/* ЛЕНТА — запись и расшифровка встреч
   Фирменный артефакт: двухканальная лента-осциллограмма.
   Янтарь = мой голос, сталь = собеседники. Цвет несёт смысл, не украшает. */

:root {
  --ground:     #e7e9e2;
  --surface:    #f3f4ee;
  --sunk:       #dbddd4;
  --hairline:   #c9ccc0;
  --ink:        #171911;
  --ink-soft:   #53574a;
  --ink-faint:  #5b5f53;
  --me:         #8f4f12;
  --them:       #35657a;
  --live:       #b3341e;
  --ok:         #4b6b3e;

  --display: "Bahnschrift", "DIN Alternate", "Segoe UI Variable Display", system-ui, sans-serif;
  --body:    "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --data:    "Cascadia Mono", Consolas, ui-monospace, monospace;

  --gutter: clamp(1rem, 4vw, 3rem);
  --measure: 68rem;
}

/* Светлая тема — основная и по умолчанию. Тёмная включается только
   явным data-theme="dark", системную настройку не слушаем. */

:root[data-theme="light"] {
  --ground: #e7e9e2; --surface: #f3f4ee; --sunk: #dbddd4; --hairline: #c9ccc0;
  --ink: #171911; --ink-soft: #53574a; --ink-faint: #5b5f53;
  --me: #8f4f12; --them: #35657a; --live: #b3341e; --ok: #4b6b3e;
}

:root[data-theme="dark"] {
  --ground: #191b16; --surface: #20231c; --sunk: #121410; --hairline: #343829;
  --ink: #e7e9de; --ink-soft: #a5a996; --ink-faint: #8b8f7e;
  --me: #db9647; --them: #78aec3; --live: #e0603f; --ok: #8fb37c;
}

* { box-sizing: border-box; }

html {
  background: var(--ground);
  color-scheme: light;
}

:root[data-theme="dark"] { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: transparent;
  -webkit-font-smoothing: antialiased;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}

.defs { position: absolute; width: 0; height: 0; }

/* ---------- дека ---------- */

.deck {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--hairline);
}

.deck-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0.75rem var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 4vw, 2.5rem);
}

.mark {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.mark-glyph {
  width: 26px;
  height: 26px;
  fill: var(--ink);
}

.mark-slot { fill: var(--ground); }

.mark-name {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.views {
  display: flex;
  gap: 0.15rem;
  margin-right: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.view-tab {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: var(--display);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
}

.view-tab:hover { color: var(--ink-soft); }

.view-tab.is-active { color: var(--ink); }

.view-tab.is-active::before {
  content: "";
  position: absolute;
  left: -0.05rem;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  background: var(--me);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.deck-status { flex-shrink: 0; }

.stat {
  font-family: var(--data);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

.stat[data-tone="busy"] { color: var(--me); }
.stat[data-tone="ok"] { color: var(--ok); }
.stat[data-tone="bad"] { color: var(--live); }

/* ---------- лента ---------- */

.ribbon-zone {
  position: relative;
  background: var(--sunk);
  border-bottom: 1px solid var(--hairline);
}

.ribbon {
  display: block;
  width: 100%;
  height: clamp(112px, 17vh, 160px);
}

.ribbon-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  pointer-events: none;
}

.ribbon-readout {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.4rem;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  pointer-events: none;
}

.deckbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  pointer-events: auto;
}

.play {
  appearance: none;
  border: 0;
  background: var(--ink);
  color: var(--ground);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  cursor: pointer;
  clip-path: url(#chamfer);
  flex-shrink: 0;
}

.play:hover { background: color-mix(in srgb, var(--ink) 85%, var(--me)); }
.play:focus-visible { outline: 2px solid var(--me); outline-offset: 3px; }
.play[disabled] { opacity: 0.3; cursor: default; background: var(--ink); }

.play-glyph {
  width: 13px;
  height: 13px;
  fill: currentColor;
}

.play .play-hold { display: none; }
.play.is-playing .play-go { display: none; }
.play.is-playing .play-hold { display: block; }

.clock {
  font-family: var(--data);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
}

.speeds {
  display: flex;
  gap: 0.1rem;
}

.speeds button {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: var(--data);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
  padding: 0.15rem 0.35rem;
  cursor: pointer;
}

.speeds button:hover { color: var(--ink-soft); }
.speeds button.is-active { color: var(--me); }
.speeds button:focus-visible { outline: 2px solid var(--me); outline-offset: 1px; }

.ribbon-legend {
  display: flex;
  gap: 0.9rem;
  font-family: var(--display);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.legend-item { display: flex; align-items: center; gap: 0.3rem; }

.legend-item::before {
  content: "";
  width: 14px;
  height: 3px;
}

.legend-me { color: var(--me); }
.legend-me::before { background: var(--me); }
.legend-them { color: var(--them); }
.legend-them::before { background: var(--them); }

/* ---------- сцена ---------- */

.stage {
  flex: 1;
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter) 5rem;
}

.view { display: none; }
.view.is-active { display: block; }

/* ---------- транспорт ---------- */

.transport {
  display: flex;
  align-items: flex-start;
  gap: clamp(1rem, 3vw, 2rem);
  margin-top: -2.25rem;
  position: relative;
  z-index: 5;
}

.rec {
  appearance: none;
  border: 0;
  cursor: pointer;
  flex-shrink: 0;
  width: 132px;
  height: 112px;
  padding: 0.9rem;
  clip-path: url(#chamfer);
  background: var(--ink);
  color: var(--ground);
  font-family: var(--display);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.03em;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
}
/* Без transition на background: значение приходит из переменной темы,
   и переход замораживает старый цвет при переключении светлая/тёмная. */

.rec:hover { background: color-mix(in srgb, var(--ink) 88%, var(--me)); }

.rec:focus-visible { outline: 3px solid var(--me); outline-offset: 3px; }

.rec-eye {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--me);
}

.rec.is-live { background: var(--live); color: #fff; }
.rec.is-live .rec-eye { background: #fff; animation: pulse 1.4s ease-in-out infinite; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

@media (prefers-reduced-motion: reduce) {
  .rec.is-live .rec-eye { animation: none; }
}

.transport-body {
  padding-top: 2.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  min-width: 0;
}

.transport-lead {
  margin: 0;
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.transport-lead b { color: var(--ink); font-weight: 600; }

.transport-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.meters {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-width: 26rem;
}

.meter { display: flex; align-items: center; gap: 0.6rem; }

.meter-name {
  font-family: var(--display);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  width: 2.4rem;
}

.meter-track {
  flex: 1;
  height: 4px;
  background: var(--sunk);
  overflow: hidden;
}

.meter-track i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--me);
  transition: width 90ms linear;
}

.meter:last-child .meter-track i { background: var(--them); }

/* ---------- управляющие элементы ---------- */

.act {
  appearance: none;
  border: 0;
  border-radius: 2px;
  background: var(--ink);
  color: var(--ground);
  font-family: var(--body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

.act:hover { background: color-mix(in srgb, var(--ink) 85%, var(--me)); }
.act:focus-visible { outline: 3px solid var(--me); outline-offset: 2px; }
.act[disabled] { opacity: 0.45; cursor: default; }

.act-file { display: inline-block; }

.link {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.86rem;
  color: var(--ink-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.link:hover { color: var(--ink); }
.link:focus-visible { outline: 2px solid var(--me); outline-offset: 2px; }

.switch {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.86rem;
  color: var(--ink-soft);
  cursor: pointer;
}

.switch input { accent-color: var(--me); width: 1rem; height: 1rem; }

/* ---------- сообщения ---------- */

.notice {
  margin-top: 1.75rem;
  padding: 0.9rem 1.1rem;
  background: var(--sunk);
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.notice[data-tone="bad"] { color: var(--live); }
.notice b { color: var(--ink); font-weight: 600; }

.step {
  font-size: 0.95rem;
  color: var(--ink);
  font-weight: 600;
}

.step-sub {
  margin-top: 0.15rem;
  font-family: var(--data);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
}

.bar {
  margin-top: 0.6rem;
  height: 3px;
  background: color-mix(in srgb, var(--ink) 12%, transparent);
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--me);
  transition: width 200ms ease;
}

/* ---------- расшифровка ---------- */

.script {
  margin-top: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.script-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--hairline);
}

.script-title {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
  text-wrap: balance;
}

.script-tools { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

.turns {
  display: flex;
  flex-direction: column;
  gap: 1.05rem;
}

.turn {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.2rem 1.1rem;
  align-items: baseline;
  cursor: pointer;
  padding-left: 0.7rem;
  border-left: 2px solid transparent;
}

.turn:hover { border-left-color: var(--hairline); }
.turn.is-playing { border-left-color: var(--me); }

.turn-time {
  font-family: var(--data);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
}

.turn-who {
  grid-column: 2;
  font-family: var(--display);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.turn[data-who="me"] .turn-who { color: var(--me); }
.turn[data-who="them"] .turn-who { color: var(--them); }
.turn[data-who="one"] .turn-who { color: var(--ink-faint); }

.turn-text {
  grid-column: 2;
  margin: 0;
  max-width: 62ch;
  font-size: 1.02rem;
}

.summary {
  background: var(--sunk);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.summary h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.summary-body { font-size: 0.98rem; }

.summary-body h4 {
  margin: 1.1rem 0 0.4rem;
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.summary-body > h4:first-child { margin-top: 0; }

.summary-body p { margin: 0 0 0.6rem; }
.summary-body ul { margin: 0 0 0.6rem; padding-left: 1.15rem; }
.summary-body li { margin-bottom: 0.2rem; }
.summary-body > :last-child { margin-bottom: 0; }

/* ---------- уточняющая форма ---------- */

.ask {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem 1.5rem;
  padding: 1.15rem 1.25rem;
  background: var(--sunk);
}

.ask .field { flex: 1 1 15rem; }

.ask-row { display: flex; align-items: center; }

/* ---------- приём файла ---------- */

.drop {
  margin-top: 2.5rem;
  padding: clamp(2rem, 7vw, 3.75rem) 1.5rem;
  background: var(--sunk);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  text-align: center;
}

.drop.is-over { background: color-mix(in srgb, var(--sunk) 78%, var(--me)); }

.drop-lead {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.2rem, 3.5vw, 1.7rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.drop-sub {
  margin: 0 0 0.75rem;
  max-width: 44ch;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- архив ---------- */

.shelf {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
}

.shelf-empty {
  padding: 3rem 0;
  color: var(--ink-faint);
  font-size: 0.95rem;
}

.tape {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.35rem 1.25rem;
  padding: 1rem 0.25rem;
  border-top: 1px solid var(--hairline);
}

.tape:first-child { border-top: 0; }

.tape-name {
  grid-column: 1;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  min-width: 0;
  overflow-wrap: anywhere;
}

.tape-meta {
  grid-column: 1;
  grid-row: 2;
  font-family: var(--data);
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
}

.tape-acts {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
  justify-content: flex-end;
}

/* ---------- настройка ---------- */

.setup {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.9rem;
  max-width: 40rem;
}

.field { display: flex; flex-direction: column; gap: 0.45rem; }

.field-name {
  font-family: var(--display);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.field select,
.field input {
  font-family: var(--body);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 0.5rem 0.6rem;
  width: 100%;
}

.field select:focus-visible,
.field input:focus-visible { outline: 2px solid var(--me); outline-offset: 1px; }

.field-hint {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
  max-width: 52ch;
}

.caps {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-family: var(--data);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.caps span::before { content: "— "; color: var(--ink-faint); }

/* ---------- подвал ---------- */

.foot {
  margin-top: auto;
  border-top: 1px solid var(--hairline);
  overflow: hidden;
}

.foot-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.75rem var(--gutter) 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 2.5rem;
}

.foot-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-faint);
  max-width: 40ch;
}

.foot-word {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(4rem, 21vw, 15rem);
  line-height: 0.72;
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--ink) 9%, transparent);
  padding: 0 var(--gutter);
  max-width: var(--measure);
  margin: 0 auto;
  user-select: none;
}

/* ---------- узкий экран ---------- */

@media (max-width: 44rem) {
  .deck-inner { flex-wrap: wrap; gap: 0.6rem 1.25rem; }
  .deck-status { order: 3; width: 100%; }
  .transport { flex-direction: column; margin-top: -1.75rem; }
  .transport-body { padding-top: 0; }
  .turn { grid-template-columns: 1fr; }
  .turn-time { grid-column: 1; }
  .turn-who, .turn-text { grid-column: 1; }
  .tape { grid-template-columns: 1fr; }
  .tape-acts { grid-column: 1; grid-row: auto; justify-content: flex-start; }
}