/**
 * 🎨 2026 AI-Native Design System
 * Modern UI with neon gradients, glassmorphism, and COSMO branding
 * For the Creative OS for Multimedia Orchestration
 */

/* ==================== ROOT VARIABLES ==================== */
:root {
    /* Neon Gradient Colors */
    --neon-purple: #8B5CF6;
    --neon-pink: #EC4899;
    --neon-cyan: #06B6D4;
    --neon-green: #10B981;
    --neon-blue: #3B82F6;
    --neon-yellow: #FACC15;
    --neon-orange: #F97316;
    
    /* Dark Gradient Background Colors */
    --slate-950: #020617;
    --purple-950: #3B0764;
    --purple-950-alpha: rgba(59, 7, 100, 0.2);
    
    /* Primary Neon Gradients */
    --gradient-neon-primary: linear-gradient(135deg, var(--neon-purple) 0%, var(--neon-pink) 50%, var(--neon-cyan) 100%);
    --gradient-neon-secondary: linear-gradient(225deg, var(--neon-green) 0%, var(--neon-blue) 50%, var(--neon-purple) 100%);
    --gradient-neon-accent: linear-gradient(45deg, var(--neon-pink), var(--neon-orange), var(--neon-yellow));
    --gradient-neon-cool: linear-gradient(180deg, var(--neon-cyan), var(--neon-blue), var(--neon-purple));
    
    /* Dark Background Gradient */
    --gradient-dark-bg: linear-gradient(180deg, 
        var(--slate-950) 0%, 
        var(--purple-950-alpha) 50%, 
        var(--slate-950) 100%
    );
    
    /* Glassmorphism Properties */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(40px);
    --glass-blur-heavy: blur(60px);
    
    /* Text Colors */
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Shadows and Glows */
    --neon-glow-purple: 0 0 40px rgba(139, 92, 246, 0.6);
    --neon-glow-pink: 0 0 40px rgba(236, 72, 153, 0.6);
    --neon-glow-cyan: 0 0 40px rgba(6, 182, 212, 0.6);
    --shadow-elevated: 0 20px 50px rgba(0, 0, 0, 0.5);
    
    /* Animation Timings */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ==================== GLOBAL STYLES ==================== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gradient-dark-bg);
    background-attachment: fixed;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Dark gradient background with animated particles */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark-bg);
    z-index: -2;
}

/* Animated gradient overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 20% 80%,
        var(--purple-950-alpha) 0%,
        transparent 50%
    ),
    radial-gradient(
        circle at 80% 20%,
        rgba(139, 92, 246, 0.1) 0%,
        transparent 50%
    ),
    radial-gradient(
        circle at 40% 40%,
        rgba(236, 72, 153, 0.05) 0%,
        transparent 50%
    );
    animation: gradientShift 20s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-10%, -10%) rotate(120deg); }
    66% { transform: translate(-20%, 10%) rotate(240deg); }
}

/* ==================== GLASSMORPHIC COMPONENTS ==================== */

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 32px;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-elevated);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated), var(--neon-glow-purple);
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    overflow: hidden;
    position: relative;
}

/* Neon border effect */
.glass-panel::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-neon-primary);
    border-radius: 16px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.glass-panel:hover::before {
    opacity: 0.5;
}

/* ==================== NEON BUTTONS ==================== */

.btn-neon {
    background: var(--gradient-neon-primary);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.btn-neon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-neon:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
}

.btn-neon:hover::before {
    width: 300px;
    height: 300px;
}

.btn-neon-secondary {
    background: transparent;
    border: 2px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)),
                      var(--gradient-neon-secondary);
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

/* ==================== COSMO BRANDING ==================== */

.cosmo-brand {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.cosmo-tagline {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-top: 8px;
}

.cosmo-logo {
    width: 60px;
    height: 60px;
    background: var(--gradient-neon-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: white;
    box-shadow: var(--neon-glow-purple);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ==================== NEON INPUTS ==================== */

.input-neon {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 16px;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    width: 100%;
}

.input-neon:focus {
    outline: none;
    border-color: var(--neon-purple);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.05);
}

.input-neon::placeholder {
    color: var(--text-muted);
}

/* ==================== TERMINAL STYLING ==================== */

.terminal-container {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-elevated);
}

.terminal-header {
    background: linear-gradient(90deg, var(--glass-bg), rgba(139, 92, 246, 0.1));
    padding: 16px 24px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.terminal-content {
    padding: 24px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
}

.terminal-input {
    background: transparent;
    border: none;
    color: var(--neon-cyan);
    font-family: inherit;
    font-size: inherit;
    width: 100%;
    outline: none;
}

.terminal-prompt {
    color: var(--neon-green);
    margin-right: 8px;
}

/* ==================== NAVIGATION ==================== */

.nav-modern {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 32px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
}

.nav-item.active {
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.2);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--gradient-neon-primary);
    border-radius: 2px;
}

/* ==================== CARDS AND PANELS ==================== */

.card-neon {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.card-neon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-neon-primary);
    opacity: 0.8;
}

.card-neon:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

/* ==================== FLOATING ELEMENTS ==================== */

.floating-orb {
    width: 80px;
    height: 80px;
    background: var(--gradient-neon-primary);
    border-radius: 50%;
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--neon-glow-purple);
    animation: pulse 2s ease-in-out infinite;
    transition: var(--transition-smooth);
    z-index: 1000;
}

.floating-orb:hover {
    transform: scale(1.1);
    box-shadow: var(--neon-glow-pink);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.05); opacity: 1; }
}

/* ==================== MODALS ==================== */

.modal-modern {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-elevated);
    z-index: 10000;
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 9999;
}

/* ==================== ANIMATIONS ==================== */

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

.slide-in {
    animation: slideIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.glow-pulse {
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.5); }
    50% { box-shadow: 0 0 40px rgba(236, 72, 153, 0.8); }
}

/* ==================== SCROLLBAR ==================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-neon-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-neon-secondary);
}

/* ==================== UTILITY CLASSES ==================== */

.text-gradient {
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.neon-border {
    border: 2px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)),
                      var(--gradient-neon-primary);
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

.backdrop-heavy {
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
}

.shadow-neon {
    box-shadow: var(--shadow-elevated), var(--neon-glow-purple);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 768px) {
    .glass-card {
        padding: 20px;
        border-radius: 16px;
    }
    
    .cosmo-brand {
        font-size: 24px;
    }
    
    .floating-orb {
        width: 60px;
        height: 60px;
        bottom: 20px;
        right: 20px;
    }
    
    .nav-modern {
        padding: 12px 16px;
    }
}

/* ==================== GRID SYSTEM ==================== */

.grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    padding: 24px;
}

.grid-item {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    transition: var(--transition-smooth);
}

.grid-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.3);
}

/* ==================== SPECIAL EFFECTS ==================== */

.holographic {
    background: linear-gradient(
        45deg,
        var(--neon-pink),
        var(--neon-purple),
        var(--neon-cyan),
        var(--neon-green),
        var(--neon-blue)
    );
    background-size: 400% 400%;
    animation: holographicShift 10s ease infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes holographicShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.particle-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--neon-purple);
    border-radius: 50%;
    opacity: 0.5;
    animation: particleFloat 20s infinite linear;
}

@keyframes particleFloat {
    from {
        transform: translateY(100vh) rotate(0deg);
    }
    to {
        transform: translateY(-100vh) rotate(360deg);
    }
}

/* ==================== COSMO SPECIFIC COMPONENTS ==================== */

.cosmo-header {
    text-align: center;
    padding: 60px 20px;
    position: relative;
}

.cosmo-title {
    font-size: clamp(48px, 10vw, 120px);
    font-weight: 900;
    letter-spacing: -2px;
    margin: 0;
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 80px rgba(139, 92, 246, 0.5);
}

.cosmo-subtitle {
    font-size: clamp(16px, 3vw, 24px);
    color: var(--text-secondary);
    margin-top: 16px;
    text-transform: uppercase;
    letter-spacing: 4px;
}

.cosmo-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 24px auto;
    line-height: 1.6;
}

/* ==================== LOADING STATES ==================== */

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--neon-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.skeleton-loader {
    background: linear-gradient(
        90deg,
        var(--glass-bg) 0%,
        rgba(139, 92, 246, 0.1) 50%,
        var(--glass-bg) 100%
    );
    background-size: 200% 100%;
    animation: skeletonWave 1.5s ease-in-out infinite;
    border-radius: 8px;
}

@keyframes skeletonWave {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}