:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --panel: #ffffff;
  --text: #202124;
  --muted: #6b7177;
  --line: #d7d9db;
  --teal: #067d74;
  --plum: #7d3c62;
  --amber: #a86600;
  --danger: #b42318;
  --shadow: 0 14px 30px rgb(20 28 34 / 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151718;
    --panel: #1f2324;
    --text: #f2f4f4;
    --muted: #a9b0b4;
    --line: #343a3e;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

.age-gate {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: none;
  place-items: center;
  padding: 24px;
  background: color-mix(in srgb, var(--bg), black 8%);
}

.age-gate.active {
  display: grid;
}

.age-panel {
  width: min(100%, 480px);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.age-panel img {
  width: 64px;
  height: 64px;
  border-radius: 8px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.app-shell {
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  padding: 18px;
  background: color-mix(in srgb, var(--panel), var(--bg) 26%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgb(20 28 34 / 0.12);
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

nav {
  display: grid;
  gap: 6px;
}

.nav-button {
  border: 0;
  border-radius: 7px;
  padding: 10px 12px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.nav-button.active {
  background: color-mix(in srgb, var(--teal), transparent 84%);
  color: var(--teal);
  font-weight: 700;
}

main {
  padding: 24px;
  overflow: auto;
}

.view {
  display: none;
  max-width: 1120px;
  margin: 0 auto;
}

.view.active {
  display: block;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 2px;
  font-size: 1.7rem;
  letter-spacing: 0;
}

h2 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.topbar p,
.panel p {
  color: var(--muted);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.metric,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric {
  padding: 16px;
}

.metric span,
.privacy-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.metric strong {
  display: block;
  margin-top: 6px;
  font-size: 1.5rem;
}

.panel {
  padding: 16px;
  margin-bottom: 14px;
}

.prediction-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.prediction-list div {
  border-left: 3px solid var(--teal);
  padding-left: 10px;
}

dt {
  color: var(--muted);
  font-size: 0.84rem;
}

dd {
  margin: 4px 0 0;
  font-weight: 700;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.timeline li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

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

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.9rem;
}

input,
select,
textarea,
fieldset {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 11px;
  background: var(--panel);
  color: var(--text);
}

textarea {
  resize: vertical;
}

input[type="range"] {
  padding: 0;
}

fieldset {
  margin: 0;
}

legend {
  color: var(--muted);
  padding: 0 4px;
}

.tag-field {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 8px;
}

.tag-field label,
.tag-field input {
  width: auto;
}

.tag-field label {
  grid-template-columns: auto 1fr;
  align-items: center;
}

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

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
.file-button {
  border: 1px solid color-mix(in srgb, var(--teal), black 8%);
  border-radius: 7px;
  padding: 10px 13px;
  background: var(--teal);
  color: white;
  cursor: pointer;
  font-weight: 700;
}

button.secondary {
  background: var(--plum);
  border-color: var(--plum);
}

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

.icon-button {
  width: 40px;
  height: 40px;
  padding: 0;
}

.file-button input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.checkbox {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.checkbox input {
  width: auto;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 0.84rem;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 2;
    min-width: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  nav {
    display: flex;
    gap: 6px;
    flex-wrap: nowrap;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav-button {
    flex: 0 0 96px;
    width: 96px;
    min-width: 96px;
    text-align: center;
    white-space: nowrap;
  }

  main {
    padding: 16px;
  }

  .metric-grid,
  .prediction-list,
  .form-grid,
  .split,
  .privacy-grid {
    grid-template-columns: 1fr;
  }
}