/* Albert AAC — styly
   Principy:
   - velké dotykové plochy (min. 72 px)
   - vysoký kontrast, málo textu
   - minimální vizuální šum, žádné animace co ruší
   - safe-area padding pro iPhone s zářezem
*/

:root {
  --bg:        #f5f6fb;
  --surface:   #ffffff;
  --ink:       #0f172a;
  --muted:     #64748b;
  --primary:   #4f46e5;
  --primary-2: #4338ca;
  --accent:    #f59e0b;
  --ok:        #16a34a;
  --danger:    #dc2626;
  --radius-l:  20px;
  --radius-m:  14px;
  --radius-s:  10px;
  --shadow:    0 6px 20px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(15, 23, 42, 0.04);
  --cat-basic:       #dbeafe;
  --cat-emotions:    #fce7f3;
  --cat-activities:  #dcfce7;
  --cat-custom:      #fef3c7;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

.hidden { display: none !important; }
.muted  { color: var(--muted); font-size: 0.9rem; }
.error  { color: var(--danger); min-height: 1.2em; }
.spacer { flex: 1; }

/* ====================== LOGIN =========================================== */
#login-screen {
  min-height: 100dvh;
  display: grid; place-items: center;
  padding: env(safe-area-inset-top) 1rem env(safe-area-inset-bottom);
}
.login-card {
  background: var(--surface);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
  display: flex; flex-direction: column; gap: 0.85rem;
}
.login-logo {
  font-size: 3rem; text-align: center;
}
.login-card h1 { margin: 0; text-align: center; font-size: 1.5rem; }
label { display: flex; flex-direction: column; gap: 0.35rem; font-weight: 600; font-size: 0.95rem; }
input[type=text], input[type=number], select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-m);
  border: 2px solid #e2e8f0;
  font-size: 1.05rem;
  background: var(--surface);
  color: var(--ink);
}
input:focus, select:focus { outline: none; border-color: var(--primary); }

/* ====================== Buttons ========================================= */
button {
  font-family: inherit;
  cursor: pointer;
}
.primary {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-m);
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  font-weight: 700;
}
.primary:hover { background: var(--primary-2); }
.primary.big { padding: 1.1rem; font-size: 1.15rem; }

.pill {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  border: 2px solid transparent;
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: var(--shadow);
}
.pill.primary { background: var(--primary); color: white; }
.pill.ghost   { background: transparent; box-shadow: none; color: var(--muted); }
.pill.danger  { background: var(--danger); color: white; }

/* ====================== Hlavní obrazovka ================================ */
#app-screen {
  min-height: 100dvh;
  display: flex; flex-direction: column;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}
.top-bar {
  position: sticky; top: 0; z-index: 5;
  display: flex; gap: 0.5rem; align-items: center;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid #e2e8f0;
}
.phrase-strip {
  flex: 1;
  min-height: 52px;
  display: flex; gap: 0.4rem; align-items: center; overflow-x: auto;
  padding: 0.35rem;
  background: #eef2ff;
  border-radius: var(--radius-m);
  color: var(--ink);
  font-weight: 600;
}
.phrase-strip:empty::before {
  content: "Tapni obrázek a pusť se do mluvení…";
  color: var(--muted); padding: 0 0.5rem; font-weight: 500;
}
.phrase-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.35rem 0.5rem; background: white;
  border-radius: var(--radius-s);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  white-space: nowrap;
}
.phrase-chip .emoji-or-photo { width: 28px; height: 28px; border-radius: 6px; display: inline-grid; place-items: center; background: #f1f5f9; }
.phrase-chip img { width: 28px; height: 28px; object-fit: cover; border-radius: 6px; }

.top-actions { display: flex; gap: 0.5rem; }

.tabs {
  display: flex; gap: 0.4rem; overflow-x: auto;
  padding: 0.6rem 1rem;
  background: var(--bg);
}
.tab {
  flex: 1; min-width: 110px;
  padding: 0.7rem 0.9rem;
  background: var(--surface);
  border: 2px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  color: var(--muted);
  font-size: 1rem;
  box-shadow: var(--shadow);
}
.tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.board {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.85rem;
  padding: 1rem;
}
.tile {
  aspect-ratio: 1 / 1;
  min-height: 130px;
  border: none;
  border-radius: var(--radius-l);
  background: var(--surface);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem;
  cursor: pointer;
  transition: transform 0.08s ease;
}
.tile:active { transform: scale(0.96); }
.tile[data-category="basic"]      { background: var(--cat-basic); }
.tile[data-category="emotions"]   { background: var(--cat-emotions); }
.tile[data-category="activities"] { background: var(--cat-activities); }
.tile[data-category="custom"]     { background: var(--cat-custom); }
.tile .emoji { font-size: 3rem; line-height: 1; }
.tile img.photo { width: 100%; flex: 1; object-fit: cover; border-radius: var(--radius-m); }
.tile .label { font-weight: 700; font-size: 0.95rem; text-align: center; color: var(--ink); }

.board-empty {
  grid-column: 1 / -1;
  display: grid; place-items: center; gap: 0.5rem;
  padding: 2rem; color: var(--muted); text-align: center;
}

.bottom-bar {
  position: sticky; bottom: 0; z-index: 5;
  display: flex; gap: 0.5rem; align-items: center;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-top: 1px solid #e2e8f0;
  overflow-x: auto;
}

/* ====================== Modaly ========================================= */
.modal {
  border: none; padding: 0; border-radius: var(--radius-l);
  width: min(100%, 560px);
  max-height: 92dvh;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.2);
}
.modal.wide { width: min(100%, 820px); }
.modal::backdrop { background: rgba(15, 23, 42, 0.5); }
.modal header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.2rem;
  background: var(--surface);
  border-bottom: 1px solid #e2e8f0;
}
.modal header h2 { margin: 0; font-size: 1.2rem; }
.modal .close {
  background: transparent; border: none; font-size: 1.2rem; padding: 0.3rem 0.6rem;
  color: var(--muted); cursor: pointer;
}
.modal-body {
  padding: 1rem 1.2rem;
  overflow: auto;
  display: flex; flex-direction: column; gap: 0.85rem;
  max-height: calc(92dvh - 56px);
  background: var(--surface);
}
.modal-footer {
  display: flex; gap: 0.5rem; align-items: center;
  padding-top: 0.5rem;
  border-top: 1px solid #e2e8f0;
}

/* Statistiky */
.stats-list { padding-left: 1.2rem; margin: 0; display: flex; flex-direction: column; gap: 0.3rem; }
.stats-list li { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.35rem 0; border-bottom: 1px dashed #e2e8f0; }
.stats-list .count { color: var(--muted); font-variant-numeric: tabular-nums; }

/* Editor slovníku */
.editor-toolbar { display: flex; gap: 0.5rem; align-items: end; }
.editor-toolbar select { flex: 1; }
.editor-list {
  display: grid; gap: 0.5rem;
}
.editor-row {
  display: flex; gap: 0.6rem; align-items: center;
  padding: 0.5rem;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-m);
  background: var(--surface);
}
.editor-row .thumb {
  width: 52px; height: 52px;
  border-radius: var(--radius-s);
  display: grid; place-items: center;
  font-size: 1.8rem; background: #f1f5f9;
}
.editor-row .thumb img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-s); }
.editor-row .meta  { flex: 1; }
.editor-row .meta strong { display: block; }
.editor-row .meta small  { color: var(--muted); }

/* Formulář slova */
.media-row { display: flex; gap: 1rem; }
.media-col { flex: 1; display: flex; flex-direction: column; gap: 0.35rem; }
.media-preview {
  aspect-ratio: 1 / 1;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-m);
  display: grid; place-items: center;
  font-size: 2rem;
  color: var(--muted);
  overflow: hidden;
}
.media-preview img { width: 100%; height: 100%; object-fit: cover; }
.media-preview.recording { border-color: var(--danger); color: var(--danger); }
.media-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.media-actions .pill { flex: 1; justify-content: center; }
.media-actions label.pill { cursor: pointer; }

/* Pexeso */
.pexeso-toolbar { display: flex; gap: 0.5rem; align-items: end; flex-wrap: wrap; }
.pexeso-toolbar label { flex: 1; min-width: 140px; }
.pexeso-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}
@media (min-width: 640px) {
  .pexeso-board.size-16 { grid-template-columns: repeat(4, 1fr); }
  .pexeso-board.size-20 { grid-template-columns: repeat(5, 1fr); }
}
.pexeso-card {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-m);
  background: var(--primary);
  color: white;
  font-size: 1.8rem;
  display: grid; place-items: center;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease;
  box-shadow: var(--shadow);
}
.pexeso-card:active { transform: scale(0.95); }
.pexeso-card.revealed {
  background: var(--surface);
  color: var(--ink);
  overflow: hidden;
  padding: 4px;
}
.pexeso-card.matched {
  background: var(--ok);
  color: white;
  opacity: 0.7;
}
.pexeso-card img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.pexeso-card .big-emoji { font-size: 2.2rem; }
.pexeso-card .sound-icon { font-size: 2rem; }

/* ====================== Range inputy =================================== */
input[type=range] {
  width: 100%;
  accent-color: var(--primary);
}