:root {
  color-scheme: light;
  --ink: #18201c;
  --text: #2f3934;
  --muted: #707b75;
  --line: #d8ded8;
  --line-strong: #c8d1ca;
  --page: #f4f1ea;
  --panel: #fffdf8;
  --panel-soft: #f8f5ee;
  --sage: #4f7f68;
  --sage-dark: #245846;
  --clay: #b96545;
  --blue: #456a86;
  --danger: #aa4d4b;
  --shadow: 0 18px 48px rgba(39, 45, 40, 0.1);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(79, 127, 104, 0.1) 1px, transparent 1px),
    linear-gradient(180deg, rgba(69, 106, 134, 0.08) 1px, transparent 1px),
    var(--page);
  background-size: 44px 44px;
}

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

.app-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 32px;
}

.topbar {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.9);
  box-shadow: 0 10px 28px rgba(39, 45, 40, 0.06);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, transparent 42%, rgba(255, 255, 255, 0.5) 42% 58%, transparent 58%),
    var(--sage-dark);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  line-height: 1.15;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.intro-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.54fr);
  gap: 28px;
  align-items: end;
  padding: 22px 2px 18px;
}

.intro-strip h1 {
  max-width: 640px;
  margin: 8px 0 0;
  font-size: clamp(32px, 4.2vw, 52px);
  line-height: 1.06;
  letter-spacing: 0;
}

.intro-strip > p {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
}

.eyebrow {
  margin: 0;
  color: var(--sage);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.analysis-form,
.signal-panel,
.result-panel,
dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.analysis-form,
.signal-panel,
.result-panel {
  padding: 20px;
}

.form-header,
.panel-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 52px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 5px 0 0;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: 0;
}

label {
  display: grid;
  gap: 7px;
  color: var(--text);
  font-size: 14px;
  font-weight: 750;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  background: #fffefa;
  outline: none;
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    background-color 0.16s ease;
}

input,
select {
  height: 42px;
  padding: 0 12px;
}

textarea {
  resize: vertical;
  min-height: 84px;
  padding: 11px 12px;
  line-height: 1.58;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--sage);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(79, 127, 104, 0.13);
}

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

.analysis-form > label {
  margin-bottom: 14px;
}

.slider-grid {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.slider-grid label {
  color: var(--muted);
}

.slider-grid b {
  color: var(--sage-dark);
}

.slider-grid input {
  height: 28px;
  padding: 0;
  accent-color: var(--sage);
}

.actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 2px;
}

.primary-button,
.icon-button {
  border-radius: 8px;
  cursor: pointer;
}

.primary-button {
  min-height: 44px;
  border: 1px solid #1f4d3e;
  padding: 0 18px;
  color: white;
  background: var(--sage-dark);
  font-weight: 850;
  box-shadow: 0 10px 22px rgba(36, 88, 70, 0.2);
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background-color 0.16s ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  background: #1c4c3c;
  box-shadow: 0 13px 26px rgba(36, 88, 70, 0.24);
}

.primary-button:disabled {
  cursor: wait;
  background: #87a294;
  border-color: #87a294;
  transform: none;
}

.icon-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: #f3f0e8;
  font-size: 18px;
  transition:
    background-color 0.16s ease,
    transform 0.16s ease;
}

.icon-button:hover {
  background: #e9e5dc;
  transform: translateY(-1px);
}

.config-status {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.insight-column {
  position: sticky;
  top: 16px;
  display: grid;
  gap: 18px;
}

.signal-panel {
  min-height: 278px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.98), rgba(248, 246, 240, 0.96)),
    var(--panel);
}

.signal-panel canvas {
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  max-height: 360px;
  display: block;
  margin: 4px auto 0;
}

.signal-caption {
  min-width: 78px;
  padding: 8px 10px;
  border: 1px solid rgba(79, 127, 104, 0.24);
  border-radius: 8px;
  background: #f7fbf6;
  text-align: right;
}

.signal-caption span {
  display: block;
  color: var(--sage-dark);
  font-size: 28px;
  line-height: 1;
  font-weight: 900;
}

.signal-caption small {
  color: var(--muted);
}

.result-panel {
  min-height: 0;
  background: #fffdf8;
}

.hidden {
  display: none;
}

.result-section {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.result-section:first-child {
  margin-top: 18px;
}

.result-section h3 {
  margin: 0 0 8px;
  color: var(--sage-dark);
  font-size: 16px;
}

.result-section p,
.result-section li {
  color: var(--text);
  line-height: 1.72;
}

.result-section ul {
  padding-left: 19px;
  margin: 0;
}

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

dialog {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
}

dialog::backdrop {
  background: rgba(22, 27, 24, 0.46);
}

.settings-form {
  padding: 22px;
}

.settings-form label {
  margin-bottom: 16px;
}

@media (max-width: 940px) {
  .intro-strip,
  .workspace {
    grid-template-columns: 1fr;
  }

  .intro-strip {
    gap: 12px;
  }

  .insight-column {
    position: static;
  }

  .signal-panel canvas {
    max-height: 380px;
  }
}

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 24px, 1240px);
    padding: 12px 0 24px;
  }

  .topbar {
    min-height: 58px;
  }

  .intro-strip {
    padding: 22px 0 16px;
  }

  .intro-strip h1 {
    font-size: 31px;
  }

  .intro-strip > p {
    font-size: 15px;
  }

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

  .analysis-form,
  .signal-panel,
  .result-panel {
    padding: 16px;
  }

  .signal-panel canvas {
    max-height: none;
  }
}