/* ===========================================================
   ProntoTecnici - Design System
   CSS unico, mobile-first, senza dipendenze esterne.
   =========================================================== */

:root {
  --primario: #0b5cff;
  --primario-scuro: #0842b8;
  --accento: #ff7a00;
  --scuro: #0f172a;
  --grigio-900: #1e293b;
  --grigio-700: #334155;
  --grigio-500: #64748b;
  --grigio-300: #cbd5e1;
  --grigio-100: #f1f5f9;
  --grigio-50: #f8fafc;
  --bianco: #ffffff;
  --successo: #16a34a;
  --errore: #dc2626;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --maxw: 1160px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--grigio-900);
  background: var(--bianco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primario); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
h1, h2, h3 { line-height: 1.2; color: var(--scuro); }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 .5rem; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 2.2rem 0 1rem; }
h3 { font-size: 1.15rem; margin: 1.2rem 0 .5rem; }
p { margin: 0 0 1rem; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 820px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--grigio-100);
}
.site-header .bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 66px; gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 800; font-size: 1.25rem; color: var(--scuro); }
.brand:hover { text-decoration: none; }
.brand .logo { color: var(--primario); }
.nav { display: flex; align-items: center; gap: 1.3rem; }
.nav a { color: var(--grigio-700); font-weight: 600; font-size: .95rem; }
.nav a:hover { color: var(--primario); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.6rem; cursor: pointer; color: var(--scuro); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  padding: .7rem 1.3rem; border-radius: var(--radius-sm);
  font-weight: 700; font-size: .95rem; cursor: pointer;
  border: 2px solid transparent; transition: .15s; text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--primario); color: #fff; }
.btn-primary:hover { background: var(--primario-scuro); color: #fff; }
.btn-accent { background: var(--accento); color: #fff; }
.btn-accent:hover { background: #e56d00; color: #fff; }
.btn-ghost { background: #fff; color: var(--primario); border-color: var(--grigio-300); }
.btn-ghost:hover { border-color: var(--primario); }
.btn-block { width: 100%; }
.btn-lg { padding: .95rem 1.8rem; font-size: 1.05rem; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--primario) 0%, var(--primario-scuro) 100%);
  color: #fff; padding: 3.5rem 0 3rem;
}
.hero h1 { color: #fff; }
.hero p.lead { font-size: 1.15rem; opacity: .95; max-width: 640px; }
.hero .actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.4rem; }
.hero-search {
  margin-top: 1.8rem; background: #fff; border-radius: var(--radius);
  padding: .5rem; display: flex; gap: .5rem; max-width: 620px; box-shadow: var(--shadow-lg);
}
.hero-search input {
  flex: 1; border: 0; padding: .8rem 1rem; font-size: 1rem; border-radius: var(--radius-sm);
  color: var(--scuro); outline: none;
}

/* ---------- Chips / tags ---------- */
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.chip {
  background: var(--grigio-100); color: var(--grigio-700);
  padding: .35rem .8rem; border-radius: 999px; font-size: .85rem; font-weight: 600;
}
.chip:hover { background: var(--primario); color: #fff; text-decoration: none; }

/* ---------- Segments (3 pubblici) ---------- */
.segments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin: 2rem 0; }
.segment {
  border: 1px solid var(--grigio-100); border-radius: var(--radius); padding: 1.6rem;
  background: var(--grigio-50); transition: .15s;
}
.segment:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.segment .ico { font-size: 2rem; }
.segment h3 { margin-top: .6rem; }

/* ---------- Grid cards ---------- */
.grid { display: grid; gap: 1.2rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--grigio-100); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: .15s; display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.card .thumb {
  aspect-ratio: 16/9; background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
  display: flex; align-items: center; justify-content: center; font-size: 2.4rem; color: var(--grigio-500);
  position: relative;
}
.card .thumb .play {
  position: absolute; width: 54px; height: 54px; border-radius: 50%; background: rgba(255,255,255,.9);
  display: flex; align-items: center; justify-content: center; color: var(--primario); font-size: 1.3rem;
}
.card .body { padding: 1rem 1.1rem 1.2rem; flex: 1; display: flex; flex-direction: column; }
.card .body h3 { margin: 0 0 .3rem; font-size: 1.05rem; }
.card .meta { font-size: .85rem; color: var(--grigio-500); margin-bottom: .6rem; }
.card .tags { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: auto; }
.card .tags span { background: var(--grigio-100); color: var(--grigio-700); font-size: .72rem; padding: .2rem .5rem; border-radius: 6px; }
.badge { display: inline-block; background: #dcfce7; color: var(--successo); font-size: .72rem; font-weight: 700; padding: .15rem .5rem; border-radius: 6px; }
.badge-accent { background: #fff1e0; color: var(--accento); }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: .85rem; color: var(--grigio-500); padding: 1rem 0 0; }
.breadcrumb a { color: var(--grigio-500); }
.breadcrumb span { margin: 0 .35rem; }

/* ---------- Sections ---------- */
.section { padding: 2.5rem 0; }
.section-alt { background: var(--grigio-50); }
.lead-block { font-size: 1.1rem; color: var(--grigio-700); }

/* ---------- Zone list (SEO capillare) ---------- */
.zone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: .5rem; }
.zone-grid a {
  display: block; padding: .55rem .8rem; background: var(--grigio-50);
  border: 1px solid var(--grigio-100); border-radius: var(--radius-sm);
  font-size: .9rem; color: var(--grigio-700); font-weight: 600;
}
.zone-grid a:hover { border-color: var(--primario); color: var(--primario); text-decoration: none; }

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--grigio-100); border-radius: var(--radius-sm);
  padding: .9rem 1.1rem; margin-bottom: .7rem; background: #fff;
}
.faq summary { font-weight: 700; cursor: pointer; color: var(--scuro); }
.faq p { margin: .7rem 0 0; color: var(--grigio-700); }

/* ---------- Forms ---------- */
.form-card {
  background: #fff; border: 1px solid var(--grigio-100); border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow); max-width: 520px; margin: 1.5rem auto;
}
.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; margin-bottom: .35rem; font-size: .92rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: .7rem .85rem; border: 1px solid var(--grigio-300);
  border-radius: var(--radius-sm); font-size: 1rem; font-family: inherit; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primario); }
.field textarea { min-height: 120px; resize: vertical; }
.help { font-size: .8rem; color: var(--grigio-500); }
.roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.role-opt { border: 2px solid var(--grigio-300); border-radius: var(--radius-sm); padding: .8rem; text-align: center; cursor: pointer; font-weight: 600; font-size: .85rem; }
.role-opt input { display: none; }
.role-opt.active, .role-opt:has(input:checked) { border-color: var(--primario); background: #eff5ff; color: var(--primario); }

.alert { padding: .9rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1rem; font-size: .92rem; }
.alert-error { background: #fee2e2; color: var(--errore); }
.alert-success { background: #dcfce7; color: var(--successo); }
.alert-info { background: #dbeafe; color: var(--primario-scuro); }

/* ---------- Dashboard ---------- */
.dash { display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; padding: 2rem 0; min-height: 60vh; }
.dash-side { border-right: 1px solid var(--grigio-100); }
.dash-side a { display: block; padding: .6rem .8rem; border-radius: var(--radius-sm); color: var(--grigio-700); font-weight: 600; }
.dash-side a.active, .dash-side a:hover { background: var(--grigio-100); color: var(--primario); text-decoration: none; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat { background: #fff; border: 1px solid var(--grigio-100); border-radius: var(--radius); padding: 1.1rem; box-shadow: var(--shadow); }
.stat .n { font-size: 1.8rem; font-weight: 800; color: var(--primario); }
.stat .l { font-size: .85rem; color: var(--grigio-500); }
.table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.table th, .table td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--grigio-100); font-size: .92rem; }
.table th { background: var(--grigio-50); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--grigio-500); }

/* ---------- Footer ---------- */
.site-footer { background: var(--scuro); color: #cbd5e1; padding: 3rem 0 1.5rem; margin-top: 3rem; }
.site-footer h4 { color: #fff; font-size: .95rem; margin: 0 0 .8rem; }
.site-footer a { color: #94a3b8; font-size: .9rem; display: block; margin-bottom: .35rem; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 1.5rem; }
.footer-bottom { border-top: 1px solid #1e293b; margin-top: 2rem; padding-top: 1.2rem; font-size: .82rem; color: #64748b; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; }

/* ---------- Utilities ---------- */
.muted { color: var(--grigio-500); }
.center { text-align: center; }
.mt { margin-top: 1.5rem; }
.mb { margin-bottom: 1.5rem; }
.pill-row { display:flex; gap:.5rem; flex-wrap:wrap; }
.video-embed { aspect-ratio: 16/9; width: 100%; background:#000; border-radius: var(--radius); border:0; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .segments, .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dash { grid-template-columns: 1fr; }
  .dash-side { border-right: 0; border-bottom: 1px solid var(--grigio-100); padding-bottom: 1rem; display: flex; flex-wrap: wrap; gap: .3rem; }
}
@media (max-width: 640px) {
  .nav { position: fixed; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column;
    align-items: stretch; padding: 1rem 20px; gap: .3rem; box-shadow: var(--shadow-lg); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: .6rem 0; border-bottom: 1px solid var(--grigio-100); }
  .nav-toggle { display: block; }
  .segments, .grid-3, .grid-4, .roles { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}