/* ============================================================
   RELL S.R.L. — base.css
   Stili base: body, tipografia, link, focus, selezione
   ============================================================ */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@300;400;500;600;700;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* --------------------------------------------------------
   BODY BASE
-------------------------------------------------------- */
body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--weight-normal);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* --------------------------------------------------------
   TIPOGRAFIA BASE
-------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text);
}

h1 { font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl)); }
h2 { font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl)); }
h3 { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
    max-width: 72ch;
}

p + p {
    margin-top: var(--space-4);
}

strong, b {
    font-weight: var(--weight-semibold);
    color: var(--color-text);
}

em, i {
    font-style: italic;
}

small {
    font-size: var(--text-sm);
    color: var(--color-text-dim);
}

/* --------------------------------------------------------
   LINK
-------------------------------------------------------- */
a {
    color: var(--color-accent-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

/* --------------------------------------------------------
   FOCUS STATES (accessibilità)
-------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* --------------------------------------------------------
   SELEZIONE TESTO
-------------------------------------------------------- */
::selection {
    background-color: var(--color-accent);
    color: white;
}

/* --------------------------------------------------------
   SCROLLBAR CUSTOM
-------------------------------------------------------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: var(--radius-full);
}

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

/* --------------------------------------------------------
   HELPER CLASSES — Tipografia
-------------------------------------------------------- */
.text-accent        { color: var(--color-accent); }
.text-muted         { color: var(--color-text-muted); }
.text-dim           { color: var(--color-text-dim); }
.text-silver        { color: var(--color-silver); }
.text-upper         { text-transform: uppercase; letter-spacing: var(--tracking-wider); }
.text-center        { text-align: center; }
.text-right         { text-align: right; }
.font-display       { font-family: var(--font-display); }

/* --------------------------------------------------------
   DIVISORE
-------------------------------------------------------- */
.divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-8) 0;
}

/* --------------------------------------------------------
   BADGE / TAG
-------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    border-radius: var(--radius-full);
    background-color: var(--color-accent-glow);
    color: var(--color-accent-light);
    border: 1px solid rgba(200, 88, 26, 0.3);
}

/* --------------------------------------------------------
   IMMAGINI
-------------------------------------------------------- */
img {
    height: auto;
    max-width: 100%;
    object-fit: cover;
}

/* Lazy loading */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

img[loading="lazy"].loaded,
img.loaded {
    opacity: 1;
}