/* =========================================================
   GLOBAL CSS — Instituto Jovens Brilhantes
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,400;0,600;0,700;0,800;1,400&family=Poppins:wght@300;400;500;600;700&display=swap');

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

/* --- Design Tokens --- */
:root {
  /* Paleta */
  --color-primary:      #019ca0;
  --color-primary-dark: #017a7d;
  --color-primary-light:#e6f7f7;
  --color-secondary:    #fbb03b;
  --color-secondary-dk: #e09a28;
  --color-accent:       #e6007e;
  --color-dark:         #0a2540;
  --color-dark-mid:     #143352;
  --color-bg:           #f5f8f8;
  --color-bg-alt:       #ffffff;
  --color-text:         #1a2332;
  --color-text-muted:   #5a6a7a;
  --color-white:        #ffffff;
  --color-border:       #dde8e8;
  --color-gray-light:   #eaf0f0;

  /* Tipografia */
  --font-display: 'Poppins', system-ui, -apple-system, sans-serif;
  --font-body:    'Nunito', system-ui, -apple-system, sans-serif;

  /* Escala tipográfica (fluid) */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;

  /* Espaçamento */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Aliases semânticos */
  --space-xs:  var(--space-2);
  --space-sm:  var(--space-4);
  --space-md:  var(--space-6);
  --space-lg:  var(--space-10);
  --space-xl:  var(--space-16);
  --space-2xl: var(--space-24);

  /* Bordas */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  /* Sombras */
  --shadow-xs: 0 1px 3px rgba(1,156,160,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-sm: 0 2px 8px rgba(1,156,160,.08), 0 1px 4px rgba(0,0,0,.04);
  --shadow-md: 0 4px 20px rgba(1,156,160,.12), 0 2px 8px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 40px rgba(1,156,160,.15), 0 4px 16px rgba(0,0,0,.08);
  --shadow-xl: 0 16px 64px rgba(1,156,160,.18), 0 8px 24px rgba(0,0,0,.10);

  /* Transições */
  --ease:      cubic-bezier(.4,0,.2,1);
  --duration:  220ms;
  --transition: var(--duration) var(--ease);
}

/* --- Base --- */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Tipografia */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-dark);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw,  3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }
h4 { font-size: var(--text-xl); font-weight: 600; }
h5 { font-size: var(--text-lg); font-weight: 500; }

p {
  margin-bottom: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.8;
}

p:last-child { margin-bottom: 0; }

h2 { margin-bottom: var(--space-4); }
h3 { margin-bottom: var(--space-3); }

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

a:hover { color: var(--color-primary-dark); }

ul { list-style: none; }

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

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow { max-width: 800px; }
.container--wide   { max-width: 1400px; }

.section {
  padding: var(--space-2xl) 0;
}

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

/* Fundos de seção */
.section--white { background-color: var(--color-white); }
.section--bg    { background-color: var(--color-bg); }

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

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark p {
  color: var(--color-white);
}

.section--dark p { color: rgba(255,255,255,.75); }

.section--teal {
  background-color: var(--color-primary);
}

.section--teal h1,
.section--teal h2,
.section--teal h3,
.section--teal p { color: var(--color-white); }
.section--teal p { color: rgba(255,255,255,.82); }

/* --- Label de seção --- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-label::before {
  content: none;
}

.section--dark .section-label,
.section--teal .section-label {
  color: var(--color-secondary);
}

.section--dark .section-label::before,
.section--teal .section-label::before {
  background-color: var(--color-secondary);
}

/* --- Utilitários --- */
.text-center { text-align: center; }
.text-white  { color: var(--color-white) !important; }
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-muted  { color: var(--color-text-muted) !important; }

/* --- Botões --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition), letter-spacing 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(1,156,160,.32);
  letter-spacing: 0.01em;
}

/* Variante âmbar */
.btn-primary--amber {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-dark);
}

.btn-primary--amber:hover {
  background-color: var(--color-secondary-dk);
  border-color: var(--color-secondary-dk);
  color: var(--color-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(251,176,59,.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: transparent;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition), letter-spacing 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(1,156,160,.22);
}

.btn-secondary--white {
  color: var(--color-white);
  border-color: rgba(255,255,255,.6);
}

.btn-secondary--white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: transparent;
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-md);
  border: 2px solid rgba(255,255,255,.6);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition), letter-spacing 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: #25D366;
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition), letter-spacing 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-whatsapp:hover {
  background-color: #1dbb58;
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,211,102,.4);
}

/* Disabled button — no animation */
.btn-soon {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--color-gray-light);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: not-allowed;
  text-decoration: none;
  white-space: nowrap;
  pointer-events: none;
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge--soon  { background-color: var(--color-gray-light); color: var(--color-text-muted); }
.badge--avail { background-color: #d1fae5; color: #065f46; }
.badge--amber { background-color: rgba(251,176,59,.15); color: #a0680a; border: 1px solid rgba(251,176,59,.4); }
.badge--accent { background-color: rgba(230,0,126,.1); color: var(--color-accent); border: 1px solid rgba(230,0,126,.25); }

/* --- Fade-in --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger para filhos */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 80ms; }
.stagger > *:nth-child(3) { transition-delay: 160ms; }
.stagger > *:nth-child(4) { transition-delay: 240ms; }
.stagger > *:nth-child(5) { transition-delay: 320ms; }

/* --- WhatsApp flutuante --- */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  background-color: #25D366;
  color: var(--color-white);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  color: var(--color-white);
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 8px 32px rgba(37,211,102,.5);
}

.whatsapp-float svg { width: 28px; height: 28px; fill: var(--color-white); }

/* --- Responsivo --- */
@media (max-width: 768px) {
  :root {
    --space-xl:  var(--space-12);
    --space-2xl: var(--space-20);
  }

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