/* ============================================================
   Matisse pkgdown theme — custom styles
   Built on Bootstrap 5 / Bootswatch flatly
   Primary: #2c6e8a
   ============================================================ */

/* ── Hero ─────────────────────────────────────────────────── */
.mat-hero {
  background: linear-gradient(135deg, #1b4f6a 0%, #2c6e8a 55%, #3e8fa0 100%);
  color: #fff;
  border-radius: 12px;
  padding: 4rem 2.5rem 3.5rem;
  text-align: center;
  margin: 1.5rem 0 3rem;
}

.mat-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 1rem;
  border-bottom: none;
}

.mat-hero-sub {
  font-size: 1.15rem;
  opacity: 0.88;
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.55;
}

.mat-btn-primary {
  background: #fff;
  color: #1b4f6a;
  border: 2px solid #fff;
  font-weight: 600;
  border-radius: 6px;
  padding: 0.55rem 1.6rem;
  margin: 0.3rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.mat-btn-primary:hover {
  background: transparent;
  color: #fff;
  text-decoration: none;
}

.mat-btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.65);
  font-weight: 500;
  border-radius: 6px;
  padding: 0.55rem 1.6rem;
  margin: 0.3rem;
  text-decoration: none;
  transition: background 0.15s;
}
.mat-btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  text-decoration: none;
}

/* ── Section layout ───────────────────────────────────────── */
.mat-section {
  padding: 1rem 0 2.5rem;
}

.mat-section-title {
  font-size: 1.55rem;
  font-weight: 700;
  color: #1b4f6a;
  text-align: center;
  margin-bottom: 0.4rem;
  border-bottom: none;
}

.mat-section-sub {
  text-align: center;
  color: #6c757d;
  font-size: 1rem;
  margin-bottom: 2rem;
}

/* ── Feature cards ────────────────────────────────────────── */
.mat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.1rem;
  margin-bottom: 1rem;
}

.mat-card {
  background: #f4f9fc;
  border: 1px solid #cce3ef;
  border-top: 3px solid #2c6e8a;
  border-radius: 8px;
  padding: 1.4rem 1.3rem 1.2rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.mat-card:hover {
  box-shadow: 0 6px 20px rgba(44, 110, 138, 0.14);
  transform: translateY(-3px);
}

.mat-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1b4f6a;
  margin-bottom: 0.45rem;
  border-bottom: none;
}

.mat-card p {
  font-size: 0.875rem;
  color: #555;
  margin: 0;
  line-height: 1.5;
}

.mat-card-num {
  display: inline-block;
  background: #2c6e8a;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 50%;
  width: 1.5rem;
  height: 1.5rem;
  line-height: 1.5rem;
  text-align: center;
  margin-bottom: 0.75rem;
}

/* ── Figure showcase ──────────────────────────────────────── */
.mat-figure {
  text-align: center;
  margin: 0.5rem 0 3rem;
}

.mat-figure img {
  max-width: 680px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.13);
  border: 1px solid #e0eef4;
}

.mat-figure figcaption {
  margin-top: 0.9rem;
  font-size: 0.86rem;
  color: #6c757d;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
  font-style: italic;
}

/* ── Platform compatibility badges ───────────────────────── */
.mat-compat {
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

.mat-compat-group {
  margin-bottom: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem;
}

.mat-compat-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #888;
  white-space: nowrap;
  min-width: 11rem;
}

.mat-badge {
  display: inline-block;
  background: #e6f3f8;
  color: #1b4f6a;
  border: 1px solid #b5d9e8;
  border-radius: 20px;
  padding: 0.2rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
}

/* ── Installation box ─────────────────────────────────────── */
.mat-install {
  background: #f4f9fc;
  border-left: 4px solid #2c6e8a;
  border-radius: 0 8px 8px 0;
  padding: 1.4rem 1.8rem;
  margin: 0 auto 1rem;
  max-width: 560px;
}

.mat-install pre {
  background: transparent;
  border: none;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
}

/* ── Footer CTA ───────────────────────────────────────────── */
.mat-cta-footer {
  text-align: center;
  padding: 2.5rem 1rem 3rem;
  border-top: 1px solid #dee2e6;
  margin-top: 1rem;
}

.mat-cta-footer p {
  font-size: 1.1rem;
  color: #555;
  margin-bottom: 1rem;
}

/* ── General polish ───────────────────────────────────────── */

/* Tighter top padding so hero sits closer to the navbar */
#pkgdown-sidebar ~ .col-md-9 .row,
.row.mat-hero-row {
  padding-top: 0;
}

/* Remove default bottom border on h2 headings on the home page */
.template-home h2 {
  border-bottom: none;
}

/* Give the home page sidebar a little breathing room */
.template-home #pkgdown-sidebar {
  padding-top: 0.5rem;
}

/* ── Reduce excess horizontal whitespace ──────────────────── */

/* Pull the Bootstrap container inward less aggressively */
.container, .container-fluid, .container-xxl {
  padding-left: 1rem  !important;
  padding-right: 1rem !important;
}

/* Tighten the main content column on article/reference pages */
.template-article .col-md-9,
.template-reference-topic .col-md-9 {
  padding-left: 1.5rem;
  padding-right: 1rem;
}

/* Sidebar narrower so content gets more room */
.template-article #pkgdown-sidebar,
.template-reference-topic #pkgdown-sidebar {
  padding-right: 0.75rem;
}

/* ── Back-to-top button ───────────────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  display: none;          /* hidden until user scrolls */
  background: #2c6e8a;
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 2.6rem;
  height: 2.6rem;
  font-size: 1.2rem;
  line-height: 2.6rem;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0,0,0,0.25);
  transition: background 0.2s, opacity 0.2s;
  opacity: 0.85;
}

#back-to-top:hover {
  background: #1b4f6a;
  opacity: 1;
}