:root {
    --sakura-bg: #110915;
    --sakura-card: rgba(28, 16, 36, 0.75);
    --sakura-border: rgba(244, 114, 182, 0.2);
    --sakura-pink: #ec4899;
    --sakura-glow: rgba(236, 72, 153, 0.4);
    --custom-bg-img: none;
}

body.theme-obsidian {
    --sakura-bg: #09090b;
    --sakura-card: rgba(18, 18, 22, 0.85);
    --sakura-border: rgba(255, 255, 255, 0.1);
    --sakura-pink: #a855f7;
    --sakura-glow: rgba(168, 85, 247, 0.4);
}

body.theme-monochrome {
    --sakura-bg: #121212;
    --sakura-card: rgba(30, 30, 30, 0.85);
    --sakura-border: rgba(200, 200, 200, 0.2);
    --sakura-pink: #ffffff;
    --sakura-glow: rgba(255, 255, 255, 0.3);
    filter: grayscale(100%);
}

body.theme-ocean {
    --sakura-bg: #031525;
    --sakura-card: rgba(10, 35, 55, 0.8);
    --sakura-border: rgba(56, 189, 248, 0.3);
    --sakura-pink: #38bdf8;
    --sakura-glow: rgba(56, 189, 248, 0.4);
}

body.theme-cyberpunk {
    --sakura-bg: #051a0e;
    --sakura-card: rgba(12, 40, 24, 0.85);
    --sakura-border: rgba(74, 222, 128, 0.3);
    --sakura-pink: #4ade80;
    --sakura-glow: rgba(74, 222, 128, 0.4);
}

body.theme-custom {
    background-image: var(--custom-bg-img) !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

body {
    background-color: var(--sakura-bg);
    color: #fce7f3;
    font-family: 'Zen Maru Gothic', sans-serif;
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(236, 72, 153, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(219, 39, 119, 0.06) 0%, transparent 40%);
    background-attachment: fixed;
    transition: background-color 0.3s ease;
}

.font-jp { font-family: 'Yuji Mai', serif; }

.japanese-watermark {
    position: absolute;
    font-family: 'Yuji Mai', serif;
    color: rgba(244, 114, 182, 0.03);
    user-select: none;
    pointer-events: none;
    z-index: 0;
    line-height: 1;
}

.glass-panel {
    background: var(--sakura-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--sakura-border);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-panel-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-panel-hover:hover {
    border-color: rgba(244, 114, 182, 0.5);
    box-shadow: 0 10px 25px -5px rgba(236, 72, 153, 0.25), 0 8px 10px -6px rgba(236, 72, 153, 0.2);
    transform: translateY(-3px);
}

.pink-glow-text { text-shadow: 0 0 12px rgba(244, 114, 182, 0.6); }

.sakura-container {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 1; overflow: hidden;
}

.petal {
    position: absolute;
    background: linear-gradient(135deg, #fbcfe8, #f472b6);
    border-radius: 150% 0 150% 0;
    opacity: 0.3;
    animation: animate-petal 12s linear infinite;
}

@keyframes animate-petal {
    0% { top: -10%; transform: translateX(0) rotate(0deg); opacity: 0; }
    10% { opacity: 0.4; }
    90% { opacity: 0.4; }
    100% { top: 110%; transform: translateX(120px) rotate(360deg); opacity: 0; }
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.live-dot { animation: pulse-live 2s infinite; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #110915; }
::-webkit-scrollbar-thumb { background: #831843; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #be185d; }

iframe { width: 100%; height: 100%; border: none; }

.mini-player-active {
    position: fixed !important;
    bottom: 20px !important;
    right: 20px !important;
    width: 320px !important;
    height: 180px !important;
    z-index: 9999 !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(236, 72, 153, 0.4) !important;
    border-radius: 1rem !important;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
}

#intro-screen {
    transition: opacity 0.8s ease, visibility 0.8s ease;
}
#intro-screen.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#activity-toast {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
#activity-toast.toast-hidden {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
}