:root {
  --ink: #1b1712;
  --muted: #756b60;
  --paper: #f7efe0;
  --paper-2: #efe0c5;
  --card: rgba(255, 250, 238, 0.86);
  --line: rgba(59, 45, 31, 0.18);
  --head-0: 230, 105, 45;
  --head-1: 20, 132, 138;
  --accent: #1f5b50;
  --danger: #a6422b;
  --shadow: 0 24px 80px rgba(58, 38, 20, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", Verdana, sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 196, 87, 0.38), transparent 28rem),
    radial-gradient(circle at 84% 16%, rgba(46, 149, 155, 0.24), transparent 26rem),
    linear-gradient(135deg, #f5e0ba 0%, #fff7e7 45%, #e8dac0 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(90deg, rgba(45, 33, 22, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(45, 33, 22, 0.04) 1px, transparent 1px);
  background-size: 38px 38px;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.hero {
  position: relative;
  padding: 32px clamp(18px, 4vw, 56px) 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 980px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 7vw, 6.6rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
}

.subtitle {
  max-width: 760px;
  margin: 18px 0 0;
  color: #4f473e;
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.status {
  display: inline-flex;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 238, 0.7);
  color: var(--muted);
  font-size: 0.86rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
}

.tour-button,
.repo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border: 1px solid rgba(31, 91, 80, 0.25);
  border-radius: 999px;
  padding: 8px 13px;
  text-decoration: none;
}

.tour-button {
  background: rgba(31, 91, 80, 0.92);
  color: #fff8ea;
  font-weight: 850;
  box-shadow: 0 10px 28px rgba(31, 91, 80, 0.18);
}

.repo-link {
  background: rgba(255, 250, 238, 0.7);
  color: var(--accent);
  font-weight: 850;
}

.repo-link:hover {
  background: rgba(255, 250, 238, 0.95);
}

.layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(310px, 380px);
  gap: 18px;
  padding: 0 clamp(18px, 4vw, 56px) 42px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.main-panel {
  min-width: 0;
  padding: clamp(16px, 2.6vw, 28px);
}

.side-panel {
  align-self: start;
  display: grid;
  gap: 14px;
}

.controls {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}

.explainer {
  margin-bottom: 16px;
  border: 1px solid rgba(31, 91, 80, 0.18);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(31, 91, 80, 0.08), rgba(232, 105, 45, 0.07)),
    rgba(255, 255, 255, 0.34);
  overflow: hidden;
}

.explainer summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 16px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.explainer summary::-webkit-details-marker {
  display: none;
}

.explainer summary span {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.explainer summary small {
  color: var(--muted);
  font-weight: 750;
}

.explainer summary::after {
  content: "+";
  display: grid;
  place-items: center;
  grid-column: 2;
  grid-row: 1 / span 2;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 250, 238, 0.75);
  color: var(--accent);
  font-size: 1.45rem;
  font-weight: 900;
}

.explainer[open] summary::after {
  content: "−";
}

.explainer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0 18px 18px;
}

.explainer-grid section {
  border: 1px solid rgba(59, 45, 31, 0.11);
  border-radius: 18px;
  padding: 14px;
  background: rgba(255, 250, 238, 0.54);
}

.explainer-grid h2 {
  margin: 0 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.18rem;
  letter-spacing: -0.03em;
}

.explainer-grid p {
  margin: 8px 0 0;
  color: #4f473e;
  font-size: 0.95rem;
  line-height: 1.48;
}

.architecture-figure {
  margin: 0 18px 18px;
  border: 1px solid rgba(59, 45, 31, 0.13);
  border-radius: 20px;
  padding: clamp(10px, 2vw, 16px);
  background: rgba(255, 250, 238, 0.58);
}

.architecture-figure img {
  display: block;
  width: 100%;
  max-height: 760px;
  object-fit: contain;
  border-radius: 14px;
  background: #fffaf0;
}

.architecture-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.4;
}

select,
textarea,
input[type="text"],
input[type="number"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  outline: none;
}

select,
input[type="text"],
input[type="number"] {
  min-height: 42px;
  padding: 8px 12px;
}

textarea {
  min-height: 76px;
  padding: 12px;
  resize: vertical;
}

.primary,
.secondary,
.danger {
  min-height: 42px;
  border: 0;
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 800;
}

.primary {
  color: #fffaf0;
  background: #193f39;
}

.secondary {
  color: var(--ink);
  background: #ead5ad;
}

.danger {
  color: #fff5ed;
  background: var(--danger);
}

.prompt-box {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

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

.swatch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.swatch::before {
  content: "";
  width: 20px;
  height: 8px;
  border-radius: 999px;
}

.swatch.head0::before {
  background: rgb(var(--head-0));
}

.swatch.head1::before {
  background: rgb(var(--head-1));
}

.token-canvas {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 7px 5px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(rgba(255, 251, 242, 0.62), rgba(255, 251, 242, 0.62)),
    repeating-linear-gradient(0deg, transparent 0 34px, rgba(82, 58, 32, 0.045) 34px 35px);
}

.token-card {
  display: inline-grid;
  grid-template-rows: auto 6px 6px;
  gap: 3px;
  min-width: 30px;
  max-width: 180px;
  border: 1px solid transparent;
  border-radius: 13px;
  padding: 5px 6px 6px;
  background: rgba(255, 255, 255, 0.36);
  color: var(--ink);
  text-align: center;
}

.token-card:hover {
  border-color: rgba(31, 91, 80, 0.42);
}

.token-card.selected {
  outline: 2px solid rgba(31, 91, 80, 0.72);
}

.token-card.focus {
  background: rgba(255, 238, 190, 0.86);
}

.token-card.special {
  opacity: 0.62;
}

.word {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.96rem;
  font-weight: 750;
}

.heat {
  display: block;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(90, 72, 52, 0.12);
  position: relative;
  overflow: hidden;
}

.heat::before {
  content: "";
  display: block;
  width: calc(var(--alpha) * 100%);
  height: 100%;
  border-radius: inherit;
}

.heat-0::before {
  background: rgba(var(--head-0), 0.95);
}

.heat-1::before {
  background: rgba(var(--head-1), 0.95);
}

.decoded {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-left: 4px solid rgba(31, 91, 80, 0.34);
  color: #4d4136;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  line-height: 1.5;
}

.card {
  padding: 16px;
}

.card h2 {
  margin: 0 0 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.selected-token {
  margin: 0 0 8px;
  color: var(--muted);
  font-weight: 800;
}

.suggestions {
  display: grid;
  gap: 6px;
  margin-top: 8px;
  max-height: 250px;
  overflow: auto;
}

.suggestions button,
.prediction {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.46);
  color: var(--ink);
  text-align: left;
}

.suggestions button {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
}

.suggestions span {
  color: var(--muted);
  font-size: 0.82rem;
}

.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

.button-grid .wide {
  grid-column: 1 / -1;
}

.generation-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.slider-row,
.number-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}

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

.predictions {
  display: grid;
  gap: 7px;
}

.prediction {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 10px;
  padding: 9px 10px;
}

.pred-token {
  font-weight: 850;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pred-prob {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.pred-bar {
  grid-column: 1 / -1;
  height: 7px;
  border-radius: 999px;
  background: rgba(47, 38, 25, 0.11);
  overflow: hidden;
}

.pred-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgb(var(--head-1)), rgb(var(--head-0)));
}

.notes {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.tour-card {
  position: fixed;
  z-index: 100;
  width: min(360px, calc(100vw - 36px));
  border: 1px solid rgba(255, 250, 238, 0.62);
  border-radius: 24px;
  padding: 16px;
  background: #fff6e5;
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(25, 18, 10, 0.34);
}

.tour-step {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tour-card h2 {
  margin: 0 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  letter-spacing: -0.04em;
}

.tour-card p {
  margin: 0;
  color: #51463b;
  line-height: 1.45;
}

.tour-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}

.tour-actions button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.tour-highlight {
  position: relative;
  z-index: 80;
  border-radius: 18px;
  outline: 4px solid rgba(255, 151, 45, 0.96);
  outline-offset: 6px;
  background-color: rgba(255, 250, 238, 0.96);
  box-shadow:
    0 0 0 11px rgba(255, 246, 220, 0.72),
    0 0 0 16px rgba(31, 91, 80, 0.16),
    0 22px 80px rgba(43, 28, 12, 0.22);
  animation: tourPulse 1.7s ease-in-out infinite;
}

@keyframes tourPulse {
  0%,
  100% {
    outline-color: rgba(255, 151, 45, 0.82);
  }

  50% {
    outline-color: rgba(31, 91, 80, 0.95);
  }
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .explainer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    padding-top: 22px;
  }

  .main-panel,
  .card {
    border-radius: 20px;
  }

  .token-canvas {
    padding: 10px;
  }

  .explainer summary {
    grid-template-columns: 1fr;
  }

  .explainer summary::after {
    grid-column: 1;
    grid-row: 3;
  }

  .tour-actions {
    grid-template-columns: 1fr;
  }
}