/* style.css - ZonaModa Design System */
:root, [data-theme="light"] {
  --color-bg:        #f8f8f8;
  --color-surface:   #ffffff;
  --color-border:    #e2e2e2;
  --color-text:      #111111;
  --color-text-muted:#6f6f6f;
  --color-text-faint:#a5a5a5;
  --color-accent:    #111111;
  --color-accent-soft:#f0f0f0;

  --font-display: 'Roboto Slab', 'Georgia', serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --text-xs:   clamp(0.75rem,  0.7rem + 0.25vw, 0.8rem);
  --text-sm:   clamp(0.85rem,  0.8rem + 0.25vw, 0.95rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.05rem);
  --text-lg:   clamp(1.15rem,  1.05rem + 0.25vw, 1.3rem);
  --text-xl:   clamp(1.6rem,   1.3rem + 0.5vw,  2.1rem);
  --text-2xl:  clamp(2.4rem,   1.8rem + 1vw,    3.2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: 1rem;
}

img, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* Preloader */
#preloader {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: var(--color-surface);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

#preloader video {
  max-width: 300px; /* Dimensioni indicative del logo video */
}

/* Layout */
.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: clamp(3rem, 6vw, 5rem);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  z-index: 100;
  padding-block: 1.2rem;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 64px; /* Ancora più grande */
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-header {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  background-color: var(--color-text);
  color: var(--color-surface);
  border-radius: 999px;
  transition: background-color 0.2s;
}

.btn-header:hover {
  background-color: var(--color-text-muted);
}

/* Blog button — less prominent, ghost style */
.btn-header-ghost {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  padding: 0.6rem 1.2rem;
  background-color: transparent;
  color: var(--color-text-muted);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.btn-header-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  background-color: var(--color-accent-soft);
}

@media (max-width: 768px) {
  .logo img {
    height: 48px;
  }
}

/* Bottoni */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #000000;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-accent-soft);
}

/* Input e Select */
.input, .select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  appearance: none;
  cursor: pointer;
}

.input:focus-visible, .select:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

/* Hero Section Principale */
.main-hero {
  position: relative;
  height: 85vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: #111111;
  background-image: url('https://via.placeholder.com/1920x1080/111111/333333?text=Immagine+Hero');
  background-size: cover;
  background-position: center;
  z-index: 1;
}

/* Overlay per migliorare leggibilità */
.hero-background::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 2rem + 5vw, 6rem);
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em; /* Rende il font più compatto e impattante */
}

.hero-subtitle {
  font-size: var(--text-lg);
  font-family: var(--font-body);
  opacity: 0.9;
}

/* Hero & Product Section (Desktop = 2 colonne, Mobile = 1) */
.product-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .product-hero {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
  }
}

.product-gallery img {
  width: 100%;
  border-radius: 0.75rem;
  background-color: var(--color-border);
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.badge {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.product-title {
  font-size: var(--text-2xl);
  margin-bottom: 0.5rem;
}

.product-price {
  font-size: var(--text-xl);
  font-family: var(--font-body);
  font-weight: 500;
  margin-bottom: 1rem;
}

.product-desc {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.benefits-list {
  margin-block: 1rem;
}

.benefits-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: var(--text-base);
}

.benefits-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  background: none;
  border: none;
  font-size: var(--text-lg);
  font-family: var(--font-display);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* Footer */
.footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-block: 5rem 3rem;
  margin-top: 5rem;
}

.footer .container {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

/* Footer Brand (Logo & Tagline) */
.footer-brand {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.footer-logo-link {
  display: inline-block;
}

.footer-logo {
  height: 80px;
  width: auto;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-logo:hover {
  transform: scale(1.05);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 420px;
  line-height: 1.6;
}

/* Footer Grid */
.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem 2rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: 3.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: 0;
}

.footer-col-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
  width: fit-content;
}

.footer-col-links a:hover {
  color: var(--color-text);
  transform: translateX(4px);
}

.footer-contact-info li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-contact-info span {
  font-weight: 500;
  color: var(--color-text);
}

/* Social icons */
.footer-socials {
  display: flex;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.footer-socials a {
  color: var(--color-text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
  display: flex;
  align-items: center;
}

.footer-socials a:hover {
  color: var(--color-text);
  transform: translateY(-2px);
}

.footer-socials svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

/* Footer Bottom */
.footer-bottom {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-info-extra {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Error message area */
#error-message {
  color: #d32f2f;
  font-size: var(--text-sm);
  margin-top: 0.5rem;
  display: none;
}