/* ============================================
   UTILITIES - Helpers, Grid, Layout
   ILPI Lucrativa | Premium Design System
   ============================================ */

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

.sr-only--focusable:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--color-dourado);
  color: var(--color-azul-profundo);
  font-weight: var(--font-weight-bold);
  z-index: var(--z-toast);
}

/* --- CONTAINER PREMIUM (mais apertado = mais premium) --- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding-inline: 20px;
}

@media (min-width: 768px) {
  .container { padding-inline: 40px; }
}

@media (min-width: 1024px) {
  .container { padding-inline: 60px; }
}

@media (min-width: 1440px) {
  .container { padding-inline: 0; }
}

/* --- SECTIONS (padding generoso = respiro luxury) --- */
.section {
  padding-block: var(--space-3xl);
  position: relative;
}

@media (min-width: 768px) {
  .section { padding-block: var(--space-4xl); }
}

@media (min-width: 1024px) {
  .section { padding-block: var(--space-5xl); }
}

@media (min-width: 1440px) {
  .section { padding-block: var(--space-6xl); }
}

/* --- SECTION BACKGROUNDS --- */
.section--bg-dark {
  background-color: var(--color-azul-escuro);
}

.section--bg-primary {
  background-color: var(--color-azul-profundo);
}

.section--bg-medium {
  background-color: var(--color-azul-medio);
}

.section--bg-gradient {
  background: var(--gradient-section-dark);
}

.section--bg-subtle {
  background: var(--gradient-section-subtle);
}

/* --- GRID SYSTEM --- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
}

/* --- TEXT ALIGNMENT --- */
.text-center { text-align: center; }
.text-left   { text-align: left; }

/* --- SCROLL REVEAL PREMIUM (mais suave e lento) --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Variantes de reveal */
.reveal--delay-1 { transition-delay: 100ms; }
.reveal--delay-2 { transition-delay: 200ms; }
.reveal--delay-3 { transition-delay: 300ms; }
.reveal--delay-4 { transition-delay: 400ms; }

.reveal--scale {
  opacity: 0;
  transform: scale(0.95) translateY(20px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
}

.reveal--scale.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- GLOW GOLD UTILITY --- */
.glow-gold {
  box-shadow: var(--shadow-glow-gold);
}

.glow-gold--strong {
  box-shadow: var(--shadow-glow-gold-strong);
}

.glow-gold--pulse {
  animation: pulse-glow 3s ease-in-out infinite;
}

/* --- GRADIENT TEXT UTILITY --- */
.gradient-text {
  background: var(--gradient-dourado-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- GLASSMORPHISM UTILITY --- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
}

.glass--light {
  background: var(--glass-bg-light);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
}

/* --- BORDER GRADIENT UTILITY --- */
.border-gradient-top {
  position: relative;
}

.border-gradient-top::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-dourado-border);
}

.border-gradient-left {
  position: relative;
}

.border-gradient-left::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-dourado), rgba(198, 167, 94, 0.1));
}

/* --- TEXT SHADOW UTILITY --- */
.text-shadow-dark {
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

/* --- SUBTLE TEXTURE OVERLAY --- */
.texture-dots {
  position: relative;
}

.texture-dots::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(198, 167, 94, 0.03) 1px, transparent 0);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.texture-dots > * {
  position: relative;
  z-index: var(--z-base);
}

/* --- SPACING UTILITIES --- */
.mt-0  { margin-top: 0; }
.mb-0  { margin-bottom: 0; }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-xl { margin-bottom: var(--space-xl); }