/* ============================================
   GESTEL S.R.L. — Foglio di stile principale
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blu:       #1A3A6B;
  --blu-scuro: #0F2347;
  --blu-light: #2A5298;
  --arancio:   #F5822A;
  --arancio-h: #E06B15;
  --bianco:    #FFFFFF;
  --grigio-bg: #F4F6F9;
  --grigio-bd: #E2E8F0;
  --testo:     #2C2C2C;
  --testo-sec: #6B7280;
  --verde:     #3AAA35;
  --radius:    8px;
  --shadow:    0 4px 20px rgba(26,58,107,.10);
  --shadow-sm: 0 2px 8px  rgba(26,58,107,.08);
  --trans:     .25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--testo);
  background: var(--bianco);
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- Tipografia --- */
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
p  { line-height: 1.75; color: var(--testo-sec); }

.section-title { color: var(--blu); margin-bottom: .6rem; }
.section-sub   { font-size: 1.1rem; color: var(--testo-sec); max-width: 640px; }
.text-center   { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* --- Layout --- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 80px 0; }
.section-sm{ padding: 48px 0; }
.bg-gray   { background: var(--grigio-bg); }
.bg-blue   { background: var(--blu); }
.bg-dark   { background: var(--blu-scuro); }

/* --- Pulsanti --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--radius);
  font-weight: 600; font-size: .95rem; cursor: pointer;
  border: 2px solid transparent; transition: all var(--trans);
  text-decoration: none;
}
.btn-primary {
  background: var(--arancio); color: var(--bianco);
  border-color: var(--arancio);
}
.btn-primary:hover { background: var(--arancio-h); border-color: var(--arancio-h); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,130,42,.35); }
.btn-outline {
  background: transparent; color: var(--bianco);
  border-color: rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: var(--bianco); }
.btn-outline-blue {
  background: transparent; color: var(--blu);
  border-color: var(--blu);
}
.btn-outline-blue:hover { background: var(--blu); color: var(--bianco); }

/* ============================================
   HEADER / NAV
   ============================================ */
#header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--bianco);
  box-shadow: 0 2px 16px rgba(26,58,107,.10);
  transition: box-shadow var(--trans);
}
.nav-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo img { height: 48px; width: auto; }
.nav-logo span {
  font-size: 1.5rem; font-weight: 800;
  color: var(--blu); letter-spacing: -.5px;
}
.nav-logo sup {
  font-size: .6rem; color: var(--verde);
  vertical-align: super;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  padding: 8px 14px; border-radius: 6px;
  font-weight: 500; font-size: .9rem; color: var(--testo);
  transition: all var(--trans);
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--blu); background: var(--grigio-bg);
}
.nav-menu a.nav-cta {
  background: var(--arancio); color: var(--bianco);
  padding: 9px 18px; margin-left: 8px;
}
.nav-menu a.nav-cta:hover { background: var(--arancio-h); }

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; border: none; background: none;
}
.nav-toggle span {
  display: block; width: 26px; height: 2px;
  background: var(--blu); border-radius: 2px;
  transition: all var(--trans);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--blu-scuro) 0%, var(--blu) 60%, var(--blu-light) 100%);
  padding: 100px 0 90px;
  color: var(--bianco);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 60px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245,130,42,.2); border: 1px solid rgba(245,130,42,.4);
  color: #FFB87A; padding: 6px 14px; border-radius: 50px;
  font-size: .8rem; font-weight: 600; letter-spacing: .5px;
  text-transform: uppercase; margin-bottom: 20px;
}
.hero h1 { color: var(--bianco); margin-bottom: 20px; }
.hero h1 span { color: var(--arancio); }
.hero p { color: rgba(255,255,255,.8); font-size: 1.1rem; margin-bottom: 32px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual {
  display: flex; justify-content: center; align-items: center;
}
.hero-cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px; width: 100%;
}
.hero-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 12px; padding: 20px;
  text-align: center; transition: all var(--trans);
}
.hero-card:hover { background: rgba(255,255,255,.14); transform: translateY(-4px); }
.hero-card .icon { font-size: 2rem; margin-bottom: 10px; }
.hero-card h4 { color: var(--bianco); font-size: .95rem; }
.hero-card p { color: rgba(255,255,255,.6); font-size: .8rem; margin-top: 4px; }

/* Hero pagine interne */
.hero-inner-page {
  background: linear-gradient(135deg, var(--blu-scuro) 0%, var(--blu) 100%);
  padding: 70px 0 60px; color: var(--bianco); text-align: center;
}
.hero-inner-page h1 { color: var(--bianco); margin-bottom: 12px; }
.hero-inner-page p  { color: rgba(255,255,255,.75); font-size: 1.1rem; margin: 0 auto; max-width: 600px; }
.breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 16px; font-size: .85rem;
  color: rgba(255,255,255,.5);
}
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: var(--bianco); }
.breadcrumb span { color: var(--arancio); }

/* ============================================
   CARDS
   ============================================ */
.cards-grid { display: grid; gap: 28px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bianco); border-radius: 14px;
  box-shadow: var(--shadow-sm); overflow: hidden;
  transition: all var(--trans);
  border: 1px solid var(--grigio-bd);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.card-top { height: 5px; background: var(--arancio); }
.card-top.blu { background: var(--blu); }
.card-top.verde { background: var(--verde); }
.card-body { padding: 28px; }
.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--grigio-bg); display: flex; align-items: center;
  justify-content: center; font-size: 1.5rem; margin-bottom: 16px;
}
.card h3 { color: var(--blu); margin-bottom: 10px; }
.card p  { font-size: .93rem; }
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--arancio); font-weight: 600; font-size: .9rem;
  margin-top: 16px; transition: gap var(--trans);
}
.card-link:hover { gap: 10px; }

/* Service card (homepage) */
.service-card {
  display: block; position: relative; overflow: hidden;
  border-radius: 16px; height: 320px;
  background: var(--blu);
}
.service-card-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: .35; transition: opacity var(--trans), transform var(--trans);
}
.service-card:hover .service-card-bg { opacity: .5; transform: scale(1.05); }
.service-card-content {
  position: relative; z-index: 1;
  height: 100%; display: flex; flex-direction: column;
  justify-content: flex-end; padding: 28px;
}
.service-card .tag {
  display: inline-block; background: var(--arancio);
  color: var(--bianco); font-size: .75rem; font-weight: 700;
  padding: 4px 10px; border-radius: 4px;
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: 10px;
}
.service-card h3 { color: var(--bianco); font-size: 1.4rem; margin-bottom: 6px; }
.service-card p  { color: rgba(255,255,255,.75); font-size: .9rem; }
.service-card .arrow {
  margin-top: 14px; width: 38px; height: 38px;
  background: var(--arancio); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--bianco); font-size: 1.1rem;
  transition: transform var(--trans);
}
.service-card:hover .arrow { transform: translateX(4px); }

/* ============================================
   STEPS / PROCESSO
   ============================================ */
.steps { display: flex; gap: 0; position: relative; }
.steps::before {
  content: ''; position: absolute; top: 28px; left: 0; right: 0; height: 2px;
  background: var(--grigio-bd); z-index: 0;
}
.step { flex: 1; text-align: center; position: relative; z-index: 1; padding: 0 16px; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--blu); color: var(--bianco);
  font-weight: 800; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; border: 4px solid var(--bianco);
  box-shadow: var(--shadow-sm);
}
.step h4 { color: var(--blu); margin-bottom: 8px; }
.step p  { font-size: .88rem; }

/* ============================================
   STATS
   ============================================ */
.stats-bar { background: var(--blu); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-num { font-size: 2.4rem; font-weight: 800; color: var(--arancio); line-height: 1; }
.stat-lbl { font-size: .9rem; color: rgba(255,255,255,.75); margin-top: 6px; }

/* ============================================
   FEATURE LIST
   ============================================ */
.feature-list { display: flex; flex-direction: column; gap: 14px; }
.feature-item {
  display: flex; align-items: flex-start; gap: 14px;
  background: var(--bianco); border-radius: 10px;
  padding: 16px 20px; box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--arancio);
}
.feature-item .fi-icon {
  font-size: 1.4rem; flex-shrink: 0; margin-top: 2px;
}
.feature-item h4 { color: var(--blu); margin-bottom: 4px; }
.feature-item p  { font-size: .88rem; }

/* ============================================
   PRODOTTO / HIGHLIGHT
   ============================================ */
.product-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}
.product-split.reverse { direction: rtl; }
.product-split.reverse > * { direction: ltr; }
.product-visual {
  background: linear-gradient(135deg, var(--blu) 0%, var(--blu-light) 100%);
  border-radius: 20px; padding: 48px;
  display: flex; align-items: center; justify-content: center;
  min-height: 300px; font-size: 6rem; text-align: center;
}
.product-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(245,130,42,.1); color: var(--arancio);
  border: 1px solid rgba(245,130,42,.3);
  padding: 5px 12px; border-radius: 50px;
  font-size: .8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: 14px;
}
.kpi-row { display: flex; gap: 24px; margin: 24px 0; flex-wrap: wrap; }
.kpi {
  flex: 1; min-width: 100px; text-align: center;
  background: var(--grigio-bg); border-radius: 10px; padding: 14px;
}
.kpi-val { font-size: 1.6rem; font-weight: 800; color: var(--blu); }
.kpi-lbl { font-size: .75rem; color: var(--testo-sec); margin-top: 2px; }
.checklist { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.checklist li {
  display: flex; align-items: center; gap: 10px;
  font-size: .93rem; color: var(--testo);
}
.checklist li::before {
  content: '✓'; width: 22px; height: 22px;
  background: var(--verde); color: var(--bianco);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: .75rem; font-weight: 700;
  flex-shrink: 0;
}

/* ============================================
   NEWS
   ============================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: var(--bianco); border-radius: 14px;
  border: 1px solid var(--grigio-bd); overflow: hidden;
  transition: all var(--trans);
}
.news-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.news-card-img {
  height: 180px; background: var(--grigio-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; overflow: hidden;
}
.news-card-img img { width: 100%; height: 100%; object-fit: cover; }
.news-card-body { padding: 20px; }
.news-meta {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 10px; flex-wrap: wrap;
}
.news-cat {
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  font-size: .75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .4px;
}
.cat-ripetitori { background: rgba(26,58,107,.1);  color: var(--blu); }
.cat-fotovoltaico{ background: rgba(58,170,53,.1); color: var(--verde); }
.cat-batterie   { background: rgba(245,130,42,.1); color: var(--arancio); }
.cat-azienda    { background: var(--grigio-bg);   color: var(--testo-sec); }
.news-date { font-size: .78rem; color: var(--testo-sec); }
.news-card h3 { font-size: 1rem; color: var(--blu); margin-bottom: 8px; }
.news-card p  { font-size: .85rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .card-link { margin-top: 12px; font-size: .85rem; }

/* ============================================
   CONTATTI
   ============================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--bianco); border-radius: 12px;
  padding: 20px; box-shadow: var(--shadow-sm);
  border: 1px solid var(--grigio-bd);
}
.contact-item .ci-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--blu); color: var(--bianco);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.contact-item h4 { color: var(--blu); margin-bottom: 4px; font-size: .95rem; }
.contact-item p  { font-size: .88rem; }
.contact-item a  { color: var(--arancio); }

/* Form */
.form-card {
  background: var(--bianco); border-radius: 16px;
  box-shadow: var(--shadow); padding: 36px;
  border: 1px solid var(--grigio-bd);
}
.form-card h3 { color: var(--blu); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label {
  display: block; font-size: .85rem; font-weight: 600;
  color: var(--testo); margin-bottom: 6px;
}
input, textarea, select {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--grigio-bd); border-radius: var(--radius);
  font-family: inherit; font-size: .93rem; color: var(--testo);
  background: var(--bianco); transition: border-color var(--trans);
  outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--blu); }
textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: .78rem; color: var(--testo-sec); margin-top: 10px; }
.form-success {
  display: none; background: rgba(58,170,53,.1);
  border: 1px solid rgba(58,170,53,.3); border-radius: var(--radius);
  padding: 14px 18px; color: var(--verde); font-weight: 600;
  margin-top: 14px;
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--blu) 0%, var(--blu-light) 100%);
  padding: 64px 0; text-align: center; color: var(--bianco);
}
.cta-banner h2 { color: var(--bianco); margin-bottom: 12px; }
.cta-banner p  { color: rgba(255,255,255,.75); max-width: 560px; margin: 0 auto 28px; }
.cta-btns { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ============================================
   FOOTER
   ============================================ */
#footer {
  background: var(--blu-scuro); color: rgba(255,255,255,.8);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand p { font-size: .88rem; margin-top: 14px; max-width: 280px; color: rgba(255,255,255,.55); }
.footer-col h4  { color: var(--bianco); font-size: .9rem; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: .86rem; color: rgba(255,255,255,.55);
  transition: color var(--trans);
}
.footer-col ul li a:hover { color: var(--arancio); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px; display: flex;
  justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: .82rem; color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: var(--bianco); }

/* Logo testo nel footer */
.logo-text {
  font-size: 1.6rem; font-weight: 800; color: var(--bianco);
  letter-spacing: -.5px;
}
.logo-text sup { font-size: .55rem; color: var(--verde); vertical-align: super; }

/* ============================================
   ADMIN / NEWS
   ============================================ */
.admin-bar {
  background: var(--blu-scuro); color: var(--bianco);
  padding: 10px 0; text-align: center; font-size: .85rem;
}
.admin-bar a { color: var(--arancio); }
.tag-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px; font-size: .75rem;
  font-weight: 600;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero { padding: 72px 0 64px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .steps { flex-direction: column; }
  .steps::before { display: none; }
  .product-split { grid-template-columns: 1fr; gap: 32px; }
  .product-split.reverse { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .cards-3, .cards-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .nav-menu { display: none; flex-direction: column; gap: 0;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--bianco); box-shadow: 0 8px 24px rgba(0,0,0,.12);
    padding: 12px 0;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 24px; border-radius: 0; width: 100%; }
  .nav-menu a.nav-cta { margin: 8px 16px; width: calc(100% - 32px); justify-content: center; }
  .nav-toggle { display: flex; }
  #header { position: relative; }
  .kpi-row { gap: 12px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-btns { flex-direction: column; align-items: center; }
}