/* ============================================================
   INOVA RESPI — Global Styles
   Fonte: Barlow (Google Fonts)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,300;1,400;1,600&display=swap');

/* ── CSS Variables ── */
:root {
  /* Brand */
  --orange:        #E8621A;
  --orange-light:  #F4894A;
  --orange-pale:   #FDE8D8;
  --orange-dark:   #B84A0F;

  /* Neutrals */
  --black:         #0A0A0A;
  --gray-900:      #111111;
  --gray-800:      #1C1C1C;
  --gray-700:      #2E2E2E;
  --gray-600:      #444444;
  --gray-400:      #888888;
  --gray-200:      #D4D4D4;
  --gray-100:      #F2F2F2;
  --white:         #FFFFFF;

  /* Theme (light default) */
  --bg:            #F8F6F3;
  --bg-card:       #FFFFFF;
  --bg-subtle:     #F0EDE8;
  --text:          #1A1A1A;
  --text-muted:    #666666;
  --border:        #E4E0DA;
  --shadow:        rgba(0,0,0,0.08);

  /* Layout */
  --max-w:         1200px;
  --nav-h:         72px;
  --radius:        12px;
  --radius-sm:     6px;
  --radius-lg:     20px;

  /* Transitions */
  --ease:          cubic-bezier(0.22, 1, 0.36, 1);
  --dur:           0.35s;
}

/* Dark theme */
[data-theme="dark"] {
  --bg:            #0D0D0D;
  --bg-card:       #161616;
  --bg-subtle:     #1A1A1A;
  --text:          #F0EDE8;
  --text-muted:    #888888;
  --border:        #2A2A2A;
  --shadow:        rgba(0,0,0,0.4);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Barlow', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: 'Barlow', sans-serif; cursor: pointer; border: none; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section--sm {
  padding: 64px 0;
}

/* ── Typography ── */
.display {
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.heading-1 {
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
}
.heading-2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
}
.heading-3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}
.body-lg { font-size: 1.1rem; line-height: 1.7; }
.body { font-size: 1rem; line-height: 1.65; }
.body-sm { font-size: 0.875rem; line-height: 1.6; }
.label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
}
.text-muted { color: var(--text-muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-family: 'Barlow', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--dur) var(--ease);
  cursor: pointer;
}
.btn-primary {
  background: var(--orange);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,98,26,0.35);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--orange);
  color: var(--orange);
}
.btn-outline:hover {
  background: var(--orange);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  padding: 13px 20px;
}
.btn-ghost:hover { color: var(--orange); }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-sm { padding: 8px 18px; font-size: 0.82rem; }

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--dur) var(--ease);
}
.card:hover {
  border-color: var(--orange-light);
  box-shadow: 0 12px 40px var(--shadow);
  transform: translateY(-4px);
}

/* ── Badge / Tag ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--orange-pale);
  color: var(--orange-dark);
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
}
[data-theme="dark"] .badge {
  background: rgba(232,98,26,0.15);
  color: var(--orange-light);
}

/* ── Section label block ── */
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.section-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--orange);
  border-radius: 2px;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Theme toggle ── */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}
.theme-toggle:hover {
  background: var(--orange-pale);
  border-color: var(--orange);
}
[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline; }

/* ── Fade-in animation ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Grid helpers ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .container { padding: 0 16px; }
  .btn-lg { padding: 14px 28px; }
}