/*
 * kristian-theme.css
 * Kristian Vepsäläinen — maailma on jakauma
 * Quarto custom stylesheet
 *
 * Käyttö _quarto.yml:ssä:
 *   format:
 *     html:
 *       css: kristian-theme.css
 *       theme: [flatly, kristian-theme.css]
 *
 * TAI theme: cosmo pohjana, lisää css: kristian-theme.css
 */

/* ─── Google Fonts ─────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;0,900;1,700&family=Source+Sans+3:wght@300;400;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Värimuuttujat ─────────────────────────────────────────────────────────── */
:root {
  --kv-red:    #e63946;
  --kv-teal:   #2a9d8f;
  --kv-orange: #f4a261;
  --kv-navy:   #1d3557;
  --kv-blue:   #457b9d;
  --kv-light:  #f8f9fa;
  --kv-white:  #ffffff;
  --kv-gray1:  #f1f3f5;
  --kv-gray2:  #dee2e6;
  --kv-gray3:  #868e96;
  --kv-text:   #212529;
  --kv-muted:  #495057;

  /* Typografia */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Sans 3', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing */
  --section-gap: 4rem;
}

/* ─── Perusasettelu ─────────────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--kv-text);
  background-color: var(--kv-white);
}

/* ─── Navigaatio ────────────────────────────────────────────────────────────── */
.navbar {
  background-color: var(--kv-navy) !important;
  border-bottom: 3px solid var(--kv-red);
  padding: 0.8rem 1.5rem;
}

.navbar-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--kv-white) !important;
  letter-spacing: 0.02em;
}

.navbar-nav .nav-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85) !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1rem !important;
  transition: color 0.2s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--kv-orange) !important;
}

/* ─── Hero-otsikko (etusivu) ────────────────────────────────────────────────── */
#quarto-content > * > h1:first-of-type,
.quarto-title h1,
h1.title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--kv-navy);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  position: relative;
}

/* ─── Postauksen hero-alue: tumma tausta → vaalea teksti ───────────────────── */
.quarto-title-banner {
  background-color: var(--kv-navy) !important;
  padding: 3rem 2rem 2.5rem 2rem;
}

.quarto-title-banner .quarto-title h1,
.quarto-title-banner h1.title {
  color: var(--kv-white) !important;
}

.quarto-title-banner .quarto-title h1::after,
.quarto-title-banner h1.title::after {
  background: var(--kv-red);
}

.quarto-title-banner .description,
.quarto-title-banner .quarto-title-meta,
.quarto-title-banner .quarto-title-meta-heading,
.quarto-title-banner .quarto-title-meta-contents {
  color: rgba(255, 255, 255, 0.82) !important;
}

.quarto-title-banner .quarto-title-meta-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--kv-orange) !important;
}

/* Punainen korostusviiva otsikon alle */
h1.title::after,
#quarto-content > * > h1:first-of-type::after {
  content: '';
  display: block;
  width: 4rem;
  height: 4px;
  background: var(--kv-red);
  margin-top: 0.75rem;
  border-radius: 2px;
}

/* ─── Otsikkohierarkia ──────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--kv-navy);
  font-weight: 700;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem);   line-height: 1.25; border-bottom: 2px solid var(--kv-gray2); padding-bottom: 0.4rem; margin-top: 3rem; }
h3 { font-size: 1.25rem; color: var(--kv-blue); font-style: italic; margin-top: 2rem; }
h4 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--kv-muted); }

/* ─── Kappaleet ja tekstielementit ─────────────────────────────────────────── */
p {
  margin-bottom: 1.25rem;
  color: var(--kv-text);
}

strong {
  font-weight: 600;
  color: var(--kv-navy);
}

em {
  font-style: italic;
  color: var(--kv-blue);
}

/* ─── Linkit ────────────────────────────────────────────────────────────────── */
a {
  color: var(--kv-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

a:hover {
  color: var(--kv-red);
  border-bottom-color: var(--kv-red);
}

/* ─── Listat ────────────────────────────────────────────────────────────────── */
ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

ul li, ol li {
  margin-bottom: 0.4rem;
  padding-left: 0.25rem;
}

ul li::marker {
  color: var(--kv-red);
}

ol li::marker {
  color: var(--kv-blue);
  font-weight: 600;
}

/* ─── Erottimet ─────────────────────────────────────────────────────────────── */
hr {
  border: none;
  border-top: 2px solid var(--kv-gray2);
  margin: var(--section-gap) 0;
}

/* ─── Koodi ─────────────────────────────────────────────────────────────────── */
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background-color: var(--kv-gray1);
  color: var(--kv-navy);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--kv-gray2);
}

pre {
  background-color: var(--kv-navy);
  color: #e8edf3;
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
  font-size: 0.88rem;
  border-left: 4px solid var(--kv-teal);
  box-shadow: 0 4px 12px rgba(29,53,87,0.15);
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
}

/* ─── Kuvaajat ja kuvat ─────────────────────────────────────────────────────── */
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

/* Profiilikuva pyöreäksi */
.img-fluid.rounded,
img[src*="kristian-vepsalainen"] {
  border-radius: 50% !important;
  border: 4px solid var(--kv-navy);
  box-shadow: 0 8px 24px rgba(29,53,87,0.2);
  max-width: 220px;
}

/* ─── Lainaukset / calloutit ────────────────────────────────────────────────── */
blockquote {
  border-left: 4px solid var(--kv-teal);
  background: var(--kv-gray1);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  border-radius: 0 6px 6px 0;
  font-style: italic;
  color: var(--kv-muted);
}

/* ─── Callout-box: maailma on jakauma -lainaus ──────────────────────────────── */
.callout {
  border-left: 5px solid var(--kv-red);
  background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
  border-radius: 0 8px 8px 0;
  padding: 1.5rem 2rem;
  margin: 2.5rem 0;
  box-shadow: 0 2px 8px rgba(230,57,70,0.08);
}

.callout-header {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--kv-red);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

/* ─── CTA-napit ─────────────────────────────────────────────────────────────── */
.btn-primary,
a.btn {
  background-color: var(--kv-red);
  border-color: var(--kv-red);
  color: var(--kv-white);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.65rem 1.75rem;
  border-radius: 4px;
  transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.btn-primary:hover,
a.btn:hover {
  background-color: var(--kv-navy);
  border-color: var(--kv-navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(29,53,87,0.25);
}

/* ─── Taulukot ──────────────────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 2rem 0;
}

th {
  background-color: var(--kv-navy);
  color: var(--kv-white);
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  padding: 0.85rem 1rem;
  text-align: left;
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--kv-gray2);
  vertical-align: top;
}

tr:nth-child(even) td {
  background-color: var(--kv-gray1);
}

tr:hover td {
  background-color: #edf2f7;
}

/* ─── Sivupalkki (TOC) ──────────────────────────────────────────────────────── */
#quarto-sidebar,
.sidebar {
  border-right: 1px solid var(--kv-gray2);
}

#TOC {
  border-left: 3px solid var(--kv-teal);
  padding-left: 1rem;
}

#TOC a {
  font-size: 0.88rem;
  color: var(--kv-muted);
  border-bottom: none;
}

#TOC a:hover,
#TOC a.active {
  color: var(--kv-red);
}

/* ─── Blogi-listaus ─────────────────────────────────────────────────────────── */
.quarto-post,
.listing-item {
  border: 1px solid var(--kv-gray2);
  border-radius: 8px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s;
  background: var(--kv-white);
}

.quarto-post:hover,
.listing-item:hover {
  box-shadow: 0 8px 24px rgba(29,53,87,0.1);
  transform: translateY(-3px);
  border-color: var(--kv-blue);
}

.listing-item .listing-title a {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--kv-navy);
  border-bottom: none;
}

.listing-item .listing-title a:hover {
  color: var(--kv-red);
}

.listing-item .listing-date,
.listing-item .listing-categories {
  font-size: 0.82rem;
  color: var(--kv-gray3);
  font-family: var(--font-body);
  font-weight: 300;
}

.listing-category {
  background-color: var(--kv-gray1);
  color: var(--kv-blue);
  border: 1px solid var(--kv-gray2);
  border-radius: 3px;
  padding: 0.15rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: background-color 0.2s, color 0.2s;
}

.listing-category:hover {
  background-color: var(--kv-navy);
  color: var(--kv-white);
}

/* ─── Footer ────────────────────────────────────────────────────────────────── */
#quarto-footer,
footer,
body > footer,
.nav-footer {
  background-color: var(--kv-navy) !important;
  color: rgba(255,255,255,0.85) !important;
  padding: 2rem 1.5rem !important;
  font-size: 0.88rem;
  border-top: 3px solid var(--kv-teal) !important;
  margin-top: var(--section-gap);
}

/* Kaikki tekstielementit footerissa */
#quarto-footer *,
footer *,
.nav-footer *,
.nav-footer p,
.nav-footer span,
.nav-footer div {
  color: rgba(255,255,255,0.85) !important;
}

#quarto-footer a,
footer a,
.nav-footer a,
.nav-footer .nav-link {
  color: rgba(255,255,255,0.85) !important;
  border-bottom: none;
  text-decoration: none;
}

#quarto-footer a:hover,
footer a:hover,
.nav-footer a:hover,
.nav-footer .nav-link:hover {
  color: var(--kv-orange) !important;
}

/* ─── "Edit this page" -linkkien piilotus tuotannossa ───────────────────────── */
/* Poista kommentti jos haluat piilottaa: */
/* .quarto-secondary-nav, .page-navigation { display: none; } */

/* ─── Pääsisältöalue ────────────────────────────────────────────────────────── */
#quarto-content {
  padding-top: 2rem;
  padding-bottom: 4rem;
}

main.content {
  max-width: 820px;
}

/* ─── Responsiivisuus ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --section-gap: 2.5rem; }

  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.4rem; }

  .navbar-brand { font-size: 1rem; }

  /* Korjaus: columns-layout pinoaa mobiililla */
  .columns {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
  }

  .column {
    width: 100% !important;
    text-align: center;
  }

  img[src*="kristian-vepsalainen"],
  .img-fluid.rounded {
    max-width: 160px !important;
    margin: 0 auto 1.75rem auto !important;
    display: block !important;
  }

  pre { font-size: 0.8rem; padding: 1rem; }
  table { font-size: 0.85rem; }
}

/* ─── Slogan-korostus ───────────────────────────────────────────────────────── */
/* Käyttö: <span class="slogan">maailma on jakauma</span> */
.slogan {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  color: var(--kv-red);
  font-size: 1.05em;
}

/* ─── Highlight-box ─────────────────────────────────────────────────────────── */
/* Käyttö: ::: {.highlight-box} ... ::: */
.highlight-box {
  background: linear-gradient(135deg, #edf6f9 0%, #fff 100%);
  border: 1px solid var(--kv-teal);
  border-radius: 8px;
  padding: 1.75rem 2rem;
  margin: 2.5rem 0;
}

/* ─── Stat-kortit (esim. "5 julkaisua", "10 vuotta") ───────────────────────── */
/* Käyttö: ::: {.stat-grid} ::: {.stat-card} ... ::: ::: */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.stat-card {
  background: var(--kv-navy);
  color: var(--kv-white);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
}

.stat-card .stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--kv-orange);
  line-height: 1;
  display: block;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 0.4rem;
  display: block;
  color: rgba(255,255,255,0.75);
}

/* ─── Animaatiot ────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .listing-item,
  .quarto-post {
    animation: fadeInUp 0.4s ease both;
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(16px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}