:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-subtle: #f8fafb;
  --surface-accent: #eef6f5;
  --ink: #162127;
  --muted: #61707c;
  --line: #d8e0e5;
  --line-strong: #c6d0d8;
  --accent: #1f6f66;
  --accent-strong: #164f49;
  --danger: #b5473f;
  --shadow: 0 18px 44px rgba(24, 39, 55, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f7f9fb 0%, var(--bg) 100%);
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 36px 24px 56px;
}

.page-header {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 24px;
  align-items: start;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.02;
  max-width: 12ch;
}

h2 {
  font-size: 1.25rem;
}

h3 {
  font-size: 1rem;
}

.lead {
  max-width: 68ch;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.header-meta {
  display: grid;
  gap: 14px;
}

.meta-card,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.meta-card {
  padding: 18px;
}

.meta-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
}

.meta-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.92rem;
}

.meta-label,
.section-kicker,
.metric-label {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.92fr);
  gap: 24px;
  align-items: start;
}

.form-panel,
.result-panel {
  padding: 26px;
}

.result-panel {
  position: sticky;
  top: 24px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 18px;
}

.section-heading.compact {
  margin-bottom: 16px;
}

.section-note {
  max-width: 28ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: right;
}

.field-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.field-section:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.field-section-header {
  margin-bottom: 14px;
}

.field-section-header p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.field-grid {
  display: grid;
  gap: 16px;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-col {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field-wrap label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.91rem;
  font-weight: 600;
}

.field-wrap small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

input,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 13px;
  background: var(--surface-subtle);
  font: inherit;
  color: var(--ink);
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(31, 111, 102, 0.08);
}

.form-actions {
  margin-top: 28px;
}

.primary-btn {
  min-height: 48px;
  border: 0;
  border-radius: 12px;
  padding: 0 18px;
  background: var(--accent);
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.primary-btn:hover {
  background: var(--accent-strong);
}

.result-hero,
.metric-card,
.empty-state,
.note-block {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-subtle);
}

.result-hero {
  padding: 18px;
  background: #f6f9fb;
}

.result-hero.is-positive {
  background: var(--surface-accent);
  border-color: #cfe3df;
}

.result-hero-row {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}

.result-hero-row strong {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
}

.status-positive {
  background: rgba(31, 111, 102, 0.1);
  color: var(--accent-strong);
}

.status-neutral {
  background: #eef2f5;
  color: #4a5a66;
}

.metric-stack {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.metric-card,
.empty-state,
.note-block {
  padding: 18px;
}

.metric-value {
  margin: 8px 0 0;
  font-size: 1.35rem;
  font-weight: 650;
  line-height: 1.2;
}

.metric-value.small {
  font-size: 1.08rem;
}

.metric-note {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.92rem;
}

.split-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 10px 0 0;
}

.tag-list li {
  padding: 8px 11px;
  border-radius: 999px;
  background: #edf2f6;
  color: #2f3f4a;
  font-size: 0.86rem;
  font-weight: 500;
}

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

.empty-state p {
  margin: 0;
  font-weight: 600;
  color: var(--ink);
}

.empty-state span {
  display: block;
  margin-top: 6px;
  line-height: 1.5;
  font-size: 0.92rem;
}

.note-block {
  margin-top: 14px;
}

.note-block h3 {
  margin-bottom: 10px;
}

.note-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.note-list li + li {
  margin-top: 8px;
}

.error {
  margin: 6px 0 0;
  color: var(--danger);
  font-size: 0.8rem;
}

@media (max-width: 1080px) {
  .page-header,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .result-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 24px 16px 40px;
  }

  .section-heading {
    display: block;
  }

  .section-note {
    max-width: none;
    margin-top: 8px;
    text-align: left;
  }

  .three-col,
  .two-col,
  .split-card {
    grid-template-columns: 1fr;
  }

  .result-hero-row {
    display: block;
  }

  .status-badge {
    margin-top: 10px;
  }
}