/* ============================================================ */
/*  CYBERPUNK / NEON THEME                                       */
/* ============================================================ */
:root {
  --bg:         #07070C;
  --bg-2:       #0B0B14;
  --surface:    #0E1020;
  --surface-2:  #14172A;
  --ink:        #E8ECF7;
  --ink-soft:   #8892A8;
  --muted:      #4A5066;
  --line:       #1F2440;
  --line-soft:  #14182A;

  --magenta:    #FF2E9A;
  --cyan:       #00E5FF;
  --green:      #00FFA3;
  --amber:      #FFD12F;

  --glow-mag:   0 0 12px rgba(255, 46, 154, 0.55), 0 0 28px rgba(255, 46, 154, 0.25);
  --glow-cyan:  0 0 12px rgba(0, 229, 255, 0.55), 0 0 28px rgba(0, 229, 255, 0.20);
  --glow-green: 0 0 12px rgba(0, 255, 163, 0.55), 0 0 28px rgba(0, 255, 163, 0.20);

  --radius:     4px;
  --radius-sm:  3px;

  --font-mono:  "JetBrains Mono", "Space Mono", ui-monospace,
                "SF Mono", Menlo, Consolas, monospace;
  --font-body:  "Space Grotesk", "Inter",
                "Hiragino Kaku Gothic ProN", "Hiragino Sans",
                "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 背景にスキャンライン + 微グラデ + ノイズの薄レイヤ */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(255, 46, 154, 0.10), transparent 60%),
    radial-gradient(900px 700px at 0% 100%, rgba(0, 229, 255, 0.10), transparent 60%),
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,0.012) 0px,
      rgba(255,255,255,0.012) 1px,
      transparent 1px,
      transparent 3px
    );
  z-index: -1;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
}

::selection { background: var(--magenta); color: #fff; }

/* ============================================================ */
/*  THEMES (issue #6)                                            */
/* ============================================================ */
/* ペーパー(明) — 紙の質感。明るい教室向け。グロー/スキャンライン無し */
:root[data-theme="paper"] {
  --bg:         #F5EFE3;
  --bg-2:       #FAF6EC;
  --surface:    #FFFFFF;
  --surface-2:  #F5EFE3;
  --ink:        #1B1F2A;
  --ink-soft:   #4A5266;
  --muted:      #8C92A4;
  --line:       #D8D2C2;
  --line-soft:  #EBE5D6;

  --magenta:    #B8255F;
  --cyan:       #0E6B83;
  --green:      #15803D;
  --amber:      #B45309;

  --glow-mag:   none;
  --glow-cyan:  none;
  --glow-green: none;
}
:root[data-theme="paper"] body::before { display: none; }
:root[data-theme="paper"] body { background: var(--bg); }
:root[data-theme="paper"] .tabs { background: rgba(245,239,227,0.92); }
:root[data-theme="paper"] .panel {
  background: var(--surface);
  border-color: var(--line);
}
:root[data-theme="paper"] .t1-stage,
:root[data-theme="paper"] .t2-result,
:root[data-theme="paper"] .t2-compare-col,
:root[data-theme="paper"] .t3-map-wrap,
:root[data-theme="paper"] .t3-context,
:root[data-theme="paper"] .t4-stage,
:root[data-theme="paper"] .t4-col,
:root[data-theme="paper"] .t4-note {
  background: var(--surface-2);
}
:root[data-theme="paper"] .tok-chip { background: var(--surface); }
:root[data-theme="paper"] .cand-row {
  background: var(--surface-2);
}
:root[data-theme="paper"] .cand-row:hover {
  background: rgba(14, 107, 131, 0.08);
}
:root[data-theme="paper"] .cand-row.chosen {
  background: rgba(21, 128, 61, 0.10);
}
:root[data-theme="paper"] .btn { background: var(--surface); }
:root[data-theme="paper"] .btn:hover { background: var(--surface-2); }
:root[data-theme="paper"] .btn.primary {
  background: var(--magenta);
  color: #FFFFFF;
  border-color: var(--magenta);
}
:root[data-theme="paper"] .t1-sentence .word.just-added,
:root[data-theme="paper"] .cand-row.chosen .cand-token {
  text-shadow: none;
}
:root[data-theme="paper"] .site-title::before { text-shadow: none; }
:root[data-theme="paper"] .temp-value,
:root[data-theme="paper"] .t2-count strong,
:root[data-theme="paper"] .t2-compare-count strong { text-shadow: none; }

/* 高コントラスト(プロジェクター) — 純黒+明黄+明シアン。視認性最優先 */
:root[data-theme="projector"] {
  --bg:         #000000;
  --bg-2:       #050505;
  --surface:    #0A0A0A;
  --surface-2:  #141414;
  --ink:        #FFFFFF;
  --ink-soft:   #D4D4D4;
  --muted:      #909090;
  --line:       #4A4A4A;
  --line-soft:  #2A2A2A;

  --magenta:    #FF3DA5;
  --cyan:       #00FFFF;
  --green:      #00FF66;
  --amber:      #FFEE00;

  --glow-mag:   0 0 6px rgba(255, 61, 165, 0.7);
  --glow-cyan:  0 0 6px rgba(0, 255, 255, 0.7);
  --glow-green: 0 0 6px rgba(0, 255, 102, 0.7);
}
:root[data-theme="projector"] body::before {
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,0.02) 0px,
      rgba(255,255,255,0.02) 1px,
      transparent 1px,
      transparent 4px
    );
}
:root[data-theme="projector"] .panel { border-width: 2px; }
:root[data-theme="projector"] .tab[aria-selected="true"] { border-bottom-width: 3px; }
:root[data-theme="projector"] .cand-bar > span {
  background: var(--amber);
}
:root[data-theme="projector"] .cand-row.chosen .cand-bar > span {
  background: var(--green);
}
:root[data-theme="projector"] .cand-row.flashed .cand-bar > span {
  background: var(--cyan);
}

/* ============================================================ */
/*  HEADER                                                       */
/* ============================================================ */
.site-header {
  padding: 22px 0 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  position: relative;
}
.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.header-text { flex: 1; min-width: 0; }
.theme-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.theme-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 4px;
  white-space: nowrap;
}
.theme-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink-soft);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 6px 10px;
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.theme-btn:hover {
  color: var(--ink);
  border-color: var(--cyan);
}
.theme-btn[aria-pressed="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
  box-shadow: var(--glow-cyan);
}
:root[data-theme="paper"] .theme-btn[aria-pressed="true"] {
  color: var(--magenta);
  border-color: var(--magenta);
  background: rgba(184, 37, 95, 0.08);
}
.site-header::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--magenta), var(--cyan), transparent);
  opacity: 0.6;
}

.site-title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.site-title::before {
  content: "▌ ";
  color: var(--magenta);
  text-shadow: var(--glow-mag);
}
.site-sub {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.site-footer {
  margin-top: 40px;
  padding: 20px 0 32px;
  color: var(--muted);
  text-align: center;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ============================================================ */
/*  TAB NAV                                                      */
/* ============================================================ */
.tabs {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 7, 12, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.tabs-inner {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-inner::-webkit-scrollbar { display: none; }

.tab {
  flex: 0 0 auto;
  padding: 12px 14px;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease, text-shadow 0.15s ease;
  white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

/* ============================================================ */
/*  PANEL                                                        */
/* ============================================================ */
.panel {
  margin: 26px 0 12px;
  padding: 22px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.panel::before {
  content: "";
  position: absolute;
  top: -1px; left: 12px;
  width: 28px; height: 2px;
  background: var(--magenta);
  box-shadow: var(--glow-mag);
}
.panel::after {
  content: "";
  position: absolute;
  bottom: -1px; right: 12px;
  width: 28px; height: 2px;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.panel-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.panel-title::before {
  content: "// ";
  color: var(--cyan);
  font-family: var(--font-mono);
  font-weight: 400;
}
.panel-desc {
  margin: 0 0 22px;
  color: var(--ink-soft);
  font-size: 14px;
}
.panel-desc strong {
  color: var(--magenta);
  font-weight: 700;
  text-shadow: 0 0 6px rgba(255, 46, 154, 0.4);
}
.panel-desc .note {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.disclaimer {
  margin: 14px 4px;
  padding: 10px 14px;
  font-size: 11.5px;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  border-left: 2px solid var(--line);
  background: rgba(255, 209, 47, 0.02);
}

/* ============================================================ */
/*  FIELDS                                                       */
/* ============================================================ */
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.field-label::before { content: "> "; color: var(--magenta); }

select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 36px 10px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%2300E5FF' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
select:focus, select:hover {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.2);
}

input[type=range] {
  width: 100%;
  accent-color: var(--magenta);
}

.temp-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--magenta);
  font-weight: 700;
  font-size: 13px;
  text-shadow: var(--glow-mag);
}
.temp-legend {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================ */
/*  TAB 1                                                        */
/* ============================================================ */
.t1-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.t1-stage {
  margin: 14px 0 18px;
  padding: 18px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.t1-stage::before {
  content: "PROMPT";
  position: absolute;
  top: -7px; left: 12px;
  padding: 0 6px;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.t1-sentence {
  font-size: 18px;
  line-height: 1.9;
  min-height: 1.9em;
  word-break: break-word;
  color: var(--ink);
}
.t1-sentence .word { display: inline-block; padding: 0 1px; }
.t1-sentence .word.just-added {
  animation: pop 0.45s ease;
  color: var(--green);
  font-weight: 700;
  text-shadow: var(--glow-green);
}
.t1-cursor {
  display: inline-block;
  width: 8px;
  height: 1.0em;
  vertical-align: -0.15em;
  background: var(--magenta);
  margin-left: 3px;
  box-shadow: var(--glow-mag);
  animation: blink 1.05s steps(2, end) infinite;
}
.t1-cursor.hidden { display: none; }
@keyframes pop {
  0%   { transform: translateY(-6px); opacity: 0; filter: blur(4px); }
  60%  { transform: translateY(0);    opacity: 1; filter: blur(0); }
  100% { transform: none; }
}
@keyframes blink { 50% { opacity: 0; } }

/* 候補テーブル */
.t1-candidates {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.cand-row {
  display: grid;
  grid-template-columns: 110px 1fr 60px;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.012);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.05s ease;
}
.cand-row:hover {
  background: rgba(0, 229, 255, 0.05);
  border-color: rgba(0, 229, 255, 0.35);
}
.cand-row:active { transform: translateY(1px); }
.cand-row.chosen {
  border-color: var(--green);
  background: rgba(0, 255, 163, 0.06);
}
.cand-row.flashed {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
}
.cand-token {
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.cand-token .marker {
  color: var(--green);
  font-size: 12px;
  text-shadow: var(--glow-green);
}
.cand-bar {
  position: relative;
  height: 10px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 1px;
  overflow: hidden;
}
.cand-bar > span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, var(--magenta), var(--cyan));
  border-radius: 1px;
  transition: width 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
  box-shadow: 0 0 8px rgba(255, 46, 154, 0.3);
}
.cand-row.chosen .cand-bar > span {
  background: linear-gradient(90deg, var(--green), #4DFFB8);
  box-shadow: 0 0 10px rgba(0, 255, 163, 0.4);
}
.cand-row.flashed .cand-bar > span {
  background: linear-gradient(90deg, var(--cyan), #66F2FF);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}
.cand-pct {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--ink-soft);
}

/* ボタン */
.t1-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.05s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.15);
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn.primary {
  background: var(--magenta);
  color: #0B0B14;
  border-color: var(--magenta);
  box-shadow: var(--glow-mag);
}
.btn.primary:hover {
  background: #FF53AA;
  color: #0B0B14;
  border-color: #FF53AA;
}
.btn.ghost { background: transparent; }

.t1-final {
  margin-top: 18px;
  padding: 14px 16px;
  background: rgba(0, 255, 163, 0.04);
  border: 1px solid rgba(0, 255, 163, 0.25);
  border-left: 3px solid var(--green);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink);
}
.t1-final.diverged {
  background: rgba(0, 229, 255, 0.04);
  border-color: rgba(0, 229, 255, 0.3);
  border-left-color: var(--cyan);
}
.t1-final strong { color: var(--green); }
.t1-final.diverged strong { color: var(--cyan); }

/* ============================================================ */
/*  TAB 2                                                        */
/* ============================================================ */
.t2-controls { margin-bottom: 18px; }

.t2-result {
  padding: 18px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 24px;
}
.t2-raw { margin-bottom: 14px; }
.t2-raw-label {
  display: inline-block;
  padding: 2px 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-right: 8px;
  text-transform: uppercase;
}
.t2-raw-text {
  display: inline;
  font-size: 16px;
  color: var(--ink);
}

.t2-tokens {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0;
}
.tok-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 10px 4px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--line);
  min-width: 38px;
  animation: tokPop 0.4s ease both;
}
@keyframes tokPop {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}
.tok-chip .tok-text {
  font-weight: 700;
  font-size: 15px;
  white-space: pre;
  color: var(--ink);
}
.tok-chip .tok-id {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  margin-top: 1px;
  font-variant-numeric: tabular-nums;
}
/* チップ色: 8色のネオン・パステル */
.tok-chip[data-i="0"] { border-color: rgba(255,46,154,0.5);  box-shadow: 0 0 8px rgba(255,46,154,0.15); }
.tok-chip[data-i="1"] { border-color: rgba(0,229,255,0.5);   box-shadow: 0 0 8px rgba(0,229,255,0.15); }
.tok-chip[data-i="2"] { border-color: rgba(0,255,163,0.5);   box-shadow: 0 0 8px rgba(0,255,163,0.15); }
.tok-chip[data-i="3"] { border-color: rgba(255,209,47,0.5);  box-shadow: 0 0 8px rgba(255,209,47,0.15); }
.tok-chip[data-i="4"] { border-color: rgba(184,99,255,0.5);  box-shadow: 0 0 8px rgba(184,99,255,0.15); }
.tok-chip[data-i="5"] { border-color: rgba(255,128,89,0.5);  box-shadow: 0 0 8px rgba(255,128,89,0.15); }
.tok-chip[data-i="6"] { border-color: rgba(89,255,209,0.5);  box-shadow: 0 0 8px rgba(89,255,209,0.15); }
.tok-chip[data-i="7"] { border-color: rgba(255,89,153,0.5);  box-shadow: 0 0 8px rgba(255,89,153,0.15); }

.t2-count {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}
.t2-count strong {
  color: var(--magenta);
  font-family: var(--font-mono);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  margin: 0 2px;
  text-shadow: var(--glow-mag);
}

.t2-compare-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  font-weight: 700;
  text-transform: uppercase;
}
.t2-compare-title::before { content: "// "; color: var(--magenta); }
.t2-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.t2-compare-col {
  padding: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.t2-compare-meta {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.t2-compare-meta .lang {
  display: inline-block;
  padding: 1px 6px;
  margin-right: 6px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-transform: uppercase;
}
.t2-compare-tokens {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
.t2-compare-tokens .tok-chip { padding: 4px 7px 3px; min-width: 0; }
.t2-compare-tokens .tok-chip .tok-text { font-size: 13px; }
.t2-compare-tokens .tok-chip .tok-id { display: none; }
.t2-compare-count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.t2-compare-count strong {
  color: var(--cyan);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  text-shadow: var(--glow-cyan);
}

/* ============================================================ */
/*  TAB 3                                                        */
/* ============================================================ */
.t3-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 12px;
}
.t3-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.t3-legend-dot {
  width: 10px; height: 10px; border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}

.t3-map-wrap {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  aspect-ratio: 1 / 1;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}
.t3-map { width: 100%; height: 100%; display: block; }

.t3-map .grid line { stroke: rgba(0, 229, 255, 0.06); stroke-width: 0.12; }
.t3-map .grid .axis { stroke: rgba(0, 229, 255, 0.18); stroke-width: 0.2; }

.t3-map .link {
  stroke: var(--cyan);
  stroke-width: 0.35;
  opacity: 0;
  transition: opacity 0.25s ease;
  filter: drop-shadow(0 0 1px var(--cyan));
}
.t3-map .link.active { opacity: 0.8; }

.t3-map .word-dot {
  cursor: pointer;
  transition: cx 0.7s cubic-bezier(0.4, 0.0, 0.2, 1),
              cy 0.7s cubic-bezier(0.4, 0.0, 0.2, 1),
              r 0.2s ease, opacity 0.25s ease;
}
.t3-map .word-label {
  font-family: var(--font-mono);
  font-size: 2.6px;
  fill: var(--ink);
  pointer-events: none;
  user-select: none;
  transition: x 0.7s cubic-bezier(0.4, 0.0, 0.2, 1),
              y 0.7s cubic-bezier(0.4, 0.0, 0.2, 1),
              opacity 0.25s ease, font-weight 0.2s ease;
}
.t3-map .word-group.dim .word-dot,
.t3-map .word-group.dim .word-label { opacity: 0.2; }
.t3-map .word-group.active .word-dot {
  r: 2.4;
  filter: drop-shadow(0 0 1.5px currentColor);
}
.t3-map .word-group.neighbor .word-dot {
  stroke: var(--cyan);
  stroke-width: 0.4;
  filter: drop-shadow(0 0 1px var(--cyan));
}
.t3-map .word-group.neighbor .word-label,
.t3-map .word-group.active .word-label { font-weight: 700; }

.t3-map .word-group.context .word-dot {
  r: 2.5;
  stroke: var(--magenta);
  stroke-width: 0.5;
  filter: drop-shadow(0 0 2px var(--magenta));
}
.t3-map .word-group.context .word-label {
  fill: var(--magenta);
  font-weight: 700;
}

.t3-hint {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
  text-align: center;
}
.t3-hint strong { color: var(--cyan); }

.t3-context {
  margin-top: 18px;
  padding: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.t3-context-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.t3-context-title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-weight: 700;
  text-transform: uppercase;
}
.t3-context-title::before { content: "▸ "; color: var(--magenta); }
.t3-context-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.t3-context-actions select {
  padding: 7px 30px 7px 10px;
  font-size: 13px;
}
.t3-context-actions .btn { padding: 7px 12px; font-size: 11.5px; }

.t3-context-bag {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 30px;
}
.t3-context-bag:empty::before {
  content: "(まだ文脈なし ― 単語を足すと地図が変形します)";
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
}
.t3-ctx-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 10px;
  background: rgba(255, 46, 154, 0.12);
  border: 1px solid rgba(255, 46, 154, 0.45);
  border-radius: 2px;
  font-size: 13px;
  color: var(--ink);
}
.t3-ctx-chip button {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--magenta);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  padding: 2px 4px;
  cursor: pointer;
}
.t3-ctx-chip button:hover { color: #FF66B8; }

/* ============================================================ */
/*  TAB 4 (BERT)                                                 */
/* ============================================================ */
.t4-controls { margin-bottom: 18px; }

.t4-stage {
  margin: 14px 0 18px;
  padding: 18px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.t4-stage::before {
  content: "MASKED";
  position: absolute;
  top: -7px; left: 12px;
  padding: 0 6px;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}
.t4-sentence {
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
  text-align: center;
  word-break: break-word;
}
.t4-mask {
  display: inline-block;
  min-width: 50px;
  margin: 0 4px;
  padding: 1px 8px;
  background: rgba(255, 46, 154, 0.12);
  border: 1px dashed var(--magenta);
  border-radius: 2px;
  color: var(--magenta);
  text-shadow: var(--glow-mag);
  font-family: var(--font-mono);
  font-weight: 700;
}
.t4-side-faint { opacity: 0.5; }
.t4-side-faint.show { opacity: 1; transition: opacity 0.5s ease; }

.t4-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
.t4-col {
  padding: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.t4-col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.t4-col-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 1px;
}
.t4-col.left .t4-col-tag {
  color: var(--amber);
  background: rgba(255, 209, 47, 0.08);
  border: 1px solid rgba(255, 209, 47, 0.4);
}
.t4-col.both .t4-col-tag {
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.5);
}
.t4-col-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}
.t4-rows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.t4-row {
  display: grid;
  grid-template-columns: 100px 1fr 52px;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.012);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
}
.t4-row.top {
  border-color: rgba(0, 229, 255, 0.5);
  background: rgba(0, 229, 255, 0.05);
}
.t4-col.left .t4-row.top {
  border-color: rgba(255, 209, 47, 0.5);
  background: rgba(255, 209, 47, 0.04);
}
.t4-row .tok {
  font-weight: 700;
  font-size: 14px;
}
.t4-row .bar {
  position: relative;
  height: 8px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 1px;
  overflow: hidden;
}
.t4-row .bar > span {
  position: absolute; inset: 0 auto 0 0;
  width: 0%;
  border-radius: 1px;
  transition: width 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.t4-col.left .t4-row .bar > span {
  background: linear-gradient(90deg, #FFA800, var(--amber));
  box-shadow: 0 0 6px rgba(255, 209, 47, 0.3);
}
.t4-col.both .t4-row .bar > span {
  background: linear-gradient(90deg, var(--cyan), #66F2FF);
  box-shadow: 0 0 6px rgba(0, 229, 255, 0.4);
}
.t4-row .pct {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--ink-soft);
}
.t4-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  padding: 10px 12px;
  background: var(--bg-2);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius-sm);
}
.t4-note strong {
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

/* ============================================================ */
/*  RESPONSIVE                                                   */
/* ============================================================ */
@media (max-width: 720px) {
  .site-title { font-size: 18px; }
  .panel { padding: 16px 14px; }
  .panel-title { font-size: 16px; }

  .header-row { flex-direction: column; gap: 10px; }
  .theme-switch { align-self: flex-start; }
  .theme-btn { padding: 5px 9px; font-size: 10.5px; }

  .t1-controls { grid-template-columns: 1fr; gap: 14px; }
  .cand-row {
    grid-template-columns: 72px 1fr 50px;
    gap: 8px;
    padding: 7px 8px;
  }
  .cand-token { font-size: 13.5px; }
  .t1-sentence { font-size: 16px; }

  .t2-compare-grid { grid-template-columns: 1fr; }

  .t4-grid { grid-template-columns: 1fr; }
  .t4-row {
    grid-template-columns: 80px 1fr 48px;
    gap: 8px;
  }

  .btn { padding: 8px 11px; font-size: 11.5px; }
}