:root {
    --bg-color: #1a1a1a;
    --card-bg: rgba(30, 30, 30, 0.8);
    --text-color: #f0e6d2;
    --text-muted-color: #a0aec0;
    --primary-color: #e53e3e;
    --primary-shadow-color: rgba(229, 62, 62, 0.4);
    --secondary-color: #4a5568;
    --secondary-hover-color: #2d3748;
    --input-bg: #2d3748;
    --input-border-color: #4a5568;
    --accent-color: #ffab00;
    --accent-glow-color: #e53e3e;
    --border-color: rgba(255, 171, 0, 0.3);
    --winner-border-color: rgba(255, 171, 0, 0.5);
    --danger-color: #f56565;
    --tag-bg: rgba(74, 85, 104, 0.5);
    --footer-bg: rgba(26, 26, 26, 0.8);
    --claimed-bg: #ffab00;
    --claimed-text: #1a1a1a;
}

/* === 糖果王國主題（已修改以增強對比度）=== */
body.theme-candy {
    --bg-color: #fff0f6;
    --card-bg: rgba(255, 240, 245, 0.85);
    --text-color: #a13d9d; /* ★ 修改：加深的文字顏色 */
    --text-muted-color: #b35698; /* ★ 修改：大幅加深的提示文字顏色 */
    --primary-color: #f75ca9; /* ★ 修改：微調的主按鈕顏色 */
    --primary-shadow-color: rgba(247, 92, 169, 0.4);
    --secondary-color: #ffe4e1;
    --secondary-hover-color: #ffc0cb;
    --input-bg: #fff5f8;
    --input-border-color: #ffc0cb;
    --accent-color: #64b5f6; /* ★ 修改：更清晰的強調藍色 */
    --accent-glow-color: #f75ca9;
    --border-color: rgba(255, 105, 180, 0.3);
    --winner-border-color: rgba(255, 105, 180, 0.5);
    --danger-color: #db7093;
    --tag-bg: rgba(255, 228, 225, 0.8);
    --footer-bg: rgba(255, 240, 245, 0.8);
    --claimed-bg: #ffd700;
    --claimed-text: #8b008b;
}

body.theme-forest {
    --bg-color: #f0f8e8;
    --card-bg: rgba(222, 184, 135, 0.7);
    --text-color: #5c4033;
    --text-muted-color: #8b4513;
    --primary-color: #228b22;
    --primary-shadow-color: rgba(34, 139, 34, 0.4);
    --secondary-color: #f5deb3;
    --secondary-hover-color: #deb887;
    --input-bg: #faf0e6;
    --input-border-color: #d2b48c;
    --accent-color: #ff7f50;
    --accent-glow-color: #228b22;
    --border-color: rgba(139, 69, 19, 0.3);
    --winner-border-color: rgba(139, 69, 19, 0.5);
    --danger-color: #cd5c5c;
    --tag-bg: rgba(245, 222, 179, 0.8);
    --footer-bg: rgba(240, 248, 232, 0.8);
    --claimed-bg: #90ee90;
    --claimed-text: #5c4033;
}

body.theme-sakura {
    --bg-color: #fdf2f8;
    --card-bg: rgba(255, 255, 255, 0.7);
    --text-color: #581c87;
    --text-muted-color: #7e22ce;
    --primary-color: #db2777;
    --primary-shadow-color: rgba(219, 39, 119, 0.4);
    --secondary-color: #f3e8ff;
    --secondary-hover-color: #e9d5ff;
    --input-bg: #faf5ff;
    --input-border-color: #e9d5ff;
    --accent-color: #c026d3;
    --accent-glow-color: #db2777;
    --border-color: rgba(219, 39, 119, 0.3);
    --winner-border-color: rgba(219, 39, 119, 0.5);
    --danger-color: #be185d;
    --tag-bg: rgba(243, 232, 255, 0.8);
    --footer-bg: rgba(253, 242, 248, 0.8);
    --claimed-bg: #facc15;
    --claimed-text: #581c87;
}
body.theme-midnight {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.8);
    --text-color: #e2e8f0;
    --text-muted-color: #94a3b8;
    --primary-color: #38bdf8;
    --primary-shadow-color: rgba(56, 189, 248, 0.4);
    --secondary-color: #334155;
    --secondary-hover-color: #475569;
    --input-bg: #1e293b;
    --input-border-color: #334155;
    --accent-color: #67e8f9;
    --accent-glow-color: #38bdf8;
    --border-color: rgba(56, 189, 248, 0.3);
    --winner-border-color: rgba(56, 189, 248, 0.5);
    --danger-color: #fb7185;
    --tag-bg: rgba(51, 65, 85, 0.8);
    --footer-bg: rgba(15, 23, 42, 0.8);
    --claimed-bg: #facc15;
    --claimed-text: #0f172a;
}

body { font-family: 'Noto Sans TC', sans-serif; background-color: var(--bg-color); color: var(--text-color); background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.05) 1px, transparent 0), radial-gradient(circle at 10px 10px, rgba(255,255,255,0.05) 1px, transparent 0); background-size: 20px 20px; transition: background-color 0.5s ease, color 0.5s ease; }
.izakaya-title { font-family: 'Noto Sans TC', sans-serif; text-shadow: none; color: var(--accent-color); }
.card { background-color: var(--card-bg); backdrop-filter: blur(10px); border: 1px solid var(--border-color); box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37); transition: background-color 0.5s ease, border-color 0.5s ease; }
.btn-primary { background-color: var(--primary-color); color: #fff; transition: all 0.3s ease; box-shadow: 0 4px 15px var(--primary-shadow-color); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-shadow-color); }
.btn-primary:disabled { background-color: var(--secondary-color); cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background-color: var(--secondary-color); color: var(--text-color); transition: all 0.3s ease; }
.btn-secondary:hover { background-color: var(--secondary-hover-color); }
.form-input { background-color: var(--input-bg); border: 1px solid var(--input-border-color); color: var(--text-color); }
.winner-display { min-height: 150px; font-size: 4rem; font-weight: bold; display: flex; align-items: center; justify-content: center; text-align: center; border: 2px dashed var(--winner-border-color); background-color: rgba(0,0,0,0.2); transition: all 0.3s ease; word-break: break-all; }
.winner-reveal { animation: winner-glow 1.5s ease-in-out; }
@keyframes winner-glow { 0% { transform: scale(0.8); opacity: 0.8; } 50% { transform: scale(1.1); opacity: 1; color: var(--accent-color); text-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color); } 100% { transform: scale(1); opacity: 1; } }
.effect-spotlight { animation: spotlight-pulse 2s ease-in-out; }
@keyframes spotlight-pulse { 0% { transform: scale(0.9); color: var(--text-color); text-shadow: 0 0 5px rgba(255,255,255,0.5), 0 0 10px var(--accent-color); } 50% { transform: scale(1.1); color: var(--accent-color); text-shadow: 0 0 20px rgba(255,255,255,1), 0 0 40px var(--accent-color), 0 0 70px var(--accent-glow-color); } 100% { transform: scale(1); color: var(--text-color); text-shadow: 0 0 5px rgba(255,255,255,0.5), 0 0 10px var(--accent-color); } }
@keyframes marquee-effect { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.effect-marquee { animation: marquee-effect 1.2s cubic-bezier(0.25, 1, 0.5, 1); }
#version-modal.is-open { opacity: 1; pointer-events: auto; }
#version-modal.is-open > .modal-content { transform: scale(1); }
.theme-button { width: 24px; height: 24px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; transition: all 0.2s ease-in-out; }
.theme-button.active { border-color: var(--accent-color); transform: scale(1.1); box-shadow: 0 0 10px var(--accent-color); }
.winner-tag { background-color: var(--tag-bg); transition: all 0.3s ease; position: relative; overflow: hidden; }
.winner-tag.claimed { 
    background-color: rgba(0, 0, 0, 0.3) !important; 
    color: #a0aec0 !important; /* text-gray-500 */
    opacity: 0.8;
    transform: scale(0.98);
}
.winner-tag.claimed::after {
    content: '已領';
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%) rotate(-15deg);
    color: #e53e3e; /* Red color */
    border: 2px solid #e53e3e;
    padding: 2px 6px;
    font-size: 0.8rem;
    font-weight: bold;
    border-radius: 4px;
    opacity: 0.8;
    pointer-events: none;
    box-shadow: 0 0 5px rgba(229, 62, 62, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
    z-index: 10;
}
.winner-tag.claimed:hover {
    opacity: 1;
    transform: scale(1);
}
.tab-btn { border-color: transparent; color: var(--text-muted-color); }
.tab-btn.active { border-color: var(--accent-color); color: var(--accent-color); }
.toggle-switch-bg:after { background-color: white; }
input:checked + .toggle-switch-bg { background-color: var(--primary-color); }
.redraw-btn, .donate-btn {
    background: none;
    border: none;
    color: var(--text-muted-color);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0 0.5rem;
    opacity: 0.5;
    transition: all 0.2s ease;
}
.redraw-btn:hover, .donate-btn:hover {
    opacity: 1;
    color: var(--accent-color);
    transform: scale(1.2);
}

#participant-count {
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0 4px;
    border-radius: 4px;
}
#participant-count:hover {
    background-color: rgba(255, 171, 0, 0.1);
    text-shadow: 0 0 8px var(--accent-color);
}

/* Duplicates Modal */
#duplicates-list::-webkit-scrollbar {
    width: 6px;
}
#duplicates-list::-webkit-scrollbar-thumb {
    background-color: var(--secondary-color);
    border-radius: 10px;
}
.duplicate-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}
.duplicate-count {
    background-color: var(--primary-color);
    color: white;
    padding: 0 0.5rem;
    border-radius: 999px;
    font-size: 0.875rem;
}