/* CSS Variables */
:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #ffa502;
    --success-color: #26de81;
    --dark-color: #2d3436;
    --light-color: #dfe6e9;
    --white-color: #ffffff;
    --gray-color: #636e72;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f8f9fa;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
}

.nav-brand i {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-icons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cart-btn {
    position: relative;
    background: var(--gradient-2);
    border: none;
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent-color);
    color: white;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: rgba(255, 107, 157, 0.4);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.blob-2 {
    width: 350px;
    height: 350px;
    background: rgba(255, 165, 2, 0.4);
    bottom: 10%;
    right: 10%;
    animation-delay: 5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: rgba(56, 249, 215, 0.4);
    top: 50%;
    right: 20%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(50px, 50px) scale(1.1);
    }
    50% {
        transform: translate(0, 100px) scale(0.9);
    }
    75% {
        transform: translate(-50px, 50px) scale(1.05);
    }
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--gradient-2);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: white;
}

.features .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 20px;
    background: white;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--gray-color);
}

/* Products Section */
.products {
    padding: 4rem 0;
    background: linear-gradient(to bottom, white, #f8f9fa);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.product-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.7rem 1.5rem;
    border: 2px solid var(--light-color);
    background: white;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-color);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-2);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    width: 100%;
    height: 250px;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.product-name {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.product-description {
    color: var(--gray-color);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.add-to-cart-btn {
    background: var(--gradient-2);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.add-to-cart-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* About Section */
.about {
    padding: 4rem 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    padding: 2rem 0;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--gray-color);
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--gradient-3);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: white;
    box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact {
    padding: 4rem 0;
    background: linear-gradient(to bottom, white, #f8f9fa);
}

/* Music Playground Section */
.playground {
    padding: 4rem 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
    color: white;
}

.playground .section-title {
    color: white;
}

.playground .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* Mode Switcher */
.mode-switcher {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.mode-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.mode-btn.active {
    background: var(--gradient-4);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(67, 233, 123, 0.3);
}

.playground-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.playground-controls {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.control-group {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.control-group h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: white;
}

.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-music {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-music:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-play {
    background: linear-gradient(135deg, #26de81 0%, #20bf6b 100%);
    border-color: transparent;
}

.btn-play:hover {
    background: linear-gradient(135deg, #20bf6b 0%, #26de81 100%);
}

.btn-stop {
    background: linear-gradient(135deg, #fc5c65 0%, #eb3b5a 100%);
    border-color: transparent;
}

.btn-stop:hover {
    background: linear-gradient(135deg, #eb3b5a 0%, #fc5c65 100%);
}

.pattern-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.pattern-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.pattern-btn.active {
    background: var(--gradient-4);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(67, 233, 123, 0.3);
}

.example-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.example-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.slider-control {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider {
    flex: 1;
    height: 6px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-4);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-4);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

#tempoValue {
    font-weight: bold;
    font-size: 1.2rem;
    min-width: 50px;
}

.instrument-toggles {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
}

.toggle-label:hover {
    background: rgba(255, 255, 255, 0.1);
}

.toggle-label input[type="checkbox"] {
    width: 50px;
    height: 26px;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    outline: none;
    transition: var(--transition);
}

.toggle-label input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    background: white;
    transition: var(--transition);
}

.toggle-label input[type="checkbox"]:checked {
    background: var(--gradient-4);
}

.toggle-label input[type="checkbox"]:checked::before {
    left: 27px;
}

.toggle-label span {
    font-weight: 600;
    font-size: 1.1rem;
}

/* Instrument Info Cards */
.instrument-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.instrument-card {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.instrument-card:hover {
    background: rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.instrument-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.instrument-icon {
    font-size: 1.5rem;
}

.instrument-name {
    font-weight: bold;
    font-size: 1.1rem;
}

.instrument-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.detail-label {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.detail-value {
    color: var(--success-color);
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

/* Code Editor Styles */
.editor-container {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    padding: 0;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 600px;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.editor-header h3 {
    margin: 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

.editor-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.editor-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

#runCode {
    background: linear-gradient(135deg, #26de81 0%, #20bf6b 100%);
    border-color: transparent;
}

#runCode:hover {
    background: linear-gradient(135deg, #20bf6b 0%, #26de81 100%);
}

.editor-wrapper {
    position: relative;
    flex: 1;
    overflow: hidden;
}

.code-editor {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    background: transparent;
    border: none;
    outline: none;
    color: transparent;
    caret-color: white;
    font-family: 'Courier New', Consolas, Monaco, monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    z-index: 2;
    white-space: pre;
    overflow-wrap: normal;
    overflow-x: auto;
}

.editor-highlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    margin: 0;
    background: #1e1e1e;
    color: #d4d4d4;
    font-family: 'Courier New', Consolas, Monaco, monospace;
    font-size: 14px;
    line-height: 1.6;
    pointer-events: none;
    z-index: 1;
    white-space: pre;
    overflow-wrap: normal;
    overflow-x: auto;
}

.editor-footer {
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.editor-help {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.editor-help code {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    color: var(--success-color);
}

.editor-help kbd {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
}

.help-separator {
    color: rgba(255, 255, 255, 0.3);
}

.shortcut-hint {
    margin-left: auto;
}

.visualizer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.visualizer-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    text-align: center;
}

.pattern-grid {
    display: grid;
    grid-template-columns: auto repeat(16, 1fr);
    gap: 4px;
    font-size: 0.9rem;
}

.pattern-label {
    padding: 0.5rem;
    display: flex;
    align-items: center;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

.pattern-step {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.pattern-step:hover {
    background: rgba(255, 255, 255, 0.2);
}

.pattern-step.active {
    background: var(--gradient-4);
    box-shadow: 0 0 10px rgba(67, 233, 123, 0.5);
}

.pattern-step.playing {
    border-color: var(--accent-color);
    animation: pulse 0.3s ease;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* Contact Section */
.contact {
    padding: 4rem 0;
    background: linear-gradient(to bottom, white, #f8f9fa);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--light-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.contact-item p {
    color: var(--gray-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-brand i {
    font-size: 2rem;
}

.footer-brand p {
    color: var(--light-color);
    margin-top: 1rem;
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--light-color);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    margin-bottom: 0.5rem;
}

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

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--light-color);
}

/* Cart Modal */
.cart-modal {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    transition: var(--transition);
}

.cart-modal.active {
    right: 0;
}

.cart-modal-content {
    position: absolute;
    right: 0;
    top: 0;
    width: 450px;
    max-width: 100%;
    height: 100%;
    background: white;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: var(--transition);
}

.cart-modal.active .cart-modal-content {
    transform: translateX(0);
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--light-color);
}

.close-cart {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-color);
    transition: var(--transition);
}

.close-cart:hover {
    color: var(--dark-color);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.cart-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--light-color);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

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

.cart-item-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cart-item-price {
    color: var(--primary-color);
    font-weight: bold;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.qty-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--light-color);
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.qty-btn:hover {
    background: var(--primary-color);
    color: white;
}

.cart-item-qty {
    width: 40px;
    text-align: center;
    font-weight: 600;
}

.remove-item {
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    margin-left: auto;
    font-size: 1.2rem;
    transition: var(--transition);
}

.remove-item:hover {
    color: var(--secondary-color);
}

.cart-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--light-color);
    background: white;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.cart-total span:last-child {
    color: var(--primary-color);
}

.empty-cart {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--gray-color);
}

.empty-cart i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        transition: var(--transition);
        backdrop-filter: blur(10px);
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .about-content,
    .contact-content,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .playground-content {
        grid-template-columns: 1fr;
    }

    .editor-container {
        height: 500px;
    }

    .mode-switcher {
        flex-wrap: wrap;
    }

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

    .cart-modal-content {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .features .container {
        grid-template-columns: 1fr;
    }
}