:root {
  color-scheme: light;
  --bg: #fcf7f3;
  --bg-soft: #fff0f4;
  --bg-paper: rgba(255, 248, 246, 0.92);
  --bg-strong: #1e1722;
  --text: #20141d;
  --muted: #6f6070;
  --line: rgba(65, 35, 61, 0.11);
  --line-strong: rgba(120, 52, 108, 0.22);
  --accent: #be1463;
  --accent-2: #7a3bc4;
  --accent-soft: #f8dbe8;
  --success: #6ba52d;
  --danger: #dc5d78;
  --shadow: 0 18px 45px rgba(143, 66, 108, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: 1180px;
  --font: "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(247, 206, 224, 0.55), transparent 28%),
    radial-gradient(circle at left 20%, rgba(238, 219, 246, 0.6), transparent 20%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
}

body.is-modal-open {
  overflow: hidden;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.page-shell {
  width: min(calc(100% - 32px), var(--container));
  margin: 18px auto 32px;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 251, 250, 0.9);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.site-nav button,
.secondary-link,
.tab-button,
.ghost-button {
  cursor: pointer;
  border: 0;
  background: transparent;
}

.site-nav button {
  color: #21324a;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
}

.site-nav button:hover,
.site-nav button:focus-visible { border-color: var(--accent); outline: none; }

.header-cta,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(169, 40, 114, 0.22);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 40px;
  align-items: center;
  padding: 74px 0 56px;
}

.hero-kicker,
.section-kicker,
.mini-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  letter-spacing: 0.24em;
  font-size: 0.82rem;
  text-transform: uppercase;
}

.hero-title {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.08em;
  font-size: clamp(3.2rem, 8vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.hero-title-line {
  display: block;
  width: fit-content;
  white-space: nowrap;
}

.hero-title-line:nth-child(2) { color: var(--accent); font-style: italic; }

.hero-summary {
  max-width: 650px;
  margin: 26px 0 0;
  font-size: 1.18rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.secondary-link {
  color: var(--accent);
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: 470px;
  border-radius: var(--radius-xl);
}

.visual-card {
  position: absolute;
  width: min(100%, 410px);
  padding: 28px;
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.visual-card--front {
  right: 14px;
  top: 48px;
  background: linear-gradient(180deg, rgba(48, 21, 42, 0.97), rgba(38, 28, 51, 0.94));
  color: #fff3f7;
  transform: rotate(4deg);
}

.visual-card--back {
  left: 10px;
  top: 110px;
  background: rgba(255, 241, 246, 0.86);
  border: 1px solid rgba(188, 20, 99, 0.18);
  color: var(--text);
  transform: rotate(-9deg);
}

.visual-label {
  margin: 0 0 16px;
  font-size: 0.8rem;
  letter-spacing: 0.24em;
  color: rgba(255, 243, 247, 0.82);
}

.visual-card h2 { margin: 0 0 12px; font-size: 2.3rem; line-height: 1; }
.visual-card p { margin: 8px 0; }

.guide-section,
.resource-section,
.disclaimer-section { padding: 46px 0; }

.section-head {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 2px 0 0;
  font-size: clamp(2rem, 4.8vw, 3.6rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.section-index {
  margin: 0;
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 0.9;
  color: rgba(185, 20, 99, 0.16);
  font-weight: 800;
}

.tab-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.tab-button {
  padding: 14px 22px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: rgba(255, 245, 247, 0.75);
  color: #2b1d29;
  font-weight: 700;
}

.tab-button.is-active {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: var(--shadow);
}

.tab-panel { display: grid; gap: 22px; }
.tab-panel[hidden] { display: none !important; }

.law-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  padding: 10px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(96, 82, 168, 0.18);
  box-shadow: 0 8px 18px rgba(116, 72, 141, 0.08);
  color: #4f4788;
  font-weight: 700;
}

.paper-block,
.soft-panel,
.formula-panel,
.calculator-panel,
.flow-card,
.resource-card,
.form-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-paper);
  box-shadow: var(--shadow);
}

.paper-block,
.formula-panel,
.calculator-panel,
.flow-card,
.resource-card,
.form-card { padding: 24px; }

.paper-block h3,
.formula-panel h3,
.calculator-head h3,
.form-card h3 { margin: 0 0 10px; font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.06; }
.paper-block p,
.formula-panel p,
.small-note,
.calc-message { margin: 0; color: var(--muted); }

.paper-block--readable {
  padding: 28px;
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.soft-panel { padding: 24px; }
.soft-panel--rose { background: rgba(255, 238, 243, 0.96); }
.soft-panel--sage { background: rgba(255, 239, 244, 0.98); }
.soft-panel--mint { background: rgba(255, 241, 246, 0.98); }
.soft-panel--blue { background: rgba(250, 241, 248, 0.98); }

.soft-panel h4 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.soft-panel--readable {
  padding: 28px;
}

.soft-panel--readable .mini-kicker {
  margin-bottom: 18px;
}

.mini-kicker--section {
  font-size: 0.98rem;
  letter-spacing: 0.2em;
}

.concept-card {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 248, 246, 0.92);
  border: 1px solid var(--line);
}

.concept-card--mint { background: rgba(255, 241, 246, 0.98); }

.concept-card h4 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.concept-card-title--emphasis {
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.number-list,
.plain-list,
.step-list { margin: 0; padding-left: 20px; color: var(--muted); }
.number-list li,
.plain-list li,
  .step-list li { margin-bottom: 10px; }

.detail-list,
.summary-list {
  padding-left: 0;
  list-style: none;
}

.detail-list li,
.summary-list li {
  margin-bottom: 14px;
  padding: 15px 16px 15px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(67, 35, 63, 0.08);
  line-height: 1.7;
}

.detail-list li:last-child,
.summary-list li:last-child {
  margin-bottom: 0;
}

.detail-list li {
  position: relative;
  padding-left: 34px;
}

.detail-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 23px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(122, 59, 196, 0.72);
}

.detail-list--numbered {
  counter-reset: detail-item;
}

.detail-list--numbered li {
  padding: 16px 18px 16px 58px;
}

.detail-list--numbered li::before {
  counter-increment: detail-item;
  content: counter(detail-item);
  left: 16px;
  top: 16px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(190, 20, 99, 0.22);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
 }

.detail-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-size: 1.03rem;
  line-height: 1.45;
}

.summary-list {
  counter-reset: summary-item;
}

.summary-list li {
  position: relative;
  padding-left: 56px;
}

.summary-list li::before {
  counter-increment: summary-item;
  content: counter(summary-item);
  position: absolute;
  left: 16px;
  top: 14px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(190, 20, 99, 0.22);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.soft-panel--readable .small-note {
  display: block;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(67, 35, 63, 0.08);
  line-height: 1.7;
}

.insight-list {
  padding-left: 0;
  list-style: none;
  counter-reset: insight-item;
}

.insight-list li {
  position: relative;
  margin-bottom: 14px;
  padding: 16px 18px 16px 58px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(67, 35, 63, 0.08);
  line-height: 1.75;
}

.insight-list li:last-child {
  margin-bottom: 0;
}

.insight-list li::before {
  counter-increment: insight-item;
  content: counter(insight-item);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(190, 20, 99, 0.24);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.insight-list strong {
  color: var(--text);
}

.branch-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.branch-list h4 { margin: 0 0 8px; font-size: 1.05rem; }
.branch-list p { margin: 0; }

.branch-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.branch-head p {
  color: var(--muted);
  font-size: 0.98rem;
}

.branch-stack {
  display: grid;
  gap: 18px;
}

.branch-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  align-items: start;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.branch-row:first-child {
  padding-top: 0;
  border-top: 0;
}

.branch-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
}

.branch-flag--good {
  background: rgba(107, 165, 45, 0.14);
  color: #4f7d18;
}

.branch-flag--bad {
  background: rgba(220, 93, 120, 0.14);
  color: #c14361;
}

.branch-body h4 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.branch-body p {
  margin: 0;
  color: var(--muted);
}

.branch-detail-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text);
}

.branch-detail-list li {
  margin-bottom: 12px;
}

.branch-detail-list strong {
  display: block;
}

.branch-detail-list span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.flow-track,
.flow-stack {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.flow-track span,
.flow-stack span {
  display: inline-flex;
  align-items: center;
  min-height: 54px;
  padding: 12px 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line-strong);
  font-weight: 700;
}

.flow-track .accent,
.flow-stack .accent {
  background: rgba(255, 239, 244, 0.95);
  border-color: rgba(190, 20, 99, 0.24);
  color: #8d2856;
}
.flow-track i,
.flow-stack i {
  display: inline-block;
  width: 24px;
  height: 2px;
  background: rgba(85, 67, 88, 0.35);
}

.flow-stack--muted { margin-top: 14px; }
.flow-stack--muted span { background: #fff4f6; border-color: rgba(220, 93, 120, 0.3); }

.calculator-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: start;
  margin-bottom: 18px;
}

.calculator-badge,
.tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.calculator-grid,
.result-grid,
.resource-grid,
.form-grid,
.disclaimer-grid {
  display: grid;
  gap: 18px;
}

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

.calculator-grid label span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.96rem;
  font-weight: 700;
}

.calculator-grid input {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid rgba(95, 56, 86, 0.18);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
}

.calc-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 18px 0; }

.calculator-panel--launch {
  display: grid;
  gap: 0;
}

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

.calculator-launch__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.calculator-launch__button {
  min-width: 220px;
}

.calculator-launch__note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.ghost-button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--accent);
  font-weight: 700;
}

.result-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.result-grid article {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
}

.result-grid span { display: block; color: var(--muted); font-size: 0.9rem; }
.result-grid strong { display: block; margin-top: 6px; font-size: 1.4rem; line-height: 1.1; }
.result-featured { background: linear-gradient(135deg, rgba(190, 20, 99, 0.1), rgba(122, 59, 196, 0.12)) !important; }

.formula-readout { margin: 18px 0 6px; font-weight: 700; }
.calc-message { font-size: 0.95rem; }

.table-wrap { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.compare-table th,
.compare-table td {
  padding: 16px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.compare-table th { font-size: 0.95rem; color: var(--muted); font-weight: 700; }

.resource-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.resource-card a { display: block; margin-top: 10px; font-weight: 700; color: #203459; }

.form-grid { grid-template-columns: 1.2fr 1fr 1fr 1fr; }
.form-card--featured {
  background: linear-gradient(135deg, rgba(255, 236, 242, 0.98), rgba(245, 232, 255, 0.98));
}
.form-card a { display: inline-flex; margin-top: 12px; font-weight: 700; color: var(--accent); }

.disclaimer-section {
  margin-top: 14px;
  padding: 34px;
  border-radius: var(--radius-xl);
  background: var(--bg-strong);
  color: #fff;
}

.section-head--light .section-kicker,
.section-head--light .section-index { color: rgba(255, 198, 220, 0.46); }

.disclaimer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.disclaimer-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 190px;
  padding: 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.disclaimer-grid h3 { margin: 0 0 8px; font-size: 1.1rem; }
.disclaimer-grid p { margin: 0; color: rgba(255, 236, 244, 0.82); line-height: 1.8; }

.calculator-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 24px;
}

.calculator-modal[hidden] {
  display: none !important;
}

.calculator-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(31, 18, 24, 0.46);
  backdrop-filter: blur(10px);
}

.calculator-modal__dialog {
  position: relative;
  width: min(980px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 26px;
  border-radius: 30px;
  background: rgba(255, 252, 249, 0.98);
  box-shadow: 0 34px 86px rgba(44, 33, 41, 0.22);
}

.calculator-modal__head {
  display: block;
  margin-bottom: 20px;
}

.calculator-modal__eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.calculator-modal__head h3 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.08;
}

.calculator-modal__summary {
  margin: 10px 0 0;
  color: var(--muted);
}

.calculator-modal__summary code {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(190, 20, 99, 0.08);
  color: #8d2856;
  font-family: inherit;
  font-weight: 700;
}

.calculator-modal__close {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  color: var(--accent);
  font-weight: 700;
  cursor: pointer;
}

.calculator-modal__intro {
  display: grid;
  gap: 16px;
}

.calculator-modal__intro-card {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 246, 248, 0.94);
  border: 1px solid rgba(190, 20, 99, 0.1);
}

.calculator-modal__intro-card--accent {
  background: linear-gradient(135deg, rgba(255, 239, 244, 0.98), rgba(247, 236, 250, 0.98));
}

.calculator-modal__intro-card h4 {
  margin: 0 0 10px;
  font-size: 1.28rem;
}

.calculator-modal__intro-card p {
  margin: 0;
  color: #274f86;
  line-height: 1.85;
  font-weight: 700;
}

.calculator-modal__intro-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.calculator-modal__notice {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: start;
  gap: 12px;
  padding: 20px 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(67, 35, 63, 0.12);
  cursor: pointer;
}

.calculator-modal__notice input {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.calculator-modal__notice span {
  color: var(--text);
  line-height: 1.85;
}

.calculator-modal__secondary {
  min-width: 166px;
  background: rgba(255, 255, 255, 0.9);
}

.calculator-modal__continue {
  min-width: 220px;
}

.calculator-modal__continue[disabled] {
  opacity: 0.45;
  box-shadow: none;
  cursor: not-allowed;
}

.calculator-modal .calculator-panel--modal {
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.calculator-modal__panel-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 16px;
}

@media (max-width: 1080px) {
  .hero,
  .grid-two,
  .branch-list,
  .calculator-grid,
  .result-grid,
  .resource-grid,
  .form-grid,
  .disclaimer-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual { min-height: 360px; }

  .calculator-modal__dialog {
    width: min(720px, calc(100vw - 24px));
  }
}

@media (max-width: 720px) {
  .page-shell { width: min(calc(100% - 20px), var(--container)); }
  .site-header { grid-template-columns: 1fr; border-radius: 28px; }
  .site-nav { justify-content: start; }
  .hero { padding-top: 44px; gap: 22px; }
  .section-head { grid-template-columns: 1fr; }
  .branch-row { grid-template-columns: 1fr; }
  .disclaimer-section { padding: 26px 18px; }
  .paper-block,
  .soft-panel,
  .formula-panel,
  .calculator-panel,
  .flow-card,
  .resource-card,
  .form-card { padding: 20px 18px; }
  .hero-title { font-size: clamp(2.8rem, 18vw, 4.2rem); }
  .calculator-launch__actions { align-items: stretch; }
  .calculator-launch__button { width: 100%; min-width: 0; }
  .calculator-modal { padding: 14px; }
  .calculator-modal__dialog {
    width: min(calc(100vw - 20px), 100%);
    max-height: calc(100vh - 20px);
    padding: 20px 18px;
    border-radius: 24px;
  }
  .calculator-modal__close { width: 100%; }
  .calculator-modal__intro-actions { justify-content: stretch; }
  .calculator-modal__intro-actions .primary-button { width: 100%; }
  .calculator-modal__intro-actions .ghost-button { width: 100%; }
  .calculator-modal__panel-actions { justify-content: stretch; }
  .calculator-modal__panel-actions .ghost-button { width: 100%; }
  .calculator-modal__notice { grid-template-columns: 1fr; }
}