/* VOIDXYZ Core Styles - Premium Market Leader Design */
:root {
    /* Premium Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f1a;
    --bg-card: #141428;
    --bg-tertiary: #1a1a35;
    
    /* Premium Accent Colors */
    --accent-primary: #00d4ff;
    --accent-secondary: #ff00ff;
    --accent-tertiary: #00ff88;
    --accent-quaternary: #ff3366;
    --accent-quinary: #ffaa00;
    --accent-senary: #6a0dad;
    --accent-septenary: #00ced1;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-tertiary: #707080;
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Premium Gradients */
    --gradient-1: linear-gradient(135deg, #0a0a0f 0%, #00d4ff 50%, #0a0a0f 100%);
    --gradient-2: linear-gradient(135deg, #0a0a0f 0%, #ff00ff 50%, #0a0a0f 100%);
    --gradient-3: linear-gradient(135deg, #0a0a0f 0%, #00ff88 50%, #0a0a0f 100%);
    --gradient-4: linear-gradient(135deg, #0a0a0f 0%, #ff3366 50%, #0a0a0f 100%);
    --gradient-5: linear-gradient(135deg, #0a0a0f 0%, #ffaa00 50%, #0a0a0f 100%);
    --gradient-6: linear-gradient(135deg, #0a0a0f 0%, #6a0dad 50%, #0a0a0f 100%);
    --gradient-7: linear-gradient(135deg, #0a0a0f 0%, #00ced1 50%, #0a0a0f 100%);
    
    /* Premium Card Gradients */
    --gradient-card-1: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%);
    --gradient-card-2: linear-gradient(135deg, rgba(255, 0, 255, 0.1) 0%, rgba(255, 0, 255, 0.05) 100%);
    --gradient-card-3: linear-gradient(135deg, rgba(0, 255, 136, 0.1) 0%, rgba(0, 255, 136, 0.05) 100%);
    
    /* Premium Shadows */
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow-cyan: 0 0 30px rgba(0, 212, 255, 0.3);
    --shadow-glow-magenta: 0 0 30px rgba(255, 0, 255, 0.3);
    --shadow-glow-green: 0 0 30px rgba(0, 255, 136, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Orbitron', sans-serif;
    --font-secondary: 'Space Grotesk', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.3);
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Z-index */
    --z-header: 1000;
    --z-nav: 1100;
    --z-modal: 1200;
    --z-loading: 1300;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Premium Cyberpunk Background System */
.cyber-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    background: 
        radial-gradient(ellipse at top left, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(255, 0, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at center, rgba(0, 255, 136, 0.05) 0%, transparent 70%),
        linear-gradient(180deg, #0a0a0f 0%, #0f0f1a 50%, #0a0a0f 100%);
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -2;
    opacity: 0.3;
}

.abstract-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    filter: blur(60px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--gradient-1);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-2);
    top: 60%;
    left: 70%;
    animation-delay: 2s;
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
}

.shape-3 {
    width: 350px;
    height: 350px;
    background: var(--gradient-3);
    top: 30%;
    left: 50%;
    animation-delay: 4s;
    border-radius: 20% 80% 20% 80% / 80% 20% 80% 20%;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Main Content */
.main-content {
    flex: 1;
    padding-bottom: 80px; /* Space for bottom nav */
    min-height: calc(100vh - 140px);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 30, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(108, 92, 231, 0.3);
    border-top: 3px solid var(--accent-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* Premium Button System - Touch Optimized */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px; /* Touch target compliance */
    min-width: 44px;  /* Touch target compliance */
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(20px);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-primary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-cyan), var(--shadow-premium);
    border-color: var(--accent-primary);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
}

.btn-secondary:hover {
    background: var(--gradient-card-1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-cyan);
    border-color: var(--accent-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow-cyan);
}

/* Premium Card System */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-premium);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card-1);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-premium), var(--shadow-glow-cyan);
    border-color: var(--accent-primary);
}

.card:hover::before {
    opacity: 1;
}

/* Card Variants */
.card-premium {
    background: var(--bg-card);
    border: 1px solid rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-glow-cyan);
}

.card-premium:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow-cyan), var(--shadow-premium);
}

.card-secondary {
    background: var(--bg-card);
    border: 1px solid rgba(255, 0, 255, 0.2);
}

.card-secondary:hover {
    border-color: var(--accent-secondary);
    box-shadow: var(--shadow-glow-magenta), var(--shadow-premium);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive Grid */
@media (max-width: 768px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .grid-4,
    .grid-3,
    .grid-2 { grid-template-columns: 1fr; }
}

/* Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.slide-up {
    animation: slideUp 0.4s ease forwards;
}