/* style.css - Modern Dark Theme (Chess.com Style) */

/* 1. 기본 설정 및 폰트 */
:root {
    --bg-color: #302e2b;        /* 짙은 웜그레이 배경 (Chess.com st) */
    --card-bg: #262421;         /* 카드/모달 배경 (더 어두움) */
    --text-primary: #ffffff;    /* 흰색 텍스트 */
    --text-secondary: #c3c3c1;  /* 밝은 회색 텍스트 */
    --accent-color: #81b64c;    /* 포인트 컬러 (편안한 녹색) */
    --accent-hover: #95bb4a;    /* 포인트 호버 */
    --border-color: #403d39;    /* 어두운 테두리 */
    --input-bg: #3d3b38;        /* 입력창 배경 */
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-y: auto;
}

/* 1-1. 홈 (로비) - 가볍고 직관적 */
.lobby-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    overflow-y: auto;
    padding: 20px;
}

.lobby-modal.hidden {
    display: none !important;
    pointer-events: none;
}

.lobby-content {
    width: 100%;
    max-width: 320px;
    margin: auto;
}

.lobby-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    margin-bottom: 32px;
}

.lobby-title {
    font-size: 22px;
    color: var(--text-primary);
    font-weight: 500;
    letter-spacing: -0.5px;
}

.nickname-value {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.nickname-change-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 4px;
    cursor: pointer;
    font-size: 14px;
    opacity: 0.6;
}
.nickname-change-btn:hover { opacity: 1; }

.lobby-btn {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s;
}

.primary-btn {
    background-color: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
    margin-bottom: 12px;
}
.primary-btn:hover { background-color: var(--accent-hover); border-color: var(--accent-hover); }

.secondary-btn {
    background-color: transparent;
    color: var(--text-primary);
    flex-shrink: 0;
}

.secondary-btn:hover {
    background-color: var(--input-bg);
}

.join-row {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.join-row .room-input {
    flex: 1 1 0;
    min-width: 0; /* Safari flex 정규화 */
    margin-bottom: 0;
}

.join-row .lobby-btn {
    width: auto;
    min-width: 72px;
    margin: 0;
}

.room-input {
    padding: 12px 14px;
    font-size: 16px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--text-primary);
    box-sizing: border-box;
    font-family: inherit;
    transition: border-color 0.15s;
}

.room-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.room-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.lobby-status {
    margin-top: 12px;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

.lobby-status.info { background: rgba(129,182,76,0.15); color: var(--accent-color); }
.lobby-status.error { background: rgba(229,92,92,0.15); color: #e55c5c; }
.lobby-status.success { background: rgba(129,182,76,0.15); color: var(--accent-color); }


/* 1-2. 로비 (Waiting Room) - 가볍고 직관적 */
.waiting-room {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2500;
    overflow-y: auto;
    padding: 20px;
}

.waiting-room-container {
    width: 100%;
    max-width: 320px;
    margin: auto;
}

.lobby-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.exit-room-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    opacity: 0.7;
}
.exit-room-btn:hover { opacity: 1; }

.room-code-row {
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-color);
    letter-spacing: 3px;
    cursor: pointer;
    font-family: ui-monospace, monospace;
}
.room-code-row:hover { color: var(--accent-hover); }

.refresh-lobby-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    opacity: 0.6;
}
.refresh-lobby-btn:hover { opacity: 1; }
.refresh-lobby-btn.hidden { display: none !important; }

.players-row {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.player-slot {
    flex: 1;
    padding: 12px 16px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.player-slot .player-name {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.player-slot .player-status {
    font-size: 12px;
    color: var(--text-secondary);
}
.player-slot .player-status.ready { color: var(--accent-color); }

.settings-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.setting-inline {
    flex: 1;
}

.setting-inline .setting-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: block;
}

.setting-inline .radio-group {
    display: flex;
    gap: 4px;
}
.setting-inline .radio-label {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
}
.setting-inline .radio-label input { display: none; }
.setting-inline .radio-label:has(input:checked) {
    border-color: var(--accent-color);
}

/* Color 선택: W=밝게, B=어둡게 - 선택 시 공통 초록 테두리 */
.radio-group .radio-label:has(#side-white) { background: #e8e8e6; color: #333; }
.radio-group .radio-label:has(#side-white):has(input:checked) { border-color: var(--accent-color); background: #f5f5f3; }
.radio-group .radio-label:has(#side-black) { background: #2d2d2b; color: #e8e8e6; }
.radio-group .radio-label:has(#side-black):has(input:checked) { border-color: var(--accent-color); background: #3d3d3b; }
.radio-group .radio-label:has(#side-random) { background: var(--input-bg); color: var(--text-secondary); }
.radio-group .radio-label:has(#side-random):has(input:checked) { border-color: var(--accent-color); color: var(--accent-color); }

.setting-inline .time-inputs {
    display: flex;
    align-items: center;
    gap: 4px;
}
.setting-inline .time-inputs input {
    width: 48px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 14px;
    text-align: center;
}
.setting-inline .time-inputs input:focus { outline: none; border-color: var(--accent-color); }
.setting-inline .time-inputs span { font-size: 12px; color: var(--text-secondary); }
.setting-inline .time-inputs .time-unit { margin-left: 2px; }

.settings-note {
    font-size: 12px;
    color: var(--text-secondary);
    margin: -8px 0 16px 0;
}

.start-btn {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    background-color: var(--accent-color);
    color: #fff;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s;
}

.start-btn:hover:not(:disabled) { background-color: var(--accent-hover); }
.start-btn:disabled {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
    cursor: not-allowed;
}

.start-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 8px;
}


/* 1-3. 게임 화면 (보드 컨테이너) */
.board-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 10px; /* 타이머와 보드 간격 좁힘 */
    margin-top: 20px;
}

.board-container.flipped #board-frame { transform: rotate(180deg); }
.board-container.flipped .piece-img { transform: rotate(180deg); }
.board-container.flipped .my-piece:hover .piece-img { transform: rotate(180deg); }

/* 체스판 액자 */
#board-frame {
    display: inline-block;
    border-radius: 4px;
    background: transparent;
    border: none;
    padding: 0;
}

/* 턴 표시 테두리 제거 */
#board-frame.turn-white { border: none; }
#board-frame.turn-black { border: none; }

/* 체스판 */
.chess-board { border-collapse: collapse; margin: 0; }
.chess-board td {
    width: 75px; height: 75px;
    padding: 0; border: none;
    position: relative;
    vertical-align: bottom;
}

/* 체스판 색상 (Dark Theme Standard) */
.white-square { background-color: #ebecd0; } /* 밝은 칸 (약간 톤다운) */
.black-square { background-color: #739552; } /* 어두운 칸 (녹색) */

/* 좌표 스타일 */
.coord-rank, .coord-file {
    position: absolute;
    font-size: 14px;
    font-weight: 600;
    pointer-events: none;
    user-select: none;
    font-family: 'Noto Sans KR', sans-serif;
    z-index: 10;
}

.coord-rank { top: 2px; left: 3px; }
.coord-file { bottom: 2px; right: 3px; }

/* 좌표 색상 (대비감 확보) */
.white-square .coord-rank, .white-square .coord-file { color: #739552; }
.black-square .coord-rank, .black-square .coord-file { color: #ebecd0; }

.board-container.flipped .coord-rank,
.board-container.flipped .coord-file {
    transform: rotate(180deg);
}

.board-container.flipped .coord-rank {
    top: auto; left: auto;
    bottom: 2px; right: 3px;
}

.board-container.flipped .coord-file {
    bottom: auto; right: auto;
    top: 2px; left: 3px;
}

/* 기물 이미지 (SVG 90x90→75px 축소로 선명도 개선) */
.piece-img {
    width: 100%; height: 100%;
    display: block; cursor: grab; /* 손바닥 커서 */
    /* 그림자 제거 → 보드에 붙어 보이게 (체스닷컴 스타일) */
    /* 브라우저 기본 드래그 방지 */
    -webkit-user-drag: none;
    user-select: none;
}

.piece-img:active {
    cursor: grabbing; /* 잡은 손바닥 */
}

/* 드래그 중인 유령 기물 */
.dragging-ghost {
    position: fixed;
    pointer-events: none; /* 클릭 통과 */
    z-index: 9999;
    width: 75px; /* JS에서 동적으로 설정하지만 기본값 */
    height: 75px;
    opacity: 1.0;
}

.my-piece:hover .piece-img {
    transform: none;
}

/* 선택 및 이동 표시 */
.selected {
    /* 체스닷컴 스타일: 아주 선명한 형광 노랑 (0.8) */
    background-color: rgba(247, 247, 105, 0.8) !important; 
}

/* 체크 시 킹 칸 배경 강조 */
.square-in-check {
    background-color: rgba(255, 100, 100, 0.7) !important;
}

.last-move {
    /* 선택된 기물과 동일한 색상 (0.8) */
    background-color: rgba(247, 247, 105, 0.8) !important;
}

/* 이동 가능 위치 (검은 점) */
.target-square[data-type="NONE"]::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 24px; height: 24px;
    background-color: rgba(0, 0, 0, 0.2); /* 반투명 검정 */
    border-radius: 50%;
}

/* 기물 잡을 때 (링) - 또는 강제 공격 표시(앙파상) */
.target-square:not([data-type="NONE"])::after,
.target-capture::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    box-sizing: border-box;
    border: 6px solid rgba(0, 0, 0, 0.2);
    border-radius: 50%;
}

/* 앙파상 등 특수 공격 시 기존 점(이동) 스타일 덮어쓰기 위해 none 처리 */
.target-capture[data-type="NONE"]::after {
    background-color: transparent !important;
    width: 100% !important; height: 100% !important;
    transform: none !important;
    top: 0 !important; left: 0 !important;
    border-radius: 50% !important;
    /* 테두리만 보이게 */
    border: 6px solid rgba(0, 0, 0, 0.2) !important;
}

/* 타이머 */
.timer-container {
    width: auto;
    display: flex;
    justify-content: center;
}

.timer {
    background: #262421; /* 기본: 어두운 배경 */
    border: none;
    border-radius: 4px;
    padding: 5px 15px;
    min-width: 140px;
    height: 45px;
    display: flex;
    justify-content: center; /* 가운데 정렬 */
    align-items: center;
    box-shadow: none;
    transition: all 0.2s ease;
    opacity: 0.6; /* 비활성 시 흐리게 */
}

.timer.active {
    background-color: #fff; /* 활성: 밝은 흰색 */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    opacity: 1;
}

/* 활성 상태일 때만 글자색 검정으로 */
.timer.active .timer-value {
    color: #333 !important;
}

.timer.warning {
    background-color: #4a1c1c; /* 어두운 붉은색 */
    opacity: 1;
}
.timer.warning.active {
    background-color: #ffcccc; /* 활성 시 밝은 붉은색 */
}

.timer-label { display: none; }

.timer-value {
    font-size: 24px;
    color: #fff; /* 기본 글자색 흰색 */
    font-weight: 700;
    font-family: 'Roboto Mono', monospace;
    width: 100%;
    text-align: center;
}

.timer.warning .timer-value { color: #ff5555; }
.timer.warning.active .timer-value { color: #d63031; }

/* 유틸리티 */
.hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0;
    pointer-events: none;
    z-index: -9999;
}

/* 6. 프로모션 오버레이 */
.promotion-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 5000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.promotion-choices {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    padding: 20px;
    gap: 10px;
    display: flex;
}

.promotion-piece {
    width: 80px; height: 80px;
    background: #3d3b38;
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
}

.promotion-piece:hover {
    background: #55514d;
}

.promotion-piece img { width: 90%; height: 90%; }

.promotion-cancel {
    background: #4a1c1c;
    color: #ff7675;
    font-size: 24px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    border-radius: 4px;
    cursor: pointer;
}
.promotion-cancel:hover { background: #662222; }

/* 7. 게임 종료 모달 */
#game-over-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 6000;
}

.game-over-content {
    background-color: var(--card-bg);
    color: var(--text-primary);
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    text-align: center;
    min-width: 300px;
}
.restart-btn {
    margin-top: 30px;
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
}
.restart-btn:hover {
    background-color: var(--accent-hover);
}

/* 8. 닉네임 변경 모달 */
#nickname-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 4000;
}

.nickname-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    text-align: center;
    min-width: 300px;
    border: 1px solid var(--border-color);
}

.modal-title {
    color: var(--text-primary);
    margin: 0 0 20px 0;
    font-weight: 700;
    font-size: 20px;
}

.nickname-input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 20px;
    box-sizing: border-box;
    font-family: inherit;
}

.nickname-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.modal-btn {
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.modal-btn.save {
    background-color: var(--accent-color);
    color: #fff;
}
.modal-btn.save:hover { background-color: var(--accent-hover); }

.modal-btn.cancel {
    background-color: #45413e;
    color: var(--text-secondary);
}
.modal-btn.cancel:hover { background-color: #55514d; color: var(--text-primary); }

/* 🆕 게임 오버 모달 버튼 그룹 */
.game-over-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.game-over-actions .restart-btn {
    margin-top: 0; /* flex 사용 시 마진 제거 */
    flex: 1;
}

/* 🆕 나가기 버튼 (LEAVE) */
.exit-btn {
    background-color: #45413e;
    color: var(--text-secondary);
    border: none;
    border-radius: 4px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    flex: 1;
    transition: all 0.2s;
}

.exit-btn:hover {
    background-color: #55514d;
    color: var(--text-primary);
}