/* ===================================================================
   MICHAEL SOUZA ENGENHARIA - DESIGN SYSTEM & ESTILOS ARQUITETÔNICOS
   Construção Civil & Obras de Alto Padrão • Rigor Técnico & Sofisticação
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  /* Cores de Superfície - Off-white Arquitetônico e Ardósia */
  --bg-page: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-dark: #0A0F1D;
  --bg-dark-card: #111827;

  /* Bordas e Divisores */
  --border-subtle: #E2E8F0;
  --border-medium: #CBD5E1;
  --border-dark: rgba(255, 255, 255, 0.1);

  /* Tipografia e Contraste Sólido */
  --text-headline: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  --text-light-muted: #94A3B8;

  /* Acentos de Prestígio (Âmbar / Bronze Nobre com Contraste Seguro WCAG) */
  --gold-primary: #B45309;
  --gold-hover: #92400E;
  --gold-surface: #FEF3C7;
  --gold-border: #FCD34D;
  --gold-text: #78350F;

  /* Efeitos e Raios de Borda */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  /* Sombra com Offset e Desfoque Suave (Sem Halos Coloridos) */
  --shadow-subtle: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 4px 10px -3px rgba(15, 23, 42, 0.03);
  --shadow-elevated: 0 20px 35px -10px rgba(15, 23, 42, 0.1), 0 8px 16px -4px rgba(15, 23, 42, 0.04);
}

/* ===================================================================
   RESET & TIPOGRAFIA COM ESCALA MODULAR ESTRITA (> 1.25x)
   =================================================================== */

html {
  scroll-behavior: smooth;
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-body);
  background-color: var(--bg-page);
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
}

/* Títulos Arquitetônicos em Cinzel com Quebra Segura */
h1, h2, h3, h4, .font-heading {
  font-family: 'Cinzel', serif;
  color: var(--text-headline);
  letter-spacing: -0.01em;
  margin: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Escala Modular Clara e Adaptável ao Mobile (360px a Desktop) */
h1 {
  font-size: clamp(1.75rem, 5.5vw, 3.25rem); /* ~28px no 360px a 52px no desktop */
  line-height: 1.15;
  font-weight: 700;
}

h2 {
  font-size: clamp(1.375rem, 4vw, 2.25rem); /* ~22px no 360px a 36px no desktop */
  line-height: 1.2;
  font-weight: 700;
}

h3 {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem); /* ~18px no 360px a 24px no desktop */
  line-height: 1.3;
  font-weight: 600;
}

h4 {
  font-size: 1.0625rem; /* 17px */
  line-height: 1.4;
  font-weight: 600;
}

p, .text-body {
  font-size: 0.9375rem; /* 15px mobile */
  line-height: 1.65;
  color: var(--text-body);
}

@media (min-width: 640px) {
  p, .text-body {
    font-size: 1rem; /* 16px desktop */
  }
}

.text-small {
  font-size: 0.8125rem; /* 13px mobile */
  line-height: 1.5;
}

@media (min-width: 640px) {
  .text-small {
    font-size: 0.875rem; /* 14px desktop */
  }
}

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

/* ===================================================================
   SURFACES & CONTAINERS ARQUITETÔNICOS
   =================================================================== */

.arch-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

@media (min-width: 640px) {
  .arch-card {
    padding: 1.75rem;
  }
}

.arch-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-elevated);
}

/* Barra de Navegação */
.arch-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

/* Custom Scrollbar Discreta */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* ===================================================================
   CONTROLES DO SIMULADOR
   =================================================================== */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: #E2E8F0;
  height: 6px;
  border-radius: 3px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gold-primary);
  border: 3px solid #FFFFFF;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: background-color 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--gold-hover);
}

/* ===================================================================
   MODAL TÉCNICO DE DETALHES DA OBRA
   =================================================================== */

.modal-backdrop {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

.modal-content {
  transform: translateY(12px);
  transition: transform 0.25s ease;
}

.modal-backdrop.active .modal-content {
  transform: translateY(0);
}

/* ===================================================================
   ACCORDION DE FAQ (SEM LAYOUT THRASH)
   =================================================================== */

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  padding: 1.5rem;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: var(--border-medium);
}

.faq-content {
  display: none;
}

.faq-item.active .faq-content {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Custom Text Selection */
::selection {
  background: #FEF3C7;
  color: #78350F;
}

/* ===================================================================
   ACESSIBILIDADE & FOCO TECLADO (WCAG AAA)
   =================================================================== */

:focus-visible {
  outline: 2px solid var(--gold-primary);
  outline-offset: 2px;
}

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

/* ===================================================================
   MICRO-INTERAÇÕES & ESTADOS ATIVOS
   =================================================================== */

button:active:not(:disabled),
a.btn:active {
  transform: scale(0.985);
}

.portfolio-filter-btn {
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.portfolio-filter-btn:active {
  transform: scale(0.96);
}

.sim-finish-card {
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.sim-finish-card:hover {
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}