/* Infosite Srl — corporate website
   Design: Apple-inspired minimalism
   Palette: #0A0A0A / #0071E3 / #FFFFFF / #F5F5F7
*/

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

:root {
    --c-black: #0A0A0A;
    --c-blue: #0071E3;
    --c-blue-dark: #0058B0;
    --c-white: #FFFFFF;
    --c-gray: #F5F5F7;
    --c-gray-2: #E8E8ED;
    --c-text: #1D1D1F;
    --c-text-2: #6E6E73;
    --c-border: #D2D2D7;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 18px;
    --container: 1200px;
    --header-h: 64px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
    color: var(--c-text);
    background: var(--c-white);
    line-height: 1.5;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-blue); text-decoration: none; transition: color .15s ease, opacity .15s ease; }
a:hover { color: var(--c-blue-dark); }

img, svg { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4, h5, h6 { font-weight: 600; letter-spacing: -0.022em; line-height: 1.1; color: var(--c-text); }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.75rem); }
h4 { font-size: 1.25rem; }
p { font-size: 1.05rem; color: var(--c-text-2); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== HEADER ===== */
.header {
    position: sticky; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    height: var(--header-h);
}
.header-inner {
    height: 100%; display: flex; align-items: center; justify-content: space-between;
    max-width: var(--container); margin: 0 auto; padding: 0 24px;
}
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.15rem; color: var(--c-blue); letter-spacing: -0.02em; }
.logo-mark { width: 28px; height: 28px; }

.nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
    color: var(--c-text); font-size: 0.92rem; font-weight: 500;
    padding: 8px 14px; border-radius: 8px; transition: background-color .15s ease;
}
.nav-link:hover { background: var(--c-gray); color: var(--c-text); }
.nav-link.active { color: var(--c-blue); }

.nav-tools { display: flex; align-items: center; gap: 12px; }
.lang-switch {
    display: flex; align-items: center; gap: 4px; font-size: 0.85rem; color: var(--c-text-2);
    border: 1px solid var(--c-border); border-radius: 999px; padding: 4px 10px;
}
.lang-switch a { color: var(--c-text-2); padding: 2px 6px; border-radius: 999px; }
.lang-switch a.active { background: var(--c-black); color: var(--c-white); }

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 11px 22px; border-radius: 999px;
    font-size: 0.95rem; font-weight: 500; cursor: pointer;
    border: 0; transition: all .18s ease; line-height: 1; gap: 8px;
    white-space: nowrap;
}
.btn-primary { background: var(--c-blue); color: var(--c-white); }
.btn-primary:hover { background: var(--c-blue-dark); color: var(--c-white); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--c-text); border: 1px solid var(--c-border); }
.btn-ghost:hover { background: var(--c-gray); color: var(--c-text); }
.btn-dark { background: var(--c-white); color: var(--c-black); }
.btn-dark:hover { background: var(--c-gray); color: var(--c-black); }
.btn-light { background: rgba(255,255,255,0.1); color: var(--c-white); border: 1px solid rgba(255,255,255,0.2); }
.btn-light:hover { background: rgba(255,255,255,0.2); color: var(--c-white); }
.btn-lg { padding: 14px 30px; font-size: 1rem; }

/* hamburger */
.hamburger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.hamburger svg { width: 24px; height: 24px; stroke: var(--c-text); }

@media (max-width: 980px) {
    .nav-desktop { display: none; }
    .hamburger { display: block; }
    .nav-tools .btn-primary { display: none; }
}
.mobile-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    transform: translateY(-100%); transition: transform .25s ease;
    z-index: 999; padding: 32px 24px; overflow-y: auto;
}
.mobile-nav.open { transform: translateY(0); }
.mobile-nav .nav-link { display: block; padding: 16px 0; border-bottom: 1px solid var(--c-border); font-size: 1.1rem; }

/* ===== HERO ===== */
.hero {
    background: linear-gradient(135deg, #0A0A0A 0%, #1A1A2E 100%);
    color: var(--c-white);
    min-height: 88vh;
    display: flex; align-items: center; padding: 120px 0 80px;
    position: relative; overflow: hidden;
}
.hero::after {
    content: ""; position: absolute; top: 50%; right: -20%; width: 60%; height: 200%;
    background: radial-gradient(closest-side, rgba(0,113,227,0.18), transparent 70%);
    transform: translateY(-50%); pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 900px; }
.hero h1 { color: var(--c-white); font-size: clamp(2.8rem, 6.5vw, 5rem); margin-bottom: 24px; }
.hero .lede { font-size: clamp(1.1rem, 1.8vw, 1.4rem); color: rgba(255,255,255,0.78); margin-bottom: 40px; max-width: 720px; line-height: 1.5; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-mini { padding: 100px 0 60px; min-height: auto; background: var(--c-gray); color: var(--c-text); }
.hero-mini::after { display: none; }
.hero-mini h1 { color: var(--c-text); font-size: clamp(2rem, 4vw, 3rem); }
.hero-mini .lede { color: var(--c-text-2); }

/* ===== SECTION ===== */
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.section-gray { background: var(--c-gray); }
.section-dark { background: var(--c-black); color: var(--c-white); }
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--c-white); }
.section-dark p { color: rgba(255,255,255,0.7); }
.eyebrow { font-size: 0.85rem; font-weight: 600; color: var(--c-blue); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }
.section-title { text-align: center; margin-bottom: 64px; }
.section-title h2 { margin-bottom: 16px; }
.section-title p { font-size: 1.15rem; max-width: 700px; margin: 0 auto; }

/* ===== STATS ===== */
.stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 60px 0;
    border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border);
}
.stat { text-align: center; }
.stat-num { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 700; color: var(--c-blue); letter-spacing: -0.03em; line-height: 1; }
.stat-label { font-size: 0.95rem; color: var(--c-text-2); margin-top: 8px; }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, 1fr); gap: 32px; } }

/* ===== CARDS GRID ===== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
    background: var(--c-white); border-radius: var(--radius-lg);
    padding: 36px; border: 1px solid var(--c-border);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-icon {
    width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
    background: var(--c-gray); border-radius: 14px; margin-bottom: 20px;
    color: var(--c-blue);
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 12px; font-size: 1.3rem; }
.card p { font-size: 0.98rem; }
.card-link { display: inline-block; margin-top: 16px; font-weight: 500; font-size: 0.95rem; }
.card-link::after { content: " →"; transition: transform .2s ease; display: inline-block; }
.card-link:hover::after { transform: translateX(3px); }

.card-light { background: var(--c-gray); border: 0; }
.card-light:hover { background: var(--c-white); border: 1px solid transparent; box-shadow: var(--shadow-lg); }

/* ===== WHY ===== */
.why-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
@media (max-width: 900px) { .why-list { grid-template-columns: 1fr; gap: 32px; } }
.why-item { text-align: center; }
.why-icon { width: 80px; height: 80px; background: var(--c-gray); border-radius: 50%; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; color: var(--c-blue); }
.why-icon svg { width: 36px; height: 36px; }

/* ===== TESTIMONIALS ===== */
.testimonial { background: var(--c-white); padding: 36px; border-radius: var(--radius-lg); border: 1px solid var(--c-border); }
.testimonial-quote { font-size: 1.05rem; color: var(--c-text); font-style: italic; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.avatar {
    width: 44px; height: 44px; border-radius: 50%;
    background: linear-gradient(135deg, var(--c-blue), #4FA8FF);
    color: var(--c-white); font-weight: 600; font-size: 0.95rem;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.testimonial-name { font-weight: 600; font-size: 0.95rem; }
.testimonial-role { font-size: 0.85rem; color: var(--c-text-2); }

/* ===== CTA BLOCK ===== */
.cta-block {
    background: var(--c-black); color: var(--c-white);
    padding: 100px 24px; text-align: center; border-radius: 24px;
    max-width: var(--container); margin: 80px auto;
}
.cta-block h2 { color: var(--c-white); font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 16px; }
.cta-block p { color: rgba(255,255,255,0.7); font-size: 1.15rem; margin-bottom: 32px; max-width: 580px; margin-left: auto; margin-right: auto; }

/* ===== TIMELINE ===== */
.timeline { position: relative; padding-left: 32px; max-width: 700px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--c-border); }
.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item::before { content: ""; position: absolute; left: -32px; top: 6px; width: 18px; height: 18px; border-radius: 50%; background: var(--c-blue); border: 3px solid var(--c-white); box-shadow: 0 0 0 1px var(--c-border); }
.timeline-year { font-weight: 700; color: var(--c-blue); margin-bottom: 6px; font-size: 0.95rem; }

/* ===== TEAM ===== */
.team-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
@media (max-width: 980px) { .team-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 580px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
.team-card { text-align: center; padding: 24px 12px; }
.team-avatar {
    width: 96px; height: 96px; border-radius: 50%;
    background: linear-gradient(135deg, var(--c-blue), #4FA8FF);
    color: var(--c-white); font-weight: 700; font-size: 1.6rem;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
}
.team-name { font-weight: 600; margin-bottom: 4px; }
.team-role { font-size: 0.9rem; color: var(--c-text-2); }

/* ===== SERVICES DETAIL ===== */
.service-block { padding: 80px 0; border-bottom: 1px solid var(--c-border); }
.service-block:last-child { border-bottom: 0; }
.service-block .grid-2 { gap: 60px; align-items: center; }
.service-icon-lg {
    width: 72px; height: 72px; background: var(--c-gray); border-radius: 18px;
    display: inline-flex; align-items: center; justify-content: center; color: var(--c-blue);
    margin-bottom: 24px;
}
.service-icon-lg svg { width: 36px; height: 36px; }
.service-illustration {
    aspect-ratio: 4/3; background: var(--c-gray); border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center; color: var(--c-blue);
    overflow: hidden;
}
.service-illustration svg { width: 50%; height: 50%; }
.service-illustration.service-photo { padding: 0; aspect-ratio: 4/3; }
.service-illustration.service-photo img {
    width: 100%; height: 100%;
    object-fit: cover; object-position: center;
    display: block; transition: transform .4s ease;
}
.service-illustration.service-photo:hover img { transform: scale(1.04); }
.service-features { list-style: none; margin-top: 20px; }
.service-features li { padding: 10px 0; padding-left: 28px; position: relative; color: var(--c-text); border-bottom: 1px solid var(--c-gray-2); }
.service-features li::before { content: "✓"; position: absolute; left: 0; top: 10px; color: var(--c-blue); font-weight: 700; }

/* ===== PORTFOLIO ===== */
.filters { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 48px; }
.filter-btn {
    padding: 8px 18px; border-radius: 999px; border: 1px solid var(--c-border);
    background: var(--c-white); color: var(--c-text); cursor: pointer; font-size: 0.9rem;
    transition: all .15s ease;
}
.filter-btn:hover, .filter-btn.active { background: var(--c-black); color: var(--c-white); border-color: var(--c-black); }
.portfolio-card { background: var(--c-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--c-border); transition: transform .25s ease, box-shadow .25s ease; }
.portfolio-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.portfolio-thumb {
    aspect-ratio: 16/10; background: var(--c-gray);
    display: flex; align-items: center; justify-content: center;
    color: var(--c-blue); position: relative; overflow: hidden;
}
.portfolio-thumb svg { width: 60px; height: 60px; opacity: 0.7; }
.portfolio-thumb.portfolio-photo img {
    width: 100%; height: 100%;
    object-fit: cover; object-position: center;
    display: block; transition: transform .4s ease;
}
.portfolio-card:hover .portfolio-thumb.portfolio-photo img { transform: scale(1.05); }
.portfolio-tag { position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.95); color: var(--c-text); font-size: 0.78rem; padding: 4px 10px; border-radius: 999px; font-weight: 500; }
.portfolio-body { padding: 24px; }
.portfolio-body h3 { font-size: 1.2rem; margin-bottom: 8px; }
.portfolio-body p { font-size: 0.92rem; }
.portfolio-meta { display: flex; gap: 12px; margin-top: 14px; font-size: 0.82rem; color: var(--c-text-2); }

/* ===== BLOG ===== */
.article-card { display: flex; flex-direction: column; height: 100%; background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.article-thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, #f0f0f5, #e0e0eb); display: flex; align-items: center; justify-content: center; color: var(--c-blue); }
.article-thumb svg { width: 56px; height: 56px; opacity: 0.6; }
.article-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.article-meta { font-size: 0.82rem; color: var(--c-text-2); margin-bottom: 10px; }
.article-body h3 { font-size: 1.2rem; margin-bottom: 10px; line-height: 1.3; }
.article-body p { flex: 1; font-size: 0.95rem; }

/* ===== FORM ===== */
.form { max-width: 720px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-bottom: 18px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.92rem; font-weight: 500; margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 14px 16px; font-size: 0.98rem;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    background: var(--c-white); color: var(--c-text);
    font-family: inherit; transition: border-color .15s ease, box-shadow .15s ease;
}
.form-control:focus { outline: none; border-color: var(--c-blue); box-shadow: 0 0 0 3px rgba(0,113,227,0.15); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-check { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; color: var(--c-text-2); }
.form-check input { margin-top: 4px; }
.form-check a { color: var(--c-blue); }

.contact-info-grid { display: grid; grid-template-columns: 2fr 1.2fr; gap: 60px; align-items: start; }
@media (max-width: 900px) { .contact-info-grid { grid-template-columns: 1fr; gap: 40px; } }
.info-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--c-border); }
.info-item:last-child { border-bottom: 0; }
.info-icon { width: 40px; height: 40px; background: var(--c-gray); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--c-blue); flex-shrink: 0; }
.info-icon svg { width: 20px; height: 20px; }
.info-text strong { display: block; font-size: 0.85rem; color: var(--c-text-2); font-weight: 500; margin-bottom: 2px; text-transform: uppercase; letter-spacing: 0.05em; }
.info-text { font-size: 0.98rem; }

/* ===== AREA CLIENTI BIG CTA ===== */
.portal-card {
    background: linear-gradient(135deg, var(--c-blue), #4FA8FF);
    color: var(--c-white); border-radius: 24px;
    padding: 80px 60px; text-align: center;
    max-width: 800px; margin: 0 auto;
}
.portal-card h2 { color: var(--c-white); margin-bottom: 16px; }
.portal-card p { color: rgba(255,255,255,0.92); font-size: 1.15rem; margin-bottom: 32px; }

/* ===== LEGAL PAGES ===== */
.legal-content { max-width: 820px; margin: 0 auto; }
.legal-content h2 { margin: 48px 0 16px; }
.legal-content h3 { margin: 32px 0 12px; font-size: 1.2rem; }
.legal-content p { margin-bottom: 16px; color: var(--c-text); }
.legal-content ul { margin: 0 0 16px 24px; }
.legal-content ul li { margin-bottom: 8px; color: var(--c-text); }
.legal-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.legal-content th, .legal-content td { text-align: left; padding: 12px; border-bottom: 1px solid var(--c-border); font-size: 0.95rem; }
.legal-content th { background: var(--c-gray); font-weight: 600; }

/* ===== FOOTER ===== */
.footer { background: var(--c-black); color: rgba(255,255,255,0.6); padding: 80px 0 32px; font-size: 0.92rem; }
.footer h4 { color: var(--c-white); font-size: 0.92rem; font-weight: 600; margin-bottom: 18px; text-transform: uppercase; letter-spacing: 0.06em; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-tagline { color: rgba(255,255,255,0.7); margin: 12px 0 24px; line-height: 1.5; max-width: 280px; }
.footer .logo { color: var(--c-blue); }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer a { color: rgba(255,255,255,0.6); transition: color .15s ease; }
.footer a:hover { color: var(--c-white); }
.footer-bottom { padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; font-size: 0.82rem; }
.footer-legal { display: flex; gap: 18px; flex-wrap: wrap; }
.social { display: flex; gap: 8px; }
.social a {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex; align-items: center; justify-content: center;
    color: var(--c-white);
}
.social a:hover { background: var(--c-blue); }
.social svg { width: 16px; height: 16px; }

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed; bottom: 20px; left: 20px; right: 20px;
    max-width: 720px; margin: 0 auto;
    background: rgba(10,10,10,0.95);
    backdrop-filter: blur(20px);
    color: var(--c-white); border-radius: var(--radius-lg);
    padding: 20px 24px; box-shadow: var(--shadow-lg);
    z-index: 999;
    display: none;
    align-items: center; justify-content: space-between; gap: 20px;
    flex-wrap: wrap;
}
.cookie-banner.show { display: flex; }
.cookie-banner p { color: rgba(255,255,255,0.8); font-size: 0.92rem; margin: 0; }
.cookie-banner a { color: var(--c-white); text-decoration: underline; }

/* ===== ANIMATIONS ===== */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }

/* utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: 32px; }
.mt-6 { margin-top: 48px; }
.mb-4 { margin-bottom: 32px; }
.lead { font-size: 1.15rem; color: var(--c-text); }

/* responsive */
@media (max-width: 640px) {
    .section { padding: 60px 0; }
    .cta-block { padding: 60px 24px; margin: 40px auto; }
}