:root {
  --bg: #f7f8f4;
  --surface: #ffffff;
  --ink: #1b1f24;
  --muted: #5f6873;
  --line: #d9ddd2;
  --green: #1f7a55;
  --green-dark: #15563e;
  --amber: #b66700;
  --steel: #35556f;
  --shadow: 0 18px 50px rgba(25, 34, 29, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family:
    Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 40px;
  border-bottom: 1px solid rgba(217, 221, 210, 0.85);
  background: rgba(247, 248, 244, 0.92);
  backdrop-filter: blur(14px);
}

.brand,
.nav,
.hero-actions,
.message-head,
.kakao-id,
.footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: var(--green-dark);
}

.nav {
  gap: 24px;
  color: var(--muted);
  font-size: 15px;
}

.nav a:hover,
.inline-link:hover {
  color: var(--green-dark);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta {
  padding: 0 16px;
  color: white;
  background: var(--ink);
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding-top: 56px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
.hero-text,
.note,
.kakao-body,
.kakao-meta,
.hero-alert-item p,
.text-stack p,
.example-copy p,
.final-cta p,
.pricing-row p {
  word-break: keep-all;
  overflow-wrap: normal;
  line-break: strict;
}

.no-wrap {
  white-space: nowrap;
}

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.35;
}

.hero-text {
  max-width: 690px;
  color: var(--muted);
  font-size: 19px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fbfcfa;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  padding: 0 20px;
}

.button.primary {
  color: white;
  background: var(--green-dark);
}

.button.secondary {
  border: 1px solid var(--line);
  background: var(--surface);
}

.note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}

.message {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel-top,
.spend-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.panel-top {
  color: var(--muted);
  font-size: 14px;
}

.panel-top strong {
  color: var(--amber);
}

.panel-summary {
  margin: 16px 0 0;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
}

.spend-row {
  margin: 18px 0 18px;
  font-size: 20px;
}

.spend-row strong {
  color: var(--amber);
}

.bar-chart {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  gap: 12px;
  height: 190px;
  padding: 18px;
  border-radius: 8px;
  background: #eef2e9;
}

.bar-chart span {
  display: block;
  min-height: 34px;
  border-radius: 6px 6px 0 0;
  background: var(--steel);
}

.bar-chart .alert {
  background: var(--amber);
}

.hero-panel p {
  margin: 18px 0 0;
  color: var(--muted);
}

.split,
.signal-section,
.example,
.trust,
.pricing {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  border-top: 1px solid var(--line);
}

.text-stack p,
.example-copy p,
.final-cta p {
  color: var(--muted);
  font-size: 18px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.steps div {
  padding-top: 20px;
  border-top: 3px solid var(--line);
}

.steps span {
  color: var(--green-dark);
  font-weight: 800;
}

.steps p,
.signal-list span,
.audience-grid p,
.faq p {
  color: var(--muted);
}

.signal-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.signal-list li {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.message {
  padding: 28px;
}

.message-title {
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.35;
}

.kakao-message {
  padding: 0;
  overflow: hidden;
  background: #fffdf0;
  border-color: rgba(179, 153, 0, 0.22);
}

.hero-message {
  align-self: stretch;
}

.hero-message .kakao-bubble {
  margin: 18px;
  min-height: 0;
}

.hero-message .message-title {
  font-size: 20px;
}

.hero-alert-list {
  display: grid;
  gap: 10px;
  margin: 0 18px 16px;
}

.hero-alert-item {
  padding: 14px 16px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(179, 153, 0, 0.14);
}

.hero-alert-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}

.hero-alert-item span {
  display: inline-block;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 800;
}

.hero-alert-item p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.hero-chart {
  margin: 0 18px 16px;
  padding: 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(179, 153, 0, 0.16);
}

.hero-chart-head,
.hero-chart-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.hero-chart-head {
  align-items: baseline;
  margin-bottom: 12px;
}

.hero-chart-head span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.hero-chart-head strong {
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
}

.hero-chart-bars {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: end;
  gap: 8px;
  height: 96px;
  margin-bottom: 10px;
}

.hero-chart-bars span {
  display: block;
  min-height: 12px;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, #f3c400 0%, #dca400 100%);
}

.hero-chart-bars .alert {
  background: linear-gradient(180deg, #ffb100 0%, #ff8900 100%);
}

.hero-chart-foot {
  color: var(--muted);
  font-size: 12px;
}

.kakao-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: linear-gradient(180deg, #ffe84d 0%, #ffd900 100%);
  color: #111;
}

.kakao-id {
  gap: 10px;
}

.kakao-id strong {
  display: block;
  font-size: 15px;
  line-height: 1.25;
}

.kakao-id span,
.kakao-top time {
  font-size: 12px;
  color: rgba(17, 17, 17, 0.75);
}

.kakao-avatar {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: #111;
  color: #ffe84d;
  font-weight: 900;
}

.kakao-bubble {
  margin: 18px;
  padding: 18px;
  border-radius: 16px 16px 16px 6px;
  background: #ffffff;
  border: 1px solid rgba(179, 153, 0, 0.18);
  box-shadow: 0 8px 20px rgba(25, 34, 29, 0.06);
}

.kakao-body {
  margin-top: 10px;
  color: var(--muted);
}

.kakao-meta {
  margin-top: 14px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
}

.kakao-message .inline-link {
  margin: 0 18px 18px;
}

.inline-link {
  display: inline-flex;
  margin-top: 12px;
  color: var(--green-dark);
  font-weight: 800;
}

.audience {
  border-top: 1px solid var(--line);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 34px;
}

.audience-grid p {
  margin: 0;
  padding: 22px 0;
  border-top: 3px solid var(--line);
  font-size: 17px;
}

.pricing-panel {
  border-top: 1px solid var(--line);
}

.pricing-row {
  display: grid;
  grid-template-columns: 180px 160px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.pricing-row strong {
  font-size: 18px;
}

.pricing-row span {
  color: var(--green-dark);
  font-weight: 800;
}

.pricing-row p {
  margin: 0;
  color: var(--muted);
}

.faq {
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  padding: 22px 0;
  font-size: 18px;
  font-weight: 800;
}

details p {
  margin-bottom: 24px;
}

.final-cta {
  width: 100%;
  max-width: none;
  padding: 76px max(20px, calc((100vw - 1120px) / 2));
  color: white;
  background: var(--ink);
}

.final-cta .eyebrow,
.final-cta p {
  color: #dfe7d9;
}

.final-cta h2 {
  max-width: 860px;
}

.final-cta .button {
  margin-top: 12px;
  background: #e9f4df;
  color: var(--green-dark);
}

.final-note {
  margin-top: 0;
  margin-bottom: 8px;
  color: #dfe7d9;
  font-size: 15px;
}

.footer {
  justify-content: space-between;
  gap: 20px;
  padding: 28px 40px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 860px) {
  .site-header {
    padding: 0 20px;
  }

  .nav {
    display: none;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 12px;
    font-size: 14px;
  }

  .section {
    width: min(100% - 32px, 620px);
    padding: 58px 0;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 34px;
    min-height: auto;
    padding-top: 48px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-text,
  .text-stack p,
  .example-copy p,
  .final-cta p {
    font-size: 17px;
  }

  .hero-points {
    margin-top: 20px;
  }

  .hero-panel,
  .message {
    padding: 20px;
  }

  .hero-message {
    padding: 0;
  }

  .split,
  .signal-section,
  .example,
  .trust,
  .pricing,
  .steps,
  .audience-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .signal-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .pricing-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .kakao-top {
    align-items: flex-start;
    flex-direction: column;
  }

  .final-cta {
    width: 100%;
    padding: 58px 16px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px 20px;
  }
}

@media (max-width: 430px) {
  .brand span:last-child {
    display: none;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 27px;
  }

  .hero-points li {
    width: 100%;
    justify-content: center;
  }

  .hero-message .message-title {
    font-size: 18px;
  }

  .hero-alert-list {
    margin: 0 14px 14px;
  }

  .hero-alert-item {
    padding: 12px 14px;
  }

  .hero-chart {
    margin: 0 14px 14px;
    padding: 14px;
  }

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