:root {
    --bg-color: #0E1313; /* Derived from logo */
    --text-color: #f0f0f0;
    --text-muted: #a0aab2;
    --primary-color: #00e5ff; /* Vibrant neon cyan accent for tech premium feel */
    --primary-hover: #00b8cc;
    --secondary-color: #1c2727; /* Darker grey-green shade */
    --glass-bg: rgba(28, 39, 39, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

/* Background gradient fx to add premium feel */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 15% 50%, rgba(0, 229, 255, 0.08), transparent 35%),
                radial-gradient(circle at 85% 30%, rgba(0, 229, 255, 0.05), transparent 35%);
    z-index: -1;
    pointer-events: none;
}

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

/* Typography elements */
h1, h2, h3 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ffffff;
}

h1 span {
    color: var(--primary-color);
}

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

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

/* Glassmorphism Utilities */
.glass-header {
    background: rgba(14, 19, 19, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.glass-section {
    background: linear-gradient(180deg, rgba(28, 39, 39, 0.2) 0%, rgba(14, 19, 19, 0) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
}

.hover-lift:hover {
    transform: translateY(-10px) rotateX(4deg) rotateY(-4deg) translateZ(20px);
    border-color: rgba(0, 229, 255, 0.4);
    box-shadow: -10px 15px 35px rgba(0, 229, 255, 0.15);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-speed) ease;
    border: none;
    font-size: 1rem;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: #000000;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.6);
    transform: scale(1.05);
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #000000 !important;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(0, 229, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 229, 255, 0);
    }
}

/* Header */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    max-height: 55px; /* Ensures the logo never overflows the 80px header */
    width: auto;
    object-fit: contain;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    max-width: 900px;
    margin: 0 auto 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.hero-devices {
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: 20px;
    background: var(--glass-bg);
    display: inline-block;
}

.hero-devices strong {
    color: var(--primary-color);
    font-weight: 500;
}

/* Features */
.features {
    padding: 80px 0;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    perspective: 1200px;
}

.feature-card {
    text-align: left;
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Pricing */
.pricing {
    padding: 80px 0;
    position: relative;
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
    perspective: 1500px;
}

.price-card {
    text-align: center;
    position: relative;
}

.price-card.popular {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 8px 40px rgba(0, 229, 255, 0.15);
}

.price-card.popular:hover {
    transform: scale(1.05) translateY(-10px) rotateX(4deg) translateZ(30px);
    box-shadow: 0 15px 45px rgba(0, 229, 255, 0.25);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #000;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.price-card h3 {
    font-size: 1.8rem;
    color: var(--text-muted);
}

.price-card.popular h3 {
    color: #ffffff;
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1.5rem 0;
    color: #ffffff;
}

.price span {
    font-size: 1.2rem;
    color: var(--text-muted);
    font-weight: 400;
}

.price-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.price-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.pricing-disclaimer {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}

/* Reviews */
.reviews {
    padding: 80px 0;
}

.reviews h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    perspective: 1200px;
}

.review-item:hover {
    transform: translateY(-8px) rotateX(3deg) rotateY(3deg) translateZ(10px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: -5px 10px 25px rgba(255, 215, 0, 0.1);
}

.review-item .stars {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.review-item p {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* FAQ Section */
.faq {
    padding: 80px 0;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    cursor: pointer;
    padding: 1.5rem 2rem;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0;
    font-size: 1.2rem;
}

.faq-question span {
    font-size: 1.5rem;
    transition: transform var(--transition-speed);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin-top 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px; /* arbitrary max height for transition */
    margin-top: 1rem;
}

.faq-item.active .faq-question span {
    transform: rotate(45deg);
    color: var(--primary-color);
}

.faq-answer p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Footer Section */
.footer {
    padding: 80px 0 20px;
}

.footer-cta {
    text-align: center;
    padding: 60px 20px;
    border-radius: 24px;
    margin-bottom: 60px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.footer-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.footer-cta p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

.footer-links {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile version: hide nav, they'll use cta */
    }
    
    .hero-content h1 {
        font-size: 2.4rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .price-card.popular {
        transform: none;
    }
    
    .price-card.popular:hover {
        transform: translateY(-8px);
    }
}

/* WhatsApp Float */
.floating-wa {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: transform 0.3s ease;
    animation: bounce 2s infinite;
}

.floating-wa:hover {
    transform: scale(1.1);
    color: white;
}

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

/* Scarcity Tag */
.scarcity-tag {
    background-color: rgba(220, 53, 69, 0.15);
    color: #ff4d4d;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    margin: 0 auto 1.5rem;
    display: inline-block;
    border: 1px solid rgba(255, 77, 77, 0.3);
    animation: fadeRed 1.5s infinite alternate;
}

@keyframes fadeRed {
    from { opacity: 0.7; }
    to { opacity: 1; box-shadow: 0 0 12px rgba(255,77,77,0.4); }
}