/* variables */
:root {
  --color-bg: #fcfcfc;
  --color-white: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-text-muted: #717171;
  --color-border: #e1e1e1;
  --color-primary: #2d3436;
  --color-accent: #636e72;
  --color-hover: #f5f5f5;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.1);
  --border-radius: 24px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.4);
}

/* Body styles */
body {
  background: var(--color-bg);
  font-family: 'Inter', Arial, sans-serif;
  color: var(--color-text);
  margin: 0;
  padding: 0;
}

/* Skip link — first keyboard stop for screen reader / keyboard users */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  z-index: 30000;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--border-radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  left: max(var(--spacing-sm), env(safe-area-inset-left));
  top: max(var(--spacing-sm), env(safe-area-inset-top));
  outline: none;
}

.skip-link:focus-visible {
  box-shadow: 0 0 0 3px var(--color-bg), 0 0 0 6px var(--color-accent);
}

/* Visible keyboard focus — matches site accent */
a:focus-visible,
button:focus-visible,
.nav-button:focus-visible,
.filter-btn:focus-visible,
.contact-submit:focus-visible,
.back-link:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-white), 0 0 0 4px var(--color-accent);
}

.button:focus-visible,
.button-outline:focus-visible {
  box-shadow: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-primary);
}

/* Main page container */
.page {
  max-width: 900px;
  margin: var(--spacing-xxl) auto var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xxl) var(--spacing-xl) 60px;
}

/* Section divider */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-xl) 0;
}

/* Section base styles */
.section {
  margin-bottom: var(--spacing-xl);
}

/* Section title */
.section-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* Site footer */
.site-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}
/* Desktop footer hidden on mobile */
.site-footer.mobile-footer {
  display: none;
}

/* Section text */
.section-text {
  color: var(--color-text-light);
  font-size: 1rem;
  margin-bottom: 10px;
  text-align: justify;
}

/* Button styles */
.button {
  display: inline-block;
  padding: var(--spacing-xs) 18px;
  border-radius: var(--border-radius-sm);
  background: none;
  color: var(--color-text);
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s, border 0.2s;
  cursor: pointer;
}

.button:hover {
  background: var(--color-hover);
  border: 1px solid #ddd;
}

/* Arrow icon in buttons */
.arrow-icon {
  width: 16px;
  height: 16px;
  margin-left: var(--spacing-xs);
  vertical-align: middle;
}

@media (max-width: 768px) {
  .site-footer.desktop-footer {
    display: none;
  }
  .site-footer.mobile-footer {
    display: block;
  }
}
/* Scroll Reveal Animation Styles */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), 
              transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
  will-change: opacity, transform;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}