:root {
  --paper: #f4ede2;
  --paper-deep: #e5d7c5;
  --ink: #17120f;
  --brown: #5c331f;
  --orange: #ff5c35;
  --lime: #d9ff52;
  --white: #fffdf8;
  --muted: #75695f;
  --line: rgba(23, 18, 15, 0.2);
  --shadow: 8px 8px 0 var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(23, 18, 15, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 18, 15, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  color: var(--ink);
  font-family:
    Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
}

button,
input {
  font: inherit;
}

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

button {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(100% - 32px, 1440px);
  margin: 0 auto;
}

.site-header {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 2px solid var(--ink);
}

.brand,
.enadiverse-link,
footer a {
  color: inherit;
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--orange);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  font: 900 15px/1 Arial, sans-serif;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font: 950 20px/1 Arial, sans-serif;
  letter-spacing: -0.04em;
}

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font: 800 9px/1 Arial, sans-serif;
  letter-spacing: 0.16em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.utility-button,
.enadiverse-link {
  min-height: 42px;
  padding: 0 15px;
  border: 1.5px solid var(--ink);
  background: transparent;
  font: 850 10px/1 Arial, sans-serif;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.utility-button:hover,
.utility-button:focus-visible,
.enadiverse-link:hover,
.enadiverse-link:focus-visible {
  background: var(--lime);
  outline: none;
}

.enadiverse-link {
  display: inline-flex;
  align-items: center;
  background: var(--ink);
  color: var(--white);
}

.game-layout {
  display: grid;
  grid-template-columns: minmax(480px, 760px) minmax(300px, 1fr);
  gap: clamp(30px, 5vw, 76px);
  padding: 56px 0 80px;
  align-items: start;
}

.game-column {
  min-width: 0;
}

.game-frame {
  position: relative;
  width: min(100%, 540px);
  margin: 0 auto;
  overflow: hidden;
  aspect-ratio: 2 / 3;
  background: #ffe6b8;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow);
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.game-hud {
  position: absolute;
  inset: 14px 14px auto;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.game-hud > * {
  padding: 8px 9px;
  background: rgba(255, 253, 248, 0.9);
  border: 1.5px solid var(--ink);
  font: 900 10px/1 Arial, sans-serif;
  letter-spacing: 0.06em;
}

.game-hud strong {
  min-width: 112px;
  text-align: center;
  background: var(--lime);
  font-size: 18px;
}

.game-hud > :last-child {
  text-align: right;
}

.game-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(20px, 6vw, 50px);
  text-align: center;
}

.home-overlay {
  background:
    radial-gradient(circle at 70% 20%, rgba(217, 255, 82, 0.84), transparent 24%),
    linear-gradient(rgba(244, 237, 226, 0.76), rgba(244, 237, 226, 0.94));
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
  font: 900 11px/1 Arial, sans-serif;
  letter-spacing: 0.17em;
}

.home-overlay h1 {
  margin: 0;
  font: 950 clamp(70px, 15vw, 116px) / 0.75 Arial, sans-serif;
  letter-spacing: -0.1em;
  transform: translateX(-0.04em);
}

.home-overlay h1 span {
  color: var(--brown);
  -webkit-text-stroke: 2px var(--ink);
}

.home-description {
  margin: 28px 0;
  font-size: clamp(14px, 3vw, 18px);
  font-weight: 750;
  line-height: 1.55;
}

.overlay-actions,
.result-actions {
  width: min(100%, 330px);
  display: grid;
  gap: 9px;
}

.primary-button,
.secondary-button,
.nickname-form button,
.ranking-pagination button {
  min-height: 50px;
  padding: 0 18px;
  border: 2px solid var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.primary-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--orange);
  box-shadow: 4px 4px 0 var(--ink);
}

.secondary-button {
  background: var(--white);
}

.primary-button:hover,
.primary-button:focus-visible,
.nickname-form button:hover,
.nickname-form button:focus-visible {
  background: var(--lime);
}

.secondary-button:hover,
.secondary-button:focus-visible,
.ranking-pagination button:hover,
.ranking-pagination button:focus-visible {
  background: var(--paper-deep);
}

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

button:disabled {
  cursor: wait;
  opacity: 0.58;
  box-shadow: none;
}

.control-copy {
  margin: 23px 0 0;
  font-size: 12px;
  font-weight: 850;
}

.global-error,
.form-error {
  color: #9f220b;
  font-weight: 800;
}

.global-error {
  max-width: 340px;
  margin: 16px 0 0;
  padding: 10px;
  background: var(--white);
  border: 1px solid #9f220b;
  font-size: 12px;
}

.countdown-overlay {
  background: rgba(23, 18, 15, 0.9);
  color: var(--white);
}

.countdown-overlay p {
  margin: 0;
  color: var(--lime);
  font: 900 13px/1 Arial, sans-serif;
  letter-spacing: 0.2em;
}

.countdown-overlay strong {
  margin-top: 18px;
  font: 950 clamp(100px, 28vw, 190px) / 0.8 Arial, sans-serif;
  letter-spacing: -0.09em;
}

.result-overlay {
  justify-content: flex-start;
  overflow-y: auto;
  background: rgba(244, 237, 226, 0.96);
  scrollbar-width: thin;
}

.result-overlay h2 {
  margin: 0 0 20px;
  font: 950 clamp(42px, 10vw, 70px) / 0.9 Arial, sans-serif;
  letter-spacing: -0.07em;
}

.result-time {
  width: min(100%, 360px);
  padding: 15px;
  background: var(--ink);
  color: var(--white);
  border: 2px solid var(--ink);
}

.result-time span,
.result-time strong {
  display: block;
}

.result-time span {
  margin-bottom: 5px;
  color: var(--lime);
  font-size: 11px;
  font-weight: 800;
}

.result-time strong {
  font: 950 35px/1 Arial, sans-serif;
}

.verified-status {
  min-height: 34px;
  margin: 12px 0 5px;
  font-size: 11px;
  font-weight: 750;
  line-height: 1.5;
}

.personal-best {
  width: min(100%, 360px);
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  background: var(--lime);
  border: 2px solid var(--ink);
  font: 900 11px/1.2 Arial, sans-serif;
}

.nickname-form {
  width: min(100%, 360px);
  margin-top: 14px;
  text-align: left;
}

.nickname-form label {
  display: block;
  margin-bottom: 7px;
  font-size: 12px;
  font-weight: 900;
}

.nickname-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.nickname-form input {
  min-width: 0;
  height: 48px;
  padding: 0 12px;
  background: var(--white);
  border: 2px solid var(--ink);
  border-right: 0;
  border-radius: 0;
}

.nickname-form button {
  min-height: 48px;
  padding-inline: 12px;
  background: var(--orange);
  font-size: 12px;
}

#nickname-help,
.form-error {
  min-height: 16px;
  margin: 6px 0 0;
  font-size: 10px;
}

.rank-result {
  width: min(100%, 360px);
  margin-top: 6px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border: 2px solid var(--ink);
}

.rank-result span,
.rank-result strong {
  display: block;
  text-align: left;
}

.rank-result span {
  font: 850 9px/1 Arial, sans-serif;
  letter-spacing: 0.12em;
}

.rank-result strong {
  margin-top: 4px;
  font: 950 24px/1 Arial, sans-serif;
}

.rank-result p {
  margin: 0;
  color: var(--orange);
  font: 950 20px/1 Arial, sans-serif;
}

.rank-result.is-top-ten {
  background: var(--lime);
}

.result-actions {
  grid-template-columns: 1fr 1fr;
  margin-top: 14px;
}

.result-actions .primary-button {
  justify-content: center;
}

.touch-controls {
  width: min(100%, 540px);
  margin: 18px auto 0;
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.touch-controls button {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  font: 900 14px/1 Arial, sans-serif;
  touch-action: none;
  user-select: none;
}

.touch-controls button.is-pressed {
  transform: translate(3px, 3px);
  background: var(--lime);
  box-shadow: 1px 1px 0 var(--ink);
}

.keyboard-guide {
  margin: 20px auto 0;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

kbd {
  margin-right: 3px;
  padding: 3px 6px;
  background: var(--white);
  border: 1px solid var(--ink);
  border-bottom-width: 3px;
  font-family: Arial, sans-serif;
}

.game-sidebar {
  position: sticky;
  top: 30px;
}

.sidebar-heading h2,
.guide-heading h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 62px);
  font-weight: 950;
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.rule-list {
  margin: 38px 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
}

.rule-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 13px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.rule-list li > span {
  color: var(--orange);
  font: 950 20px/1 Arial, sans-serif;
}

.rule-list strong {
  font-size: 15px;
}

.rule-list p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.difficulty-scale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 2px solid var(--ink);
}

.difficulty-scale div {
  min-width: 0;
  padding: 13px 9px;
  background: var(--white);
  border-right: 1px solid var(--ink);
}

.difficulty-scale div:last-child {
  border-right: 0;
  background: var(--orange);
}

.difficulty-scale span,
.difficulty-scale strong {
  display: block;
  font: 850 9px/1.2 Arial, sans-serif;
}

.difficulty-scale strong {
  margin-top: 5px;
  font-size: 11px;
}

.ad-slot {
  min-height: 116px;
  margin-top: 26px;
  display: grid;
  place-content: center;
  text-align: center;
  background: rgba(255, 253, 248, 0.42);
  border: 1px dashed var(--muted);
  color: var(--muted);
}

.ad-slot span {
  font: 800 9px/1 Arial, sans-serif;
  letter-spacing: 0.16em;
}

.ad-slot p {
  margin: 8px 0 0;
  font: 700 9px/1 Arial, sans-serif;
}

.ranking-view {
  padding: 56px 0 80px;
}

.ranking-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
}

.ranking-heading h1 {
  margin: 0;
  font: 950 clamp(46px, 8vw, 96px) / 0.85 Arial, sans-serif;
  letter-spacing: -0.08em;
}

.ranking-status {
  min-height: 24px;
  margin: 28px 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.ranking-table {
  overflow-x: auto;
  border: 2px solid var(--ink);
  background: var(--white);
}

.ranking-header,
.ranking-row {
  min-width: 620px;
  display: grid;
  grid-template-columns: 90px minmax(190px, 1fr) 180px 150px;
  align-items: center;
}

.ranking-header {
  min-height: 48px;
  background: var(--ink);
  color: var(--white);
  font: 800 10px/1 Arial, sans-serif;
  letter-spacing: 0.1em;
}

.ranking-header span,
.ranking-row > * {
  padding: 0 18px;
}

.ranking-row {
  min-height: 66px;
  border-bottom: 1px solid var(--line);
}

.ranking-row:last-child {
  border-bottom: 0;
}

.ranking-row.is-podium {
  background: color-mix(in srgb, var(--lime) 35%, var(--white));
}

.ranking-rank,
.ranking-time {
  font: 950 18px/1 Arial, sans-serif;
}

.ranking-nickname {
  overflow: hidden;
  font-weight: 850;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ranking-date {
  color: var(--muted);
  font-size: 12px;
}

.ranking-empty {
  padding: 46px 20px;
  text-align: center;
  color: var(--muted);
}

.ranking-pagination {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.ranking-pagination button {
  min-height: 42px;
  background: var(--white);
  font: 850 10px/1 Arial, sans-serif;
}

.ranking-pagination span {
  min-width: 80px;
  text-align: center;
  font: 900 12px/1 Arial, sans-serif;
}

.ranking-ad {
  min-height: 100px;
}

.content-guide {
  padding: 80px 0;
  border-top: 2px solid var(--ink);
}

.guide-heading {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(300px, 1.2fr);
  column-gap: clamp(30px, 8vw, 110px);
}

.guide-heading .eyebrow {
  grid-column: 1 / -1;
}

.guide-heading > p:last-child {
  margin: 0;
  align-self: end;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.guide-grid,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: 58px;
  border-top: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
}

.guide-grid article,
.faq-grid article {
  min-height: 230px;
  padding: 28px;
  background: rgba(255, 253, 248, 0.55);
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.guide-grid article > span {
  color: var(--orange);
  font: 900 10px/1 Arial, sans-serif;
  letter-spacing: 0.12em;
}

.guide-grid h3,
.faq-grid h3 {
  margin: 32px 0 12px;
  font-size: 23px;
  letter-spacing: -0.04em;
}

.guide-grid p,
.faq-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.faq-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.faq-grid article {
  min-height: 190px;
}

.faq-grid h3 {
  margin-top: 0;
  font-size: 17px;
}

.faq-grid a {
  color: var(--ink);
  font-weight: 850;
}

.content-ad {
  min-height: 130px;
}

footer {
  min-height: 150px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-content: center;
  gap: 16px 30px;
  border-top: 2px solid var(--ink);
}

.footer-brand {
  font: 950 27px/1 Arial, sans-serif;
  letter-spacing: -0.05em;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 12px;
  font-weight: 800;
}

footer p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font: 700 10px/1 Arial, sans-serif;
}

@media (hover: hover) {
  .touch-controls {
    display: none;
  }
}

@media (pointer: coarse), (max-width: 820px) {
  .touch-controls {
    display: grid;
  }

  .keyboard-guide {
    display: none;
  }
}

@media (max-width: 980px) {
  .game-layout {
    grid-template-columns: 1fr;
  }

  .game-sidebar {
    position: static;
  }

  .guide-heading {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

@media (max-width: 700px) {
  .page-shell {
    width: min(100% - 20px, 1440px);
  }

  .site-header {
    min-height: 78px;
  }

  .brand small,
  .enadiverse-link {
    display: none;
  }

  .brand-mark {
    width: 40px;
  }

  .header-actions {
    gap: 5px;
  }

  .utility-button {
    min-height: 38px;
    padding: 0 9px;
    font-size: 8px;
  }

  .game-layout,
  .ranking-view {
    padding: 30px 0 58px;
  }

  .game-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .game-frame {
    box-shadow: 5px 5px 0 var(--ink);
  }

  .game-overlay {
    padding: 24px 18px;
  }

  .home-overlay h1 {
    font-size: clamp(68px, 25vw, 100px);
  }

  .home-description {
    margin: 22px 0;
  }

  .game-hud {
    inset: 9px 9px auto;
  }

  .game-hud > * {
    padding: 6px;
    font-size: 8px;
  }

  .game-hud strong {
    min-width: 94px;
    font-size: 15px;
  }

  .result-overlay {
    padding-top: 24px;
  }

  .result-overlay .eyebrow {
    margin-bottom: 7px;
  }

  .result-overlay h2 {
    margin-bottom: 12px;
  }

  .verified-status {
    margin-bottom: 0;
  }

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

  .nickname-form input {
    border-right: 2px solid var(--ink);
    border-bottom: 0;
  }

  .difficulty-scale {
    grid-template-columns: 1fr;
  }

  .difficulty-scale div {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .difficulty-scale div:last-child {
    border-bottom: 0;
  }

  .ranking-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .guide-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .guide-grid article,
  .faq-grid article {
    min-height: 0;
  }

  footer {
    grid-template-columns: 1fr;
    padding: 32px 0;
  }

  footer nav {
    justify-content: flex-start;
  }
}

@media (max-height: 760px) and (min-width: 701px) {
  .game-frame {
    width: min(100%, 440px);
  }
}

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

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