/* ========================================
   InsegnaTabacchi.it - Premium CSS Stylesheet
   Design System & Global Styles
   ======================================== */

/* ========== VARIABILI CSS ========== */
:root {
  /* Palette Colori Brand - No Green */
  --color-primary: #111827;         /* antracite */
  --color-primary-dark: #030712;    /* quasi nero */
  --color-secondary: #FFFFFF;       /* bianco */
  --color-accent-red: #DC2626;      /* rosso principale */
  --color-accent-red-soft: #EF4444; /* rosso hover */
  --color-accent-blue: #2563EB;     /* secondario tecnico opzionale */

  /* Colori di Supporto */
  --color-gray-light: #F8FAFC;
  --color-gray-medium: #E5E7EB;
  --color-gray-dark: #374151;
  --color-text: #111827;
  --color-text-light: #4B5563;

  /* Tipografia */
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(17, 24, 39, 0.06);
  --shadow-md: 0 8px 24px rgba(17, 24, 39, 0.10);
  --shadow-lg: 0 16px 40px rgba(17, 24, 39, 0.14);
  --shadow-glow-red: 0 0 24px rgba(220, 38, 38, 0.25);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========== RESET & BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

/* ========== TIPOGRAFIA ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
  line-height: 1.7;
}

.lead {
  font-size: 1.375rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-light);
}

/* ========== LAYOUT UTILITIES ========== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section-small {
  padding: var(--spacing-xl) 0;
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.flex {
  display: flex;
  gap: var(--spacing-md);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.text-center {
  text-align: center;
}

/* ========== HEADER & NAVIGATION ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1440px;
  margin: 0 auto;
}

.site-logo {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-primary);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-logo .led-accent {
  color: var(--color-accent-red);
  text-shadow: var(--shadow-glow-red);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  padding: 0.5rem 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-red);
  transition: width var(--transition-fast);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* ========== BUTTONS & CTAs ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-primary);
  font-size: 1.125rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%);
  color: white;
  box-shadow: 0 8px 22px rgba(220, 38, 38, 0.30);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #B91C1C 0%, #991B1B 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(220, 38, 38, 0.36);
}

.btn-secondary {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-red {
  background: var(--color-accent-red);
  color: #ffffff;
  box-shadow: var(--shadow-glow-red);
}

.btn-red:hover {
  background: var(--color-accent-red-soft);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Sticky CTA Button */
.sticky-cta {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* ========== HERO SECTION ========== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(220,38,38,0.14), transparent 60%),
    radial-gradient(900px 400px at 90% 0%, rgba(148,163,184,0.16), transparent 55%),
    linear-gradient(135deg, #030712 0%, #111827 55%, #1F2937 100%);
  color: white;
  overflow: hidden;
  margin-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(220, 38, 38, 0.10) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(239, 68, 68, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-text h1 {
  color: white;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-text .lead {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-lg);
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(2, 6, 23, 0.45);
}

/* ========== FEATURE CARDS ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid rgba(148, 163, 184, 0.20);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(220, 38, 38, 0.45);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-accent-red) 0%, var(--color-accent-red-soft) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 2rem;
  color: white;
  box-shadow: var(--shadow-glow-red);
}

.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  color: var(--color-text-light);
  font-size: 1rem;
}

/* ========== STEPS SECTION ========== */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.step-item {
  position: relative;
  text-align: center;
  padding: var(--spacing-lg);
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-sm);
  box-shadow: 0 10px 26px rgba(220, 38, 38, 0.30);
}

.step-item h3 {
  margin-bottom: var(--spacing-xs);
}

/* ========== TESTIMONIALS ========== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.testimonial-card {
  background: var(--color-gray-light);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent-red);
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.author-info {
  flex: 1;
}

.author-name {
  font-weight: 600;
  color: var(--color-primary);
}

.author-business {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* ========== PRODUCT CARDS ========== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid rgba(148, 163, 184, 0.20);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(220, 38, 38, 0.45);
}

.product-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--color-accent-red);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
}

.product-image {
  height: 250px;
  background: linear-gradient(135deg, #111827 0%, #030712 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-content {
  padding: var(--spacing-lg);
}

.product-title {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.product-features {
  list-style: none;
  margin: var(--spacing-sm) 0;
}

.product-features li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-light);
}

.product-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent-red);
  font-weight: bold;
}

/* ========== FORM STYLES ========== */
.contact-form {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(148, 163, 184, 0.20);
  max-width: 800px;
  margin: var(--spacing-lg) auto;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--color-gray-medium);
  border-radius: var(--radius-md);
  font-family: var(--font-secondary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-red);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.checkbox-group label {
  font-weight: 400;
  font-size: 0.9rem;
}

/* ========== FAQ SECTION ========== */
.faq-container {
  max-width: 900px;
  margin: var(--spacing-lg) auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md);
  background: white;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-gray-light);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-accent-red);
  transition: transform var(--transition-fast);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--color-text-light);
}

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

/* ========== GALLERY / CASE STUDIES ========== */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.case-study-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(148, 163, 184, 0.20);
  transition: all var(--transition-normal);
}

.case-study-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(220, 38, 38, 0.45);
}

.case-study-image {
  height: 300px;
  background: var(--color-gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.case-study-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-study-content {
  padding: var(--spacing-lg);
}

.case-study-location {
  display: inline-block;
  background: var(--color-accent-red);
  color: #ffffff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.case-study-content h3 {
  margin-bottom: var(--spacing-sm);
}

.case-study-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 2px solid var(--color-gray-light);
}

.meta-item {
  display: flex;
  gap: 0.5rem;
}

.meta-label {
  font-weight: 600;
  color: var(--color-primary);
}

.meta-value {
  color: var(--color-text-light);
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--color-accent-red-soft);
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 0.5rem;
  display: block;
}

.footer-section a:hover {
  color: #FCA5A5;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - 70px);
    background: white;
    box-shadow: var(--shadow-lg);
    transition: left var(--transition-normal);
    padding: var(--spacing-md);
  }

  .main-nav.active {
    left: 0;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .btn-group {
    flex-direction: column;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .sticky-cta {
    bottom: 1rem;
    right: 1rem;
  }

  .feature-grid,
  .product-grid,
  .case-study-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-delay-1 {
  animation-delay: 0.1s;
  opacity: 0;
}

.animate-delay-2 {
  animation-delay: 0.2s;
  opacity: 0;
}

.animate-delay-3 {
  animation-delay: 0.3s;
  opacity: 0;
}

/* ========== UTILITIES ========== */
.bg-dark {
  background: var(--color-primary);
  color: white;
}

.bg-light {
  background: var(--color-gray-light);
}

.bg-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}
/* Fix product card images */
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Form status messages */
.form-status { padding: 1rem 1.5rem; border-radius: 8px; margin-top: 1rem; font-weight: 600; text-align: center; display: none; }
.form-status.success { display: block; background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.form-status.error { display: block; background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.form-status.sending { display: block; background: #eff6ff; color: #1e40af; border: 1px solid #93c5fd; }

/* Green CTA button */
.btn-green {
  background: #16a34a;
  color: #ffffff;
  box-shadow: 0 0 20px rgba(22, 163, 74, 0.3);
}
.btn-green:hover {
  background: #15803d;
  transform: translateY(-2px);
}

/* Fix product card images on desktop — constrain height, center crop */
.product-card .product-image {
  height: 280px;
  overflow: hidden;
  position: relative;
}
.product-card .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Fix case-study / installation gallery images */
.case-study-image, .grid-3 .product-image {
  height: 280px;
  overflow: hidden;
}
.case-study-image img, .grid-3 .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

@media (max-width: 768px) {
  .product-card .product-image {
    height: 220px;
  }
  .case-study-image, .grid-3 .product-image {
    height: 200px;
  }
}

/* Ensure grid-2 and grid-3 work standalone */
.grid-2, .grid-3, .grid-4 {
  display: grid;
  gap: var(--spacing-lg);
}