:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --line-strong: #cfd6e2;
  --surface: #f8fafc;
  --accent: #1457d9;
  --accent-soft: #eef4ff;
  --success: #067647;
  --shadow: 0 16px 42px rgba(15, 23, 42, 0.07);
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  letter-spacing: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: 12px clamp(16px, 4vw, 44px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  word-break: keep-all;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px) 72px;
}

.hero {
  padding: 54px 0 28px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 820px;
  margin: 0 0 16px;
  font-size: clamp(2rem, 6vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: 0;
  word-break: keep-all;
}

.hero-lead {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  word-break: keep-all;
}

.notice,
.explain-box,
.decision-frame {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.notice strong,
.explain-box strong,
.decision-frame > strong {
  display: block;
  margin-bottom: 6px;
}

.notice p,
.explain-box p,
.decision-frame > p {
  margin: 0;
  color: var(--muted);
  word-break: keep-all;
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.decision-grid article {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.decision-grid span {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 900;
}

.decision-grid strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.35;
  word-break: keep-all;
}

.decision-grid p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  word-break: keep-all;
}

.tool-tabs {
  position: sticky;
  top: 64px;
  z-index: 25;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 14px 0;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.tab-button {
  min-height: 50px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font-weight: 800;
}

.tab-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.tool-panel {
  display: none;
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.tool-panel.active {
  display: block;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.panel-head h2 {
  margin: 0;
  font-size: clamp(1.55rem, 4vw, 2.45rem);
  line-height: 1.18;
  word-break: keep-all;
}

.panel-head p:not(.eyebrow) {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--muted);
  word-break: keep-all;
}

.simple-form {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 1fr;
  gap: 14px;
  align-items: end;
}

.simple-form.two {
  grid-template-columns: 1.2fr 0.8fr;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
}

input,
select {
  min-height: 52px;
  padding: 0 14px;
  font-size: 1.05rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid var(--accent-soft);
  border-color: var(--accent);
}

.money-input,
.percent-input {
  position: relative;
}

.money-input input,
.percent-input input {
  padding-right: 52px;
  font-weight: 800;
}

.money-input em,
.percent-input em {
  position: absolute;
  top: 50%;
  right: 14px;
  transform: translateY(-50%);
  color: var(--muted);
  font-style: normal;
  font-weight: 700;
}

.quick-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.quick-buttons button {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font-weight: 800;
}

.quick-buttons button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.industry-buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}

.industry-buttons button {
  min-height: 58px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  text-align: left;
}

.industry-buttons button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.industry-buttons span,
.industry-buttons small {
  display: block;
}

.industry-buttons span {
  font-weight: 900;
}

.industry-buttons small {
  margin-top: 2px;
  color: inherit;
  opacity: 0.72;
  font-weight: 800;
}

.comparison-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.compare-card,
.macro-card,
.assumption-card,
.industry-detail,
.copy-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.compare-card {
  padding: 20px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.card-kicker {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.compare-card h3,
.macro-card h3,
.assumption-card h3 {
  margin: 4px 0 0;
  font-size: 1.35rem;
}

.plain-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.big-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 18px 0 0;
}

.big-stats div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.big-stats dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.big-stats dd {
  margin: 6px 0 0;
  font-size: 1.08rem;
  font-weight: 900;
}

.plain-note {
  margin: 14px 0 0;
  color: var(--muted);
  word-break: keep-all;
}

.lesson-note {
  margin: 8px 0 0;
  color: var(--accent);
  font-weight: 850;
  word-break: keep-all;
}

.data-note {
  margin: 8px 0 0;
  color: #475467;
  font-size: 0.88rem;
  font-weight: 750;
  word-break: keep-all;
}

.industry-detail {
  padding: 22px;
}

.industry-question {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 900;
  word-break: keep-all;
}

.industry-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.industry-layout section,
.holdings-box {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.industry-layout h4,
.holdings-box h4 {
  margin: 0 0 8px;
}

.industry-layout p,
.holdings-box p {
  margin: 0;
  color: var(--muted);
  word-break: keep-all;
}

.holdings-box {
  margin-top: 16px;
}

.holding-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.holding-list span {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  font-weight: 800;
}

.source-link {
  display: inline-flex;
  margin-top: 14px;
  font-weight: 900;
}

.quiz-grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.quiz-card {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.quiz-card legend {
  padding: 0;
  font-weight: 900;
  word-break: keep-all;
}

.quiz-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.quiz-options button {
  min-height: 94px;
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  text-align: left;
}

.quiz-options button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.quiz-options strong,
.quiz-options span {
  display: block;
  word-break: keep-all;
}

.quiz-options strong {
  font-size: 1rem;
}

.quiz-options span {
  margin-top: 6px;
  color: inherit;
  opacity: 0.78;
  font-size: 0.9rem;
}

.result-summary {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.result-summary > strong {
  display: block;
  margin-bottom: 6px;
}

.result-summary p {
  margin: 0;
  color: var(--muted);
  word-break: keep-all;
}

.answer-tags,
.match-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.answer-tags {
  margin-top: 12px;
}

.answer-tags span,
.match-tags span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 850;
}

.tenbagger-groups {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.tenbagger-group h3 {
  margin: 0 0 10px;
}

.tenbagger-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tenbagger-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.tenbagger-card h4 {
  margin: 4px 0 0;
  font-size: 1.22rem;
  word-break: keep-all;
}

.tenbagger-card .card-top p {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 800;
}

.tenbagger-thesis {
  margin: 14px 0 12px;
  color: var(--text);
  font-weight: 800;
  word-break: keep-all;
}

.tenbagger-card h5 {
  margin: 14px 0 8px;
  font-size: 0.98rem;
}

.tenbagger-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.tenbagger-card li {
  margin-top: 7px;
  word-break: keep-all;
}

.risk-note {
  margin: 12px 0 0;
  color: var(--muted);
  word-break: keep-all;
}

.assumption-box {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.assumption-box summary {
  cursor: pointer;
  font-weight: 900;
}

.assumption-box p {
  color: var(--muted);
}

.assumption-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.assumption-card {
  padding: 16px;
}

.assumption-card label {
  margin-top: 12px;
}

.assumption-card input {
  min-height: 44px;
}

.assumption-card a,
.macro-card a {
  display: inline-flex;
  margin-top: 12px;
  font-weight: 800;
}

.copy-box {
  margin-top: 18px;
  padding: 18px;
  background: var(--surface);
}

.copy-box h3 {
  margin: 0 0 10px;
}

.copy-box textarea {
  min-height: 190px;
  padding: 14px;
  resize: vertical;
  line-height: 1.6;
}

.primary-button {
  min-height: 46px;
  margin-top: 10px;
  padding: 0 18px;
  border: 0;
  border-radius: var(--radius);
  background: var(--text);
  color: #fff;
  font-weight: 900;
}

.copy-status {
  margin-left: 10px;
  color: var(--success);
  font-weight: 800;
}

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

.macro-card {
  padding: 20px;
}

.macro-value {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 12px 0;
}

.macro-value strong {
  font-size: 1.8rem;
}

.macro-value span,
.macro-card p {
  color: var(--muted);
}

.macro-card ol {
  margin: 12px 0 0;
  padding-left: 20px;
}

.macro-card li {
  margin-top: 8px;
}

.footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px clamp(16px, 4vw, 40px) 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer p {
  margin: 6px 0;
}

@media (max-width: 840px) {
  .topbar {
    position: static;
  }

  .tool-tabs {
    top: 0;
  }

  .simple-form,
  .simple-form.two,
  .big-stats,
  .decision-grid,
  .industry-buttons,
  .industry-layout,
  .assumption-grid,
  .macro-grid,
  .quiz-options,
  .tenbagger-list {
    grid-template-columns: 1fr;
  }

  .tool-panel {
    padding: 20px;
  }

  .card-top {
    display: block;
  }

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

@media (max-width: 520px) {
  main {
    padding-left: 14px;
    padding-right: 14px;
  }

  .hero {
    padding-top: 36px;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .tool-tabs {
    gap: 6px;
  }

  .tab-button {
    min-height: 48px;
    padding: 6px;
    font-size: 0.92rem;
  }

  input,
  select {
    font-size: 1rem;
  }
}