/* ============================================================
   CHAMA IA — global.css
   Variáveis, reset, tipografia base
   ============================================================ */

/* Fonte carregada via <link preload> no HTML — não usar @import aqui */

/* ── VARIÁVEIS ── */
:root {
  --navy:        #0D2244;
  --navy-deep:   #08162D;
  --blue:        #1A4A8A;
  --blue-mid:    #2563B0;
  --cyan:        #22C5E3;
  --cyan-light:  #7DDFF0;
  --cyan-pale:   #E0F7FB;
  --white:       #FFFFFF;
  --off-white:   #F4F8FC;
  --gray-50:     #F8FAFD;
  --gray-100:    #EEF2F8;
  --gray-200:    #D8E2F0;
  --gray-300:    #B8C6D9;
  --gray-500:    #6B82A0;
  --gray-700:    #374B65;
  --text-dark:   #0A1929;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:  0 2px 8px rgba(13,34,68,0.06);
  --shadow-md:  0 8px 24px rgba(13,34,68,0.10);
  --shadow-lg:  0 16px 48px rgba(13,34,68,0.14);
  --shadow-cyan: 0 8px 24px rgba(34,197,227,0.25);

  --transition: 0.22s ease;
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol { list-style: none; }

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

/* ── TIPOGRAFIA ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  color: var(--navy);
}

h1 { font-size: clamp(40px, 5vw, 68px); }
h2 { font-size: clamp(30px, 4vw, 52px); }
h3 { font-size: clamp(20px, 2.5vw, 28px); }
h4 { font-size: 18px; font-weight: 700; }
h5 { font-size: 15px; font-weight: 700; }

p { line-height: 1.75; color: var(--gray-500); }

em { font-style: normal; color: var(--blue-mid); }

/* ── LAYOUT ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 5vw;
}

section {
  padding: 96px 5vw;
}

/* ── UTILITÁRIOS ── */
.section-tag {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: 14px;
}

.section-tag.light { color: var(--cyan-light); }

.text-cyan  { color: var(--cyan); }
.text-white { color: var(--white); }
.text-muted { color: var(--gray-500); }
.text-navy  { color: var(--navy); }

.bg-navy    { background: var(--navy); }
.bg-deep    { background: var(--navy-deep); }
.bg-offwhite { background: var(--off-white); }
.bg-white   { background: var(--white); }

/* ── BOTÕES ── */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
  border: none;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan);
  color: var(--navy);
}
.btn-primary:hover {
  background: var(--cyan-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-cyan);
  color: var(--navy);
}

.btn-ghost {
  background: transparent;
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.22);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
  background: rgba(255,255,255,0.07);
}

.btn-outline-cyan {
  background: transparent;
  color: var(--cyan);
  border: 1.5px solid rgba(34,197,227,0.4);
}
.btn-outline-cyan:hover {
  border-color: var(--cyan);
  background: rgba(34,197,227,0.07);
  color: var(--cyan);
}

.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--gray-200);
}
.btn-outline-navy:hover {
  border-color: var(--blue-mid);
  color: var(--blue-mid);
  background: rgba(37,99,176,0.04);
}

.btn-lg {
  padding: 16px 38px;
  font-size: 16px;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 13px;
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--off-white); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }