/* ============================================================
   INTEGRASIS — Design System Base (Playbook)
   "Luxo sistémico": disciplina de motion + linguagem calma/editorial.
   Importe este arquivo em TODA página do site (qualquer subpasta).
   Nunca crie tokens avulsos fora daqui — ver design/DESIGN.md.
   ============================================================ */

/* --- 1. TOKENS (fonte única — espelha design/DESIGN.md) --- */
:root{
  /* Cores */
  --marrom:#2E3B2E;
  --salvia:#7A8B6F;
  --salvia-deep:#5C6B52;
  --terracota:#C67B5C;
  --terracota-deep:#A85F43;
  --creme:#F5F0E8;
  --creme-deep:#E9E2D5;
  --ink:#3A3A38;
  --ink-muted:#6B6B66;
  --surface:#FFFFFF;
  --focus:oklch(0.55 0.08 240);

  /* Tipografia (famílias) */
  --font-display:'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body:'Lora', Georgia, 'Times New Roman', serif; /* corpo = serif literário (consenso frota) */
  --font-ui:'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Raio */
  --r-sm:6px; --r-md:10px; --r-lg:16px; --r-pill:999px;

  /* Espaçamento */
  --sp-xs:4px; --sp-sm:8px; --sp-md:16px; --sp-lg:24px;
  --sp-xl:40px; --sp-xxl:64px; --sp-section:96px;

  /* Contêiner e layout */
  --container:1140px;
  --pad-x:24px;

  /* Movimento (posture) */
  --ease-out:cubic-bezier(0.22,1,0.36,1);
  --dur-fast:300ms; --dur-base:500ms; --dur-slow:800ms;

  /* Sombras (raras e suaves) */
  --shadow-card:0 8px 30px rgba(46,59,46,0.08);
}

/* --- 2. RESET & BASE --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--creme);
  line-height:1.65;
  font-size:1.125rem; /* corpo 18px — conforto leitura longa (consenso frota) */
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
a{color:var(--terracota-deep);text-decoration:none;transition:opacity .25s var(--ease-out)}
a:hover{opacity:.82}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

/* --- 3. TIPOGRAFIA (hierarquia) --- */
h1,.h1{font-family:var(--font-display);font-size:3rem;font-weight:600;line-height:1.05;letter-spacing:-.015em;color:var(--marrom);text-wrap:balance}
h2,.h2{font-family:var(--font-display);font-size:2.25rem;font-weight:600;line-height:1.1;letter-spacing:-.01em;color:var(--marrom);text-wrap:balance}
h3,.h3{font-family:var(--font-display);font-size:1.6rem;font-weight:600;line-height:1.15;color:var(--marrom);text-wrap:balance}
.eyebrow{
  font-family:var(--font-ui);font-size:.8rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--terracota-deep);
  margin-bottom:12px;
}
.body-lg{font-family:var(--font-body);font-size:1.25rem;line-height:1.65;font-weight:400}
.caption{font-family:var(--font-ui);font-size:.85rem;color:var(--ink-muted);letter-spacing:.01em}

/* --- 4. LAYOUT --- */
.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad-x)}
.section{padding:var(--sp-section) var(--pad-x)}
.section-alt{background:var(--surface)}
.grid{display:grid;gap:var(--sp-lg)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* --- 5. COMPONENTES --- */
/* Botões */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--font-ui);font-size:.95rem;font-weight:500;letter-spacing:.02em;
  padding:14px 28px;border-radius:var(--r-pill);line-height:1;
  transition:background-color var(--dur-fast) var(--ease-out),
             color var(--dur-fast) var(--ease-out);
  min-height:44px;text-decoration:none;
}
.btn-primary{background:var(--marrom);color:var(--surface)}
.btn-primary:hover{background:var(--salvia-deep);color:var(--surface);opacity:1}
.btn-secondary{background:transparent;color:var(--marrom);box-shadow:inset 0 0 0 1.5px var(--marrom)}
.btn-secondary:hover{background:var(--creme-deep);opacity:1}
.btn-terracota{background:var(--terracota);color:var(--surface)}
.btn-terracota:hover{background:var(--terracota-deep);color:var(--surface);opacity:1}

/* Cards */
.card{
  background:var(--surface);border-radius:var(--r-lg);padding:32px;
  box-shadow:var(--shadow-card);transition:transform .4s var(--ease-out),
             background-color .3s var(--ease-out);
}
.card:hover{background:var(--creme);transform:translateY(-4px)}
.card h3{margin-bottom:10px}

/* Navegação (glass flutuante) */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,240,232,.82);
  backdrop-filter:saturate(150%) blur(12px);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--creme-deep);
}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.logo img{width:40px;height:40px;border-radius:50%;object-fit:cover;flex-shrink:0}
.logo span{font-family:var(--font-display);font-weight:600;font-size:1.3rem;color:var(--marrom);line-height:1}
.nav{display:flex;align-items:center;gap:var(--sp-lg)}
.nav a{font-family:var(--font-ui);font-weight:500;color:var(--marrom);font-size:.95rem}
.nav a:hover{color:var(--terracota-deep);opacity:1}

/* --- 6. MOVIMENTO (scroll-trigger — NUNCA scroll-jacking) --- */
/* Elementos entram ao alcançar o viewport; usuário controla o ritmo. */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal.in-view{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}

/* Acessibilidade: reduz todo motion se preferido reduzido */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* --- 7. RESPONSIVIDADE (breakpoints) --- */
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  h1{font-size:2.4rem}
  h2{font-size:1.9rem}
  .section{padding:64px var(--pad-x)}
}
@media (max-width:620px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  h1{font-size:2rem}
  .section{padding:48px var(--pad-x)}
  .nav{flex-wrap:wrap;gap:14px}
  .btn{width:100%}
}
@media (max-width:360px){
  h1{font-size:1.75rem}
  .container{padding:0 18px}
}

/* --- 8. FOOTER INTELIGENTE (colunas) --- */
.site-footer{padding:56px var(--pad-x) 32px;text-align:left}
.footer-grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{font-size:.9rem;color:rgba(245,240,232,.72);line-height:1.6;margin-top:12px;max-width:280px}
.footer-col h4{font-family:var(--font-ui);font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--terracota);margin-bottom:16px}
.footer-col a{display:block;font-family:var(--font-body);font-size:.95rem;color:rgba(245,240,232,.85);margin-bottom:10px;text-decoration:none}
.footer-col a:hover{color:#fff;opacity:1}
.footer-bottom{max-width:var(--container);margin:40px auto 0;padding-top:24px;border-top:1px solid rgba(245,240,232,.12);font-family:var(--font-ui);font-size:.82rem;color:rgba(245,240,232,.6);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-bottom a{color:rgba(245,240,232,.8)}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:620px){
  .site-footer{padding:40px var(--pad-x) 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px 20px}
  .footer-brand{grid-column:1/-1}
  .footer-brand p{display:none} /* esconde a descrição longa no mobile p/ encurtar */
  .footer-col h4{margin-bottom:10px}
  .footer-col a{margin-bottom:8px;font-size:.9rem}
  .footer-bottom{margin-top:24px;padding-top:16px;flex-direction:column;gap:6px;font-size:.75rem}
}