/* ============================================================
   main.css — Instituto Salutem · Psicologia Plural
   Variáveis CSS, Reset, Tipografia, Grid, Utilitários
   ============================================================ */

/*
  Fontes: Lora (títulos serifados, credibilidade) + Montserrat (corpo, leitura limpa)
  Importadas via HTML <link> no head de cada página
*/

/* ── Variáveis CSS Globais ─────────────────────────────────── */
:root {
  /* Marca */
  --color-brand:        #1B3A6B;
  --color-brand-mid:    #2E5BA8;
  --color-brand-light:  #EEF3FB;

  /* Apoio */
  --color-warm:         #C9B99A;
  --color-accent:       #E8D5C4;
  --color-bg:           #FAF8F5;
  --color-bg-alt:       #F0EBE3;

  /* Texto — conforto visual: evitar preto puro, usar tons suaves */
  --color-text:         #082c4d;   /* azul-escuro da logo — títulos */
  --color-text-body:    #374151;   /* cinza-escuro suave — parágrafos */
  --color-text-light:   #6b7280;   /* cinza médio — legendas, captions */
  --color-white:        #FFFFFF;

  /* CTAs */
  --color-cta:          #1B3A6B;
  --color-cta-hover:    #2E5BA8;

  /* Tipografia — Lora (serifada, credibilidade) + Montserrat (corpo, leitura limpa) */
  --font-title:  'Lora', Georgia, serif;
  --font-body:   'Montserrat', system-ui, sans-serif;

  /* Tamanhos de fonte — escala 1.25x */
  --text-xs:   0.8rem;    /* 12.8px */
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-md:   1.25rem;   /* 20px */
  --text-lg:   1.5625rem; /* 25px */
  --text-xl:   1.953rem;  /* 31px */
  --text-2xl:  2.441rem;  /* 39px */
  --text-3xl:  3.052rem;  /* 49px */

  /* Espaçamento */
  --section-padding: 96px 0;
  --container-max:   1200px;
  --container-px:    24px;

  /* Bordas */
  --radius-card:     16px;
  --radius-btn:      50px;
  --radius-sm:       8px;
  --radius-md:       12px;

  /* Sombras */
  --shadow-card:  0 4px 24px rgba(0, 0, 0, 0.07);
  --shadow-hover: 0 8px 40px rgba(27, 58, 107, 0.12);
  --shadow-nav:   0 2px 20px rgba(0, 0, 0, 0.08);

  /* Transições */
  --transition-fast:   0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow:   0.5s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-brand-mid); }

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  line-height: 1.2;
  color: var(--color-text);
  font-weight: 700;
}

p {
  margin-bottom: 1em;
  line-height: 1.75;
}
p:last-child { margin-bottom: 0; }

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-body);
  font-size: var(--text-base);
}

/* ── Tipografia ────────────────────────────────────────────── */
.display-title {
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 5vw, var(--text-3xl));
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.5vw, var(--text-2xl));
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 300;
  color: var(--color-text-light);
  line-height: 1.6;
  max-width: 600px;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-brand-mid);
  display: block;
  margin-bottom: 12px;
}

/* ── Container e Grid ──────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.section {
  padding: var(--section-padding);
}

.section-header {
  margin-bottom: 56px;
}

.section-header.centered {
  text-align: center;
}

.section-header.centered .section-subtitle {
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* ── Utilitários ───────────────────────────────────────────── */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

.text-brand   { color: var(--color-brand); }
.text-light   { color: var(--color-text-light); }
.text-white   { color: var(--color-white); }
.text-warm    { color: var(--color-warm); }

.bg-brand       { background-color: var(--color-brand); }
.bg-brand-light { background-color: var(--color-brand-light); }
.bg-white       { background-color: var(--color-white); }
.bg-alt         { background-color: var(--color-bg-alt); }
.bg-warm        { background-color: var(--color-accent); }

.flex           { display: flex; }
.flex-center    { display: flex; align-items: center; justify-content: center; }
.flex-between   { display: flex; align-items: center; justify-content: space-between; }
.flex-column    { flex-direction: column; }
.gap-8          { gap: 8px; }
.gap-16         { gap: 16px; }
.gap-24         { gap: 24px; }
.gap-32         { gap: 32px; }

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

.w-full  { width: 100%; }
.hidden  { display: none !important; }
.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;
}

.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-brand), var(--color-warm));
  border-radius: 2px;
  margin: 20px 0 32px;
}

.divider.centered { margin: 20px auto 32px; }

.section-sep {
  border: none;
  border-top: 1px solid rgba(27, 58, 107, 0.08);
  margin: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-brand {
  background: var(--color-brand-light);
  color: var(--color-brand);
}

.badge-warm {
  background: var(--color-accent);
  color: var(--color-text);
}

/* ── Responsividade ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --container-px: 20px;
    --section-padding: 64px 0;
  }

  .grid-2, .grid-3, .grid-4, .grid-5 {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  :root {
    --container-px: 16px;
    --section-padding: 48px 0;
  }
}

/* ── Reduced Motion ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  canvas#birds-canvas { display: none !important; }
}