/* ==========================================================================
   19x19 오목 (Omok) 스타일시트
   ========================================================================== */

:root {
  --bg-color: #121316;
  --panel-bg: #1c1e24;
  --panel-border: #2e323d;
  --text-main: #f0f2f5;
  --text-muted: #8c93a0;
  --accent-gold: #d4a359;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --btn-bg: #272a34;
  --btn-hover: #353946;
  --font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px;
  user-select: none;
}

/* 헤더 */
header {
  text-align: center;
  margin-bottom: 24px;
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #f5d796 0%, #d4a359 50%, #b88636 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  margin-bottom: 6px;
}

header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* 메인 레이아웃 */
.main-container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: flex-start;
  gap: 28px;
  max-width: 1050px;
  width: 100%;
}

/* 바둑판 영역 */
.board-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #18191f;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--panel-border);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

#omok-canvas {
  width: 580px;
  height: 580px;
  border-radius: 8px;
  cursor: pointer;
  touch-action: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  display: block;
}

/* 결과 알림 배너 */
.result-banner {
  display: none;
  width: 100%;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  animation: fadeIn 0.3s ease-in-out;
}

.result-banner.show {
  display: block;
}

.result-banner.win {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.result-banner.loss {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.result-banner.draw {
  background: rgba(212, 163, 89, 0.15);
  color: #f5d796;
  border: 1px solid rgba(212, 163, 89, 0.4);
}

/* 사이드 패널 */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 320px;
  flex-shrink: 0;
}

.card {
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 상태 카드 */
.turn-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.badge {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.badge-player {
  background-color: rgba(59, 130, 246, 0.18);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-ai {
  background-color: rgba(239, 68, 68, 0.18);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  animation: pulse 1.5s infinite;
}

.badge-ended {
  background-color: rgba(140, 147, 160, 0.2);
  color: var(--text-muted);
}

.status-message {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-main);
  min-height: 44px;
}

.move-count-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 6px;
}

/* 설정 폼 */
.control-group {
  margin-bottom: 14px;
}

.control-group:last-child {
  margin-bottom: 0;
}

.control-group label {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

select {
  width: 100%;
  background: var(--btn-bg);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.95rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

select:focus {
  border-color: var(--accent-gold);
}

/* 라디오 세그먼트 (흑돌 / 백돌) */
.radio-segments {
  display: flex;
  background: var(--btn-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  overflow: hidden;
  padding: 3px;
  gap: 3px;
}

.radio-segments label {
  flex: 1;
  text-align: center;
  padding: 8px 10px;
  font-size: 0.88rem;
  cursor: pointer;
  border-radius: 6px;
  margin-bottom: 0;
  transition: all 0.2s;
  color: var(--text-muted);
}

.radio-segments input[type="radio"] {
  display: none;
}

.radio-segments input[type="radio"]:checked + span {
  color: #fff;
  font-weight: 600;
}

.radio-segments label:has(input:checked) {
  background-color: #383c48;
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* 버튼 액션들 */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 16px;
  border: none;
  border-radius: 9px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, #d4a359 0%, #b88636 100%);
  color: #1a1205;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--btn-bg);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
}

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

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* 전적 통계 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  text-align: center;
}

.stat-item {
  background: var(--btn-bg);
  border-radius: 8px;
  padding: 10px 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
}

.stat-value.win { color: var(--accent-green); }
.stat-value.loss { color: var(--accent-red); }
.stat-value.draw { color: var(--accent-gold); }

.stat-reset-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
}

.stat-reset-btn:hover {
  color: var(--accent-red);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* 모바일 & 반응형 미디어 쿼리 */
@media (max-width: 960px) {
  .main-container {
    flex-direction: column;
    align-items: center;
  }

  .board-wrapper {
    width: 100%;
    max-width: 580px;
  }

  #omok-canvas {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
  }

  .side-panel {
    width: 100%;
    max-width: 580px;
  }
}