:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --secondary: #06b6d4;
    --bg-dark: #0f172a;
    --text-light: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    min-height: 100vh;
    background-image: 
        radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.4) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.4) 0px, transparent 50%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    padding: 2rem 5%;
    display: flex;
    justify-content: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(to right, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 4rem 5% 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.highlight {
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    max-width: 600px;
    margin-bottom: 3rem;
    line-height: 1.6;
}

/* Store Buttons */
.download-instruction {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.cta-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 4rem;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 12px 24px;
    border-radius: 16px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.store-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.store-btn i {
    font-size: 2rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-text span {
    font-size: 0.75rem;
    opacity: 0.8;
}

.btn-text strong {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Video Placeholder */
.hero-image-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

.video-wrapper {
    aspect-ratio: 9 / 16;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}

.promo-video {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background-color: var(--bg-dark);
    border: none;
}

.glass-panel:hover {
    transform: scale(1.02);
}

.play-icon {
    font-size: 4rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 15px rgba(6, 182, 212, 0.5));
}

.video-hint {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-top: 10px;
}

/* Testimonial Section */
.testimonial-section {
    padding: 6rem 5%;
    display: flex;
    justify-content: center;
}

.glass-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    max-width: 800px;
    position: relative;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.quote-icon {
    position: absolute;
    top: -25px;
    left: 40px;
    font-size: 2rem;
    color: var(--primary);
    background: var(--bg-dark);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
}

.testimonial-text {
    font-size: 1.5rem;
    line-height: 1.6;
    font-weight: 300;
    font-style: italic;
    margin-bottom: 2rem;
    color: #e2e8f0;
}

.testimonial-text strong {
    color: #38bdf8;
    font-weight: 600;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.testimonial-author h4 {
    margin: 0;
    font-size: 1.1rem;
}

.testimonial-author span {
    font-size: 0.9rem;
    color: #94a3b8;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 5%;
    border-top: 1px solid var(--glass-border);
    margin-top: 2rem;
    color: #94a3b8;
}

.footer-link {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    margin-top: 0.5rem;
    display: inline-block;
}

.footer-link:hover {
    text-decoration: underline;
}

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .testimonial-text { font-size: 1.2rem; }
    .glass-card { padding: 2rem; }
}