/* ── ChartifyR – Modern Blog Theme (Light Only) ──────────── */

/* ---------- Custom properties ---------- */
:root {
  --accent:        #5b6abf;
  --accent-light:  #8994d6;
  --accent-teal:   #3d9e8a;
  --accent-bg:     #f0f1fa;
  --surface:       #ffffff;
  --surface-alt:   #f8f9fb;
  --text-primary:  #1a1a2e;
  --text-secondary:#5f6578;
  --border:        #dfe1eb;
  --radius:        0.75rem;
  --radius-lg:     1rem;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.05);
  --shadow-md:     0 4px 14px rgba(0,0,0,0.08);
  --shadow-lg:     0 8px 28px rgba(0,0,0,0.11);
  --transition:    0.25s cubic-bezier(.4,0,.2,1);
}

/* ---------- Global ---------- */
body {
  color: var(--text-primary);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Navbar – soft gradient bar ---------- */
.navbar {
  background: linear-gradient(
    120deg,
    rgba(170,200,220,0.45) 0%,
    rgba(180,175,220,0.40) 50%,
    rgba(170,220,205,0.35) 100%
  ) !important;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid rgba(0,0,0,0.07);
  transition: box-shadow var(--transition);
}

/* Navbar text & icons – strong contrast */
.navbar .navbar-brand,
.navbar .navbar-title {
  color: #1a1a2e !important;
  font-weight: 700;
}

.navbar .navbar-nav .nav-link {
  font-weight: 500;
  letter-spacing: 0.01em;
  color: #1a1a2e !important;
  transition: color var(--transition);
}

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

.navbar .bi,
.navbar .nav-link .bi,
.navbar .navbar-nav .nav-link i {
  color: #1a1a2e !important;
}

.navbar-logo {
  max-height: 52px;
  transition: transform var(--transition);
}

.navbar-logo:hover {
  transform: scale(1.05);
}

.navbar .aa-DetachedSearchButton,
.navbar .search-button {
  color: #1a1a2e !important;
  border-color: rgba(0,0,0,0.15) !important;
}

/* ---------- Title banner – plain white ---------- */
.quarto-title-banner {
  background: var(--surface) !important;
  padding-top: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.quarto-title-banner::after {
  display: none;
}

.quarto-title-banner .quarto-title .title {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary) !important;
}

.quarto-title-banner .quarto-title .subtitle,
.quarto-title-banner .quarto-title .description {
  color: var(--text-secondary) !important;
}

/* ---------- Hero intro (homepage) ---------- */
.hero-intro {
  margin: 1.25rem 0 2rem;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(170,200,220,0.10) 0%, rgba(180,175,220,0.08) 50%, rgba(170,220,205,0.08) 100%);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}

/* Keep hero card same width as the post listing */
@media (min-width: 992px) {
  .hero-intro {
    margin-right: 2em;
  }
}

.hero-intro:hover {
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent-teal);
}

.hero-intro h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #2d8e7a 0%, #4a59b0 40%, #7a4ec4 70%, #a855c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-intro p {
  margin-bottom: 0;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ---------- Post listing cards ---------- */
.quarto-listing-container-default .quarto-post {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.1rem;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.quarto-listing-container-default .quarto-post:hover {
  transform: translateY(-3px);
  border-color: var(--accent-light);
  box-shadow: var(--shadow-lg);
}

.quarto-listing-container-default .quarto-post .metadata {
  color: var(--text-secondary);
}

.quarto-listing-container-default .quarto-post .listing-title {
  font-weight: 700;
}

.quarto-listing-container-default .quarto-post .listing-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Post thumbnail images – uniform size */
.quarto-listing-container-default .quarto-post .thumbnail img {
  border-radius: var(--radius);
  transition: transform var(--transition);
  aspect-ratio: 3 / 2;
  object-fit: cover;
  width: 100%;
  height: auto;
}

.quarto-listing-container-default .quarto-post:hover .thumbnail img {
  transform: scale(1.03);
}

/* ---------- Category pills ---------- */
.listing-category,
.quarto-category {
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.2em 0.75em;
  background: var(--accent-bg) !important;
  color: var(--accent) !important;
  border: 1px solid var(--accent-light) !important;
  transition: all var(--transition);
}

.listing-category:hover,
.quarto-category:hover {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
  box-shadow: 0 2px 8px rgba(91,106,191,0.2);
}

/* ---------- Code blocks ---------- */
pre {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

div.sourceCode {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

code {
  font-size: 0.88em;
}

/* ---------- Content body ---------- */
.quarto-body-content h1,
.quarto-body-content h2 {
  font-weight: 750;
  letter-spacing: -0.01em;
  padding-bottom: 0.3em;
  border-bottom: 2px solid var(--accent-bg);
  margin-top: 2rem;
}

.quarto-body-content h3 {
  font-weight: 700;
}

/* Links inside post body */
.quarto-body-content a:not(.nav-link):not(.listing-title):not(.quarto-category) {
  color: var(--accent);
  text-decoration-color: rgba(91,106,191,0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition), color var(--transition);
}

.quarto-body-content a:not(.nav-link):not(.listing-title):not(.quarto-category):hover {
  color: var(--accent-teal);
  text-decoration-color: var(--accent-teal);
}

/* ---------- Sidebar / TOC ---------- */
#quarto-margin-sidebar {
  font-size: 0.9rem;
}

#quarto-margin-sidebar .margin-header-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--surface-alt);
  box-shadow: var(--shadow-sm);
}

/* ---------- Subscribe widget ---------- */
#mc_embed_signup h2 {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, #3d9e8a 0%, #5b6abf 50%, #7a5cbf 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#quarto-margin-sidebar input.email {
  border-radius: var(--radius) !important;
  border: 1px solid var(--border);
  padding: 0.5rem 0.7rem;
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}

#quarto-margin-sidebar input.email:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,106,191,0.12);
  outline: none;
}

#quarto-margin-sidebar input.button,
#mc-embedded-subscribe {
  border-radius: var(--radius) !important;
  background: linear-gradient(135deg, #3d9e8a 0%, #5b6abf 60%, #7a5cbf 100%) !important;
  color: #fff !important;
  border: none !important;
  padding: 0.45rem 1.1rem;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}

#quarto-margin-sidebar input.button:hover,
#mc-embedded-subscribe:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(91,106,191,0.2);
}

/* ---------- About page ---------- */
.about-entity .about-link {
  border-radius: 999px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.about-entity .about-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.about-entity img.about-image {
  border: 3px solid var(--accent-light);
  box-shadow: var(--shadow-md);
}

/* ---------- Footer ---------- */
.nav-footer {
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ---------- Callout blocks ---------- */
div.callout {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* ---------- Tables ---------- */
.table {
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- Selection highlight ---------- */
::selection {
  background: rgba(91,106,191,0.18);
}

/* ---------- Smooth scroll ---------- */
html {
  scroll-behavior: smooth;
}

/* ---------- Page transition fade-in ---------- */
#quarto-content {
  animation: fadeUp 0.4s ease-out;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}