/*
  Ita Med - Styles
  Arquitetura: mobile-first, comentada por seções, com tokens e utilitários
  Paleta: Primária (branco), Secundária (jade), Neutros e Acessibilidade
*/

/* ==========================
   1) Tokens & Reset Básico
   ========================== */
:root {
  /* Cores base */
  --color-white: #ffffff;
  --color-black: #0a0a0a;
  --color-text: #1f2937; /* cinza-ardósia */
  --color-muted: #6b7280; /* cinza médio */
  /* Paleta da marca (diretriz) */
  --brand-strong: rgb(61,71,65);   /* rgba(61,71,65,255) */
  --brand-medium: rgb(161,167,150);/* rgba(161,167,150,255) */
  --brand-light: rgb(215,216,209); /* rgba(215,216,209,255) */

  /* Escalas derivadas (mantendo naming jade já usado no layout) */
  --color-jade-50: var(--brand-light);
  --color-jade-100: var(--brand-light);
  --color-jade-300: var(--brand-medium);
  --color-jade-500: var(--brand-strong);
  --color-jade-700: #2f3228; /* contraste para hovers */
  /* Acentos e estados */
  --color-primary: var(--brand-light);   /* Fundo principal do site */
  --color-secondary: var(--brand-strong);/* Botões primários, destaques */
  --color-focus: #1d4ed8; /* azul para foco acessível */
  --color-border: var(--brand-medium);   /* Bordas e divisórias suaves */
  --shadow-soft: 0 6px 24px rgba(0, 0, 0, 0.08);

  /* Tipografia */
  --font-sans: "Core Sans N", Montserrat, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --font-accent: Montserrat, "Core Sans N", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --font-size-0: 0.875rem;   /* 14px */
  --font-size-1: 1rem;       /* 16px */
  --font-size-2: 1.125rem;   /* 18px */
  --font-size-3: 1.375rem;   /* 22px */
  --font-size-4: 1.75rem;    /* 28px */
  --font-size-5: 2.25rem;    /* 36px */
  --font-size-6: 3rem;       /* 48px */

  /* Layout */
  --container: 1120px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --spacing-1: 0.5rem;
  --spacing-2: 0.75rem;
  --spacing-3: 1rem;
  --spacing-4: 1.5rem;
  --spacing-5: 2rem;
  --spacing-6: 3rem;
}

/* Reset mínimo e base tipográfica */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-1);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-primary);
  padding-top: var(--header-height);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { margin: 0 0 var(--spacing-3); line-height: 1.2; }
p { margin: 0 0 var(--spacing-3); }

/* Acessibilidade */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-sm);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Containers utilitários */
.container {
  width: 100%;
  max-width: var(--container);
  padding: 0 var(--spacing-3);
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.06s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
  text-align: center;
  min-height: 44px; /* Altura mínima para touch targets acessíveis */
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover { background: var(--color-jade-700); color: var(--color-white); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { background: rgba(0,0,0,0.04); }

.link { color: var(--color-secondary); font-weight: 600; }
.link:hover { text-decoration: underline; }

/* ==========================
   2) Cabeçalho / Navegação
   ========================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0; /* top:0; left/right:0 */
  height: var(--header-height);
  z-index: 50;
  background: transparent;
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  height: 100%;
  background: var(--brand-strong);
  color: #fff;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand-name { font-weight: 800; font-size: var(--font-size-2); color: #fff; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 32px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-sm);
}
.nav-toggle-bar {
  width: 20px;
  height: 2px;
  background: #fff;
}

.nav { display: none; }
.nav.open { display: block; }
.nav ul { display: grid; gap: 0.5rem; }
.nav a, .nav button.submenu-toggle {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: #fff;
}
.nav a:hover, .nav button.submenu-toggle:hover { background: rgba(255,255,255,0.08); }

.has-submenu { position: relative; }
.submenu-toggle { background: transparent; border: none; cursor: pointer; }
.submenu { display: none; position: static; padding-left: 0.25rem; }
.submenu.open { display: grid; gap: 0.25rem; }

/* >= 960px: navegação desktop */
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .nav { display: block; }
  .nav ul { display: flex; align-items: center; gap: 0.25rem; }
  .has-submenu:hover .submenu { display: block; position: absolute; top: 120%; left: 0; background: var(--brand-strong); color: #fff; border: 1px solid rgba(255,255,255,0.25); border-radius: var(--radius-md); box-shadow: var(--shadow-soft); }
}

/* ==========================
   3) Hero com referência à Jade
   ========================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-6) 0 var(--spacing-5);
}
.hero-text {
  max-width: 720px;
}
.hero h1 { font-size: var(--font-size-5); }
.hero p { font-size: var(--font-size-2); color: var(--color-muted); }
.hero-actions { display: flex; gap: 0.75rem; margin-top: var(--spacing-3); }

.jade-shape {
  position: absolute;
  right: -80px;
  top: -40px;
  width: 420px;
  height: 420px;
  background-image: url('../assets/icons/jade-stone.svg');
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  opacity: 0.2;
  pointer-events: none;
}

/* Regras específicas para dispositivos móveis */
@media (max-width: 767px) {
  .btn {
    width: 100%;
    max-width: 280px;
    padding: 0.875rem 1.25rem;
    font-size: var(--font-size-1);
    line-height: 1.4;
  }
  
  .btn-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
    width: 100%;
  }
  
  .btn-group .btn {
    width: 100%;
    max-width: 320px;
  }
  
  /* Botões em cards e contextos específicos */
  .service-block .btn,
  .post-card .btn,
  .local-card .btn {
    width: auto;
    min-width: 140px;
    max-width: 200px;
    padding: 0.625rem 1rem;
    font-size: var(--font-size-0);
  }
  
  /* Botões de formulário */
  .form-row .btn {
    width: 100%;
    max-width: none;
    margin-top: 0.5rem;
  }
  
  /* Botões de navegação */
  .nav .btn {
    width: auto;
    min-width: auto;
    max-width: none;
    padding: 0.5rem 0.75rem;
  }
}

@media (min-width: 768px) {
  .hero { padding: calc(var(--spacing-6) + 1rem) 0 var(--spacing-6); }
  .hero h1 { font-size: var(--font-size-6); }
  .jade-shape { right: -120px; top: -60px; width: 520px; height: 520px; opacity: 0.22; }
  
  .btn-group {
    display: flex;
    gap: 1rem;
    align-items: center;
  }
}

/* ==========================
   4) Seções base
   ========================== */
.section { padding: var(--spacing-6) 0; }
.section[id] { scroll-margin-top: 88px; }
.section-header { margin-bottom: var(--spacing-4); }
.section-header p { color: var(--color-muted); }

/* Quem somos */
.who-grid { display: grid; gap: var(--spacing-3); }
.who-card {
  padding: var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
}

@media (min-width: 768px) {
  .who-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Serviços */
.services { background: var(--brand-light); }
.service-block { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-4); box-shadow: var(--shadow-soft); }
.service-block + .service-block { margin-top: var(--spacing-3); }
.service-header h3 { margin: 0 0 var(--spacing-2); }
.pill-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.pill-list li { background: var(--color-jade-100); color: var(--pantone-camping-green); padding: 0.35rem 0.75rem; border-radius: 999px; font-weight: 600; }
.service-note { color: var(--color-muted); margin-top: var(--spacing-2); }

/* Itafácil */
.itafacil-grid { display: grid; gap: var(--spacing-4); align-items: center; }
.itafacil-text .check-list { margin: var(--spacing-3) 0; }
.check-list li { display: flex; gap: 0.5rem; }
.check-list li::before { content: "✓"; color: var(--color-secondary); font-weight: 800; }
.itafacil-card { justify-self: center; }
.itafacil { background: linear-gradient(180deg, var(--color-white) 0%, var(--brand-light) 100%); }

@media (min-width: 960px) {
  .itafacil-grid { grid-template-columns: 1.2fr 1fr; }
}

/* Unidades */
.locais-grid { display: grid; gap: var(--spacing-3); }
.local-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-4); box-shadow: var(--shadow-soft); }

@media (min-width: 768px) {
  .locais-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Blog */
.blog-grid { display: grid; gap: var(--spacing-3); }
.post-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-4); box-shadow: var(--shadow-soft); }
.post-meta { color: var(--brand-strong); font-size: var(--font-size-0); }

@media (min-width: 768px) {
  .blog-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Trabalhe conosco */
.jobs-form { max-width: 640px; }
.form-row { display: grid; gap: 0.35rem; margin-bottom: var(--spacing-3); }
.form-row input, .form-row select, .form-row textarea {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-1);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--color-secondary); box-shadow: 0 0 0 4px var(--color-jade-50); }
.field-error { color: #b91c1c; font-size: var(--font-size-0); min-height: 1.2em; }
.form-success { color: #065f46; background: #ecfdf5; border: 1px solid #a7f3d0; padding: var(--spacing-2) var(--spacing-3); border-radius: var(--radius-md); margin-top: var(--spacing-3); }

/* ==========================
   5) Rodapé
   ========================== */
.site-footer { border-top: 1px solid var(--color-border); background: var(--brand-strong); color: var(--color-white); }
.footer-grid { display: grid; gap: var(--spacing-4); padding: var(--spacing-5) 0; }
.footer-desc { color: rgba(255,255,255,0.8); }
.footer-nav ul { display: grid; gap: 0.5rem; }
.social-list { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; row-gap: 0.5rem; }
.partner-card { display: inline-flex; align-items: center; gap: 0.75rem; padding: 0.5rem 0.75rem; border: 1px dashed rgba(255,255,255,0.4); border-radius: var(--radius-md); background: rgba(255,255,255,0.08); }
.partner-title { font-size: var(--font-size-0); color: var(--color-muted); margin: 0; }
.partner-name { font-weight: 700; margin: 0; }
.footer-copy { color: rgba(255,255,255,0.8); margin-top: var(--spacing-3); font-size: var(--font-size-0); }

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; align-items: start; }
  .footer-nav ul { grid-template-columns: repeat(2, auto); column-gap: 1.25rem; }
}

@media (min-width: 960px) {
  .footer-grid { grid-template-columns: 1fr 1fr auto; align-items: start; }
  .footer-nav ul { grid-template-columns: repeat(3, auto); column-gap: 1.5rem; }
}

/* ==========================
   6) Componentes auxiliares
   ========================== */
.back-to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-2px); }

/* Espaçamentos utilitários (opcional) */
.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }