/*
  Visual language modeled after Solvior (Theme Junction demo):
  https://solvior.themejunction.net/home-01-landing/
  Tokens aligned to theme CSS variables (--tj-color-*).
*/

:root {
  /* Solvior core tokens */
  --tj-ff-body: "Lato", system-ui, sans-serif;
  --tj-ff-heading: "Libre Franklin", Georgia, "Times New Roman", serif;
  --tj-color-heading-primary: #051229;
  --tj-color-text-body: #364052;
  --tj-color-text-body-2: #7e8590;
  --tj-color-theme-primary: #0075ff;
  --tj-color-theme-dark: #051229;
  --tj-color-theme-bg: #e1e8f0;
  --tj-color-theme-bg-2: #dfecfd;
  --tj-color-common-white: #f7f7f7;
  --tj-color-border-2: #ced7e0;
  --tj-color-border-3: #d7d8db;
  --good: #0d8a55;
  --warn: #c45c00;

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 18px 50px rgba(5, 18, 41, 0.08);
  --shadow-soft: 0 8px 30px rgba(5, 18, 41, 0.06);
  --max: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--tj-ff-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--tj-color-text-body);
  background: var(--tj-color-common-white);
}

a {
  color: var(--tj-color-theme-primary);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  text-decoration: underline;
}

/* --- Top strip --- */
.site-top {
  background: var(--tj-color-theme-dark);
  color: #dfe6f2;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.site-top__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.55rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: center;
}

.site-top__tag {
  color: #aab6c9;
}

.site-top__link {
  color: #fff;
  font-weight: 600;
}

.site-top__link:hover {
  color: var(--tj-color-theme-bg-2);
  text-decoration: none;
}

/* --- Hero --- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(
      135deg,
      var(--tj-color-theme-bg-2) 0%,
      var(--tj-color-common-white) 48%,
      var(--tj-color-theme-bg) 100%
    );
  border-bottom: 1px solid var(--tj-color-border-3);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.45;
}

.hero::before {
  width: 420px;
  height: 420px;
  right: -120px;
  top: -160px;
  background: radial-gradient(circle at 30% 30%, rgba(0, 117, 255, 0.35), transparent 65%);
}

.hero::after {
  width: 320px;
  height: 320px;
  left: -100px;
  bottom: -140px;
  background: radial-gradient(circle at 70% 70%, rgba(5, 18, 41, 0.12), transparent 60%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.25rem 3.25rem;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--tj-ff-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tj-color-theme-primary);
  margin: 0 0 1rem;
}

.hero__kicker::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--tj-color-theme-primary);
  border-radius: 2px;
}

.hero h1 {
  font-family: var(--tj-ff-heading);
  font-weight: 800;
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--tj-color-heading-primary);
  margin: 0 0 1rem;
  max-width: 18ch;
}

.hero__lede {
  margin: 0;
  font-size: 1.08rem;
  color: var(--tj-color-text-body-2);
  max-width: 62ch;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.35rem;
}

.badge {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--tj-color-border-2);
  color: var(--tj-color-text-body);
  box-shadow: var(--shadow-soft);
}

/* --- Layout --- */
.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.section {
  padding: 3.25rem 0;
  border-bottom: 1px solid var(--tj-color-border-3);
}

.section:last-of-type {
  border-bottom: none;
}

.section--muted {
  background: linear-gradient(180deg, transparent, rgba(225, 232, 240, 0.55));
  margin: 0 -1.25rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  border-bottom-color: transparent;
}

.section__kicker {
  font-family: var(--tj-ff-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tj-color-theme-primary);
  margin: 0 0 0.5rem;
}

.section h2 {
  font-family: var(--tj-ff-heading);
  font-weight: 700;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  color: var(--tj-color-heading-primary);
  margin: 0 0 1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  border: none;
  padding: 0;
}

.section h3 {
  font-family: var(--tj-ff-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--tj-color-heading-primary);
  margin: 1.5rem 0 0.5rem;
}

.section p {
  margin: 0.65rem 0;
}

.muted {
  color: var(--tj-color-text-body-2);
  font-size: 0.98rem;
}

/* --- TOC --- */
nav.toc {
  margin-top: -2rem;
  position: relative;
  z-index: 2;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--tj-color-border-3);
}

nav.toc h2 {
  font-family: var(--tj-ff-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--tj-color-heading-primary);
}

nav.toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

@media (min-width: 640px) {
  nav.toc ul {
    grid-template-columns: repeat(2, 1fr);
  }
}

nav.toc a {
  display: block;
  padding: 0.45rem 0.15rem;
  color: var(--tj-color-text-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

nav.toc a:hover {
  color: var(--tj-color-theme-primary);
  text-decoration: none;
  background: var(--tj-color-theme-bg-2);
}

/* --- Cards --- */
.cards {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 900px) {
  .cards.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--tj-color-border-3);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.card h3 {
  margin-top: 0;
  font-size: 1.08rem;
}

.card ul {
  margin: 0.65rem 0 0;
  padding-left: 1.1rem;
}

.card li {
  margin: 0.35rem 0;
}

.good {
  color: var(--good);
  font-weight: 700;
}

.warn {
  color: var(--warn);
  font-weight: 700;
}

/* --- Callouts --- */
.callout {
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  margin: 1.25rem 0;
  background: linear-gradient(90deg, rgba(0, 117, 255, 0.1), #fff);
  border: 1px solid rgba(0, 117, 255, 0.22);
  border-left: 4px solid var(--tj-color-theme-primary);
}

.callout.warn {
  background: linear-gradient(90deg, rgba(196, 92, 0, 0.08), #fff);
  border-color: rgba(196, 92, 0, 0.25);
  border-left-color: var(--warn);
}

.callout strong {
  font-family: var(--tj-ff-heading);
  color: var(--tj-color-heading-primary);
}

/* --- Prototype figure --- */
.prototype-figure {
  margin: 1.5rem 0 0;
}

.prototype-figure a {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--tj-color-border-3);
  box-shadow: var(--shadow-card);
  background: #000;
}

.prototype-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.prototype-figure figcaption {
  margin-top: 0.85rem;
  font-size: 0.92rem;
  color: var(--tj-color-text-body-2);
}

/* --- Quotes (testimonial style) --- */
.quote-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

blockquote {
  margin: 0;
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--tj-color-border-3);
  box-shadow: var(--shadow-soft);
  position: relative;
}

blockquote::before {
  content: "“";
  font-family: var(--tj-ff-heading);
  font-size: 3rem;
  line-height: 1;
  color: var(--tj-color-theme-primary);
  opacity: 0.35;
  position: absolute;
  top: 0.5rem;
  right: 1rem;
}

blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--tj-color-text-body);
}

blockquote cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--tj-color-heading-primary);
  border-top: 1px solid var(--tj-color-border-3);
  padding-top: 0.85rem;
}

/* --- Recommendations --- */
ol.recs {
  margin: 0.75rem 0 0;
  padding-left: 1.35rem;
  counter-reset: rec;
}

ol.recs li {
  margin: 0.85rem 0;
  padding-left: 0.35rem;
}

ol.recs li::marker {
  font-family: var(--tj-ff-heading);
  font-weight: 800;
  color: var(--tj-color-theme-primary);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
  background: var(--tj-color-theme-bg);
  padding: 0.12em 0.4em;
  border-radius: 6px;
  border: 1px solid var(--tj-color-border-2);
}

/* --- Sources list --- */
.source-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.source-list li {
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--tj-color-border-3);
  font-weight: 600;
}

.source-list li:last-child {
  border-bottom: none;
}

/* --- Footer --- */
.site-footer {
  background: var(--tj-color-theme-dark);
  color: #b8c2d4;
  margin-top: 0;
  padding: 2.5rem 1.25rem;
  font-size: 0.92rem;
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.site-footer a {
  color: #fff;
}

.site-footer__title {
  font-family: var(--tj-ff-heading);
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.site-footer__note {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: #8b98ad;
}