/* ========================================
   Supreme Store - Premium Stylesheet
   Powered by R E V O L V E R
   ======================================== */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
    /* Colors - Primary Palette */
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-primary-rgb: 99, 102, 241;
    
    /* Colors - Secondary Palette */
    --color-secondary: #ec4899;
    --color-secondary-light: #f472b6;
    --color-secondary-dark: #db2777;
    
    /* Colors - Accent */
    --color-accent: #10b981;
    --color-accent-light: #34d399;
    --color-accent-dark: #059669;
    
    /* Colors - Neutrals */
    --color-background: #0f0f1a;
    --color-background-elevated: #1a1a2e;
    --color-background-card: #16213e;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;
    
    /* Colors - Text */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Colors - Status */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.4);
    --shadow-glow-lg: 0 0 40px rgba(var(--color-primary-rgb), 0.6);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-fixed: 1200;
    --z-modal-backdrop: 1300;
    --z-modal: 1400;
    --z-popover: 1500;
    --z-tooltip: 1600;
    --z-notification: 1700;
    --z-cursor: 9999;
}

/* ========================================
   Global Resets & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    overflow-x: hidden;
    position: relative;
}

body.no-scroll {
    overflow: hidden;
}

/* ========================================
   Custom Cursor
   ======================================== */
.cursor-dot,
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    border-radius: 50%;
    z-index: var(--z-cursor);
    transform: translate(-50%, -50%);
    transition: opacity var(--transition-fast);
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.cursor-outline {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-primary);
    opacity: 0.5;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.cursor-outline.expand {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0.8;
}

@media (pointer: coarse) {
    .cursor-dot,
    .cursor-outline {
        display: none;
    }
}

/* ========================================
   Particles Background
   ======================================== */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0.1;
    animation: floatParticle 20s infinite;
}

@keyframes floatParticle {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.1;
    }
    50% {
        transform: translate(var(--tx), var(--ty)) scale(1.5);
        opacity: 0.3;
    }
}

/* ========================================
   Loading Screen
   ======================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-elevated) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    animation: fadeInUp 0.8s var(--transition-bounce);
}

.loading-logo {
    margin-bottom: var(--spacing-2xl);
}

.logo-text {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.1em;
    animation: glow 2s ease-in-out infinite alternate;
}

.logo-subtext {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    letter-spacing: 0.3em;
    margin-top: var(--spacing-sm);
    font-weight: 300;
}

.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.spinner-ring {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(var(--color-primary-rgb), 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-ring:nth-child(2) {
    width: 50px;
    height: 50px;
    border-top-color: var(--color-secondary);
    animation-duration: 1.5s;
    animation-direction: reverse;
}

.spinner-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    border-top-color: var(--color-accent);
    animation-duration: 2s;
}

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

.loading-progress {
    width: 300px;
    height: 4px;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto var(--spacing-lg);
}

.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    width: 0;
    animation: loadProgress 2s ease-out forwards;
}

@keyframes loadProgress {
    to {
        width: 100%;
    }
}

.loading-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 300;
}

/* ========================================
   Authentication Container
   ======================================== */
.auth-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    overflow-y: auto;
    padding: var(--spacing-lg);
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.auth-container.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.auth-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-elevated) 100%);
    overflow: hidden;
}

.auth-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: floatOrb 20s ease-in-out infinite;
}

.auth-gradient-orb.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: -10%;
    left: -10%;
}

.auth-gradient-orb.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-secondary);
    bottom: -15%;
    right: -15%;
    animation-delay: -5s;
}

.auth-gradient-orb.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes floatOrb {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.auth-box {
    position: relative;
    width: 100%;
    max-width: 480px;
    background: rgba(var(--color-primary-rgb), 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-2xl);
    animation: fadeInUp 0.6s var(--transition-bounce);
}

.auth-form {
    display: none;
    animation: fadeIn var(--transition-base);
}

.auth-form.active {
    display: block;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.form-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color var(--transition-base);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) * 3);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.form-input:focus + .input-icon {
    color: var(--color-primary);
}

.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--color-primary);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.password-strength {
    margin-top: var(--spacing-sm);
}

.strength-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    width: 0;
    background: var(--color-error);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.strength-fill.weak {
    width: 33%;
    background: var(--color-error);
}

.strength-fill.medium {
    width: 66%;
    background: var(--color-warning);
}

.strength-fill.strong {
    width: 100%;
    background: var(--color-success);
}

.strength-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.auth-footer {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.auth-switch {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.auth-note {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-sm);
    opacity: 0.8;
}

.auth-link {
    background: none;
    border: none;
    color: var(--color-primary);
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-base);
    text-decoration: none;
}

.auth-link:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-auth {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.btn-hero {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.btn-text {
    position: relative;
    z-index: 1;
}

/* Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.ripple:active::after {
    width: 200px;
    height: 200px;
}

/* ========================================
   App Container
   ======================================== */
.app-container {
    position: relative;
    z-index: 1;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.app-container.visible {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   Navigation Bar
   ======================================== */
.navbar {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) 0;
    transition: all var(--transition-base);
    animation: slideDown 0.6s var(--transition-bounce);
    position: relative;
    z-index: var(--z-sticky);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.nav-brand {
    flex-shrink: 0;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: transform var(--transition-base);
}

.brand-logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 48px;
    height: 48px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    animation: rotateLogo 10s linear infinite;
}

.icon-layer:nth-child(1) {
    transform: rotate(0deg);
    opacity: 1;
}

.icon-layer:nth-child(2) {
    transform: rotate(45deg);
    opacity: 0.6;
}

.icon-layer:nth-child(3) {
    transform: rotate(90deg);
    opacity: 0.3;
}

@keyframes rotateLogo {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-tagline {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.2em;
    font-weight: 300;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transform: translateX(-50%);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
    background: rgba(var(--color-primary-rgb), 0.2);
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.nav-link.active::after {
    width: 80%;
}

.nav-icon {
    width: 18px;
    height: 18px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(var(--color-primary-rgb), 0.1);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.nav-action-btn:hover {
    background: rgba(var(--color-primary-rgb), 0.2);
    color: var(--color-text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-action-btn svg {
    width: 18px;
    height: 18px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(9px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-9px);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    position: relative;
}

.section {
    min-height: 100vh;
    padding: var(--spacing-3xl) 0;
    position: relative;
    display: flex;
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: floatOrb 25s ease-in-out infinite;
}

.gradient-orb.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -20%;
    right: -10%;
}

.gradient-orb.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-secondary);
    bottom: -10%;
    left: -5%;
    animation-delay: -8s;
}

.gradient-orb.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    top: 40%;
    left: 50%;
    animation-delay: -16s;
}

.gradient-mesh {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveMesh 20s linear infinite;
}

@keyframes moveMesh {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 50px 50px;
    }
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s var(--transition-bounce);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(var(--color-primary-rgb), 0.1);
    border: 1px solid rgba(var(--color-primary-rgb), 0.2);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
    animation: pulse 2s ease-in-out infinite;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.badge-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary-light);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
}

.title-line {
    display: block;
    animation: slideInLeft 0.8s var(--transition-bounce) backwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.title-line:nth-child(3) {
    animation-delay: 0.4s;
}

.title-line.highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
    animation: fadeIn 1s ease-out 0.6s backwards;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    animation: fadeIn 1s ease-out 0.8s backwards;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    animation: fadeIn 1s ease-out 1s backwards;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-3xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    animation: fadeIn 1s ease-out 1.2s backwards;
}

.scroll-mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    padding-top: var(--spacing-sm);
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(12px);
        opacity: 0;
    }
}

.scroll-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Products Section
   ======================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
}

.product-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    animation: fadeInUp 0.6s var(--transition-bounce) backwards;
}

.product-card:nth-child(2) {
    animation-delay: 0.2s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.product-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), rgba(var(--color-secondary-rgb), 0.1));
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-content {
    padding: var(--spacing-xl);
}

.product-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.product-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.product-price {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.price-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-value {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-accent);
}

.product-action {
    flex-shrink: 0;
}

/* ========================================
   Library Section
   ======================================== */
.library-content {
    min-height: 400px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    text-align: center;
}

.empty-state.hidden {
    display: none;
}

.empty-icon {
    width: 120px;
    height: 120px;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-muted);
    opacity: 0.5;
}

.empty-icon svg {
    width: 100%;
    height: 100%;
}

.empty-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.empty-description {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.library-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s var(--transition-bounce) backwards;
}

.library-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
}

.library-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.library-item-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    flex-shrink: 0;
}

.library-item-info {
    flex: 1;
}

.library-item-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.library-item-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.library-item-progress {
    margin-bottom: var(--spacing-lg);
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.progress-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    justify-content: space-between;
}

.library-item-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.library-item.downloaded .library-item-progress {
    display: none;
}

/* ========================================
   Ratings Section
   ======================================== */
.ratings-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.rating-summary {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.rating-score {
    text-align: center;
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-xl);
}

.score-number {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.score-stars {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.score-stars svg {
    width: 24px;
    height: 24px;
    color: var(--color-warning);
}

.score-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.rating-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.breakdown-item {
    display: grid;
    grid-template-columns: 60px 1fr 40px;
    align-items: center;
    gap: var(--spacing-md);
}

.breakdown-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.breakdown-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.breakdown-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    width: 0;
    animation: fillBar 1s ease-out forwards;
    animation-delay: 0.5s;
}

@keyframes fillBar {
    to {
        width: var(--percentage);
    }
}

.breakdown-count {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-align: right;
}

.add-review-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.add-review-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.add-review-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.review-stars {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.star-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: transform var(--transition-base);
}

.star-btn:hover {
    transform: scale(1.2);
}

.star-btn svg {
    width: 32px;
    height: 32px;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.star-btn.active svg,
.star-btn:hover svg {
    fill: var(--color-warning);
    color: var(--color-warning);
}

.review-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    resize: vertical;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.review-textarea:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.reviews-list {
    display: grid;
    gap: var(--spacing-lg);
}

.review-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    animation: fadeInUp 0.4s var(--transition-bounce) backwards;
}

.review-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(10px);
}

.review-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.review-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.review-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.review-user-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.review-username {
    font-weight: 600;
    color: var(--color-text-primary);
}

.review-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.review-rating {
    display: flex;
    gap: 4px;
}

.review-rating svg {
    width: 18px;
    height: 18px;
    fill: var(--color-warning);
    color: var(--color-warning);
}

.review-rating svg.empty {
    fill: none;
    color: var(--color-text-muted);
}

.review-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.load-more-container.hidden {
    display: none;
}

/* ========================================
   About Section
   ======================================== */
.about-content {
    display: grid;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.about-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xl);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s var(--transition-bounce) backwards;
}

.about-card:nth-child(2) {
    animation-delay: 0.2s;
}

.about-card:nth-child(3) {
    animation-delay: 0.4s;
}

.about-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.about-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.about-icon svg {
    width: 40px;
    height: 40px;
}

.about-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.about-description:last-child {
    margin-bottom: 0;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-lg);
    transition: transform var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-number {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.feature-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-background-elevated);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 400px;
}

.footer-description {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Modal
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
    overflow-y: auto;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    cursor: pointer;
    z-index: -1;
}

.modal-content {
    position: relative;
    background: var(--color-background-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-2xl);
    z-index: 1;
}

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

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 1;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-primary);
}

.modal-header {
    padding: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.modal-body {
    padding: var(--spacing-2xl);
}

.modal-product {
    max-width: 800px;
}

.modal-product-body {
    padding: 0;
}

.product-modal-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.product-modal-content {
    padding: var(--spacing-2xl);
}

.product-modal-header {
    margin-bottom: var(--spacing-xl);
}

.product-modal-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.product-modal-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.product-modal-features {
    margin-bottom: var(--spacing-xl);
}

.features-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.features-list {
    display: grid;
    gap: var(--spacing-md);
}

.feature-item-modal {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-text {
    flex: 1;
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.product-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.product-modal-price {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.modal-price-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.modal-price-value {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Profile Modal */
.profile-avatar {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.avatar-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.avatar-circle svg {
    width: 60px;
    height: 60px;
}

.profile-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ========================================
   Snackbar Notifications
   ======================================== */
.snackbar-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-notification);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 400px;
}

.snackbar {
    background: var(--color-background-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideInRight 0.3s var(--transition-bounce);
    min-width: 300px;
}

.snackbar.success {
    border-left: 4px solid var(--color-success);
}

.snackbar.error {
    border-left: 4px solid var(--color-error);
}

.snackbar.info {
    border-left: 4px solid var(--color-info);
}

.snackbar-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.snackbar.success .snackbar-icon {
    color: var(--color-success);
}

.snackbar.error .snackbar-icon {
    color: var(--color-error);
}

.snackbar.info .snackbar-icon {
    color: var(--color-info);
}

.snackbar-message {
    flex: 1;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

.snackbar-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.snackbar-close:hover {
    color: var(--color-text-primary);
}

.snackbar-close svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Confetti Canvas
   ======================================== */
.confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-popover);
}

/* ========================================
   Keyframe Animations
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

@keyframes glow {
    from {
        filter: drop-shadow(0 0 10px rgba(var(--color-primary-rgb), 0.5));
    }
    to {
        filter: drop-shadow(0 0 20px rgba(var(--color-primary-rgb), 0.8));
    }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-6xl: 3rem;
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .library-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .ratings-overview {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --spacing-3xl: 3rem;
    }
    
    .nav-menu,
    .nav-actions {
        position: fixed;
        top: 90px;
        left: 0;
        right: 0;
        background: var(--color-background-elevated);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        border-bottom: 2px solid var(--color-primary);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: var(--z-dropdown);
        box-shadow: var(--shadow-2xl);
        max-height: 70vh;
        overflow-y: auto;
    }
    
    .nav-menu.active,
    .nav-actions.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-actions {
        top: auto;
        bottom: 0;
        border-top: 2px solid var(--color-primary);
        border-bottom: none;
        max-height: auto;
    }
    
    .nav-toggle {
        display: flex;
        z-index: calc(var(--z-dropdown) + 1);
        position: relative;
    }
    
    .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: var(--spacing-lg);
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }
    
    .nav-action-btn {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-lg);
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }
    
    .nav-action-text {
        display: inline;
    }
    
    .nav-icon {
        width: 24px;
        height: 24px;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-hero {
        width: 100%;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: space-around;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .library-grid {
        grid-template-columns: 1fr;
    }
    
    .about-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-icon {
        margin: 0 auto;
    }
    
    .about-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .snackbar-container {
        left: var(--spacing-lg);
        right: var(--spacing-lg);
        max-width: none;
    }
}

@media (max-width: 360px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }
    
    .auth-box {
        padding: var(--spacing-xl);
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .stat-item {
        min-width: 100px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.hidden {
    display: none !important;
}

.invisible {
    visibility: hidden !important;
}

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

.text-primary {
    color: var(--color-primary);
}

.text-success {
    color: var(--color-success);
}

.text-error {
    color: var(--color-error);
}

.bg-primary {
    background-color: var(--color-primary);
}

.purchased {
    opacity: 0.6;
    pointer-events: none;
}

.purchased .product-badge {
    background: var(--color-success);
}

.purchased .product-badge::after {
    content: ' ✓ Owned';
}

/* Smooth focus styles */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Better selection color */
::selection {
    background: var(--color-primary);
    color: white;
}

::-moz-selection {
    background: var(--color-primary);
    color: white;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}