:root {
    --primary-color: #00C0B0; 
    --secondary-color: #388E3C; 
    --background-color: #0A0A0A; 
    --surface-color: #1A1A1A; 
    --text-color: #F0F0F0; 
    --text-color-dark: #B0B0B0; 
    --white: #FFFFFF;
    --font-family: 'Poppins', sans-serif;
    --header-height: 70px; 
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7; 
}

.container {
    max-width: 1200px; 
    margin: 0 auto;
    padding: 0 25px; 
}

.cta-button {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color)); 
    color: var(--white);
    padding: 12px 30px; 
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease; 
    display: inline-block;
    box-shadow: 0 6px 15px rgba(0, 192, 176, 0.4); 
    border: none; 
    font-size: 1rem;
}

.cta-button:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color)); 
    transform: translateY(-5px); 
    box-shadow: 0 10px 20px rgba(56, 142, 60, 0.5); 
}

.cta-button.disabled {
    background: #444; 
    color: #888; 
    cursor: not-allowed;
    border: none;
    box-shadow: none; 
    transform: none; 
    opacity: 0.8; 
    pointer-events: none; 
}
.cta-button.disabled:hover {
    transform: none;
    box-shadow: none;
    background: #444;
    color: #888;
}

.secondary-button {
    background-color: transparent; 
    color: var(--primary-color); 
    padding: 12px 30px; 
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--primary-color); 
    transition: all 0.3s ease; 
    display: inline-block;
    font-size: 1rem;
}

.secondary-button:hover {
    background-color: var(--primary-color); 
    color: var(--white); 
    transform: translateY(-5px); 
    box-shadow: 0 6px 15px rgba(0, 191, 166, 0.3); 
}

.section {
    padding: 100px 0; 
}

.section h2 {
    text-align: center;
    font-size: 3.5rem; 
    margin-bottom: 1.5rem; 
    font-weight: 700;
    color: var(--white);
    text-shadow: 0 2px 5px rgba(0,0,0,0.2); 
}

.section-subtitle {
    text-align: center;
    color: var(--text-color-dark);
    margin-bottom: 5rem; 
    max-width: 700px; 
    margin-left: auto;
    margin-right: auto;
    font-size: 1.2rem; 
}