:root {
  --ink: #161710;
  --ink-soft: #33352b;
  --paper: #eee9d9;
  --paper-bright: #f8f4e8;
  --paper-dim: #d8d2c0;
  --signal: #c7ff1a;
  --signal-deep: #91bd00;
  --alert: #ff5438;
  --blue: #4169e1;
  --line: rgba(22, 23, 16, 0.28);
  --line-strong: rgba(22, 23, 16, 0.72);
  --shadow: 0 20px 70px rgba(13, 14, 9, 0.22);
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --body: "Noto Sans KR", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(rgba(22, 23, 16, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 23, 16, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 20px 20px;
  font-family: var(--body);
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  content: "";
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--paper-bright);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  padding: 0 4vw;
  color: var(--paper-bright);
  background: rgba(22, 23, 16, 0.96);
  border-bottom: 1px solid rgba(199, 255, 26, 0.44);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-family: var(--mono);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.brand-glyph {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: var(--ink);
  background: var(--signal);
  font-size: 0.65rem;
  letter-spacing: -0.08em;
  transform: rotate(-3deg);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.preview-badge {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
}

.language-control select {
  padding: 6px 28px 6px 9px;
  color: var(--paper-bright);
  background: var(--ink);
  border: 1px solid rgba(248, 244, 232, 0.42);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 0.7rem;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.78fr);
  gap: clamp(28px, 5vw, 84px);
  min-height: calc(100vh - 58px);
  padding: clamp(36px, 6vw, 92px) 5vw 48px;
  overflow: hidden;
  border-bottom: 3px solid var(--ink);
}

.hero::after {
  position: absolute;
  right: -8vw;
  bottom: -17vw;
  width: 46vw;
  aspect-ratio: 1;
  content: "";
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow:
    0 0 0 5vw rgba(22, 23, 16, 0.025),
    0 0 0 10vw rgba(22, 23, 16, 0.018),
    0 0 0 15vw rgba(22, 23, 16, 0.012);
  pointer-events: none;
}

.hero-index {
  position: absolute;
  top: 20px;
  left: 5vw;
  right: 5vw;
  display: flex;
  justify-content: space-between;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.hero-copy {
  align-self: center;
  max-width: 920px;
}

.eyebrow,
.section-code,
.document-label,
.count-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow::before {
  display: inline-block;
  width: 34px;
  height: 8px;
  margin-right: 10px;
  content: "";
  background: var(--signal-deep);
}

h1 {
  max-width: 990px;
  margin: 24px 0 24px;
  font-size: clamp(3rem, 8vw, 8.5rem);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: -0.075em;
  text-wrap: balance;
}

.hero-summary {
  max-width: 690px;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.45vw, 1.32rem);
  line-height: 1.75;
}

.declaration-card {
  position: relative;
  align-self: center;
  padding: 28px;
  background: var(--paper-bright);
  border: 1px solid var(--line-strong);
  box-shadow: 9px 9px 0 var(--ink);
  transform: rotate(1deg);
}

.declaration-card::before,
.declaration-card::after {
  position: absolute;
  width: 15px;
  height: 15px;
  content: "";
  border: 1px solid var(--ink);
}

.declaration-card::before {
  top: 8px;
  left: 8px;
  border-right: 0;
  border-bottom: 0;
}

.declaration-card::after {
  right: 8px;
  bottom: 8px;
  border-top: 0;
  border-left: 0;
}

.declaration-stamp {
  position: absolute;
  top: -16px;
  right: 18px;
  padding: 5px 10px;
  color: var(--paper-bright);
  background: var(--alert);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  transform: rotate(-5deg);
}

.declaration-card h2 {
  margin: 22px 0 14px;
  font-size: 1.35rem;
  letter-spacing: -0.035em;
}

.declaration-card blockquote,
.form-declaration blockquote {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.legal-note {
  margin: 20px 0 0;
  padding-top: 14px;
  color: var(--ink-soft);
  border-top: 1px dashed var(--line-strong);
  font-size: 0.72rem;
}

.hero-action {
  grid-column: 1 / -1;
  align-self: end;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
}

.hero-action strong {
  display: block;
  margin-top: 5px;
  font-family: var(--mono);
  font-size: clamp(2rem, 4vw, 4.6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.08em;
}

.primary-action,
.secondary-action,
.archive-search button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 12px 18px;
  color: var(--paper-bright);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.035em;
  transition: color 140ms ease, background 140ms ease, transform 140ms ease;
}

.primary-action:hover,
.archive-search button:hover {
  color: var(--ink);
  background: var(--signal);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--ink);
}

.primary-action.compact {
  min-width: 132px;
  gap: 8px;
}

.secondary-action {
  color: var(--ink);
  background: transparent;
}

.secondary-action:hover {
  background: var(--paper-dim);
}

.archive {
  padding: clamp(42px, 7vw, 92px) 4vw 5vw;
  color: var(--paper-bright);
  background: var(--ink);
}

.archive-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.48fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 34px;
}

.archive h2,
.principles h2 {
  margin: 10px 0 8px;
  font-size: clamp(2rem, 4vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.archive-header p:not(.section-code) {
  margin: 0;
  color: rgba(248, 244, 232, 0.68);
}

.archive-search {
  display: block;
}

.archive-search label {
  display: block;
  margin-bottom: 7px;
  color: rgba(248, 244, 232, 0.72);
  font-family: var(--mono);
  font-size: 0.7rem;
}

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

.archive-search input {
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  color: var(--paper-bright);
  background: transparent;
  border: 1px solid rgba(248, 244, 232, 0.44);
  border-right: 0;
  border-radius: 0;
  font-family: var(--mono);
}

.archive-search button {
  min-height: 44px;
  color: var(--ink);
  background: var(--signal);
  border-color: var(--signal);
}

.search-status {
  min-height: 1.4em;
  margin: 6px 0 0;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.wall-key {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
  color: rgba(248, 244, 232, 0.54);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.record-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
  gap: 3px;
  width: 100%;
  min-height: 78px;
  padding: 8px;
  background:
    linear-gradient(rgba(248, 244, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(248, 244, 232, 0.035) 1px, transparent 1px),
    #0c0d09;
  background-size: 18px 18px;
  border: 1px solid rgba(248, 244, 232, 0.22);
}

.record-entry {
  min-width: 0;
  aspect-ratio: 1;
}

.record-cell {
  position: relative;
  display: grid;
  width: 100%;
  height: 100%;
  min-width: 0;
  aspect-ratio: 1;
  padding: 0;
  place-items: stretch;
  overflow: hidden;
  background: #292b22;
  border: 1px solid rgba(248, 244, 232, 0.18);
  border-radius: 0;
}

.record-cell::after {
  position: absolute;
  inset: 0;
  content: "";
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.2);
  pointer-events: none;
}

.record-cell:hover,
.record-cell:focus-visible,
.record-cell[data-active="true"] {
  z-index: 2;
  border-color: var(--signal);
  outline: 2px solid var(--signal);
  outline-offset: 1px;
}

.record-cell canvas {
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.archive-empty {
  padding: 42px;
  text-align: center;
  border: 1px dashed rgba(248, 244, 232, 0.3);
}

.principles {
  padding: clamp(44px, 7vw, 96px) 5vw;
  border-bottom: 1px solid var(--line-strong);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 46px;
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
}

.principle-grid article {
  min-height: 240px;
  padding: 22px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.principle-grid article > span {
  color: var(--signal-deep);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.principle-grid h3 {
  margin: 50px 0 12px;
  font-size: 1.2rem;
}

.principle-grid p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 4vw;
  color: var(--paper-bright);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
}

.record-peek {
  position: fixed;
  z-index: 80;
  display: none;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  width: min(310px, calc(100vw - 24px));
  padding: 10px;
  color: var(--paper-bright);
  background: #11120e;
  border: 1px solid var(--signal);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.36);
  pointer-events: none;
}

.record-peek[data-visible="true"] {
  display: grid;
}

.record-peek canvas {
  width: 54px;
  height: 54px;
  image-rendering: pixelated;
  background: #292b22;
}

.record-peek strong,
.record-peek span {
  display: block;
}

.record-peek strong {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.peek-country {
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.peek-message {
  margin-top: 5px;
  overflow: hidden;
  color: rgba(248, 244, 232, 0.68);
  font-size: 0.68rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

dialog {
  width: min(820px, calc(100vw - 24px));
  max-height: min(900px, calc(100vh - 24px));
  padding: 0;
  color: var(--ink);
  background: var(--paper-bright);
  border: 1px solid var(--ink);
  border-radius: 0;
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgba(11, 12, 8, 0.76);
  backdrop-filter: blur(5px);
}

.registration-dialog form,
.record-dialog article {
  display: flex;
  min-height: 100%;
  flex-direction: column;
}

.dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 22px;
  border-bottom: 1px solid var(--line-strong);
}

.dialog-header h2 {
  margin: 7px 0 0;
  font-size: clamp(1.35rem, 3vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -0.05em;
}

.icon-button {
  display: grid;
  width: 38px;
  height: 38px;
  padding: 0;
  place-items: center;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 1.3rem;
}

.icon-button:hover {
  color: var(--paper-bright);
  background: var(--ink);
}

.step-indicator {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line-strong);
}

.step-indicator li {
  display: flex;
  gap: 9px;
  padding: 9px 14px;
  color: rgba(22, 23, 16, 0.58);
  border-right: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.step-indicator li:last-child {
  border-right: 0;
}

.step-indicator li[aria-current="step"] {
  color: var(--ink);
  background: var(--signal);
}

.form-step {
  padding: clamp(22px, 4vw, 38px);
}

.form-step h3 {
  margin: 0 0 7px;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: -0.04em;
}

.step-description {
  margin: 0 0 24px;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 20px;
}

.field {
  display: block;
}

.field-wide {
  grid-column: 1 / -1;
}

.field > span,
.field > small {
  display: block;
}

.field > span {
  margin-bottom: 6px;
  font-size: 0.78rem;
  font-weight: 600;
}

.field span small,
.field span b {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 11px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.36);
  border: 1px solid var(--line-strong);
  border-radius: 0;
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"] {
  border: 2px solid var(--alert);
}

.field > small {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.66rem;
}

.field-error {
  min-height: 1em;
  color: #a82313 !important;
  font-weight: 600;
}

.form-error-summary {
  margin: 18px 22px 0;
  padding: 10px 12px;
  color: #8b160a;
  background: #ffe0d8;
  border-left: 4px solid var(--alert);
  font-size: 0.78rem;
}

.form-declaration {
  margin: 22px 0;
  padding: clamp(20px, 4vw, 34px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
}

.form-declaration blockquote {
  margin-top: 18px;
}

.check-field {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  align-items: start;
  cursor: pointer;
  font-size: 0.84rem;
}

.check-field input {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--ink);
}

.pixel-workspace {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 0.62fr);
  gap: 28px;
  align-items: start;
  margin-top: 24px;
}

.pixel-editor {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: min(100%, 420px);
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  background: var(--ink);
  gap: 1px;
  touch-action: none;
}

.pixel-cell {
  min-width: 0;
  aspect-ratio: 1;
  padding: 0;
  background: var(--paper);
  border: 0;
  border-radius: 0;
}

.pixel-cell:focus-visible {
  z-index: 2;
  outline-color: var(--blue);
  outline-offset: -4px;
}

.pixel-tools fieldset {
  margin: 0 0 20px;
  padding: 0;
  border: 0;
}

.pixel-tools legend {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.palette {
  display: grid;
  grid-template-columns: repeat(4, 36px);
  gap: 7px;
}

.color-button {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 2px solid var(--paper-bright);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--ink);
}

.color-button[aria-pressed="true"] {
  box-shadow: 0 0 0 3px var(--ink);
}

.tool-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tool-buttons button {
  padding: 7px 9px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 0.66rem;
}

.tool-buttons button[aria-pressed="true"] {
  background: var(--signal);
}

.dialog-actions,
.record-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: auto;
  padding: 14px 22px;
  border-top: 1px solid var(--line-strong);
}

.preview-warning {
  margin-right: auto;
  color: var(--ink-soft);
  font-size: 0.65rem;
}

.record-dialog {
  width: min(700px, calc(100vw - 24px));
}

.record-detail-body {
  display: grid;
  grid-template-columns: minmax(180px, 0.65fr) 1fr;
  gap: 30px;
  padding: clamp(22px, 5vw, 42px);
}

#record-detail-pixel {
  width: 100%;
  aspect-ratio: 1;
  image-rendering: pixelated;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.record-detail-body dl {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.record-detail-body dl > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.record-detail-body dt {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.record-detail-body dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1000;
  max-width: min(360px, calc(100vw - 40px));
  padding: 12px 16px;
  color: var(--ink);
  background: var(--signal);
  border: 1px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  font-family: var(--mono);
  font-size: 0.72rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
}

.toast[data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

[hidden] {
  display: none !important;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 72px;
  }

  .declaration-card {
    max-width: 620px;
    transform: none;
  }

  .archive-header {
    grid-template-columns: 1fr;
  }

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

  .principle-grid article {
    min-height: auto;
  }

  .principle-grid h3 {
    margin-top: 26px;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 0 16px;
  }

  .preview-badge {
    display: none;
  }

  .hero-index span:nth-child(2) {
    display: none;
  }

  h1 {
    font-size: clamp(2.8rem, 16vw, 5.3rem);
  }

  .hero-action {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-action {
    width: 100%;
  }

  .record-wall {
    grid-template-columns: repeat(auto-fill, minmax(32px, 1fr));
    gap: 2px;
  }

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

  .archive-search input {
    border-right: 1px solid rgba(248, 244, 232, 0.44);
    border-bottom: 0;
  }

  .site-footer {
    flex-direction: column;
  }

  .field-grid,
  .pixel-workspace,
  .record-detail-body {
    grid-template-columns: 1fr;
  }

  .pixel-editor {
    margin: 0 auto;
  }

  .step-indicator li {
    justify-content: center;
  }

  .step-indicator li span:last-child {
    display: none;
  }

  .dialog-actions {
    flex-wrap: wrap;
  }

  .preview-warning {
    width: 100%;
    margin: 0 0 4px;
  }

  .record-detail-body dl > div {
    grid-template-columns: 90px 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}