/* ============================================================================
   ALPHAFOOD DIGITAL — IDENTIDADE VISUAL E SISTEMA DE DESIGN (styles.css)
   ============================================================================
   Paleta Oficial:
   - Preto profundo: #080808
   - Preto secundário: #111111
   - Vermelho principal: #F12626
   - Vermelho de destaque: #FF3030
   - Amarelo/dourado: #FFC629
   - Branco: #F7F7F7
   - Cinza secundário: #A5A5A5
   ============================================================================ */

:root {
  --bg-deep: #080808;
  --bg-secondary: #111111;
  --red-primary: #F12626;
  --red-highlight: #FF3030;
  --yellow-gold: #FFC629;
  --white-text: #F7F7F7;
  --gray-secondary: #A5A5A5;
  --border-subtle: rgba(247, 247, 247, 0.08);
  --border-red-glow: rgba(241, 38, 38, 0.35);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
  background-color: var(--bg-deep);
  color: var(--white-text);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-deep);
  color: var(--white-text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .font-display {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
}

.font-mono-tech {
  font-family: 'JetBrains Mono', monospace;
}

/* ============================================================================
   BACKGROUNDS TECNOLÓGICOS E GRIDS GEOMÉTRICOS
   ============================================================================ */

.bg-tech-grid {
  background-size: 44px 44px;
  background-image:
    linear-gradient(to right, rgba(247, 247, 247, 0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 247, 247, 0.028) 1px, transparent 1px);
}

.bg-radial-red-subtle {
  background: radial-gradient(circle at 50% 0%, rgba(241, 38, 38, 0.12) 0%, rgba(8, 8, 8, 0) 68%);
}

.bg-radial-gold-subtle {
  background: radial-gradient(circle at 80% 20%, rgba(255, 198, 41, 0.07) 0%, rgba(8, 8, 8, 0) 60%);
}

/* ============================================================================
   HEADER & NAVEGAÇÃO
   ============================================================================ */

.header-scrolled {
  background-color: rgba(8, 8, 8, 0.92) !important;
  border-bottom-color: rgba(241, 38, 38, 0.2) !important;
  box-shadow: 0 12px 32px -12px rgba(0, 0, 0, 0.85);
}

/* ============================================================================
   CARDS SOFISTICADOS E INTERFACES DE DADOS
   ============================================================================ */

.glass-card {
  background: linear-gradient(180deg, rgba(17, 17, 17, 0.88) 0%, rgba(8, 8, 8, 0.92) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.28s ease,
              box-shadow 0.28s ease;
}

.glass-card:hover {
  border-color: rgba(241, 38, 38, 0.32);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px -16px rgba(241, 38, 38, 0.16);
}

.glass-card-static {
  background: linear-gradient(180deg, rgba(17, 17, 17, 0.92) 0%, rgba(8, 8, 8, 0.96) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
}

.card-gold-accent {
  border-color: rgba(255, 198, 41, 0.25);
}

.card-red-accent {
  border-color: rgba(241, 38, 38, 0.35);
  box-shadow: 0 0 36px -12px rgba(241, 38, 38, 0.18);
}

/* ============================================================================
   BOTÕES E CHAMADAS PARA AÇÃO (CTAs)
   ============================================================================ */

.btn-primary {
  background: linear-gradient(135deg, var(--red-primary) 0%, var(--red-highlight) 100%);
  color: var(--white-text);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  box-shadow: 0 6px 22px -4px rgba(241, 38, 38, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -4px rgba(255, 48, 48, 0.6);
  filter: brightness(1.05);
}

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

.btn-secondary {
  background-color: rgba(17, 17, 17, 0.9);
  color: var(--white-text);
  border: 1px solid rgba(247, 247, 247, 0.16);
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  border-color: var(--yellow-gold);
  color: var(--yellow-gold);
  background-color: rgba(255, 198, 41, 0.06);
}

/* ============================================================================
   FORMULÁRIO E CAMPOS ACESSÍVEIS
   ============================================================================ */

.form-input {
  background-color: #0B0B0B;
  border: 1px solid rgba(247, 247, 247, 0.12);
  color: var(--white-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.form-input::placeholder {
  color: #6E6E6E;
}

.form-input:hover {
  border-color: rgba(247, 247, 247, 0.24);
}

.form-input:focus {
  outline: none;
  background-color: #111111;
  border-color: var(--red-primary);
  box-shadow: 0 0 0 3px rgba(241, 38, 38, 0.2);
}

/* ============================================================================
   ANIMAÇÕES DE ENTRADA E INDICADORES DE PERFORMANCE
   ============================================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }

.pulse-dot-red {
  width: 8px;
  height: 8px;
  background-color: var(--red-highlight);
  border-radius: 9999px;
  box-shadow: 0 0 0 0 rgba(255, 48, 48, 0.7);
  animation: pulseRed 2.2s infinite;
}

.pulse-dot-gold {
  width: 8px;
  height: 8px;
  background-color: var(--yellow-gold);
  border-radius: 9999px;
  box-shadow: 0 0 0 0 rgba(255, 198, 41, 0.7);
  animation: pulseGold 2.2s infinite;
}

@keyframes pulseRed {
  0% { box-shadow: 0 0 0 0 rgba(255, 48, 48, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(255, 48, 48, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 48, 48, 0); }
}

@keyframes pulseGold {
  0% { box-shadow: 0 0 0 0 rgba(255, 198, 41, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(255, 198, 41, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 198, 41, 0); }
}

/* ============================================================================
   ACESSIBILIDADE E PREFERS-REDUCED-MOTION
   ============================================================================ */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--yellow-gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .fade-up {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .glass-card,
  .btn-primary,
  .btn-secondary,
  .pulse-dot-red,
  .pulse-dot-gold {
    transition: none !important;
    animation: none !important;
  }
}