/* ==========================================================================
   Camp Experts Italia - Custom Styles
   Mediterranean design system: azure, terracotta, sand, charcoal
   WCAG AA compliant contrast ratios throughout
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts: Inter (body) + Playfair Display (headings)
   Subset includes Latin Extended for Italian accented vowels:
   à, è, é, ì, ò, ù
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&subset=latin,latin-ext&display=swap');

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Primary palette */
  --color-azure: #1B4F72;
  --color-azure-light: #3378B4;
  --color-azure-dark: #163F5B;
  --color-terracotta: #C0392B;
  --color-terracotta-light: #E65541;
  --color-terracotta-dark: #9A2E23;
  --color-sand: #F5E6CC;
  --color-sand-light: #FDF8F0;
  --color-charcoal: #2C3E50;
  --color-charcoal-light: #586F7F;
  --color-white: #FFFFFF;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Spacing */
  --section-padding-y: 5rem;
  --section-padding-y-sm: 3rem;
  --section-padding-y-lg: 7rem;

  /* Shadows */
  --shadow-card: 0 4px 6px -1px rgba(27, 79, 114, 0.08),
                 0 2px 4px -2px rgba(27, 79, 114, 0.05);
  --shadow-card-hover: 0 10px 25px -5px rgba(27, 79, 114, 0.12),
                       0 8px 10px -6px rgba(27, 79, 114, 0.06);
  --shadow-nav: 0 2px 8px -1px rgba(44, 62, 80, 0.1);

  /* Border radius */
  --radius-card: 0.75rem;
  --radius-button: 0.5rem;
  --radius-full: 9999px;
}

/* --------------------------------------------------------------------------
   Global Reset & Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-charcoal);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ensure Italian accented characters render cleanly */
body,
input,
textarea,
select,
button {
  font-feature-settings: 'liga' 1, 'calt' 1;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-azure);
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
}

h1 { font-size: 2.5rem; letter-spacing: -0.015em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; font-weight: 600; }
h3 { font-size: 1.5rem; letter-spacing: -0.005em; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

@media (min-width: 768px) {
  h1 { font-size: 3rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.75rem; }
}

@media (min-width: 1024px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

a {
  color: var(--color-azure);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-azure-light);
}

a:focus-visible {
  outline: 2px solid var(--color-azure-light);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */

/* Text utilities */
.text-balance {
  text-wrap: balance;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-azure), var(--color-azure-light));
  -webkit-background-clip: text;
  -webkit-text-color: transparent;
  background-clip: text;
  color: transparent;
}

/* Container */
.container-site {
  width: 100%;
  max-width: 75rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 640px) {
  .container-site {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-site {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* --------------------------------------------------------------------------
   Section Spacing
   -------------------------------------------------------------------------- */
.section {
  padding-top: var(--section-padding-y-sm);
  padding-bottom: var(--section-padding-y-sm);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--section-padding-y);
    padding-bottom: var(--section-padding-y);
  }
}

@media (min-width: 1024px) {
  .section-lg {
    padding-top: var(--section-padding-y-lg);
    padding-bottom: var(--section-padding-y-lg);
  }
}

/* --------------------------------------------------------------------------
   Button Styles
   WCAG AA: white (#FFF) on azure (#1B4F72) = 7.64:1 contrast ratio
   WCAG AA: white (#FFF) on terracotta (#C0392B) = 5.02:1 contrast ratio
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-azure-light);
  outline-offset: 2px;
}

/* Primary: azure background, white text */
.btn-primary {
  background-color: var(--color-azure);
  color: var(--color-white);
  border-color: var(--color-azure);
}

.btn-primary:hover {
  background-color: var(--color-azure-dark);
  border-color: var(--color-azure-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(27, 79, 114, 0.25);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary: terracotta background, white text */
.btn-secondary {
  background-color: var(--color-terracotta);
  color: var(--color-white);
  border-color: var(--color-terracotta);
}

.btn-secondary:hover {
  background-color: var(--color-terracotta-dark);
  border-color: var(--color-terracotta-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(192, 57, 43, 0.25);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Outline: transparent bg, azure border and text */
.btn-outline {
  background-color: transparent;
  color: var(--color-azure);
  border-color: var(--color-azure);
}

.btn-outline:hover {
  background-color: var(--color-azure);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Ghost: minimal style */
.btn-ghost {
  background-color: transparent;
  color: var(--color-azure);
  border-color: transparent;
  padding-left: 1rem;
  padding-right: 1rem;
}

.btn-ghost:hover {
  background-color: rgba(27, 79, 114, 0.06);
  color: var(--color-azure-dark);
}

/* Button sizes */
.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.125rem;
}

/* --------------------------------------------------------------------------
   Card Styles
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.card-body {
  padding: 1.5rem;
}

@media (min-width: 768px) {
  .card-body {
    padding: 2rem;
  }
}

.card-bordered {
  border: 1px solid #E5E7EB;
}

.card-sand {
  background-color: var(--color-sand-light);
}

/* --------------------------------------------------------------------------
   Navigation Styles
   -------------------------------------------------------------------------- */
.nav-link {
  position: relative;
  font-weight: 500;
  color: var(--color-charcoal);
  transition: color var(--transition-base);
  padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-azure);
}

/* Animated underline on desktop nav links */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-terracotta);
  transition: width var(--transition-base);
}

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

/* --------------------------------------------------------------------------
   Mobile Navigation Overlay
   -------------------------------------------------------------------------- */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgba(44, 62, 80, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 51;
  width: 85%;
  max-width: 24rem;
  background-color: var(--color-white);
  box-shadow: -4px 0 20px rgba(44, 62, 80, 0.15);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-overlay.is-open .mobile-nav-panel {
  transform: translateX(0);
}

.mobile-nav-link {
  display: block;
  padding: 1rem 1.5rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-charcoal);
  border-bottom: 1px solid #F3F4F6;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-sand-light);
  color: var(--color-azure);
}

/* Body scroll lock when mobile nav is open */
body.nav-open {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Top Bar (phone/WhatsApp strip)
   -------------------------------------------------------------------------- */
.top-bar {
  background-color: var(--color-azure);
  color: var(--color-white);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}

.top-bar a {
  color: var(--color-white);
  transition: opacity var(--transition-base);
}

.top-bar a:hover {
  opacity: 0.85;
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   WhatsApp Floating Action Button
   -------------------------------------------------------------------------- */
.whatsapp-fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 40;
  width: 3.5rem;
  height: 3.5rem;
  background-color: #25D366;
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-decoration: none;
}

.whatsapp-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.55);
  color: var(--color-white);
}

.whatsapp-fab:active {
  transform: scale(1.02);
}

.whatsapp-fab svg {
  width: 1.75rem;
  height: 1.75rem;
  fill: currentColor;
}

/* Pulse animation on load */
@keyframes fab-pulse {
  0%, 100% { box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.6); }
}

.whatsapp-fab {
  animation: fab-pulse 2.5s ease-in-out 3;
}

.whatsapp-fab:hover {
  animation: none;
}

/* --------------------------------------------------------------------------
   CTA Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-azure) 0%, var(--color-azure-dark) 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-banner h2,
.cta-banner h3 {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-charcoal);
  color: #D5DBDF;
}

/* Footer links: #D5DBDF on #2C3E50 = 7.8:1 ratio - WCAG AAA */
.site-footer a {
  color: #D5DBDF;
  transition: color var(--transition-base);
}

.site-footer a:hover {
  color: var(--color-white);
}

.site-footer h4,
.site-footer h5 {
  color: var(--color-white);
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.12);
}

/* --------------------------------------------------------------------------
   Miscellaneous Utilities
   -------------------------------------------------------------------------- */

/* Subtle background patterns */
.bg-sand-light {
  background-color: var(--color-sand-light);
}

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

/* Decorative accent line */
.accent-line {
  width: 3rem;
  height: 3px;
  background-color: var(--color-terracotta);
  border-radius: 2px;
}

.accent-line-center {
  margin-left: auto;
  margin-right: auto;
}

/* Image utilities */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Skip to content (accessibility) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-azure);
  color: var(--color-white);
  border-radius: var(--radius-button);
  font-weight: 600;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 1rem;
  color: var(--color-white);
}

/* Visually hidden (screen reader only) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print styles */
@media print {
  .top-bar,
  .whatsapp-fab,
  .mobile-nav-overlay,
  .cta-banner {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

/* ===== Sticky Mobile CTA ===== */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 45;
    background: white;
    border-top: 1px solid #E5E7EB;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.sticky-cta.is-visible { transform: translateY(0); }
@media (min-width: 1024px) { .sticky-cta { display: none !important; } }
.sticky-cta-visible .whatsapp-fab { bottom: 5.5rem; }