/* ============================================
   MOODIFY — STYLE SYSTEM
   ============================================ */

/* --- Design Tokens --- */
:root {
    --glass-bg: rgba(20, 15, 30, 0.45);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-shadow: 0 15px 45px rgba(0, 0, 0, 0.3);

    /* Pastel Palette */
    --pastel-lavender: #b39cd0;
    --pastel-blue: #a0c4ff;
    --pastel-pink: #ffc4d9;
    --pastel-mint: #98f5e1;
    --pastel-peach: #ffd6a5;

    --text-primary: #f8f8fb;
    --text-secondary: rgba(255, 255, 255, 0.55);

    /* Dynamic mood color (updated by JS) */
    --mood-color: #ffc4d9;
    --mood-color-rgb: 255, 196, 217;
}

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

body, html {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
}

/* ============================================
   BACKGROUND PARTICLES (CSS-only)
   ============================================ */
.bg-particles {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-particle {
    position: absolute;
    width: 3px; height: 3px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    animation: floatParticle linear infinite;
    will-change: transform, opacity;
}

@keyframes floatParticle {
    0%   { transform: translateY(0) translateX(0); opacity: 0; }
    10%  { opacity: 0.15; }
    90%  { opacity: 0.15; }
    100% { transform: translateY(-100vh) translateX(40px); opacity: 0; }
}

/* ============================================
   3D ORB SCENE (CSS Transforms)
   ============================================ */
.orb-scene {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1200px;
    pointer-events: none;
}

.orb-wrapper {
    position: relative;
    width: 280px; height: 280px;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    pointer-events: auto;
    animation: orbFloat 6s ease-in-out infinite;
    will-change: transform;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0px); }
    50%      { transform: translateY(-18px); }
}

/* Core Sphere */
.orb-core {
    position: absolute;
    top: 50%; left: 50%;
    width: 220px; height: 220px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background:
        radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.35) 0%, transparent 45%),
        radial-gradient(circle at 60% 70%, rgba(0, 0, 0, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, var(--mood-color) 0%, rgba(var(--mood-color-rgb), 0.6) 60%, rgba(var(--mood-color-rgb), 0.2) 100%);
    box-shadow:
        inset 0 -10px 30px rgba(0, 0, 0, 0.15),
        inset 0 10px 20px rgba(255, 255, 255, 0.12),
        0 0 60px rgba(var(--mood-color-rgb), 0.4),
        0 0 120px rgba(var(--mood-color-rgb), 0.15);
    transition: transform 0.15s ease-out, box-shadow 0.3s ease-out, background 1.2s ease;
    will-change: transform, box-shadow;
    z-index: 3;
}

/* Outer Glow */
.orb-glow {
    position: absolute;
    top: 50%; left: 50%;
    border-radius: 50%;
    pointer-events: none;
    transition: opacity 0.3s ease, background 1.2s ease, box-shadow 0.3s ease;
    will-change: transform, opacity;
}

.orb-glow--outer {
    width: 380px; height: 380px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(var(--mood-color-rgb), 0.12) 0%, transparent 70%);
    z-index: 1;
}

.orb-glow--mid {
    width: 300px; height: 300px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(var(--mood-color-rgb), 0.2) 0%, transparent 65%);
    z-index: 2;
}

/* Ripple Ring */
.orb-ripple {
    position: absolute;
    top: 50%; left: 50%;
    width: 220px; height: 220px;
    transform: translate(-50%, -50%) scale(1);
    border-radius: 50%;
    border: 1.5px solid rgba(var(--mood-color-rgb), 0.25);
    opacity: 0;
    pointer-events: none;
    z-index: 4;
    will-change: transform, opacity;
}

.orb-ripple.active {
    animation: ripplePulse 1s ease-out forwards;
}

@keyframes ripplePulse {
    0%   { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    100% { transform: translate(-50%, -50%) scale(2.2); opacity: 0; }
}

/* Satellites */
.satellites {
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    transform-style: preserve-3d;
    z-index: 5;
    transition: transform 0.6s ease;
}

.satellite {
    position: absolute;
    width: 36px; height: 36px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle, var(--mood-color) 0%, rgba(var(--mood-color-rgb), 0.4) 100%);
    box-shadow: 0 0 20px rgba(var(--mood-color-rgb), 0.35);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
                opacity 0.6s ease,
                background 1.2s ease,
                box-shadow 1.2s ease;
    opacity: 0;
    will-change: transform, opacity;
}

.satellite.expanded {
    opacity: 1;
}

/* Orb expanded state — shrink core */
.orb-core.collapsed {
    transform: translate(-50%, -50%) scale(0.15);
    opacity: 0.25;
}

/* ============================================
   APPLICATION GRID
   ============================================ */
.app-grid {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    gap: 40px;
    padding: 40px;
    z-index: 10;
    pointer-events: none;
}

/* ============================================
   GLASSMORPHISM PANEL BASE
   ============================================ */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(35px);
    -webkit-backdrop-filter: blur(35px);
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    box-shadow: var(--glass-shadow);
    pointer-events: auto;
    display: flex;
    flex-direction: column;
    padding: 35px;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
}

.glass-panel:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), inset 0 0 35px rgba(255, 255, 255, 0.03);
    transform: translateY(-2px);
}

/* ============================================
   LEFT SIDEBAR
   ============================================ */
.sidebar {
    justify-content: flex-start;
}

.header {
    margin-bottom: 45px;
}

.logo {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    background: linear-gradient(45deg, var(--pastel-blue), var(--pastel-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(255,255,255,0.1);
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 6px;
    font-weight: 300;
}

.section-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 25px;
    font-weight: 600;
}

.mood-section {
    flex-grow: 1;
}

.mood-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mood-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    color: var(--text-primary);
    padding: 16px 20px;
    border-radius: 14px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    gap: 14px;
}

.mood-btn .icon {
    font-size: 1.2rem;
    opacity: 0.9;
}

.mood-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(4px) translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.mood-btn.active {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* Mood-specific active glows */
.mood-btn.active[data-mood="energetic"] { border-color: var(--pastel-pink);     box-shadow: -4px 0 20px rgba(255, 196, 217, 0.3); }
.mood-btn.active[data-mood="happy"]     { border-color: var(--pastel-peach);    box-shadow: -4px 0 20px rgba(255, 214, 165, 0.3); }
.mood-btn.active[data-mood="focus"]     { border-color: var(--pastel-mint);     box-shadow: -4px 0 20px rgba(152, 245, 225, 0.3); }
.mood-btn.active[data-mood="chill"]     { border-color: var(--pastel-lavender); box-shadow: -4px 0 20px rgba(179, 156, 208, 0.3); }
.mood-btn.active[data-mood="sad"]       { border-color: var(--pastel-blue);     box-shadow: -4px 0 20px rgba(160, 196, 255, 0.3); }

.status-box {
    margin-top: auto;
    padding-top: 25px;
    border-top: 1px solid var(--glass-border);
}

.ai-status {
    font-size: 0.9rem;
    color: var(--pastel-lavender);
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: color 1s ease;
}

/* ============================================
   CENTER FOCUS
   ============================================ */
.center-focus {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 50px;
}

.interaction-hint {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
    transition: opacity 0.5s ease;
    animation: pulseHint 3s infinite alternate ease-in-out;
    pointer-events: none;
}

@keyframes pulseHint {
    0%   { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.0); transform: translateY(0); }
    100% { box-shadow: 0 0 15px 0 rgba(255, 255, 255, 0.15); transform: translateY(-3px); }
}

/* ============================================
   RIGHT PLAYER SIDEBAR
   ============================================ */
.player-sidebar {
    align-items: center;
    justify-content: center;
}

.player-sidebar .section-title {
    align-self: flex-start;
    width: 100%;
}

.album-art-container {
    width: 210px;
    height: 210px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--pastel-pink), var(--pastel-blue));
    padding: 6px;
    margin: 25px 0 35px 0;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
    position: relative;
    transition: background 1s ease, box-shadow 1s ease;
}

.album-art {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #111;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    animation: spin 15s linear infinite;
    animation-play-state: paused;
}
.album-art.playing {
    animation-play-state: running;
}

.record-grooves {
    position: absolute;
    width: 90%;
    height: 90%;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.03);
    box-shadow:
        inset 0 0 0 10px rgba(0,0,0,0.2),
        inset 0 0 0 20px #1a1a1a,
        inset 0 0 0 21px rgba(255,255,255,0.03),
        inset 0 0 0 35px #111,
        inset 0 0 0 36px rgba(255,255,255,0.03);
}

.center-label {
    width: 55px;
    height: 55px;
    background: var(--pastel-pink);
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(0,0,0,0.5), inset 0 0 8px rgba(255,255,255,0.4);
    z-index: 2;
    position: relative;
    transition: background 1s ease;
}

.center-label::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 12px; height: 12px;
    background: #0d0d0d;
    border-radius: 50%;
}

/* Track Info */
.track-info {
    text-align: center;
    margin-bottom: 25px;
    width: 100%;
}
.track-info h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.45rem;
    font-weight: 600;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.track-info p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* EQ Waveform */
.waveform-container {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 6px;
    height: 35px;
    margin-bottom: 30px;
}
.waveform-bar {
    width: 5px;
    background: var(--text-secondary);
    border-radius: 3px;
    height: 4px;
    transition: background 1s ease, height 0.1s ease;
}
.waveform-container.playing .waveform-bar {
    animation: eq 0.8s ease-in-out infinite alternate;
}
.waveform-container.playing .waveform-bar:nth-child(1) { animation-delay: 0.1s; animation-duration: 0.7s; }
.waveform-container.playing .waveform-bar:nth-child(2) { animation-delay: 0.3s; animation-duration: 0.9s; }
.waveform-container.playing .waveform-bar:nth-child(3) { animation-delay: 0.0s; animation-duration: 0.6s; }
.waveform-container.playing .waveform-bar:nth-child(4) { animation-delay: 0.4s; animation-duration: 1.0s; }
.waveform-container.playing .waveform-bar:nth-child(5) { animation-delay: 0.2s; animation-duration: 0.8s; }

@keyframes eq {
    0%   { height: 4px; }
    100% { height: 35px; filter: brightness(1.3); }
}

/* Progress Bar */
.progress-container {
    width: 100%;
    margin-bottom: 30px;
}
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}
.progress-fill {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--pastel-blue), var(--pastel-pink));
    border-radius: 3px;
    transition: width 0.1s linear, background 1s ease;
}
.progress-glow {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, transparent, var(--pastel-pink));
    border-radius: 3px;
    filter: blur(5px);
    transition: width 0.1s linear, background 1s ease;
}
.time-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 10px;
    font-variant-numeric: tabular-nums;
}

/* Controls */
.controls {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-top: auto;
}
.ctrl-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    opacity: 0.75;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    justify-content: center;
    align-items: center;
}
.ctrl-btn:hover {
    opacity: 1;
    transform: scale(1.15);
}
.ctrl-btn svg {
    width: 26px;
    height: 26px;
}
.play-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(8px);
    opacity: 1;
}
.play-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.25);
    transform: scale(1.08);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}