:root {
  --bg: #080c0f;
  --panel: #0d1317;
  --panel-2: #11191e;
  --line: #26323a;
  --line-soft: rgba(145, 168, 180, 0.16);
  --text: #f1f5f2;
  --muted: #8c9ba2;
  --lime: #c8ff38;
  --lime-dark: #9dce1a;
  --cyan: #37e7d2;
  --danger: #ff5d65;
  --font: Inter, "Pretendard", "Noto Sans KR", system-ui, -apple-system, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(rgba(200, 255, 56, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 255, 56, 0.018) 1px, transparent 1px),
    var(--bg);
  background-size: 52px 52px;
  user-select: none;
}

body.is-dialog-open {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

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

button {
  color: inherit;
}

.app-shell {
  width: min(1500px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 0 34px;
  display: flex;
  flex-direction: column;
}

.topbar {
  min-height: 92px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  padding: 0;
  border: 0;
  background: transparent;
  display: flex;
  gap: 14px;
  align-items: center;
  text-align: left;
  cursor: pointer;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border: 1px solid var(--lime);
  display: grid;
  place-items: center;
  color: var(--lime);
  font: 800 13px/1 var(--mono);
  letter-spacing: -0.04em;
  transform: rotate(-3deg);
}

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

.brand strong {
  font: 800 15px/1.1 var(--mono);
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: 7px;
  color: var(--muted);
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.13em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.server-state {
  color: var(--muted);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.12em;
}

.server-state i {
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px rgba(200, 255, 56, 0.5);
  display: inline-block;
}

.server-state.is-offline i {
  background: var(--danger);
  box-shadow: none;
}

.icon-button {
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

main {
  flex: 1;
}

.view {
  display: none;
}

.view.is-active {
  display: block;
}

.home-view.is-active {
  min-height: calc(100vh - 170px);
  display: grid;
  grid-template-columns: minmax(400px, 0.85fr) minmax(580px, 1.15fr);
  align-items: center;
  gap: clamp(50px, 7vw, 110px);
  padding: clamp(60px, 8vh, 100px) 0;
}

.ad-slot {
  width: 100%;
  min-height: 110px;
  margin-top: 56px;
  border: 1px dashed rgba(140, 155, 162, 0.35);
  background: rgba(13, 19, 23, 0.66);
  display: grid;
  place-content: center;
  gap: 9px;
  text-align: center;
}

.ad-slot-home {
  grid-column: 1 / -1;
  margin-top: 48px;
}

.ad-slot span {
  color: #76868d;
  font: 700 8px/1 var(--mono);
  letter-spacing: 0.16em;
}

.ad-slot p {
  margin: 0;
  color: #526168;
  font: 600 9px/1.3 var(--mono);
  letter-spacing: 0.08em;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--lime);
  font: 700 11px/1.4 var(--mono);
  letter-spacing: 0.16em;
}

.eyebrow span {
  color: var(--muted);
  margin-right: 14px;
}

.hero-copy h1 {
  margin: 0;
  max-width: 700px;
  font-size: clamp(48px, 5.2vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.065em;
  font-weight: 820;
}

.hero-copy h1 em {
  color: var(--lime);
  font-style: normal;
}

.hero-description {
  max-width: 590px;
  margin: 30px 0 40px;
  color: #a7b2b7;
  font-size: 16px;
  line-height: 1.8;
  word-break: keep-all;
}

.hero-metrics {
  display: flex;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-metrics > div {
  flex: 1;
  padding: 20px 16px 17px 0;
}

.hero-metrics > div + div {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  font: 700 28px/1 var(--mono);
}

.hero-metrics span {
  margin-top: 9px;
  color: var(--muted);
  font: 600 8px/1.2 var(--mono);
  letter-spacing: 0.11em;
}

.mode-stack {
  display: grid;
  gap: 12px;
}

.mode-card {
  position: relative;
  min-height: 205px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    background 160ms ease;
}

.mode-card:hover,
.mode-card:focus-visible {
  border-color: var(--lime);
  background: #111a1c;
  transform: translateY(-2px);
  outline: none;
}

.kite-card:hover,
.kite-card:focus-visible {
  border-color: var(--cyan);
}

.mode-number {
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.mode-copy {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 2;
}

.mode-copy strong,
.mode-copy small {
  display: block;
}

.mode-copy strong {
  font: 800 clamp(22px, 2vw, 30px)/1 var(--mono);
  letter-spacing: -0.04em;
}

.mode-copy small {
  margin-top: 11px;
  color: var(--muted);
  font-size: 12px;
}

.mode-arrow {
  position: absolute;
  right: 22px;
  top: 19px;
  font-size: 22px;
}

.mode-visual {
  position: absolute;
  right: 8%;
  top: 24px;
  width: 43%;
  height: 145px;
  opacity: 0.82;
}

.aim-visual {
  background:
    linear-gradient(var(--line-soft), var(--line-soft)) 50% 0 / 1px 100% no-repeat,
    linear-gradient(90deg, var(--line-soft), var(--line-soft)) 0 50% / 100% 1px no-repeat;
}

.aim-visual b {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 68px;
  height: 68px;
  border: 2px solid var(--lime);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: inset 0 0 0 15px rgba(200, 255, 56, 0.06);
}

.aim-visual b::before,
.aim-visual b::after {
  content: "";
  position: absolute;
  background: var(--lime);
}

.aim-visual b::before {
  width: 14px;
  height: 2px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.aim-visual b::after {
  width: 2px;
  height: 14px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.aim-visual i {
  position: absolute;
  width: 13px;
  height: 13px;
  border: 1px solid #53626a;
  border-radius: 50%;
}

.aim-visual i:first-child {
  left: 14%;
  top: 18%;
}

.aim-visual i:last-child {
  right: 8%;
  bottom: 10%;
}

.kite-visual::before {
  content: "";
  position: absolute;
  left: 19%;
  top: 57%;
  width: 58%;
  border-top: 1px dashed #456058;
  transform: rotate(-14deg);
}

.kite-visual i,
.kite-visual b,
.kite-visual span {
  position: absolute;
  border-radius: 50%;
}

.kite-visual i {
  left: 12%;
  bottom: 17%;
  width: 47px;
  height: 47px;
  border: 2px solid var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.kite-visual span {
  left: 51%;
  top: 17%;
  width: 30px;
  height: 30px;
  border: 1px dashed var(--lime);
  box-shadow: 0 0 0 8px rgba(200, 255, 56, 0.03);
}

.kite-visual b {
  right: 8%;
  top: 30%;
  width: 65px;
  height: 65px;
  border: 2px solid var(--cyan);
  box-shadow: inset 0 0 0 14px rgba(55, 231, 210, 0.07);
}

.secondary-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.secondary-actions button {
  min-height: 64px;
  padding: 0 18px;
  border: 1px solid var(--line);
  background: transparent;
  display: flex;
  align-items: center;
  gap: 13px;
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.08em;
  cursor: pointer;
}

.secondary-actions button:hover {
  background: var(--panel);
}

.secondary-actions span {
  color: var(--muted);
}

.secondary-actions i {
  margin-left: auto;
  color: var(--lime);
  font-style: normal;
}

footer {
  min-height: 76px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  color: #64737a;
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.11em;
}

footer a {
  color: #97a5aa;
  text-decoration: none;
}

footer a:hover,
footer a:focus-visible {
  color: var(--lime);
}

.policy-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
}

footer p {
  margin: 0;
}

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

.panel-view {
  padding: 58px 0 80px;
}

.panel-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 44px;
}

.panel-header .eyebrow {
  margin-bottom: 13px;
}

.panel-header h2 {
  margin: 0;
  font: 800 clamp(34px, 4vw, 58px)/1 var(--mono);
  letter-spacing: -0.055em;
}

.back-button,
.exit-button {
  padding: 11px 0;
  border: 0;
  border-bottom: 1px solid var(--muted);
  background: transparent;
  color: var(--muted);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.1em;
  cursor: pointer;
}

.rank-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.segmented,
.rank-filters {
  display: flex;
  align-items: center;
  gap: 8px;
}

.segmented button,
.rank-filters button {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.08em;
  cursor: pointer;
}

.segmented button.is-active {
  border-color: var(--lime);
  background: var(--lime);
  color: #0b100a;
}

.rank-filters button.is-active {
  border-color: #73848c;
  color: var(--text);
}

.rank-filters span {
  margin-left: 8px;
  padding-left: 17px;
  border-left: 1px solid var(--line);
  color: var(--lime);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.08em;
}

.rank-status {
  min-height: 42px;
  padding-top: 17px;
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 18px 22px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
}

th {
  background: #0a1013;
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.1em;
}

td {
  font: 650 13px/1.2 var(--mono);
}

td:nth-child(1) {
  width: 100px;
  color: var(--lime);
}

td:nth-child(3) {
  font-size: 15px;
}

td:nth-child(4),
td:nth-child(5) {
  color: #9bacb3;
}

tr.is-me td {
  background: rgba(200, 255, 56, 0.08);
}

tr.is-me td:first-child {
  box-shadow: inset 3px 0 0 var(--lime);
}

.empty-row td {
  padding: 60px 22px;
  text-align: center;
  color: var(--muted);
}

.manual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
}

.manual-grid article {
  position: relative;
  min-height: 440px;
  padding: 34px;
  background: var(--panel);
}

.manual-grid article + article {
  border-left: 1px solid var(--line);
}

.manual-index {
  position: absolute;
  right: 30px;
  top: 24px;
  color: #202d31;
  font: 800 70px/1 var(--mono);
}

.manual-tag {
  position: relative;
  margin: 0 0 25px;
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.12em;
}

.aim-tag {
  color: var(--lime);
}

.kite-tag {
  color: var(--cyan);
}

.manual-grid h3 {
  position: relative;
  margin: 0 0 42px;
  font-size: clamp(26px, 2.4vw, 38px);
  letter-spacing: -0.04em;
}

.manual-grid ol {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.manual-grid li {
  display: flex;
  gap: 18px;
  align-items: center;
  min-height: 68px;
  border-top: 1px solid var(--line);
  color: #b5c0c4;
  line-height: 1.55;
}

.manual-grid li b {
  color: var(--muted);
  font: 700 10px/1 var(--mono);
}

.scoring-note {
  display: flex;
  gap: 34px;
  align-items: center;
  padding: 27px 31px;
  border: 1px solid var(--line);
  border-top: 0;
  background: #0a1013;
}

.scoring-note span {
  color: var(--lime);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.scoring-note p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.game-view {
  padding: 28px 0 44px;
}

.game-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 56px;
}

.game-heading .eyebrow {
  margin: 0 0 7px;
}

.phase-copy {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 14px 0 12px;
  border: 1px solid var(--line);
  background: #0a1013;
}

.hud > div {
  min-height: 72px;
  padding: 15px 20px;
}

.hud > div + div {
  border-left: 1px solid var(--line);
}

.hud span,
.hud strong {
  display: block;
}

.hud span {
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.hud strong {
  margin-top: 10px;
  font: 750 20px/1 var(--mono);
}

.hud > div:first-child strong {
  color: var(--lime);
}

.canvas-frame {
  position: relative;
  height: min(67vh, 720px);
  min-height: 480px;
  border: 1px solid #35434a;
  background: #0b1114;
  overflow: hidden;
  cursor: crosshair;
}

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

.canvas-corners {
  position: absolute;
  inset: 10px;
  pointer-events: none;
  background:
    linear-gradient(var(--lime), var(--lime)) left top / 25px 1px no-repeat,
    linear-gradient(var(--lime), var(--lime)) left top / 1px 25px no-repeat,
    linear-gradient(var(--lime), var(--lime)) right bottom / 25px 1px no-repeat,
    linear-gradient(var(--lime), var(--lime)) right bottom / 1px 25px no-repeat;
  opacity: 0.45;
}

.countdown {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(6, 10, 12, 0.82);
  color: var(--lime);
  font: 800 clamp(76px, 12vw, 170px)/1 var(--mono);
  letter-spacing: -0.08em;
  z-index: 3;
}

.countdown.is-visible {
  display: grid;
}

.countdown.is-start {
  font-size: clamp(52px, 8vw, 100px);
  letter-spacing: 0.03em;
}

.canvas-note {
  margin: 10px 0 0;
  color: #596970;
  font-size: 11px;
  text-align: right;
}

.dialog-layer[hidden] {
  display: none;
}

.dialog-layer {
  position: fixed;
  inset: 0;
  z-index: 50;
  padding: 16px;
  background: rgba(3, 6, 8, 0.86);
  backdrop-filter: blur(5px);
  display: grid;
  place-items: center;
}

.nickname-dialog,
dialog {
  width: min(520px, calc(100% - 32px));
  padding: 0;
  border: 1px solid #46555d;
  background: #0d1418;
  color: var(--text);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65);
}

.nickname-dialog {
  width: min(520px, 100%);
}

dialog::backdrop {
  background: rgba(3, 6, 8, 0.82);
  backdrop-filter: blur(5px);
}

.nickname-dialog form,
.result-inner {
  padding: 34px;
}

.nickname-dialog .eyebrow,
.result-dialog .eyebrow {
  margin-bottom: 13px;
}

.nickname-dialog h2,
.result-dialog h2 {
  margin: 0;
  font: 800 32px/1.1 var(--mono);
  letter-spacing: -0.05em;
}

.nickname-dialog form > p:not(.eyebrow, .form-error) {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.save-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 24px;
  border: 1px solid var(--line);
  background: #080d10;
}

.save-summary div {
  padding: 16px;
}

.save-summary div + div {
  border-left: 1px solid var(--line);
}

.save-summary span,
.save-summary strong {
  display: block;
}

.save-summary span {
  color: var(--muted);
  font: 700 8px/1 var(--mono);
  letter-spacing: 0.1em;
}

.save-summary strong {
  margin-top: 9px;
  color: var(--lime);
  font: 750 19px/1 var(--mono);
}

.nickname-dialog label {
  display: block;
  margin-top: 30px;
}

.nickname-dialog label span {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.nickname-dialog input {
  width: 100%;
  height: 55px;
  padding: 0 15px;
  border: 1px solid #445159;
  border-radius: 0;
  outline: 0;
  background: #080d10;
  color: var(--text);
  font: 700 18px/1 var(--mono);
}

.nickname-dialog input:focus {
  border-color: var(--lime);
}

.form-error {
  min-height: 19px;
  margin: 9px 0 0;
  color: var(--danger);
  font-size: 11px;
}

.dialog-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.primary-button,
.ghost-button {
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  font: 750 10px/1 var(--mono);
  letter-spacing: 0.08em;
  cursor: pointer;
}

.primary-button {
  border-color: var(--lime);
  background: var(--lime);
  color: #0a0e09;
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.ghost-button {
  background: transparent;
  color: #a2b0b5;
}

.result-dialog {
  width: min(680px, calc(100% - 32px));
}

.result-score {
  position: relative;
  margin: 28px 0 0;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.result-score span {
  display: block;
  color: var(--muted);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.result-score strong {
  display: block;
  margin-top: 8px;
  color: var(--lime);
  font: 800 52px/1 var(--mono);
  letter-spacing: -0.05em;
}

.result-score em {
  display: none;
  position: absolute;
  right: 0;
  top: 32px;
  padding: 9px 12px;
  border: 1px solid var(--lime);
  color: var(--lime);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.09em;
  font-style: normal;
}

.result-score em.is-visible {
  display: block;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.result-grid div {
  padding: 20px 12px 20px 0;
}

.result-grid div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

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

.result-grid span,
.result-rank span {
  color: var(--muted);
  font: 700 8px/1.2 var(--mono);
  letter-spacing: 0.1em;
}

.result-grid strong {
  margin-top: 9px;
  font: 750 17px/1 var(--mono);
}

.result-rank {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.result-rank strong {
  color: var(--cyan);
  font: 800 24px/1 var(--mono);
}

.result-message {
  min-height: 17px;
  color: var(--muted);
  font-size: 11px;
}

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

.result-actions .primary-button {
  flex: 1.4;
}

.result-actions .ghost-button {
  flex: 1;
}

.mobile-notice {
  display: none;
  padding: 10px 15px;
  background: var(--lime);
  color: #0a0f09;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
}

@media (max-width: 1050px) {
  .home-view.is-active {
    grid-template-columns: 1fr;
    gap: 54px;
    padding-top: 60px;
  }

  .ad-slot {
    min-height: 100px;
    margin-top: 38px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .mode-card {
    min-height: 190px;
  }
}

@media (max-width: 720px) {
  .mobile-notice {
    display: block;
  }

  .app-shell {
    padding: 0 18px;
  }

  .topbar {
    min-height: 76px;
  }

  .server-state {
    display: none;
  }

  .home-view.is-active {
    min-height: 0;
    padding: 45px 0 60px;
  }

  .hero-copy h1 {
    font-size: clamp(40px, 12vw, 58px);
  }

  .hero-description {
    font-size: 14px;
  }

  .mode-card {
    min-height: 180px;
  }

  .mode-visual {
    opacity: 0.35;
    right: -3%;
    width: 60%;
  }

  .mode-copy strong {
    font-size: 21px;
  }

  .secondary-actions,
  .manual-grid {
    grid-template-columns: 1fr;
  }

  .manual-grid article + article {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .panel-header,
  .rank-controls {
    align-items: flex-start;
    gap: 24px;
    flex-direction: column;
  }

  .rank-filters {
    flex-wrap: wrap;
  }

  .hud > div {
    padding: 12px 10px;
  }

  .hud strong {
    font-size: 15px;
  }

  .canvas-frame {
    min-height: 430px;
    height: 58vh;
  }

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

  .result-grid div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  footer {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 0;
    text-align: center;
  }

  .policy-links {
    max-width: 380px;
    margin: 0 auto;
  }

  footer p:last-child {
    text-align: center;
  }
}

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