:root {
  --bg: #fdf6ec;
  --bg-deep: #f5ece0;
  --text: #3d2c2e;
  --muted: rgba(61, 44, 46, 0.68);
  --line: rgba(61, 44, 46, 0.14);
  --accent: #c2714f;
  --accent-soft: rgba(194, 113, 79, 0.12);
  --shadow: rgba(61, 44, 46, 0.04);
  --max-width: 720px;
  --body-font: "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --display-font: "Iowan Old Style", "Palatino Linotype", "Noto Serif SC",
    "Source Han Serif SC", "Songti SC", serif;
  --radius: 18px;
  --timing: 620ms;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--body-font);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.35), transparent 24%),
    radial-gradient(circle at top left, rgba(194, 113, 79, 0.08), transparent 34%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(61, 44, 46, 0.2) 0.7px, transparent 0.8px),
    radial-gradient(circle at 18px 10px, rgba(194, 113, 79, 0.12) 0.6px, transparent 0.7px);
  background-size: 24px 24px, 29px 29px;
  mix-blend-mode: multiply;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms ease;
}

a,
button {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

a:hover,
a:focus-visible,
button:hover,
button:focus-visible {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(194, 113, 79, 0.45);
  outline-offset: 3px;
}

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

button {
  border: 0;
  background: none;
  cursor: pointer;
}

input,
textarea {
  width: 100%;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.34);
  border-radius: 14px;
  padding: 0.82rem 1rem;
  transition:
    border-color 180ms ease,
    background-color 180ms ease;
}

input:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: rgba(194, 113, 79, 0.42);
  background: rgba(255, 255, 255, 0.54);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.page-shell {
  width: min(100%, calc(var(--max-width) + 3rem));
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  position: relative;
}

.skip-link {
  position: absolute;
  left: 1.5rem;
  top: 0;
  transform: translateY(-140%);
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  z-index: 3;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.site-header {
  margin-bottom: 1.9rem;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line);
}

.site-title {
  font-family: var(--display-font);
  font-size: 1.46rem;
  letter-spacing: 0.04em;
  font-weight: 600;
  text-transform: none;
}

.site-nav {
  display: flex;
  gap: 1.15rem;
  font-size: 1rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.site-nav__link {
  font-family: var(--display-font);
  letter-spacing: 0.03em;
}

.site-nav__link.is-active {
  color: var(--text);
}

.site-nav__sep {
  align-self: center;
  width: 1px;
  height: 0.9em;
  background: var(--line);
}

.page-main {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-intro,
.workspace,
.result-summary,
.question-stream,
.site-header {
  opacity: 0;
  animation: fade-up var(--timing) ease forwards;
  animation-delay: calc(var(--stagger, 0) * 0.15s);
}

.eyebrow {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-title {
  margin: 0.65rem 0 0;
  font-family: var(--display-font);
  font-size: clamp(2rem, 4.2vw, 3.25rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-subtitle {
  margin: 0.9rem 0 0;
  max-width: 34rem;
  color: var(--muted);
}

.workspace {
  margin-top: 1.2rem;
  padding-top: 0.6rem;
}

.page-main > .workspace:first-child {
  margin-top: 0;
  padding-top: 0;
}

.workspace__section {
  padding: 1.35rem 0 1.5rem;
  border-top: 1px solid var(--line);
}

.workspace__section--school {
  padding-top: 0;
  border-top: 0;
}

.section-headline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.8rem;
}

.section-headline h2 {
  margin: 0;
  font-family: var(--display-font);
  font-size: 1.08rem;
  font-weight: 600;
}

.picked-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.school-options,
.option-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
}

.school-chip,
.option-chip {
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  color: var(--muted);
  border: 1px solid transparent;
  background: transparent;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.school-chip:hover,
.option-chip:hover {
  transform: translateY(-1px);
}

.school-chip.is-active,
.option-chip.is-active {
  color: var(--accent);
  border-color: rgba(194, 113, 79, 0.26);
  background: var(--accent-soft);
}

.search-field {
  display: block;
  margin-bottom: 0.85rem;
}

.option-cloud {
  max-height: 13rem;
  overflow: auto;
  padding-right: 0.2rem;
  scrollbar-width: thin;
}

.option-cloud--dense .option-chip {
  font-size: 0.9rem;
}

.option-cloud--grouped {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem 1.35rem;
  max-height: 18rem;
  align-items: start;
}

.option-group {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  min-width: 0;
}

.option-group__label {
  margin: 0;
  color: var(--muted);
  font-family: var(--display-font);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.option-group__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.32rem 0.45rem;
}

.option-group__cloud .option-chip {
  padding-inline: 0.66rem;
}

.result-summary {
  margin-top: 1rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.result-summary__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.summary-toggle {
  flex: 0 0 auto;
  padding: 0.08rem 0.46rem;
  border-radius: 999px;
  border: 1px solid rgba(61, 44, 46, 0.1);
  background: rgba(255, 255, 255, 0.18);
  color: var(--muted);
  font-family: var(--display-font);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  line-height: 1.45;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.summary-toggle.is-active {
  color: var(--accent);
  border-color: rgba(194, 113, 79, 0.26);
  background: var(--accent-soft);
}

.question-stream {
  margin-top: 0.8rem;
}

.question-item,
.note-item,
.empty-state {
  padding: 1.45rem 0 1.7rem;
  border-top: 1px solid var(--line);
}

.question-item {
  opacity: 0;
  animation: fade-up 420ms ease forwards;
  animation-delay: calc(var(--item-stagger, 0) * 0.08s);
  content-visibility: auto;
  contain-intrinsic-size: 420px;
}

.question-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  color: var(--muted);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.question-source {
  margin: 0;
}

.question-heading-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 0.5rem;
}

.question-source-quality {
  margin: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.question-text {
  margin: 0.5rem 0 0;
  font-family: var(--display-font);
  font-size: 1.22rem;
  line-height: 1.62;
}

.question-heading-row .question-text {
  margin-top: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.question-inline-school {
  margin: 0.18rem 0 0 auto;
  flex: 0 0 auto;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.tag-grid {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.72rem;
}

.tag-row {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.tag-label {
  color: var(--muted);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tag-values {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.45rem;
}

.tag-values--with-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  column-gap: 0.55rem;
}

.tag-values__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.45rem;
  min-width: 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0 0.62rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.44);
  border: 1px solid rgba(61, 44, 46, 0.08);
  font-size: 0.88rem;
}

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

.note-block {
  margin-top: 0;
}

.note-block.has-content {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px dashed rgba(61, 44, 46, 0.12);
}

.note-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.8rem;
}

.text-button {
  padding: 0;
  color: var(--muted);
}

.text-button.is-primary {
  color: var(--accent);
}

.note-icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid rgba(61, 44, 46, 0.1);
  background: rgba(255, 255, 255, 0.32);
  margin-left: auto;
  align-self: start;
  flex: 0 0 auto;
  font-family: var(--display-font);
  font-size: 1rem;
  line-height: 1;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.note-icon-button span {
  transform: translateY(-0.04rem);
}

.note-icon-button.has-note {
  color: var(--accent);
  border-color: rgba(194, 113, 79, 0.26);
  background: var(--accent-soft);
}

.note-icon-button:hover {
  transform: translateY(-1px);
}

.note-editor {
  display: none;
}

.note-editor.is-open {
  display: block;
  margin-top: 0.72rem;
}

.note-editor textarea {
  min-height: 9rem;
  resize: vertical;
}

.note-editor__actions {
  display: flex;
  gap: 0.8rem;
  justify-content: flex-end;
  margin-top: 0.75rem;
}

.note-editor__save {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff9f3;
}

.note-rendered {
  color: var(--text);
}

.note-rendered > :first-child {
  margin-top: 0;
}

.note-rendered > :last-child {
  margin-bottom: 0;
}

.note-rendered blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 2px solid rgba(194, 113, 79, 0.34);
  color: var(--muted);
}

.note-rendered pre,
.note-rendered code {
  font-family: "SF Mono", "Menlo", monospace;
}

.note-rendered pre {
  overflow: auto;
  padding: 0.8rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.46);
}

.note-rendered a {
  color: var(--accent);
}

.note-updated-at {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.loading-copy,
.empty-state p {
  margin: 0;
  color: var(--muted);
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

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

@media (max-width: 720px) {
  .page-shell {
    padding-inline: 1rem;
  }

  .site-header__inner,
  .question-meta,
  .question-heading-row,
  .result-summary__inner,
  .section-headline {
    flex-direction: column;
    align-items: flex-start;
  }

  .tag-row {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}