/* Cheating Paper — 공통 게임 UI 토큰 & 베이스 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;600;700&family=Rajdhani:wght@500;600;700&display=swap');

:root {
  --game-bg: #06080d;
  --game-bg-mid: #0d1520;
  --panel: rgba(14, 22, 34, 0.94);
  --panel-edge: rgba(0, 229, 255, 0.45);
  --cyan: #00e5ff;
  --cyan-dim: rgba(0, 229, 255, 0.25);
  --magenta: #ff3d7a;
  --gold: #ffcc33;
  --text: #e8f1f8;
  --text-dim: #8fa3b8;
  --input-bg: rgba(6, 10, 16, 0.92);
  --danger: #ff4757;
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: "Orbitron", system-ui, sans-serif;
  --font-ui: "Rajdhani", "Segoe UI", sans-serif;
  /* 캔버스 장애물 — 네모(나무 무늬) / 원 기둥(검정) */
  --obstacle-wood-light: #e0b78a;
  --obstacle-wood-mid: #a97443;
  --obstacle-wood-dark: #4a2e18;
  --obstacle-wood-stroke: rgba(35, 22, 12, 0.92);
  --obstacle-wood-grain-a: rgba(55, 32, 18, 0.42);
  --obstacle-wood-grain-b: rgba(130, 88, 52, 0.32);
  --obstacle-wood-edge-glow: rgba(255, 236, 210, 0.14);
  --obstacle-octagon-fill: #0a0a0a;
  --obstacle-octagon-stroke: rgba(55, 55, 55, 0.95);
  --obstacle-octagon-inner: rgba(255, 255, 255, 0.045);
  --obstacle-shadow-color: rgba(0, 0, 0, 0.42);
  --obstacle-shadow-blur: 12px;
  --obstacle-hp-bg: rgba(18, 14, 10, 0.92);
  --obstacle-hp-track: rgba(48, 38, 28, 0.72);
  --obstacle-hp-fill: #92c44f;
  --obstacle-hp-fill-low: #d94a4a;
  --obstacle-hp-border: rgba(35, 28, 20, 0.55);
  --obstacle-particle-cold: #c4a080;
  --obstacle-particle-warm: #deb887;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body.game-app {
  margin: 0;
  min-height: 100vh;
  padding: 72px 16px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  background-color: var(--game-bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(0, 229, 255, 0.12), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 100%, rgba(255, 61, 122, 0.08), transparent 50%),
    linear-gradient(180deg, var(--game-bg) 0%, var(--game-bg-mid) 45%, #05080c 100%);
  background-attachment: fixed;
}

/* 미세 격자 오버레이 */
body.game-app::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 0;
}

/* .modal_back은 position:fixed로 뷰포트 전체를 덮어야 하므로 제외 */
body.game-app > *:not(.modal_back) {
  position: relative;
  z-index: 1;
}

body.game-app.game-play {
  --obstacle-shadow-blur: 14px;
  --obstacle-shadow-color: rgba(0, 0, 0, 0.48);
}

/* 로비 패널 외곽 */
.nickname__wrapper.game-frame {
  width: min(420px, 94vw);
  max-width: 440px;
  padding: 3px;
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(135deg, var(--cyan-dim), rgba(255, 61, 122, 0.2));
  box-shadow:
    0 0 40px rgba(0, 229, 255, 0.12),
    0 24px 48px rgba(0, 0, 0, 0.45);
}

.nickname__wrapper .second_wrapper.game-panel-inner {
  width: 100%;
  min-height: auto;
  height: auto;
  padding: 1.35rem 1.1rem 1.5rem;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid rgba(0, 229, 255, 0.25);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.screen-title--sm {
  font-size: clamp(0.95rem, 3.2vw, 1.15rem);
  margin-bottom: 0.5rem;
}

.screen-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 4vw, 1.45rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--cyan), var(--text));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 32px var(--cyan-dim);
}

.screen-sub {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--text-dim);
  font-weight: 500;
  line-height: 1.35;
}

.game-section-label {
  margin: 1rem 0 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(0, 229, 255, 0.2);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.game-section-label:first-of-type {
  margin-top: 0.25rem;
}

button.button,
.button {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 320px);
  margin: 0.35rem auto;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--game-bg);
  background: linear-gradient(180deg, var(--cyan) 0%, #00b8d4 100%);
  border: none;
  border-radius: var(--radius-sm);
  box-shadow:
    0 2px 0 #006064,
    0 6px 20px rgba(0, 229, 255, 0.25);
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

button.button:hover,
.button:hover {
  filter: brightness(1.08);
  box-shadow:
    0 2px 0 #006064,
    0 8px 28px rgba(0, 229, 255, 0.35);
}

button.button:active,
.button:active {
  transform: translateY(2px);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
}

.button.button--ghost {
  background: transparent;
  color: var(--cyan);
  border: 2px solid var(--panel-edge);
  box-shadow: none;
}

.button.button--ghost:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--cyan);
}

.button.button--secondary {
  background: linear-gradient(180deg, #394b5f 0%, #2a3544 100%);
  color: var(--text);
  box-shadow: 0 2px 0 #1a222c, 0 6px 16px rgba(0, 0, 0, 0.35);
}

.button.button--secondary:hover {
  filter: brightness(1.12);
}

.button.button--single {
  background: linear-gradient(180deg, #5a2a2a 0%, #3a1a1a 100%);
  color: #ffaaaa;
  border: 1px solid rgba(255, 80, 80, 0.4);
  box-shadow: 0 2px 0 #2a0a0a, 0 6px 16px rgba(255, 0, 0, 0.15);
}

.button.button--single:hover {
  filter: brightness(1.18);
  border-color: rgba(255, 80, 80, 0.7);
}

.nickname__wrapper .second_wrapper .nickname__input,
.nickname__input {
  display: block;
  width: min(100%, 320px);
  margin: 0.5rem auto;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.nickname__input::placeholder {
  color: var(--text-dim);
  font-weight: 500;
}

.nickname__input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}

select.nickname__input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2300e5ff' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.65rem center;
  padding-right: 2rem;
}

#lobby-nickname-line {
  color: var(--gold);
  font-weight: 600;
  text-shadow: 0 0 20px rgba(255, 204, 51, 0.25);
}

#room-created-code {
  color: var(--text-dim);
  font-size: 0.9rem !important;
}