:root {
    --lilac-light: #e9d5ff;
    --lilac-medium: #c084fc;
    --lilac-dark: #7e22ce;
    --night-bg: #080c1d;
    --glass-bg: rgba(8, 12, 29, 0.4);
    --glass-border: rgba(233, 213, 255, 0.15);
    --text-color: #f3e8ff;
}

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

body {
    background-color: var(--night-bg);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    /* Custom Heart Cursor */
    cursor: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 24 24' fill='%23c084fc'><path d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/></svg>") 14 14, auto;
}

/* Ambient Night Gradient Background */
#bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #111a3a 0%, #080c1d 60%, #03040a 100%);
    z-index: -2;
}

/* Canvas styling */
#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Glassmorphism UI Overlays */
.ui-container {
    position: absolute;
    z-index: 10;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    padding: 2.5rem;
    justify-content: space-between;
}

header {
    pointer-events: auto;
    max-width: 500px;
    animation: fadeInDown 1s ease-out;
}

h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 30%, #e9d5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(192, 132, 252, 0.25);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 0.95rem;
    color: #c084fc;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.music-control {
    position: absolute;
    top: 7rem;
    right: 2.5rem;
    z-index: 12;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(8, 12, 29, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: #c084fc;
    text-transform: uppercase;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 24 24' fill='%23c084fc'><path d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/></svg>") 14 14, pointer;
    user-select: none;
}

.music-control:hover {
    border-color: rgba(192, 132, 252, 0.35);
    box-shadow: 0 8px 30px rgba(192, 132, 252, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.music-control:active {
    transform: translateY(0);
}

.music-control.playing {
    border-color: rgba(167, 139, 250, 0.4);
    box-shadow: 0 0 25px rgba(167, 139, 250, 0.3);
}

.music-icon {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.music-icon svg {
    width: 20px;
    height: 20px;
    fill: #c084fc;
    transition: all 0.3s ease;
}

.music-control.playing .music-icon svg {
    fill: #a78bfa;
}

/* Animated equalizer bars when playing */
.eq-bars {
    display: none;
    align-items: center;
    gap: 2px;
    height: 16px;
}

.music-control.playing .eq-bars {
    display: flex;
}

.music-control.playing .music-label-play {
    display: none;
}

.music-control:not(.playing) .music-label-pause {
    display: none;
}

.eq-bar {
    width: 2.5px;
    background: linear-gradient(to top, #c084fc, #a78bfa);
    border-radius: 2px;
    animation: eqWave 0.8s ease-in-out infinite alternate;
}

.eq-bar:nth-child(1) { height: 8px; animation-delay: 0s; }
.eq-bar:nth-child(2) { height: 12px; animation-delay: 0.15s; }
.eq-bar:nth-child(3) { height: 6px; animation-delay: 0.3s; }
.eq-bar:nth-child(4) { height: 14px; animation-delay: 0.1s; }
.eq-bar:nth-child(5) { height: 9px; animation-delay: 0.25s; }

@keyframes eqWave {
    from {
        transform: scaleY(0.5);
        opacity: 0.6;
    }
    to {
        transform: scaleY(1);
        opacity: 1;
    }
}

.instruction-card {
    pointer-events: auto;
    align-self: flex-start;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 1.5rem 2rem;
    border-radius: 20px;
    max-width: 360px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: fadeInUp 1.2s ease-out;
    margin-top: auto;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Card Footer (music credit + inline lang toggle) --- */
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 0.8rem;
    padding-top: 0.6rem;
    border-top: 1px solid rgba(192, 132, 252, 0.1);
}

.card-footer p {
    margin-top: 0 !important;
    flex: 1;
}

.lang-inline {
    display: flex;
    align-items: center;
    gap: 3px;
    pointer-events: auto;
    cursor: pointer;
    user-select: none;
    flex-shrink: 0;
    padding-left: 8px;
}

.lang-option {
    padding: 2px 5px;
    border-radius: 30px;
    transition: all 0.3s ease;
    color: rgba(192, 132, 252, 0.35);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 1.2px;
}

.lang-option.active {
    color: #c084fc;
    text-shadow: 0 0 10px rgba(192, 132, 252, 0.3);
}

.lang-option:hover {
    color: rgba(192, 132, 252, 0.7);
}

.lang-divider {
    color: rgba(192, 132, 252, 0.25);
    font-weight: 300;
    font-size: 0.65rem;
}

.instruction-card:hover {
    border-color: rgba(192, 132, 252, 0.3);
    box-shadow: 0 15px 35px rgba(192, 132, 252, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.instruction-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.instruction-card h3::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--lilac-medium);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--lilac-medium);
}

.instruction-card p {
    font-size: 0.88rem;
    line-height: 1.5;
    color: #d8b4fe;
    font-weight: 300;
}

/* Interactive status alert */
#status-indicator {
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(8, 12, 29, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: #fca5a5;
    text-transform: uppercase;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.5s ease;
}

#status-indicator.soothed {
    border-color: rgba(167, 139, 250, 0.4);
    box-shadow: 0 0 25px rgba(167, 139, 250, 0.3);
    color: #c084fc;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #ef4444;
    box-shadow: 0 0 8px #ef4444;
    transition: all 0.5s ease;
}

#status-indicator.soothed .indicator-dot {
    background-color: #a78bfa;
    box-shadow: 0 0 12px #a78bfa;
    animation: pulse 1s infinite alternate;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    from {
        transform: scale(0.9);
        opacity: 0.6;
    }
    to {
        transform: scale(1.3);
        opacity: 1;
    }
}

@media (max-width: 600px) {
    .ui-container {
        padding: 1.5rem;
    }
    h1 {
        font-size: 1.8rem;
    }
    #status-indicator {
        top: auto;
        bottom: 1.5rem;
        right: 1.5rem;
    }
    .music-control {
        position: absolute;
        top: auto;
        bottom: 1.5rem;
        right: auto;
        left: 1.5rem;
        padding: 0.45rem 0.9rem;
        font-size: 0.65rem;
    }
    .music-control .eq-bars {
        height: 12px;
    }
    .music-control .eq-bar {
        width: 2px;
    }
    .instruction-card {
        max-width: 100%;
        margin-top: 0;
        margin-bottom: 6rem;
    }
}