:root {
    --bg-color: #0a0a0a;
    --bg-gradient: radial-gradient(circle at center, #1a1a1a 0%, #0a0a0a 100%);
    --text-color: #ffffff;
    --border-color: #1a1a1a;
    --accent-color: #888888;
    --font-main: 'Outfit', sans-serif;
    --transition-main: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-pop: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.light-mode {
    --bg-color: #f5f5f7;
    --bg-gradient: radial-gradient(circle at center, #ffffff 0%, #e0e0e2 100%);
    --text-color: #0a0a0a;
    --border-color: rgba(0, 0, 0, 0.05);
}

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

body {
    background: var(--bg-gradient);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    transition: background 1.2s var(--transition-main), color 0.8s var(--transition-main);
}

/* Utils */
.hidden { display: none !important; }
.opacity-0 { opacity: 0; pointer-events: none; }

/* Entry Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1.2s var(--transition-main);
}

.entry-content {
    text-align: center;
}

.glitch-text {
    font-size: 4rem;
    font-weight: 600;
    letter-spacing: 0.5rem;
    position: relative;
    margin-bottom: 2rem;
}

#enter-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 1rem 3rem;
    font-family: var(--font-main);
    font-size: 0.8rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
    transition: var(--transition-main);
    pointer-events: auto;
}

#enter-btn:not(:disabled):hover {
    background: var(--text-color);
    color: var(--bg-color);
}

#enter-btn:disabled {
    opacity: 0.5;
    cursor: wait;
}

/* Canvas Background */
#silk-canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    opacity: 0.3;
    pointer-events: none;
}

#celestial {
    position: fixed;
    top: 10%;
    right: 10%;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    z-index: 0;
    transition: all 2.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: blur(1px);
}

.dark-mode #celestial {
    background: #fff;
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.4), inset -10px -10px 20px rgba(0,0,0,0.1);
    transform: translate(0, 0) scale(0.8);
}

.light-mode #celestial {
    background: #ffcc33;
    box-shadow: 0 0 60px rgba(255, 204, 51, 0.6);
    transform: translate(-50px, 30px) scale(1);
}

/* Main Layout */
#app-content {
    position: relative;
    z-index: 10;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 1.5s var(--transition-main);
    background: transparent;
}

.centered-box {
    text-align: center;
    animation: fadeIn 2s var(--transition-main);
}

.profile-container {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin: 0 auto 2rem;
    transition: var(--transition-pop);
}

.profile-container:hover {
    transform: scale(1.05);
    border-color: var(--text-color);
}

#profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1);
}

.info h2 {
    font-weight: 300;
    letter-spacing: 0.4rem;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 0.7rem;
    letter-spacing: 0.15rem;
    color: var(--accent-color);
    text-transform: uppercase;
    margin-bottom: 2.5rem;
}

/* Lyrics Engine */
#lyrics-container {
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
}

.lyric-line {
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.4s var(--transition-main), transform 0.4s var(--transition-main);
    transform: translateY(10px);
}

.lyric-line.active {
    opacity: 1;
    transform: translateY(0);
}

.lyric-line.jp { font-size: 1.1rem; font-weight: 300; }
.lyric-line.romaji { font-size: 0.7rem; color: var(--accent-color); }
.lyric-line.en { font-size: 0.8rem; font-style: italic; }

/* Trigger Button */
#projects-trigger {
    margin-top: 3rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem 2rem;
    font-size: 0.7rem;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    transition: var(--transition-main);
}

#projects-trigger:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

/* Bottom Control Bar */
#control-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 2rem;
    background: rgba(var(--bg-color), 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.bar-left, .bar-right {
    display: flex;
    align-items: center;
}

.bar-right { justify-content: flex-end; gap: 1.5rem; }

.visitor-counter {
    font-size: 0.65rem;
    letter-spacing: 0.1rem;
}

.visitor-counter .label { color: var(--accent-color); margin-right: 0.5rem; }

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-color);
    padding: 5px;
    transition: var(--transition-main);
}

/* Theme Switch Orbital Button */
.theme-switch {
    background: rgba(var(--bg-color), 0.5);
    border: 1px solid var(--border-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-main);
    backdrop-filter: blur(5px);
}

.switch-orbit {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 1.2s cubic-bezier(0.68, -0.6, 0.32, 1.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    padding: 5px 0;
}

.light-mode .switch-orbit { transform: translateY(0) rotate(0deg); }
.dark-mode .switch-orbit { transform: translateY(-50%) rotate(180deg); }

.theme-switch svg {
    transition: var(--transition-main);
}

.dark-mode #sun-icon { opacity: 0.3; filter: blur(1px); }
.light-mode #moon-icon { opacity: 0.3; filter: blur(1px); }

#sun-icon { color: #ffcc33; }
#moon-icon { color: #888888; }

#media-suite {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem; /* Tighter vertical gap */
}

.track-meta {
    display: flex;
    justify-content: space-between;
    width: 280px; /* More compact width */
    font-size: 0.5rem; /* More minimalist typo */
    letter-spacing: 0.12rem;
    color: var(--accent-color);
    text-transform: uppercase;
}

.media-controls {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.media-controls .icon-btn {
    opacity: 0.6;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-controls .icon-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

#shuffle-btn.active {
    color: #fff;
    opacity: 1;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.light-mode #shuffle-btn.active {
    color: #000;
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

#progress-container {
    width: 140px; /* Slimmer footprint */
    height: 1px; /* Hairline thickness */
    background: var(--border-color);
    position: relative;
    cursor: pointer;
    margin: 0 0.5rem;
}

#progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--text-color);
    box-shadow: 0 0 8px var(--text-color);
    transition: width 0.1s linear;
}

.main-play {
    width: 28px; /* More precise scale */
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Volume Slider Polish */
.volume-container {
    display: flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

#volume-slider {
    -webkit-appearance: none;
    width: 80px;
    height: 1px;
    background: var(--border-color);
    outline: none;
}

#volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 8px;
    height: 8px;
    background: var(--text-color);
    border-radius: 50%;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(var(--bg-color), 0.95);
    backdrop-filter: blur(20px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 1000px;
    max-height: 80vh;
    padding: 4rem;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    transform: scale(0.9);
    opacity: 0;
    transition: var(--transition-pop);
}

.modal.active .modal-content {
    transform: scale(1);
    opacity: 1;
}

#close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    border: 1px solid var(--border-color);
    padding: 2rem;
    transition: var(--transition-main);
}

.project-card:hover {
    border-color: var(--text-color);
    transform: translateY(-5px);
}

.project-card h4 {
    font-weight: 400;
    letter-spacing: 0.1rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.card-header svg {
    opacity: 0.3;
    transition: var(--transition-main);
}

.project-card:hover .card-header svg {
    opacity: 1;
    transform: translate(2px, -2px);
}

.project-card p {
    font-size: 0.75rem;
    color: var(--accent-color);
    line-height: 1.5;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .glitch-text {
        font-size: 2.5rem;
        letter-spacing: 0.3rem;
    }

    .centered-box {
        padding: 0 1rem;
    }

    .profile-container {
        width: 120px;
        height: 120px;
    }

    #control-bar {
        height: auto;
        padding: 1rem;
        grid-template-columns: 1fr;
        gap: 1rem;
        justify-items: center;
    }

    .bar-left, .bar-right {
        justify-content: center;
        order: 2;
    }

    .bar-center {
        order: 1;
        width: 100%;
    }

    .track-meta {
        width: 100%;
        max-width: 280px;
    }

    #progress-container {
        width: 100px;
    }

    .modal-content {
        padding: 2rem 1.5rem;
        width: 95%;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-height: 600px) {
    .profile-container {
        width: 80px;
        height: 80px;
        margin-bottom: 1rem;
    }
    
    #lyrics-container {
        height: 80px;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--border-color); }
::-webkit-scrollbar-thumb:hover { background: var(--accent-color); }