@charset "UTF-8";
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

/* --- [1. 공통 변수 및 기본 설정] --- */
:root {
    --retro-bg: #000000;
    --retro-text: #33ff00;
    --retro-accent: #ff00ff;
    --retro-border: 4px;
    --cell-size: 35px;
    --board-size: calc(var(--cell-size) * 10 + 16px);
}

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

body {
    font-family: 'Press Start 2P', cursive, monospace;
    background-color: var(--retro-bg);
    color: var(--retro-text);
    line-height: 1.5;
    text-transform: uppercase;
    text-shadow: 2px 2px 4px rgba(51, 255, 0, 0.3);
    overflow-x: hidden;
}

/* CRT 모니터 스캔라인 효과 */
body::before {
    content: ""; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: repeating-linear-gradient(0deg, rgba(0,0,0,0.2) 0px, rgba(0,0,0,0.2) 1px, transparent 1px, transparent 2px);
    pointer-events: none; z-index: 9999;
}

a { text-decoration: none; color: inherit; }

/* --- [2. 헤더 & 푸터 (index.html)] --- */
header {
    border-bottom: var(--retro-border) solid var(--retro-text);
    padding: 2rem 1rem; text-align: center;
    box-shadow: 0px 5px 0px var(--retro-accent);
}
header h1 {
    font-size: 2rem; margin-bottom: 1rem; color: var(--retro-accent);
    text-shadow: 3px 3px 0px #fff, 5px 5px 0px rgba(0,0,0,0.5);
}
header p { font-size: 0.8rem; }
footer { text-align: center; padding: 30px; margin-top: 50px; font-size: 0.6rem; color: #555; }
.version-badge {
    position: fixed; left: 12px; bottom: 12px; z-index: 9998;
    font-size: 0.5rem; color: var(--retro-text);
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid var(--retro-text);
    padding: 3px 5px;
    box-shadow: 2px 2px 0px var(--retro-accent);
}

/* --- [3. 메인 카드 그리드 (index.html)] --- */
main { max-width: 900px; margin: 50px auto; padding: 0 20px; }
.game-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 40px; }
.game-card {
    display: block; border: var(--retro-border) solid var(--retro-text);
    background-color: #111; box-shadow: 5px 5px 0px var(--retro-accent);
    transition: all 0.1s; padding: 5px;
}
.game-card:hover {
    background-color: var(--retro-accent); color: var(--retro-bg);
    border-color: var(--retro-accent); box-shadow: -5px -5px 0px var(--retro-text);
    transform: translate(5px, 5px);
}
.card-icon {
    height: 120px; display: flex; align-items: center; justify-content: center;
    font-size: 3rem; border-bottom: 2px dashed var(--retro-text); background-color: #000;
}
.game-card:hover .card-icon { background-color: var(--retro-accent); color: var(--retro-bg); border-color: var(--retro-bg); }
.card-content { padding: 20px; }
.card-title { font-size: 1.2rem; margin-bottom: 15px; color: var(--retro-accent); }
.game-card:hover .card-title { color: var(--retro-bg); }
.card-desc { font-size: 0.7rem; margin-bottom: 20px; line-height: 1.8; }
.tag {
    display: inline-block; padding: 5px 10px;
    background-color: var(--retro-text); color: var(--retro-bg);
    font-size: 0.6rem; border: 2px solid var(--retro-text); margin-right: 5px;
}
.game-card:hover .tag { background-color: var(--retro-bg); color: var(--retro-text); }
.game-card.disabled { opacity: 0.5; cursor: default; box-shadow: none; border-color: #555; color: #555; }
.game-card.disabled:hover { background-color: #111; color: #555; border-color: #555; box-shadow: none; transform: none; }

/* --- [4. 게임 페이지 공통 (minesweeper.html)] --- */
.game-body {
    display: flex; flex-direction: column; align-items: center; margin-top: 20px;
    padding-bottom: 50px; touch-action: manipulation;
}

.audio-overlay {
    position: fixed; inset: 0; z-index: 9998;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    color: var(--retro-text);
    font-size: 0.9rem;
    text-shadow: 0 0 10px var(--retro-text);
    cursor: pointer;
}
.audio-overlay.hidden { opacity: 0; transition: opacity 0.2s ease; }
.game-body h1 {
    color: var(--retro-accent); margin-bottom: 20px; font-size: 1.2rem;
    text-shadow: 3px 3px 0px #fff, 5px 5px 0px rgba(0,0,0,0.5); text-align: center;
}

/* 모바일 컨트롤 버튼 */
.controls-area {
    display: flex; gap: 10px; margin-bottom: 20px;
    width: 100%; justify-content: center; max-width: var(--board-size);
}
.mode-btn {
    flex: 1; padding: 15px 10px; text-align: center;
    border: var(--retro-border) solid var(--retro-text);
    background-color: var(--retro-bg); color: #555;
    cursor: pointer; font-size: 0.7rem; transition: all 0.1s;
}
.mode-btn.active {
    background-color: var(--retro-text); color: var(--retro-bg);
    box-shadow: 0 0 10px var(--retro-text);
}
.mode-btn:active { transform: scale(0.95); }

.status { margin-bottom: 20px; font-size: 0.7rem; text-align: center; min-height: 1.5rem; line-height: 1.5; }
#status { margin-top: 6px; }
#timer { color: var(--retro-text); }
.hud-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: var(--board-size);
    margin-bottom: 8px;
}
.hud-row .status { margin-bottom: 0; }
#mine-count {
    color: var(--retro-accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    line-height: 1;
}
.emoji-shift { display: inline-block; transform: translateY(-15%); }
#mine-count-icon {
    color: var(--retro-accent);
    text-shadow: 0 0 8px var(--retro-accent);
    filter: drop-shadow(0 0 6px var(--retro-accent));
}
#mine-count-value { color: #fff; }

/* 게임판 디자인 */
#game-board {
    display: grid;
    grid-template-columns: repeat(10, var(--cell-size));
    gap: 0px;
    background-color: var(--retro-text);
    padding: 4px;
    border: var(--retro-border) solid var(--retro-text);
    box-shadow: 5px 5px 0px var(--retro-accent);
    margin-bottom: 10px;
}

/* 칸 스타일 */
.cell {
    width: var(--cell-size); height: var(--cell-size);
    background-color: #333;
    display: flex; align-items: center; justify-content: center;
    font-weight: bold; cursor: pointer; user-select: none;
    font-size: 12px; border: 3px outset #555;
}
.cell:hover { background-color: #444; }

.cell.revealed {
    background-color: #000; border: 1px solid #111;
    color: var(--retro-text);
}
.cell.pressed {
    background-color: var(--retro-text) !important;
    color: var(--retro-bg) !important;
    border: 1px solid var(--retro-text) !important;
}
.cell.mine { background-color: var(--retro-accent) !important; color: #fff !important; border: 1px solid var(--retro-accent); }
.cell.flag { color: var(--retro-accent); text-shadow: 1px 1px 0 #000; }

.num-1 { color: #00ffff !important; }
.num-2 { color: #ffff00 !important; }
.num-3 { color: #ff0000 !important; }
.num-4 { color: #ff00ff !important; }

.game-btn {
    margin-top: 8px; padding: 15px 30px;
    font-family: 'Press Start 2P', cursive; font-size: 12px;
    cursor: pointer;
    background-color: var(--retro-text); color: var(--retro-bg);
    border: var(--retro-border) solid var(--retro-text);
    box-shadow: 5px 5px 0px var(--retro-accent);
}
.game-btn:hover {
    background-color: var(--retro-accent); color: var(--retro-text);
    border-color: var(--retro-accent); box-shadow: -3px -3px 0px var(--retro-text);
    transform: translate(3px, 3px);
}
.back-link { margin-top: 20px; font-size: 0.7rem; color: #555; text-decoration: none; }
.back-link:hover { color: var(--retro-text); text-decoration: underline; }

/* --- [5. 애니메이션 및 404 페이지] --- */
@keyframes blinker { 50% { opacity: 0; } }
.blink-text, .blink {
    animation: blinker 0.8s linear infinite;
    color: var(--retro-accent) !important;
    text-shadow: 0 0 10px var(--retro-accent);
}

/* 404 전용 스타일 */
.body-404 {
    justify-content: center; /* 수직 중앙 정렬 */
    height: 100vh;
    margin-top: 0;
    overflow: hidden;
}

.error-code {
    font-size: 5rem; color: var(--retro-accent);
    text-shadow: 4px 4px 0px #fff;
    margin-bottom: 20px; position: relative;
}

.error-msg {
    font-size: 1rem; line-height: 2; text-align: center;
    margin-bottom: 40px; color: var(--retro-text);
}

/* 지직거리는 효과 (Glitch) */
@keyframes glitch {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
    100% { transform: translate(0); }
}
.glitch-effect {
    animation: glitch 0.3s cubic-bezier(.25, .46, .45, .94) both infinite;
}
/* --- [6. 뱀 게임 (SNAKE) 전용 스타일] --- */

/* 뱀 게임판 (20x20 격자) */
#snake-board {
    display: grid;
    grid-template-columns: repeat(20, 15px); /* 칸 크기를 조금 작게 (15px) */
    grid-template-rows: repeat(20, 15px);
    gap: 1px;
    background-color: #111;
    border: var(--retro-border) solid var(--retro-text);
    box-shadow: 0 0 15px var(--retro-text);
    margin: 20px auto;
}

/* 뱀과 먹이 스타일 */
.snake-cell { width: 100%; height: 100%; background-color: #222; }
.snake-body { background-color: var(--retro-text); box-shadow: 0 0 5px var(--retro-text); }
.snake-head { background-color: #fff; box-shadow: 0 0 8px #fff; } /* 머리는 흰색으로 강조 */
.snake-food { 
    background-color: var(--retro-accent); 
    box-shadow: 0 0 8px var(--retro-accent);
    border-radius: 50%; /* 먹이는 동그랗게 */
    animation: blinker 0.5s infinite alternate;
}

/* 모바일용 D-Pad (방향키) */
.d-pad {
    display: grid;
    grid-template-columns: 60px 60px 60px;
    grid-template-rows: 50px 50px;
    gap: 5px;
    margin-bottom: 20px;
}
.d-btn {
    background-color: #222;
    border: 2px solid var(--retro-text);
    color: var(--retro-text);
    font-size: 1.5rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    border-radius: 5px;
    user-select: none;
}
.d-btn:active { background-color: var(--retro-text); color: #000; }
.d-up { grid-column: 2; grid-row: 1; }
.d-left { grid-column: 1; grid-row: 2; }
.d-down { grid-column: 2; grid-row: 2; }
.d-right { grid-column: 3; grid-row: 2; }