:root {
    --bg-color: #0f1115;
    --text-color: #ffffff;
    --text-secondary: #9ca3af;
    --accent-color: #22c55e; /* Зелений колір графіків */
    --accent-hover: #16a34a;
    --card-bg: #1f2937;
}

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

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    padding: 20px 0;
    margin-bottom: 40px;
}

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

.dot {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 60px;
}

.badge {
    display: inline-block;
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 800;
}

.highlight {
    color: var(--accent-color);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: #000;
    font-weight: 700;
    text-decoration: none;
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: transform 0.2s, background-color 0.2s;
    box-shadow: 0 4px 20px rgba(34, 197, 94, 0.3);
}

.cta-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.security-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 15px;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.feature-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
}

.feature-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
footer {
    margin-top: auto;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    padding-bottom: 30px;
}

.disclaimer {
    font-size: 0.7rem;
    color: #6b7280;
    margin-bottom: 20px;
    text-align: justify;
}

.copyright {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.copyright a {
    color: var(--text-secondary);
    text-decoration: none;
}

/* Mobile Adaptation */
@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }
    .cta-button {
        width: 100%;
        text-align: center;
    }
}