:root {
  --bg: #f4efe6;
  --panel: rgba(255, 250, 244, 0.88);
  --panel-strong: #fffaf4;
  --text: #1f1b16;
  --muted: #655c52;
  --line: rgba(91, 75, 58, 0.18);
  --accent: #b64d2d;
  --accent-strong: #8f3518;
  --accent-soft: rgba(182, 77, 45, 0.12);
  --success: #1c7c54;
  --warning: #c47c00;
  --danger: #b42318;
  --shadow: 0 18px 48px rgba(81, 54, 24, 0.12);
  --radius: 22px;
  --mono: "JetBrains Mono", "Consolas", monospace;
  --sans: "IBM Plex Sans KR", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 198, 151, 0.28), transparent 28%),
    radial-gradient(circle at bottom right, rgba(255, 230, 193, 0.45), transparent 30%),
    var(--bg);
}

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

.app-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 26px 20px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 250, 244, 0.95), rgba(245, 237, 226, 0.96));
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), #df8a52);
  color: white;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow);
}

.brand h1,
.topbar h2,
.hero h3,
.panel h3 {
  margin: 0;
}

.brand p,
.hero p,
.hero-note p,
.eyebrow {
  margin: 0;
  color: var(--muted);
}

.tool-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: auto;
  padding-right: 4px;
}

.tool-item {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 18px;
  background: transparent;
  padding: 14px 14px 12px;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.tool-item:hover,
.tool-item.active {
  transform: translateX(4px);
  border-color: rgba(182, 77, 45, 0.24);
  background: rgba(255, 255, 255, 0.6);
}

.tool-item strong,
.tool-item small {
  display: block;
}

.tool-item small {
  margin-top: 4px;
  color: var(--muted);
}

.main {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.topbar,
.hero,
.panel,
.ad-slot {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.topbar {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.topbar-actions,
.lang-toggle,
.panel-header,
.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-btn,
.primary-btn,
.lang-btn {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: white;
  color: var(--text);
  cursor: pointer;
  padding: 10px 14px;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), #d96b40);
  border-color: transparent;
  color: white;
}

.lang-btn.active {
  background: var(--accent-soft);
  border-color: rgba(182, 77, 45, 0.36);
}

.hero {
  padding: 22px 24px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.hero-note {
  background: rgba(255, 255, 255, 0.62);
  border: 1px dashed rgba(182, 77, 45, 0.28);
  border-radius: 18px;
  padding: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(360px, 1.05fr);
  gap: 20px;
}

.panel {
  padding: 20px;
  min-height: 420px;
}

.panel-header {
  justify-content: space-between;
  margin-bottom: 14px;
}

.field,
.checkbox-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
}

textarea,
input[type="text"] {
  width: 100%;
  min-height: 140px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  padding: 16px;
  color: var(--text);
  resize: vertical;
}

input[type="text"] {
  min-height: auto;
}

textarea,
code,
pre,
.result-area {
  font-family: var(--mono);
}

.result-area {
  display: flex;
  flex-direction: column;
  gap: 14px;
  color: var(--text);
}

.result-block,
.summary-card,
.plan-node,
.table-wrap,
.badge-row {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  padding: 14px;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  margin-right: 8px;
  margin-bottom: 8px;
  font-size: 0.88rem;
}

.severity-high {
  color: var(--danger);
}

.severity-medium {
  color: var(--warning);
}

.severity-low {
  color: var(--success);
}

.plan-grid {
  display: grid;
  gap: 10px;
}

.plan-node header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.heat {
  display: inline-flex;
  min-width: 54px;
  justify-content: center;
  border-radius: 999px;
  padding: 5px 10px;
  color: white;
}

.heat-low {
  background: #5e9d6b;
}

.heat-mid {
  background: #d08b29;
}

.heat-high {
  background: #bb3d2f;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.ad-slot {
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 92px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(245, 232, 217, 0.9)),
    repeating-linear-gradient(45deg, rgba(182, 77, 45, 0.03), rgba(182, 77, 45, 0.03) 12px, transparent 12px, transparent 24px);
}

.sidebar-ad {
  margin-top: auto;
}

.content-ad {
  margin-top: auto;
}

.empty-state {
  color: var(--muted);
}

@media (max-width: 1180px) {
  .workspace,
  .hero,
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }
}

@media (max-width: 720px) {
  .main,
  .sidebar {
    padding: 16px;
  }

  .topbar {
    padding: 16px;
    align-items: flex-start;
    flex-direction: column;
  }
}