/* ============================================
   INFOCER - Base Styles
   Variabili, reset, tipografia, animazioni, footer
   ============================================ */

/* ============================================
   CSS Variables
   ============================================ */

:root {
    --primary-light: #1e8dbd;
    --primary-dark: #035185;
    --text-dark: #141111;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
}

/* ============================================
   Scroll offset per header sticky
   ============================================ */

html {
    scroll-padding-top: 170px;
    scroll-behavior: smooth;
}

/* ============================================
   Back to top button
   ============================================ */

#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-light);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
    z-index: 999;
}

#back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

#back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ============================================
   Global Reset
   ============================================ */

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ============================================
   Footer
   ============================================ */

footer {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.footer-info {
    margin-bottom: 2rem;
    line-height: 2;
}

.footer-info strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1.5rem;
    margin-top: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
}