:root {
  --bg: #eef3f5;
  --bg-accent: #dde7eb;
  --surface: rgba(255, 255, 255, 0.94);
  --surface-soft: rgba(247, 250, 251, 0.96);
  --surface-strong: #ffffff;
  --text: #123247;
  --text-soft: #516777;
  --line: rgba(18, 50, 71, 0.12);
  --line-strong: rgba(18, 50, 71, 0.2);
  --primary: #1780c9;
  --primary-deep: #123f83;
  --accent: #43b649;
  --accent-soft: rgba(67, 182, 73, 0.14);
  --success: #2f9a44;
  --danger: #a4432b;
  --shadow: 0 18px 46px rgba(18, 50, 71, 0.08);
  --shadow-soft: 0 10px 24px rgba(18, 50, 71, 0.05);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Instrument Sans", "Segoe UI Variable", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(23, 128, 201, 0.12), transparent 26%),
    linear-gradient(180deg, #f7fafb 0%, var(--bg) 48%, var(--bg-accent) 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
}

.page-shell {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
  padding: 1rem 0 4rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.75rem 0 1.35rem;
  min-height: 5rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.65rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(18, 50, 71, 0.08);
  box-shadow: 0 8px 20px rgba(18, 50, 71, 0.05);
  flex: 0 0 auto;
}

.brand-symbol {
  width: 2.1rem;
  height: 2.1rem;
  display: none;
  flex: 0 0 auto;
}

.brand-wordmark {
  width: clamp(168px, 22vw, 212px);
  height: auto;
  display: block;
  border-radius: 14px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem;
}

.site-nav a {
  padding: 0.62rem 0.88rem;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.1;
  transition: background-color 180ms ease, color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(18, 50, 71, 0.06);
  color: var(--text);
}

.eyebrow,
.workspace-head-label,
.sidebar-label,
.shortcut-eyebrow,
.professional-notice-title,
.card-label,
.result-label,
.result-section-label {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.eyebrow {
  color: var(--primary);
  letter-spacing: 0.16em;
  font-size: 0.82rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
  align-items: stretch;
}

.hero-copy,
.clinical-panel,
.feature-card,
.calculator-card,
.platform-card,
.workspace-head-summary,
.workspace-summary-card,
.workspace-sidebar,
.area-shortcut-card,
.area-card,
.summary-card,
.responsibility-card {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.hero-copy {
  padding: clamp(1.45rem, 3.5vw, 2.75rem);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy h1,
.section-heading h2,
.calculator-header h3,
.feature-card h3,
.platform-card h3,
.workspace-summary-card h3,
.area-head h4,
.summary-card strong,
.responsibility-card h2,
.clinical-card strong {
  font-family: "Sora", sans-serif;
}

.hero-copy h1 {
  margin: 0.55rem 0 1rem;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.05em;
  max-width: 12ch;
}

.hero-text,
.section-text,
.calculator-header p,
.feature-card p,
.platform-card p,
.sidebar-help,
.sidebar-count,
.shortcut-card span,
.area-shortcut-card span,
.workspace-summary-card p,
.professional-notice-text,
.responsibility-card p:last-child,
.area-card p,
.area-card li,
.formula-line,
.summary-card span,
.result-note,
.result-disclaimer,
.result-details,
.result-checklist,
.result-section-text {
  color: var(--text-soft);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.4rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.88rem 1.2rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible,
.shortcut-card:hover,
.shortcut-card:focus-visible,
.area-shortcut-card:hover,
.area-shortcut-card:focus-visible {
  transform: translateY(-1px);
}

.button:focus-visible,
.site-nav a:focus-visible,
input:focus-visible,
.filter-chip:focus-visible,
.shortcut-card:focus-visible,
.area-shortcut-card:focus-visible {
  outline: 3px solid rgba(29, 111, 134, 0.22);
  outline-offset: 2px;
}

.button-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 14px 28px rgba(29, 111, 134, 0.22);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--primary-deep);
}

.button-secondary {
  background: rgba(18, 50, 71, 0.06);
  color: var(--text);
  border: 1px solid rgba(18, 50, 71, 0.1);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  padding: 0.68rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 0.94rem;
}

.clinical-panel {
  display: grid;
  gap: 0.85rem;
  padding: 0.95rem;
  border-radius: 24px;
}

.clinical-card {
  padding: 1.1rem;
  border-radius: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.clinical-card-highlight {
  background: linear-gradient(180deg, #143346 0%, #1d4e62 100%);
  color: #fff;
  border-color: transparent;
}

.clinical-card strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.55rem;
  line-height: 1.15;
}

.clinical-card p,
.card-label,
.summary-card span,
.sidebar-help,
.workspace-summary-card p,
.responsibility-card p,
.area-card p,
.area-card li {
  margin: 0;
}

.card-label {
  color: inherit;
  opacity: 0.78;
  font-size: 0.84rem;
}

.section {
  margin-top: 3.5rem;
}

.section-heading {
  max-width: 52rem;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: 0.45rem 0 0.6rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.workspace-section,
.areas-section,
.summary-section,
.responsibility-section,
.catalog-section,
.calculator-section {
  scroll-margin-top: 1rem;
}

.workspace-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.workspace-head-summary {
  min-width: 15rem;
  padding: 0.95rem 1.05rem;
  border-radius: 18px;
  display: grid;
  gap: 0.2rem;
}

.workspace-head-summary strong {
  font-size: 1.1rem;
  font-family: "Sora", sans-serif;
}

.workspace-shell {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.workspace-sidebar {
  position: sticky;
  top: 1rem;
  border-radius: 24px;
  padding: 0.95rem;
  display: grid;
  gap: 0.95rem;
}

.workspace-sidebar-block,
.shortcut-list,
.workspace-main,
.workspace-panels,
.calculator-header,
.calculator-form,
.result-summary,
.result-section {
  display: grid;
  gap: 0.75rem;
}

.sidebar-search,
.calculator-form input {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--surface-strong);
  color: var(--text);
  transition: border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.sidebar-search:focus,
.calculator-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(29, 111, 134, 0.14);
}

.calculator-form input[aria-invalid="true"] {
  border-color: var(--danger);
  background: #fff9f7;
}

.sidebar-list-head,
.area-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.area-head {
  align-items: flex-start;
  gap: 1rem;
}

.filter-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.filter-chip {
  padding: 0.62rem 0.88rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text-soft);
  cursor: pointer;
  font-size: 0.9rem;
}

.filter-chip:hover,
.filter-chip:focus-visible {
  background: rgba(29, 111, 134, 0.08);
  border-color: rgba(29, 111, 134, 0.22);
  color: var(--primary-deep);
}

.filter-chip.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.shortcut-card,
.area-shortcut-card {
  width: 100%;
  text-align: left;
  border-radius: 18px;
  padding: 0.95rem;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.shortcut-card {
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.shortcut-card:hover,
.shortcut-card:focus-visible,
.area-shortcut-card:hover,
.area-shortcut-card:focus-visible {
  border-color: rgba(29, 111, 134, 0.3);
  box-shadow: 0 16px 34px rgba(29, 111, 134, 0.12);
}

.shortcut-card.is-active {
  background: rgba(29, 111, 134, 0.08);
  border-color: rgba(29, 111, 134, 0.4);
  box-shadow: inset 4px 0 0 var(--primary), 0 16px 34px rgba(29, 111, 134, 0.12);
}

.shortcut-card[hidden],
.shortcut-empty[hidden] {
  display: none;
}

.shortcut-card strong,
.area-shortcut-card strong,
.workspace-summary-card h3,
.summary-card strong,
.area-head h4 {
  display: block;
  margin: 0.2rem 0 0.15rem;
  font-size: 1rem;
}

.shortcut-empty {
  margin: 0;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  background: rgba(18, 50, 71, 0.05);
  color: var(--text-soft);
}

.workspace-summary-card {
  border-radius: 24px;
  padding: 1.15rem 1.2rem;
  gap: 0.65rem;
}

.workspace-panel {
  display: none;
}

.workspace-panel.is-active {
  display: grid;
  border-color: rgba(29, 111, 134, 0.34);
  box-shadow: 0 22px 44px rgba(29, 111, 134, 0.12);
}

.workspace-panel.is-active .calculator-header {
  padding-bottom: 0.4rem;
  border-bottom: 1px solid rgba(29, 111, 134, 0.14);
}

.calculator-card,
.feature-card,
.platform-card,
.area-card,
.summary-card {
  border-radius: 24px;
  padding: 1.25rem;
}

.calculator-card {
  gap: 1.1rem;
}

.calculator-header h3,
.feature-card h3,
.platform-card h3,
.responsibility-card h2 {
  margin: 0.3rem 0 0;
}

.calculator-tag,
.area-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}

.calculator-tag {
  padding: 0.34rem 0.68rem;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
}

.calculator-form label {
  font-size: 0.95rem;
  font-weight: 600;
}

.field-help,
.field-error {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  line-height: 1.5;
}

.field-help {
  color: var(--text-soft);
}

.field-error {
  display: none;
  color: var(--danger);
  font-weight: 600;
}

.field-error.is-visible {
  display: block;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.button-reset {
  min-width: 9rem;
}

.result-box {
  display: grid;
  gap: 0.75rem;
  min-height: 160px;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  background: #f5f9fa;
  border: 1px solid var(--line);
}

.result-box[data-state="idle"] {
  background: #f7fafb;
}

.result-box[data-state="success"] {
  background: #f6fbf8;
  border-color: rgba(32, 98, 76, 0.22);
}

.result-box[data-state="error"] {
  background: #fff8f6;
  border-color: rgba(164, 67, 43, 0.22);
}

.result-label,
.result-section-label {
  color: var(--text-soft);
}

.result-value {
  margin: 0;
  color: var(--text);
  font-family: "Sora", sans-serif;
  font-size: 1.3rem;
  line-height: 1.2;
}

.result-box[data-state="success"] .result-value {
  color: var(--success);
}

.result-box[data-state="error"] .result-value {
  color: var(--danger);
}

.result-details,
.result-checklist {
  margin: 0;
  padding-left: 1.1rem;
}

.result-details li,
.result-checklist li {
  margin-bottom: 0.25rem;
  color: var(--text-soft);
}

.result-disclaimer,
.result-section,
.professional-notice {
  border-radius: 16px;
  background: rgba(18, 50, 71, 0.04);
}

.result-disclaimer,
.professional-notice {
  padding: 0.85rem 0.9rem;
}

.result-section {
  padding: 0.9rem 1rem;
}

.result-flags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.result-flag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(220, 127, 55, 0.14);
  color: #9a5a28;
  font-size: 0.8rem;
  font-weight: 700;
}

.area-shortcut-grid,
.summary-grid {
  display: grid;
  gap: 1rem;
}

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

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

.area-card {
  padding: 1.2rem;
}

.area-card ul {
  margin: 0.85rem 0;
  padding-left: 1.1rem;
}

.formula-line {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
}

.area-badge {
  padding: 0.3rem 0.62rem;
  font-size: 0.75rem;
}

.area-badge-active {
  background: rgba(32, 98, 76, 0.12);
  color: var(--success);
}

.area-badge-planned {
  background: rgba(220, 127, 55, 0.14);
  color: #b7682e;
}

.professional-notice {
  display: grid;
  gap: 0.35rem;
}

.professional-notice-title {
  color: var(--primary-deep);
}

.responsibility-card {
  padding: 1.25rem;
}

.responsibility-card h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

@media (max-width: 1100px) {
  .workspace-shell,
  .area-shortcut-grid {
    grid-template-columns: 1fr;
  }

  .workspace-main {
    order: -1;
  }

  .workspace-sidebar {
    position: static;
  }

  .workspace-summary-card {
    padding: 1rem 1.1rem;
  }
}

@media (max-width: 980px) {
  .hero,
  .feature-grid,
  .platform-grid,
  .calculator-grid,
  .summary-grid-wide {
    grid-template-columns: 1fr;
  }

  .workspace-heading {
    display: grid;
  }

  .hero-copy h1 {
    max-width: 13ch;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 1rem), var(--container));
  }

  .site-header {
    align-items: center;
    flex-direction: column;
    gap: 0.8rem;
    padding: 0.6rem 0 1rem;
    min-height: 0;
  }

  .brand-lockup {
    padding: 0.35rem;
    border-radius: 16px;
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    gap: 0;
  }

  .brand-symbol {
    width: 2rem;
    height: 2rem;
    display: block;
  }

  .brand-wordmark {
    display: none !important;
  }

  .site-nav {
    width: 100%;
    justify-content: center;
    gap: 0.35rem;
  }

  .site-nav a {
    flex: 1 1 calc(50% - 0.35rem);
    text-align: center;
    padding: 0.62rem 0.72rem;
    font-size: 0.92rem;
  }

  .section {
    margin-top: 3rem;
  }

  .section-heading {
    margin-bottom: 1rem;
  }

  .hero {
    gap: 0.9rem;
  }

  .hero-copy,
  .clinical-panel,
  .calculator-card,
  .feature-card,
  .platform-card,
  .area-card,
  .summary-card,
  .workspace-summary-card,
  .workspace-sidebar {
    padding: 1rem;
    border-radius: 20px;
  }

  .hero-copy h1 {
    font-size: clamp(2rem, 11vw, 3.2rem);
  }

  .hero-text,
  .section-text {
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .hero-actions,
  .form-actions {
    flex-direction: column;
  }

  .hero-actions .button,
  .form-actions .button {
    width: 100%;
  }

  .hero-points {
    display: grid;
    gap: 0.55rem;
  }

  .hero-points li {
    width: 100%;
    text-align: center;
    padding: 0.72rem 0.85rem;
  }

  .clinical-panel {
    gap: 0.75rem;
  }

  .workspace-head-summary {
    min-width: 0;
    padding: 0.85rem 0.95rem;
    border-radius: 16px;
  }

  .workspace-sidebar-block,
  .shortcut-list,
  .workspace-main {
    gap: 0.8rem;
  }

  .filter-chip-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 0.45rem;
    padding-bottom: 0.1rem;
  }

  .filter-chip {
    flex: 0 0 auto;
    padding: 0.58rem 0.78rem;
    font-size: 0.88rem;
  }

  .shortcut-card,
  .area-shortcut-card {
    padding: 0.9rem;
    border-radius: 16px;
  }

  .shortcut-card strong,
  .area-shortcut-card strong,
  .workspace-summary-card h3 {
    font-size: 0.98rem;
  }

  .calculator-header {
    gap: 0.5rem;
  }

  .sidebar-search,
  .calculator-form input {
    padding: 0.9rem 0.95rem;
    border-radius: 14px;
  }

  .workspace-summary-card {
    display: none;
  }

  .result-box {
    min-height: 0;
    padding: 0.9rem;
  }

  .result-section,
  .result-disclaimer,
  .professional-notice,
  .responsibility-card {
    padding: 0.85rem 0.9rem;
    border-radius: 16px;
  }

  .area-head {
    gap: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}