/* Google Fonts - 가독성 높은 디지털/모노스페이스 폰트 및 모던 산세리프 */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Noto+Sans+KR:wght@400;500;700&display=swap');

:root {
  /* 기본 라이트 테마 (화이트 배경, 세련된 1px 얇은 보더) */
  --bg-color: #ffffff;
  --text-color: #111111;
  --text-muted: #666666;
  --border-color: #d1d5db; /* 깔끔하고 얇은 1px 경계선 */
  --border-width: 1px;
  --box-bg: #ffffff;
  --btn-bg: #ffffff;
  --btn-text: #111111;
  --btn-hover-bg: #111111;
  --btn-hover-text: #ffffff;
  --btn-disabled-border: #e5e7eb;
  --btn-disabled-text: #9ca3af;
  --highlight-color: #000000;
  --alert-bg: #f9fafb;
  --surface-color: #f9fafb; /* 카드/태그 보조 배경 */
  --hover-bg: #f3f4f6;      /* 버튼/셀 호버 배경 */
  --font-digital: 'JetBrains Mono', monospace, 'Courier New';
  --font-main: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* 시스템 다크모드 기본 적용 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-color: #0d0d0d;
    --text-color: #f0f0f0;
    --text-muted: #9e9e9e;
    --border-color: #272a30; /* 얇고 은은한 다크 보더 */
    --border-width: 1px;
    --box-bg: #141414;
    --btn-bg: #141414;
    --btn-text: #f0f0f0;
    --btn-hover-bg: #f0f0f0;
    --btn-hover-text: #0d0d0d;
    --btn-disabled-border: #33363d;
    --btn-disabled-text: #6b7280;
    --highlight-color: #ffffff;
    --alert-bg: #1a1c20;
    --surface-color: #1a1c20;
    --hover-bg: #22252b;
  }
}

/* 수동 다크모드 오버라이드 */
[data-theme="dark"] {
  --bg-color: #0d0d0d;
  --text-color: #f0f0f0;
  --text-muted: #9e9e9e;
  --border-color: #272a30;
  --border-width: 1px;
  --box-bg: #141414;
  --btn-bg: #141414;
  --btn-text: #f0f0f0;
  --btn-hover-bg: #f0f0f0;
  --btn-hover-text: #0d0d0d;
  --btn-disabled-border: #33363d;
  --btn-disabled-text: #6b7280;
  --highlight-color: #ffffff;
  --alert-bg: #1a1c20;
  --surface-color: #1a1c20;
  --hover-bg: #22252b;
}

/* 수동 라이트모드 오버라이드 */
[data-theme="light"] {
  --bg-color: #ffffff;
  --text-color: #111111;
  --text-muted: #666666;
  --border-color: #d1d5db;
  --border-width: 1px;
  --box-bg: #ffffff;
  --btn-bg: #ffffff;
  --btn-text: #111111;
  --btn-hover-bg: #111111;
  --btn-hover-text: #ffffff;
  --btn-disabled-border: #e5e7eb;
  --btn-disabled-text: #9ca3af;
  --highlight-color: #000000;
  --alert-bg: #f9fafb;
  --surface-color: #f9fafb;
  --hover-bg: #f3f4f6;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

/* SEO 및 스크린 리더용 숨김 스타일 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px 16px;
}

.container {
  width: 100%;
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ==========================================================================
   글로벌 언어 전환기 (Language Switcher)
   ========================================================================== */
.lang-switch-container {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 2px;
  z-index: 10;
}

.lang-select-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: var(--box-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 5px 26px 5px 10px;
  font-family: var(--font-digital);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23888888' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.lang-select:hover,
.lang-select:focus {
  border-color: var(--text-color);
}

.lang-select option {
  background-color: var(--box-bg);
  color: var(--text-color);
}

/* 공통 섹션 박스 스타일 (얇고 세련된 1px 보더 & 부드러운 라운딩) */
.section {
  background-color: var(--box-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 8px;
  min-height: 410px;
  display: flex;
  flex-direction: column;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.section-label {
  font-family: var(--font-digital);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ==========================================================================
   0-1. 사이트 브랜드 타이틀 (TimerArcade Logo & Branding)
   ========================================================================== */
.site-branding {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 12px 0 16px;
  margin: 6px 0 14px;
  gap: 6px;
}

.brand-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text-color);
  font-family: var(--font-digital);
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.brand-logo-link:hover {
  transform: translateY(-1px) scale(1.02);
}

.brand-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.6));
  animation: brandPulse 2s infinite ease-in-out;
  display: inline-block;
}

@keyframes brandPulse {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.15) rotate(6deg); }
}

.brand-text {
  letter-spacing: 0.5px;
}

.brand-accent {
  background: linear-gradient(135deg, #0284c7 0%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 6px rgba(2, 132, 199, 0.25));
}

@media (prefers-color-scheme: dark) {
  .brand-accent {
    background: linear-gradient(135deg, #00ffff 0%, #00ff88 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(0, 255, 200, 0.45));
  }
}

.brand-tagline {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  margin: 0;
}

/* 1. 최상단 현재 시간 (박스 제거, 콤팩트 스타일 & 줄바꿈 타임존 뱃지) */
.clock-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 6px 0 14px;
  gap: 5px;
}

.clock-title {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.timezone-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background-color: var(--box-bg);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 12px;
  font-family: var(--font-digital);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 2px;
}

.country-flag {
  font-size: 0.85rem;
  line-height: 1;
}

.digital-display-clock {
  font-family: var(--font-digital);
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 700;
  letter-spacing: 1.5px;
  font-variant-numeric: tabular-nums;
  margin: 0;
}

.date-display {
  font-family: var(--font-digital);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 디지털 디스플레이 (시간 텍스트) */
.digital-display {
  font-family: var(--font-digital);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
  margin: 10px 0 14px;
}

.digital-display.large {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
}

.ms-unit {
  font-size: 0.65em;
  opacity: 0.75;
}

/* 그리드 레이아웃 대신 단일 타임 툴 탭 인터페이스 적용 */
.time-tools-section {
  min-height: 480px;
  display: flex;
  flex-direction: column;
}

.time-tools-header {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.time-tools-tabs {
  display: inline-flex;
  gap: 8px;
  background-color: var(--box-bg);
  padding: 4px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.time-tab-btn {
  background-color: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 8px 20px;
  border-radius: 6px;
  font-family: var(--font-digital);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  transition: all 0.2s ease;
}

.time-tab-btn:hover {
  color: var(--text-color);
}

.time-tab-btn.active {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.tab-emoji {
  font-size: 1.05rem;
  line-height: 1;
}

.tab-running-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #00ff88;
  box-shadow: 0 0 8px #00ff88;
  animation: pulse-dot 1.2s infinite ease-in-out;
  display: inline-block;
  margin-left: 4px;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.time-tool-panel {
  display: none;
  flex-direction: column;
  flex: 1;
  animation: timeTabFadeIn 0.2s ease-in-out;
}

.time-tool-panel.active {
  display: flex;
}

@media (max-width: 520px) {
  .time-tools-tabs {
    width: 100%;
    display: flex;
  }
  .time-tab-btn {
    flex: 1;
    justify-content: center;
    padding: 7px 8px;
    font-size: 0.82rem;
    gap: 4px;
  }
}

/* 타이머 입력 필드 (항상 자리 유지) */
.inputs-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  height: 44px;
  margin-bottom: 12px;
}

@media (max-width: 480px) {
  .inputs-group {
    gap: 4px;
  }
}

.input-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.input-item input {
  width: 54px;
  height: 40px;
  background-color: var(--box-bg);
  color: var(--text-color);
  border: var(--border-width) solid var(--border-color);
  border-radius: 4px;
  font-family: var(--font-digital);
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  outline: none;
}

@media (max-width: 480px) {
  .input-item input {
    width: 48px;
    height: 38px;
    font-size: 1.1rem;
  }
}

.input-item input:disabled {
  opacity: 0.4;
  border-color: var(--btn-disabled-border);
  cursor: not-allowed;
}

.input-item input:focus {
  background-color: var(--alert-bg);
}

.input-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.colon {
  font-family: var(--font-digital);
  font-weight: bold;
  font-size: 1.2rem;
}

/* 사운드 토글 스위치 */
.sound-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

.sound-toggle input {
  cursor: pointer;
}

/* 빠른 시간 추가 버튼들 (모바일 겹침 방지 및 1줄 4버튼 최적화) */
.quick-buttons {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  min-height: 32px; /* 고정 height 제거 -> 줄바꿈 발생 시에도 절대 겹치지 않음 */
  margin-bottom: 14px;
}

@media (max-width: 480px) {
  .quick-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 14px;
  }

  .quick-buttons .btn-sm {
    padding: 6px 2px;
    font-size: 0.75rem;
    white-space: nowrap;
    min-width: 0;
  }
}

/* ⚡ 스마트 프리셋 레시피 & 루틴 래퍼 */
.timer-presets-wrapper {
  background: var(--box-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 16px;
  text-align: left;
}

.preset-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.preset-label {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-color);
  letter-spacing: 0.5px;
}

.preset-categories {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.preset-cat-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-cat-btn:hover {
  color: var(--text-color);
  border-color: var(--text-color);
}

.preset-cat-btn.active {
  background: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
}

.preset-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-chip {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
  user-select: none;
}

.preset-chip:hover {
  border-color: var(--text-color);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.preset-chip:active {
  transform: translateY(0);
}

.preset-chip.hidden {
  display: none !important;
}

@media (max-width: 480px) {
  .timer-presets-wrapper {
    padding: 8px 10px;
  }
  .preset-chip {
    padding: 4px 8px;
    font-size: 0.72rem;
  }
}

/* 버튼 스타일 */
.button-group {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 4px;
  min-height: 44px;
}

.btn {
  background-color: var(--btn-bg);
  color: var(--btn-text);
  border: var(--border-width) solid var(--border-color);
  padding: 10px 18px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 76px;
}

.btn:hover:not(:disabled) {
  background-color: var(--btn-hover-bg);
  color: var(--btn-hover-text);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-primary {
  font-weight: 700;
}

.btn-alarm {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
  animation: pulse-border 1s infinite alternate;
}

@keyframes pulse-border {
  0% { transform: scale(1); }
  100% { transform: scale(1.04); }
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}

.btn:disabled {
  border-color: var(--btn-disabled-border);
  color: var(--btn-disabled-text);
  cursor: not-allowed;
  opacity: 0.6;
}

/* 상태 메시지 */
.status-msg {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 14px;
  min-height: 20px;
}

.status-msg.active {
  color: var(--text-color);
  font-weight: 500;
}

.status-msg.alarm-active {
  font-weight: 700;
  animation: blink 0.8s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

/* 스톱워치 랩(구간 기록) 스타일 - 3개 슬롯 고정 높이 확보 */
.lap-counter {
  font-family: var(--font-digital);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.lap-container {
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.lap-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.lap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 126px; /* 3개 항목이 들어갈 공간을 미리 확보하여 높이 변화 방지 */
}

.lap-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: var(--font-digital);
  font-size: 0.9rem;
  height: 36px;
}

.lap-list li.lap-slot-empty {
  border: 1px dashed var(--btn-disabled-border);
  color: var(--btn-disabled-text);
  justify-content: space-between;
}

.lap-list .lap-num {
  font-weight: 700;
  color: var(--text-muted);
}

.lap-list .lap-time {
  font-weight: 600;
}

/* ==========================================
   4. 미니게임 (통합 탭 인터페이스) 스타일
========================================== */
.minigames-section {
  min-height: 620px; /* 높아진 캔버스에 맞춰 탭 전환 시 높이 고정 */
  margin-top: 4px;
  display: flex;
  flex-direction: column;
}

.minigames-main-header {
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.minigame-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tab-btn {
  background-color: var(--box-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 4px;
  font-family: var(--font-digital);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-color);
  border-color: var(--text-color);
}

.tab-btn.active {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
}

.tab-panel {
  display: none;
  flex: 1;
  min-height: 480px; /* 내부 패널 높이 통일 */
  animation: fadeIn 0.2s ease-in-out;
}

.tab-panel.active {
  display: flex;
  flex-direction: column;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-sub-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
  flex-shrink: 0;
}

.panel-tag {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.ai-badge {
  font-family: var(--font-digital);
  font-size: 0.7rem;
  font-weight: 700;
  background-color: var(--text-color);
  color: var(--bg-color);
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  letter-spacing: 1px;
}

.gomoku-stats {
  font-family: var(--font-digital);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.gomoku-stats span {
  font-weight: 700;
  color: var(--text-color);
}

.gomoku-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-top: 10px;
}

@media (min-width: 768px) {
  .gomoku-body {
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
  }
}

.board-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
}

#gomoku-canvas {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1 / 1;
  background-color: var(--box-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  touch-action: manipulation;
}

.gomoku-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 320px;
}

.turn-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
}

.stone-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: inline-block;
  border: 1px solid var(--border-color);
}

.stone-icon.player-stone {
  background-color: #000000;
}

@media (prefers-color-scheme: dark) {
  .stone-icon.player-stone {
    background-color: #222222;
    border-color: #888888;
  }
}

.stone-icon.ai-stone {
  background-color: #ffffff;
}

.gomoku-info-box {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 12px 14px;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

.info-row strong, .info-row span:last-child {
  color: var(--text-color);
}

.gomoku-btns {
  justify-content: stretch;
}

.gomoku-btns .btn {
  flex: 1;
}

#gomoku-message {
  margin-top: 2px;
  text-align: left;
  line-height: 1.4;
}

/* ==========================================
   5. 미니게임 2: 횡스크롤 점프 러너 스타일
========================================== */
.runner-section {
  min-height: auto;
  margin-top: 4px;
}

.runner-header {
  flex-wrap: wrap;
  gap: 8px;
}

.runner-scores {
  font-family: var(--font-digital);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.runner-scores span {
  color: var(--text-color);
}

#panel-runner {
  justify-content: space-between;
}

.runner-game-container {
  position: relative;
  width: 100%;
  border: var(--border-width) solid var(--border-color);
  border-radius: 4px;
  background-color: var(--box-bg);
  overflow: hidden;
  margin: auto 0;
}

.racer-game-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  border: var(--border-width) solid var(--border-color);
  border-radius: 6px;
  background-color: var(--box-bg);
  overflow: hidden;
  margin: 0 auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

#runner-canvas {
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 9;
  display: block;
}

#racer-canvas {
  width: 100%;
  height: auto;
  aspect-ratio: 420 / 580;
  display: block;
}

#panel-runner {
  justify-content: space-between;
}

#panel-racer {
  justify-content: flex-start;
  align-items: stretch;
}

.runner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 15, 29, 0.85);
  backdrop-filter: blur(5px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 20px;
  text-align: center;
  z-index: 10;
  cursor: pointer;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.runner-overlay.hidden {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.runner-overlay-title {
  font-family: var(--font-digital);
  font-size: 1.6rem;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: 2px;
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
}

.runner-overlay-sub {
  font-size: 0.9rem;
  color: #e2e8f0;
  max-width: 90%;
  line-height: 1.4;
}

.runner-footer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  gap: 12px;
  flex-wrap: wrap;
}

.racer-footer-controls {
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.runner-tips {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.btn-jump-touch,
.btn-racer-touch {
  font-family: var(--font-digital);
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 8px 16px;
  background-color: var(--text-color);
  color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
}

.btn-jump-touch:active,
.btn-racer-touch:active {
  transform: scale(0.96);
  opacity: 0.85;
}

.racer-touch-group {
  display: flex;
  gap: 8px;
}

/* ==========================================
   2048 Puzzle Game Styles
========================================== */
#panel-puzzle {
  justify-content: flex-start;
  align-items: stretch;
}

.puzzle-scores {
  font-family: var(--font-digital);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.puzzle-game-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 8px 0;
}

.puzzle-board-wrapper {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1 / 1;
  border: var(--border-width) solid var(--border-color);
  border-radius: 8px;
  background-color: var(--box-bg);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  touch-action: none; /* 제스처 스와이프를 위한 터치 스크롤 방지 */
}

#puzzle-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.puzzle-footer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 400px;
  margin: 8px auto 0;
  width: 100%;
  gap: 12px;
  flex-wrap: wrap;
}

.puzzle-action-btns {
  display: flex;
  gap: 8px;
}

.puzzle-dpad-container {
  display: flex;
  justify-content: center;
  margin-top: 14px;
  margin-bottom: 4px;
}

.puzzle-dpad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  user-select: none;
  touch-action: manipulation;
}

.dpad-middle {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dpad-center {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.4;
}

.dpad-btn {
  width: 48px;
  height: 44px;
  background: var(--box-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  border-radius: 6px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.dpad-btn:hover {
  background: var(--hover-bg);
  border-color: var(--text-color);
}

.dpad-btn:active {
  background: var(--text-color);
  color: var(--bg-color);
  transform: scale(0.92);
}

@media (min-width: 768px) {
  /* PC 데스크톱에서는 키보드 조작이 주를 이루므로 dpad 크기를 콤팩트하게 유지 */
  .puzzle-dpad {
    gap: 4px;
  }
  .dpad-middle {
    gap: 4px;
  }
  .dpad-btn {
    width: 42px;
    height: 38px;
    font-size: 0.95rem;
  }
}

/* ==========================================
   Classic Neon Minesweeper Styles
========================================== */
#panel-mines {
  justify-content: flex-start;
  align-items: stretch;
}

.mines-diff-select {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--box-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  margin-left: 6px;
  cursor: pointer;
  outline: none;
}

.mines-status-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mines-counter-box {
  font-family: var(--font-digital);
  font-size: 0.95rem;
  font-weight: 800;
  background-color: var(--box-bg);
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.mines-counter-box span {
  color: #38bdf8;
  font-family: var(--font-digital);
}

.mines-face-btn {
  font-size: 1.3rem;
  background: var(--box-bg);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s ease;
  user-select: none;
}

.mines-face-btn:active {
  transform: scale(0.9);
}

.mines-game-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 8px 0;
}

.mines-board-wrapper {
  position: relative;
  width: 100%;
  max-width: 420px;
  border: var(--border-width) solid var(--border-color);
  border-radius: 8px;
  background-color: var(--box-bg);
  overflow: hidden;
  padding: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  user-select: none;
  touch-action: manipulation;
}

.mines-grid {
  display: grid;
  gap: 4px;
  width: 100%;
  aspect-ratio: 1 / 1;
}

.mines-cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-family: var(--font-digital);
  font-weight: 800;
  font-size: clamp(0.75rem, 2.5vw, 1.1rem);
  cursor: pointer;
  background-color: var(--btn-bg, #27272a);
  border: 1px solid var(--border-color);
  transition: background-color 0.12s ease, transform 0.08s ease;
  user-select: none;
}

.mines-cell:hover:not(.revealed) {
  background-color: var(--hover-bg);
  border-color: var(--text-color);
}

.mines-cell:active:not(.revealed) {
  transform: scale(0.94);
}

.mines-cell.revealed {
  background-color: rgba(0, 0, 0, 0.25);
  border-color: rgba(255, 255, 255, 0.08);
  cursor: default;
}

.mines-cell.flagged {
  color: #f59e0b;
}

.mines-cell.mine-exploded {
  background-color: #ef4444 !important;
  color: #ffffff;
  animation: mineShake 0.3s ease;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.8);
}

.mines-cell.mine-revealed {
  background-color: rgba(239, 68, 68, 0.2);
  color: #f87171;
}

@keyframes mineShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

/* 숫자별 네온 컬러 */
.mines-cell[data-num="1"] { color: #38bdf8; text-shadow: 0 0 4px rgba(56, 189, 248, 0.4); }
.mines-cell[data-num="2"] { color: #4ade80; text-shadow: 0 0 4px rgba(74, 222, 128, 0.4); }
.mines-cell[data-num="3"] { color: #f87171; text-shadow: 0 0 4px rgba(248, 113, 113, 0.4); }
.mines-cell[data-num="4"] { color: #c084fc; text-shadow: 0 0 4px rgba(192, 132, 252, 0.4); }
.mines-cell[data-num="5"] { color: #fb923c; text-shadow: 0 0 4px rgba(251, 146, 60, 0.4); }
.mines-cell[data-num="6"] { color: #2dd4bf; text-shadow: 0 0 4px rgba(45, 212, 191, 0.4); }
.mines-cell[data-num="7"] { color: #f472b6; text-shadow: 0 0 4px rgba(244, 114, 182, 0.4); }
.mines-cell[data-num="8"] { color: #ffffff; text-shadow: 0 0 4px rgba(255, 255, 255, 0.4); }

.mines-footer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 420px;
  margin: 8px auto 0;
  width: 100%;
  gap: 12px;
  flex-wrap: wrap;
}

.mines-action-group {
  display: flex;
  gap: 8px;
}

.btn-flag-mode.active {
  background-color: #f59e0b !important;
  color: #000000 !important;
  border-color: #f59e0b !important;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

/* ==========================================
   6. 정보성 가이드 & FAQ 섹션 스타일
========================================== */
.guide-section {
  min-height: auto;
  margin-top: 4px;
}

.guide-tag {
  font-family: var(--font-digital);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 6px;
}

@media (min-width: 720px) {
  .guide-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.guide-card {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 16px;
  background-color: var(--box-bg);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.guide-title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-color);
}

.guide-desc {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.guide-desc strong {
  color: var(--text-color);
}

.guide-desc code {
  font-family: var(--font-digital);
  background-color: var(--alert-bg);
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 0.8rem;
  color: var(--text-color);
}

/* FAQ 아코디언 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.faq-item {
  border: 1px solid var(--btn-disabled-border);
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 0.84rem;
}

.faq-q {
  font-weight: 600;
  cursor: pointer;
  color: var(--text-color);
  user-select: none;
}

.faq-a {
  margin-top: 8px;
  color: var(--text-muted);
  line-height: 1.5;
  font-size: 0.8rem;
}

/* ==========================================
   7. 사이트 푸터 & 법적 정책 링크
========================================== */
.site-footer {
  text-align: center;
  padding: 24px 0 12px;
  border-top: 1px solid var(--btn-disabled-border);
  margin-top: 10px;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.footer-link-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  padding: 4px 6px;
  font-family: var(--font-main);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-link-btn:hover {
  color: var(--text-color);
}

.divider {
  color: var(--btn-disabled-border);
  font-size: 0.75rem;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================
   8. 정책 모달 창 스타일
========================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background-color: var(--box-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: 6px;
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  animation: modalScale 0.2s ease;
  z-index: 10;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--text-color);
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.modal-body h4 {
  color: var(--text-color);
  font-size: 0.95rem;
  margin: 16px 0 6px;
}

.modal-body h4:first-child {
  margin-top: 0;
}

.modal-body p, .modal-body ul {
  margin-bottom: 10px;
}

.modal-body ul {
  padding-left: 20px;
}


.runner-footer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  flex-wrap: wrap;
  gap: 8px;
}

.runner-tips {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.btn-jump-touch {
  padding: 8px 18px;
  font-weight: 700;
  display: block;
}

.racer-touch-group {
  display: flex;
  gap: 8px;
}

.btn-racer-touch {
  padding: 8px 16px;
  font-weight: 700;
  display: block;
}

@media (min-width: 600px) {
  .btn-jump-touch,
  .btn-racer-touch {
    display: none; /* 키보드가 있는 PC에서는 터치 버튼 숨김 */
  }
}

/* ==========================================================================
   가이드 & 팁 섹션 & 푸터 & 모달 스타일 보강
   ========================================================================== */
.guide-section {
  margin-top: 10px;
}

.guide-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.guide-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px;
}

.guide-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.guide-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.guide-desc code {
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 5px;
  border-radius: 3px;
  font-family: var(--font-digital);
  font-size: 0.8rem;
}

@media (prefers-color-scheme: dark) {
  .guide-desc code {
    background: rgba(255, 255, 255, 0.1);
  }
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 8px 12px;
  background: var(--bg-color);
}

.faq-q {
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-a {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.45;
}

.site-footer {
  margin-top: 30px;
  padding: 20px 0 30px 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.footer-theme-toggle {
  display: flex;
  justify-content: center;
  margin-bottom: 4px;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--box-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 7px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.theme-toggle-btn:hover {
  background-color: var(--hover-bg);
  border-color: var(--text-color);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.theme-toggle-btn:active {
  transform: translateY(0);
}

.theme-toggle-btn .theme-icon {
  font-size: 1rem;
  line-height: 1;
}

.theme-toggle-btn .theme-text {
  letter-spacing: 0.2px;
}

.footer-links {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-link-btn:hover {
  color: var(--text-color);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* 8대 미니게임 Canvas 통일 스타일 */
#snake-canvas, #breakout-canvas, #flappy-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background-color: var(--box-bg);
  image-rendering: pixelated;
}

/* ==========================================================================
   아케이드 게임 중앙 정렬 & 최적 화면비 (Snake, Breakout, Flappy Bird)
   ========================================================================== */
.arcade-centered-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 10px 0;
}

.snake-board-wrapper,
.breakout-board-wrapper,
.flappy-board-wrapper {
  position: relative;
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--box-bg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  margin: 0 auto;
}

.snake-board-wrapper {
  max-width: 420px;
  aspect-ratio: 1 / 1;
}

.breakout-board-wrapper {
  max-width: 440px;
  aspect-ratio: 420 / 520;
}

.flappy-board-wrapper {
  max-width: 400px;
  aspect-ratio: 400 / 540;
}

.arcade-footer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 440px;
  margin: 10px auto 0;
  gap: 10px;
  flex-wrap: wrap;
}

.touch-controls-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 440px;
  margin: 12px auto 4px;
}

@media (max-width: 480px) {
  .snake-board-wrapper,
  .breakout-board-wrapper,
  .flappy-board-wrapper,
  .arcade-footer-controls,
  .touch-controls-container {
    max-width: 100%;
  }
}