/* =============================================
   NexusConcursos — Global CSS
   Cores migradas para OKLCH (perceptualmente suaves)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Nunito:wght@800;900&display=swap');

:root {
  /* ── Roxo principal ── */
  --roxo:          oklch(0.62 0.21 258);   /* era #7c3aed */
  --roxo-light:    oklch(0.67 0.19 258);   /* era #8b5cf6 */
  --roxo-dark:     oklch(0.55 0.22 258);   /* era #6d28d9 */
  --roxo-darker:   oklch(0.42 0.22 270);   /* era #4c1d95 */
  --roxo-bg:       oklch(0.96 0.03 258);   /* era #f5f3ff */
  --roxo-border:   oklch(0.90 0.05 258);   /* era #ddd6fe */

  /* ── Fundo e superfícies ── */
  --fundo:         oklch(0.985 0 0);       /* era #f8f7ff */
  --branco:        oklch(1 0 0);           /* era #ffffff */
  --card:          oklch(1 0 0);           /* era #ffffff */

  /* ── Texto ── */
  --txt:           oklch(0.18 0.01 270);   /* era #0f0a1e */
  --txt2:          oklch(0.50 0.01 270);   /* era #6b7280 */
  --txt3:          oklch(0.65 0.01 270);   /* era #9ca3af */

  /* ── Bordas ── */
  --borda:         oklch(0.92 0.005 270);  /* era #e9e4ff */
  --borda2:        oklch(0.95 0.005 270);  /* era #f0ebff */

  /* ── Status ── */
  --verde:         oklch(0.52 0.17 145);   /* era #16a34a */
  --vermelho:      oklch(0.53 0.22 25);    /* era #dc2626 */
  --amarelo:       oklch(0.60 0.15 80);    /* era #ca8a04 */

  /* ── Sombras ── */
  --shadow-sm:     0 2px 8px  oklch(0.62 0.21 258 / 0.08);
  --shadow-md:     0 8px 28px oklch(0.62 0.21 258 / 0.12);
  --shadow-lg:     0 20px 60px oklch(0.62 0.21 258 / 0.16);

  /* ── Border radius ── */
  --r-sm:   8px;
  --r-md:   12px;
  --r-lg:   16px;
  --r-xl:   24px;
  --r-full: 9999px;

  /* ── Transições ── */
  --t-fast:   0.12s ease;
  --t-normal: 0.2s ease;
  --t-slow:   0.35s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--fundo);
  color: var(--txt);
  font-size: 14px;
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, select, textarea { font-family: inherit; }

/* ── Utilitários ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 80px 40px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--roxo-bg);
  border: 1px solid var(--roxo-border);
  border-radius: var(--r-full);
  padding: 5px 14px;
  font-size: 11px;
  font-weight: 700;
  color: var(--roxo);
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.section-title {
  font-size: 32px;
  font-weight: 900;
  color: var(--txt);
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 10px;
}

.section-sub {
  font-size: 15px;
  color: var(--txt2);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 40px;
}

/* ── Botões ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
  border: none;
  border-radius: var(--r-md);
  padding: 10px 20px;
  cursor: pointer;
  transition: all var(--t-normal);
  white-space: nowrap;
}

.btn-primary {
  background: var(--roxo);
  color: #fff;
  box-shadow: 0 4px 14px oklch(0.62 0.21 258 / 0.30);
}
.btn-primary:hover {
  background: var(--roxo-dark);
  box-shadow: 0 6px 20px oklch(0.62 0.21 258 / 0.40);
  transform: translateY(-1px);
}

.btn-ghost {
  background: none;
  color: var(--txt);
  border: 1.5px solid var(--borda);
}
.btn-ghost:hover {
  border-color: var(--roxo);
  color: var(--roxo);
}

.btn-lg {
  font-size: 15px;
  padding: 13px 32px;
  border-radius: var(--r-lg);
}

/* ── Tags ── */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 700;
  border-radius: 4px;
  padding: 2px 7px;
}
.tag-gray   { background: oklch(0.96 0.005 270); color: oklch(0.50 0.01 270); }
.tag-blue   { background: oklch(0.96 0.02 230);  color: oklch(0.38 0.12 230); }
.tag-purple { background: var(--roxo-bg);         color: var(--roxo-dark); }
.tag-red    { background: oklch(0.97 0.02 25);   color: oklch(0.45 0.18 25); }
.tag-green  { background: oklch(0.97 0.03 145);  color: oklch(0.40 0.14 145); }
.tag-amber  { background: oklch(0.97 0.03 80);   color: oklch(0.48 0.13 60); }

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: var(--r-lg);
  padding: 20px;
  transition: all var(--t-normal);
}
.card:hover {
  border-color: var(--roxo);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ── Logo ── */
.nav-logo, .left-logo {
  font-family: 'Nunito', sans-serif !important;
  font-weight: 900;
}

/* ── Tooltip ── */
.nx-term {
  color: var(--roxo);
  font-weight: 700;
  border-bottom: 1px dotted var(--roxo-light);
  cursor: pointer;
  position: relative;
  display: inline;
}
.nx-tip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  background: oklch(0.18 0.04 265);
  color: oklch(0.92 0.03 270);
  font-size: 11px;
  border-radius: 10px;
  padding: 12px 14px;
  width: 220px;
  z-index: 999;
  line-height: 1.65;
  box-shadow: 0 8px 24px oklch(0 0 0 / 0.25);
  pointer-events: auto;
}
.nx-tip strong {
  color: var(--roxo-light);
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
}
.nx-tip em {
  color: oklch(0.82 0.14 165);
  font-style: normal;
  font-weight: 700;
}
.nx-tip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 16px;
  border: 5px solid transparent;
  border-top-color: oklch(0.18 0.04 265);
}
.nx-term:hover .nx-tip { display: block; }
.nx-term.open .nx-tip  { display: block; }
.nx-tip-btn {
  display: block;
  margin-top: 10px;
  background: var(--roxo);
  color: #fff !important;
  text-align: center;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s;
}
.nx-tip-btn:hover { background: var(--roxo-dark); }

@media (max-width: 768px) {
  .nx-tip {
    position: fixed;
    left: 16px;
    right: 16px;
    width: auto;
    bottom: 24px;
    top: auto;
    transform: none;
    z-index: 9999;
    pointer-events: auto;
    font-size: 12px;
  }
  .nx-tip::after { display: none; }
}

/* ── Responsivo básico ── */
@media (max-width: 768px) {
  .section { padding: 48px 20px; }
  .section-title { font-size: 24px; }
  .container { padding: 0 20px; }
}