@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  color-scheme: light;
  --bg: #f4f1ed;
  --bg-2: #e8ecef;
  --card: #fffdf9;
  --stroke: #e0dbd3;
  --text: #1c1b1a;
  --muted: #5c5a56;
  --accent: #2b6cb0;
  --accent-2: #d9822b;
  --shadow: 0 12px 40px rgba(25, 25, 25, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #f9f2e7 0%, #f4f1ed 35%, #e8ecef 100%);
  min-height: 100vh;
}

.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(43, 108, 176, 0.18), transparent 45%),
    radial-gradient(circle at 70% 20%, rgba(217, 130, 43, 0.18), transparent 50%),
    linear-gradient(135deg, #f9f2e7 0%, #f4f1ed 60%, #e8ecef 100%);
  z-index: -1;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 20px 32px;
}

.hero {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  align-items: center;
  margin-bottom: 18px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 8px;
}

h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.05;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 520px;
}

.clarity {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.clarity strong {
  color: var(--text);
  font-weight: 600;
}

.mode-toggle {
  display: inline-flex;
  gap: 8px;
  margin-top: 14px;
  background: rgba(255, 255, 255, 0.06);
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
}

.mode-btn {
  border: none;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.mode-btn.is-active {
  background: var(--accent);
  color: #fff;
}

.explain-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
}

.explain-grid p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-2);
}

.status-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 4px 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
  align-items: stretch;
  grid-auto-rows: minmax(160px, auto);
  min-height: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 20px;
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
}

#params-card {
  grid-column: span 4;
}

#explain-card {
  grid-column: span 12;
}

#controls-card {
  grid-column: span 4;
}

#top-card {
  grid-column: span 4;
}

h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.param-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  flex: 1;
}

.status-inline {
  margin-top: 12px;
  border-top: 1px solid var(--stroke);
  padding-top: 10px;
}

.param {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
}

.param strong {
  color: var(--text);
  font-size: 14px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

label {
  font-size: 13px;
  color: var(--muted);
}

input {
  background: #fffdf9;
  color: var(--text);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: "IBM Plex Mono", monospace;
}

select {
  background: #fffdf9;
  color: var(--text);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: "IBM Plex Mono", monospace;
}

body[data-mode="simple"] .only-detailed {
  display: none !important;
}

body[data-mode="simple"] #controls-card {
  grid-column: span 6;
}

body[data-mode="simple"] #top-card {
  grid-column: span 6;
}

.button-row {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

button {
  border: none;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--stroke);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

button.secondary {
  background: #fff;
  color: var(--accent);
  border: 1px solid rgba(43, 108, 176, 0.3);
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

.progress {
  margin-top: 12px;
}

.progress-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.progress-bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: #f0ebe4;
  overflow: hidden;
  border: 1px solid var(--stroke);
}

.progress-bar div {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s ease;
}

.progress-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.steps {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  margin: 8px 0 4px;
}

.steps div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.steps span {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-2);
  font-size: 12px;
}

.results {
  display: grid;
  gap: 8px;
  font-family: "IBM Plex Mono", monospace;
  overflow: auto;
}

.result-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--stroke);
}

.top-result {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--muted);
}

.top-result strong {
  font-size: 18px;
  color: var(--accent);
}

.result-meta {
  display: grid;
  gap: 6px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.preview-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.preview-item {
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: #fff;
  font-size: 11px;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
}

.topk-list {
  display: grid;
  gap: 6px;
  margin: 8px 0;
}

.topk-list.is-hidden {
  display: none;
}

.topk-item {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid var(--stroke);
  background: #fff;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
}

.top-log {
  margin-top: 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  display: grid;
  gap: 6px;
  max-height: 160px;
  overflow: auto;
}

.spinner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px dashed var(--stroke);
  color: var(--muted);
  font-size: 11px;
  margin: 0;
}

.spinner.is-hidden {
  display: none;
}

.spin {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .explain-grid {
    grid-template-columns: 1fr;
  }
  #explain-card,
  #params-card,
  #controls-card,
  #top-card {
    grid-column: span 12;
  }
}

.eyebrow a {
  color: inherit;
  text-decoration: none;
}