/* ========================
   NOCTRA — Global Styles
   ======================== */



:root {
  /* Paleta */
  --bg-deep:        #0d0b14;
  --bg-card:        rgba(18, 13, 30, 0.82);
  --bg-card-hover:  rgba(28, 20, 46, 0.90);
  --border:         rgba(120, 80, 200, 0.18);
  --border-focus:   rgba(160, 110, 240, 0.55);

  --purple-bright:  #a855f7;
  --purple-mid:     #7c3aed;
  --purple-dim:     #4c2a85;
  --purple-glow:    rgba(168, 85, 247, 0.15);

  --text-primary:   #e8e0f5;
  --text-secondary: #9b8fc0;
  --text-muted:     #5c5278;

  --error:          #f87171;
  --error-bg:       rgba(248, 113, 113, 0.10);

  --success:        #a3e635;

  /* Tipografia */
  --font-mono:  'Silkscreen', sans-serif;
  --font-body:  'Roboto', sans-serif;

  /* Raios e sombras */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;

  --shadow-card: 0 8px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--border);
  --shadow-glow: 0 0 24px rgba(168, 85, 247, 0.20);
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--purple-bright);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: #c084fc;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/* Classe de erro compartilhada */
.error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--error);
  min-height: 1rem;
  letter-spacing: 0.02em;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 2rem;
  background: transparent;
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

nav a {
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

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

.main-link {
  color: var(--purple-bright);
  font-weight: 500;
  letter-spacing: 0.06em;
  margin-right: auto;
}

nav button {
  background: none;
  color: var(--text-secondary);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
}

nav button:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}