/* Singh DevTools — fast, minimal, mobile-first */
:root {
  --bg: #0b0f14;
  --surface: #121820;
  --surface-2: #1a2330;
  --border: #2a3544;
  --text: #e8eef6;
  --muted: #9aabbd;
  --accent: #3dd6c6;
  --accent-dim: #2a9d8f;
  --warn: #e9c46a;
  --radius: 10px;
  --max: 920px;
  --font: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
code, pre {
  font-family: var(--mono);
  font-size: 0.9em;
}
code {
  background: var(--surface-2);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}
pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  overflow-x: auto;
  line-height: 1.5;
}
pre code { background: none; border: none; padding: 0; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 20, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}
.logo {
  font-weight: 650;
  color: var(--text);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.logo span { color: var(--accent); }
.nav { display: flex; flex-wrap: wrap; gap: 0.85rem 1.1rem; }
.nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}
.nav a:hover { color: var(--text); }

/* Hero */
.hero {
  padding: 3.25rem 0 2.5rem;
}
.hero h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.45rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}
.hero .lede {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 42rem;
  margin: 0 0 1.5rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.15rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #06221f;
}
.btn-primary:hover { background: #54e0d1; color: #06221f; }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--muted); background: var(--surface); }
.btn-soon {
  background: var(--surface-2);
  color: var(--muted);
  border-color: var(--border);
  cursor: default;
  pointer-events: none;
}
.btn-sm { padding: 0.5rem 0.9rem; font-size: 0.9rem; }

/* Sections */
section { padding: 2.5rem 0; }
.section-title {
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.35rem;
}
.section-sub {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

/* Product cards */
.cards {
  display: grid;
  gap: 1.15rem;
}
@media (min-width: 700px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.card h2, .card h3 {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.card .price {
  font-family: var(--mono);
  font-size: 1.05rem;
  color: var(--accent);
  font-weight: 600;
}
.card .badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  width: fit-content;
}
.badge-live { background: rgba(61, 214, 198, 0.15); color: var(--accent); }
.badge-draft { background: rgba(233, 196, 106, 0.12); color: var(--warn); }
.badge-soon { background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  flex: 1;
}
.card .card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.35rem;
}
.card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.card li { margin-bottom: 0.25rem; }

/* Product detail anchors */
.product-detail {
  border-top: 1px solid var(--border);
  scroll-margin-top: 4rem;
}
.product-detail .inner {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 720px) {
  .product-detail .inner {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}
.meta-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  min-width: 200px;
}
.meta-box .price { font-size: 1.35rem; margin-bottom: 0.75rem; }
.stack-list {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.92rem;
}
.stack-list li {
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
}
.stack-list li:last-child { border-bottom: none; }

/* FAQ */
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.65rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  color: var(--accent);
  margin-right: 0.55rem;
  font-weight: 700;
}
.faq details[open] summary::before { content: "−"; }
.faq details p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

/* About */
.about {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.35rem;
}
.about p { margin: 0 0 0.85rem; color: var(--muted); }
.about p:last-child { margin-bottom: 0; }

/* Guides */
.guide-list {
  display: grid;
  gap: 0.85rem;
}
.guide-item {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s;
}
.guide-item:hover {
  border-color: var(--accent-dim);
  text-decoration: none;
}
.guide-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--text);
}
.guide-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Article layout */
.article {
  padding: 2.25rem 0 3.5rem;
  max-width: 42rem;
}
.article h1 {
  font-size: clamp(1.55rem, 3.5vw, 2.1rem);
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin: 0 0 0.75rem;
}
.article .byline {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}
.article h2 {
  font-size: 1.3rem;
  margin: 2rem 0 0.65rem;
  letter-spacing: -0.02em;
}
.article h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
}
.article p { margin: 0 0 1rem; }
.article ul, .article ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--muted);
}
.article li { margin-bottom: 0.4rem; }
.article .callout {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
  color: var(--muted);
}
.article .callout strong { color: var(--text); }

.breadcrumb {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 2.5rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.site-footer .inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

/* Utilities */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}
.divider {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 0;
}

/* ---- Overnight rebuild additions ---- */
:root { --max: 980px; }

.cat-title {
  font-size: 1.15rem;
  margin: 2rem 0 1rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.cat-title:first-of-type { margin-top: 0.5rem; }

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.card .label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-right: 0.35rem;
}
.card-problem, .card-does, .card-why, .card-includes {
  flex: 0 1 auto !important;
  font-size: 0.92rem !important;
  line-height: 1.5;
}
.card-stack {
  flex: 1 !important;
  font-family: var(--mono);
  font-size: 0.78rem !important;
  color: var(--muted) !important;
  opacity: 0.9;
  margin-top: 0.15rem !important;
}
.cards-2 {
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .cards-2 { grid-template-columns: repeat(2, 1fr); }
}
.card-bundle .muted { font-size: 0.9rem; color: var(--muted); }

.product-hero {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
}
.product-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  letter-spacing: -0.03em;
  margin: 0.5rem 0 0.75rem;
}
.product-hero .lede {
  color: var(--muted);
  font-size: 1.12rem;
  margin: 0 0 1rem;
}
.product-hero-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 720px) {
  .product-hero-grid {
    grid-template-columns: 1fr 220px;
    align-items: start;
  }
}
.crumb {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--accent); }

.detail-block {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 4rem;
}
.detail-block h2 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}
.detail-block p { margin: 0 0 0.85rem; color: var(--muted); }
.detail-block p strong { color: var(--text); }
.detail-block ul {
  margin: 0 0 0.5rem;
  padding-left: 1.2rem;
  color: var(--muted);
}
.detail-block li { margin-bottom: 0.35rem; }
.feature-list { margin-top: 0.75rem !important; }
.muted { color: var(--muted); }
.mermaid-block {
  font-size: 0.85rem;
  white-space: pre-wrap;
}
.buy-again {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  border-bottom: none;
  padding-bottom: 3rem;
}

@media (min-width: 700px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 980px) {
  .cards:not(.cards-2) { grid-template-columns: repeat(2, 1fr); }
}

/* Demo captures on product pages */
.demo-figure {
  margin: 0;
  padding: 0;
}
.demo-media {
  display: block;
  width: 100%;
  max-width: 920px;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b0d10;
}
.demo-figure figcaption {
  margin-top: 0.65rem;
  font-size: 0.9rem;
}
.card-bundle .list-price {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: line-through;
  margin-left: 0.35rem;
}