:root {
  color-scheme: light;
  --bg-a: #fef8ef;
  --bg-b: #eaf6ff;
  --ink: #1f2a37;
  --ink-soft: #526175;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-border: rgba(26, 48, 78, 0.12);
  --shadow: 0 18px 50px rgba(21, 39, 63, 0.13);
  --accent: #0f8f8f;
  --danger: #ad1f2c;
  --mono: "JetBrains Mono", "Menlo", "Consolas", monospace;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--ink);
  background: radial-gradient(circle at 12% 15%, #ffe9c2 0%, transparent 40%),
    radial-gradient(circle at 88% 22%, #c8f0ec 0%, transparent 42%),
    linear-gradient(140deg, var(--bg-a), var(--bg-b));
  position: relative;
  overflow-x: hidden;
}

.aurora {
  position: fixed;
  width: 40vw;
  height: 40vw;
  border-radius: 999px;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
  animation: drift 10s ease-in-out infinite alternate;
}

.aurora-a {
  top: -10vw;
  right: -4vw;
  background: rgba(255, 178, 89, 0.45);
}

.aurora-b {
  left: -8vw;
  bottom: -16vw;
  background: rgba(54, 174, 195, 0.38);
  animation-delay: -4s;
}

.app-shell {
  width: min(1200px, 94vw);
  margin: 26px auto 30px;
  position: relative;
  z-index: 1;
}

.hero {
  margin-bottom: 18px;
}

.hero-tag {
  margin: 0;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: #915813;
  text-transform: uppercase;
}

.hero h1 {
  margin: 6px 0 8px;
  font-size: clamp(1.8rem, 3.8vw, 2.8rem);
  line-height: 1.1;
}

.hero-sub {
  margin: 0;
  max-width: 76ch;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.58;
}

.hero-sub code {
  font-family: var(--mono);
  background: rgba(15, 143, 143, 0.1);
  padding: 0.1rem 0.4rem;
  border-radius: 8px;
}

.status-pill {
  display: inline-flex;
  margin-top: 12px;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.status-pill.loading {
  color: #885508;
  background: #fff3db;
  border-color: #f7d59f;
}

.status-pill.ready {
  color: #0c664b;
  background: #ddf7ec;
  border-color: #9fe8c7;
}

.status-pill.error {
  color: #85252c;
  background: #ffe7ea;
  border-color: #f3aeb7;
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: 20px;
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.input-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.input-toolbar h2 {
  margin: 0;
}

.clear-btn {
  border: 1px solid #c5d4e7;
  background: #f6f9fd;
  color: #2b4667;
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.clear-btn:hover {
  transform: translateY(-1px);
  border-color: #7ea6cf;
  box-shadow: 0 8px 16px rgba(58, 88, 124, 0.14);
}

.clear-btn:active {
  transform: translateY(0);
}

.clear-btn:focus-visible {
  outline: 3px solid rgba(63, 139, 196, 0.25);
  outline-offset: 2px;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #29364a;
}

#patternInput {
  width: 100%;
  resize: vertical;
  border: 1px solid #b8c6d8;
  border-radius: 14px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 1.02rem;
  line-height: 1.4;
  min-height: 72px;
  background: #fbfdff;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

#patternInput:focus {
  outline: none;
  border-color: #3f8bc4;
  box-shadow: 0 0 0 4px rgba(63, 139, 196, 0.16);
}

.regex-track-wrap {
  margin-top: 10px;
}

.regex-track-label {
  display: block;
  margin-bottom: 7px;
  font-size: 0.82rem;
  color: #4d647e;
}

.regex-track {
  min-height: 48px;
  border-radius: 12px;
  border: 1px dashed #b9cce2;
  background: #f8fbff;
  padding: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.regex-track.empty {
  align-items: center;
  color: #586e86;
  font-size: 0.9rem;
}

.regex-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 9px;
  border: 1px solid #ccdaeb;
  font-family: var(--mono);
  font-size: 0.86rem;
  background: #ffffff;
  color: #18314f;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.regex-chip.is-non-consuming {
  background: #f8f9fb;
  border-style: dashed;
  color: #556980;
}

.regex-chip.color-0 {
  background: #ffefad;
  border-color: #dfb81f;
}

.regex-chip.color-1 {
  background: #ffd6c2;
  border-color: #df8c67;
}

.regex-chip.color-2 {
  background: #ccf1d7;
  border-color: #5db57a;
}

.regex-chip.color-3 {
  background: #d4eaff;
  border-color: #66a8dc;
}

.regex-chip.color-4 {
  background: #f9d5ea;
  border-color: #d675b1;
}

.regex-chip.color-5 {
  background: #dcf3f3;
  border-color: #4aa5a5;
}

.regex-chip.color-6 {
  background: #ffe8cd;
  border-color: #d08a3f;
}

.regex-chip.color-7 {
  background: #e6e0ff;
  border-color: #937fe6;
}

.regex-error {
  margin: 12px 0 0;
  color: var(--danger);
  background: #ffe7ea;
  border: 1px solid #f3bbc2;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 0.9rem;
}

.button-groups {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.btn-group h3 {
  margin: 0 0 8px;
  font-size: 0.94rem;
  color: #3d4d61;
}

.btn-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.token-btn,
.example-btn {
  border: 1px solid #bccde0;
  background: #ffffff;
  border-radius: 12px;
  padding: 8px 6px;
  font-family: var(--mono);
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.token-btn:hover,
.example-btn:hover {
  transform: translateY(-1px);
  border-color: #6a9ecb;
  box-shadow: 0 8px 18px rgba(39, 74, 113, 0.16);
}

.token-btn.is-clicked {
  animation: buttonPulse 0.38s ease;
}

.quick-examples {
  margin-top: 14px;
}

.quick-examples h3 {
  margin: 0 0 8px;
  font-size: 0.94rem;
  color: #3d4d61;
}

.example-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hint-card {
  margin-top: 12px;
  border-radius: 14px;
  padding: 11px 12px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #204460;
  background: linear-gradient(120deg, rgba(169, 224, 255, 0.26), rgba(233, 250, 255, 0.82));
  border: 1px solid rgba(103, 177, 221, 0.45);
  height: 78px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.hint-card strong {
  font-family: var(--mono);
}

.manual-load {
  margin-top: 12px;
  display: grid;
  gap: 5px;
  font-size: 0.88rem;
  color: #41566d;
}

#dictFile {
  font-size: 0.85rem;
}

.token-legend {
  min-height: 108px;
  border-radius: 14px;
  border: 1px dashed #b8cbde;
  background: rgba(250, 252, 255, 0.7);
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.token-legend.empty {
  display: flex;
  align-items: center;
  color: #5b6f86;
}

.token-card {
  border-radius: 12px;
  padding: 10px;
  border: 1px solid #d7e4f2;
  background: #f5f9ff;
  opacity: 0.92;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

.token-card.is-active {
  opacity: 1;
  transform: translateY(-2px);
  animation: cardFlash 0.45s ease;
}

.token-card.is-non-consuming {
  background: #f8f9fb;
  border-style: dashed;
}

.token-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}

.token-head code {
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 2px 6px;
  border-radius: 8px;
  color: #12253f;
  background: rgba(255, 255, 255, 0.7);
}

.token-head span {
  font-size: 0.74rem;
  color: #5b6d80;
}

.token-card p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.42;
  color: #314156;
}

.token-card.color-0 {
  background: #fff2b8;
  border-color: #efcd63;
}

.token-card.color-1 {
  background: #ffd9c5;
  border-color: #f2a98d;
}

.token-card.color-2 {
  background: #c9f2d5;
  border-color: #8ad6a1;
}

.token-card.color-3 {
  background: #d5ecff;
  border-color: #93c5ec;
}

.token-card.color-4 {
  background: #f9d8ef;
  border-color: #e8a7d2;
}

.token-card.color-5 {
  background: #ddf4f4;
  border-color: #94d6d6;
}

.token-card.color-6 {
  background: #ffe8d2;
  border-color: #f0bf86;
}

.token-card.color-7 {
  background: #e7e3ff;
  border-color: #beb3f7;
}

.stats-row {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  border-radius: 12px;
  border: 1px solid #cfdbeb;
  background: #f8fbff;
  padding: 10px;
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  color: #61748b;
}

.stat-card strong {
  display: block;
  margin-top: 4px;
  font-size: 1.26rem;
}

.result-heading {
  padding-top: 18px;
}

.result-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-height: 64vh;
  overflow: auto;
  padding-right: 3px;
}

.result-item {
  border-radius: 12px;
  border: 1px solid #d2deed;
  background: #ffffff;
  padding: 8px 10px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  animation: riseIn 0.28s ease both;
}

.result-item .index {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #4f647b;
  width: 36px;
}

.result-item .word {
  font-family: var(--mono);
  font-size: 0.97rem;
  letter-spacing: 0.01em;
}

.match-chip {
  border-radius: 9px;
  padding: 0 4px;
  border: 1px solid transparent;
  margin: 0 1px;
  display: inline-block;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.regex-chip.is-linked,
.token-card.is-linked,
.match-chip.is-linked {
  transform: translateY(-1px);
  box-shadow: 0 0 0 3px rgba(34, 103, 168, 0.2);
  outline: 2px solid rgba(32, 82, 128, 0.56);
  outline-offset: 1px;
}

.match-chip.is-active {
  animation: chipFlash 0.5s ease;
}

.match-chip.color-0 {
  background: #ffefad;
  border-color: #dfb81f;
}

.match-chip.color-1 {
  background: #ffd6c2;
  border-color: #df8c67;
}

.match-chip.color-2 {
  background: #ccf1d7;
  border-color: #5db57a;
}

.match-chip.color-3 {
  background: #d4eaff;
  border-color: #66a8dc;
}

.match-chip.color-4 {
  background: #f9d5ea;
  border-color: #d675b1;
}

.match-chip.color-5 {
  background: #dcf3f3;
  border-color: #4aa5a5;
}

.match-chip.color-6 {
  background: #ffe8cd;
  border-color: #d08a3f;
}

.match-chip.color-7 {
  background: #e6e0ff;
  border-color: #937fe6;
}

.empty-result {
  border-radius: 12px;
  border: 1px dashed #bfd0e5;
  background: rgba(248, 251, 255, 0.9);
  padding: 14px;
  color: #576b81;
  line-height: 1.55;
}

@media (max-width: 800px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .result-list {
    max-height: none;
  }
}

@media (max-width: 560px) {
  .panel {
    padding: 15px;
    border-radius: 18px;
  }

  .input-toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .clear-btn {
    align-self: flex-end;
  }

  .btn-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .result-item .index {
    width: auto;
  }
}

@keyframes buttonPulse {
  0% {
    transform: translateY(-1px) scale(1);
  }

  50% {
    transform: translateY(-1px) scale(1.07);
    box-shadow: 0 0 0 8px rgba(59, 130, 246, 0.14);
  }

  100% {
    transform: translateY(-1px) scale(1);
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  }
}

@keyframes chipFlash {
  0% {
    transform: scale(1);
  }

  45% {
    transform: scale(1.08);
    box-shadow: 0 0 0 5px rgba(75, 141, 193, 0.16);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(75, 141, 193, 0);
  }
}

@keyframes cardFlash {
  0% {
    box-shadow: 0 0 0 0 rgba(85, 143, 196, 0.2);
  }

  50% {
    box-shadow: 0 0 0 8px rgba(85, 143, 196, 0.16);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(85, 143, 196, 0);
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(24px, -16px, 0);
  }
}