@font-face {
  font-family: "Noto Sans SC";
  src: url("/fonts/NotoSansSC-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Sans SC";
  src: url("/fonts/NotoSansSC-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Serif SC";
  src: url("/fonts/NotoSerifSC-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --panel: #ffffff;
  --panel-strong: #ffffff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0071e3;
  --accent-soft: rgba(0, 113, 227, 0.12);
  --accent-2: #34c759;
  --line: rgba(0, 0, 0, 0.08);
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  --chip-bg: #ebebee;
  --chip-active-bg: #ffffff;
  --chip-active-text: #1d1d1f;
  --chip-border: rgba(0, 0, 0, 0.08);
  --card-self-bg: #f9fafc;
  --card-opponent-bg: #fbfbfc;
  --card-opponent-border: #c7c7cc;
  --card-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
  --ghost-bg: #ffffff;
  --danger: #ff3b30;
  --danger-bg: rgba(255, 59, 48, 0.14);
  --danger-border: rgba(255, 59, 48, 0.28);
  --line-strong: rgba(0, 0, 0, 0.22);
  --restart-border: rgba(0, 0, 0, 0.68);
  --control-border: rgba(0, 0, 0, 0.18);
  --control-panel-border: rgba(0, 0, 0, 0.16);
}

:root[data-theme="dark"] {
  --bg: #0f0f12;
  --panel: #1c1c1e;
  --panel-strong: #2c2c2e;
  --ink: #f5f5f7;
  --muted: #a1a1a6;
  --accent: #0a84ff;
  --accent-soft: rgba(10, 132, 255, 0.18);
  --accent-2: #30d158;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
  --chip-bg: #2a2a2f;
  --chip-active-bg: #3a3a40;
  --chip-active-text: #f5f5f7;
  --chip-border: rgba(255, 255, 255, 0.12);
  --card-self-bg: #232326;
  --card-opponent-bg: #1f1f23;
  --card-opponent-border: #3a3a40;
  --card-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
  --ghost-bg: #1b1b1f;
  --danger: #ff453a;
  --danger-bg: rgba(255, 69, 58, 0.2);
  --danger-border: rgba(255, 69, 58, 0.35);
  --line-strong: rgba(255, 255, 255, 0.28);
  --restart-border: rgba(255, 255, 255, 0.55);
  --control-border: rgba(255, 255, 255, 0.22);
  --control-panel-border: rgba(255, 255, 255, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo",
    "Noto Sans JP", sans-serif;
  color: var(--ink);
  background: var(--bg);
  transition: background 0.3s ease, color 0.3s ease;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 120px;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 24px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-block {
  max-width: 620px;
}

.title-block h1 {
  font-size: clamp(2rem, 2.8vw, 2.8rem);
  margin: 6px 0 8px;
  letter-spacing: -0.01em;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--chip-bg);
  border-radius: 999px;
}

.tab {
  border: none;
  border: 1px solid transparent;
  padding: 8px 18px;
  border-radius: 999px;
  background: transparent;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab.active {
  background: var(--chip-active-bg);
  color: var(--ink);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--chip-border);
}

.theme-toggle {
  border: 1px solid var(--control-border);
  background: var(--panel);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.theme-toggle:hover {
  background: var(--panel-strong);
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  border-radius: 16px;
  background: var(--panel);
  border: 1px solid var(--control-panel-border);
  box-shadow: var(--shadow);
  margin-bottom: 30px;
}

.control-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--ink);
}

.control-panel-toggle {
  border: 1px solid var(--control-border);
  background: var(--chip-bg);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 10px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.control-panel-toggle:hover {
  background: var(--panel-strong);
}

.control-panel-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  transition: max-height 0.35s ease, opacity 0.25s ease, transform 0.35s ease;
  max-height: 1000px;
}

.control-panel[data-collapsed="true"] .control-panel-body {
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.control-group span {
  font-weight: 600;
  color: var(--ink);
}

.control-group select {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--control-border);
  background: var(--panel-strong);
  font-family: inherit;
  color: var(--ink);
}

.range-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.range-row input[type="range"]:disabled {
  opacity: 0.5;
}

.range-value {
  min-width: 44px;
  text-align: right;
  font-weight: 600;
  color: var(--muted);
}

.chip-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  background: var(--chip-bg);
  padding: 4px;
  border-radius: 14px;
}

.chip {
  border-radius: 10px;
  border: 1px solid var(--control-border);
  background: transparent;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
  color: var(--muted);
}

.chip-row .chip {
  min-width: 0;
  text-align: center;
}

.chip.active {
  background: var(--chip-active-bg);
  color: var(--chip-active-text);
  border-color: var(--control-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.overlay-controls {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 14px;
  width: min(560px, calc(100% - 32px));
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  z-index: 20;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.overlay-controls[data-collapsed="true"] {
  gap: 0;
}

.overlay-head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  justify-content: space-between;
}

.overlay-status {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 160px;
  flex: 1;
}

.overlay-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.overlay-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.overlay-toggle {
  border: none;
  background: var(--chip-bg);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
}

.overlay-toggle:hover {
  background: var(--panel-strong);
}

.overlay-body {
  transition: max-height 0.35s ease, opacity 0.25s ease, transform 0.35s ease;
  max-height: 120px;
  opacity: 1;
  transform: translateY(0);
}

.overlay-controls[data-collapsed="true"] .overlay-body {
  max-height: 0;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
}

.overlay-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  width: 100%;
  background: var(--chip-bg);
  border-radius: 14px;
  padding: 4px;
}

.overlay-button {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 10px;
  padding: 0 12px;
  height: 40px;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
  width: 100%;
  min-width: 0;
  transition: background 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  line-height: 0;
}

.overlay-button.primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.overlay-button.ghost {
  background: var(--panel-strong);
  color: var(--muted);
}

.overlay-button.restart {
  border-color: var(--restart-border);
}

.overlay-button.stop {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.icon {
  width: 18px;
  height: 18px;
  display: block;
}

.overlay-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chip.stop {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
}

.chip.small {
  padding: 6px 10px;
  font-size: 0.75rem;
}

.hint-button {
  width: 100%;
  border-radius: 999px;
  border: none;
  background: var(--chip-bg);
  padding: 10px 16px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hint-button:hover {
  background: var(--panel-strong);
}

.content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-footer {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  font-size: 0.8rem;
  color: var(--muted);
}

.app-footer span {
  overflow-wrap: anywhere;
}

.panel {
  background: var(--panel);
  padding: 22px;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.panel.error {
  border: 1px solid rgba(0, 113, 227, 0.25);
  color: var(--ink);
}

.list,
.roleplay {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.line-card {
  background: var(--panel-strong);
  border-radius: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 110px 1fr minmax(200px, 260px);
  gap: 16px;
  align-items: center;
  box-shadow: var(--card-shadow);
}

.app.animate .line-card {
  animation: rise 0.5s ease both;
  animation-delay: var(--delay, 0s);
}

.line-card.playing {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.line-card.self {
  border-left: 4px solid var(--accent);
  background: var(--card-self-bg);
}

.line-card.opponent {
  border-left: 4px solid var(--card-opponent-border);
  background: var(--card-opponent-bg);
}

.line-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  font-weight: 600;
  color: #fff;
}

.role-A {
  background: var(--accent);
}

.role-B {
  background: var(--accent-2);
}

.line-no {
  font-weight: 600;
  letter-spacing: 0.06em;
}

.tag {
  font-size: 0.75rem;
  color: var(--muted);
}

.line-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.line-zh {
  font-size: 1.2rem;
  font-weight: 600;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans", sans-serif;
}

.line-pinyin {
  font-size: 0.95rem;
  color: var(--muted);
}

.line-ja {
  font-size: 0.95rem;
  color: var(--ink);
}

.line-placeholder {
  font-size: 0.9rem;
  color: var(--muted);
}

.hint {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.line-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
}

.line-actions button {
  font-family: inherit;
}

.action-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.action-title {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.adjust-row {
  display: grid;
  grid-template-columns: 40px auto auto 1fr;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--muted);
}

.adjust-label {
  font-weight: 600;
  color: var(--muted);
}

.adjust-value {
  text-align: right;
  font-weight: 600;
  color: var(--ink);
}
.segment {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.segment-button {
  width: 100%;
}

.primary {
  border: none;
  border-radius: 12px;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.ghost {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 16px;
  background: var(--ghost-bg);
  cursor: pointer;
  font-weight: 600;
}

.stats {
  display: flex;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--muted);
}

.stats .hard {
  color: var(--accent);
  font-weight: 600;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .line-card {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }

  .line-actions {
    width: 100%;
    flex-direction: column;
  }

  .tab {
    padding: 8px 16px;
  }
}

@media (max-width: 640px) {
  .app {
    padding: 24px 16px 140px;
  }

  .app-header {
    align-items: flex-start;
  }

  .header-controls {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .nav {
    width: 100%;
  }

  .tab {
    flex: 1;
    text-align: center;
  }

  .theme-toggle {
    width: 100%;
    justify-content: center;
  }

  .line-zh {
    font-size: 1.1rem;
  }

  .overlay-controls {
    width: calc(100% - 24px);
    bottom: 12px;
    align-items: stretch;
  }

  .overlay-head {
    width: 100%;
    justify-content: space-between;
  }

  .overlay-status {
    min-width: 0;
  }

  .overlay-buttons {
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}