:root {
  --bg: #f6efe4;
  --bg-strong: #efe4d4;
  --surface: rgba(255, 252, 246, 0.88);
  --surface-strong: #fffaf1;
  --ink: #1f2732;
  --muted: #6a6f78;
  --accent: #0f766e;
  --accent-strong: #0b5a54;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --warn: #c2410c;
  --border: rgba(31, 39, 50, 0.12);
  --shadow: 0 24px 80px rgba(71, 53, 29, 0.14);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(252, 146, 87, 0.18), transparent 34%),
    radial-gradient(circle at right center, rgba(15, 118, 110, 0.16), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, #f4ead9 100%);
  color: var(--ink);
  font-family: "IBM Plex Sans JP", "Noto Sans TC", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent);
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.hero {
  display: grid;
  gap: 24px;
  align-items: end;
  grid-template-columns: minmax(0, 1.8fr) minmax(280px, 0.8fr);
  margin-bottom: 28px;
}

.hero-compact {
  grid-template-columns: minmax(0, 1fr);
}

.hero-copy {
  padding: 28px;
  border: 1px solid rgba(31, 39, 50, 0.08);
  border-radius: calc(var(--radius) + 4px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(255, 247, 237, 0.92)),
    var(--surface);
  box-shadow: var(--shadow);
}

.eyebrow,
.panel-kicker,
.status-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--muted);
}

.hero h1,
.panel h2 {
  margin: 10px 0 12px;
  line-height: 1.06;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.3rem);
}

.panel h2 {
  font-size: 1.38rem;
}

.hero-text {
  margin: 0;
  max-width: 58ch;
  color: #3d4651;
  font-size: 1.04rem;
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px;
  align-content: start;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.92), rgba(10, 69, 64, 0.96));
  color: #effcf7;
  box-shadow: var(--shadow);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.92rem;
}

.layout {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 248, 239, 0.88)),
    var(--surface);
  box-shadow: var(--shadow);
}

.panel::after {
  content: "";
  position: absolute;
  inset: auto -20px -40px auto;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.16), transparent 70%);
  pointer-events: none;
}

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

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.form-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.settings-grid {
  margin-bottom: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.93rem;
  color: #3d4651;
}

.field-full {
  grid-column: 1 / -1;
}

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

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(31, 39, 50, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  padding: 14px 16px;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(15, 118, 110, 0.64);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.12);
}

textarea {
  resize: vertical;
  min-height: 180px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 16px;
  padding: 13px 18px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button:active {
  transform: translateY(0);
}

.button-primary {
  background: linear-gradient(135deg, #0f766e, #155e75);
  color: #f5fffb;
  box-shadow: 0 14px 34px rgba(21, 94, 117, 0.28);
}

.button-secondary {
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent-strong);
}

.button-ghost {
  background: rgba(31, 39, 50, 0.06);
  color: var(--ink);
}

.inline-options {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.share-banner {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent-strong);
  border: 1px solid rgba(15, 118, 110, 0.15);
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #3d4651;
}

.checkbox input {
  width: 18px;
  height: 18px;
  padding: 0;
}

.details-card {
  margin-top: 18px;
  padding: 12px 16px 16px;
  border-radius: 18px;
  background: rgba(15, 118, 110, 0.05);
  border: 1px solid rgba(15, 118, 110, 0.12);
}

.details-card summary {
  cursor: pointer;
  color: var(--accent-strong);
}

.details-card .form-grid {
  margin-top: 16px;
}

.details-card .field {
  margin-top: 16px;
}

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  border: 1px solid rgba(15, 118, 110, 0.16);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.chip:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.34);
}

.chip.active {
  background: linear-gradient(135deg, #0f766e, #155e75);
  border-color: transparent;
  color: #f2fff8;
}

.chip-empty {
  cursor: default;
  opacity: 0.7;
}

.status-box {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(31, 39, 50, 0.04);
}

.status-inline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  color: #3d4651;
}

.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(180deg, #fb923c, #f97316);
  box-shadow: 0 0 0 8px rgba(249, 115, 22, 0.12);
}

.image-preview-frame {
  display: grid;
  place-items: center;
  min-height: 280px;
  margin-top: 14px;
  padding: 16px;
  border-radius: 18px;
  border: 1px dashed rgba(31, 39, 50, 0.18);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.06), rgba(255, 255, 255, 0.5)),
    var(--surface-strong);
  overflow: hidden;
}

.image-preview-frame img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 14px;
}

.image-preview-frame p,
.callout {
  margin: 0;
  color: var(--muted);
}

.callout {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(194, 65, 12, 0.08);
  border: 1px solid rgba(194, 65, 12, 0.12);
}

.inline-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.helper-text {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.helper-text-strong {
  margin: 0 0 18px;
  color: var(--accent-strong);
}

.subtle-select {
  min-height: 48px;
}

.preview-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr);
}

.preview-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(31, 39, 50, 0.05);
}

.gallery-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  margin-top: 18px;
}

.gallery-card {
  width: 100%;
  display: grid;
  gap: 12px;
  padding: 14px;
  text-align: left;
  border: 1px solid rgba(31, 39, 50, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
}

.gallery-card.active {
  border-color: rgba(15, 118, 110, 0.44);
  box-shadow: 0 10px 26px rgba(21, 94, 117, 0.16);
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 14px;
  background: rgba(31, 39, 50, 0.05);
}

.gallery-meta {
  display: grid;
  gap: 6px;
}

.gallery-meta strong {
  color: var(--ink);
}

.gallery-meta span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

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

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.result-banner {
  margin-top: 18px;
  padding: 18px;
  border-radius: 20px;
  background: rgba(31, 39, 50, 0.06);
  border: 1px solid rgba(31, 39, 50, 0.1);
}

.result-banner[data-kind="success"] {
  background: rgba(15, 118, 110, 0.1);
  border-color: rgba(15, 118, 110, 0.18);
}

.result-banner[data-kind="error"] {
  background: rgba(194, 65, 12, 0.09);
  border-color: rgba(194, 65, 12, 0.18);
}

.result-message {
  margin: 0;
  line-height: 1.7;
  color: #2f3741;
}

.result-banner[data-kind="success"] .result-message {
  color: #194b47;
}

.result-banner[data-kind="error"] .result-message {
  color: #8d3615;
}

.result-detail {
  margin: 10px 0 0;
  line-height: 1.6;
  color: var(--muted);
}

.result-actions {
  margin-top: 14px;
}

.result-link {
  min-width: 200px;
}

.rendered-preview {
  display: grid;
  gap: 14px;
}

.preview-table-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(31, 39, 50, 0.05);
}

.preview-table-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
}

.preview-table-wrap {
  overflow-x: auto;
}

.preview-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.preview-table th,
.preview-table td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(31, 39, 50, 0.08);
  text-align: left;
  vertical-align: top;
}

.preview-table th {
  color: #2f3741;
  background: rgba(255, 255, 255, 0.66);
}

.preview-table tbody tr:last-child td {
  border-bottom: 0;
}

.preview-empty {
  margin: 0;
  color: var(--muted);
}

.preview-markdown-details {
  margin-top: 16px;
}

.preview-summary {
  margin-top: 10px;
  line-height: 1.7;
  color: #2f3741;
}

.code-block {
  margin: 10px 0 0;
  padding: 18px;
  border-radius: 18px;
  background: #1b2430;
  color: #ecf3fb;
  overflow-x: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.65;
}

.viewer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(20, 24, 32, 0.68);
}

.viewer-backdrop[hidden] {
  display: none !important;
}

.viewer-card {
  width: min(92vw, 980px);
  max-height: 92vh;
  overflow: auto;
  padding: 20px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 247, 237, 0.94)),
    var(--surface);
  box-shadow: var(--shadow);
}

.viewer-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.viewer-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.viewer-card img {
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 16px;
  background: rgba(31, 39, 50, 0.06);
}

.viewer-meta {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.viewer-meta p {
  margin: 0;
  color: #2f3741;
  line-height: 1.6;
}

@media (max-width: 940px) {
  .hero,
  .layout,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    flex-direction: column;
  }

  .inline-field {
    grid-template-columns: 1fr;
  }

  .action-row {
    align-items: stretch;
  }

  .action-row .button {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 18px 14px 40px;
  }

  .hero-copy,
  .panel {
    padding: 18px;
  }

  .form-grid,
  .status-box {
    grid-template-columns: 1fr;
  }
}