/* Base Design System */
:root {
    --bg-color: #050505;
    --bg-secondary: #0f1014;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary: #6366f1; /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #ec4899; /* Pink */
    --accent: #8b5cf6; /* Violet */
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --container-width: 1200px;
    --radius-lg: 24px;
    --radius-md: 16px;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shine: rgba(255, 255, 255, 0.1);
}

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

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

.text-center { text-align: center; }

.text-gradient {
    background: linear-gradient(135deg, #fff 0%, var(--primary) 50%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-heading);
}

.btn--sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.btn--lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

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

.header__btn {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid var(--glass-border);
}
.header__btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
}

.hero__btn, .btn--block {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}
.hero__btn:hover, .btn--block:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

/* Glassmorphism */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}
.logo span { color: var(--primary); }

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

.nav__link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}
.nav__link:hover { color: white; }

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.burger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: white;
}

/* Hero Section */
.hero {
    padding-top: 140px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
}

.hero__container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero__content {
    flex: 1;
    z-index: 2;
}

.hero__title {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero__bullets {
    display: flex;
    gap: 30px;
    margin-top: 60px;
    border-top: 1px solid var(--glass-border);
    padding-top: 30px;
}

.bullet-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bullet-icon {
    font-size: 1.5rem;
    background: var(--glass-bg);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.bullet-text {
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.2;
}
.bullet-text span {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Hero Visual */
.hero__visual {
    flex: 1;
    position: relative;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.glowing-circle {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--primary);
    filter: blur(80px);
    opacity: 0.4;
    border-radius: 50%;
    z-index: 1;
    animation: pulse 4s infinite alternate;
}

.illustration-card {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 2;
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 900;
    box-shadow: 0 0 50px var(--primary-glow);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 40px;
}

/* Problem Satelite */
.problem {
    background-color: var(--bg-secondary);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.comparison-card {
    padding: 40px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.comparison-card.pain {
    border-left: 4px solid #ef4444; /* Red for pain */
}

.comparison-card.gain {
    border-left: 4px solid #22c55e; /* Green for gain */
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.05) 0%, rgba(5,5,5,0) 100%);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    padding: 10px 0;
    color: var(--text-muted);
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

/* Timeline/Process */
.timeline {
    max-width: 800px;
    margin: 40px auto 0;
    position: relative;
    padding-left: 30px;
    border-left: 2px solid var(--glass-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 20px;
}

.step-number {
    position: absolute;
    left: -41px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--bg-color);
    border: 2px solid var(--primary);
    border-radius: 50%;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 14px;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: white;
}
.step-content p {
    color: var(--text-muted);
}

/* Tech Grid */
.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.tech-card {
    background: var(--glass-bg);
    padding: 30px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    transition: transform 0.3s;
}
.tech-card:hover { transform: translateY(-5px); }
.tech-card h3 { color: var(--primary); margin-bottom: 15px; }
.tech-card p { color: var(--text-muted); }

/* Reviews */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.review-card {
    background: var(--glass-bg);
    padding: 30px;
    border-radius: var(--radius-md);
    font-style: italic;
    border: 1px solid var(--glass-border);
}
.stars { margin-bottom: 10px; }

/* FAQ */
.accordion {
    max-width: 800px;
    margin: 40px auto 0;
}

.accordion-item {
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    border: 1px solid var(--glass-border);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-heading);
}

.accordion-body {
    padding: 0 20px 20px;
    color: var(--text-muted);
    display: none;
}
.accordion-item.active .accordion-body { display: block; }

/* Footer */
.footer {
    padding-top: 80px;
    border-top: 1px solid var(--glass-border);
    background: #000;
}

.footer__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer__form {
    padding: 40px;
}

.lead-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: white;
}

.copyright {
    padding: 20px;
    border-top: 1px solid var(--glass-border);
    color: #4b5563;
    font-size: 0.9rem;
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.4; }
    100% { transform: scale(1.1); opacity: 0.6; }
}

/* Responsive */
@media (max-width: 768px) {
    .header__container { padding: 0 15px; }
    .nav { display: none; position: absolute; top: 70px; left: 0; width: 100%; height: 100vh; background: black; flex-direction: column; align-items: center; padding-top: 40px; }
    .nav.active { display: flex; }
    .burger { display: flex; }
    .header__btn { display: none; }
    
    .hero__title { font-size: 2.5rem; }
    .hero__container { flex-direction: column; text-align: center; }
    .hero__bullets { justify-content: center; flex-wrap: wrap; }
    .hero__visual { display: none; } /* Hide complicated visual on mobile for speed */
    
    .comparison-grid, .footer__container { grid-template-columns: 1fr; }
    
    .timeline { border-left: none; padding-left: 0; }
    .timeline-item { padding-left: 0; text-align: center; }
    .step-number { display: none; }
}