@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700;900&display=swap');

:root {
    --background-color: #121212;
    --surface-color: #1E1E1E;
    --primary-color: #1DB954;
    --text-primary-color: #FFFFFF;
    --text-secondary-color: #B3B3B3;
    --border-radius-btn: 12px;
    --border-radius-card: 12px;
}

body {
    background-color: var(--background-color);
    color: var(--text-primary-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    scroll-behavior: smooth;
}

.navbar {
    background-color: rgba(30, 30, 30, 0.8);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 900;
    font-size: 1.75rem;
    color: var(--text-primary-color);
}

.navbar-brand:hover {
    color: var(--primary-color);
}

.hero {
    background: linear-gradient(180deg, var(--surface-color) 0%, var(--background-color) 100%);
    padding: 120px 0;
    text-align: center;
}

.hero h1 {
    font-weight: 900;
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    color: var(--text-secondary-color);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: var(--border-radius-btn);
    font-weight: 700;
    padding: 12px 32px;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background-color: #1ed760;
    border-color: #1ed760;
    transform: scale(1.05);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.feature-card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius-card);
    padding: 2rem;
    text-align: center;
    height: 100%;
    border: 1px solid #282828;
}

.feature-card .icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary-color);
}

.footer {
    background-color: var(--surface-color);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary-color);
}

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

.footer a:hover {
    color: var(--primary-color);
}