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

:root {
    --grid-cell-size: 130px;
    --card-height: 180px;
    --grid-gap: 20px;
    --tableau-width: 1030px;
    --top-area-height: 190px;
    --top-area-gap: 120px;
    --waste-card-offset: 25px;
    --font-size-large: 2.5rem;
    --font-size-medium: 1.1rem;
    --padding-base: 10px;
    --border-radius: 12px;
    --back-btn-padding-h: 15px;
    --back-btn-padding-v: 10px;
    --game-header-padding: 20px;
    --game-info-gap: 30px;
    --info-padding-h: 15px;
    --info-padding-v: 8px;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: linear-gradient(135deg, #0f4c29 0%, #2d5a3d 50%, #1a4c37 100%);
    min-height: 100vh;
    color: white;
    overflow-x: auto;
    padding: var(--padding-base);
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 모바일 가로 방향 제한 */
.mobile-landscape-notice {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.notice-content {
    text-align: center;
    color: white;
    padding: var(--padding-base);
}

.rotate-icon {
    font-size: 3rem;
    margin-bottom: var(--padding-base);
    animation: rotate 2s ease-in-out infinite;
}

.notice-content p {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0;
}

@keyframes rotate {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(90deg); }
    75% { transform: rotate(90deg); }
}

@media (max-width: 768px) and (orientation: portrait) {
    .mobile-landscape-notice {
        display: flex;
    }
    
    .container {
        display: none;
    }
}



.back-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: var(--back-btn-padding-v) var(--back-btn-padding-h);
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.game-header {
    width: 100%;
    max-width: var(--tableau-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--game-header-padding);
    margin-bottom: var(--padding-base);
}

.game-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--padding-base);
}

.game-title {
    font-size: var(--font-size-large);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin: 0;
}

.game-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--game-info-gap);
    font-size: var(--font-size-medium);
    flex-wrap: wrap;
}

.score, .time, .moves {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--info-padding-v) var(--info-padding-h);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.score.score-update {
    animation: scoreUpdate 0.5s ease-out;
}

@keyframes scoreUpdate {
    0% { transform: scale(1); background: rgba(255, 255, 255, 0.1); }
    50% { transform: scale(1.1); background: rgba(255, 215, 0, 0.3); }
    100% { transform: scale(1); background: rgba(255, 255, 255, 0.1); }
}

.game-container {
    max-width: var(--tableau-width);
    margin: 0 auto;
    width: 100%;
}

.game-area {
    width: 100%;
    max-width: var(--tableau-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

.top-area {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 20px;
    height: var(--top-area-height);
    width: var(--tableau-width);
    margin-left: auto;
    margin-right: auto;
    gap: var(--top-area-gap);
}

.deck-area {
    display: flex;
    gap: var(--grid-gap);
}

.foundation-area {
    display: flex;
    gap: var(--grid-gap);
}

.tableau-area {
    display: flex;
    gap: var(--grid-gap);
    justify-content: flex-start;
    min-height: 500px;
    width: var(--tableau-width);
    margin: 0 auto;
}

.card-slot {
    width: var(--grid-cell-size);
    height: var(--card-height);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

#waste {
    width: 180px; /* 3장 겹쳐서 표시할 공간 확보 */
}

.card-slot:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.2);
}

/* 모바일 터치 시 파란색 형광 제거 */
.card-slot {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 카드가 있는 슬롯에서는 터치 드래그 허용 */
.card-slot:has(.card) {
    -webkit-touch-callout: auto;
    -webkit-user-select: auto;
    user-select: auto;
}

#stock:empty:hover {
    border-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
}

.card-slot.highlight {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.2);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.foundation.drag-over {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.2);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.column {
    width: var(--grid-cell-size);
    min-height: var(--card-height);
    position: relative;
}

.column.empty {
    border: 2px dashed rgba(255, 255, 255, 0.4);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.05);
    height: var(--card-height);
    max-height: var(--card-height);
}

.column.empty:hover {
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.1);
}

.column.empty.drag-over {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.2);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.card {
    width: var(--grid-cell-size);
    height: var(--card-height);
    border-radius: var(--border-radius);
    position: absolute;
    cursor: pointer;
    transition: all 0.3s ease-out;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    border: none;
    background: transparent;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    font-size: 1.2rem;
    font-weight: bold;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.card:hover:not(.face-down) {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    z-index: 100;
}

.card.dragging {
    transform: rotate(5deg) scale(1.05);
    z-index: 1000;
    opacity: 0.8;
    filter: brightness(1.1);
}

/* 드래그 프리뷰 스타일 */
.drag-preview {
    position: fixed !important;
    pointer-events: none !important;
    z-index: 10000 !important;
    opacity: 0.8 !important;
    transform: rotate(5deg) scale(1.05) !important;
    transition: none !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3) !important;
    filter: brightness(1.1) !important;
}

.card.animating {
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 200;
}

.card.flipping {
    transform: rotateY(180deg);
    transition: transform 0.3s;
}

.card.flipped {
    transform: rotateY(0deg);
    transition: transform 0.3s;
}

.card.auto-complete {
    transition: all 0.3s ease-out;
    z-index: 2000;
}

.card.winning {
    animation: cardCelebration 2s ease-out;
}

@keyframes cardCelebration {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
    100% { transform: translateY(0) rotate(360deg); }
}

.card.score-popup {
    animation: scoreFloatUp 1s ease-out forwards;
}

@keyframes scoreFloatUp {
    0% { transform: translateY(0) scale(1); opacity: 1; }
    100% { transform: translateY(-30px) scale(1.2); opacity: 0; }
}

.card-stack {
    position: relative;
}

.card-stack .card {
    transition: all 0.3s ease-out;
}

.card.move-animation-normal {
    transition: all 0.4s ease-out;
    z-index: 1000;
}

.card.move-animation-fast {
    transition: all 0.15s ease-out;
    z-index: 1000;
}

.card.face-down {
    background: transparent;
    color: white;
    justify-content: center;
    font-size: 2rem;
}

.card.red {
    color: #d32f2f;
}

.card.black {
    color: #000;
}

.card-number {
    font-size: 0.8rem;
    font-weight: bold;
}

.card-suit {
    font-size: 1.2rem;
}

.card-center {
    font-size: 2rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.controls {
    display: flex;
    gap: var(--grid-gap);
}

.btn {
    background: linear-gradient(45deg, #9B59B6, #8E44AD);
    border: none;
    padding: var(--info-padding-v) var(--info-padding-h);
    color: white;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(155, 89, 182, 0.4);
}

.win-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.win-content {
    background: linear-gradient(135deg, #2d5a3d, #0f4c29);
    padding: clamp(20px, 8vw, 40px);
    border-radius: var(--border-radius);
    text-align: center;
    border: 2px solid #ffd700;
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.win-title {
    font-size: 3rem;
    margin-bottom: var(--padding-base);
    color: #ffd700;
}

.win-stats {
    font-size: 1.2rem;
    margin: var(--padding-base) 0;
    line-height: 1.6;
}

/* 카드 이미지 지원 */
.card.with-image {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.card.with-image .card-content,
.card.with-image .rank,
.card.with-image .suit,
.card.with-image .card-suits {
    display: none;
}

.card.face-down.with-image {
    background-image: url('./cards/back.png');
}

/* 유연한 반응형 디자인 - 고정 픽셀 값 사용 */
.back-btn {
    font-size: 1rem;
}

.controls {
    gap: 12px;
}

.btn {
    font-size: 0.9rem;
}

/* 반응형 디자인 - 4x4 퍼즐과 동일한 방식 */
@media (max-width: 1200px) {
    :root {
        --grid-cell-size: 110px;
        --card-height: 152px;
        --grid-gap: 19px;
        --tableau-width: 900px;
        --top-area-height: 160px;
        --top-area-gap: 102px; /* 120px * 0.874 = 104.88px → 104px */
        --waste-card-offset: 22px; /* 25px * 0.874 = 21.85px → 22px */
        --font-size-large: 2rem;
        --font-size-medium: 1rem;
        --border-radius: 10px;
    }
    
    #waste {
        width: 157px; /* 180px * 0.874 = 157.32px → 157px */
    }
    
    .top-area {
        margin-bottom: 18px;
    }
    

}

@media (max-width: 900px) {
    :root {
        --grid-cell-size: 90px;
        --card-height: 124px;
        --grid-gap: 16px;
        --tableau-width: 750px;
        --top-area-height: 140px;
        --top-area-gap: 81px; /* 120px * 0.728 = 87.36px → 86px */
        --waste-card-offset: 18px; /* 25px * 0.728 = 18.2px → 18px */
        --font-size-large: 1.8rem;
        --font-size-medium: 0.9rem;
        --border-radius: 8px;
    }
    
    #waste {
        width: 131px; /* 180px * 0.728 = 131.04px → 131px */
    }
    
    .top-area {
        margin-bottom: 16px;
    }
}

@media (max-width: 768px) {
    :root {
        --grid-cell-size: 70px;
        --card-height: 96px;
        --grid-gap: 13px;
        --tableau-width: 580px;
        --top-area-height: 120px;
        --top-area-gap: 67px; /* 120px * 0.563 = 67.56px → 67px */
        --waste-card-offset: 14px; /* 25px * 0.563 = 14.075px → 14px */
        --font-size-large: 1.5rem;
        --font-size-medium: 0.8rem;
        --padding-base: 8px;
        --border-radius: 8px;
    }
    
    #waste {
        width: 101px; /* 180px * 0.563 = 101.34px → 101px */
    }
    
    .top-area {
        margin-bottom: 15px;
    }
    
    .tableau-area {
        min-height: 400px;
    }
    

}

@media (max-width: 600px) {
    :root {
        --grid-cell-size: 60px;
        --card-height: 82px;
        --grid-gap: 11px;
        --tableau-width: 480px;
        --top-area-height: 100px;
        --top-area-gap: 55px; /* 120px * 0.466 = 55.92px → 55px */
        --waste-card-offset: 12px; /* 25px * 0.466 = 11.65px → 12px */
        --font-size-large: 1.3rem;
        --font-size-medium: 0.7rem;
        --border-radius: 6px;
    }
    
    #waste {
        width: 84px; /* 180px * 0.466 = 83.88px → 84px */
    }
    
    .top-area {
        margin-bottom: 12px;
    }
    
    .tableau-area {
        min-height: 300px;
    }
    

}