/* =====================================================================
   P2P 아케이드 — 메인 스타일 (화이트 바탕 + 파스텔 연두 포인트 테마)
   ===================================================================== */

/* ── 리셋 & 기본 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ── 배경 팔레트 ── */
  --bg:           #f6f8f7;    /* 전체 기본 배경 */
  --bg-card:      #ffffff;    /* 카드/패널 배경 (순백색) */
  --bg-subtle:    #edf2ef;    /* 서브 영역 배경 */
  --bg-hover:     #f2f7f4;    /* 리스트/버튼 호버 */
  --bg-active:    #e4f3ea;    /* 활성 아이템 */

  /* ── 테두리 ── */
  --border:       #e2e9e4;
  --border-sub:   #edf2ee;
  --border-hi:    #b5e6c3;    /* 연두 포인트 테두리 */

  /* ── 파스텔 연두 포인트 ── */
  --green:        #48bb78;    /* 메인 파스텔 연두 */
  --green-hover:  #3ea86a;    /* 버튼 호버 */
  --green-deep:   #276749;    /* 짙은 연두 텍스트 */
  --green-tint:   #eaf8ee;    /* 연두 배경 틴트 */
  --green-tint-hi:#d7f3df;
  --green-border: #9ae6b4;

  /* ── 보조 포인트 컬러 ── */
  --yellow:       #d69e2e;    /* 방장/골드 */
  --yellow-tint:  #fefcbf;
  --yellow-border:#faf089;

  --coral:        #e53e3e;    /* 패배/경고/상대 */
  --coral-tint:   #fff5f5;
  --coral-border: #feb2b2;

  --sky:          #3182ce;    /* 정보/나 */
  --sky-tint:     #ebf8ff;
  --sky-border:   #bee3f8;

  --purple:       #805ad5;
  --purple-tint:  #faf5ff;
  --purple-border:#e9d8fd;

  /* ── 텍스트 ── */
  --t1:           #1a202c;    /* 헤드라인 / 주요 텍스트 */
  --t2:           #4a5568;    /* 본문 텍스트 */
  --t3:           #718096;    /* 보조 / 설명 텍스트 */
  --t4:           #a0aec0;    /* 연한 텍스트 / 플레이스홀더 */

  /* ── 둥근 카드형 디자인 규격 ── */
  --radius-xl:    24px;
  --radius-lg:    18px;
  --radius:       14px;
  --radius-sm:    10px;
  --radius-xs:    6px;

  /* ── 부드러운 그림자 ── */
  --shadow-sm:    0 2px 6px rgba(0,0,0,0.03);
  --shadow:       0 4px 20px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.02);
  --shadow-lg:    0 10px 30px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.03);
  --shadow-green: 0 4px 14px rgba(72,187,120,0.25);

  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
  font-family: var(--font);
  background: var(--bg);
  color: var(--t1);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
}

/* ── 공통 카드 컴포넌트 ── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, border-color 0.2s;
}

/* ── 화면 전환 ── */
.screen { display: none !important; min-height: 100vh; }
.screen.active { display: flex !important; }

@keyframes screenFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.screen.active { animation: screenFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1); }

/* =====================================================================
   1. HOME SCREEN
   ===================================================================== */
#screen-home {
  height: 100vh;
  max-height: 100vh;
  overflow: hidden;
  flex-direction: row;
  align-items: stretch;
  background: var(--bg);
}

/* ── 사이드바 ── */
.home-sidebar {
  width: 290px;
  height: 100vh;
  max-height: 100vh;
  flex-shrink: 0;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  z-index: 10;
  overflow: hidden;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--border-sub);
  flex-shrink: 0;
}

.logo-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--green);
}

.logo-text {
  display: flex;
  flex-direction: column;
}
.logo-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--t1);
  letter-spacing: -0.3px;
}
.logo-sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--green-deep);
  margin-top: 1px;
}

/* ── 닉네임 프로필 바 ── */
.home-user-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin: 10px 12px 4px;
  background: var(--bg-subtle);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(72,187,120,0.3);
}
.user-info { flex: 1; min-width: 0; }
.user-label {
  font-size: 0.68rem;
  color: var(--t3);
  font-weight: 600;
  display: block;
}
.user-name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--t1);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── 📜 사이드바 게임 목록 독립 스크롤 ── */
.sidebar-games {
  flex: 1;
  min-height: 0;
  padding: 14px 12px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
}
.sidebar-games::-webkit-scrollbar {
  width: 5px;
}
.sidebar-games::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-games::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
}
.sidebar-games::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

.sidebar-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--t3);
  padding: 0 8px;
  margin-bottom: 8px;
}

.sidebar-games ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
  margin: 0;
}

.sidebar-game-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.18s ease;
}
.sidebar-game-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-sub);
}
.sidebar-game-item.active {
  background: var(--green-tint);
  border-color: var(--green-border);
}

.sg-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--t2);
  flex-shrink: 0;
  transition: all 0.18s;
}
.sidebar-game-item.active .sg-icon {
  background: var(--green);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(72,187,120,0.3);
}

.sg-info { flex: 1; min-width: 0; }
.sg-info strong {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t1);
  display: block;
}
.sg-info span {
  font-size: 0.73rem;
  color: var(--t3);
  display: block;
  margin-top: 2px;
}
.sidebar-game-item.active .sg-info strong {
  color: var(--green-deep);
}

.sg-tag, .rgb-tag {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.tag-2p {
  background: var(--purple-tint);
  border: 1px solid var(--purple-border);
  color: var(--purple);
}
.tag-multi {
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-sub);
}

.btn-sidebar-settings {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--t2);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-sidebar-settings:hover {
  background: var(--green-tint);
  border-color: var(--green-border);
  color: var(--green-deep);
}
.btn-sidebar-settings i {
  color: var(--green);
  font-size: 0.95rem;
}

/* ── 메인 영역 ── */
.home-main {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 28px;
  padding: 36px;
  align-items: center;
  max-width: 1300px;
  margin: 0 auto;
  height: 100vh;
  max-height: 100vh;
  overflow-y: auto;
  box-sizing: border-box;
}

/* ── 게임 미리보기 ── */
.game-preview-area {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.game-preview-card {
  width: 100%;
  max-width: 520px;
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
}
.game-preview-card.hidden { display: none; }

.gp-visual {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--green);
  margin-bottom: 24px;
  box-shadow: var(--shadow-green);
}

.game-preview-card h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--t1);
  letter-spacing: -0.8px;
  margin-bottom: 12px;
}

.game-preview-card p {
  font-size: 0.98rem;
  color: var(--t2);
  line-height: 1.7;
  margin-bottom: 24px;
}

.gp-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-subtle);
  color: var(--t2);
  border: 1px solid var(--border);
}
.tag i { color: var(--green); font-size: 0.75rem; }
.tag.tag-highlight {
  background: var(--green-tint);
  border-color: var(--green-border);
  color: var(--green-deep);
}
.tag.tag-highlight i { color: var(--green-deep); }

/* ── 연결 패널 ── */
.connect-panel {
  width: 100%;
  display: flex;
  justify-content: center;
}

.connect-card {
  width: 100%;
  max-width: 420px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.connect-tabs {
  display: flex;
  background: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.ctab {
  flex: 1;
  padding: 12px 10px;
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t3);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.15s ease;
}
.ctab.active {
  color: var(--green-deep);
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.ctab.active i { color: var(--green); }
.ctab:hover:not(.active) { color: var(--t1); }

.ctab-panel {
  display: none;
  flex-direction: column;
  gap: 16px;
}
.ctab-panel.active { display: flex; }

.panel-desc-box {
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  border: 1px solid var(--border-sub);
}
.panel-desc-box h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t1);
  margin-bottom: 4px;
}
.panel-desc-box p {
  font-size: 0.8rem;
  color: var(--t3);
  line-height: 1.5;
}

/* 방 코드 생성 박스 */
.code-reveal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--green-tint);
  border: 1px dashed var(--green-border);
  border-radius: var(--radius);
}
.code-reveal.hidden { display: none; }

.code-reveal-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--green-deep);
}

.code-display {
  display: flex;
  align-items: center;
  gap: 12px;
}
#host-room-code {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--green-deep);
  font-variant-numeric: tabular-nums;
}

/* 방 참가 폼 */
.join-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.code-input-field {
  width: 100%;
  background: var(--bg-hover);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-family: var(--font);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--t1);
  letter-spacing: 12px;
  text-align: center;
  outline: none;
  transition: all 0.15s;
}
.code-input-field::placeholder {
  color: var(--t4);
  letter-spacing: 8px;
  font-weight: 500;
  font-size: 1.4rem;
}
.code-input-field:focus {
  border-color: var(--green);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(72,187,120,0.15);
}

/* =====================================================================
   2. NICKNAME SCREEN
   ===================================================================== */
#screen-nickname {
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.nickname-container {
  width: 100%;
  max-width: 440px;
  padding: 24px;
}

.nick-card {
  padding: 44px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.nick-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--green);
  margin-bottom: 4px;
  box-shadow: var(--shadow-green);
}

.nick-card h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--t1);
}
.nick-card p {
  font-size: 0.9rem;
  color: var(--t3);
  line-height: 1.5;
}

.nick-input {
  width: 100%;
  background: var(--bg-hover);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: var(--font);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--t1);
  text-align: center;
  outline: none;
  transition: all 0.15s;
  margin-top: 6px;
}
.nick-input:focus {
  border-color: var(--green);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(72,187,120,0.15);
}
.nick-input::placeholder { color: var(--t4); font-weight: 400; }

.nick-btn-row {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-top: 6px;
}
.nick-btn-row .btn { flex: 1; }

/* =====================================================================
   3. ROOM LOBBY SCREEN
   ===================================================================== */
#screen-room {
  flex-direction: column;
  align-items: stretch;
  background: var(--bg);
}

/* ── 방 헤더 ── */
.room-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.room-title {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.room-name-label {
  font-size: 0.72rem;
  color: var(--t3);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.room-code-badge {
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  border-radius: var(--radius-sm);
  padding: 4px 16px;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--green-deep);
  letter-spacing: 5px;
  font-variant-numeric: tabular-nums;
}

.room-capacity {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--t2);
  background: var(--bg-subtle);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.room-capacity i { color: var(--green); }

/* ── 방 본체 (PC 3단: 좌측 참가자 / 중앙 게임선택 / 우측 채팅) ── */
.room-body {
  flex: 1;
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  gap: 20px;
  padding: 24px 28px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  align-items: start;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-title i { color: var(--green); }

.panel-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  background: var(--green-tint);
  color: var(--green-deep);
  border: 1px solid var(--green-border);
  border-radius: 999px;
}
.panel-sub {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--t3);
}

/* ── 1. 왼쪽: 플레이어 목록 ── */
.room-players-panel {
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.player-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  transition: all 0.2s ease;
}
.player-item.ready {
  border-color: var(--green-border);
  background: var(--green-tint);
}

.player-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--t1);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}
.player-item.ready .player-avatar {
  background: var(--green);
  color: #ffffff;
  border-color: var(--green);
}

.player-meta {
  flex: 1;
  min-width: 0;
}
.player-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.crown-icon {
  color: var(--yellow);
  font-size: 0.8rem;
}
.player-role {
  font-size: 0.72rem;
  color: var(--t3);
  font-weight: 600;
}

.ready-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--bg-hover);
  color: var(--t3);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.ready-badge.is-ready {
  background: var(--green);
  color: #ffffff;
  border-color: var(--green);
}
.ready-badge.is-host {
  background: var(--yellow-tint);
  color: #b7791f;
  border-color: var(--yellow-border);
}

.player-slots {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.player-slot-empty {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--t4);
}
.slot-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.slot-text {
  font-size: 0.8rem;
  font-weight: 600;
}

/* ── 2. 중앙: 게임 선택 패널 + 컨트롤 ── */
.room-center-panel {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.game-select-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.room-game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.room-game-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--bg-hover);
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}
.room-game-btn:hover:not(.disabled-3p):not(.disabled-game) {
  border-color: var(--green);
  background: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.room-game-btn.selected {
  border-color: var(--green);
  background: var(--green-tint);
  box-shadow: 0 0 0 2px var(--green-border);
}
.room-game-btn.disabled-3p {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.8);
}
.room-game-btn.disabled-game {
  cursor: default;
}

.rgb-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--green);
  margin-bottom: 10px;
}
.room-game-btn.selected .rgb-icon {
  background: var(--green);
  color: #ffffff;
  border-color: var(--green);
}

.rgb-info strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--t1);
  margin-bottom: 2px;
}
.rgb-info span {
  display: block;
  font-size: 0.72rem;
  color: var(--t3);
  line-height: 1.3;
}

.rgb-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
}

.selected-game-display {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--green-deep);
}

/* ── 방 컨트롤 영역 ── */
.room-controls {
  padding: 20px;
  background: var(--bg-hover);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.guest-hint {
  font-size: 0.82rem;
  color: var(--t3);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.control-row {
  width: 100%;
  display: flex;
  gap: 12px;
}
.control-row .btn {
  flex: 1;
  padding: 15px 0;
  font-size: 1.05rem;
}

.btn-ready {
  background: #ffffff;
  border: 2px solid var(--border);
  color: var(--t2);
  transition: all 0.2s ease;
}
.btn-ready:hover {
  border-color: var(--green);
  color: var(--green-deep);
  background: var(--green-tint);
}
.btn-ready.is-ready {
  background: var(--green) !important;
  border-color: var(--green) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(72, 187, 120, 0.4);
}
.btn-ready.is-ready:hover {
  background: #3da864 !important;
  border-color: #3da864 !important;
}
.btn-start {
  background: var(--green);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(72, 187, 120, 0.4);
}
.btn-start:disabled {
  background: var(--border);
  color: var(--t4);
  box-shadow: none;
  cursor: not-allowed;
}

.ready-hint {
  font-size: 0.78rem;
  color: var(--t3);
  text-align: center;
  font-weight: 600;
}

/* ── 3. 오른쪽: 실시간 채팅 패널 공통 스타일 ── */
.room-chat-panel,
.game-chat-panel {
  display: flex;
  flex-direction: column;
  height: 580px;
  padding: 16px;
  box-sizing: border-box;
  background: #ffffff;
}

.gcp-header {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-sub);
  margin-bottom: 10px;
}
.gcp-header h4 {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 7px;
}
.gcp-header h4 i { color: var(--green); }

.chat-count-badge {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 7px;
  background: var(--green-tint);
  color: var(--green-deep);
  border: 1px solid var(--green-border);
  border-radius: 4px;
}

.chat-messages-wrap {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 6px 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
}
.chat-messages-wrap::-webkit-scrollbar { width: 4px; }
.chat-messages-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.chat-system-msg {
  text-align: center;
  font-size: 0.75rem;
  color: var(--t3);
  background: var(--bg-hover);
  padding: 6px 10px;
  border-radius: 6px;
  margin: 2px 0;
  line-height: 1.4;
}

.chat-msg {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: fadeInMsg 0.18s ease;
}
@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.chat-msg.me {
  align-self: flex-end;
  align-items: flex-end;
}
.chat-msg.other {
  align-self: flex-start;
  align-items: flex-start;
}

.chat-sender-info {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--t3);
  margin-bottom: 3px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.chat-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 0.85rem;
  line-height: 1.4;
  word-break: break-word;
  box-shadow: var(--shadow-sm);
}
.chat-msg.me .chat-bubble {
  background: var(--green);
  color: #ffffff;
  border-bottom-right-radius: 2px;
}
.chat-msg.other .chat-bubble {
  background: var(--bg-hover);
  color: var(--t1);
  border: 1px solid var(--border);
  border-bottom-left-radius: 2px;
}

.chat-time {
  font-size: 0.65rem;
  color: var(--t4);
  margin-top: 2px;
}

.chat-input-form {
  display: flex;
  gap: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--border-sub);
  margin-top: auto;
}
.chat-input {
  flex: 1;
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  background: var(--bg-hover);
  transition: all 0.18s ease;
}
.chat-input:focus {
  background: #ffffff;
  border-color: var(--green);
  box-shadow: 0 0 0 2px var(--green-tint);
}
.btn-chat-send {
  padding: 8px 12px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════════
   5. GAME SCREEN (PC 3단: 좌측 참가자 / 중앙 게임 / 우측 채팅)
   ═══════════════════════════════════════════════════════════════════ */
#screen-game {
  background: var(--bg);
  min-height: 100vh;
  flex-direction: column;
  width: 100%;
}

.game-header {
  height: 64px;
  padding: 0 28px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  z-index: 20;
  box-sizing: border-box;
}

.game-title-area {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--t1);
  letter-spacing: -0.3px;
}

.game-room-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--green-deep);
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 2px;
}

.game-main-layout {
  flex: 1;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  gap: 24px;
  align-items: start;
  min-height: calc(100vh - 64px);
  box-sizing: border-box;
}

/* 좌측 상시 참가자 목록 사이드바 */
.game-sidebar-players {
  position: relative;
  width: 100%;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  box-sizing: border-box;
}

.gsp-header {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-sub);
}
.gsp-header h4 {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 7px;
}
.gsp-header h4 i { color: var(--green); }

/* 좌측 퇴장 알림 메시지 영역 */
.gsp-alert-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.gsp-alert-item {
  background: var(--coral-tint);
  border: 1px solid var(--coral-border);
  color: var(--coral);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  animation: slideInDown 0.25s ease;
}
.gsp-alert-item i { flex-shrink: 0; }

@keyframes slideInDown {
  0% { opacity: 0; transform: translateY(-8px); }
  100% { opacity: 1; transform: translateY(0); }
}

.gsp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gsp-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-hover);
  border: 1.5px solid var(--border-sub);
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.gsp-item.is-current-turn {
  background: var(--green-tint) !important;
  border: 2px solid var(--green) !important;
  box-shadow: 0 4px 14px rgba(72, 187, 120, 0.35);
  animation: turnCardBounce 1.2s infinite ease-in-out;
}

@keyframes turnCardBounce {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 14px rgba(72, 187, 120, 0.35);
  }
  50% {
    transform: scale(1.04) translateY(-1px);
    box-shadow: 0 6px 18px rgba(72, 187, 120, 0.55);
  }
}

.gsp-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--t2);
  flex-shrink: 0;
}
.gsp-item.is-current-turn .gsp-avatar {
  background: var(--green);
  color: #ffffff;
  border-color: var(--green);
}

.gsp-meta {
  flex: 1;
  min-width: 0;
}
.gsp-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gsp-tag {
  font-size: 0.65rem;
  color: var(--t3);
}

/* 중앙 게임 플레이 영역 (정중앙 집중) */
.game-play-area {
  width: 100%;
  max-width: 900px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  min-height: 100%;
}

#game-content {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* =====================================================================
   5. 버튼 공통
   ===================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.16s ease;
  white-space: nowrap;
  text-decoration: none;
  box-sizing: border-box;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: scale(0.98); }

.btn-primary {
  background: var(--green);
  color: #ffffff;
  box-shadow: var(--shadow-green);
}
.btn-primary:hover:not(:disabled) {
  background: var(--green-hover);
  box-shadow: 0 6px 18px rgba(72,187,120,0.35);
}

.btn-outline {
  background: #ffffff;
  color: var(--t2);
  border: 1px solid var(--border);
}
.btn-outline:hover:not(:disabled) {
  color: var(--t1);
  border-color: var(--green);
  background: var(--green-tint);
}

.btn-ghost {
  background: transparent;
  color: var(--t2);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}
.btn-ghost:hover { color: var(--t1); background: var(--bg-subtle); }

.btn-lg { padding: 15px 28px; font-size: 1rem; width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 0.82rem; }

.btn-ready {
  flex: 1;
  background: var(--bg-hover);
  color: var(--t2);
  border: 2px solid var(--border);
  padding: 14px 20px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  transition: all 0.15s ease;
}
.btn-ready:hover {
  background: #ffffff;
  border-color: var(--green-border);
}
.btn-ready.is-ready {
  background: var(--green);
  border-color: var(--green);
  color: #ffffff;
  box-shadow: var(--shadow-green);
}

.btn-start {
  flex: 1;
  background: var(--green);
  color: #ffffff;
  border: none;
  padding: 14px 20px;
  font-size: 1rem;
  font-weight: 800;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  transition: all 0.15s ease;
  box-shadow: var(--shadow-green);
}
.btn-start:hover:not(:disabled) {
  background: var(--green-hover);
  box-shadow: 0 6px 20px rgba(72,187,120,0.4);
}
.btn-start.hidden { display: none; }

.btn-icon {
  background: #ffffff;
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--t3);
  font-size: 0.95rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
  line-height: 1;
}
.btn-icon:hover {
  color: var(--green);
  border-color: var(--green-border);
  background: var(--green-tint);
}
.btn-icon.sm { font-size: 0.8rem; padding: 4px 8px; }

/* =====================================================================
   6. OVERLAYS (카운트다운, 결과, 로딩)
   ===================================================================== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: screenFadeIn 0.2s ease;
}
.overlay.hidden { display: none; }

/* ── 환경 설정 모달 ── */
.settings-modal {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: modalPopIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-sub);
}
.settings-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--t1);
  display: flex;
  align-items: center;
  gap: 8px;
}
.settings-header h3 i { color: var(--green); }

.btn-close-settings {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  color: var(--t3);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.15s;
}
.btn-close-settings:hover {
  color: var(--t1);
  background: var(--bg-hover);
}

.settings-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.setting-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--t1);
}

.btn-sound-toggle {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-sound-toggle:hover {
  border-color: var(--green);
  background: var(--green-tint);
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.sound-range-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  outline: none;
  cursor: pointer;
  transition: background 0.15s;
}
.sound-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--green);
  border: 2.5px solid #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform 0.1s;
}
.sound-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}
.sound-range-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--green);
  border: 2.5px solid #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.vol-text {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--t2);
  min-width: 40px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── 카운트다운 오버레이 (3, 2, 1, START) ── */
.countdown-overlay {
  background: rgba(14, 26, 18, 0.72);
  backdrop-filter: blur(12px);
  z-index: 1500;
}

.countdown-modal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
}

.countdown-number-wrap {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(72, 187, 120, 0.15);
  border: 3px solid var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(72, 187, 120, 0.4);
}

.countdown-number {
  font-size: 5.5rem;
  font-weight: 900;
  color: var(--green);
  line-height: 1;
  text-shadow: 0 0 20px rgba(72, 187, 120, 0.6);
  animation: countdownPulse 0.9s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.countdown-sub {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

@keyframes countdownPulse {
  0% { transform: scale(0.6); opacity: 0.2; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 0.9; }
}

.result-modal {
  background: var(--bg-card);
  padding: 48px 40px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.result-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--green-tint);
  border: 2px solid var(--green-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: var(--green);
}

#result-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--t1);
  letter-spacing: -0.5px;
}
#result-message {
  font-size: 0.95rem;
  color: var(--t2);
  line-height: 1.5;
}
.result-score-row {
  width: 100%;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t1);
  background: var(--bg-subtle);
  padding: 12px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.result-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
  width: 100%;
}

/* 로딩 모달 */
.loading-modal {
  background: var(--bg-card);
  padding: 36px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-lg);
}

.loading-ring {
  display: inline-block;
  position: relative;
  width: 48px;
  height: 48px;
}
.loading-ring div {
  box-sizing: border-box;
  display: block;
  position: absolute;
  width: 40px;
  height: 40px;
  margin: 4px;
  border: 4px solid transparent;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: ringRotate 1s cubic-bezier(0.5,0,0.5,1) infinite;
}
.loading-ring div:nth-child(1) { animation-delay: -0.45s; }
.loading-ring div:nth-child(2) { animation-delay: -0.3s; }
.loading-ring div:nth-child(3) { animation-delay: -0.15s; }

@keyframes ringRotate {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
#loading-text { font-size: 0.95rem; font-weight: 700; color: var(--t2); }

/* =====================================================================
   7. TOAST
   ===================================================================== */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 26px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--t1);
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  animation: toastSlideIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}
.toast.hidden { display: none; }
.toast.success { border-color: var(--green-border); color: var(--green-deep); background: var(--green-tint); }
.toast.error   { border-color: var(--coral-border); color: var(--coral); background: var(--coral-tint); }
.toast.warn    { border-color: var(--yellow-border); color: var(--yellow); background: var(--yellow-tint); }

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* =====================================================================
   8. WAITING DOTS & UTILS
   ===================================================================== */
.waiting-dots {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--t3);
  font-size: 0.82rem;
  font-weight: 600;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: dotPulse 1.4s ease-in-out infinite;
}
.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotPulse {
  0%, 80%, 100% { opacity: 0.2; transform: scale(0.8); }
  40%           { opacity: 1;   transform: scale(1.1); }
}

.hidden { display: none !important; }

/* =====================================================================
   9. RESPONSIVE DESIGN
   ===================================================================== */
/* =====================================================================
   9. RESPONSIVE DESIGN (자연스러운 반응형 튜닝)
   ===================================================================== */
html, body {
  overflow-x: hidden;
  width: 100%;
}

@media (max-width: 960px) {
  #screen-home {
    flex-direction: column !important;
    height: auto !important;
    max-height: none !important;
    min-height: 100vh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
  }

  .home-sidebar {
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    flex-direction: column !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border) !important;
    padding-bottom: 10px !important;
    flex-shrink: 0 !important;
    overflow: visible !important;
  }

  .sidebar-logo {
    padding: 14px 18px 10px 18px !important;
    border-bottom: none !important;
  }

  .home-user-bar {
    margin: 0 14px 10px 14px !important;
    padding: 10px 14px !important;
  }

  .sidebar-label {
    display: none !important;
  }

  .sidebar-games {
    padding: 0 14px !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }

  .sidebar-games ul {
    display: flex !important;
    flex-direction: row !important;
    gap: 8px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    padding: 2px 2px 8px 2px !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
  }
  .sidebar-games ul::-webkit-scrollbar { display: none !important; }

  .sidebar-game-item {
    flex: 0 0 auto !important;
    padding: 8px 12px !important;
    white-space: nowrap !important;
    border-radius: var(--radius-sm) !important;
    background: var(--bg-hover) !important;
  }
  .sidebar-game-item.active {
    background: var(--green-tint) !important;
    border-color: var(--green-border) !important;
  }
  .sg-info span { display: none !important; }
  .sidebar-footer { display: none !important; }

  .home-main {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: 1fr !important;
    padding: 16px 14px 40px 14px !important;
    gap: 20px !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .game-preview-area {
    width: 100% !important;
  }

  .game-preview-card {
    max-width: 100% !important;
    padding: 24px 18px !important;
    box-sizing: border-box !important;
  }

  .connect-panel {
    width: 100% !important;
  }

  .connect-card {
    max-width: 100% !important;
    padding: 22px 18px !important;
    box-sizing: border-box !important;
  }

  /* 방 로비 화면 */
  #screen-room {
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 100vh;
    width: 100%;
    max-width: 100vw;
  }
  .room-header {
    padding: 12px 16px;
    gap: 10px;
    flex-wrap: wrap;
    width: 100%;
    box-sizing: border-box;
  }
  .room-body {
    display: flex;
    flex-direction: column;
    padding: 16px 12px 32px 12px;
    gap: 16px;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
    overflow-x: hidden;
  }
  .room-players-panel {
    order: 1;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .room-chat-panel {
    order: 2;
    width: 100%;
    max-width: 100%;
    height: 260px;
    box-sizing: border-box;
  }
  .room-center-panel {
    order: 3;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .room-game-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  /* 인게임 화면 (게임화면을 위로, 아래쪽에 채팅방) */
  #screen-game {
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 100vh;
    width: 100%;
    max-width: 100vw;
  }
  .game-header {
    padding: 10px 14px;
    gap: 10px;
    width: 100%;
    box-sizing: border-box;
  }
  .game-main-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 10px 32px 10px;
    gap: 14px;
    min-height: auto;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  .game-sidebar-players {
    order: 1;
    position: static;
    width: 100%;
    max-width: 100%;
    padding: 10px 12px;
    box-sizing: border-box;
  }
  .gsp-list {
    display: flex;
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 2px;
    width: 100%;
  }
  .gsp-list::-webkit-scrollbar { display: none; }
  .gsp-item {
    flex: 0 0 auto;
    padding: 6px 10px;
  }

  .game-play-area {
    order: 2;
    width: 100%;
    max-width: 100%;
    padding: 0;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  #game-content {
    width: 100%;
    max-width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
  }

  .game-chat-panel {
    order: 3;
    width: 100%;
    max-width: 100%;
    height: 220px;
    box-sizing: border-box;
  }
}

@media (max-width: 560px) {
  .home-main { padding: 16px 10px 32px 10px; }
  .connect-card { padding: 20px 14px; }
  .code-input-field { font-size: 1.5rem; letter-spacing: 8px; }
  .result-modal { padding: 28px 18px; }
  .room-chat-panel { height: 230px; }
  .game-chat-panel { height: 200px; }
}

/* =====================================================================
   ⛏️ MINECRAFT (Eaglercraft 1.8.8) 전용 화면 & 뷰포트 & 가이드 모달
   ===================================================================== */
#screen-minecraft {
  background: #111827;
  min-height: 100vh;
  flex-direction: column;
  width: 100%;
}

.minecraft-header {
  height: 64px;
  padding: 0 24px;
  background: #1f2937;
  border-bottom: 1px solid #374151;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  z-index: 20;
  box-sizing: border-box;
}

.mc-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mc-cube-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #2e7d32;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 2px 10px rgba(46, 125, 50, 0.4);
}

.mc-header-info h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #f9fafb;
  margin: 0;
}

.mc-sub {
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
}

.mc-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.minecraft-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
  width: 100%;
}

.mc-viewport-container {
  width: 100%;
  max-width: 1200px;
  aspect-ratio: 16 / 9;
  background: #000000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  border: 2px solid #374151;
  position: relative;
  box-sizing: border-box;
}

.mc-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* 픽셀 로딩 오버레이 */
.mc-loading-overlay {
  position: absolute;
  inset: 0;
  background: #111827;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 10;
  color: #f9fafb;
  text-align: center;
  padding: 20px;
  transition: opacity 0.3s ease;
}
.mc-loading-overlay.hidden {
  display: none !important;
}

.mc-cube-spinner {
  width: 60px;
  height: 60px;
  position: relative;
  perspective: 200px;
}

.mc-block {
  width: 100%;
  height: 100%;
  background: #2e7d32;
  border: 4px solid #1b5e20;
  box-shadow: 0 0 20px rgba(46, 125, 50, 0.6);
  border-radius: 4px;
  animation: mcBlockSpin 1.8s infinite ease-in-out;
}

@keyframes mcBlockSpin {
  0%   { transform: rotateX(0deg) rotateY(0deg); }
  50%  { transform: rotateX(180deg) rotateY(0deg); background: #558b2f; }
  100% { transform: rotateX(180deg) rotateY(180deg); background: #2e7d32; }
}

.mc-loading-overlay h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #48bb78;
}

.mc-loading-overlay p {
  font-size: 0.85rem;
  color: #9ca3af;
  max-width: 400px;
}

/* 📖 P2P LAN 멀티플레이 가이드 모달 */
.mc-guide-modal {
  background: #ffffff;
  max-width: 680px;
  width: 92%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  padding: 0;
}

.mc-guide-header {
  padding: 18px 24px;
  background: #1f2937;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mc-guide-title {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mc-guide-title h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0;
}

.mc-guide-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: 70vh;
  overflow-y: auto;
}

.mc-guide-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--green-tint);
  border: 1px solid var(--green-border);
  border-radius: var(--radius);
  color: var(--green-deep);
  font-size: 0.85rem;
  font-weight: 700;
}

.mc-guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mc-guide-card {
  padding: 16px;
  background: var(--bg-hover);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mg-card-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mg-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
}
.mg-badge.host {
  background: #2e7d32;
  color: #ffffff;
}
.mg-badge.guest {
  background: #2563eb;
  color: #ffffff;
}

.mg-card-header h4 {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--t1);
  margin: 0;
}

.mg-steps {
  margin: 0;
  padding-left: 18px;
  font-size: 0.82rem;
  color: var(--t2);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mc-guide-tips {
  background: #fffbeb;
  border: 1px solid #fef3c7;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  color: #92400e;
}
.mc-guide-tips p {
  margin: 4px 0 0 0;
  line-height: 1.4;
}

.mc-guide-footer {
  padding: 16px 24px;
  background: var(--bg-hover);
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .mc-guide-grid {
    grid-template-columns: 1fr;
  }
  .minecraft-header {
    padding: 0 14px;
  }
  .mc-header-info h3 {
    font-size: 0.95rem;
  }
  .mc-sub {
    display: none;
  }
}