/* ==========================================================================
   VALE MENCARINI — BASE & LAYOUT CSS
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-sand);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Base Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
p { font-size: var(--text-base); color: var(--color-text-main); }
a { color: inherit; text-decoration: none; transition: var(--transition-fast); }
img, video { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; }

/* Section Containers */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: var(--container-md);
  margin-left: auto;
  margin-right: auto;
}

.container-wide {
  max-width: var(--container-2xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Section Spacing & Themes */
.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  position: relative;
}

.section-dark {
  background-color: var(--color-primary-dark);
  color: var(--color-text-light);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-sand);
}

.section-dark p {
  color: var(--color-text-light-muted);
}

.section-forest {
  background-color: var(--color-primary);
  color: var(--color-sand);
}

.section-forest h2,
.section-forest h3 {
  color: var(--color-white);
}

.section-forest p {
  color: var(--color-sand-dark);
}

.section-light {
  background-color: var(--color-sand);
  color: var(--color-text-main);
}

.section-sage {
  background-color: #EAE8E1;
  color: var(--color-text-main);
}

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto var(--space-3xl) auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background-color: rgba(153, 101, 51, 0.12);
  color: var(--color-accent);
  border: 1px solid var(--border-border-accent, rgba(153, 101, 51, 0.25));
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-dark .section-tag,
.section-forest .section-tag {
  background-color: rgba(153, 101, 51, 0.2);
  color: var(--color-accent-light);
  border-color: rgba(222, 155, 91, 0.35);
}

.section-title {
  margin-bottom: var(--space-md);
  font-size: var(--text-4xl);
}

.section-subtitle {
  font-size: var(--text-lg);
  line-height: 1.6;
  opacity: 0.9;
}

/* Grid Utilities */
.grid { display: grid; gap: var(--space-xl); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }
}

@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
  .container { padding-left: var(--space-md); padding-right: var(--space-md); }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  padding: var(--space-md) 0;
  background: linear-gradient(180deg, rgba(12, 23, 16, 0.6) 0%, rgba(12, 23, 16, 0) 100%);
  transition: background-color 0.35s ease, background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(13, 28, 18, 0.94);
  background-color: rgba(13, 28, 18, 0.94);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: var(--space-xs) 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--border-glass);
}

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

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 10;
}

.navbar-logo img {
  height: 52px;
  width: 52px;
  object-fit: contain;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  transition: transform var(--transition-fast), height 0.3s ease, width 0.3s ease;
}

.navbar.scrolled .navbar-logo img {
  height: 44px;
  width: 44px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-sand);
  letter-spacing: 0.02em;
  position: relative;
  padding: 4px 0;
  opacity: 0.85;
}

.nav-link:hover, .nav-link.active {
  opacity: 1;
  color: var(--color-accent-light);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-sand);
  padding: var(--space-xs);
  z-index: 10;
}

@media (max-width: 960px) {
  .mobile-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 380px;
    height: 100vh;
    background-color: var(--color-primary-dark);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-3xl) var(--space-xl);
    gap: var(--space-lg);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--border-glass);
    z-index: var(--z-dropdown);
  }

  .nav-links.open { right: 0; }
  .nav-link { font-size: var(--text-lg); }
  .nav-actions .btn-nav { display: none; }
}

/* Footer */
.footer {
  background-color: var(--color-dark-bg);
  color: var(--color-text-light-muted);
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-xl);
  border-top: 1px solid var(--border-glass);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-4xl);
}

.footer-brand {
  max-width: 380px;
}

.footer-brand img {
  height: 120px;
  width: 120px;
  object-fit: contain;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
  margin-bottom: var(--space-md);
  border: 1px solid var(--border-glass-hover);
}

.footer-brand p {
  color: var(--color-sand);
  font-size: var(--text-sm);
  line-height: 1.65;
  margin-top: var(--space-xs);
  opacity: 0.95;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.footer-social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(244, 243, 239, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--color-sand);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social-btn svg {
  flex-shrink: 0;
}

.footer-social-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent-light);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(153, 101, 51, 0.35);
}

.footer-title {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-sand);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-sand-dark);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(244, 243, 239, 0.08);
  font-size: var(--text-xs);
  color: var(--color-stone);
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}