/* 
 * Aura Precision 4.0 Design System
 * Music Recreator AI Suite
 * 
 * @author RN
 * @version 1.0.0
 */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&family=JetBrains+Mono&display=swap');

:root {
    --bg-deep: #0a0a0c;
    --bg-card: rgba(20, 20, 22, 0.7);
    --accent-purple: #a100ff;
    --accent-cyan: #00f2ff;
    --accent-green: #00ff88;
    --text-main: #ffffff;
    --text-dim: #a0a0a5;
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(16px);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-deep);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(161, 0, 255, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 100% 100%, rgba(0, 242, 255, 0.05) 0%, transparent 40%);
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 60px;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

/* Hub Layout */
.hub-container {
    width: 100%;
    max-width: 1100px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
}

/* Sidebar Nav */
.module-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    padding: 15px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
    color: var(--text-dim);
}

.nav-item i { font-size: 1.2rem; }

.nav-item:hover, .nav-item.active {
    background: rgba(161, 0, 255, 0.1);
    border-color: var(--accent-purple);
    color: white;
    transform: translateX(10px);
}

/* Main Display */
.main-display {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    border-radius: 12px;
    padding: 50px;
    position: relative;
    overflow: hidden;
}

/* Aura Dropzone */
.dropzone {
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 80px 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.02);
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-purple);
    background: rgba(161, 0, 255, 0.05);
}

.dropzone i {
    font-size: 4rem;
    color: var(--accent-purple);
    margin-bottom: 20px;
    opacity: 0.5;
}

/* Processing Pulse */
.processing-pulse {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
    box-shadow: 0 0 20px var(--accent-purple);
    transition: width 0.3s ease;
}

/* Info Module */
.info-module {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.info-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 20px;
    border-radius: 8px;
}

.info-label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; margin-bottom: 8px; display: block; }
.info-value { font-weight: 600; color: var(--accent-green); }