/* ==========================================================================
   GLOBAL CSS — BUFFALO MANUFACTURA ARQUITECTÓNICA
   Typography, Layout, Buttons, Animations, Accessibility (Inverted Light Theme)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

/* Main Structure */
.site-container {
  width: 100%;
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding-left: var(--site-gutter);
  padding-right: var(--site-gutter);
}

.section-padding {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.section-padding-lg {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

/* Editorial Headers & Typography */
.label-editorial {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-purpura-arquitectonico);
  margin-bottom: var(--space-sm);
}

.label-editorial::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--color-purpura-arquitectonico);
}

.heading-display {
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: var(--fw-black);
  letter-spacing: -0.03em;
  text-transform: uppercase;
  line-height: 0.95;
  color: var(--color-carbon-profundo);
}

.heading-section {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-carbon-profundo);
}

.subheading-editorial {
  font-size: clamp(1.1rem, 2vw, 1.6rem);
  font-weight: var(--fw-light);
  line-height: 1.5;
  color: var(--color-text-secondary);
  max-width: 42ch;
}

.text-body {
  font-size: 1rem;
  font-weight: var(--fw-regular);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.text-lead {
  font-size: 1.25rem;
  font-weight: var(--fw-light);
  color: var(--color-carbon-profundo);
  line-height: 1.6;
}

/* Architectural Lines & Dividers */
.divider-line {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: var(--space-lg) 0;
}

/* Premium Architectural Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.15rem 2.4rem;
  font-size: 0.85rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #FFFFFF;
  background-color: var(--color-purpura-arquitectonico);
  border: 1px solid var(--color-purpura-arquitectonico);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary:hover {
  background-color: var(--color-carbon-profundo);
  border-color: var(--color-carbon-profundo);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(43, 18, 76, 0.25);
}

.btn-primary .btn-arrow {
  transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(6px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.15rem 2.4rem;
  font-size: 0.85rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-carbon-profundo);
  background-color: transparent;
  border: 1px solid var(--color-purpura-arquitectonico);
  transition: all var(--transition-fast);
}

.btn-outline:hover {
  border-color: var(--color-purpura-arquitectonico);
  color: #FFFFFF;
  background: var(--color-purpura-arquitectonico);
  transform: translateY(-2px);
}

/* Dark contrast block utility */
.theme-dark-accent {
  background-color: var(--color-carbon-profundo);
  color: #FFFFFF;
}

.theme-dark-accent .heading-display,
.theme-dark-accent .heading-section {
  color: #FFFFFF;
}

.theme-dark-accent .text-body,
.theme-dark-accent .subheading-editorial {
  color: rgba(255, 255, 255, 0.82);
}

.theme-dark-accent .label-editorial {
  color: var(--color-rosa-empolvado);
}

.theme-dark-accent .label-editorial::before {
  background-color: var(--color-rosa-empolvado);
}

.theme-dark-accent .btn-outline {
  border-color: var(--color-rosa-empolvado);
  color: #FFFFFF;
}

.theme-dark-accent .btn-outline:hover {
  background-color: var(--color-rosa-empolvado);
  color: var(--color-carbon-profundo);
}

/* Scroll Reveal Animations */
.reveal-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
  will-change: opacity, transform;
}

.reveal-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-clip {
  clip-path: inset(0 100% 0 0);
  transition: clip-path var(--transition-slow);
}

.reveal-clip.is-visible {
  clip-path: inset(0 0 0 0);
}

/* Focus States for Accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-purpura-arquitectonico);
  outline-offset: 4px;
}

/* Reduced Motion */
@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;
  }
  
  .reveal-fade-up, .reveal-clip {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
}