/* NicTool shared styles
 * Brand color: #336666 (teal)
 * Theme: dark navy, not black
 */

:root {
  --nt-bg:           #141d2b;
  --nt-surface:      #1a2537;
  --nt-surface-2:    #1f2d42;
  --nt-border:       #2a3a52;
  --nt-primary:      #336666;
  --nt-primary-hov:  #3d7a7a;
  --nt-primary-lt:   #4d9999;
  --nt-accent:       #63b3ed;
  --nt-text:         #dce6f0;
  --nt-muted:        #7a92ab;
  --nt-success:      #48bb78;
}

/* ── Base ───────────────────────────────────────────────── */
body {
  background: var(--nt-bg);
  color: var(--nt-text);
  min-height: 100vh;
}

a {
  color: var(--nt-primary-lt);
}

a:hover {
  color: var(--nt-accent);
}

/* ── Navbar ─────────────────────────────────────────────── */
.nt-navbar {
  background: var(--nt-primary) !important;
}

.nt-navbar .navbar-brand {
  color: #fff !important;
  font-weight: 700;
  letter-spacing: .03em;
}

.nt-navbar .navbar-brand:hover {
  opacity: .85;
}

.nt-navbar .nav-link {
  color: rgba(255,255,255,.8) !important;
}

.nt-navbar .nav-link:hover,
.nt-navbar .nav-link.active {
  color: #fff !important;
}

.nt-navbar .navbar-text {
  color: rgba(255,255,255,.6);
}

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--nt-surface);
  border-color: var(--nt-border);
}

.card-header {
  background: rgba(255,255,255,.04);
  border-color: var(--nt-border);
}

/* ── Feature cards (index page) ─────────────────────────── */
.nt-feature-card {
  background: var(--nt-surface);
  border: 1px solid var(--nt-border);
  border-radius: .5rem;
  padding: 1.75rem 1.5rem;
  transition: border-color .2s, transform .2s;
  text-decoration: none;
  color: var(--nt-text);
  display: block;
  height: 100%;
}

.nt-feature-card:hover {
  border-color: var(--nt-primary-lt);
  transform: translateY(-2px);
  color: var(--nt-text);
  text-decoration: none;
}

.nt-feature-card .nt-icon {
  font-size: 2rem;
  margin-bottom: .75rem;
  display: block;
}

.nt-feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: .4rem;
  color: var(--nt-primary-lt);
}

.nt-feature-card p {
  font-size: .88rem;
  color: var(--nt-muted);
  margin: 0;
  line-height: 1.5;
}

/* ── Hero ───────────────────────────────────────────────── */
.nt-hero {
  padding: 3.5rem 0 2.5rem;
}

.nt-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: #fff;
}

.nt-hero .lead {
  color: var(--nt-muted);
  font-size: 1.05rem;
}

.nt-brand-pill {
  display: inline-block;
  background: var(--nt-primary);
  color: #fff;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .15rem .55rem;
  border-radius: 99px;
  vertical-align: middle;
  margin-left: .4rem;
}

/* ── Dictionary / glossary ──────────────────────────────── */
.nt-term {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--nt-border);
}

.nt-term:last-child {
  border-bottom: none;
}

.nt-term dt {
  font-size: 1rem;
  font-weight: 600;
  color: var(--nt-primary-lt);
  margin-bottom: .35rem;
}

.nt-term dd {
  color: var(--nt-text);
  font-size: .9rem;
  line-height: 1.65;
  margin: 0 0 .25rem 0;
}

.nt-term dd.nt-sub {
  color: var(--nt-muted);
  font-size: .84rem;
  padding-left: 1rem;
}

.nt-term code {
  background: var(--nt-surface-2);
  border: 1px solid var(--nt-border);
  border-radius: 3px;
  padding: .1em .35em;
  font-size: .82em;
  color: var(--nt-accent);
}

/* ── Section heading ────────────────────────────────────── */
.nt-section-label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--nt-muted);
  margin-bottom: 1.25rem;
}

/* ── Footer ─────────────────────────────────────────────── */
.nt-footer {
  border-top: 1px solid var(--nt-border);
  padding: 1.5rem 0;
  margin-top: 3rem;
  text-align: center;
  font-size: .82rem;
  color: var(--nt-muted);
}

.nt-footer a {
  color: var(--nt-muted);
}

.nt-footer a:hover {
  color: var(--nt-primary-lt);
}

/* ── Utility ────────────────────────────────────────────── */
.text-nt-muted   { color: var(--nt-muted) !important; }
.text-nt-primary { color: var(--nt-primary-lt) !important; }
.border-nt       { border-color: var(--nt-border) !important; }
.bg-nt-surface   { background: var(--nt-surface) !important; }