/* =========================================================
   PHOR S.R.L. — sito vetrina
   Design system: colori, tipografia, spaziature, componenti
   ========================================================= */

/* ===== RESET MINIMO ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; }

/* ===== VARIABILI (DESIGN TOKENS) ===== */
:root {
  /* Colori brand */
  --color-primary: #2F5496;
  --color-primary-dark: #1F3A5F;
  --color-primary-soft: #5B7396;
  --color-logo-navy: #2A4D8C;

  --color-bg: #FFFFFF;
  --color-bg-alt: #F4F6FA;
  --color-border: #E1E6EE;
  --color-text: #1D2733;
  --color-text-muted: #5B7396;
  --color-white: #FFFFFF;
  --color-focus: #2F5496;

  /* Tipografia */
  --font-body: Calibri, Candara, "Segoe UI", Optima, Arial, sans-serif;
  --fs-base: 1rem;
  --fs-sm: 0.875rem;
  --fs-lg: 1.125rem;
  --fs-h1: clamp(1.75rem, 1rem + 3vw, 2.75rem);
  --fs-h2: clamp(1.5rem, 1rem + 1.8vw, 2.125rem);
  --fs-h3: clamp(1.25rem, 1rem + 1vw, 1.5rem);
  --lh-body: 1.6;
  --lh-heading: 1.25;

  /* Spaziature (step da 8px) */
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  /* Layout */
  --container-max: 1140px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 1px 3px rgba(31,58,95,.08), 0 4px 12px rgba(31,58,95,.06);
  --header-height: 76px;
}

@media (max-width: 767px) {
  :root { --header-height: 60px; }
}

/* ===== BASE ===== */
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
}

h1, h2, h3, h4 {
  font-family: var(--font-body);
  line-height: var(--lh-heading);
  color: var(--color-primary-dark);
  margin: 0 0 var(--space-3);
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 var(--space-3); }

a { text-decoration: none; }
a.text-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
a.text-link:hover { color: var(--color-primary-dark); }

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media (min-width: 768px) {
  .container { padding: 0 2rem; }
}

section { padding: var(--space-7) 0; }
.section-alt { background: var(--color-bg-alt); }

.eyebrow {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.lead {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
}

/* ===== VISUALLY HIDDEN (accessibilità) ===== */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  padding: var(--space-4) 0 0;
}
.breadcrumb a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 2px; }
.breadcrumb .sep { margin: 0 .4em; color: var(--color-border); }

/* ===== BOTTONI ===== */
.btn {
  display: inline-block;
  padding: .75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: var(--fs-base);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }

.btn-on-dark {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}
.btn-on-dark:hover { background: var(--color-white); color: var(--color-primary-dark); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ===== BADGE ===== */
.badge {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 700;
  padding: .25rem .75rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border);
  margin: 0 var(--space-2) var(--space-2) 0;
}
.badge-pa { background: #EAF0FA; color: var(--color-primary-dark); }
.badge-pmi { background: #F4F6FA; color: var(--color-primary-soft); border-color: var(--color-primary-soft); }

/* ===== CARD ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: box-shadow .15s ease, transform .15s ease;
}
.card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--color-text-muted); margin-bottom: var(--space-3); }
.card .card-link { color: var(--color-primary); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 var(--color-primary-dark);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
.brand-logo img { height: 40px; width: auto; }
@media (max-width: 767px) {
  .brand-logo img { height: 30px; }
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: .5rem;
  color: var(--color-primary-dark);
}
.nav-toggle .bar {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.main-nav ul.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.main-nav a {
  font-weight: 600;
  color: var(--color-text);
  padding: .5rem 0;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--color-primary); }

/* Dropdown Servizi (desktop, CSS-only) */
.has-dropdown { position: relative; }
.dropdown-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 560px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
  gap: var(--space-5);
  grid-template-columns: 1fr 1fr;
}
.has-dropdown:hover .dropdown-panel,
.has-dropdown:focus-within .dropdown-panel {
  display: grid;
}
.dropdown-group h4 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.dropdown-group ul { display: flex; flex-direction: column; gap: var(--space-1); }
.dropdown-group a { font-weight: 500; padding: .3rem 0; display: block; }
.dropdown-group a:hover { color: var(--color-primary); }

@media (max-width: 767px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    bottom: 0;
    background: var(--color-white);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform .2s ease;
    padding: var(--space-4) 1.25rem;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul.nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav ul.nav-menu > li { border-bottom: 1px solid var(--color-border); }
  .main-nav a { display: block; padding: var(--space-3) 0; }

  .dropdown-panel {
    display: none;
    position: static;
    transform: none;
    min-width: 0;
    grid-template-columns: 1fr;
    border: none;
    box-shadow: none;
    padding: 0 0 var(--space-3);
  }
  .has-dropdown.is-open .dropdown-panel { display: grid; }
  .dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
  }
  .dropdown-toggle .chevron { transition: transform .2s ease; }
  .has-dropdown.is-open .dropdown-toggle .chevron { transform: rotate(180deg); }
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-logo-navy));
  color: var(--color-white);
  padding: var(--space-8) 0;
}
.hero .tagline { font-style: italic; font-size: var(--fs-lg); color: #C9D6EA; margin-bottom: var(--space-2); }
.hero .tagline-sub { font-size: var(--fs-sm); letter-spacing: .08em; text-transform: uppercase; color: #9FB4D6; margin-bottom: var(--space-4); }
.hero h1 { color: var(--color-white); max-width: 40ch; }
.hero p.lead { color: #D7E1F0; max-width: 55ch; }

/* ===== BANDA CTA ===== */
.cta-band {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--space-6) 0;
  text-align: center;
}
.cta-band h2 { color: var(--color-white); }
.cta-band p { color: #D7E1F0; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: #D7E1F0;
  padding: var(--space-7) 0 var(--space-4);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}
.footer-grid h4 { color: var(--color-white); font-size: var(--fs-base); margin-bottom: var(--space-3); }
.footer-grid ul li { margin-bottom: var(--space-2); }
.footer-grid a { color: #C9D6EA; }
.footer-grid a:hover { color: var(--color-white); text-decoration: underline; }
.footer-logo img { height: 32px; width: auto; margin-bottom: var(--space-3); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.15);
  padding-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  font-size: var(--fs-sm);
  color: #9FB4D6;
}
.footer-bottom a { color: #9FB4D6; text-decoration: underline; }
.footer-bottom a:hover { color: var(--color-white); }

/* ===== SEGMENTI / BLOCCHI PA-PMI ===== */
.segment-block { margin-bottom: var(--space-7); }
.segment-block:last-child { margin-bottom: 0; }
.segment-block h2 { display: flex; align-items: center; gap: var(--space-2); }

/* ===== LISTE PUNTATE CONTENUTO ===== */
.content-list { margin: 0 0 var(--space-4); }
.content-list li {
  position: relative;
  padding-left: 1.4em;
  margin-bottom: var(--space-2);
}
.content-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}
.content-sublist { margin: var(--space-2) 0 var(--space-3) 1.4em; }
.content-sublist li::before { background: var(--color-primary-soft); }

/* ===== BOX NOTA / AVVISO ===== */
.notice-box {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin: var(--space-4) 0;
}

/* ===== PAGINA CONTATTI ===== */
.contact-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.contact-card dt { font-weight: 700; color: var(--color-primary-dark); margin-top: var(--space-3); }
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 0 0 var(--space-1); }

/* ===== UTILITY ===== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }