:root {
  --bg: #f5f6f4;
  --surface: #ffffff;
  --ink: #171a1f;
  --muted: #5f6673;
  --line: #dde2e6;
  --soft-line: #ebeeee;
  --green: #1f8a57;
  --green-soft: #e7f5ed;
  --red: #c33a32;
  --red-soft: #fdebea;
  --amber: #a76510;
  --amber-soft: #fff1d8;
  --blue: #2563a6;
  --blue-soft: #eaf2fb;
  --shadow: 0 18px 48px rgba(28, 35, 43, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(245, 246, 244, 0.9);
  border-bottom: 1px solid rgba(221, 226, 230, 0.82);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 820;
}

.brand-mark {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  color: var(--green);
}

.brand-paper {
  fill: currentColor;
}

.brand-fold {
  fill: #f2f7f0;
}

.brand-dot {
  stroke: none;
}

.dot-quiet {
  fill: rgba(255, 255, 255, 0.88);
}

.dot-focus {
  fill: var(--amber);
}

.brand-line {
  fill: none;
  stroke: rgba(255, 255, 255, 0.9);
  stroke-linecap: round;
  stroke-width: 1.8;
}

.header-cta {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  font-size: 13px;
  font-weight: 700;
}

.hero {
  display: grid;
  gap: 28px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 54px 18px 42px;
}

.eyebrow {
  display: block;
  margin-bottom: 12px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(36px, 9vw, 72px);
  line-height: 1.04;
  font-weight: 860;
}

.lead {
  max-width: 560px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.62;
}

.cta-row {
  margin-top: 26px;
}

.primary-button,
.submit-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
}

.primary-button {
  width: min(100%, 360px);
  padding: 0 20px;
}

.helper-copy {
  max-width: 520px;
  margin-top: 14px;
  color: #747b86;
  font-size: 13px;
  line-height: 1.6;
}

.workflow-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  box-shadow: var(--shadow);
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.source-card,
.report-card,
.problem-grid article,
.validation-list div,
.intake-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.source-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 86px;
  padding: 12px;
}

.channel-logo {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  min-height: 28px;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.cafe24-logo {
  color: #1b4cff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.smartstore-logo {
  gap: 6px;
  color: #1c242f;
  font-size: 13px;
  letter-spacing: -0.03em;
}

.naver-box {
  display: inline-flex;
  width: 20px;
  height: 20px;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: #03c75a;
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 900;
}

.coupang-logo {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.cp-red {
  color: #e5231e;
}

.cp-orange {
  color: #f37021;
}

.cp-yellow {
  color: #f7b718;
}

.cp-green {
  color: #69bd45;
}

.cp-blue {
  color: #1d75bc;
}

.cp-navy {
  color: #21409a;
}

.source-card small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
}

.merge-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  height: 30px;
}

.merge-line span {
  position: relative;
}

.merge-line span::after {
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 30px;
  background: var(--line);
  content: "";
}

.report-card {
  padding: 18px;
}

.report-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--soft-line);
}

.report-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.report-head h2 {
  margin-top: 5px;
  font-size: 25px;
  line-height: 1.15;
}

.date-chip {
  flex: 0 0 auto;
  padding: 7px 9px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.alert-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.alert-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--soft-line);
  border-radius: 8px;
}

.alert-rank {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #f1f3f2;
  font-size: 12px;
  font-weight: 820;
}

.alert-item strong {
  display: block;
  font-size: 14px;
}

.alert-item p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.signal {
  padding: 6px 8px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 850;
}

.danger {
  background: var(--red-soft);
  color: var(--red);
}

.warning {
  background: var(--amber-soft);
  color: var(--amber);
}

.info {
  background: var(--blue-soft);
  color: var(--blue);
}

.problem-band,
.sample-section,
.form-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 18px;
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.form-copy h2 {
  font-size: clamp(28px, 6vw, 44px);
  line-height: 1.14;
  font-weight: 840;
}

.section-heading p,
.form-copy p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.problem-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.problem-grid article {
  padding: 18px;
}

.problem-grid strong {
  font-size: 16px;
}

.problem-grid p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.validation-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.validation-list div {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 16px;
  font-size: 15px;
  font-weight: 700;
}

.validation-list span {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.form-section {
  display: grid;
  gap: 24px;
  padding-bottom: 72px;
}

.intake-form {
  display: grid;
  gap: 18px;
  padding: 18px;
}

fieldset {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  border: 0;
}

legend,
.field span {
  margin-bottom: 8px;
  color: #2f3540;
  font-size: 14px;
  font-weight: 800;
}

fieldset label,
.interview-check,
.privacy-consent {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 34px;
  color: #2d333b;
  font-size: 14px;
}

.privacy-box {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.privacy-consent {
  align-items: flex-start;
  min-height: auto;
  font-weight: 750;
}

.privacy-consent input {
  margin-top: 2px;
  flex: 0 0 auto;
}

.privacy-detail {
  display: grid;
  gap: 8px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.privacy-detail div {
  display: grid;
  gap: 3px;
}

.privacy-detail dt {
  color: #2f3540;
  font-weight: 800;
}

.privacy-detail dd {
  margin: 0;
}

.privacy-box p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.privacy-box a {
  color: var(--green);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  color: var(--ink);
  font: inherit;
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
}

select,
input[type="text"] {
  height: 48px;
  padding: 0 12px;
}

textarea {
  min-height: 112px;
  padding: 12px;
  resize: vertical;
}

.field {
  display: grid;
}

.submit-button {
  width: 100%;
  margin-top: 4px;
}

.form-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.success-message {
  padding: 14px;
  border: 1px solid #b7dcc8;
  border-radius: 8px;
  background: var(--green-soft);
  color: #145f3b;
  font-size: 14px;
  line-height: 1.55;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 520px) {
  .site-header {
    padding: 18px 24px;
  }

  .brand {
    font-size: 16px;
  }

  .brand-mark {
    width: 25px;
    height: 25px;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 18px;
    font-size: 14px;
  }

  .hero {
    gap: 24px;
    padding: 48px 24px 36px;
  }

  .eyebrow {
    max-width: 310px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.45;
  }

  h1 {
    max-width: 350px;
    font-size: 42px;
    line-height: 1.08;
  }

  .lead {
    max-width: 330px;
    margin-top: 20px;
    font-size: 20px;
    line-height: 1.58;
  }

  .cta-row {
    margin-top: 26px;
  }

  .helper-copy {
    max-width: 330px;
    margin-top: 18px;
    font-size: 14px;
    line-height: 1.75;
  }
}

@media (min-width: 840px) {
  .site-header {
    padding: 16px 32px;
  }

  .hero {
    grid-template-columns: 0.92fr 1.08fr;
    align-items: center;
    padding: 74px 32px 56px;
  }

  .workflow-card {
    padding: 18px;
  }

  .problem-band,
  .sample-section,
  .form-section {
    padding-right: 32px;
    padding-left: 32px;
  }

  .problem-grid,
  .validation-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .validation-list {
    grid-template-columns: repeat(4, 1fr);
  }

  .validation-list div {
    align-items: start;
    flex-direction: column;
  }

  .form-section {
    grid-template-columns: 0.78fr 1fr;
    align-items: start;
  }
}