/* ============================================
   LOUREIRO ADVOGADOS - Design System
   Versao: 1.0
   Descricao: Variaveis, reset, tipografia,
   componentes reutilizaveis e utilitarios
   ============================================ */

/* --- CSS Custom Properties (:root) --- */
:root {
  /* Cores - Paleta Azul-Marinho + Dourado */
  --color-navy-deep: #0A1F33;
  --color-navy: #12263B;
  --color-navy-light: #1a3352;
  --color-gold: #B08D57;
  --color-gold-light: #C9A66B;
  --color-gold-hover: #d4b87a;

  /* Cores - Neutros */
  --color-white: #FFFFFF;
  --color-gray-50: #F8F9FA;
  --color-gray-100: #F1F3F5;
  --color-gray-200: #E9ECEF;
  --color-gray-300: #DEE2E6;
  --color-gray-400: #ADB5BD;
  --color-gray-500: #6C757D;
  --color-gray-600: #495057;
  --color-gray-700: #343A40;
  --color-gray-800: #212529;

  /* Cores - Semantico */
  --color-text-primary: #2D3436;
  --color-text-secondary: #636E72;
  --color-text-muted: #9CA3AF;
  --color-success: #155724;
  --color-success-bg: #d4edda;
  --color-success-border: #c3e6cb;
  --color-error: #721c24;
  --color-error-bg: #f8d7da;
  --color-error-border: #f5c6cb;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);

  /* Bordas e Raio */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transicoes */
  --transition-fast: 200ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
  --header-height-scrolled: 70px;

  /* Espacamentos */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;

  /* Tipografia */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.85rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.05rem;
  --font-size-xl: 1.125rem;
  --font-size-2xl: 1.25rem;
  --font-size-3xl: 1.5rem;
  --font-size-4xl: clamp(2rem, 5vw, 3rem);
  --font-size-hero: clamp(2.25rem, 5.5vw, 3.5rem);
}

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-base);
}

ul, ol {
  list-style: none;
}

/* --- Tipografia --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-navy);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.section--navy h2,
.section--navy h3 {
  color: var(--color-white);
}

.section--navy p {
  color: var(--color-gray-300);
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* --- Componente: Labels de Secao --- */
.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  font-weight: 400;
}

.section-subtitle.centered {
  margin-left: auto;
  margin-right: auto;
}

/* --- Componente: Botoes --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  line-height: 1.2;
  gap: var(--space-sm);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(176, 141, 87, 0.3);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-gold-hover) 0%, var(--color-gold) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(176, 141, 87, 0.4);
}

.btn--cta {
  background: linear-gradient(135deg, var(--color-gold) 0%, #9a7a45 100%);
  color: var(--color-white);
  padding: 1.25rem 3rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 18px rgba(176, 141, 87, 0.4);
  text-transform: none;
}

.btn--cta:hover {
  background: linear-gradient(135deg, var(--color-gold-hover) 0%, var(--color-gold) 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(176, 141, 87, 0.55);
}

.btn--outline {
  background: transparent;
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
}

.btn--outline:hover {
  background: var(--color-gold);
  color: var(--color-white);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-navy);
}

.btn--white:hover {
  background: var(--color-gray-100);
}

.btn--navy {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--navy:hover {
  background: var(--color-navy-light);
}

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: 1rem;
}

/* --- Componente: Cards --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-navy-deep), var(--color-navy));
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  color: var(--color-gold);
  font-size: 1.5rem;
}

.card__icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-gold);
  stroke-width: 1.5;
  fill: none;
}

.card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: var(--font-size-base);
  line-height: 1.65;
  margin-bottom: 0;
}

/* --- Componente: Formularios --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-sm);
}

.form-group label .required {
  color: #dc3545;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(176, 141, 87, 0.15);
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.form-message {
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  display: none;
}

.form-message.success {
  display: block;
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.form-message.error {
  display: block;
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
}

/* --- Utilitarios de Texto --- */
.text-center { text-align: center; }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.5px; }
.text-gold { color: var(--color-gold); }
.text-navy { color: var(--color-navy); }

/* --- Animacao: Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive: Mobile First --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: var(--space-2xl) 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .card { padding: var(--space-lg); }
}