.1rem 1.2rem; }
.cfg__btn {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--cfg-line);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--cfg-text);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.cfg__btn:hover { background: var(--cfg-panel); }
.cfg__btn--primary { background: var(--cfg-accent); border-color: var(--cfg-accent); color: #16241B; }
.cfg__btn--primary:hover { filter: brightness(1.07); }
.cfg__hint { margin: 0.15rem 0 0; font-size: 0.7rem; color: var(--cfg-muted); line-height: 1.45; }
.cfg__url {
  inline-size: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--cfg-line);
  border-radius: 0.4rem;
  background: var(--cfg-panel);
  color: var(--cfg-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
}

/* Na mobilu panel vyjede odspodu, aby nepřekrýval obsah na výšku. */
@media (max-width: 40rem) {
  .cfg {
    inset-block-start: auto;
    inset-block-end: 0;
    inset-inline: 0;
    translate: none;
    flex-direction: column-reverse;
    align-items: flex-end;
  }
  .cfg__tab {
    flex-direction: row;
    border-radius: var(--cfg-radius) 0 0 0;
    margin-inline-end: 0.75rem;
  }
  .cfg__tab span { writing-mode: horizontal-tb; }
  .cfg__panel {
    inline-size: 100vw;
    max-block-size: 72vh;
    border-inline-start: 0;
    border-block-start: 1px solid var(--cfg-line);
  }
}

@media print { .cfg { display: none; } }