/* ===========================
   Cognitio Labs - Dark AI Theme
   Terminal-style typography
   =========================== */

:root {
  --bg-primary: #0B0F19;
  --bg-secondary: #111827;
  --bg-card: #1A2236;
  --accent: #3B82F6;
  --accent-hover: #2563EB;
  --accent-cyan: #06B6D4;
  --accent-green: #22C55E;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --border: rgba(255, 255, 255, 0.08);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ---- Global ---- */
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  color: var(--text-primary);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

/* ---- Terminal typography ---- */
#mainNav .navbar-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
}

#mainNav .navbar-nav .nav-item .nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.btn-xl {
  letter-spacing: 0.06em;
  font-size: 0.8rem;
}

/* Terminal cursor blink on hero title */
header.masthead h1::after {
  content: '_';
  color: var(--accent-cyan);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Section titles with > prefix */
.page-section h2::before,
header.masthead + .page-section h2::before {
  content: '> ';
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* Service item titles */
.page-section .h4 {
  font-size: 1rem;
}

/* Card titles */
.card h4 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
}

.card p {
  font-size: 0.9rem;
  line-height: 1.65;
}

/* Small / meta text */
.small, small, .card .small {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

footer .small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.text-muted {
  color: var(--text-secondary) !important;
}

/* ---- Accent color ---- */
.text-primary {
  color: var(--accent) !important;
}

.bg-primary {
  background-color: var(--bg-secondary) !important;
}

hr.divider {
  background-color: var(--accent-cyan);
}

hr.divider-light {
  background-color: rgba(255, 255, 255, 0.3);
}

/* ---- Buttons ---- */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  border: none;
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background: linear-gradient(135deg, var(--accent-hover), #0891B2);
  border: none;
}

.btn-light {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-light:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-xl {
  letter-spacing: 0.05em;
}

/* ---- Navbar ---- */
#mainNav {
  background-color: var(--bg-primary);
  box-shadow: 0 1px 0 var(--border);
}

#mainNav .navbar-brand {
  color: var(--text-primary);
}

#mainNav .navbar-nav .nav-item .nav-link {
  color: var(--text-secondary);
}

#mainNav .navbar-nav .nav-item .nav-link:hover,
#mainNav .navbar-nav .nav-item .nav-link:active {
  color: var(--accent) !important;
}

#mainNav .navbar-nav .nav-item .nav-link.active {
  color: var(--accent) !important;
}

@media (min-width: 992px) {
  #mainNav {
    background-color: transparent;
    box-shadow: none;
  }
  #mainNav .navbar-brand {
    color: rgba(255, 255, 255, 0.85);
  }
  #mainNav .navbar-brand:hover {
    color: #fff;
  }
  #mainNav .navbar-nav .nav-item .nav-link {
    color: rgba(255, 255, 255, 0.7);
  }
  #mainNav .navbar-nav .nav-item .nav-link:hover {
    color: #fff !important;
  }
  #mainNav.navbar-shrink {
    background-color: var(--bg-primary);
    box-shadow: 0 1px 0 var(--border);
  }
  #mainNav.navbar-shrink .navbar-brand {
    color: var(--text-primary);
  }
  #mainNav.navbar-shrink .navbar-brand:hover {
    color: var(--accent);
  }
  #mainNav.navbar-shrink .navbar-nav .nav-item .nav-link {
    color: var(--text-secondary);
  }
  #mainNav.navbar-shrink .navbar-nav .nav-item .nav-link:hover {
    color: var(--accent) !important;
  }
  #mainNav.navbar-shrink .navbar-nav .nav-item .nav-link.active {
    color: var(--accent) !important;
  }
}

.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.15);
}

.navbar-toggler-icon {
  filter: invert(1);
}

/* ---- Logo ---- */
.brand-logo {
  height: 36px;
  width: auto;
  border-radius: 4px;
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  transition: opacity 0.3s, max-width 0.3s, margin 0.3s;
  margin-right: 0 !important;
  filter: invert(1);
}

#mainNav.navbar-shrink .brand-logo {
  display: none;
}

/* ---- Masthead ---- */
header.masthead {
  background: linear-gradient(to bottom, rgba(11, 15, 25, 0.9) 0%, rgba(17, 24, 39, 0.85) 100%), url("../assets/img/bg-masthead.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-size: cover;
}

/* ---- Page sections ---- */
.page-section {
  border-bottom: 1px solid var(--border);
}

/* "About" section — uses bg-primary which we override to --bg-secondary */
.page-section.bg-primary {
  border-bottom: 1px solid var(--border);
}

/* Services and default sections */
.page-section:not(.bg-primary):not(.bg-dark):not(.bg-light) {
  background-color: var(--bg-primary);
}

/* Dark sections */
.bg-dark {
  background-color: var(--bg-card) !important;
}

/* Light sections — make them dark too */
.bg-light {
  background-color: var(--bg-secondary) !important;
}

/* ---- Cards ---- */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.card .text-muted {
  color: var(--text-secondary) !important;
}

.card p:not(.text-muted) {
  color: var(--text-secondary);
}

.shadow-sm {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
}

/* ---- Contact ---- */
#contact a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

#contact a:hover {
  color: var(--accent-cyan);
}

.social-links a {
  color: var(--text-secondary) !important;
  transition: color 0.2s;
}

.social-links a:hover {
  color: var(--accent) !important;
}

/* ---- Footer ---- */
footer {
  background-color: var(--bg-primary) !important;
  border-top: 1px solid var(--border);
}

footer .text-muted {
  color: var(--text-secondary) !important;
}

/* ---- Careers page header ---- */
.page-section.bg-primary h1,
.page-section.bg-primary p {
  color: var(--text-primary);
}

.text-white-75 {
  color: rgba(241, 245, 249, 0.7) !important;
}