:root{
  /* Monochrome modern palette */
  --bg-ink: #0b0b0c;           /* main page background */
  --bg-deep: #0f1113;          /* navbar deep */
  --bg-mid: #141519;           /* subtle mid tone */
  --muted-1: #bfbfbf;          /* muted text */
  --muted-2: #9b9b9b;          /* secondary muted */
  --ui-contrast: #ffffff;      /* bright white for CTAs/text */
  --glass: rgba(255,255,255,0.03);
  --accent: rgba(255,255,255,0.08);
  --shadow: rgba(2,6,23,0.7);
  /* Modern accent colors (very subtle) */
  --accent-blue: rgba(99, 179, 237, 0.08);
  --accent-purple: rgba(159, 122, 234, 0.08);
  --accent-teal: rgba(56, 178, 172, 0.08);
  /* Glass gradients */
  --glass-gradient: linear-gradient(180deg, var(--glass), rgba(255,255,255,0.01));
  --glass-gradient-2: linear-gradient(120deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
}

/* Base page */
html,body{
  height: 100%;
}
body{
  background: var(--bg-ink);
  color: var(--muted-1);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Subtle global colored blur accents (decorative) */
body::before{
  content: '';
  position: fixed;
  inset: -20% -20% -20% -20%;
  pointer-events: none;
  background:
    radial-gradient(600px 400px at 10% 20%, var(--accent-blue) 0%, transparent 40%),
    radial-gradient(500px 300px at 90% 10%, var(--accent-purple) 0%, transparent 30%),
    radial-gradient(400px 300px at 80% 80%, var(--accent-teal) 0%, transparent 35%);
  filter: blur(80px) saturate(120%);
  opacity: 0.28;
  z-index: 0;
}

/* ensure page content sits above the decorative blur */
main, nav, header, footer, .container{ position: relative; z-index: 1 }

/* NAVBAR */
.navbar{
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.6rem;
  background: linear-gradient(90deg, rgba(20,21,24,0.85), rgba(10,11,12,0.95));
  backdrop-filter: saturate(120%) blur(6px);
  box-shadow: 0 8px 30px var(--shadow);
}

.logo a{
  color: var(--ui-contrast);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-decoration: none;
}
.logo a:hover,
.logo a:focus{
  color: var(--muted-1);
}

/* nav toggle (hamburger) */
.nav-toggle{
  display: none; /* shown on mobile */
  background: transparent;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}
.nav-toggle:focus{outline: 2px solid rgba(255,255,255,0.12); border-radius:6px}
.nav-toggle .hamburger{
  display:block;
  width:22px;
  height:2px;
  background: var(--muted-1);
  position:relative;
}
.nav-toggle .hamburger::before,
.nav-toggle .hamburger::after{
  content: '';
  position:absolute;
  left:0;
  width:22px;
  height:2px;
  background: var(--muted-1);
  transition: transform 220ms ease, opacity 180ms ease;
}
.nav-toggle .hamburger::before{ top: -7px }
.nav-toggle .hamburger::after{ top: 7px }

/* when open, animate hamburger into X */
.navbar.open .nav-toggle .hamburger{ background: transparent }
.navbar.open .nav-toggle .hamburger::before{ transform: rotate(45deg) translate(4px, 4px) }
.navbar.open .nav-toggle .hamburger::after{ transform: rotate(-45deg) translate(4px,-4px) }

.nav_links{
  display:flex;
  gap: 1.1rem;
  align-items:center;
}
.nav_links a{
  color: var(--muted-1);
  text-decoration: none;
  padding: 0.55rem 0.6rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.98rem;
  transition: color 180ms ease, background 180ms ease, transform 140ms ease;
}
.nav_links a:not(.login):hover,
.nav_links a:not(.login):focus{
  color: var(--ui-contrast);
  background: var(--glass);
  transform: translateY(-1px);
}

.nav_links a::after{
  content: '';
  display:block;
  height:2px;
  width:0;
  background: var(--ui-contrast);
  border-radius:2px;
  transition: width 220ms ease;
}
.nav_links a:not(.login):hover::after{ width: 100% }

.login {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.95rem;
  gap: 0.4rem;
  background: var(--glass-gradient-2);
  color: var(--ui-contrast);
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: box-shadow 180ms ease, background-color 180ms ease, transform 120ms ease;
  font-weight: 700;
  backdrop-filter: blur(6px);
  box-shadow: 0 6px 18px -10px var(--shadow);
}

/* Non sollevare il pulsante: cambia solo background, shadow e applica una leggera scala su hover */
.login:hover{
  transform: scale(1.02);
  box-shadow: 0 12px 28px -10px var(--shadow);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.02));
  border-color: rgba(255,255,255,0.12);
}

.login:active{ transform: scale(0.995) }

/* Mobile: ensure it doesn't overflow and fills nav width cleanly */
@media (max-width:820px){
  .nav_links .login{
    display:block; /* stack like the links */
    width: calc(100% - 2.4rem);
    margin: 0.35rem auto;
    padding: 0.8rem 1rem;
    text-align: center;
  }
}

/* Focus-visible accessibility */
a:focus, .login:focus{ outline: 3px solid rgba(255,255,255,0.08); outline-offset: 3px }

/* Responsive: mobile menu */
@media (max-width: 820px){
  .nav-toggle{ display: block }
  .nav_links{
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(10,11,12,0.98), rgba(18,19,20,0.98));
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    max-height: 0;
    transition: max-height 320ms cubic-bezier(.2,.9,.2,1);
    border-top: 1px solid rgba(255,255,255,0.03);
  }
  .nav_links a{ padding: 0.95rem 1.2rem; border-bottom: 1px solid rgba(255,255,255,0.03); }
  .navbar.open .nav_links{ max-height: 420px; }
  .nav_links{ width:100%; }
}

/* Additional mobile safety: prevent transforms causing overflow and ensure sizing fits */
@media (max-width:820px){
  .nav_links{ box-sizing: border-box; padding: 0.6rem 0; }
  .nav_links a, .nav_links .login{ transform: none !important; }
  .nav_links .login{ display:block; width: calc(100% - 2.4rem); margin: 0.35rem auto; padding: 0.8rem 1rem; text-align:center; box-sizing: border-box; }
  .nav_links .login:hover{ transform: none; box-shadow: 0 10px 22px -10px var(--shadow); }
}

/* small tweaks for very wide screens */
@media (min-width: 1200px){
  .navbar{ padding: 1rem 3rem }
  .logo a{ font-size: 1.5rem }
}

/* keep legacy resets if other elements exist */
*{ box-sizing: border-box }
/* layout container helper */
.container{ max-width:1100px; margin: 0 auto; padding: 0 1rem }

/* Shop page enhancements */
.shop-header {
  padding: 4rem 0 3rem;
  text-align: center;
  background: 
    radial-gradient(800px at 50% 100px, var(--accent-blue) 0%, transparent 50%),
    radial-gradient(600px at 80% 40%, var(--accent-purple) 0%, transparent 50%),
    linear-gradient(180deg, var(--glass), transparent);
  position: relative;
  overflow: hidden;
}

.shop-header::before {
  content: '';
  position: absolute;
  inset: 0;
  backdrop-filter: blur(120px);
  z-index: 1;
}

.shop-header > * {
  position: relative;
  z-index: 2;
}

.shop-header h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0;
  background: linear-gradient(180deg, var(--ui-contrast) 30%, var(--muted-1));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.shop-header .lead {
  color: var(--muted-2);
  max-width: 600px;
  margin: 1.2rem auto 0;
  font-size: 1.1rem;
  line-height: 1.6;
}

.shop-categories {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.category-tag {
  padding: 0.6rem 1.2rem;
  background: var(--glass-gradient);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  color: var(--muted-1);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 180ms ease;
  backdrop-filter: blur(8px);
}

.category-tag:hover {
  border-color: rgba(255,255,255,0.15);
  color: var(--ui-contrast);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px -6px var(--shadow);
}

/* products grid */
.products-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.1rem;
  margin-top: 1rem;
}
.product-card {
  display: block; /* anchor as block so whole card is clickable */
  background: var(--glass-gradient-2);
  padding: 1.5rem;
  border-radius: 16px;
  text-align: center;
  transition: all 280ms cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
  text-decoration: none; /* remove underline */
  color: inherit; /* keep text color */
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-teal);
  opacity: 0;
  transition: opacity 280ms ease;
}

.product-card > * {
  position: relative;
  z-index: 1;
}

.product-card img { 
  width: 100%;
  height: auto;
  border-radius: 12px;
  transition: transform 280ms ease;
  box-shadow: 0 8px 24px -6px var(--shadow);
  aspect-ratio: 4 / 3; /* keep consistent image proportions */
  object-fit: cover;
  max-height: 260px;
}

.product-card:focus{
  outline: 3px solid rgba(255,255,255,0.08);
  outline-offset: 4px;
  border-radius: 16px;
}

.product-card .price { 
  color: var(--muted-1);
  margin-top: 0.4rem;
  font-weight: 600;
  font-size: 1.05rem;
  transition: color 180ms ease;
}

.product-card:hover { 
  transform: translateY(-8px);
  border-color: rgba(255,255,255,0.12);
  box-shadow: 0 24px 48px -12px var(--shadow);
}

.product-card:hover::before {
  opacity: 0.5;
}

.product-card:hover img {
  transform: scale(1.04);
}

.product-card:hover .price {
  color: var(--ui-contrast);
}

/* product detail */
.product-detail .product-detail-inner{ display:grid; grid-template-columns: 1fr 1fr; gap:2rem; align-items:center; padding:3rem 0 }
.product-hero{ width:100%; border-radius:12px }
.product-meta h1{ margin-top:0 }
.product-meta .price{ font-weight:700; font-size:1.2rem; color:var(--ui-contrast) }
.product-meta .desc{ color:var(--muted-2) }

@media (max-width:820px){
  .product-detail .product-detail-inner{ grid-template-columns: 1fr; }
}

/* tighter spacing for small screens */
@media (max-width:480px){
  .products-grid{
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  .product-card{
    padding: 1rem;
  }
  .product-card img{ max-height: 180px }
  .product-card h3{ font-size: 1rem }
}

/* featured section heading */
.featured{ padding:3rem 0 }
.featured h2{ text-align:center; color:var(--ui-contrast); margin:0 0 1rem 0 }

/* Spinner overlay */
.spinner-overlay{
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,7,9,0.55);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 260ms ease, visibility 260ms ease;
}
.spinner-overlay.visible{ opacity: 1; visibility: visible }
.spinner{
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 5px solid rgba(255,255,255,0.08);
  border-top-color: var(--ui-contrast);
  animation: spin 1s linear infinite;
  box-shadow: 0 8px 24px rgba(2,6,23,0.5);
}
@keyframes spin{ to{ transform: rotate(360deg) } }
.sr-only{ position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0 }

/* When fully loaded, hide overlay quickly */
body.loaded .spinner-overlay{ opacity:0; visibility:hidden }

/* Contact page enhancements */
.contact-email {
  color: var(--ui-contrast);
  text-decoration: none;
  padding: 0.2rem 0.4rem;
  background: var(--glass);
  border-radius: 4px;
  transition: all 180ms ease;
}

.contact-email:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

/* About page enhancements */
.about-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 0;
}

.about-content .lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--muted-1);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.about-card {
  background: var(--glass);
  padding: 1.5rem;
  border-radius: 12px;
  transition: transform 180ms ease;
}

.about-card:hover {
  transform: translateY(-4px);
}

.about-card h3 {
  color: var(--ui-contrast);
  margin: 0 0 0.5rem 0;
}

.about-card p {
  color: var(--muted-2);
  margin: 0;
  line-height: 1.5;
}

/* Form styles (remove inline styles and use CSS) */
.form-field{ display:block; margin-top:0.6rem }
.form-field input[type="text"], .form-field input[type="email"], .form-field input[type="password"], .form-field textarea{
  width:100%;
  padding:0.6rem 0.7rem;
  border-radius:8px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
  color: var(--muted-1);
  font-size:0.95rem;
}
.form-field textarea{ min-height:120px; resize:vertical }
.form-field label{ color:var(--muted-1); font-weight:600 }

/* small responsive tweak for hero and overview */
.overview-card{ background: rgba(255,255,255,0.02); padding:1rem; border-radius:10px }
.overview-card a{ color: var(--ui-contrast); text-decoration: underline; text-decoration-color: rgba(255,255,255,0.06); transition: color 180ms ease, text-decoration-color 180ms ease; }
.overview-card a:hover{ color: var(--muted-1); text-decoration-color: rgba(255,255,255,0.14); }

/* Shop product container spacing improvements */
.products.container{ padding: 2.25rem 1rem 4rem; }
.products-grid{ gap: 1.25rem; }
.product-card h3 a{ color: inherit; text-decoration: none }
.product-card h3 a:hover{ text-decoration: underline; color: var(--ui-contrast); }

/* HERO */
.hero{
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 6rem 1.25rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01)), radial-gradient(1200px 400px at 10% 20%, rgba(255,255,255,0.02), transparent 10%), var(--bg-ink);
  color: var(--ui-contrast);
}
.hero-inner{
  max-width: 980px;
  text-align: center;
}
.hero h1{
  font-size: clamp(1.6rem, 4.6vw, 3.6rem);
  margin: 0 0 0.6rem 0;
  line-height: 1.02;
  color: var(--ui-contrast);
  font-weight: 800;
  letter-spacing: -0.6px;
}
.hero .lead{
  color: var(--muted-2);
  font-size: 1.05rem;
  margin: 0 0 1.4rem 0;
}
.hero-ctas{ display:flex; gap: 0.9rem; justify-content:center; flex-wrap:wrap }
.cta{
  display:inline-block;
  padding: 0.65rem 1.05rem;
  border-radius: 999px;
  background: var(--ui-contrast);
  color: var(--bg-deep);
  text-decoration: none;
  font-weight: 700;
  transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}
.cta:hover{ transform: translateY(-3px); box-shadow: 0 10px 30px rgba(2,6,23,0.45) }
.cta.ghost{ background: transparent; color: var(--muted-1); border: 1px solid rgba(255,255,255,0.06) }

@media (max-width:520px){
  .hero{ padding: 3.25rem 1rem }
  .hero .lead{ font-size: 0.97rem }
}