/**
 * AiA — vizuální jazyk "Pracovna" (zvoleno 2026-09-22, viz memory
 * aia-backlog-2026-09-15). Barva jen tam, kde něco znamená: neutrální
 * škála + oranžová (běží / hvězdy ředitele), zelená (shoda / hotovo),
 * červená (chyba). Shrnutí učitele = grafitový invertovaný blok
 * (tokeny --teacher-*), jediná velká invertovaná plocha na stránce.
 *
 * Motiv: světlý je výchozí (`:root`), tmavý se aplikuje buď podle systému
 * (`prefers-color-scheme`, pokud uživatel nezvolil), nebo explicitně přes
 * `data-theme` na <html> (volba se pamatuje v localStorage, viz
 * state/theme.js + inline skript v index.html, který ji nastaví ještě
 * před načtením CSS, aby stránka neblikla).
 *
 * Každá barva jde přes token výše — žádné hex hodnoty v komponentách
 * (jinak by se tmavý motiv rozpadl). Pořadí souboru: tokeny → reset →
 * sdílené prvky → lišta → login → dashboard → modál → pracovní plocha.
 */

/* Písmo Onest je uložené lokálně (assets/fonts/, licence OFL) — appka je
   záměrně bez závislosti na internetu za běhu (viz memory
   aia-vanilla-rewrite-plan). Variabilní řez 400–700, latin + latin-ext
   (české znaky jsou v latin-ext). */
@font-face {
  font-family: 'Onest';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/onest-latin-ext.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: 'Onest';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/onest-latin.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 {
  color-scheme: light;

  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-2: #eff1f3;
  --line: #e4e7ea;
  --line-2: #d2d7dc;
  --ink: #111417;
  --ink-2: #545e69;
  --ink-3: #8a939e;
  --inv: #111417;
  --inv-ink: #f6f7f8;
  --inv-mute: #a9b1ba;
  --inv-line: rgba(255, 255, 255, 0.14);

  --amber: #b4771d;
  --amber-soft: #fbf3e3;
  --green: #1f7a4f;
  --green-soft: #e5f3eb;
  --red: #b3372d;
  --red-soft: #fbe9e6;

  --shadow: 0 1px 2px rgba(17, 20, 23, 0.05), 0 8px 24px -12px rgba(17, 20, 23, 0.18);
  --backdrop: rgba(17, 20, 23, 0.45);

  /* Blok shrnutí učitele — grafitová inverze (varianta A, 2026-09-22):
     výraznější než šedá plocha, měkčí než černá. Odstín se ladí tady. */
  --teacher-bg: #2a3138;
  --teacher-ink: #f2f4f6;
  --teacher-mute: #aab3bc;
  --teacher-line: rgba(255, 255, 255, 0.16);

  --font: 'Onest', system-ui, -apple-system, sans-serif;
  --top: 52px; /* výška horní lišty — vše, co se k ní lepí, používá tenhle token */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-pill: 999px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --bg: #0e1012;
    --surface: #151819;
    --surface-2: #1c2023;
    --line: #24292e;
    --line-2: #33393f;
    --ink: #eceef0;
    --ink-2: #a5adb5;
    --ink-3: #6c7580;
    --inv: #eceef0;
    --inv-ink: #0e1012;
    --inv-mute: #5b646e;
    --inv-line: rgba(0, 0, 0, 0.12);
    --amber: #e3aa4c;
    --amber-soft: rgba(227, 170, 76, 0.14);
    --green: #4ec28a;
    --green-soft: rgba(78, 194, 138, 0.14);
    --red: #e7695f;
    --red-soft: rgba(231, 105, 95, 0.14);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
    --backdrop: rgba(0, 0, 0, 0.6);
    --teacher-bg: #cfd6db;
    --teacher-ink: #14181b;
    --teacher-mute: #4f5962;
    --teacher-line: rgba(0, 0, 0, 0.14);
  }
}
:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0e1012;
  --surface: #151819;
  --surface-2: #1c2023;
  --line: #24292e;
  --line-2: #33393f;
  --ink: #eceef0;
  --ink-2: #a5adb5;
  --ink-3: #6c7580;
  --inv: #eceef0;
  --inv-ink: #0e1012;
  --inv-mute: #5b646e;
  --inv-line: rgba(0, 0, 0, 0.12);
  --amber: #e3aa4c;
  --amber-soft: rgba(227, 170, 76, 0.14);
  --green: #4ec28a;
  --green-soft: rgba(78, 194, 138, 0.14);
  --red: #e7695f;
  --red-soft: rgba(231, 105, 95, 0.14);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
  --backdrop: rgba(0, 0, 0, 0.6);
  --teacher-bg: #cfd6db;
  --teacher-ink: #14181b;
  --teacher-mute: #4f5962;
  --teacher-line: rgba(0, 0, 0, 0.14);
}

/* Minimální reset — bez Tailwind preflight to appka potřebuje sama. */
* {
  box-sizing: border-box;
}
button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  color: inherit;
}
input,
textarea,
select {
  font: inherit;
  color: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

body {
  margin: 0;
  padding-top: var(--top); /* místo pro fixní .topbar, viz níže */
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.field {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  color: var(--ink);
}
.field:focus {
  outline: none;
  border-color: var(--ink);
}

.btn-accent,
.btn-ghost {
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.btn-accent {
  background: var(--inv);
  color: var(--inv-ink);
  border: 1px solid var(--inv);
}
.btn-accent:hover:not(:disabled) {
  background: var(--ink-2);
  border-color: var(--ink-2);
}
.btn-accent:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-ghost {
  background: var(--surface);
  border: 1px solid var(--line-2);
  color: var(--ink);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--ink-3);
}
.btn-ghost:disabled {
  opacity: 0.6;
  cursor: default;
}

.badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  display: inline-block;
}
.badge-blue {
  background: var(--surface-2);
  color: var(--ink-2);
}
/* Stavové odznaky (ResponseCard.js: ok / pending / error+timeout) — do
   2026-09-22 v CSS chyběly úplně, odznaky byly bez barvy. */
.badge-green {
  background: var(--green-soft);
  color: var(--green);
}
.badge-orange {
  background: var(--amber-soft);
  color: var(--amber);
}
.badge-red {
  background: var(--red-soft);
  color: var(--red);
}

/* --- topbar (main.js + components/TopBar.js, UserMenu.js) --- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--top);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.topbar-left {
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--inv);
  color: var(--inv-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
}
.brand-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand:hover .brand-name {
  color: var(--ink-2);
}
.topnav {
  display: flex;
  gap: 2px;
}
.topnav-item {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
}
.topnav-item:hover {
  background: var(--surface-2);
  color: var(--ink);
}
.topnav-item.is-active {
  color: var(--ink);
  background: var(--surface-2);
  font-weight: 600;
}
/* Položky, které zatím nemají obsah (Uživatelé, Nastavení) — jen naznačené. */
.topnav-item.is-dim {
  color: var(--ink-3);
  cursor: default;
}
.topnav-item.is-dim:hover {
  background: none;
  color: var(--ink-3);
}
@media (max-width: 720px) {
  .topnav-item.is-dim {
    display: none;
  }
}
/* Stavový čip běžícího kola (TopBar.js setTopbarStatus) — persistentní
   element, mění se mu jen text/hidden. */
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 12px 0 10px;
  border-radius: var(--radius-pill);
  background: var(--amber-soft);
  color: var(--amber);
  font-weight: 600;
  font-size: 12px;
  white-space: nowrap;
}
.status-chip[hidden] {
  display: none;
}
@media (max-width: 720px) {
  .status-chip-text {
    display: none;
  }
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-3);
  flex-shrink: 0;
  display: inline-block;
}
.dot-run {
  background: var(--amber);
  animation: pulse 1.6s ease-in-out infinite;
}
.dot-done {
  background: var(--green);
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--amber) 50%, transparent);
  }
  55% {
    box-shadow: 0 0 0 5px transparent;
  }
}
.theme-toggle {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  font-size: 14px;
  padding: 0;
}

/* --- user menu (components/UserMenu.js) --- */
.user-menu-root {
  position: relative;
}
.user-menu-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 3px 6px 3px 0;
  margin-left: 4px;
  border-left: 1px solid var(--line);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.user-menu-toggle:hover {
  background: var(--surface-2);
}
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--inv);
  color: var(--inv-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  margin-left: 10px;
  flex-shrink: 0;
}
.user-menu-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-align: left;
}
.user-menu-name {
  font-size: 12.5px;
  font-weight: 600;
}
.user-menu-role {
  font-size: 11px;
  color: var(--ink-3);
}
@media (max-width: 720px) {
  .user-menu-text {
    display: none;
  }
}
.user-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  width: 180px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px;
  z-index: 50;
  box-shadow: var(--shadow);
}
.user-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--red);
}
.user-menu-item:hover {
  background: var(--surface-2);
}

/* --- login (views/LoginView.js) --- */
.login-page {
  min-height: calc(100vh - var(--top));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
.login-card {
  max-width: 380px;
  width: 100%;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.login-brand .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  font-size: 17px;
}
.login-brand .brand-name {
  font-size: 18px;
}
.login-title {
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  color: var(--ink-2);
  margin-top: -6px;
}
/* Sdílená chybová hláška formulářů (login, nový projekt, Pracovní stůl). */
.login-error {
  font-size: 13px;
  color: var(--red);
  background: var(--red-soft);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
}
.field-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-2);
}
/* Sdílené pro každé textové/select pole appky (login i dashboard formulář) —
   ne jen login-specifické, přejmenováno z původního .login-input. */
.field-input {
  width: 100%;
  padding: 9px 11px;
  font-size: 13.5px;
}
.field-textarea {
  min-height: 72px;
  resize: vertical;
}
.login-submit {
  width: 100%;
  height: 38px;
  border-radius: 9px;
  font-size: 13.5px;
}

/* --- dashboard (views/DashboardView.js) --- */
.dashboard-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.dashboard-h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.dashboard-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
/* Segmentový přepínač (filtry na dashboardu). */
.seg {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border-radius: 9px;
  background: var(--surface-2);
}
.seg-btn {
  padding: 5px 11px;
  border-radius: 7px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
  border: 1px solid transparent;
}
.seg-btn:hover {
  color: var(--ink);
}
.seg-btn.is-on {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
  font-weight: 600;
}
/* Mobil (2026-09-24): záložky se posouvají vodorovně místo roztažení stránky,
   hlavička se skládá pod sebe (název · záložky · tlačítko). */
@media (max-width: 720px) {
  .dashboard-header {
    flex-direction: column;
    align-items: stretch;
  }
  .dashboard-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .dashboard-header,
  .dashboard-actions {
    width: 100%;
    min-width: 0;
  }
  .seg {
    display: flex;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    overflow-x: auto;
    flex-wrap: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
  }
  .seg::-webkit-scrollbar {
    display: none;
  }
  .seg-btn {
    flex: 0 0 auto;
  }
  .dashboard-add-btn {
    width: 100%;
  }
  .admin-page .dashboard-header {
    align-items: stretch;
  }
}
.dashboard-add-btn {
  height: 34px;
  padding: 0 14px;
  border-radius: 9px;
  font-size: 13px;
}
.dashboard-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* --- sdílený modál (views/DashboardView.js, components/SaveResponseModal.js) --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-box {
  width: 100%;
  max-width: 440px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title {
  font-size: 15px;
  font-weight: 600;
}
.modal-close {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}
.modal-close:hover {
  background: var(--surface-2);
}
.modal-box-sm {
  max-width: 360px;
}
.modal-box-md {
  max-width: 600px;
}
/* modál "vše od žáka / učitele" (ZakModal.js) */
.zak-modal {
  max-width: 720px;
  gap: 12px;
}
.zm-sum {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 12.5px;
  color: var(--ink-2);
}
.zm-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.zm-item {
  border-radius: 10px;
}
.zm-item:hover {
  background: var(--surface-2);
}
.zm-hd {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto 14px;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  cursor: pointer;
  font-size: 13px;
}
.zm-hd.is-static {
  cursor: default;
}
.zm-hd b {
  font-size: 11px;
  color: var(--ink-3);
}
.zm-q {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.zm-m {
  display: flex;
  gap: 10px;
  font-size: 11.5px;
  color: var(--ink-3);
  white-space: nowrap;
}
.zm-m .is-err {
  color: var(--red);
}
.zm-hd[aria-expanded='true'] .caret {
  transform: rotate(90deg);
}
.zm-body {
  padding: 0 12px 12px 54px;
}
.zm-body[hidden] {
  display: none;
}
.zm-suggest {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
}
/* Nastavení projektu — výběr žáků */
.radio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
}
.radio-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.check-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 6px 10px;
  margin-top: 8px;
}
.check-list[hidden] {
  display: none;
}
.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}
.check-item:hover {
  border-color: var(--line-2);
}
.kv-wrap dd {
  text-align: right;
  white-space: normal;
  max-width: 60%;
  margin-left: auto;
}
.kv dd.is-plain {
  font-weight: 500;
}
.panel-settings-btn {
  width: 100%;
  margin-top: 4px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.dashboard-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 640px) {
  .dashboard-form-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.dashboard-empty {
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 32px 0;
  text-align: center;
}
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 640px) {
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.dashboard-card {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.dashboard-card:hover {
  border-color: var(--ink-3);
  box-shadow: var(--shadow);
}
.dashboard-card-title {
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dashboard-card-desc {
  font-size: 12.5px;
  color: var(--ink-2);
  min-height: 2.6em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dashboard-card-badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
/* Neutrální štítek (typ, doména, bezpečnost) — bez významové barvy. */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--ink-2);
}

/* --- dočasné placeholdery (main.js loading text) --- */
.placeholder-view {
  padding: 24px 16px;
  font-size: 13px;
  color: var(--ink-2);
}

/* --- hamburger (components/PanelToggleIcon.js) --- */
/* Skutečný morph mezi hamburgerem a křížkem — 3 persistentní elementy, jen
   se jim mění transform/opacity/top. Funguje, protože appka nikdy nemaže a
   znovu nevytváří DOM, který se nezměnil (viz memory aia-vanilla-rewrite-plan,
   podmínka č. 2) — přesně tohle bylo ve staré vanilla appce nemožné. */
.hamburger {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 14px;
}
.hamburger-bar {
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease;
}
.hamburger-bar-top {
  top: 0;
}
.hamburger-bar-mid {
  top: 6px;
}
.hamburger-bar-bottom {
  top: 12px;
}
.hamburger-open .hamburger-bar-top {
  top: 6px;
  transform: rotate(45deg);
}
.hamburger-open .hamburger-bar-mid {
  opacity: 0;
}
.hamburger-open .hamburger-bar-bottom {
  top: 6px;
  transform: rotate(-45deg);
}
.hamburger-toggle {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* Na desktopu jsou oba panely vždy vidět (viz .side-panel níže) — hamburgery
   nejsou co přepínat. */
@media (min-width: 1024px) {
  .hamburger-toggle {
    display: none;
  }
}

/* ══════════════════════════════════════════════════════════════════════
   Pracovní plocha projektu — půdorys seznam + detail
   (views/ProjectWorkspaceView.js, components/ListPane.js, RoundDetail.js…)
   ══════════════════════════════════════════════════════════════════════ */
.workspace {
  position: relative;
}
.workspace-backdrop {
  position: fixed;
  top: var(--top);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--backdrop);
  z-index: 30;
}

/* Boční panely: na mobilu fixed + translate (projekt zleva, seznam zprava),
   na desktopu buňky mřížky, každá roluje sama. */
.side-panel {
  position: fixed;
  top: var(--top);
  bottom: 0;
  z-index: 40;
  width: 320px;
  max-width: 88vw;
  overflow-y: auto;
  background: var(--surface);
  transform: translateX(0);
  transition: transform 0.2s ease;
  scrollbar-width: thin;
}
.side-panel-left {
  left: 0;
  border-right: 1px solid var(--line);
  transform: translateX(-100%);
}
.side-panel-right {
  right: 0;
  border-left: 1px solid var(--line);
  transform: translateX(100%);
}
.side-panel-open {
  transform: translateX(0);
}
.ws-detail {
  min-width: 0;
  min-height: calc(100vh - var(--top));
}
@media (min-width: 1024px) {
  .workspace {
    display: grid;
    grid-template-columns: 236px 332px minmax(0, 1fr);
    height: calc(100vh - var(--top));
  }
  .workspace-backdrop {
    display: none;
  }
  .side-panel {
    position: static;
    top: auto;
    z-index: auto;
    width: auto;
    max-width: none;
    height: 100%;
    transform: none !important;
  }
  .ws-detail {
    height: 100%;
    min-height: 0;
    overflow-y: auto;
    scrollbar-width: thin;
  }
}
.ws-detail-in {
  max-width: 920px;
  margin-inline: auto;
  padding: 0 28px 120px;
}
@media (max-width: 720px) {
  .ws-detail-in {
    padding: 0 14px 80px;
  }
}

/* Správa (views/AdminView.js) */
.admin-page .dashboard-header {
  align-items: flex-end;
}
.admin-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.admin-card {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.admin-card .section-title {
  color: var(--ink-2);
}
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px 16px;
}
.admin-acts {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.admin-acts .help {
  margin-right: auto;
}
.admin-note {
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 8px;
}
.admin-note.is-ok {
  background: var(--green-soft);
  color: var(--green);
}
.admin-note.is-err {
  background: var(--red-soft);
  color: var(--red);
}
.admin-log {
  margin: 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--surface-2);
  font-size: 11.5px;
  line-height: 1.45;
  white-space: pre-wrap;
  color: var(--ink-2);
}
.admin-log[hidden] {
  display: none;
}
.admin-table {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-x: auto;
}
.admin-row {
  display: grid;
  grid-template-columns: minmax(160px, 2fr) minmax(160px, 2fr) 90px 90px 130px;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  min-width: 620px;
}
.admin-row:hover:not(.is-head) {
  background: var(--surface-2);
}
.admin-row.is-head {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.admin-row.is-off {
  opacity: 0.6;
}
.admin-badge {
  margin-left: 8px;
}
.admin-row.is-link {
  cursor: pointer;
}
.admin-row.is-link:focus-visible {
  outline: 2px solid var(--ink-3);
}
.admin-detail {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.admin-detail-hd {
  display: flex;
  align-items: center;
  gap: 12px;
}
.admin-detail-name {
  font-size: 15px;
  font-weight: 700;
}
/* Žáci (views/AdminZaci.js) */
.admin-row.zak-row {
  grid-template-columns: minmax(170px, 2fr) minmax(120px, 1.2fr) 90px 90px minmax(110px, 1fr) auto;
  min-width: 760px;
}
.admin-row.user-row {
  grid-template-columns: minmax(180px, 2fr) minmax(110px, 1fr) minmax(120px, 1.2fr) 120px auto;
  min-width: 760px;
}
.admin-row.log-row {
  grid-template-columns: 110px 130px minmax(160px, 1fr) 90px;
  min-width: 0;
}
.admin-row.group-row {
  grid-template-columns: minmax(160px, 1.5fr) minmax(200px, 3fr) 110px auto;
}
.share-box {
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.share-box[hidden] {
  display: none;
}
.owner-box .help {
  margin: 0;
}
.owner-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
}
.owner-acts .field-input {
  width: auto;
  min-width: 200px;
}
.btn-ghost.is-danger {
  color: var(--red);
  border-color: var(--red);
}
.btn-ghost.is-danger:hover:not(:disabled) {
  background: var(--red-soft);
}
.dashboard-card.is-stub {
  opacity: 0.75;
  border-style: dashed;
  cursor: default;
}
.dashboard-card-acts {
  margin-left: auto;
  display: inline-flex;
  gap: 4px;
}
.dashboard-owner {
  font-size: 11px;
  color: var(--ink-3);
  margin-left: 6px;
}
.panel-owner {
  margin: -4px 0 0;
}
.readonly-note {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--ink-2);
  border: 1px dashed var(--line-2);
}
.stars.is-readonly .grade-star {
  cursor: default;
}
/* 2FA (TwoFactorPanel.js, LoginView krok 2) */
.twofa {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.twofa-state {
  margin: 0;
  font-size: 13.5px;
}
.twofa-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.twofa-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.twofa-option {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}
.twofa-option .help {
  margin: 0;
}
.twofa-setup {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.twofa-qr {
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  line-height: 0;
}
.twofa-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13.5px;
}
.twofa-steps p {
  margin: 0;
}
.twofa-secret {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  user-select: all;
}
.twofa-code {
  font-size: 20px;
  letter-spacing: 0.3em;
  font-variant-numeric: tabular-nums;
  max-width: 200px;
}
.login-links {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 10px;
}
.login-card-wide {
  max-width: 640px;
}
@media (max-width: 560px) {
  .twofa-setup {
    grid-template-columns: 1fr;
  }
}
.modal-backdrop.is-session {
  z-index: 150;
}
.login-remember {
  margin: 2px 0 12px;
  font-size: 13px;
}
.admin-row.device-row {
  grid-template-columns: minmax(160px, 2fr) minmax(140px, 2fr) auto;
  min-width: 0;
}
.admin-row.zt-row {
  grid-template-columns: minmax(170px, 1.2fr) minmax(220px, 3fr) 90px 150px;
}
.zak-note {
  display: block;
  font-size: 11px;
}
.zak-caps-lg {
  margin-left: 0;
  font-size: 14px;
  gap: 5px;
  opacity: 1;
}
.zak-state {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 12px;
}
.zak-acts {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.zak-form .section-title {
  margin-top: 4px;
}
.check-list-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-top: 4px;
}
.field-group[hidden] {
  display: none;
}
.admin-split {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.admin-subnav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.admin-subbtn {
  text-align: left;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
}
.admin-subbtn:hover {
  background: var(--surface-2);
}
.admin-subbtn.is-on {
  background: var(--surface-2);
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.admin-subbody {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.admin-test-to {
  width: 260px;
  max-width: 100%;
}
@media (max-width: 720px) {
  .admin-split {
    grid-template-columns: 1fr;
  }
  .admin-subnav {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

/* --- levý panel — projekt (LeftPanel.js) --- */
.ws-side {
  padding: 20px 18px 40px;
}
.ws-side-sec {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.panel-back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-3);
}
.panel-back-link:hover {
  color: var(--ink);
}
.panel-project-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin: 14px 0 6px;
  text-wrap: balance;
}
.panel-project-desc {
  margin: 0;
  font-size: 12.5px;
  color: var(--ink-2);
  line-height: 1.5;
}
.panel-project-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}
.help {
  margin: 0;
  font-size: 11.5px;
  color: var(--ink-3);
  line-height: 1.45;
}
.kv {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  font-size: 12.5px;
  margin: 0;
}
.kv dt {
  color: var(--ink-2);
}
.kv dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.kv dd.is-green {
  color: var(--green);
}

/* --- prostřední panel — záložky (ListPane.js) --- */
.ws-list {
  display: flex;
  flex-direction: column;
}
.tabs {
  display: flex;
  gap: 2px;
  padding: 12px 12px 0;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 5;
}
.tab {
  padding: 8px 10px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.tab:hover {
  color: var(--ink);
}
.tab[aria-selected='true'] {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--ink);
}
.tab-n {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}
.tabpanel {
  padding: 8px;
}
.tabpanel[hidden] {
  display: none;
}
.list-empty {
  padding: 28px 12px;
  font-size: 13px;
  color: var(--ink-3);
  text-align: center;
}

/* řádek kola (RoundRow.js) */
.rounds-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.round-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 12px;
  align-items: start;
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  text-align: left;
}
.round-row:hover {
  background: var(--surface-2);
}
.round-row[aria-selected='true'] {
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.round-row .dot {
  margin-top: 6px;
}
.round-row-body {
  display: block;
  min-width: 0;
}
.round-row-t {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.round-row-t b {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-3);
}
.round-row-t em {
  font-style: normal;
  font-size: 11px;
  color: var(--amber);
  font-weight: 600;
}
.round-row-q {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.4;
  margin-top: 3px;
  white-space: pre-line;
}
.round-row-m {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 7px;
  font-size: 11.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.round-row-m .is-green {
  color: var(--green);
  font-weight: 600;
}
.round-row-m .is-amber {
  color: var(--amber);
  font-weight: 600;
}

/* soubory v seznamu (FilesPanel.js) */
.files-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.file-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 9px 12px;
  border-radius: 10px;
}
.file-row:hover {
  background: var(--surface-2);
}
.file-ic {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--surface-2);
  display: grid;
  place-items: center;
  font-size: 13px;
}
.file-row-body {
  display: block;
  min-width: 0;
}
.file-row-name {
  display: block;
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-row-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}
.file-row-acts {
  margin-left: auto;
  display: flex;
  gap: 2px;
}
.mini {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: inline-grid;
  place-items: center;
  color: var(--ink-3);
  font-size: 12px;
  padding: 0;
  flex-shrink: 0;
}
.mini:hover {
  background: var(--surface);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.hidden-file-input {
  display: none;
}
.list-add {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  border-radius: 10px;
  border: 1px dashed var(--line-2);
  text-align: center;
  font-weight: 500;
  font-size: 12.5px;
  color: var(--ink-3);
  cursor: pointer;
}
.list-add-link {
  font: inherit;
  cursor: pointer;
  background: none;
  text-align: center;
}
.list-add:hover {
  color: var(--ink);
  border-color: var(--ink-3);
}
@keyframes flash-highlight {
  0% {
    background: var(--amber-soft);
  }
  100% {
    background: transparent;
  }
}
.flash-highlight {
  animation: flash-highlight 1.5s ease;
}

/* nápady v seznamu (IdeaInbox.js, IdeaCard.js) */
.idea-inbox {
  display: flex;
  flex-direction: column;
}
.idea-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.idea-card {
  padding: 11px 12px;
  border-radius: 10px;
  border-left: 3px solid var(--amber);
}
.idea-card:hover {
  background: var(--surface-2);
}
.idea-text {
  font-size: 13px;
  line-height: 1.45;
  cursor: text;
  white-space: pre-wrap;
}
.idea-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 5px;
}
.idea-acts {
  margin-left: auto;
  display: flex;
  gap: 2px;
}
.idea-src {
  height: 20px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--amber);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.idea-src:hover {
  box-shadow: inset 0 0 0 1px var(--amber);
}
.idea-cite {
  margin: 0 0 6px;
  padding: 5px 10px;
  border-left: 2px solid var(--amber);
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-2);
  white-space: pre-wrap;
  max-height: 3.9em;
  overflow: hidden;
  cursor: pointer;
}
.idea-cite.is-open {
  max-height: none;
}
.idea-note-empty {
  color: var(--ink-3);
  font-size: 12.5px;
}
.idea-note-empty:hover {
  color: var(--ink);
}
.idea-edit-textarea {
  min-height: 60px;
  font-size: 13px;
}
.idea-edit-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}
.idea-new-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 4px 4px;
}
.idea-new-textarea {
  min-height: 48px;
  font-size: 13px;
}
.idea-add-submit-btn {
  align-self: flex-start;
  height: 28px;
  padding: 0 12px;
  border-radius: 7px;
  font-size: 12px;
}

/* --- sdílené: chip, drobný nadpis sekce, malé tlačítko --- */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chip-row[hidden] {
  display: none;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 500;
  padding: 3px 6px 3px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}
.chip button {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  font-size: 11px;
}
.chip button:hover {
  color: var(--red);
  background: var(--red-soft);
}
.section-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.compact-btn {
  height: 28px;
  padding: 0 11px;
  border-radius: 7px;
  font-size: 12px;
}
.btn-quiet {
  border-color: transparent;
  background: none;
  color: var(--ink-2);
}
.btn-quiet:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: transparent;
  color: var(--ink);
}
.btn-primary-lg {
  height: 34px;
  padding: 0 15px;
  border-radius: 9px;
  font-size: 13px;
}
.dot-err {
  background: var(--red);
}

/* --- Pracovní stůl (PracovniStul.js) — přilepený nahoře v detailu --- */
/* Lepicí pás přes celou šířku detailu (varianta A, 2026-09-22): plné
   pozadí + hrana dole, ať obsah pod ním neprosvítá; karta uvnitř drží šířku
   obsahového sloupce (.ws-detail-in: 920px − 2×28px). */
/* Sticky je na .ws-stul (přímé dítě rolujícího panelu) — obal s výškou
   přesně pásu by sticky "neměl kam jet". .pracovni-stul-wrap je jen vzhled. */
/* Lepí se jen na desktopu (detail roluje sám, lišta je mimo něj) — na
   mobilu by stůl sežral půlku obrazovky, tam roluje s obsahem. */
@media (min-width: 1024px) {
  .ws-stul {
    position: sticky;
    top: 0;
    z-index: 10;
  }
}
.pracovni-stul-wrap {
  padding: 20px 28px 14px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 12px -12px rgba(17, 20, 23, 0.16);
}
@media (max-width: 720px) {
  .pracovni-stul-wrap {
    padding: 14px 14px 12px;
  }
}
.pracovni-stul {
  max-width: 864px;
  margin-inline: auto;
  border-radius: 14px;
  box-shadow: var(--shadow);
}
/* první blok obsahu pod pásem potřebuje vlastní odstup (dřív ho dával pás) */
.ws-detail-in > .round-detail,
.ws-detail-in > .detail-empty {
  margin-top: 18px;
}
.ps-in {
  padding: 14px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ps-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.ps-head .section-title {
  color: var(--ink-2);
}
.ps-count {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--ink-3);
}
/* vložené podklady (bloky) nad polem — co je od uživatele, je jen v poli */
.ps-blocks {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ps-blocks[hidden] {
  display: none;
}
.ps-block {
  border-left: 3px solid var(--line-2);
  background: var(--surface-2);
  border-radius: 0 8px 8px 0;
  padding: 6px 8px 7px 10px;
}
.ps-block-hd {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.ps-block-acts {
  margin-left: auto;
  display: flex;
  gap: 2px;
}
.ps-block-acts .mini {
  width: 22px;
  height: 22px;
}
.ps-block-t {
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink-2);
  white-space: pre-wrap;
  max-height: 4.4em;
  overflow: hidden;
  cursor: pointer;
}
.ps-block-t.is-open {
  max-height: none;
}
.ps-textarea {
  width: 100%;
  min-height: 72px;
  resize: vertical;
  display: block;
  border: none;
  background: none;
  padding: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
}
.ps-textarea:focus {
  outline: none;
}
.ps-textarea::placeholder {
  color: var(--ink-3);
}
.ps-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.ps-who {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.ps-who .section-title {
  margin-right: 4px;
}
/* boxy žáků + Učitel (2026-09-22): ☑ = účast v dalším kole, klik na box = modál */
.zak-box {
  display: flex;
  align-items: stretch;
  min-width: 150px;
  border-radius: 9px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  cursor: pointer;
  user-select: none;
}
.zak-box:hover {
  border-color: var(--ink-3);
}
.zak-box:focus-visible {
  outline: 2px solid var(--ink-3);
  outline-offset: 1px;
}
.zak-chk {
  display: grid;
  place-items: center;
  padding: 0 6px 0 9px;
  border-right: 1px solid var(--line);
  cursor: pointer;
}
.zak-chk input {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--ink);
  cursor: pointer;
}
.zak-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
  padding: 5px 11px 5px 9px;
  min-width: 0;
}
.zak-n {
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.zak-caps {
  display: inline-flex;
  gap: 3px;
  margin-left: 6px;
  font-size: 11px;
  opacity: 0.8;
  vertical-align: 1px;
}
.check-item .zak-caps {
  margin-left: auto;
}
.zm-sum .zak-caps {
  gap: 10px;
  font-size: 12px;
}
.zak-s {
  font-size: 11px;
  color: var(--ink-3);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.zak-box.is-off {
  border-style: dashed;
}
.zak-box.is-off .zak-n {
  color: var(--ink-3);
  font-weight: 500;
}
.zak-box.is-busy .zak-s {
  color: var(--amber);
  font-weight: 600;
}
.zak-box.is-busy {
  border-color: var(--amber);
  animation: zak-pulse 1.6s ease-in-out infinite;
}
@keyframes zak-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--amber) 35%, transparent);
  }
  55% {
    box-shadow: 0 0 0 5px transparent;
  }
}
.zak-box.is-ok .zak-s {
  color: var(--green);
}
.zak-box.is-err .zak-s {
  color: var(--red);
}
/* Učitel — stejný box jako žáci, jen grafitová levá linka (stejný jazyk jako
   bloky na stole / "Vloženo": žák zelená, učitel grafit, nápad amber). */
.zak-box.is-teacher {
  border-left: 3px solid var(--teacher-bg);
}
.zak-box.is-teacher .zak-main {
  padding-left: 11px;
}
/* proužek postupu pod boxy, jen dokud kolo běží */
.ps-progress {
  flex-basis: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  color: var(--ink-3);
}
.ps-progress[hidden] {
  display: none;
}
.ps-progress-k {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--amber);
  padding: 2px 0;
}
.ps-progress-k:hover {
  text-decoration: underline;
}
.ps-bar {
  flex: 1 1 120px;
  max-width: 260px;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  overflow: hidden;
}
.ps-bar i {
  display: block;
  height: 100%;
  background: var(--amber);
  transition: width 0.4s ease;
}
.ps-acts {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
}
.ps-hint {
  font-size: 11.5px;
  color: var(--ink-3);
}
.ps-hint.is-warn {
  color: var(--amber);
}

/* --- detail kola (RoundDetail.js, AnswerRow.js) --- */
.round-detail {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.detail-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--ink-3);
  font-size: 13.5px;
}
.round-hd {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.round-hd h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--ink-2);
}
.state.is-run {
  background: var(--amber-soft);
  color: var(--amber);
}
.state.is-done {
  background: var(--green-soft);
  color: var(--green);
}
.round-meta {
  margin-left: auto;
  font-size: 12px;
  color: var(--ink-3);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.question {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  padding: 14px 16px;
  white-space: pre-wrap;
}

/* shrnutí učitele — varianta A (2026-09-22): grafitová inverze přes tokeny
   --teacher-* (černá byla "moc", světle šedá "málo"). */
.teacher {
  background: var(--teacher-bg);
  color: var(--teacher-ink);
  border-radius: 14px;
  padding: 18px 20px 16px;
}
.teacher-hd {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.teacher-hd .section-title {
  color: var(--teacher-mute);
}
.teacher-state {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--teacher-line);
  color: var(--teacher-mute);
}
.agree {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.agree-bar {
  width: 80px;
  height: 4px;
  border-radius: 2px;
  background: var(--teacher-line);
  overflow: hidden;
}
.agree-bar i {
  display: block;
  height: 100%;
  background: var(--green);
}
.teacher-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  text-wrap: pretty;
  white-space: pre-wrap;
}
.teacher-note {
  margin-top: 8px;
  font-size: 12px;
  color: var(--teacher-mute);
}
.teacher .btn-ghost {
  background: transparent;
  color: var(--teacher-ink);
  border-color: var(--teacher-line);
}
.teacher .btn-ghost:hover:not(:disabled) {
  background: var(--teacher-line);
  border-color: var(--teacher-mute);
}
/* Návrh dalšího zadání — samostatná světlá karta pod tmavým blokem (varianta B). */
.suggest {
  margin-top: 10px;
  padding: 14px 16px;
  border-left: 3px solid var(--teacher-bg);
  border-radius: 6px 12px 12px 6px;
}
.suggest .section-title {
  display: block;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.suggest-t {
  font-size: 14px;
  line-height: 1.55;
  white-space: pre-wrap;
  text-wrap: pretty;
}
.suggest-ft {
  margin-top: 10px;
}
.teacher-ft {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.teacher.is-waiting {
  background: var(--surface);
  color: var(--ink);
  border: 1px dashed var(--line-2);
}
.teacher.is-waiting .section-title {
  color: var(--ink-3);
}
.teacher.is-waiting .teacher-text {
  color: var(--ink-3);
  font-size: 13.5px;
}
/* Učitel selhal — bílý blok s červenou linkou, důvod čitelně, výrazné "Vyhodnotit znovu". */
.teacher.is-failed {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--red);
  border-left-width: 3px;
}
.teacher.is-failed .section-title {
  color: var(--red);
}
.teacher.is-failed .teacher-text {
  font-size: 13.5px;
  color: var(--ink-2);
}
/* Nápady s kotvou (B2 v2, 2026-09-22): značka v řádku kola, podtržená
   citace po skoku "↩", plovoucí lišta nad označeným textem, modál kotvy. */
.round-row-anchor {
  color: var(--amber);
  font-size: 11px;
  font-weight: 600;
}
mark.anchor-hl {
  background: var(--amber-soft);
  color: inherit;
  border-bottom: 2px solid var(--amber);
  border-radius: 2px;
  box-shadow: 0 0 0 2px var(--amber-soft);
}
.teacher mark.anchor-hl {
  background: var(--teacher-line);
  border-bottom-color: currentColor;
  box-shadow: 0 0 0 2px var(--teacher-line);
}
.sel-toolbar {
  position: fixed;
  z-index: 200; /* nad modálem (100) — lišta funguje i v modálu žáka */
  display: flex;
  gap: 2px;
  padding: 3px;
  border-radius: 9px;
  background: var(--inv);
  color: var(--inv-ink);
  box-shadow: var(--shadow);
}
.sel-toolbar[hidden] {
  display: none;
}
.sel-btn {
  height: 26px;
  padding: 0 9px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: inherit;
  white-space: nowrap;
}
.sel-btn:hover {
  background: var(--inv-line);
}
.anchor-cite {
  margin: 0;
  padding: 8px 10px;
  border-left: 3px solid var(--amber);
  background: var(--surface-2);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
  white-space: pre-wrap;
  max-height: 180px;
  overflow: auto;
}
.anchor-note {
  min-height: 64px;
  font-size: 13px;
}
/* Zdroj vloženého podkladu — barva levé linky (Pracovní stůl i zadání kola). */
.src-response,
.src-excerpt {
  border-left-color: var(--green);
}
.src-teacher {
  border-left-color: var(--teacher-bg);
}
.src-idea {
  border-left-color: var(--amber);
}
/* Vložené podklady v zadání kola (RoundDetail.js) */
.question-t {
  white-space: pre-wrap;
}
.question-t.is-empty {
  color: var(--ink-3);
  font-weight: 400;
  font-size: 14px;
}
.inserted {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 400;
  font-size: 13px;
}
.inserted[hidden] {
  display: none;
}
.inserted-hd {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.inserted-hd .section-title {
  margin-right: 4px;
}
.inserted-chip {
  padding: 3px 10px;
  cursor: pointer;
}
.inserted-chip:hover,
.inserted-chip[aria-pressed='true'] {
  border-color: var(--ink-3);
}
.inserted-t {
  padding: 6px 10px;
  border-left: 3px solid var(--line-2);
  background: var(--surface-2);
  border-radius: 0 8px 8px 0;
  line-height: 1.5;
  color: var(--ink-2);
  white-space: pre-wrap;
}
.inserted-t[hidden] {
  display: none;
}
.inserted-t-hd {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 3px;
}
/* Dialog s Učitelem (B3) — vlákno pod shrnutím, otázky vpravo, odpovědi
   Učitele s grafitovou linkou (stejný jazyk jako bloky / Vloženo). */
.dialog {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dialog[hidden] {
  display: none;
}
.dlg-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dlg-msg {
  max-width: 88%;
  padding: 9px 12px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.55;
}
.dlg-msg.is-user {
  align-self: flex-end;
  background: var(--surface-2);
  border-bottom-right-radius: 4px;
}
.dlg-msg.is-teacher {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teacher-bg);
  border-radius: 4px 12px 12px 4px;
}
.dlg-msg.is-pending {
  color: var(--ink-3);
  border-style: dashed;
  border-left-style: solid;
}
.dlg-msg.is-error {
  border-color: var(--red);
  border-left-color: var(--red);
}
.dlg-t {
  white-space: pre-wrap;
  text-wrap: pretty;
}
.dlg-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 5px;
  font-size: 11px;
  color: var(--ink-3);
}
.dlg-meta .mini {
  margin-left: auto;
}
.dlg-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.dlg-form[hidden] {
  display: none;
}
.dlg-input {
  min-height: 56px;
  font-size: 13.5px;
}
.dlg-form-acts {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}
.dlg-hint {
  font-size: 11.5px;
  color: var(--ink-3);
}
.round-row-dlg {
  color: var(--ink-3);
  font-size: 11px;
  font-weight: 600;
}
/* Větve (2026-09-22): strom v levém panelu, štítek v hlavičce kola, zděděná kola v seznamu. */
.branch-tree {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.br-item {
  display: flex;
  align-items: center;
  gap: 2px;
  padding-left: calc(var(--depth, 0) * 14px);
}
.br-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  padding: 6px 8px;
  border-radius: 8px;
  text-align: left;
}
.br-main:hover {
  background: var(--surface-2);
}
.br-item.is-active .br-main {
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.br-n {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
.br-item.is-active .br-n {
  color: var(--ink);
  font-weight: 600;
}
.br-n b {
  color: var(--amber);
  font-size: 11px;
  font-weight: 700;
}
.br-m {
  font-size: 11px;
  color: var(--ink-3);
}
.br-item .mini {
  opacity: 0;
}
.br-item:hover .mini,
.br-item .mini:focus-visible {
  opacity: 1;
}
.branch-tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--amber);
  font-size: 11.5px;
  font-weight: 600;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.round-hd-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-basis: 100%;
}
.round-row.is-inherited {
  opacity: 0.62;
}
.round-row.is-inherited[aria-selected='true'] {
  opacity: 0.85;
}
.round-row-inh {
  color: var(--ink-3);
  font-size: 10.5px;
  font-weight: 500;
}
/* Historie vyhodnocení (B1b) — záložky nad blokem učitele, platné = nejnovější. */
.eval-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: -8px;
}
.eval-tabs[hidden] {
  display: none;
}
.eval-tab {
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.eval-tab:hover {
  color: var(--ink);
  border-color: var(--ink-3);
}
.eval-tab.is-on {
  background: var(--teacher-bg);
  color: var(--teacher-ink);
  border-color: var(--teacher-bg);
  font-weight: 600;
}
/* Rozpor mezi odpověďmi (B1) — uvnitř bloku učitele, štítek oranžově. */
.conflict {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--teacher-line);
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
}
.conflict b {
  color: var(--amber);
  font-weight: 700;
}
.teacher.is-failed .conflict {
  border-color: var(--line);
}
/* "Vyhodnotit znovu" + ▾ (volba délky shrnutí) — split button s nabídkou. */
.split {
  position: relative;
  display: inline-flex;
}
.split-main {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}
.split-arrow {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: -1px;
  padding: 0 8px;
}
.split-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 20;
  min-width: 250px;
  padding: 4px;
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.split.is-open .split-menu {
  display: block;
}
.split-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
}
.split-item:hover {
  background: var(--surface-2);
}
.teacher-err {
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--red-soft);
  color: var(--ink);
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* odpovědi žáků — řádky, ne karty */
.answers-hd {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: -10px;
}
.answers-hd .section-title {
  color: var(--ink-2);
}
.answers-n {
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.answers {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
}
.answers:empty {
  display: none;
}
.ans {
  border-bottom: 1px solid var(--line);
}
.ans:last-child {
  border-bottom: none;
}
.ans-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto 18px;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 13px 16px;
  cursor: pointer;
}
.ans-row.is-static {
  cursor: default;
}
.ans-row:hover {
  background: var(--surface-2);
}
.ans-n {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
  min-width: 0;
}
.ans-n span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ans-p {
  font-size: 13px;
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ans-p.is-busy {
  color: var(--amber);
  font-weight: 500;
}
.ans-p.is-err {
  color: var(--red);
  font-weight: 500;
}
.ans-row[aria-expanded='true'] .ans-p {
  visibility: hidden;
}
.stars {
  display: flex;
  gap: 1px;
}
.grade-star {
  color: var(--line-2);
  font-size: 13px;
  line-height: 1;
  padding: 0 1px;
}
.grade-star:hover {
  color: var(--amber);
}
.grade-star-active {
  color: var(--amber);
}
.caret {
  color: var(--ink-3);
  font-size: 10px;
  transition: transform 0.15s ease;
  justify-self: end;
}
.ans-row[aria-expanded='true'] .caret {
  transform: rotate(90deg);
}
.ans-body {
  padding: 0 16px 16px 150px;
}
.ans-body[hidden] {
  display: none;
}
.ans-body-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  text-wrap: pretty;
}
.ans-body-err {
  color: var(--red);
  font-size: 13px;
}
.ans-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
@media (max-width: 720px) {
  .ans-row {
    grid-template-columns: minmax(0, 1fr) auto 18px;
  }
  .ans-row .ans-p {
    display: none;
  }
  .ans-body {
    padding-left: 16px;
  }
  .round-hd h2 {
    font-size: 18px;
  }
  .question {
    font-size: 15px;
  }
}

/* --- náhled souboru (FilePreviewModal.js) --- */
.preview-modal-box {
  max-width: 700px;
  width: 100%;
  max-height: 85vh;
  overflow: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.preview-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.preview-modal-title {
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.preview-modal-image {
  max-width: 100%;
  border-radius: 6px;
}
.preview-modal-text {
  font-size: 12.5px;
  white-space: pre-wrap;
  margin: 0;
}

/* ══════════════════════════════════════════════════════════════════════
   Fáze 4 — dotažení: modály, mobil, drobnosti detailu
   ══════════════════════════════════════════════════════════════════════ */
.modal-box {
  border-radius: 14px;
  padding: 22px;
  gap: 18px;
}
.modal-header {
  gap: 12px;
}
.modal-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.modal-close {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  color: var(--ink-3);
  font-size: 12px;
}
.modal-close:hover {
  background: var(--surface-2);
  color: var(--ink);
}
.modal-actions {
  gap: 8px;
}
.preview-modal-box {
  padding: 18px 22px 22px;
  gap: 12px;
}
.preview-modal-title {
  font-size: 15px;
  font-weight: 700;
}
.preview-modal-text {
  font-size: 13.5px;
  line-height: 1.6;
  font-family: var(--font);
}

/* mobil: vysunutý panel má stín, lišta se vejde i na 400 px */
.side-panel-open {
  box-shadow: var(--shadow);
}
@media (min-width: 1024px) {
  .side-panel-open {
    box-shadow: none;
  }
}
@media (max-width: 560px) {
  .topbar {
    padding: 0 10px;
    gap: 8px;
  }
  .topbar-left {
    gap: 10px;
  }
  .topnav {
    display: none; /* jediná položka je Projekty = klik na značku */
  }
  .ps-hint {
    display: none;
  }
  .ps-in {
    padding: 12px 12px 10px;
  }
  .teacher {
    padding: 14px 16px 14px;
  }
  .round-hd .round-meta {
    margin-left: 0;
    width: 100%;
  }
  .tabpanel {
    padding: 6px;
  }
}
@media (max-width: 1023px) {
  .ws-side {
    padding-top: 16px;
  }
}

/* detail: hvězdy reagují i na klávesnici, řádek bez těla nemá kurzor ruky */
.grade-star:focus-visible {
  outline-offset: 0;
  border-radius: 3px;
}
.ans-row.is-static .caret {
  visibility: hidden;
}

/* Mobil — hlavička Správy: základní pravidlo .admin-page .dashboard-header (align-items: flex-end)
   je později v souboru než blok pro 720px, proto přepis až tady na konci (2026-09-24). */
@media (max-width: 720px) {
  .admin-page .dashboard-header {
    align-items: stretch;
  }
  .admin-page .dashboard-header > div {
    text-align: left;
  }
}
