:root {
  color-scheme: light dark;
  --bg: #f6f0e8;
  --surface: #fffaf3;
  --surface-strong: #ffffff;
  --text: #231f20;
  --muted: #756b60;
  --line: #e2d6c8;
  --primary: #9d4edd;
  --primary-strong: #6d28d9;
  --success: #0f766e;
  --warning: #c2410c;
  --shadow: 0 18px 50px rgb(52 35 15 / 12%);
  font-family:
    "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151215;
    --surface: #201b22;
    --surface-strong: #2a2330;
    --text: #f7efe7;
    --muted: #b9afa6;
    --line: #413744;
    --primary: #c084fc;
    --primary-strong: #a855f7;
    --success: #5eead4;
    --warning: #fdba74;
    --shadow: 0 18px 50px rgb(0 0 0 / 28%);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgb(157 78 221 / 18%), transparent 36rem),
    radial-gradient(circle at top right, rgb(15 118 110 / 12%), transparent 32rem), var(--bg);
  color: var(--text);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.hero,
.layout,
.footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 36px 0 20px;
}

.topbar,
.section-heading,
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar__actions,
.card__actions,
.filters,
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4.5rem);
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 0;
  font-size: 1.35rem;
}

.hero__intro {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 22px;
  align-items: start;
  padding: 20px 0 44px;
}

.panel,
.card,
.empty-state {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
}

.panel {
  padding: 22px;
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-strong);
  color: var(--text);
  outline: none;
  padding: 12px 14px;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgb(157 78 221 / 16%);
}

.form__meta,
.result-summary,
.card__meta,
.footer {
  color: var(--muted);
  font-size: 0.92rem;
}

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

.button,
.chip {
  border: 0;
  border-radius: 999px;
  padding: 10px 15px;
  font-weight: 800;
  transition:
    transform 0.15s ease,
    background 0.15s ease;
}

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

.button--primary {
  background: var(--primary-strong);
  color: white;
}

.button--ghost,
.chip {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
}

.chip--active,
.tag--active {
  background: var(--text);
  color: var(--surface);
}

.content {
  min-width: 0;
}

.toolbar {
  margin-bottom: 14px;
}

.search {
  min-width: min(360px, 100%);
}

.filters,
.tag-filter {
  margin-bottom: 14px;
}

.result-summary {
  min-height: 1.4em;
}

.cards {
  display: grid;
  gap: 16px;
}

.card {
  display: grid;
  grid-template-columns: 140px 1fr;
  overflow: hidden;
}

.card__cover {
  min-height: 100%;
  background: linear-gradient(135deg, rgb(157 78 221 / 22%), rgb(15 118 110 / 18%));
}

.card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: 18px;
}

.card__title {
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.card__url {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  color: var(--primary);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card__note {
  margin: 12px 0;
  color: var(--muted);
  line-height: 1.7;
  white-space: pre-wrap;
}

.card__meta,
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.badge {
  border-radius: 999px;
  background: rgb(157 78 221 / 12%);
  color: var(--primary);
  padding: 5px 9px;
  font-size: 0.82rem;
  font-weight: 800;
}

.badge--read {
  color: var(--success);
}

.badge--archived {
  color: var(--warning);
}

.empty-state {
  padding: 44px 24px;
  text-align: center;
}

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

.hidden {
  display: none;
}

.footer {
  padding: 0 0 32px;
  text-align: center;
}

@media (max-width: 860px) {
  .layout,
  .card {
    grid-template-columns: 1fr;
  }

  .topbar,
  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .card__cover {
    min-height: 170px;
  }
}

@media (max-width: 520px) {
  .hero,
  .layout,
  .footer {
    width: min(100% - 22px, 1180px);
  }

  .panel,
  .card,
  .empty-state {
    border-radius: 22px;
  }

  .topbar__actions,
  .button,
  .chip {
    width: 100%;
  }

  .button,
  .chip {
    justify-content: center;
    text-align: center;
  }
}