:root {
    /* Premium Luxury Theme Variables */
    --bg-main: #111111; /* Charcoal */
    --bg-secondary: #1a1a1a; /* Darker Grey */
    --bg-card: #151515;
    --text-primary: #f8fafc; /* Slate 50 */
    --text-secondary: #cbd5e1; /* Slate 300 */
    --text-muted: #94a3b8; /* Slate 400 */
    
    --accent-primary: #e63946; /* Crimson Red */
    --accent-hover: #c1121f; /* Dark Red */
    --accent-glow: rgba(230, 57, 70, 0.5);
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);
    
    --font-main: 'Outfit', sans-serif;
    
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(to right, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    font-family: var(--font-main);
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
}

.btn-outline:hover {
    background-color: var(--accent-primary);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: var(--accent-primary);
}

.logo span {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-secondary);
}

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

.nav-cta {
    font-weight: 600;
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-primary);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.nav-cta:hover {
    background: var(--accent-primary);
    color: #fff;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 120px;
    padding-bottom: 80px;
    background-color: var(--bg-main);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #fff, var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.stat h3 {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 5px;
}

.stat span {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    position: relative;
    z-index: 1;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-shape {
    position: absolute;
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-primary), #ff9f1c);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    filter: blur(60px);
    opacity: 0.3;
    animation: shapeShift 10s ease-in-out infinite alternate;
}

@keyframes shapeShift {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; transform: rotate(0deg) scale(1); }
    100% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; transform: rotate(180deg) scale(1.1); }
}

.hero-image {
    position: relative;
    z-index: 2;
    width: 90%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    border: 1px solid var(--border-light);
}

/* Products Section */
.products-section {
    padding: 100px 0;
    background-color: var(--bg-main);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.product-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 1px solid var(--border-light);
}

.badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-primary);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.new-badge {
    background: #10b981; /* Emerald */
}

.product-info {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.product-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-light);
}

.price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-primary);
}

.btn-buy {
    padding: 8px 20px;
    background-color: transparent;
    border: 1px solid var(--accent-primary);
    color: var(--text-primary);
}

.btn-buy:hover {
    background-color: var(--accent-primary);
    color: #fff;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.about-features {
    margin-top: 30px;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.about-features i {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.about-image {
    height: 400px;
    border-radius: var(--border-radius);
    background-image: url('images/about_audio.png');
    background-size: cover;
    background-position: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-light);
}

/* Support Hub Section */
.support-hub-section {
    padding: 100px 0;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-light);
    overflow: hidden;
}

.support-hub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.hub-title {
    font-size: 2rem;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.hub-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-primary);
}

/* Reviews Slider */
.reviews-wrapper {
    position: relative;
}

.reviews-slider {
    position: relative;
    height: 300px;
}

.review-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s ease;
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    transform: translateX(20px);
}

.review-slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.stars {
    color: #fbbf24;
    margin-bottom: 15px;
}

.review-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-primary);
}

.reviewer h4 {
    margin: 0;
    font-size: 1rem;
}

.reviewer span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.slider-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.slider-btn {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}

/* FAQ Accordion */
.faq-wrapper {
    position: relative;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.02);
}

.faq-question i {
    transition: var(--transition);
    color: var(--accent-primary);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer p {
    padding-bottom: 20px;
    color: var(--text-secondary);
}

/* Footer */
footer {
    background-color: #05080f;
    padding-top: 80px;
    border-top: 1px solid var(--border-light);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.footer-brand i {
    color: var(--accent-primary);
}

.footer-brand p {
    color: var(--text-secondary);
    max-width: 300px;
}

.footer-links h4, .footer-legal h4, .footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links ul li, .footer-legal ul li, .footer-contact ul li {
    margin-bottom: 12px;
}

.footer-links a, .footer-legal a {
    color: var(--text-secondary);
}

.footer-links a:hover, .footer-legal a:hover {
    color: var(--accent-primary);
    padding-left: 5px;
}

.footer-contact li {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent-primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 25px 0;
    text-align: center;
}

.disclaimer {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 10px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Modal / Popup */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    overflow: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    opacity: 1;
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: 5% auto;
    padding: 40px;
    border: 1px solid var(--border-light);
    width: 90%;
    max-width: 500px;
    border-radius: var(--border-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    color: var(--text-muted);
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--accent-primary);
}

.modal-header {
    text-align: center;
    margin-bottom: 30px;
}

.modal-header h2 {
    color: #fff;
    margin-bottom: 10px;
}

.modal-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

.form-group input[readonly] {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--accent-primary);
    font-weight: 600;
    cursor: not-allowed;
}

.modal-support {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    text-align: center;
}

.modal-support h4 {
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.support-btn {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 20px;
    border-radius: 20px;
    color: #fff;
    border: 1px solid var(--border-light);
}

.support-btn i {
    color: var(--accent-primary);
    margin-right: 5px;
}

.support-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-stats { justify-content: center; }
    .hero h1 { font-size: 3rem; }
    .hero-buttons { justify-content: center; }
    .about-container { grid-template-columns: 1fr; }
    .about-image { height: 300px; order: -1; }
    .support-hub-grid { grid-template-columns: 1fr; }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .mobile-menu-btn { display: block; }
    .hero h1 { font-size: 2.5rem; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .footer-container { grid-template-columns: 1fr; gap: 30px; }
    .product-grid { grid-template-columns: 1fr; }
}