:root {
  color-scheme: dark;
  --ink: #121510;
  --ink-deep: #0b0d0a;
  --surface: #1c231b;
  --surface-lift: #263023;
  --paper: #f2f1e9;
  --paper-soft: #c1c7ba;
  --paper-faint: #8f988b;
  --acid: #c9f27b;
  --acid-deep: #9bc64c;
  --line: rgba(242, 241, 233, 0.15);
  --line-strong: rgba(242, 241, 233, 0.28);
  --ink-line: rgba(18, 21, 16, 0.16);
  --max-width: 1180px;
  --radius-lg: 1.5rem;
  --radius-md: 0.9rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

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

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 76% 7%, rgba(201, 242, 123, 0.06), transparent 24rem),
    var(--ink);
  color: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--acid);
  color: var(--ink);
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--acid);
  outline-offset: 4px;
}

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

h1,
h2,
h3 {
  font-weight: 500;
  letter-spacing: -0.055em;
}

em {
  color: var(--acid);
  font-style: normal;
}

.site-shell {
  min-height: 100vh;
  overflow: clip;
}

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2rem, var(--max-width));
  min-height: 5rem;
  margin: 0 auto;
  transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.site-header::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: transparent;
  content: "";
  transition: background-color 220ms ease;
}

.site-header.is-scrolled {
  background: rgba(18, 21, 16, 0.82);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.08);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled::after {
  background: var(--line);
}

.brand {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1;
}

.brand-dot {
  margin-left: 0.15em;
  color: var(--acid);
  font-size: 1.5em;
  line-height: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 2vw, 1.5rem);
}

.nav-link,
.back-link {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  color: var(--paper-soft);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.nav-link:hover,
.back-link:hover {
  color: var(--acid);
}

.nav-link span {
  margin-right: 0.55rem;
  color: var(--paper-faint);
  font-size: 0.63rem;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.section-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
  min-height: calc(100vh - 5rem);
  padding-top: clamp(4rem, 10vw, 8rem);
  padding-bottom: clamp(5rem, 11vw, 10rem);
}

.hero::before {
  position: absolute;
  top: 14%;
  left: 50%;
  width: 1px;
  height: 8rem;
  background: linear-gradient(to bottom, transparent, var(--line), transparent);
  content: "";
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-label,
.card-tag,
.visual-caption,
.visual-window-bar,
.visual-window-footer,
.policy-aside,
.policy-index,
.about-note span {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
  color: var(--paper-soft);
}

.eyebrow-mark {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 0.25rem rgba(201, 242, 123, 0.12);
}

.hero h1 {
  max-width: 9.5em;
  margin-bottom: clamp(1.5rem, 3vw, 2.35rem);
  font-size: clamp(3.75rem, 11vw, 8.6rem);
  line-height: 0.91;
}

.hero h1 em:last-child {
  white-space: nowrap;
}

.hero-lede {
  max-width: 29rem;
  margin-bottom: 2rem;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  letter-spacing: -0.025em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 3rem;
  padding: 0.75rem 1rem 0.75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button span {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 0.6;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--acid);
  color: var(--ink);
}

.button-primary:hover {
  background: #d9fa9b;
}

.button-light {
  background: var(--ink);
  color: var(--paper);
}

.button-light:hover {
  background: var(--surface);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 3rem;
  color: var(--paper-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: color 180ms ease;
}

.text-link span {
  color: var(--acid);
  font-size: 1rem;
}

.text-link:hover {
  color: var(--acid);
}

.hero-visual {
  position: relative;
  min-height: clamp(21rem, 62vw, 32rem);
}

.visual-window {
  position: absolute;
  z-index: 2;
  top: 9%;
  right: 2%;
  width: min(90%, 26rem);
  min-height: 20rem;
  padding: 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(38, 48, 35, 0.94), rgba(22, 28, 21, 0.9));
  box-shadow: 1.5rem 1.5rem 0 rgba(10, 12, 9, 0.24);
  transform: rotate(3deg);
}

.visual-window::before {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-image: linear-gradient(rgba(242, 241, 233, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(242, 241, 233, 0.035) 1px, transparent 1px);
  background-size: 1.8rem 1.8rem;
  content: "";
  pointer-events: none;
}

.visual-window-bar,
.visual-window-footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--paper-faint);
}

.visual-window-bar {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.signal-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  padding: 2.4rem 0 3.4rem;
}

.signal-item {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.5rem;
  border-bottom: 1px solid var(--line);
  color: var(--paper-soft);
  font-size: clamp(0.78rem, 2.4vw, 0.95rem);
  letter-spacing: -0.02em;
}

.signal-item-active {
  color: var(--paper);
}

.signal-item-active::before {
  position: absolute;
  width: 0.35rem;
  height: 0.35rem;
  margin-left: -0.2rem;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 0.25rem rgba(201, 242, 123, 0.12);
  content: "";
  transform: translateX(-0.35rem);
}

.signal-number {
  color: var(--paper-faint);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
}

.signal-arrow {
  color: var(--acid);
  font-size: 1.1rem;
}

.visual-window-footer {
  align-items: center;
  color: var(--acid);
}

.visual-footer-line {
  display: block;
  width: 32%;
  height: 1px;
  background: var(--acid);
}

.visual-orbit {
  position: absolute;
  border: 1px solid rgba(201, 242, 123, 0.28);
  border-radius: 50%;
}

.visual-orbit-one {
  top: 0;
  right: 0;
  width: 74%;
  aspect-ratio: 1;
}

.visual-orbit-two {
  right: 19%;
  bottom: 0;
  width: 55%;
  aspect-ratio: 1;
  border-color: var(--line);
}

.visual-cross {
  position: absolute;
  z-index: 3;
  color: var(--acid);
  font-size: 1.5rem;
  line-height: 1;
}

.visual-cross-top {
  top: 2%;
  left: 7%;
}

.visual-cross-bottom {
  right: 5%;
  bottom: 6%;
  color: var(--paper-soft);
}

.visual-caption {
  position: absolute;
  bottom: 6%;
  left: 4%;
  z-index: 3;
  margin: 0;
  color: var(--paper-faint);
  line-height: 1.6;
}

.section-focus,
.section-about,
.section-contact {
  padding-top: clamp(5rem, 11vw, 10rem);
  padding-bottom: clamp(5rem, 11vw, 10rem);
}

.section-heading {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
}

.section-label {
  margin: 0;
  color: var(--acid);
}

.section-heading h2,
.contact-card h2,
.policy-hero h1 {
  margin-bottom: 0;
  font-size: clamp(2.6rem, 6.3vw, 5.5rem);
  line-height: 0.98;
}

.focus-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.focus-card {
  position: relative;
  min-height: 22rem;
  padding: clamp(1.35rem, 3vw, 2rem);
  background: var(--surface);
  transition: background-color 220ms ease, transform 220ms var(--ease-out);
}

.focus-card:hover {
  z-index: 1;
  background: var(--surface-lift);
  transform: translateY(-0.35rem);
}

.focus-card-featured {
  background: var(--acid);
  color: var(--ink);
}

.focus-card-featured:hover {
  background: #d9fa9b;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  color: var(--paper-faint);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.focus-card-featured .card-topline,
.focus-card-featured .card-tag {
  color: rgba(18, 21, 16, 0.58);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  margin-top: 3.4rem;
  margin-bottom: 1.3rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--acid);
  font-size: 1.35rem;
}

.focus-card-featured .card-icon {
  border-color: rgba(18, 21, 16, 0.28);
  color: var(--ink);
}

.focus-card h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  letter-spacing: -0.06em;
}

.focus-card p {
  max-width: 18rem;
  margin-bottom: 2rem;
  color: var(--paper-soft);
  font-size: 0.92rem;
  letter-spacing: -0.025em;
}

.focus-card-featured p {
  color: rgba(18, 21, 16, 0.74);
}

.card-tag {
  position: absolute;
  bottom: 1.5rem;
  left: clamp(1.35rem, 3vw, 2rem);
  color: var(--paper-faint);
}

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

.about-grid {
  display: grid;
  gap: 3rem;
}

.about-lede {
  max-width: 23rem;
  margin-bottom: 0;
  color: var(--acid);
  font-size: clamp(1.25rem, 2.5vw, 1.8rem);
  letter-spacing: -0.045em;
  line-height: 1.25;
}

.about-copy {
  max-width: 35rem;
}

.about-copy > p {
  margin-bottom: 2.4rem;
  color: var(--paper-soft);
  font-size: 1.03rem;
  letter-spacing: -0.025em;
}

.about-notes {
  display: grid;
  border-top: 1px solid var(--line);
}

.about-note {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.about-note span {
  color: var(--paper-faint);
}

.about-note strong {
  color: var(--paper);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.section-contact {
  padding-top: 0;
}

.contact-card {
  display: grid;
  gap: 3rem;
  padding: clamp(2rem, 6vw, 5.5rem);
  border-radius: var(--radius-lg);
  background: var(--acid);
  color: var(--ink);
}

.eyebrow-dark {
  color: rgba(18, 21, 16, 0.62);
}

.eyebrow-dark .eyebrow-mark {
  background: var(--ink);
  box-shadow: 0 0 0 0.25rem rgba(18, 21, 16, 0.12);
}

.contact-card h2 em {
  color: var(--ink);
}

.contact-copy {
  max-width: 22rem;
  margin: 1.4rem 0 0;
  color: rgba(18, 21, 16, 0.68);
  letter-spacing: -0.025em;
}

.site-footer {
  display: grid;
  gap: 0.7rem;
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--paper-faint);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--paper-soft);
  transition: color 180ms ease;
}

.site-footer a:hover {
  color: var(--acid);
}

.policy-hero {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--line);
}

.policy-hero h1 {
  max-width: 8em;
  margin-bottom: 2rem;
}

.policy-hero > p:last-child {
  max-width: 33rem;
  margin-bottom: 0;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.7vw, 1.15rem);
  letter-spacing: -0.03em;
}

.policy-layout {
  display: grid;
  gap: 3rem;
  width: min(100% - 2rem, 62rem);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7rem) 0;
}

.policy-aside {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  color: var(--paper-faint);
}

.policy-aside p,
.policy-aside strong {
  margin: 0;
}

.policy-aside strong {
  color: var(--paper-soft);
  font-weight: 600;
}

.policy-aside a {
  color: var(--acid);
}

.policy-content {
  min-width: 0;
}

.policy-section {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 1rem;
  padding: 2.4rem 0;
  border-top: 1px solid var(--line);
}

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

.policy-index {
  margin: 0;
  padding-top: 0.4rem;
  color: var(--acid);
}

.policy-section h2 {
  margin-bottom: 1rem;
  color: var(--paper);
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
}

.policy-section p {
  margin-bottom: 1rem;
  color: var(--paper-soft);
  font-size: 0.95rem;
  letter-spacing: -0.025em;
}

.policy-section p:last-child {
  margin-bottom: 0;
}

.policy-section a {
  color: var(--acid);
  text-decoration: underline;
  text-decoration-color: rgba(201, 242, 123, 0.45);
  text-underline-offset: 0.2em;
}

.policy-details {
  display: grid;
  gap: 0;
  margin: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.policy-details div {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.policy-details dt {
  color: var(--paper-faint);
  font-size: 0.75rem;
}

.policy-details dd {
  margin: 0;
  color: var(--paper-soft);
  font-size: 0.85rem;
}

.policy-table {
  margin: 1.5rem 0;
  border: 1px solid var(--line);
  border-bottom: 0;
}

.policy-row {
  display: grid;
  grid-template-columns: 0.8fr 1.25fr 1fr;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--paper-soft);
  font-size: 0.8rem;
}

.policy-row-heading {
  background: var(--surface);
  color: var(--acid);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.policy-note {
  padding-left: 1rem;
  border-left: 2px solid var(--acid);
  color: var(--paper-faint) !important;
  font-size: 0.8rem !important;
}

.policy-ending {
  margin-top: 1.5rem;
  color: var(--acid) !important;
}

@media (min-width: 720px) {
  .site-header,
  .section-shell,
  .site-footer {
    width: min(100% - 4rem, var(--max-width));
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.8fr);
  }

  .hero-visual {
    min-height: 34rem;
  }

  .section-heading {
    grid-template-columns: minmax(8rem, 0.3fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .about-grid {
    grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1fr);
    gap: clamp(3rem, 9vw, 9rem);
  }

  .contact-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .site-footer {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }

  .site-footer p:last-child {
    text-align: right;
  }

  .policy-hero {
    width: min(100% - 4rem, var(--max-width));
  }

  .policy-layout {
    grid-template-columns: 10rem minmax(0, 1fr);
    gap: clamp(3rem, 8vw, 7rem);
    width: min(100% - 4rem, 62rem);
  }

  .policy-aside {
    display: grid;
    align-content: start;
    justify-content: start;
    gap: 0.5rem;
    position: sticky;
    top: 7rem;
    height: max-content;
  }
}

@media (max-width: 500px) {
  .site-nav {
    gap: 0.05rem;
  }

  .nav-link {
    padding: 0 0.35rem;
    font-size: 0.61rem;
    letter-spacing: 0.06em;
  }

  .nav-link span {
    display: none;
  }

  .hero h1 {
    font-size: clamp(3.45rem, 17vw, 5.3rem);
  }

  .hero h1 em:last-child {
    white-space: normal;
  }

  .visual-window {
    right: -0.35rem;
  }

  .policy-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .policy-row-heading {
    display: none;
  }

  .policy-row span::before {
    display: block;
    margin-bottom: 0.15rem;
    color: var(--acid);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .policy-row span:nth-child(1)::before {
    content: "상황";
  }

  .policy-row span:nth-child(2)::before {
    content: "처리 정보";
  }

  .policy-row span:nth-child(3)::before {
    content: "목적";
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}