/* ============================================================
   ShareBridge — Quarto site custom styles
   ============================================================ */

/* Brand colours */
:root {
  --sb-blue:       #2563eb;
  --sb-blue-dark:  #1d4ed8;
  --sb-blue-light: #eff6ff;
  --sb-slate:      #0f172a;
  --sb-muted:      #64748b;
  --sb-border:     #e2e8f0;
  --sb-surface:    #f8fafc;
}

/* ---------- Navbar ---------- */
.navbar {
  border-bottom: 1px solid var(--sb-border);
  box-shadow: 0 1px 4px rgba(15,23,42,.06);
}
.navbar-brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.3px;
  color: var(--sb-slate) !important;
}

/* ---------- Hero section (index page) ---------- */
.hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 60%, #2563eb 100%);
  color: #ffffff;
  padding: 80px 0 72px;
  text-align: center;
  margin-bottom: 0;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  line-height: 1.1;
}
.hero p.lead {
  font-size: 1.2rem;
  color: rgba(255,255,255,.82);
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.6;
}
.hero .btn-hero {
  display: inline-block;
  padding: 14px 32px;
  background: #ffffff;
  color: var(--sb-blue) !important;
  font-weight: 700;
  font-size: .95rem;
  border-radius: 8px;
  text-decoration: none !important;
  margin: 0 6px 10px;
  transition: box-shadow .15s, transform .1s;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.hero .btn-hero:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
  transform: translateY(-1px);
}
.hero .btn-hero-outline {
  background: transparent;
  color: #ffffff !important;
  border: 2px solid rgba(255,255,255,.65);
  box-shadow: none;
}
.hero .btn-hero-outline:hover {
  border-color: #ffffff;
  background: rgba(255,255,255,.1);
}

/* ---------- Feature cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 40px 0;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--sb-border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: box-shadow .15s, border-color .15s;
}
.feature-card:hover {
  box-shadow: 0 4px 20px rgba(15,23,42,.08);
  border-color: #bfdbfe;
}
.feature-card .icon {
  font-size: 1.7rem;
  margin-bottom: 12px;
  display: block;
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--sb-slate);
}
.feature-card p {
  font-size: .88rem;
  color: var(--sb-muted);
  line-height: 1.55;
  margin: 0;
}

/* ---------- Step callouts ---------- */
.step-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin: 24px 0;
}
.step-list li {
  counter-increment: step-counter;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.step-list li::before {
  content: counter(step-counter);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--sb-blue);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
}

/* ---------- Callout overrides ---------- */
.callout {
  border-radius: 10px;
  border-left-width: 4px;
}
.callout-tip    { background: #f0fdf4; border-color: #16a34a; }
.callout-note   { background: var(--sb-blue-light); border-color: var(--sb-blue); }
.callout-warning{ background: #fffbeb; border-color: #d97706; }
.callout-important { background: #fef2f2; border-color: #dc2626; }

/* ---------- Reference table ---------- */
.ref-table th {
  background: var(--sb-surface);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--sb-muted);
}
.ref-table td code {
  background: var(--sb-surface);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .85rem;
}

/* ---------- Badge pills ---------- */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.6;
}
.badge-blue  { background: var(--sb-blue-light); color: var(--sb-blue); }
.badge-green { background: #f0fdf4; color: #166534; }
.badge-gray  { background: #f1f5f9; color: #475569; }

/* ---------- Workflow diagram ---------- */
.workflow {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  margin: 32px 0;
  justify-content: center;
}
.workflow-step {
  background: #ffffff;
  border: 1px solid var(--sb-border);
  border-radius: 10px;
  padding: 14px 20px;
  text-align: center;
  min-width: 130px;
  font-size: .88rem;
}
.workflow-step strong { display: block; color: var(--sb-slate); margin-bottom: 3px; }
.workflow-step span   { color: var(--sb-muted); font-size: .8rem; }
.workflow-arrow {
  color: #94a3b8;
  font-size: 1.4rem;
  padding: 0 8px;
  flex-shrink: 0;
}

/* ---------- General tweaks ---------- */
h1, h2, h3, h4 { letter-spacing: -.2px; }
h2 { border-bottom: 1px solid var(--sb-border); padding-bottom: .4em; margin-top: 2.2rem; }
code { font-size: .88em; }
pre { border-radius: 8px; }
.page-footer { border-top: 1px solid var(--sb-border); font-size: .85rem; color: var(--sb-muted); }