/* ===== VARIABLES ===== */
:root {
    /* Tema scuro fisso */
    --bg-color: #0f0f1e;
    --container-color: #1a1a2e;
    --card-color: #16213e;
    --text-color: #f8fafc;
    --text-light: #cbd5e1;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Common values */
    --header-height: 3.5rem;
    --border-radius: 0.75rem;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    transition: var(--transition);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== REUSABLE CLASSES ===== */
.container {
    max-width: 1120px;
    margin-inline: 1.5rem;
}

.section {
    padding: 5rem 0 2rem;
}

.section__title {
    text-align: center;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section__subtitle {
    display: block;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.button--primary {
    background: var(--accent-color);
    color: white;
}

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

.button--secondary {
    background: var(--card-color);
    color: var(--text-color);
    border: 2px solid var(--accent-color);
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 0.6rem;
    background: var(--card-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 0.5rem;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}