:root {
  --bg: #f4efe7;
  --paper: rgba(255, 252, 246, 0.88);
  --paper-strong: #fffaf2;
  --ink: #1f2933;
  --muted: #5b6672;
  --line: rgba(31, 41, 51, 0.11);
  --accent: #c26d2d;
  --accent-deep: #8d4d20;
  --teal: #2f7a78;
  --warning: #a4442d;
  --shadow: 0 24px 70px rgba(55, 44, 31, 0.12);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "BIZ UDPGothic", "Hiragino Sans", "Yu Gothic", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(194, 109, 45, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(47, 122, 120, 0.18), transparent 28%),
    linear-gradient(180deg, #f6f0e7 0%, #efe6da 100%);
}

button,
input,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 22px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero-copy,
.hero-stats,
.panel,
.slack-thread-card,
.result-card,
.summary-card,
.recent-card,
.hint-card,
.empty-state {
  background: var(--paper);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero-copy {
  padding: 28px;
}

.eyebrow,
.section-label {
  margin: 0 0 8px;
  color: var(--accent-deep);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.panel h2,
.result-card h4 {
  margin: 0;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.02;
}

.hero-text,
.panel-copy,
.recent-card p,
.hint-card p,
.draft-overview,
.case-item p,
.line-main p,
.recent-empty,
.empty-state {
  color: var(--muted);
  line-height: 1.7;
}

.hero-stats {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.stat-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.stat-card strong {
  font-size: 20px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
}

.panel {
  padding: 24px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.template-link {
  color: var(--teal);
  text-decoration: none;
  font-weight: 700;
}

.slack-thread-card {
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid rgba(47, 122, 120, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(245, 252, 251, 0.88)),
    var(--paper);
}

.stack-form,
.estimate-form {
  display: grid;
  gap: 14px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  font-size: 13px;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.primary-button,
.secondary-button,
.accent-button {
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 700;
  transition: transform 0.16s ease, opacity 0.16s ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--teal), #1f5b58);
  color: #fff;
}

.secondary-button {
  background: rgba(31, 41, 51, 0.08);
  color: var(--ink);
  border: 1px solid rgba(31, 41, 51, 0.12);
}

.accent-button {
  background: linear-gradient(135deg, var(--accent), #9d5724);
  color: #fff;
}

.primary-button:hover,
.secondary-button:hover,
.accent-button:hover {
  transform: translateY(-1px);
  opacity: 0.96;
}

.summary-card,
.hint-card,
.empty-state {
  padding: 18px;
}

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

.hint-grid,
.result-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.recent-list,
.warning-list,
#lineItems,
#similarCases {
  display: grid;
  gap: 12px;
}

.recent-card,
.line-item,
.case-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
}

.recent-top,
.case-meta,
.result-summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.recent-title {
  margin: 8px 0 6px;
  font-weight: 700;
}

.empty-state {
  margin-top: 20px;
}

.hidden {
  display: none;
}

.result-panel {
  margin-top: 20px;
  display: grid;
  gap: 16px;
}

.confidence-pill {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: rgba(47, 122, 120, 0.12);
  color: var(--teal);
}

.confidence-pill[data-confidence="medium"] {
  background: rgba(194, 109, 45, 0.12);
  color: var(--accent-deep);
}

.confidence-pill[data-confidence="low"] {
  background: rgba(164, 68, 45, 0.12);
  color: var(--warning);
}

.warning-item {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(164, 68, 45, 0.08);
  color: var(--warning);
}

.line-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: start;
}

.line-index {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(194, 109, 45, 0.12);
  color: var(--accent-deep);
  font-weight: 700;
}

.line-main strong,
.case-item strong {
  display: block;
  margin-bottom: 6px;
}

.line-meta {
  display: grid;
  gap: 6px;
  text-align: right;
  white-space: nowrap;
  color: var(--muted);
}

#draftText {
  min-height: 240px;
  background: rgba(252, 248, 240, 0.96);
}

@media (max-width: 980px) {
  .hero,
  .workspace,
  .hint-grid,
  .result-columns,
  .field-grid {
    grid-template-columns: 1fr;
  }

  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 18px;
  }
}