/* ========== Цвета ========== */
:root {
  --bg: #F3EFE7;
  --panel: #FFFFFF;
  --ink: #1E1C19;
  --muted: #7A7368;
  --line: #DCD4C5;
  --key: #FFFFFF;
  --key-ink: #1E1C19;
  --nav: #E6E0D3;
  --sug: #E4EDFA;
  --sug-ink: #173E73;
  --accent: #1F5FBF;
  --yes: #2E7D4F;
  --no: #B3392F;
  --call: #C25E00;
  --focus: #F2B705;

  --radius: 20px;
  --gap: 12px;
  --scale: 1;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #111316;
  --panel: #1A1D22;
  --ink: #F1ECE3;
  --muted: #9A958C;
  --line: #30353D;
  --key: #23272E;
  --key-ink: #F1ECE3;
  --nav: #2C3139;
  --sug: #1C2A3E;
  --sug-ink: #C3D8FF;
  --accent: #3B78DE;
  --yes: #2F8A57;
  --no: #C2463B;
  --call: #D2700B;
  color-scheme: dark;
}

/* ========== Основа ========== */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
html, body {
  margin: 0; height: 100%;
  background: var(--bg); color: var(--ink);
  overflow: hidden; overscroll-behavior: none;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-user-select: none; user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
}
button { font: inherit; color: inherit; }

/* ========== Сетка экрана ========== */
.app {
  position: fixed; inset: 0;
  padding:
    max(12px, env(safe-area-inset-top))
    max(12px, env(safe-area-inset-right))
    max(12px, env(safe-area-inset-bottom))
    max(12px, env(safe-area-inset-left));
  display: grid; gap: var(--gap);
  grid-template-columns: minmax(0, 1fr) minmax(170px, 19%);
  grid-template-rows: minmax(110px, 21%) minmax(80px, 13%) minmax(0, 1fr);
  grid-template-areas:
    "msg   side"
    "bar   side"
    "board side";
}
@media (orientation: portrait) {
  .app {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(130px, 17%) minmax(76px, 9%) minmax(0, 1fr) minmax(100px, 12%);
    grid-template-areas: "msg" "bar" "board" "side";
  }
}

/* ========== Кнопка (общая) ========== */
.key {
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  min-width: 0; min-height: 0; padding: 8px;
  border: 2px solid var(--line); border-radius: var(--radius);
  background: var(--key); color: var(--key-ink);
  font-weight: 600; line-height: 1.1; text-align: center;
  cursor: pointer;
}
/* заполнение при задержке взгляда */
.key::after {
  content: ""; position: absolute; inset: 0;
  background: var(--accent); opacity: .25;
  transform: scaleY(var(--p, 0)); transform-origin: bottom;
  pointer-events: none;
}
.key.dwelling { border-color: var(--accent); box-shadow: inset 0 0 0 3px var(--accent); }
@media (hover: hover) {
  .key:hover { border-color: var(--focus); box-shadow: inset 0 0 0 3px var(--focus); }
}
.key.fired { animation: fired .35s ease-out; }
@keyframes fired {
  0%   { filter: brightness(1.3); transform: scale(.97); }
  100% { filter: none; transform: none; }
}

/* ========== Сообщение ========== */
.msg {
  grid-area: msg; position: relative;
  display: flex; align-items: center;
  padding: 12px 70px 12px 24px;
  background: var(--panel);
  border: 2px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
}
.msg-text {
  width: 100%; max-height: 100%; overflow: hidden;
  white-space: pre-wrap; overflow-wrap: anywhere;
  font-size: calc(var(--scale) * var(--k, 1) * min(7.4vmin, 76px));
  font-weight: 600; line-height: 1.15;
}
.msg-text.spoken { color: var(--accent); }
.placeholder { color: var(--muted); font-weight: 500; font-size: .55em; }
.caret {
  display: inline-block; width: .08em; height: 1em;
  margin-left: .04em; vertical-align: -.14em;
  background: var(--accent); border-radius: 2px;
}
.msg-flash {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 0 28px; border-radius: inherit;
  background: var(--accent); color: #fff;
  font-size: calc(var(--scale) * min(8vmin, 84px)); font-weight: 700;
  text-align: center; line-height: 1.1;
}
.msg-flash.long { font-size: calc(var(--scale) * min(5.2vmin, 54px)); }
.msg-flash.yes  { background: var(--yes); }
.msg-flash.no   { background: var(--no); }
.msg-flash.call { background: var(--call); }

.gear {
  position: absolute; top: 8px; right: 8px; z-index: 2;
  width: 48px; height: 48px; padding: 0;
  display: grid; place-items: center;
  border: none; border-radius: 50%;
  background: transparent; color: var(--muted); opacity: .5;
}
.gear svg { width: 26px; height: 26px; }
.gear.holding { background: var(--nav); opacity: 1; transition: background 1s; }

/* ========== Подсказки / разделы фраз ========== */
.bar {
  grid-area: bar; min-height: 0;
  display: grid; gap: var(--gap);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.sug {
  background: var(--sug); color: var(--sug-ink); border-color: transparent;
  font-size: calc(var(--scale) * min(4.8vmin, 48px));
}
.sug.long  { font-size: calc(var(--scale) * min(3.7vmin, 38px)); }
.sug.xlong { font-size: calc(var(--scale) * min(2.9vmin, 30px)); }
.sug.empty { background: transparent; border: 2px dashed var(--line); cursor: default; }
.tab {
  background: var(--nav);
  font-size: calc(var(--scale) * min(3.1vmin, 32px));
}
.tab.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ========== Клавиатура и фразы ========== */
.board {
  grid-area: board; min-height: 0;
  display: grid; gap: var(--gap);
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, .8fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
}
.board.phrases {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(0, 1fr));
}

.group .mini {
  display: grid; width: 100%; height: 100%;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  place-items: center;
  font-size: calc(var(--scale) * min(6.6vmin, 68px));
}
.letter { font-size: calc(var(--scale) * min(17vmin, 170px)); }
.letter.punct { font-size: calc(var(--scale) * min(20vmin, 200px)); }

.nav {
  flex-direction: column; gap: 8px;
  background: var(--nav);
  font-size: calc(var(--scale) * min(3.6vmin, 38px));
}
.nav svg { width: 1.3em; height: 1.3em; }
.nav.back { font-size: calc(var(--scale) * min(4.2vmin, 44px)); }

.phrase { flex-direction: column; gap: 6px; }
.phrase .pl { font-size: calc(var(--scale) * min(3.9vmin, 40px)); }
.phrase .pt {
  font-size: calc(var(--scale) * min(2.1vmin, 22px));
  font-weight: 500; color: var(--muted);
}
.phrase.recent .pl { font-size: calc(var(--scale) * min(3.3vmin, 34px)); font-weight: 600; }
.phrase .voice {
  position: absolute; top: 8px; right: 10px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--yes);
}
.hint {
  grid-column: 1 / span 3; grid-row: 1 / span 3;
  display: flex; align-items: center; justify-content: center;
  padding: 24px; text-align: center;
  color: var(--muted); font-size: calc(var(--scale) * min(3.2vmin, 32px));
  border: 2px dashed var(--line); border-radius: var(--radius);
}

/* ========== Правая колонка ========== */
.side {
  grid-area: side; min-height: 0;
  display: flex; flex-direction: column; gap: var(--gap);
}
.side .key {
  flex: 1 1 0; flex-direction: column; gap: 4px;
  border-color: transparent; color: #fff;
  font-size: calc(var(--scale) * min(3.7vmin, 38px));
}
.side .key svg { width: 1.15em; height: 1.15em; flex: none; }
.k-speak { flex-grow: 1.6 !important; background: var(--accent); }
.k-erase { background: var(--nav); color: var(--ink) !important; }
.k-clear {
  flex-grow: .6 !important; background: var(--nav); color: var(--muted) !important;
  font-size: calc(var(--scale) * min(2.6vmin, 27px)) !important;
}
.k-clear.armed { background: var(--no); color: #fff !important; }
.k-yes  { background: var(--yes); }
.k-no   { background: var(--no); }
.k-call { background: var(--call); }

@media (orientation: portrait) {
  .side { flex-direction: row; }
  .k-speak { flex-grow: 1.3 !important; }
  .k-clear { flex-grow: .8 !important; }
  .side .key { font-size: calc(var(--scale) * min(3.4vmin, 36px)); }
}

/* ========== Экран «Начать» ========== */
.start {
  position: fixed; inset: 0; z-index: 50;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px;
  padding: 24px; text-align: center;
  background: var(--bg);
}
.start h1 { margin: 0; font-size: min(10vmin, 96px); }
.start p { margin: 0; max-width: 28em; color: var(--muted); font-size: min(3vmin, 26px); line-height: 1.4; }
.start button {
  padding: .45em 2.2em; border: none; border-radius: 999px;
  background: var(--accent); color: #fff;
  font-size: min(6.5vmin, 60px); font-weight: 700;
}

/* ========== Настройки ========== */
.settings {
  width: min(680px, 94vw); max-height: 90vh;
  padding: 0; border: none; border-radius: 22px;
  background: var(--panel); color: var(--ink);
  -webkit-user-select: auto; user-select: auto;
}
.settings::backdrop { background: rgba(0, 0, 0, .45); }
.set-form { display: flex; flex-direction: column; }
.set-head {
  position: sticky; top: 0; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.set-head h2 { margin: 0; font-size: 26px; }
.set-done {
  padding: 10px 22px; border: none; border-radius: 999px;
  background: var(--accent); color: #fff; font-size: 18px; font-weight: 700;
}
.set-sec { padding: 16px 22px 20px; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.set-sec:last-child { border-bottom: none; }
.set-sec h3 { margin: 0; font-size: 15px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.radio, .check { display: flex; gap: 12px; align-items: flex-start; font-size: 18px; line-height: 1.35; }
.radio input, .check input { width: 24px; height: 24px; margin: 1px 0 0; flex: none; accent-color: var(--accent); }
.range, .select { display: flex; flex-direction: column; gap: 8px; font-size: 18px; }
.range span, .select span { display: flex; justify-content: space-between; gap: 12px; }
.range output { color: var(--accent); font-weight: 700; font-variant-numeric: tabular-nums; }
.range input { width: 100%; height: 32px; accent-color: var(--accent); }
.select select {
  padding: 10px 12px; font-size: 18px;
  border: 2px solid var(--line); border-radius: 12px;
  background: var(--key); color: var(--ink);
}
.note { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.4; }
.set-btn {
  align-self: flex-start; padding: 10px 18px;
  border: 2px solid var(--line); border-radius: 12px;
  background: var(--key); font-size: 17px; font-weight: 600;
}
.set-btn.danger { color: var(--no); }

/* ========== Всплывающее сообщение ========== */
.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 60;
  transform: translateX(-50%);
  max-width: 90vw; padding: 14px 22px; border-radius: 14px;
  background: var(--ink); color: var(--bg);
  font-size: 19px; font-weight: 600; text-align: center;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .25);
}