/* =============================================
   TRENDY Media Lab – Custom Styles
   Palette: #5E2CA5 | #F4C542 | #111111 | #F2F2F2
   ============================================= */

:root {
  --violet: #5E2CA5;
  --yellow: #F4C542;
  --dark:   #111111;
  --light:  #F2F2F2;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--violet); color: #fff; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: var(--violet); border-radius: 3px; }

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.07);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }

.nav-link {
  position: relative;
  font-size: 1rem;
  font-weight: 500;
  color: #4b5563;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--violet);
  transition: width 0.3s;
}
.nav-link:hover { color: var(--violet); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--violet); }

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--yellow);
  color: var(--dark);
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244,197,66,0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--violet);
  color: #fff;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(94,44,165,0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: transparent;
  color: #fff;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.75rem;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.4);
  transition: border-color 0.2s, background 0.2s;
}
.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ---- Hero gradient ---- */
.hero-gradient {
  position: relative;
  overflow: hidden;
}
.hero-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(94, 44, 165, 0.78), rgba(40, 15, 86, 0.88)),
    url('../assets/foto hero.png') center/cover no-repeat;
  filter: blur(3px);
  transform: scale(1.05); /* evita aloni bianchi ai bordi */
  z-index: 0;
}
.hero-gradient > * {
  position: relative;
  z-index: 1;
}

/* ---- Page header (internal pages) ---- */
.page-header {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, #5E2CA5 0%, #3a1878 100%);
}

/* ---- Cards ---- */
.card {
  background: #fff;
  border-radius: 1rem;
  border: 1.5px solid #e5e7eb;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.card:hover {
  border-color: var(--violet);
  box-shadow: 0 8px 32px rgba(94,44,165,0.12);
  transform: translateY(-4px);
}

/* ---- Icon box ---- */
.icon-box {
  width: 2.75rem; height: 2.75rem;
  border-radius: 0.625rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* ---- Number badge (metodo) ---- */
.step-number {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(94,44,165,0.12);
  font-variant-numeric: tabular-nums;
}

/* ---- Section tag ---- */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--violet);
  margin-bottom: 0.75rem;
}

/* ---- Divider ---- */
.divider {
  width: 3rem; height: 3px;
  background: var(--yellow);
  border-radius: 2px;
  margin: 1rem 0 1.5rem;
}

/* ---- Form ---- */
.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 0.625rem;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--dark);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-input:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(94,44,165,0.1);
}
.form-input::placeholder { color: #9ca3af; }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5rem;
}

/* ---- Footer ---- */
.footer {
  background: var(--dark);
}

/* ---- Fade-in animation ---- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Social icon (footer) ---- */
.social-icon {
  width: 2.125rem; height: 2.125rem;
  border-radius: 0.5rem;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.55);
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
  flex-shrink: 0;
}
.social-icon:hover {
  background: rgba(255,255,255,0.22);
  color: #fff;
}

/* ---- Mobile menu ---- */
#mobileMenu {
  display: none;
  border-top: 1px solid #f3f4f6;
  background: #fff;
}
#mobileMenu.open { display: block; }

/* ---- Responsive helpers ---- */
@media (max-width: 767px) {
  .hero-h1 { font-size: 2.5rem !important; }
  .page-header { padding: 7rem 0 3.5rem; }
}

/* ---- Tablet (< 1024px): gap griglie a 2 colonne ---- */
@media (max-width: 1023px) {
  .gap-16 { gap: 2.5rem !important; }
}

/* ---- Mobile (< 640px): ottimizzazioni generali ---- */
@media (max-width: 639px) {
  /* Padding sezioni ridotto */
  section[class*="py-24"] { padding-top: 3.5rem !important; padding-bottom: 3.5rem !important; }
  section[class*="py-28"] { padding-top: 4rem !important; padding-bottom: 4rem !important; }
  section[class*="py-20"] { padding-top: 3rem !important; padding-bottom: 3rem !important; }
  section[class*="py-16"] { padding-top: 2.5rem !important; padding-bottom: 2.5rem !important; }
  /* Gap griglia footer / sezioni */
  .gap-12 { gap: 2rem !important; }
  /* Logo navbar: altezza ridotta su schermi piccoli */
  .navbar-logo { height: 2rem !important; }
  /* Testo hero intro */
  .hero-gradient .text-lg { font-size: 1rem !important; }
  /* Fasi metodo: padding ridotto nelle card */
  .space-y-6 > .fade-in[class*="p-8"] { padding: 1.25rem !important; }

  /* ---- Font size mobile ---- */
  .text-6xl { font-size: 2.25rem !important; }
  .text-5xl { font-size: 2rem !important; }
  .text-4xl { font-size: 1.75rem !important; }
  .text-3xl { font-size: 1.375rem !important; }
  .text-2xl { font-size: 1.2rem !important; }
  .text-xl  { font-size: 1.05rem !important; }
  .text-lg  { font-size: 0.95rem !important; }
}


/* ==============================================
   DARK MODE
   Classe .dark su <html>
   ============================================== */

/* ---- Transizione globale ---- */
body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ---- Toggle button ---- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4b5563;
  transition: color 0.2s, background 0.2s;
  border: none;
  background: transparent;
  cursor: pointer;
}
.theme-toggle:hover { background: #f3f4f6; }
html.dark .theme-toggle { color: #c4b5fd; }
html.dark .theme-toggle:hover { background: rgba(255,255,255,0.1); }

/* ---- Body & sfondo base ---- */
html.dark body {
  background-color: #0D0919;
  color: #F0EAF8;
}

/* ---- Navbar ---- */
html.dark .navbar {
  background: rgba(13,9,25,0.97);
  border-bottom-color: rgba(255,255,255,0.08);
}
html.dark .nav-link { color: #c4b5fd; }
html.dark .nav-link:hover,
html.dark .nav-link.active { color: #F0EAF8; }
html.dark .nav-link::after { background: #c4b5fd; }

/* ---- Mobile menu ---- */
html.dark #mobileMenu {
  background: #0D0919;
  border-top-color: rgba(255,255,255,0.08);
}
html.dark #mobileMenu a.text-sm { color: #c4b5fd !important; }
html.dark #mobileMenu a:hover { color: #F0EAF8; }

/* ---- Hamburger icon ---- */
html.dark #menuBtn svg { color: #c4b5fd; }

/* ---- Sezioni bianche (bg-white) ---- */
html.dark .bg-white { background-color: #0D0919 !important; }
html.dark section.bg-white { background-color: #0D0919 !important; }

/* ---- bg-gray-50 (box privacy policy, diritti) ---- */
html.dark .bg-gray-50 { background-color: #1C1236 !important; }

/* ---- Sezioni grigio chiaro (background:#F2F2F2 inline) ---- */
html.dark [style*="background:#F2F2F2"] { background-color: #160D2B !important; }

/* ---- Card ---- */
html.dark .card {
  background: #1C1236 !important;
  border-color: #2D1F4E !important;
  color: #F0EAF8;
}
html.dark .card:hover {
  border-color: var(--violet) !important;
  box-shadow: 0 8px 32px rgba(94,44,165,0.25);
}

/* ---- Card bianche nelle sezioni ---- */
html.dark .bg-white.p-6,
html.dark .bg-white.p-8,
html.dark .bg-white.p-10 { background-color: #1C1236 !important; }

/* ---- Testo grigio Tailwind ---- */
html.dark .text-gray-900 { color: #F0EAF8 !important; }
html.dark .text-gray-800 { color: #EDE9F8 !important; }
html.dark .text-gray-700 { color: #D8D0F0 !important; }
html.dark .text-gray-600 { color: #9B8AC4 !important; }
html.dark .text-gray-500 { color: #7B6AA8 !important; }
html.dark .text-gray-400 { color: #6A5A9A !important; }

/* ---- Bordi ---- */
html.dark .border-gray-100 { border-color: #2D1F4E !important; }
html.dark .border-gray-200 { border-color: #3D2A6E !important; }
html.dark [class*="border-2"][class*="border-gray"] { border-color: #2D1F4E !important; }

/* ---- Form inputs ---- */
html.dark .form-input {
  background: #1C1236;
  border-color: #3D2A6E;
  color: #F0EAF8;
}
html.dark .form-input:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(94,44,165,0.2);
}
html.dark .form-input::placeholder { color: #5a4a82; }
html.dark .form-label { color: #c4b5fd; }
html.dark select.form-input option { background: #1C1236; color: #F0EAF8; }

/* ---- Form container (bg-white card contatti) ---- */
html.dark .bg-white.rounded-2xl { background-color: #1C1236 !important; }

/* ---- Privacy checkbox label ---- */
html.dark .text-gray-500.leading-relaxed { color: #7B6AA8 !important; }

/* ---- Shadow ---- */
html.dark .shadow-sm { box-shadow: 0 1px 3px rgba(0,0,0,0.4) !important; }

/* ---- Section tag ---- */
html.dark .section-tag { color: #a78bfa; }

/* ---- Divider ---- */
html.dark .divider { background: var(--yellow); }

/* ---- Step number (metodo) ---- */
html.dark .step-number { color: rgba(196,181,253,0.12); }
/* Numeri watermark 01/02/03 nei principi fondamentali (metodo.html) */
html.dark [style*="color:rgba(94,44,165,0.08)"] { color: rgba(196,181,253,0.30) !important; }

/* ---- Quote/highlight box (chi-siamo: bg-F2F2F2 + border-violet) ---- */
html.dark [style*="background:#F2F2F2"][style*="border-color"] {
  background: #1C1236 !important;
}
/* Testo interno al quote box */
html.dark [style*="background:#F2F2F2"][style*="border-color"] p {
  color: #F0EAF8 !important;
}

/* ---- Card "perché scegliere" (bianche con icon-box viola) ---- */
html.dark .bg-white.p-6.rounded-2xl { background-color: #1C1236 !important; }
html.dark .bg-white.p-8.rounded-2xl { background-color: #1C1236 !important; }

/* ---- Cards punti distintivi (chi-siamo: border-2 border-gray-100) ---- */
html.dark .border-2.border-gray-100 { border-color: #2D1F4E !important; }
html.dark .border-2.border-gray-100:hover { border-color: var(--violet) !important; }

/* ---- Metodo: fasi border-2 border-gray-100 ---- */
html.dark .border-2[class*="border-gray"] { border-color: #2D1F4E !important; }
html.dark .border-2[class*="border-gray"]:hover { border-color: var(--violet) !important; }
html.dark .border-2[class*="border-gray"] h3 { color: #F0EAF8 !important; }

/* ---- Metodo: mini card bianche (4 fasi, bg-white shadow-sm) ---- */
html.dark .rounded-2xl.bg-white.shadow-sm { background-color: #1C1236 !important; }

/* ---- Numeri hero (index: visual cards) ---- */
html.dark .col-span-2.p-8 { /* viola, lasciare invariato */ }
html.dark [style*="background:#F4C542"] { /* giallo, lasciare invariato */ }
/* Testo dentro badge gialli: rimane scuro per contrasto leggibile */
html.dark [style*="background:#F4C542"] .text-gray-900 { color: #111111 !important; }
html.dark .bg-white.border-2[style*="border-color"] {
  background: #1C1236 !important;
}

/* ---- Testimonianze card ---- */
html.dark .bg-white.border-2.border-gray-100.p-8 { background: #1C1236 !important; border-color: #2D1F4E !important; }

/* ---- Footer: già scuro, piccoli aggiustamenti ---- */
html.dark .footer { background: #060310; }

/* ---- Scrollbar dark ---- */
html.dark ::-webkit-scrollbar-track { background: #160D2B; }

/* ---- FAQ accordion (servizi) ---- */
.faq-item {
  border-bottom: 1px solid #e5e7eb;
}
html.dark .faq-item { border-bottom-color: #2D1F4E; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1rem;
  color: #111111;
  transition: color 0.2s;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--violet); }
html.dark .faq-item summary { color: #F0EAF8; }
html.dark .faq-item summary:hover { color: #c4b5fd; }
.faq-item summary .faq-arrow {
  width: 1.5rem; height: 1.5rem;
  flex-shrink: 0;
  color: var(--violet);
  transition: transform 0.3s;
}
details[open] .faq-arrow { transform: rotate(180deg); }
.faq-body {
  padding-bottom: 1.25rem;
  font-size: 0.9375rem;
  color: #4b5563;
  line-height: 1.75;
}
html.dark .faq-body { color: #9B8AC4; }

/* ---- Validazione form ---- */
.field-error {
  font-size: 0.8125rem;
  color: #dc2626;
  margin-top: 0.375rem;
  display: none;
}
.form-input.invalid {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.1) !important;
}
html.dark .field-error { color: #f87171; }