:root {
  color-scheme: dark;
  --bg: #08090d;
  --surface: #11131a;
  --surface-strong: #171a23;
  --line: #292d38;
  --text: #f7f8f4;
  --muted: #a8adb8;
  --accent: #12ff80;
  --accent-text: #07100b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  word-break: keep-all;
}

body.modal-open {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

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

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 880px;
  font-size: 2.75rem;
  font-weight: 850;
}

h2 {
  font-size: 2rem;
  font-weight: 820;
}

h3 {
  font-size: 1.15rem;
  font-weight: 780;
}

.section {
  border-top: 1px solid var(--line);
  padding: 64px 0;
}

.hero {
  border-top: 0;
  padding: 56px 0 54px;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.hero__inner {
  display: flex;
  align-items: center;
}

.hero__copy {
  display: grid;
  gap: 22px;
}

.hero__lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.16rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 52px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 20px;
  text-align: center;
  text-decoration: none;
  font-weight: 800;
  line-height: 1.25;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.button:focus-visible,
.modal__close:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

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

.button--primary {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: 0 12px 36px rgba(18, 255, 128, 0.2);
}

.button--primary:hover {
  background: var(--accent);
  border-color: var(--text);
}

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

.split {
  display: grid;
  gap: 28px;
}

.section-kicker {
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 850;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.time-card,
.feature-card,
.price-card,
.disclosure-box,
.modal__panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.time-card {
  display: grid;
  gap: 0;
  padding: 10px;
}

.time-row,
.time-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 48px;
  border-bottom: 1px solid var(--line);
  padding: 0 10px;
}

.time-row span {
  color: var(--muted);
}

.time-row strong,
.time-total strong {
  white-space: nowrap;
}

.time-total {
  min-height: 62px;
  border-bottom: 0;
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 850;
}

.card-grid,
.pricing-grid {
  display: grid;
  gap: 12px;
}

.feature-card,
.price-card {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.feature-card p,
.price-card p,
.disclosure-box p,
.modal p {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  width: fit-content;
  border: 1px solid rgba(18, 255, 128, 0.55);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 850;
}

.price-card {
  align-content: space-between;
  min-height: 210px;
}

.price-card--accent {
  border-color: rgba(18, 255, 128, 0.7);
  background: var(--surface-strong);
}

.price {
  margin-top: 12px;
  color: var(--text);
  font-size: 2.25rem;
  font-weight: 860;
  line-height: 1;
}

.disclosure-box {
  display: grid;
  gap: 16px;
  padding: 22px;
  border-left-color: var(--accent);
  background: var(--surface);
}

.disclosure-box h2 {
  font-size: 1.6rem;
}

.final-cta .container {
  display: grid;
  gap: 22px;
}

.modal {
  width: min(100% - 32px, 480px);
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  max-height: calc(100dvh - 32px);
  overflow: visible;
}

.modal:not([open]) {
  display: none;
}

.modal[open] {
  display: block;
}

.modal::backdrop {
  background: rgba(3, 4, 7, 0.78);
}

.modal__panel {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0c0e13;
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
}

.modal h2 {
  padding-right: 42px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 720px) {
  h1 {
    font-size: 4.35rem;
  }

  h2 {
    font-size: 2.65rem;
  }

  .section {
    padding: 82px 0;
  }

  .hero {
    padding: 88px 0 78px;
  }

  .hero__lead {
    font-size: 1.28rem;
  }

  .split {
    grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
    align-items: start;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .disclosure-box {
    padding: 30px;
  }

  .disclosure-box h2 {
    font-size: 2.15rem;
  }
}

@media (min-width: 1040px) {
  h1 {
    font-size: 5.15rem;
  }

  .hero {
    padding: 96px 0 86px;
  }

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

@media (max-width: 420px) {
  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .button {
    width: 100%;
    padding: 0 16px;
  }

  .section {
    padding: 54px 0;
  }

  .hero {
    padding-top: 42px;
  }

  .price {
    font-size: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}