:root {
    --bg-dark: #0a0a0a;
    --text-main: #f9f9f9;
    --text-muted: #a1a1aa;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --card-bg: #111111;
    --border-color: #27272a;
    --glow: rgba(59, 130, 246, 0.4);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* Typography */
h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
}

.highlight {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
}

.logo span {
    color: var(--text-muted);
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--accent);
    color: white;
    padding: 0.875rem 1.75rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px 0 var(--glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(59, 130, 246, 0.6);
}

.btn-primary.large {
    padding: 1rem 2.5rem;
    font-size: 1.25rem;
}

.btn-outline {
    display: inline-block;
    background-color: transparent;
    color: var(--text-main);
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: white;
    color: black;
}

.btn-text {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: opacity 0.3s;
}

.btn-text:hover {
    opacity: 0.7;
}

/* Sections */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 7rem 5% 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-right: 2rem;
}

.cta-group {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: 1rem;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 24px;
    z-index: 2;
    transform: perspective(1000px) rotateY(-15deg);
    transition: transform 0.5s ease;
    box-shadow: 20px 20px 60px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(-5deg) scale(1.02);
}

.image-glow {
    position: absolute;
    width: 80%;
    height: 80%;
    background: var(--accent);
    filter: blur(80px);
    opacity: 0.3;
    z-index: 1;
    border-radius: 50%;
}

.features {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.section-title {
    margin-bottom: 4rem;
}

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

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 20px;
    transition: transform 0.3s ease, border-color 0.3s ease;
    text-align: left;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 1rem;
}

.checkout {
    padding: 6rem 5%;
    display: flex;
    justify-content: center;
}

.checkout-card {
    background: linear-gradient(180deg, var(--card-bg) 0%, rgba(17,17,17,0.4) 100%);
    border: 1px solid var(--border-color);
    padding: 4rem 3rem;
    border-radius: 24px;
    text-align: center;
    max-width: 600px;
    width: 100%;
}

.checkout-card h2 {
    margin-bottom: 1rem;
}

.price-display {
    margin: 3rem 0;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.price-display .currency {
    font-size: 2rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.price-display .amount {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
}

.price-display .cents {
    font-size: 2rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.secure-text {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 5%;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

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

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 8rem;
    }

    .hero-content {
        padding-right: 0;
        align-items: center;
    }

    .cta-group {
        justify-content: center;
    }

    .hero-image img {
        transform: none;
    }
    
    .hero-image:hover img {
        transform: scale(1.02);
    }
}

@media (max-width: 600px) {
    .cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary {
        width: 100%;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}