/* ==========================================================================
   LITORAL SUL PRÉ-MOLDADOS - DESIGN SYSTEM CSS (PHP / HTML5 VERSION)
   Design System Escuro Premium & Industrial
   ========================================================================== */

/* 1. VARIÁVEIS DE CORES E DESIGN SYSTEM */
:root {
  --color-bg-dark: #0D0D0D;
  --color-bg-surface: #1A1A1A;
  --color-card-bg: #141414;
  --color-card-hover: #222222;
  
  --color-amber-500: #FF9900;
  --color-amber-400: #FFAD33;
  --color-red-litoral: #CD1515;
  
  --color-border-dark: #2A2A2A;
  --color-border-subtle: rgba(255, 255, 255, 0.1);
  
  --color-text-white: #FFFFFF;
  --color-text-body: #D1D1D1;
  --color-text-silver: #A3A3A3;
  --color-text-dark: #0D0D0D;

  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
}

/* 2. RESET E NORMALIZE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-body);
  background-color: var(--color-bg-dark);
  color: var(--color-text-body);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg-dark);
  color: var(--color-text-body);
  overflow-x: hidden;
}

/* 3. TIPOGRAFIA & ACESSIBILIDADE WCAG 2.2 AA */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-white);
  font-weight: 800;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

p {
  color: var(--color-text-body);
  font-size: 1rem;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Anéis de Foco Acessíveis para Teclado */
:focus-visible {
  outline: none !important;
  box-shadow: 0 0 0 2px var(--color-amber-500) !important;
  border-radius: 4px;
}

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

.focus\:not-sr-only:focus {
  position: fixed;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* 4. BOTÕES E COMPONENTES B2B */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-amber-500);
  color: var(--color-text-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(255, 153, 0, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-amber-400);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 153, 0, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: transparent;
  color: var(--color-text-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-border-subtle);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  border-color: var(--color-amber-500);
  color: var(--color-amber-500);
  background-color: rgba(255, 153, 0, 0.05);
}

.btn-red {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-red-litoral);
  color: var(--color-text-white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-red:hover {
  background-color: #b01010;
  transform: translateY(-2px);
}

/* Labels e Badges */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-amber-500);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-amber-500);
  border-radius: 2px;
}

/* 5. MODAL SYSTEM */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border-subtle);
  border-radius: 1rem;
  max-width: 32rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-backdrop.open .modal-content {
  transform: scale(1);
}

/* 6. CARROSSEL E GALERIA ANIMAÇÕES */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.4s ease forwards;
}

/* 7. FORMULÁRIOS B2B */
input, select, textarea {
  width: 100%;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-dark);
  color: var(--color-text-white);
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-amber-500);
  outline: none;
}

input::placeholder, textarea::placeholder {
  color: var(--color-text-silver);
}

/* 8. CONTAINERS E UTILS RESPONSIVOS */
.container-custom {
  max-width: 80rem; /* 1280px */
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container-custom {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-custom {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}