@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/pretendard.css');

:root {
  --black: #09090b;
  --white: #ffffff;
  --zinc-50: #fafafa;
  --zinc-100: #f4f4f5;
  --zinc-200: #e4e4e7;
  --zinc-400: #a1a1aa;
  --zinc-500: #71717a;
  --zinc-700: #3f3f46;
  --success: #047857;
  --success-bg: #ecfdf5;
  --warning: #b45309;
  --warning-bg: #fffbeb;
  --danger: #b91c1c;
  --max-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font-family: 'Pretendard', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input {
  font: inherit;
}

a {
  color: inherit;
}

button,
input {
  border-radius: 2px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  background: var(--black);
  color: var(--white);
  padding: 12px 16px;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--black);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--black);
  text-decoration: none;
}

.brand__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: var(--black);
  color: var(--white);
  font-weight: 800;
}

.brand__kicker,
.eyebrow {
  margin: 0;
  color: var(--zinc-500);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

.brand__kicker {
  display: block;
}

.brand__name {
  display: block;
  margin: 1px 0 0;
  font-size: 16px;
  font-weight: 750;
}

.header-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--black);
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.header-link:hover {
  background: var(--black);
  color: var(--white);
}

.hero {
  border-bottom: 1px solid var(--black);
}

.hero--home {
  padding: 96px 0 76px;
}

.hero--landing {
  padding: 64px 0;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.72fr);
  gap: 64px;
  align-items: center;
}

.hero__title {
  max-width: 900px;
  margin: 18px 0 0;
  font-size: clamp(42px, 6.5vw, 78px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 1.05;
  text-wrap: balance;
}

.hero--landing .hero__title {
  font-size: clamp(38px, 5.2vw, 68px);
}

.hero__description {
  max-width: 730px;
  margin: 24px 0 0;
  color: var(--zinc-700);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.75;
}

.hero__actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--black);
  padding: 11px 18px;
  background: var(--white);
  color: var(--black);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  background: var(--black);
  color: var(--white);
}

.button:active {
  transform: translateY(1px);
}

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

.button--primary:hover {
  background: var(--zinc-700);
}

.button--wide {
  width: 100%;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--black);
  padding: 5px 9px;
  background: var(--white);
  font-size: 12px;
  font-weight: 750;
  line-height: 1;
}

.badge--success {
  border-color: #a7f3d0;
  background: var(--success-bg);
  color: var(--success);
}

.badge--warning {
  border-color: #fde68a;
  background: var(--warning-bg);
  color: var(--warning);
}

.section {
  padding: 80px 0;
}

.section--compact {
  padding: 56px 0;
}

.section--tint {
  border-block: 1px solid var(--black);
  background: var(--zinc-50);
}

.section--black {
  background: var(--black);
  color: var(--white);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 32px;
}

.section-title {
  max-width: 780px;
  margin: 10px 0 0;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  text-wrap: balance;
}

.section-description {
  max-width: 620px;
  margin: 14px 0 0;
  color: var(--zinc-700);
  font-size: 16px;
  line-height: 1.75;
}

.section--black .eyebrow,
.section--black .section-description {
  color: var(--zinc-400);
}

.stat-strip {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--black);
}

.stat {
  padding: 22px;
  border-right: 1px solid var(--black);
}

.stat:last-child {
  border-right: 0;
}

.stat__label {
  margin: 0;
  color: var(--zinc-500);
  font-size: 12px;
}

.stat__value {
  margin: 8px 0 0;
  font-size: 24px;
  font-weight: 800;
}

.idea-list {
  border: 1px solid var(--black);
}

.idea-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 250px;
  color: var(--black);
  text-decoration: none;
  transition: background 160ms ease;
}

.idea-card + .idea-card {
  border-top: 1px solid var(--black);
}

.idea-card:hover {
  background: var(--zinc-50);
}

.idea-card__score {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--black);
  padding: 24px;
  background: var(--black);
  color: var(--white);
}

.idea-card__score strong {
  display: block;
  margin-top: 10px;
  font-size: 58px;
  line-height: 1;
}

.idea-card__score small {
  color: var(--zinc-400);
}

.idea-card__content,
.idea-card__aside {
  padding: 28px;
}

.idea-card__content {
  border-right: 1px solid var(--black);
}

.idea-card__title {
  margin: 18px 0 0;
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.idea-card__description {
  margin: 14px 0 0;
  color: var(--zinc-700);
  font-size: 15px;
  line-height: 1.7;
}

.idea-card__aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
}

.idea-card__target-label {
  margin: 0;
  color: var(--zinc-500);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.idea-card__target {
  margin: 9px 0 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.idea-card__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--black);
  padding-top: 16px;
  font-size: 14px;
  font-weight: 800;
}

.idea-card__link span:last-child {
  transition: transform 160ms ease;
}

.idea-card:hover .idea-card__link span:last-child {
  transform: translateX(4px);
}

.waitlist-card {
  border: 1px solid var(--black);
  background: var(--white);
}

.score-panel {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--black);
  padding: 28px;
  background: var(--black);
  color: var(--white);
}

.score-panel .eyebrow {
  color: var(--zinc-400);
}

.score-panel__number {
  margin: 22px 0 0;
  font-size: clamp(72px, 10vw, 112px);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.score-panel__unit {
  margin: 10px 0 0;
  color: var(--zinc-400);
  font-size: 14px;
}

.score-panel__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--zinc-700);
}

.score-panel__meta div {
  padding-top: 18px;
}

.score-panel__meta div + div {
  border-left: 1px solid var(--zinc-700);
  padding-left: 18px;
}

.score-panel__meta dt {
  color: var(--zinc-400);
  font-size: 11px;
}

.score-panel__meta dd {
  margin: 6px 0 0;
  font-size: 15px;
  font-weight: 800;
}

.score-breakdown {
  border-block: 1px solid var(--black);
}

.score-row {
  display: grid;
  grid-template-columns: 210px 100px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: 20px 0;
}

.score-row + .score-row {
  border-top: 1px solid var(--black);
}

.score-row__label {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
}

.score-row__value {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}

.score-row__reason {
  margin: 0;
  color: var(--zinc-700);
  font-size: 13px;
  line-height: 1.65;
}

.waitlist-card__header {
  border-bottom: 1px solid var(--black);
  padding: 20px 22px;
}

.waitlist-card__title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}

.waitlist-card__description {
  margin: 8px 0 0;
  color: var(--zinc-700);
  font-size: 14px;
  line-height: 1.6;
}

.waitlist-form {
  padding: 22px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 750;
}

.form-input {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--black);
  padding: 12px 14px;
  background: var(--white);
  color: var(--black);
  font-size: 16px;
}

.form-input::placeholder {
  color: var(--zinc-400);
}

.form-input:focus {
  outline: 2px solid rgba(9, 9, 11, 0.16);
  outline-offset: 0;
}

.form-consent {
  margin: 14px 0 18px;
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 9px;
  align-items: start;
  color: var(--zinc-700);
  font-size: 12px;
  line-height: 1.55;
}

.form-consent input {
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: var(--black);
}

.form-consent a {
  font-weight: 750;
  text-underline-offset: 3px;
}

.form-hint {
  margin: 12px 0 0;
  color: var(--zinc-500);
  font-size: 11px;
  line-height: 1.55;
  text-align: center;
}

.form-status {
  min-height: 20px;
  margin: 12px 0 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.form-status[data-state='success'] {
  color: var(--success);
}

.form-status[data-state='error'] {
  color: var(--danger);
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.problem-grid,
.feature-grid,
.proof-grid,
.audience-grid {
  display: grid;
  gap: 0;
  border: 1px solid var(--black);
}

.problem-grid {
  grid-template-columns: 0.9fr 1.1fr;
}

.feature-grid,
.proof-grid {
  grid-template-columns: repeat(3, 1fr);
}

.audience-grid {
  grid-template-columns: 1fr 1fr;
}

.problem-panel,
.feature-card,
.proof-card,
.audience-card {
  padding: 28px;
}

.problem-panel + .problem-panel,
.feature-card + .feature-card,
.proof-card + .proof-card,
.audience-card + .audience-card {
  border-left: 1px solid var(--black);
}

.problem-panel--dark {
  background: var(--black);
  color: var(--white);
}

.card-number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--black);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}

.feature-card__title,
.proof-card__value,
.audience-card__title {
  margin: 18px 0 0;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}

.feature-card__description,
.proof-card__description,
.audience-card__description,
.problem-panel__description {
  margin: 10px 0 0;
  color: var(--zinc-700);
  font-size: 14px;
  line-height: 1.75;
}

.problem-panel--dark .problem-panel__description {
  color: var(--zinc-400);
}

.tool-list {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-chip {
  border: 1px solid var(--zinc-400);
  padding: 7px 10px;
  background: var(--white);
  color: var(--black);
  font-size: 12px;
  font-weight: 700;
}

.product-preview {
  display: grid;
  grid-template-columns: 210px 1fr;
  border: 1px solid var(--black);
  background: var(--white);
}

.product-preview__sidebar {
  border-right: 1px solid var(--black);
  padding: 20px;
  background: var(--zinc-50);
}

.product-preview__brand {
  margin: 0 0 24px;
  font-size: 15px;
  font-weight: 800;
}

.preview-nav {
  display: grid;
  gap: 8px;
}

.preview-nav span {
  display: block;
  border: 1px solid var(--zinc-200);
  padding: 9px 10px;
  color: var(--zinc-500);
  font-size: 12px;
}

.preview-nav span:first-child {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
}

.product-preview__content {
  padding: 24px;
}

.preview-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
}

.preview-list {
  margin-top: 20px;
  border: 1px solid var(--black);
}

.preview-row {
  display: grid;
  grid-template-columns: 1fr 130px 90px;
  gap: 16px;
  align-items: center;
  padding: 14px;
  font-size: 12px;
}

.preview-row + .preview-row {
  border-top: 1px solid var(--black);
}

.status {
  display: inline-flex;
  justify-content: center;
  border: 1px solid var(--black);
  padding: 5px 8px;
  font-size: 11px;
  font-weight: 750;
}

.status--done {
  border-color: #a7f3d0;
  background: var(--success-bg);
  color: var(--success);
}

.status--waiting {
  border-color: #fde68a;
  background: var(--warning-bg);
  color: var(--warning);
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--black);
}

.flow__item {
  min-height: 150px;
  position: relative;
  padding: 22px;
  border-right: 1px solid var(--black);
}

.flow__item:last-child {
  border-right: 0;
}

.flow__number {
  color: var(--zinc-500);
  font-size: 11px;
  font-weight: 800;
}

.flow__title {
  margin: 22px 0 0;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.5;
}

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

.faq-item {
  border-bottom: 1px solid var(--black);
}

.faq-item summary {
  position: relative;
  padding: 22px 48px 22px 0;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.5;
  list-style: none;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 8px;
  top: 19px;
  font-size: 22px;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  max-width: 800px;
  margin: -6px 0 22px;
  color: var(--zinc-700);
  font-size: 14px;
  line-height: 1.75;
}

.bottom-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  gap: 56px;
  align-items: center;
}

.bottom-cta .waitlist-card {
  color: var(--black);
}

.site-footer {
  border-top: 1px solid var(--black);
  padding: 34px 0;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--zinc-500);
  font-size: 12px;
}

.site-footer a {
  font-weight: 700;
  text-underline-offset: 3px;
}

.legal-hero {
  border-bottom: 1px solid var(--black);
  padding: 72px 0 56px;
}

.legal-hero__title {
  margin: 14px 0 0;
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.legal-hero__description {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--zinc-700);
  font-size: 16px;
  line-height: 1.75;
}

.legal-document {
  width: min(100%, 860px);
}

.legal-section {
  padding: 36px 0;
}

.legal-section:first-child {
  padding-top: 0;
}

.legal-section + .legal-section {
  border-top: 1px solid var(--black);
}

.legal-section h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.4;
}

.legal-section h3 {
  margin: 24px 0 0;
  font-size: 16px;
  font-weight: 800;
}

.legal-section p,
.legal-section li {
  color: var(--zinc-700);
  font-size: 14px;
  line-height: 1.8;
}

.legal-section ul {
  margin: 14px 0 0;
  padding-left: 22px;
}

.legal-list {
  margin: 20px 0 0;
  border: 1px solid var(--black);
}

.legal-list div {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
}

.legal-list div + div {
  border-top: 1px solid var(--black);
}

.legal-list dt,
.legal-list dd {
  margin: 0;
  padding: 16px;
  font-size: 13px;
  line-height: 1.7;
}

.legal-list dt {
  background: var(--zinc-50);
  font-weight: 800;
}

.legal-list dd {
  border-left: 1px solid var(--black);
  color: var(--zinc-700);
}

.legal-callout {
  margin-top: 20px;
  border: 1px solid var(--black);
  padding: 18px;
  background: var(--zinc-50);
  color: var(--zinc-700);
  font-size: 13px;
  line-height: 1.75;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media (max-width: 900px) {
  .hero__grid,
  .bottom-cta {
    grid-template-columns: 1fr;
  }

  .idea-card {
    grid-template-columns: 150px minmax(0, 1fr);
  }

  .idea-card__aside {
    grid-column: 1 / -1;
    border-top: 1px solid var(--black);
  }

  .idea-card__content {
    border-right: 0;
  }

  .feature-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .feature-card + .feature-card,
  .proof-card + .proof-card {
    border-top: 1px solid var(--black);
    border-left: 0;
  }

  .flow {
    grid-template-columns: 1fr 1fr;
  }

  .flow__item {
    border-bottom: 1px solid var(--black);
  }

  .flow__item:nth-child(2n) {
    border-right: 0;
  }

  .flow__item:last-child {
    grid-column: 1 / -1;
    border-bottom: 0;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .site-header__inner {
    min-height: 60px;
  }

  .brand__kicker,
  .header-link span:first-child {
    display: none;
  }

  .header-link {
    width: 42px;
    padding: 8px;
  }

  .hero--home,
  .hero--landing,
  .section,
  .section--compact {
    padding: 52px 0;
  }

  .hero__title {
    font-size: 41px;
  }

  .section-heading {
    display: block;
  }

  .stat-strip {
    grid-template-columns: 1fr;
  }

  .stat {
    border-right: 0;
    border-bottom: 1px solid var(--black);
  }

  .stat:last-child {
    border-bottom: 0;
  }

  .idea-card {
    grid-template-columns: 1fr;
  }

  .idea-card__score {
    min-height: 0;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    border-right: 0;
    border-bottom: 1px solid var(--black);
  }

  .idea-card__score strong {
    font-size: 46px;
  }

  .idea-card__content,
  .idea-card__aside,
  .problem-panel,
  .feature-card,
  .proof-card,
  .audience-card {
    padding: 22px;
  }

  .problem-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .problem-panel + .problem-panel,
  .audience-card + .audience-card {
    border-top: 1px solid var(--black);
    border-left: 0;
  }

  .product-preview {
    grid-template-columns: 1fr;
  }

  .product-preview__sidebar {
    display: none;
  }

  .preview-row {
    grid-template-columns: 1fr auto;
  }

  .preview-row > span:nth-child(2) {
    display: none;
  }

  .flow {
    grid-template-columns: 1fr;
  }

  .flow__item,
  .flow__item:nth-child(2n),
  .flow__item:last-child {
    grid-column: auto;
    border-right: 0;
    border-bottom: 1px solid var(--black);
  }

  .flow__item:last-child {
    border-bottom: 0;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .legal-list div {
    grid-template-columns: 1fr;
  }

  .legal-list dd {
    border-top: 1px solid var(--black);
    border-left: 0;
  }

  .score-panel {
    min-height: 330px;
  }

  .score-row {
    grid-template-columns: 1fr auto;
    gap: 10px 18px;
  }

  .score-row__reason {
    grid-column: 1 / -1;
  }
}