/* =================================================================
   ISO TECH — Universal Converter — style.css
   Color palette and components aligned with isotech-ai.it
   ================================================================= */

:root {
    --color-primary:       #0047AB;
    --color-primary-light: #1A66D4;
    --color-primary-glow:  rgba(0, 71, 171, 0.3);
    --color-bg:            #050505;
    --color-surface:       #0D0D0D;
    --color-surface-2:     #0e1520;
    --color-text:          #F5F5F5;
    --color-muted:         rgba(245, 245, 245, 0.45);
    --color-border:        rgba(0, 71, 171, 0.25);
    --color-border-soft:   rgba(245, 245, 245, 0.06);
    --color-err:           #ff6b8a;
    --color-ok:            #4dd68a;
    --font-sans:           'Inter', system-ui, -apple-system, sans-serif;
    --transition:          0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100dvh;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    animation: pageFadeIn 0.5s ease both;
}
@keyframes pageFadeIn { from { opacity: 0; } to { opacity: 1; } }

::selection { background: var(--color-primary); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }

/* ── NAVBAR ───────────────────────────────────────────────────── */
.navbar {
    position: sticky; top: 0; z-index: 100;
    width: 100%; height: 64px; padding: 0 2rem;
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(5, 5, 5, 0.65);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    border-bottom: 1px solid rgba(0, 71, 171, 0.18);
}

.navbar__logo {
    font-size: 1.2rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--color-primary-light); text-decoration: none;
    transition: color var(--transition), text-shadow var(--transition);
}
.navbar__logo:hover { color: var(--color-text); text-shadow: 0 0 20px var(--color-primary-glow); }
.navbar__logo::after {
    content: ''; display: inline-block; width: 5px; height: 5px; border-radius: 50%;
    background: var(--color-primary); box-shadow: 0 0 6px var(--color-primary);
    margin-left: 4px; vertical-align: middle; position: relative; top: -1px;
}

.navbar__links {
    display: flex; align-items: center; gap: 0.25rem; list-style: none;
    position: absolute; left: 50%; transform: translateX(-50%);
}
.navbar__links a {
    padding: 0.45rem 0.9rem; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.04em;
    color: rgba(245, 245, 245, 0.6); border-radius: 6px; text-decoration: none; position: relative;
    transition: color var(--transition), background var(--transition);
}
.navbar__links a::after {
    content: ''; position: absolute; bottom: 4px; left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: calc(100% - 1.8rem); height: 1px;
    background: var(--color-primary-light); border-radius: 2px;
    transition: transform var(--transition); transform-origin: center;
}
.navbar__links a:hover { color: var(--color-text); background: rgba(0, 71, 171, 0.08); }
.navbar__links a:hover::after { transform: translateX(-50%) scaleX(1); }

.navbar__cta {
    white-space: nowrap; flex-shrink: 0; display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.45rem 1.1rem; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--color-primary-light);
    border: 1px solid var(--color-primary); border-radius: 6px; background: transparent;
    cursor: pointer; text-decoration: none;
    transition: color var(--transition), background var(--transition),
                border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.navbar__cta:hover {
    color: var(--color-text); background: var(--color-primary); border-color: var(--color-primary-light);
    box-shadow: 0 0 20px var(--color-primary-glow), 0 0 60px rgba(0, 71, 171, 0.12);
    transform: translateY(-1px);
}
.navbar__cta svg { width: 13px; height: 13px; flex-shrink: 0; transition: transform var(--transition); }
.navbar__cta:hover svg { transform: translateX(3px); }

.navbar__hamburger {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 36px; height: 36px; padding: 6px; border-radius: 6px;
    cursor: pointer; background: transparent; border: none;
    transition: background var(--transition);
}
.navbar__hamburger:hover { background: rgba(0, 71, 171, 0.1); }
.navbar__hamburger span {
    display: block; width: 100%; height: 1.5px; background: var(--color-text); border-radius: 2px;
    transform-origin: center; transition: transform var(--transition), opacity var(--transition);
}
.navbar__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.navbar__mobile {
    display: none; position: fixed; top: 64px; left: 0; right: 0;
    padding: 1rem 1.5rem 1.5rem;
    background: rgba(5, 5, 5, 0.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column; gap: 0.25rem;
    opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
    z-index: 99;
}
.navbar__mobile.open { display: flex; opacity: 1; transform: translateY(0); pointer-events: auto; }
.navbar__mobile a {
    padding: 0.75rem 1rem; font-size: 0.9375rem; font-weight: 500;
    color: rgba(245, 245, 245, 0.65); border-radius: 6px; text-decoration: none;
    transition: color var(--transition), background var(--transition);
}
.navbar__mobile a:hover { color: var(--color-text); background: rgba(0, 71, 171, 0.1); }
.navbar__mobile .navbar__cta { margin-top: 0.75rem; width: 100%; justify-content: center; }

/* ── HERO / LAYOUT ────────────────────────────────────────────── */
.wrap { max-width: 900px; margin: 0 auto; padding: 56px 16px 0; width: 100%; flex: 1; }

.eyebrow {
    display: block; text-align: center;
    font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--color-primary-light); margin-bottom: 0.75rem;
}

h1 {
    font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 900; letter-spacing: -0.03em;
    text-align: center; margin-bottom: 8px; line-height: 1.1;
    background: linear-gradient(135deg, #F5F5F5 30%, #0047AB);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
h1 span {
    background: linear-gradient(135deg, var(--color-primary-light), #00CFFF);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

.sub {
    text-align: center; color: var(--color-muted);
    margin-bottom: 14px; font-size: 0.9375rem; line-height: 1.6;
}

/* Entrance animation (isotech-ai.it hero style) */
.reveal {
    opacity: 0;
    filter: blur(10px) brightness(2);
    transform: translateY(20px);
    animation: apparizioneInter 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.reveal--delay  { animation-delay: 0.35s; }
.reveal--delay2 { animation-delay: 0.6s; }

@keyframes apparizioneInter {
    to { opacity: 1; filter: blur(0) brightness(1); transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-delay: 0s !important;
    }
}

.badges { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 26px; }
.badge {
    background: rgba(0, 71, 171, 0.12); color: var(--color-primary-light);
    font-size: 0.625rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    padding: 3px 9px; border-radius: 99px; border: 1px solid rgba(0, 71, 171, 0.2);
}

/* ── DROP ZONE ────────────────────────────────────────────────── */
#drop {
    border: 1px dashed var(--color-primary-light); border-radius: 12px;
    padding: 48px 20px; text-align: center; cursor: pointer;
    background: var(--color-surface); position: relative; overflow: hidden;
    transition: border-color var(--transition), background var(--transition),
                box-shadow var(--transition), transform var(--transition);
}
#drop::before {
    content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
    background: radial-gradient(circle at 50% 0%, rgba(0, 71, 171, 0.12), transparent 70%);
    opacity: 0; transition: opacity var(--transition);
}
#drop:hover, #drop.over {
    background: var(--color-surface-2); border-color: var(--color-primary-light);
    box-shadow: 0 0 0 1px rgba(0, 71, 171, 0.2), 0 0 40px rgba(0, 71, 171, 0.08);
    transform: translateY(-2px);
}
#drop:hover::before, #drop.over::before { opacity: 1; }
#drop p { color: var(--color-muted); margin-top: 8px; font-size: 0.875rem; }
#drop .big svg { width: 44px; height: 44px; margin: 0 auto 6px; display: block; }

#fileInput { display: none; }

/* ── PREVIEW ──────────────────────────────────────────────────── */
#preview {
    display: none; margin-top: 24px;
    background: var(--color-surface); border: 1px solid var(--color-border-soft);
    border-radius: 12px; padding: 20px; gap: 20px; align-items: center;
}
#preview.show { display: flex; flex-wrap: wrap; }

#thumbBox {
    width: 110px; height: 110px; border-radius: 12px; overflow: hidden; flex-shrink: 0;
    background: repeating-conic-gradient(#151515 0% 25%, #0a0a0a 0% 50%) 0 0 / 20px 20px;
    border: 1px solid var(--color-border-soft);
    display: flex; align-items: center; justify-content: center;
}
#thumb { max-width: 100%; max-height: 100%; }
#thumbIcon svg { width: 44px; height: 44px; display: block; }

#info { flex: 1; min-width: 180px; }
#info b { display: block; word-break: break-all; margin-bottom: 4px; }
#info span { color: var(--color-muted); font-size: 0.88rem; display: block; }

/* ── BUTTONS ──────────────────────────────────────────────────── */
#allBtn {
    background: transparent; color: var(--color-primary-light);
    border: 1px solid var(--color-primary); border-radius: 6px;
    padding: 0.6rem 1.2rem; font-size: 0.8125rem; font-weight: 600;
    letter-spacing: 0.06em; text-transform: uppercase; cursor: pointer; font-family: inherit;
    transition: color var(--transition), background var(--transition),
                border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
#allBtn:hover {
    color: var(--color-text); background: var(--color-primary); border-color: var(--color-primary-light);
    box-shadow: 0 0 20px var(--color-primary-glow), 0 0 60px rgba(0, 71, 171, 0.12);
    transform: translateY(-1px);
}

/* ── BACKGROUND REMOVAL ───────────────────────────────────────── */
#bgTools {
    display: none; margin-top: 16px;
    background: var(--color-surface); border: 1px solid var(--color-border-soft);
    border-radius: 12px; padding: 18px 20px;
}
#bgTools.show { display: block; }
#bgTools h2 {
    font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--color-primary-light); margin-bottom: 14px;
}
.bgRow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.bgBtn {
    background: transparent; color: var(--color-primary-light);
    border: 1px solid var(--color-primary); border-radius: 6px;
    padding: 0.55rem 1rem; cursor: pointer; font-weight: 600; font-size: 0.75rem;
    letter-spacing: 0.05em; text-transform: uppercase; font-family: inherit;
    transition: color var(--transition), background var(--transition),
                box-shadow var(--transition), transform var(--transition);
}
.bgBtn:hover:not(:disabled) {
    color: var(--color-text); background: var(--color-primary);
    box-shadow: 0 0 20px var(--color-primary-glow); transform: translateY(-1px);
}
.bgBtn:disabled { opacity: 0.45; cursor: not-allowed; }
.bgBtn.ghost { border-color: var(--color-border-soft); color: var(--color-muted); }
.bgBtn.ghost:hover:not(:disabled) { background: rgba(245, 245, 245, 0.06); color: var(--color-text); box-shadow: none; }

.tolBox { display: flex; align-items: center; gap: 8px; color: var(--color-muted); font-size: 0.75rem; }
#tol { accent-color: var(--color-primary-light); }

#bgStatus { margin-top: 10px; font-size: 0.8rem; min-height: 1em; }
#bgStatus.ok { color: var(--color-ok); }
#bgStatus.err { color: var(--color-err); }
#bgStatus.busy { color: var(--color-primary-light); }

/* ── FORMAT GRID ──────────────────────────────────────────────── */
#gridTitle {
    display: none; margin-top: 30px;
    font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--color-primary-light);
}
#gridTitle.show { display: block; }

#grid {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 14px; margin-top: 12px;
}
#grid.show { display: grid; }

.fmt {
    background: var(--color-surface); border-radius: 12px; padding: 1.25rem;
    display: flex; flex-direction: column; gap: 8px;
    border: 1px solid var(--color-border-soft); position: relative; overflow: hidden;
    opacity: 0; transform: translateY(12px);
    animation: cardIn 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    transition: border-color var(--transition), box-shadow var(--transition),
                transform var(--transition), background var(--transition);
}
@keyframes cardIn { to { opacity: 1; transform: translateY(0); } }
.fmt::before {
    content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
    background: radial-gradient(circle at 50% 0%, rgba(0, 71, 171, 0.12), transparent 70%);
    opacity: 0; transition: opacity var(--transition);
}
.fmt:hover {
    border-color: var(--color-primary); background: var(--color-surface-2);
    transform: translateY(-4px);
    box-shadow: 0 0 0 1px rgba(0, 71, 171, 0.2), 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 71, 171, 0.08);
}
.fmt:hover::before { opacity: 1; }
.fmt h3 { font-size: 0.9375rem; font-weight: 700; letter-spacing: 0.02em; }
.fmt small { color: var(--color-muted); font-size: 0.75rem; line-height: 1.5; flex: 1; }
.fmt button {
    background: transparent; color: var(--color-primary-light);
    border: 1px solid var(--color-primary); border-radius: 6px;
    padding: 0.5rem; cursor: pointer; font-weight: 600; font-size: 0.75rem;
    letter-spacing: 0.06em; text-transform: uppercase; font-family: inherit;
    position: relative; z-index: 1;
    transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}
.fmt button:hover:not(:disabled) { color: var(--color-text); background: var(--color-primary); box-shadow: 0 0 20px var(--color-primary-glow); }
.fmt button:disabled { opacity: 0.45; cursor: not-allowed; }

.status { font-size: 0.75rem; min-height: 1em; }
.status.ok { color: var(--color-ok); }
.status.err { color: var(--color-err); }
.status.busy { color: var(--color-primary-light); }

/* ── FOOTER (isotech-ai.it style) ─────────────────────────────── */
footer { width: 100%; border-top: 1px solid rgba(0, 71, 171, 0.12); margin-top: 48px; }

.site-footer {
    padding: 2.5rem 2rem;
    display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem;
    max-width: 1200px; margin: 0 auto; width: 100%;
}
.site-footer__logo {
    font-size: 1rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--color-primary-light); justify-self: start; text-decoration: none;
}
.site-footer__logo::after {
    content: ''; display: inline-block; width: 5px; height: 5px; border-radius: 50%;
    background: var(--color-primary); box-shadow: 0 0 6px var(--color-primary);
    margin-left: 4px; vertical-align: middle; position: relative; top: -1px;
}
.site-footer__links { display: flex; gap: 1.5rem; list-style: none; justify-self: center; }
.site-footer__links a {
    font-size: 0.8125rem; font-weight: 500; color: rgba(245, 245, 245, 0.4);
    text-decoration: none; transition: color var(--transition);
}
.site-footer__links a:hover { color: var(--color-text); }
.site-footer__copy { font-size: 0.75rem; color: rgba(245, 245, 245, 0.25); justify-self: end; text-align: right; }
.site-footer__contacts {
    grid-column: 1 / -1;
    display: flex; align-items: center; justify-content: center; gap: 0.6rem; flex-wrap: wrap;
    font-size: 0.75rem; margin-top: 0.75rem; letter-spacing: 0.02em;
}
.site-footer__contacts a {
    color: rgba(245, 245, 245, 0.35); text-decoration: none;
    transition: color var(--transition);
}
.site-footer__contacts a:hover { color: var(--color-text); }
.site-footer__sep { color: rgba(245, 245, 245, 0.15); user-select: none; }

/* ── MODAL ────────────────────────────────────────────────────── */
#bgModal, #siteModal {
    position: fixed; inset: 0; background: rgba(5, 5, 5, 0.75);
    display: none; align-items: center; justify-content: center; z-index: 200;
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
#bgModal.show, #siteModal.show { display: flex; }
a.bgBtn { text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.modalCard {
    background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 12px;
    padding: 28px 26px; max-width: 420px; width: 92%; text-align: center;
    box-shadow: 0 0 0 1px rgba(0, 71, 171, 0.15), 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 60px rgba(0, 71, 171, 0.1);
}
.modalCard .big { margin-bottom: 10px; display: flex; justify-content: center; }
.modalCard h3 { margin-bottom: 6px; }
.modalCard p { color: var(--color-muted); font-size: 0.88rem; margin-bottom: 18px; }
.modalBtns { display: flex; flex-direction: column; gap: 10px; }
.modalBtns .bgBtn { width: 100%; }

/* ── RESPONSIVE MOBILE ────────────────────────────────────────── */
@media (max-width: 768px) {
    .navbar { padding: 0 1rem; }
    .navbar__links, .navbar__cta { display: none; }
    .navbar__hamburger { display: flex; }
    .navbar__mobile .navbar__cta { display: inline-flex; }
    .wrap { padding: 32px 14px 0; }
    #drop { padding: 36px 16px; }
    #preview.show { flex-direction: column; align-items: center; text-align: center; }
    #info { min-width: 0; width: 100%; }
    #allBtn { width: 100%; }
    #grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .fmt { padding: 1rem; }
    .bgRow { flex-direction: column; align-items: stretch; }
    .bgBtn { width: 100%; }
    .tolBox { justify-content: center; padding: 0.3rem 0; }
    .site-footer { grid-template-columns: 1fr; justify-items: center; text-align: center; }
    .site-footer__logo { justify-self: center; }
    .site-footer__copy { justify-self: center; text-align: center; }
    .site-footer__links { justify-content: center; flex-wrap: wrap; }
}

@media (max-width: 380px) {
    #grid { grid-template-columns: 1fr; }
    h1 { font-size: 1.7rem; }
}

/* =================================================================
   AGGIUNTE — Layout 3 colonne, spazi sponsor, contenuti SEO,
   footer legale e pagine informative
   ================================================================= */

/* ── 3-COLUMN LAYOUT (desktop) ────────────────────────────────── */
.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    width: 100%;
    max-width: 1560px;
    margin: 0 auto;
    flex: 1;
    align-items: start;
}
.layout > .wrap { flex: initial; }

/* ── SPONSOR SPACES (AdSense placeholder) ─────────────────────── */
.ad-rail { display: none; }

.ad-slot {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
    width: 100%; min-height: 600px;
    border: 1px dashed var(--color-border);
    border-radius: 12px;
    background:
        radial-gradient(circle at 50% 0%, rgba(0, 71, 171, 0.07), transparent 70%),
        var(--color-surface);
    text-align: center; padding: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.ad-slot:hover { border-color: var(--color-primary); box-shadow: 0 0 24px rgba(0, 71, 171, 0.1); }
.ad-slot__label {
    font-size: 0.625rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--color-muted);
}
.ad-slot__label::before {
    content: ''; display: block; width: 5px; height: 5px; border-radius: 50%;
    background: var(--color-primary); box-shadow: 0 0 6px var(--color-primary);
    margin: 0 auto 8px;
}

@media (min-width: 1024px) {
    .ad-rail {
        display: block;
        position: sticky; top: 88px;
        padding-top: 56px;
    }
    .layout { grid-template-columns: 160px minmax(0, 1fr) 160px; padding: 0 20px; }
}
@media (min-width: 1360px) {
    .layout { grid-template-columns: 300px minmax(0, 1fr) 300px; padding: 0 24px; }
}

/* ── CONTENT SECTION (guide) ──────────────────────────────────── */
.seo { margin-top: 64px; border-top: 1px solid var(--color-border-soft); padding-top: 48px; }
.seo h2 {
    font-size: clamp(1.25rem, 3vw, 1.6rem); font-weight: 800; letter-spacing: -0.02em;
    line-height: 1.25; margin-bottom: 0.6rem;
}
.seo > p.lead { color: var(--color-muted); font-size: 0.9375rem; line-height: 1.7; margin-bottom: 1.75rem; max-width: 68ch; }

.steps { list-style: none; display: grid; gap: 14px; margin: 1.5rem 0 3rem; counter-reset: step; }
.step {
    counter-increment: step;
    background: var(--color-surface); border: 1px solid var(--color-border-soft); border-radius: 12px;
    padding: 1.25rem 1.25rem 1.25rem 4.25rem; position: relative;
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.45s ease, transform 0.45s ease, border-color var(--transition), background var(--transition);
}
.step.is-visible { opacity: 1; transform: translateY(0); }
.step:hover { border-color: var(--color-primary); background: var(--color-surface-2); transform: translateY(-2px); }
.step::before {
    content: counter(step, decimal-leading-zero);
    position: absolute; left: 1.25rem; top: 1.3rem;
    font-size: 1.1rem; font-weight: 800; color: var(--color-primary-light);
    text-shadow: 0 0 18px var(--color-primary-glow);
}
.step h3 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 4px; }
.step p { color: var(--color-muted); font-size: 0.875rem; line-height: 1.65; }
.step p a { color: var(--color-primary-light); text-decoration: none; }
.step p a:hover { text-decoration: underline; }

/* FAQ — accordion using native <details> */
.faq { display: grid; gap: 10px; margin-top: 1.25rem; }
.faq details {
    background: var(--color-surface); border: 1px solid var(--color-border-soft); border-radius: 12px;
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition), opacity 0.45s ease, transform 0.45s ease;
    opacity: 0; transform: translateY(16px);
}
.faq details.is-visible { opacity: 1; transform: translateY(0); }
.faq details[open] { border-color: var(--color-primary); box-shadow: 0 0 24px rgba(0, 71, 171, 0.15); }
.faq summary {
    list-style: none; cursor: pointer; user-select: none;
    display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
    padding: 1.1rem 1.25rem; font-size: 0.9375rem; font-weight: 600;
    transition: color var(--transition), background var(--transition);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: rgba(0, 71, 171, 0.06); color: var(--color-primary-light); }
.faq summary::after {
    content: '+'; flex-shrink: 0; width: 32px; height: 32px; margin-top: -3px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--color-primary); border-radius: 9px;
    font-size: 1.15rem; font-weight: 400; line-height: 1; color: var(--color-primary-light);
    transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}
.faq details[open] summary::after {
    transform: rotate(45deg);
    background: rgba(0, 71, 171, 0.18); border-color: var(--color-primary-light);
    color: var(--color-primary-light);
}
.faq details > .faq__body {
    display: block; max-height: 0; overflow: hidden;
    margin: 0 1.25rem; padding: 0; color: var(--color-muted); font-size: 0.875rem; line-height: 1.7;
    border-top: 1px solid transparent;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding var(--transition), border-color var(--transition);
}
.faq details[open] > .faq__body {
    max-height: 500px; padding: 0.9rem 0 1.1rem; border-top-color: var(--color-border-soft);
}
.faq .faq__body a { color: var(--color-primary-light); text-decoration: none; }
.faq .faq__body a:hover { text-decoration: underline; }

/* ── FOOTER: legal links + project note ───────────────────────── */
.site-footer__legal {
    grid-column: 1 / -1;
    display: flex; align-items: center; justify-content: center; gap: 1.25rem; flex-wrap: wrap;
    list-style: none; margin-top: 1.25rem; padding-top: 1.25rem;
    border-top: 1px solid var(--color-border-soft);
}
.site-footer__legal a {
    font-size: 0.75rem; font-weight: 500; color: rgba(245, 245, 245, 0.4);
    text-decoration: none; transition: color var(--transition);
}
.site-footer__legal a:hover { color: var(--color-text); }
.site-footer__note {
    grid-column: 1 / -1; text-align: center;
    font-size: 0.75rem; line-height: 1.7; color: rgba(245, 245, 245, 0.3);
    max-width: 620px; margin: 0.5rem auto 0;
}
.site-footer__note a { color: rgba(245, 245, 245, 0.45); text-decoration: none; transition: color var(--transition); }
.site-footer__note a:hover { color: var(--color-text); }

/* ── INFORMATIONAL / LEGAL PAGES ──────────────────────────────── */
.page {
    width: 100%; max-width: 760px; margin: 0 auto; padding: 56px 16px 0; flex: 1;
}
.page > .eyebrow { text-align: left; }
.page h1 { text-align: left; font-size: clamp(1.7rem, 4vw, 2.4rem); margin-bottom: 6px; }
.page .updated { color: rgba(245, 245, 245, 0.3); font-size: 0.75rem; margin-bottom: 2.25rem; }

/* FAQ page: centered hero-style header */
.page--faq { max-width: 820px; }
.page--faq > .eyebrow {
    display: flex; align-items: center; justify-content: center; gap: 12px;
}
.page--faq > .eyebrow::before, .page--faq > .eyebrow::after {
    content: ''; width: 28px; height: 1px; background: var(--color-primary);
}
.page--faq h1 { text-align: center; }
.page--faq > .updated {
    text-align: center; max-width: 560px; margin-left: auto; margin-right: auto;
    font-size: 0.9375rem; color: var(--color-muted);
}
.page h2 {
    font-size: 1.15rem; font-weight: 800; letter-spacing: -0.01em;
    margin: 2.25rem 0 0.6rem;
}
.page h3 { font-size: 0.9375rem; font-weight: 700; margin: 1.4rem 0 0.4rem; }
.page p, .page li { color: var(--color-muted); font-size: 0.9rem; line-height: 1.75; }
.page p { margin-bottom: 0.9rem; }
.page ul { margin: 0 0 1rem 1.25rem; }
.page li { margin-bottom: 0.4rem; }
.page a { color: var(--color-primary-light); text-decoration: none; }
.page a:hover { text-decoration: underline; }
.page .card {
    background: var(--color-surface); border: 1px solid var(--color-border-soft); border-radius: 12px;
    padding: 1.25rem 1.4rem; margin: 1.25rem 0;
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.45s ease, transform 0.45s ease, border-color var(--transition), box-shadow var(--transition);
}
.page .card.is-visible { opacity: 1; transform: translateY(0); }
.page .card:hover { border-color: var(--color-border); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25); }

/* Contact form (mailto) */
.contact-form { display: grid; gap: 14px; margin-top: 1.5rem; max-width: 560px; }
.contact-form label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-primary-light); display: block; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
    width: 100%; background: var(--color-surface); color: var(--color-text);
    border: 1px solid var(--color-border-soft); border-radius: 8px;
    padding: 0.75rem 0.9rem; font-family: inherit; font-size: 0.9rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--color-primary);
    box-shadow: 0 0 0 1px rgba(0, 71, 171, 0.25), 0 0 24px rgba(0, 71, 171, 0.08);
}
.contact-form textarea { min-height: 150px; resize: vertical; }
.contact-form .hint { font-size: 0.75rem; color: rgba(245, 245, 245, 0.3); }
.contact-form .cf-consent label {
    display: flex; align-items: flex-start; gap: 8px;
    font-size: 0.82rem; font-weight: 400; letter-spacing: normal; text-transform: none;
    color: var(--color-text);
}
.contact-form .cf-consent input[type="checkbox"] { width: auto; flex: 0 0 auto; margin-top: 3px; }

/* ── RESPONSIVE: ad rails hidden below 1024px ─────────────────── */
@media (max-width: 1023.98px) {
    .ad-rail { display: none; }
}

/* ── Guide anchor: smooth scrolling and offset for sticky navbar ── */
html { scroll-behavior: smooth; }
#guida { scroll-margin-top: 84px; }