/*
 * One stylesheet, no framework, no build step.
 *
 * Two rules from the plan shape it: status is never carried by color alone
 * (section 21), and motion respects the reduced-motion preference.
 */

:root {
  --bg: #12141a;
  --bg-panel: #1a1d26;
  --bg-raised: #232733;
  --border: #333949;
  --text: #e6e8ee;
  --text-muted: #9aa2b6;
  --accent: #7aa2f7;
  --accent-strong: #a5c0ff;
  --ok: #6ec28a;
  --warn: #e0af68;
  --danger: #f07178;
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fa;
    --bg-panel: #ffffff;
    --bg-raised: #eef0f6;
    --border: #d3d8e4;
    --text: #1b1e27;
    --text-muted: #5b6377;
    --accent: #2f5bd7;
    --accent-strong: #1a3fa8;
    --ok: #237a45;
    --warn: #8a5a00;
    --danger: #b3261e;
    color-scheme: light;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 1rem 4rem;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  margin: 0 0 0.4rem;
}

h1 {
  font-size: 1.5rem;
}
h2 {
  font-size: 1.15rem;
}
h3 {
  font-size: 1rem;
}

p {
  margin: 0 0 0.6rem;
}

/* ---------- layout ---------- */

.site-header,
main,
.site-footer {
  max-width: 68rem;
  margin: 0 auto;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  justify-content: space-between;
  padding: 1.5rem 0 1rem;
  border-bottom: 1px solid var(--border);
}

.tagline {
  color: var(--text-muted);
  margin: 0;
  max-width: 46ch;
}

.site-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 1rem 0;
}

.panel--controls {
  position: sticky;
  top: 0;
  z-index: 5;
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.subpanel {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.row.wrap {
  flex-wrap: wrap;
}

.muted {
  color: var(--text-muted);
}

.footnote {
  font-size: 0.85rem;
}

.lede {
  max-width: 60ch;
}

.plain {
  margin: 0.5rem 0;
  padding-left: 1.2rem;
}

/* ---------- controls ---------- */

button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 0.55rem 0.9rem;
  /* 44px minimum touch target (section 21). */
  min-height: 44px;
  cursor: pointer;
  background: var(--bg-raised);
  color: var(--text);
}

button:hover:not(:disabled) {
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d1017;
  font-weight: 600;
}

button.secondary {
  background: var(--bg-raised);
}

button.ghost {
  background: transparent;
}

button.link {
  background: none;
  border: none;
  padding: 0;
  min-height: 0;
  color: var(--accent-strong);
  text-align: left;
  text-decoration: underline;
}

input,
select,
textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
  min-height: 44px;
}

textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.9rem;
  resize: vertical;
}

input[type="number"] {
  width: 5.5rem;
}

input[type="search"],
input[type="text"] {
  min-width: min(22rem, 100%);
}

input[type="checkbox"] {
  min-height: 0;
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
}

:focus-visible {
  outline: 3px solid var(--accent-strong);
  outline-offset: 2px;
}

.file-button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.import {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.settings {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.settings label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.recents {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

/* ---------- messages ---------- */

.message {
  max-width: 68rem;
  margin: 1rem auto 0;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.message--error {
  border-color: var(--danger);
}
.message--warn {
  border-color: var(--warn);
}
.message--ok {
  border-color: var(--ok);
}

.warn {
  color: var(--warn);
}

.warn-panel {
  border-left: 3px solid var(--warn);
  padding-left: 0.75rem;
}

.status {
  color: var(--accent-strong);
}

.prompt {
  background: var(--bg-raised);
  border-left: 3px solid var(--accent);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
}

/* ---------- cards ---------- */

.card-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0.5rem 0 0;
}

.card {
  display: grid;
  gap: 0.15rem;
  width: 10.5rem;
  min-height: 6.5rem;
  padding: 0.6rem;
  text-align: left;
  align-content: start;
  background: var(--bg-raised);
  transition: transform 120ms ease, border-color 120ms ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-2px);
}

.card--selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* Selection is also stated in text, never by color alone. */
.card--selected .card__name::after {
  content: " ↓ bottom";
  color: var(--accent-strong);
  font-weight: 600;
}

.card--unresolved {
  border-style: dashed;
}

.card__name {
  font-weight: 600;
  font-size: 0.9rem;
}

.card__type,
.card__cost {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  margin-top: 0.2rem;
}

.pip {
  display: inline-block;
  min-width: 1.1em;
  padding: 0 0.25em;
  margin-right: 0.15em;
  border-radius: 999px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.7rem;
  text-align: center;
}

.chip {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  margin-right: 0.25rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0.5rem 0;
}

.chip--toggle {
  min-height: 32px;
  cursor: pointer;
}

.chip--on {
  border-color: var(--accent);
  color: var(--text);
  background: var(--bg-raised);
  font-weight: 600;
}

.chip--user {
  border-color: var(--accent);
}
.chip--inferred,
.chip--type {
  border-style: dashed;
}

/* ---------- odds table ---------- */

.odds {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-variant-numeric: tabular-nums;
}

.odds th,
.odds td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

.odds thead th {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.odds .num {
  text-align: right;
  font-family: var(--mono);
}

.odds .num--certain {
  font-weight: 700;
}

.odds tbody tr:hover {
  background: var(--bg-raised);
}

.risk {
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
  flex-wrap: wrap;
  font-weight: 600;
}

.risk__icon {
  font-family: var(--mono);
}

.risk--low {
  color: var(--ok);
}
.risk--medium {
  color: var(--warn);
}
.risk--high {
  color: var(--danger);
}

.planner__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.planner__result {
  margin-top: 0.6rem;
}

/* ---------- tag editor & analyze ---------- */

.tag-editor {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: grid;
  gap: 0.5rem;
}

.tag-editor__row {
  display: grid;
  grid-template-columns: minmax(10rem, 16rem) 1fr auto;
  gap: 0.5rem;
  align-items: center;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.tag-input {
  min-width: 8rem;
}

.chip--removable {
  cursor: pointer;
  min-height: 32px;
}

.analyze__results {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: grid;
  gap: 0.4rem;
}

.analyze__results li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.6rem;
  background: var(--bg-raised);
  border-radius: 8px;
}

.analyze__name {
  font-weight: 600;
}

/* ---------- tooltip ---------- */

.tooltip {
  position: absolute;
  z-index: 50;
  width: min(22rem, calc(100vw - 2rem));
  max-height: 80vh;
  overflow-y: auto;
  padding: 0.9rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgb(0 0 0 / 45%);
}

.tooltip[hidden] {
  display: none;
}

.tooltip--sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: auto;
  width: 100%;
  max-height: 70vh;
  border-radius: var(--radius) var(--radius) 0 0;
}

.tooltip__header {
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
  align-items: baseline;
}

.tooltip__name {
  font-weight: 700;
}

.tooltip__image {
  display: block;
  width: 100%;
  max-width: 100%;
  border-radius: 8px;
  margin: 0.6rem 0;
}

.tooltip__type {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.tooltip__oracle {
  white-space: pre-wrap;
  font-size: 0.85rem;
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 0.3rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag {
  display: inline-flex;
  gap: 0.3rem;
  align-items: baseline;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.78rem;
}

.tag__source {
  color: var(--text-muted);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.tag--user {
  border-color: var(--accent);
}

/* ---------- accessibility ---------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  background: var(--accent);
  color: #0d1017;
  padding: 0.5rem 1rem;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
  top: 0;
  z-index: 100;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  .card:hover,
  .card:focus-visible {
    transform: none;
  }
}

@media (max-width: 720px) {
  .card {
    width: calc(50% - 0.25rem);
  }
  .tag-editor__row {
    grid-template-columns: 1fr;
  }
  .site-header {
    align-items: flex-start;
  }
}