:root {
    --bg-dark: #020617;
    --bg-card: rgba(30, 41, 59, 0.4);
    --primary-glow: #22d3ee;
    /* Cyan */
    --secondary-glow: #a855f7;
    /* Purple */
    --accent-color: #f97316;
    /* Orange */
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-container: 1200px;
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

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

/* Background Ambient Glow */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(34, 211, 238, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.05) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

img {
    max-width: 100%;
}

h1,
h2,
h3 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.1;
}

.container {
    width: 100%;
    max-width: var(--spacing-container);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography Fluidity */
.headline {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    background: linear-gradient(to right, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 24px;
}

.subheadline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

/* Buttons */
.cta-button {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ea580c 100%);
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 30px rgba(249, 115, 22, 0.5);
}

.hero-small-text {
    font-size: 0.875rem;
    color: #64748B;
    margin-top: 20px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Hero Section */
.hero-section {
    padding: 140px 0 100px;
    text-align: center;
    position: relative;
}

.badge {
    background: rgba(34, 211, 238, 0.1);
    color: var(--primary-glow);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-block;
    margin-bottom: 30px;
    border: 1px solid rgba(34, 211, 238, 0.2);
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.1);
}

/* Sections Common */
section {
    padding: 100px 0;
}

/* Glassmorphism Cards Common */
.content-card,
.feature-card,
.offer-card,
.id-box {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 20px;
}

/* Identification Block */
.identification-section {
    background: transparent;
}

.id-box {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 30px;
    border-left: 4px solid var(--secondary-glow);
    background: linear-gradient(90deg, rgba(168, 85, 247, 0.05) 0%, rgba(30, 41, 59, 0.4) 100%);
}

.id-box h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 16px;
    color: #e2e8f0;
}

/* Problem Block */
.problem-section {
    text-align: center;
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.problem-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Product Section */
.product-section {
    position: relative;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.highlight {
    background: linear-gradient(to right, var(--primary-glow), var(--secondary-glow));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.product-desc {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px -10px rgba(34, 211, 238, 0.15);
    border-color: rgba(34, 211, 238, 0.3);
}

.icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Audience */
.audience-section {
    position: relative;
    overflow: hidden;
}

/* Dynamic background shape */
.audience-section::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    transform: translateY(-50%);
    z-index: -1;
}

.audience-section h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.check-list {
    list-style: none;
    max-width: 700px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
}

.check-list li {
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.check-icon {
    color: var(--secondary-glow);
    font-size: 1.25rem;
}

/* Testimonials */
.testimonials-section {
    background: transparent;
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(168, 85, 247, 0.2);
    /* Purple tint border */
    padding: 30px;
    border-radius: 16px;
    position: relative;
    transition: transform 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: rgba(168, 85, 247, 0.5);
}

.quote {
    font-size: 1.125rem;
    font-style: italic;
    color: #e2e8f0;
    margin-bottom: 20px;
    line-height: 1.6;
}

.quote::before {
    content: '"';
    font-size: 4rem;
    color: rgba(168, 85, 247, 0.2);
    position: absolute;
    top: -10px;
    left: 20px;
    font-family: serif;
}

.author {
    font-weight: 700;
    color: var(--primary-glow);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Offer Section */
.offer-section {
    padding: 120px 0;
    text-align: center;
}

.offer-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 80px 40px;
    position: relative;
    border: 1px solid rgba(249, 115, 22, 0.3);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(249, 115, 22, 0.05);
}

.offer-tag {
    background: var(--accent-color);
    color: white;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 30px;
    border-radius: 0 0 20px 20px;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: 0 10px 20px rgba(249, 115, 22, 0.3);
}

.price-box {
    margin: 40px 0;
}

.old-price {
    display: block;
    text-decoration: line-through;
    color: #475569;
    font-size: 1.25rem;
}

.new-price {
    display: block;
    font-size: 4.5rem;
    font-weight: 800;
    background: linear-gradient(180deg, #FFFFFF 0%, #94A3B8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.1;
}

.guarantee-box {
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    text-align: left;
    background: rgba(255, 255, 255, 0.03);
    padding: 24px;
    border-radius: 16px;
}

.guarantee-icon {
    font-size: 2.5rem;
}

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: #475569;
}

.legal-links a {
    color: #64748B;
    text-decoration: none;
    margin: 0 12px;
    font-size: 0.875rem;
    transition: color 0.2s;
}

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

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .hero-section {
        padding: 100px 0 60px;
    }

    .offer-card {
        padding: 60px 24px;
    }

    .new-price {
        font-size: 3.5rem;
    }

    .guarantee-box {
        flex-direction: column;
        text-align: center;
    }
}