/* Chakra Petch (SIL OFL 1.1, fonts/OFL.txt) — 앱에서도 인터넷 없이 쓰도록 파일로 포함 */
@font-face {
    font-family: 'Chakra Petch';
    src: url('../fonts/chakra-petch-500.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'Chakra Petch';
    src: url('../fonts/chakra-petch-700.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}

/* 네온 디스토피아: 남색 패널 + 시안(기본 강조) · 호박색(크레딧) · 분홍(해킹) */
:root {
    --bg-dark: #07090e;
    --hud-bg: #0f141d;
    --panel-bg: #121926;
    --hud-border: #233042;
    --text-light: #d6e2ef;
    --text-dim: #7d8ea3;
    --accent-color: #19e3ff;
    --accent-dim: rgba(25, 227, 255, 0.35);
    --credit-color: #ffbe45;
    --life-color: #ff4d6a;
    --hack-color: #ff3fd0;
    --danger-color: #ff4d5e;
    --ui-font: 'Chakra Petch', 'Segoe UI', system-ui, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-user-select: none;
    user-select: none;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--ui-font);
    font-weight: 500;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

#game-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    max-width: 800px;
    max-height: 1200px;
    background-color: #0a0e15;
    box-shadow: 0 0 24px rgba(0, 0, 0, 0.9), 0 0 0 1px var(--hud-border);
    position: relative;
}

/* --- 상단 HUD --- */
#top-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: linear-gradient(to bottom, #131b27, var(--hud-bg));
    border-bottom: 1px solid var(--hud-border);
    box-shadow: 0 1px 0 rgba(25, 227, 255, 0.12);
    height: 60px;
    z-index: 10;
}

.hud-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 1.2rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* HUD 아이콘 (인라인 SVG, currentColor 로 칠함) */
.hud-icon {
    width: 1.05em;
    height: 1.05em;
    flex-shrink: 0;
}

.life-item { color: var(--life-color); }
.gold-item { color: var(--credit-color); }
.life-item span, .gold-item span { color: var(--text-light); }

.wave-info {
    color: var(--accent-color);
    font-size: 1.3rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-shadow: 0 0 10px var(--accent-dim);
}

.wave-info span:first-child {
    font-size: 0.75em;
    color: var(--text-dim);
    text-shadow: none;
}

.stage-info {
    color: var(--text-dim);
    font-size: 0.95rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.controls button {
    background-color: #162030;
    color: var(--text-light);
    border: 1px solid var(--hud-border);
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-left: 5px;
    transition: background 0.2s, border-color 0.2s;
}

.controls button:hover {
    background-color: #1d2a3d;
    border-color: var(--accent-dim);
}

#speed-btn {
    color: var(--accent-color);
    min-width: 3em;
}

/* 크레딧 표시 (건설 칸·업그레이드·판매 버튼의 작은 칩 아이콘) */
.cr {
    display: inline-block;
    width: 0.8em;
    height: 0.8em;
    margin-right: 3px;
    vertical-align: -0.05em;
    background: var(--credit-color);
    clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
    box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.35);
}

/* --- 캔버스 영역 --- */
#canvas-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: #0a0e15;
    position: relative;
}

#game-canvas {
    background-color: #141b24;
    box-shadow: 0 0 0 1px var(--hud-border);
    image-rendering: pixelated;
}

#next-wave-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(8, 20, 30, 0.88);
    color: var(--accent-color);
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 10px 20px;
    border: 2px solid var(--accent-color);
    border-radius: 3px;
    cursor: pointer;
    z-index: 5;
    font-size: 1.05rem;
    box-shadow: 0 0 14px var(--accent-dim), inset 0 0 10px rgba(25, 227, 255, 0.15);
    transition: transform 0.1s;
}

#next-wave-btn:active {
    transform: scale(0.95);
}

/* 대포 발사 버튼: 터치 기기에서만 표시, --charge 로 재장전 진행도를 채움 */
#fire-btn {
    display: none;
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 112px;
    height: 112px;
    padding: 0;
    border-radius: 50%;
    border: 3px solid #8fd3ff;
    background: rgba(27, 36, 48, 0.85);
    color: #fff;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 1px;
    font-size: 0.85rem;
    z-index: 5;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.5);
}

/* 조준 테두리 안내선 */
#fire-btn::before {
    content: '';
    position: absolute;
    inset: 9px;
    border-radius: 50%;
    border: 2px dashed rgba(143, 211, 255, 0.35);
    pointer-events: none;
}

/* 가운데 발사 버튼: 재장전 진행도만큼 아래부터 차오름 */
#fire-btn .fire-label {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 52%;
    height: 52%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to top, #8fd3ff var(--charge, 0%), #1b2430 var(--charge, 0%));
    border: 2px solid #8fd3ff;
    text-shadow: 0 1px 2px #000;
    pointer-events: none;
}

/* 테두리 위 조준 손잡이: 대포가 바라보는 방향 */
#fire-btn .aim-knob {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border-radius: 50%;
    background: #8fd3ff;
    box-shadow: 0 0 6px rgba(143, 211, 255, 0.8);
    transform: rotate(var(--aim, -90deg)) translateX(41px);
    pointer-events: none;
}

#fire-btn.ready {
    border-color: #ff8c3c;
}

#fire-btn.ready .fire-label {
    background: #ff8c3c;
    border-color: #ff8c3c;
    color: #000;
    text-shadow: none;
}

/* 다음 발이 해킹탄: 분홍 */
#fire-btn.hack {
    border-color: var(--hack-color);
}

#fire-btn.hack .fire-label {
    border-color: var(--hack-color);
    background: linear-gradient(to top, var(--hack-color) var(--charge, 0%), #2a1028 var(--charge, 0%));
}

#fire-btn.hack.ready .fire-label {
    background: var(--hack-color);
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

#fire-btn.hack .aim-knob,
#fire-btn.hack.ready .aim-knob {
    background: var(--hack-color);
    box-shadow: 0 0 8px rgba(255, 63, 208, 0.9);
}

#fire-btn.ready .aim-knob {
    background: #ff8c3c;
    box-shadow: 0 0 8px rgba(255, 140, 60, 0.9);
}

@media (pointer: coarse) {
    #fire-btn {
        display: block;
    }
}

/* 좁은 화면: 슬롯 6개가 한 줄에 들어가도록 축소 + 터치 지연 제거 */
@media (max-width: 480px) {
    /* 상단 HUD: 한 줄에 맞추고 스테이지 이름만 말줄임 처리 */
    #top-hud {
        padding: 6px 8px;
        gap: 6px;
    }

    .hud-item {
        font-size: 0.95rem;
        gap: 3px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .wave-info {
        font-size: 1rem;
    }

    .stage-info {
        flex: 1 1 0;
        min-width: 0;
        font-size: 0.8rem;
        letter-spacing: 0;
    }

    .stage-info span {
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .controls button {
        padding: 4px 8px;
        margin-left: 3px;
        font-size: 0.85rem;
    }

    #bottom-hud {
        padding: 6px 4px;
        height: 88px;
    }

    .tower-slot {
        flex: 1;
        max-width: 68px;
        width: auto;
        height: 72px;
        margin: 0 2px;
    }

    .tower-icon {
        width: 38px;
        height: 38px;
    }

    .tower-name {
        letter-spacing: 0;
    }
}

#game-canvas,
.tower-slot {
    touch-action: manipulation;
}

.hidden {
    display: none !important;
}

#tower-panel {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background-color: rgba(12, 18, 27, 0.94);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    box-shadow: 0 0 16px rgba(25, 227, 255, 0.2);
    padding: 15px;
    color: #fff;
    z-index: 5;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 150px;
}

#panel-tower-name {
    color: var(--accent-color);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.panel-stats {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.panel-stats span {
    color: var(--text-light);
}

#tower-panel button {
    padding: 6px;
    border: 1px solid transparent;
    border-radius: 3px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: background-color 0.2s, opacity 0.2s;
}

#tower-panel button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: #1b2330 !important;
}

#upgrade-btn { background-color: rgba(25, 227, 255, 0.14); border-color: var(--accent-color); color: var(--accent-color); }
#sell-btn { background-color: rgba(255, 77, 94, 0.1); border-color: rgba(255, 77, 94, 0.6); color: #ff8a96; }
#close-panel-btn { 
    position: absolute; top: 5px; right: 5px; 
    background: none !important; color: var(--text-dim); border: none !important; font-size: 1rem; cursor: pointer;
}

/* --- 하단 HUD --- */
#bottom-hud {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px;
    background: linear-gradient(to top, #0b1018, var(--hud-bg));
    border-top: 1px solid var(--hud-border);
    box-shadow: 0 -1px 0 rgba(25, 227, 255, 0.12);
    height: 100px;
    z-index: 10;
}

.tower-slot {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(to bottom, #151d2a, #0e141e);
    border: 1px solid var(--hud-border);
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.1s, border-color 0.2s, box-shadow 0.2s;
}

.tower-slot:hover {
    transform: translateY(-2px);
    border-color: var(--accent-dim);
}

.tower-slot.selected {
    border-color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-dim), inset 0 0 12px rgba(25, 227, 255, 0.12);
}

.tower-slot[data-type="hack"].selected {
    border-color: var(--hack-color);
    box-shadow: 0 0 12px rgba(255, 63, 208, 0.45), inset 0 0 12px rgba(255, 63, 208, 0.15);
}

.tower-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 2px;
}

.tower-cost {
    font-size: 0.8rem;
    color: var(--credit-color);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.tower-name {
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
}

@media (min-width: 800px) {
    #game-container {
        border-radius: 10px;
        overflow: hidden;
    }
}

/* --- 모드 선택 탭 --- */
#mode-tabs {
    display: flex;
    gap: 8px;
}

.mode-tab {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--hud-border);
    border-radius: 3px;
    background-color: #111823;
    color: var(--text-dim);
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    touch-action: manipulation;
}

.mode-tab.active {
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-dim);
}

.mode-tab[data-mode="NIGHTMARE"].active {
    border-color: var(--danger-color);
    color: var(--danger-color);
    box-shadow: 0 0 10px rgba(255, 77, 94, 0.35);
}

.mode-tab.locked {
    opacity: 0.45;
    cursor: not-allowed;
}

/* --- 모달 영역 --- */
#modal-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(3, 6, 10, 0.82);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal {
    background: linear-gradient(to bottom, #141c29, #0d131c);
    border: 1px solid var(--accent-dim);
    border-radius: 4px;
    box-shadow: 0 0 30px rgba(25, 227, 255, 0.12);
    padding: 20px;
    text-align: center;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal h2 {
    color: var(--accent-color);
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 0 12px var(--accent-dim);
}

.modal p {
    color: var(--text-dim);
}

#game-over-modal h2 {
    color: var(--danger-color);
    text-shadow: 0 0 12px rgba(255, 77, 94, 0.45);
}

.modal-btn {
    padding: 10px;
    background-color: #162030;
    color: var(--text-light);
    border: 1px solid var(--hud-border);
    border-radius: 3px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 1rem;
}

.modal-btn:hover {
    border-color: var(--accent-dim);
}

#next-stage-btn,
#retry-btn {
    background-color: rgba(25, 227, 255, 0.14);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.modal-btn.danger {
    background-color: transparent;
    border-color: rgba(255, 77, 94, 0.5);
    color: #ff8a96;
    font-size: 0.85rem;
}

#stage-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 320px;
    overflow-y: auto;
}

.stage-item {
    background-color: #131b27;
    border: 1px solid var(--hud-border);
    border-left: 3px solid var(--accent-color);
    padding: 10px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.stage-item:hover {
    background-color: #182233;
}

.stage-item.locked {
    border-left-color: var(--hud-border);
}

.stage-item > span:last-child {
    color: var(--accent-color);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.stage-item.locked > span:last-child {
    color: var(--text-dim);
}

/* 별점: 채운 별은 호박색, 빈 별은 어두운 테두리 */
.star {
    display: inline-block;
    width: 1em;
    height: 1em;
    margin: 0 1px;
    vertical-align: -0.12em;
    background: #2a3546;
    clip-path: polygon(50% 0, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.star.on {
    background: var(--credit-color);
}

.stage-item .star {
    font-size: 0.8rem;
}

.stage-item.locked {
    opacity: 0.5;
    cursor: not-allowed;
}

#stars-display {
    font-size: 2.6rem;
    filter: drop-shadow(0 0 8px rgba(255, 190, 69, 0.4));
}