:root {
  --bg:           #080c12;
  --surface:      #0f1623;
  --surface-2:    #162035;
  --accent:       #00bfff;
  --accent-dim:   rgba(0, 191, 255, 0.08);
  --border:       rgba(0, 191, 255, 0.1);
  --border-hover: rgba(0, 191, 255, 0.35);
  --text:         #e2e8f0;
  --text-muted:   #56697a;
  --mono:         'JetBrains Mono', monospace;
  --sans:         'Inter', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #33ccff; }

/* ── Navbar ─────────────────────────────────── */
.site-nav {
  background: rgba(8, 12, 18, 0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  padding: 0.6rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav .navbar-brand {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent) !important;
  letter-spacing: 0.04em;
}

.site-nav .navbar-brand::before { content: '> '; opacity: 0.4; }

.site-nav .nav-link {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted) !important;
  padding: 0.4rem 0.7rem !important;
  transition: color 0.15s;
  letter-spacing: 0.02em;
}

.site-nav .nav-link:hover { color: var(--accent) !important; }

.site-nav .navbar-toggler {
  border-color: var(--border) !important;
  padding: 0.3rem 0.5rem;
}

.site-nav .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,191,255,0.6)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* ── Hero ────────────────────────────────────── */
.hero {
  padding: 3.5rem 0 2rem;
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  opacity: 0.8;
}

.hero h1 {
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.hero p {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 460px;
  margin: 0;
}

/* ── Section labels ──────────────────────────── */
.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

/* ── Tool cards ──────────────────────────────── */
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.3rem 1.1rem 1.3rem;
  display: block;
  position: relative;
  padding-right: 2.5rem;
  transition: border-color 0.15s, background 0.15s;
  color: inherit;
  height: 100%;
}

.tool-card:hover {
  border-color: var(--border-hover);
  background: var(--surface-2);
  color: inherit;
  text-decoration: none;
}

.tool-card-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
  opacity: 0.75;
}

.tool-card-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.tool-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.tool-card-arrow {
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.15s, transform 0.15s;
}

.tool-card:hover .tool-card-arrow {
  color: var(--accent);
  transform: translateY(-50%) translateX(3px);
}

/* ── Footer ──────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.1rem 0;
  margin-top: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent); }

/* ── Inner page overrides ────────────────────── */
.card.bg-dark {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
}

.card-header {
  background: transparent !important;
  border-bottom: 1px solid var(--border) !important;
}

.form-control, .form-select {
  background: var(--surface) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
  border-radius: 4px;
}

.form-control:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-dim) !important;
  background: var(--surface-2) !important;
}

.btn-primary {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #000 !important;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: 4px;
}

.btn-primary:hover {
  background: #33ccff !important;
  border-color: #33ccff !important;
}

.btn-outline-light {
  border-color: var(--border) !important;
  color: var(--text-muted) !important;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.btn-outline-light:hover {
  background: var(--surface-2) !important;
  color: var(--text) !important;
}

.alert-success {
  background: rgba(0, 255, 127, 0.07);
  border: 1px solid rgba(0, 255, 127, 0.18);
  color: #4ade80;
}

.alert-danger {
  background: rgba(255, 80, 80, 0.07);
  border: 1px solid rgba(255, 80, 80, 0.18);
  color: #f87171;
}

.alert-warning {
  background: rgba(255, 196, 0, 0.07);
  border: 1px solid rgba(255, 196, 0, 0.18);
  color: #fbbf24;
}

hr { border-color: var(--border); opacity: 1; }

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