/* ==========================================================================
   Informatica Per Tutti — Main Stylesheet
   ========================================================================== */

:root {
    --primary: #1b5e8c;
    --secondary: #2e7d4f;
    --accent: #f59e0b;
    --danger: #dc2626;
    --dark: #0f172a;
    --text: #1e293b;
    --text-muted: #64748b;
    --bg: #f6f8fa;
    --bg-alt: #eef2f7;
    --white: #ffffff;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }

.container { max-width: 1140px; margin: 0 auto; padding: 0 1.25rem; }

.skip-link {
    position: absolute; top: -100px; left: 1rem; z-index: 9999;
    background: var(--primary); color: var(--white); padding: 0.5rem 1rem;
    border-radius: 6px;
}
.skip-link:focus { top: 1rem; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.65rem 1.25rem; border-radius: 8px; font-weight: 600; font-size: 0.9375rem;
    border: 2px solid transparent; cursor: pointer; transition: all var(--transition);
    text-decoration: none; line-height: 1.4;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: #164a6e; color: var(--white); }
.btn-secondary { background: var(--bg-alt); color: var(--text); }
.btn-secondary:hover { background: var(--border); color: var(--text); }
.btn-accent { background: var(--accent); color: var(--dark); }
.btn-accent:hover { background: #d97706; color: var(--white); }
.btn-light { background: var(--white); color: var(--primary); }
.btn-light:hover { background: var(--bg-alt); }
.btn-outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline-light:hover { background: rgba(255,255,255,0.15); color: var(--white); }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.875rem; }
.btn-block { width: 100%; }

/* Topbar */
.topbar { background: var(--dark); color: #cbd5e1; font-size: 0.8125rem; padding: 0.4rem 0; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.topbar-left { display: flex; gap: 1.25rem; flex-wrap: wrap; align-items: center; }
.topbar-link { color: #cbd5e1; }
.topbar-link:hover { color: var(--white); }
.topbar-hours { opacity: 0.8; }

/* Header / Nav */
.site-header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.85rem 0; gap: 1rem; }
.brand-logo { height: 36px; width: auto; }
.nav-toggle {
    display: none; flex-direction: column; gap: 5px; background: none; border: none;
    cursor: pointer; padding: 0.5rem;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--dark); transition: var(--transition); }
.main-nav { display: flex; align-items: center; gap: 0.25rem; }
.nav-list { display: flex; list-style: none; margin: 0; padding: 0; gap: 0.15rem; }
.nav-link {
    display: flex; align-items: center; gap: 0.25rem; padding: 0.5rem 0.75rem;
    color: var(--text); font-weight: 500; font-size: 0.9rem; border-radius: 6px;
}
.nav-link:hover, .nav-link.is-active { color: var(--primary); background: var(--bg-alt); }
.has-dropdown { position: relative; }
.dropdown-menu {
    display: none; position: absolute; top: 100%; left: 0; min-width: 220px;
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow); list-style: none; padding: 0.5rem; margin: 0; z-index: 200;
}
.has-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
    display: block; padding: 0.5rem 0.75rem; color: var(--text); border-radius: 6px; font-size: 0.875rem;
}
.dropdown-menu a:hover { background: var(--bg-alt); color: var(--primary); }
.btn-nav-cta { margin-left: 0.75rem; }

/* Breadcrumbs */
.breadcrumbs { background: var(--white); border-bottom: 1px solid var(--border); padding: 0.6rem 0; font-size: 0.8125rem; }
.breadcrumb-list { display: flex; flex-wrap: wrap; gap: 0.35rem; list-style: none; margin: 0; padding: 0; color: var(--text-muted); }
.breadcrumb-list li:not(:last-child)::after { content: '›'; margin-left: 0.35rem; }
.breadcrumb-list a { color: var(--text-muted); }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white); padding: 4rem 0;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.hero-title { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.15; margin: 0.5rem 0 1rem; }
.hero-text { font-size: 1.125rem; opacity: 0.92; margin-bottom: 1.5rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.hero-stats { display: flex; gap: 2rem; list-style: none; padding: 0; margin: 0; }
.hero-stats strong { display: block; font-size: 1.5rem; font-weight: 800; }
.hero-stats span { font-size: 0.8125rem; opacity: 0.85; }
.hero-card {
    background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius);
    padding: 2rem;
}
.hero-badge { display: inline-block; background: rgba(255,255,255,0.2); padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.8125rem; margin-bottom: 1rem; }
.hero-card h3 { margin: 0 0 0.5rem; font-size: 1.25rem; }

/* Sections */
.section { padding: 4rem 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 2.5rem; }
.section-header.align-left { text-align: left; }
.section-header-row { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 1rem; text-align: left; }
.section-header h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0.25rem 0; color: var(--dark); }
.section-intro { color: var(--text-muted); max-width: 640px; margin: 0.5rem auto 0; }
.section-header.align-left .section-intro { margin-left: 0; }
.section-cta { text-align: center; margin-top: 2rem; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; font-weight: 600; color: var(--primary); margin: 0; }

.page-header { padding-top: 3rem; padding-bottom: 2rem; }
.page-header h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0 0 0.75rem; color: var(--dark); }
.lead { font-size: 1.125rem; color: var(--text-muted); max-width: 720px; }

/* Cards grid */
.cards-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-image { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-alt); }
.card-image img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 1.25rem; }
.card-title { font-size: 1.0625rem; margin: 0 0 0.5rem; color: var(--dark); }
.card-text { color: var(--text-muted); font-size: 0.9375rem; margin: 0 0 0.75rem; }
.card-link { font-weight: 600; font-size: 0.875rem; }
.card-icon { font-size: 2rem; padding: 1.25rem 1.25rem 0; }
.card-specs { list-style: none; padding: 0; margin: 0 0 1rem; font-size: 0.8125rem; color: var(--text-muted); }
.card-specs li { padding: 0.15rem 0; }
.card-specs li::before { content: '• '; color: var(--primary); }
.card-price { margin-bottom: 1rem; }
.price-old { text-decoration: line-through; color: var(--text-muted); font-size: 0.875rem; margin-right: 0.5rem; }
.price-current { font-size: 1.375rem; font-weight: 800; color: var(--danger); }

/* Badges */
.badge {
    position: absolute; top: 0.75rem; left: 0.75rem; padding: 0.25rem 0.65rem;
    border-radius: 6px; font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
}
.badge-promo { background: var(--danger); color: var(--white); }
.badge-refurb { background: var(--secondary); color: var(--white); }
.badge-available { background: var(--primary); color: var(--white); }
.badge-limited { background: #7c3aed; color: var(--white); }
.badge-bestseller { background: var(--accent); color: var(--dark); }
.badge-default { background: var(--dark); color: var(--white); }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.feature-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1rem; background: var(--white); border-radius: 8px; border: 1px solid var(--border); }
.feature-check { color: var(--secondary); font-weight: 700; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.75rem; }
.gallery-item { position: relative; aspect-ratio: 4/3; overflow: hidden; border-radius: var(--radius); cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-overlay {
    position: absolute; inset: 0; background: linear-gradient(transparent 50%, rgba(0,0,0,0.7));
    display: flex; align-items: flex-end; padding: 1rem; opacity: 0; transition: opacity var(--transition);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-title { color: var(--white); font-size: 0.875rem; font-weight: 600; }
.gallery-filters { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.filter-btn {
    padding: 0.4rem 1rem; border: 1px solid var(--border); background: var(--white);
    border-radius: 20px; cursor: pointer; font-size: 0.875rem; transition: var(--transition);
}
.filter-btn.is-active, .filter-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* Lightbox */
.lightbox {
    position: fixed; inset: 0; z-index: 1000; background: rgba(0,0,0,0.92);
    display: flex; align-items: center; justify-content: center;
}
.lightbox[hidden] { display: none; }
.lightbox-figure { margin: 0; max-width: 90vw; max-height: 85vh; text-align: center; }
.lightbox-figure img { max-height: 80vh; margin: 0 auto; border-radius: 8px; }
.lightbox-figure figcaption { color: #ccc; margin-top: 0.75rem; }
.lightbox-close, .lightbox-prev, .lightbox-next {
    position: absolute; background: rgba(255,255,255,0.15); border: none; color: var(--white);
    font-size: 2rem; cursor: pointer; width: 48px; height: 48px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.lightbox-close { top: 1rem; right: 1rem; }
.lightbox-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1rem; top: 50%; transform: translateY(-50%); }

/* Testimonials */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.testimonial-card {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.5rem; margin: 0;
}
.testimonial-rating { color: var(--accent); margin-bottom: 0.75rem; }
.testimonial-card footer { margin-top: 1rem; font-size: 0.875rem; }
.testimonial-card footer strong { display: block; }
.testimonial-card footer span { color: var(--text-muted); }

/* Clients */
.clients-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1.25rem; }
.client-card {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.25rem; text-align: center;
}
.client-card img { margin: 0 auto 0.75rem; height: 48px; width: auto; object-fit: contain; }
.client-name { display: block; font-weight: 600; font-size: 0.875rem; }
.client-sector { display: block; font-size: 0.75rem; color: var(--text-muted); }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 0.75rem; }
.faq-item summary { padding: 1rem 1.25rem; cursor: pointer; font-weight: 600; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 1.25rem 1rem; margin: 0; color: var(--text-muted); }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: var(--white); padding: 3.5rem 0; }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; }
.cta-content h2 { margin: 0 0 0.5rem; font-size: 1.75rem; }
.cta-content p { margin: 0; opacity: 0.9; }
.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact-details { list-style: none; padding: 0; margin: 1.5rem 0; }
.contact-details li { padding: 0.35rem 0; }
.contact-form-wrap { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.form-row { margin-bottom: 1rem; }
.form-row label { display: block; font-weight: 500; font-size: 0.875rem; margin-bottom: 0.35rem; }
.form-row input, .form-row select, .form-row textarea {
    width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border);
    border-radius: 8px; font-family: inherit; font-size: 0.9375rem;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    outline: 2px solid var(--primary); outline-offset: 1px;
}
.form-check { display: flex; align-items: flex-start; gap: 0.5rem; }
.form-check input { width: auto; margin-top: 0.25rem; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; }
.alert { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.875rem; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }
.map-embed { margin-top: 3rem; border-radius: var(--radius); overflow: hidden; }
.map-embed iframe { width: 100%; height: 350px; border: 0; }

/* Pricing / Web */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
.pricing-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.pricing-featured { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary); }
.pricing-price { font-size: 1.5rem; font-weight: 800; color: var(--primary); margin: 0.5rem 0 1rem; }
.pricing-card ul { list-style: none; padding: 0; margin: 0 0 1.25rem; font-size: 0.875rem; }
.pricing-card li { padding: 0.3rem 0; }
.pricing-card li::before { content: '✓ '; color: var(--secondary); font-weight: 700; }
.web-features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.web-feature { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.web-feature h3 { margin: 0 0 0.5rem; color: var(--dark); }

/* Services detail */
.services-detail-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.service-detail-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.service-detail-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.service-icon { font-size: 1.5rem; }

/* Hardware categories */
.category-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.category-pill {
    padding: 0.4rem 1rem; background: var(--white); border: 1px solid var(--border);
    border-radius: 20px; font-size: 0.875rem; color: var(--text);
}
.category-pill:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
.cat-thumb { border-radius: 8px; }

/* Values / Legal / Article */
.values-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.25rem; margin-top: 2rem; }
.value-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.check-list { padding-left: 0; list-style: none; }
.check-list li { padding: 0.35rem 0; }
.check-list li::before { content: '✓ '; color: var(--secondary); font-weight: 700; }
.content-narrow { max-width: 760px; }
.legal-content h2 { margin-top: 2rem; font-size: 1.125rem; }
.article-header time { color: var(--text-muted); font-size: 0.875rem; }
.article-content h2 { margin-top: 2rem; color: var(--dark); }
.article-cta { margin-top: 2.5rem; padding: 1.5rem; background: var(--bg-alt); border-radius: var(--radius); text-align: center; }
.read-time { font-size: 0.8125rem; color: var(--text-muted); }

/* Social */
.social-links { display: flex; gap: 0.75rem; list-style: none; padding: 0; margin: 0; }
.social-links a { font-size: 0.8125rem; color: inherit; opacity: 0.85; }
.social-links a:hover { opacity: 1; }
.site-footer .social-links { margin-top: 1rem; }
.site-footer .social-links a { color: #94a3b8; }

/* Footer */
.site-footer { background: var(--dark); color: #94a3b8; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 2rem; padding: 3rem 0; }
.footer-col h3 { color: var(--white); font-size: 0.9375rem; margin: 0 0 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 0.25rem 0; }
.footer-col a { color: #94a3b8; font-size: 0.875rem; }
.footer-col a:hover { color: var(--white); }
.footer-contact li { font-size: 0.875rem; }
.footer-bottom { border-top: 1px solid #1e293b; padding: 1.25rem 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: 0.8125rem; }
.footer-bottom nav { display: flex; gap: 1.25rem; }
.footer-bottom a { color: #64748b; }

/* WhatsApp float */
.whatsapp-float {
    position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 99;
    width: 56px; height: 56px; background: #25d366; color: var(--white);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4); transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); color: var(--white); }

.text-muted { color: var(--text-muted); }