/* CoreShift Technologies — site styles
 * Industrial precision aesthetic. Dark mode, sodium-orange accent.
 * Fonts: Fraunces (display) + Manrope (body) + JetBrains Mono (code)
 */

:root {
  --bg:           #0c0c0d;
  --bg-elev:      #131316;
  --bg-card:      #18181c;
  --line:         #26262c;
  --line-soft:    #1d1d22;
  --text:         #f5f3ee;
  --text-dim:     #a8a59d;
  --text-faint:   #6b6962;
  --accent:       #ff6b1f;
  --accent-soft:  #ff8a4d;
  --accent-deep:  #b34611;
  --good:         #67d28a;
  --warn:         #f0b956;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', -apple-system, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.005em;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* ----- Typography ----- */

.display, h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  color: var(--text);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin: 0 0 1.5rem;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin: 4rem 0 1.5rem;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);
}

h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  font-weight: 600;
  margin: 0 0 0.5rem;
}

p {
  margin: 0 0 1.25rem;
  color: var(--text);
}

p.lead {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--text-dim);
  font-weight: 300;
  max-width: 38em;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms ease;
}

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

code, .mono {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.92em;
  background: var(--bg-elev);
  padding: 0.15em 0.45em;
  border-radius: 3px;
  color: var(--accent-soft);
}

pre {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.25rem;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.55;
}

pre code {
  background: transparent;
  padding: 0;
  color: var(--text);
}

/* ----- Layout ----- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
  border-top: 1px solid var(--line-soft);
}

section:first-of-type { border-top: none; }

hr.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 4rem 0;
}

/* ----- Navigation ----- */

nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 12, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}

nav.site-nav .nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

nav.site-nav .brand {
  font-family: 'Fraunces', serif;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  border: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

nav.site-nav .brand .logo-mark {
  width: 22px;
  height: 22px;
  display: inline-block;
  transition: transform 220ms ease;
}

nav.site-nav .brand:hover .logo-mark {
  transform: rotate(90deg);
}

nav.site-nav .nav-cluster {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

nav.site-nav .nav-links {
  display: flex;
  gap: 1.75rem;
  font-size: 0.9rem;
}

nav.site-nav .nav-links a {
  color: var(--text-dim);
  border: none;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 2px 0;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: color 150ms ease, background-size 260ms ease;
}

nav.site-nav .nav-links a:hover {
  color: var(--text);
  background-size: 100% 1px;
}

nav.site-nav .nav-links a.active {
  color: var(--text);
  position: relative;
  padding-left: 0.85rem;
}

nav.site-nav .nav-links a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(255, 107, 31, 0.55);
}

nav.site-nav .nav-sig {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
  white-space: nowrap;
}

@media (max-width: 900px) {
  nav.site-nav .nav-sig { display: none; }
}

/* ----- Hero ----- */

.hero {
  padding: 6rem 0 5rem;
  border-top: none;
}

.hero .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero .eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--accent);
}

/* ----- Cards / panels ----- */

.panel {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.panel-title {
  font-family: 'Manrope', sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-faint);
  margin-bottom: 1rem;
  font-weight: 600;
}

/* ----- Grids ----- */

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  section { padding: 3rem 0; }
  h1 { margin-bottom: 1rem; }
  h2 { margin: 3rem 0 1rem; }
  nav.site-nav .nav-links { gap: 1rem; font-size: 0.85rem; }
  nav.site-nav .brand .full-name { display: none; }
}

/* ----- Numbered lists with custom styling ----- */

ol.steps {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  counter-reset: step;
}

ol.steps > li {
  counter-increment: step;
  padding: 0 0 2rem 4rem;
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 2rem;
}

ol.steps > li:last-child {
  border-bottom: none;
}

ol.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

ol.steps > li h3 {
  margin-top: 0;
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ----- Tables ----- */

table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}

table.data th {
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
}

table.data td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  color: var(--text);
}

table.data tr:last-child td { border-bottom: none; }

/* ----- Badges ----- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
  font-weight: 500;
}

.badge-now { background: rgba(103, 210, 138, 0.12); color: var(--good); }
.badge-soon { background: rgba(240, 185, 86, 0.12); color: var(--warn); }
.badge-planned { background: rgba(168, 165, 157, 0.1); color: var(--text-dim); }
.badge-pilot { background: rgba(255, 107, 31, 0.14); color: var(--accent-soft); }

/* ----- Buttons / inline calls ----- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.7rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: -0.005em;
  border: none;
  transition: background 150ms ease;
}

.btn:hover {
  background: var(--accent-soft);
  border-color: transparent;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--bg-elev);
  border-color: var(--text-faint);
}

/* ----- Bot catalog tile ----- */

.bot-tile {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.5rem;
  transition: border-color 200ms ease, transform 200ms ease;
  display: flex;
  flex-direction: column;
}

.bot-tile:hover {
  border-color: var(--accent-deep);
  transform: translateY(-2px);
}

.bot-tile .bot-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.bot-tile .bot-icon {
  width: 28px;
  height: 28px;
  color: var(--text-dim);
  flex-shrink: 0;
  transition: color 180ms ease;
}

.bot-tile:hover .bot-icon {
  color: var(--accent);
}

.bot-tile .bot-name {
  font-family: 'Fraunces', serif;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0.85rem 0 0.25rem;
}

.bot-tile .bot-tagline {
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.5;
  margin: 0.35rem 0 0.75rem;
}

.bot-tile .bot-desc {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0.5rem 0 0;
}

.bot-tile ul.bot-bullets {
  list-style: none;
  padding: 0;
  margin: 0.35rem 0 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.5;
}

.bot-tile ul.bot-bullets li {
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.35rem;
}

.bot-tile ul.bot-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 1px;
  background: var(--text-faint);
}

/* ----- Use case card ----- */

.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.usecase-card h3 {
  margin-top: 1.25rem;
}

.usecase-card h3:first-of-type {
  margin-top: 0.75rem;
}

.usecase-card .uc-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.25rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line-soft);
  align-items: baseline;
}

.usecase-card .uc-row:first-of-type { border-top: none; }

.usecase-card .uc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

.usecase-card .uc-body {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 600px) {
  .usecase-card .uc-row {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}

/* ----- Pricing tier card ----- */

.tier-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.tier-card .tier-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.tier-card .tier-name {
  font-family: 'Fraunces', serif;
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 0.4rem;
}

.tier-card .tier-price {
  font-family: 'Fraunces', serif;
  font-size: 2rem;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin: 0.25rem 0 0.4rem;
}

.tier-card .tier-price .per {
  font-family: 'Manrope', sans-serif;
  font-size: 0.85rem;
  color: var(--text-faint);
  letter-spacing: 0;
}

.tier-card .tier-desc {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.5;
  margin: 0.5rem 0 1rem;
}

.tier-card .tier-includes {
  font-size: 0.85rem;
  color: var(--text);
  border-top: 1px solid var(--line-soft);
  padding-top: 0.9rem;
}

.tier-card .tier-includes .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  display: block;
  margin-bottom: 0.4rem;
}

/* ----- Worked example callout ----- */

blockquote.example {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-elev);
  border-radius: 0 4px 4px 0;
  color: var(--text);
  font-size: 0.95rem;
  font-style: normal;
}

/* ----- Walkthrough side-by-side ----- */

.walkthroughs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

@media (max-width: 900px) {
  .walkthroughs { grid-template-columns: 1fr; gap: 1rem; }
}

.walkthroughs > div .wt-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.walkthroughs ol.steps > li {
  padding-left: 3rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
}

.walkthroughs ol.steps > li h3 {
  font-size: 1.15rem;
}

.walkthroughs ol.steps > li p {
  font-size: 0.92rem;
}

/* ----- Footer ----- */

footer.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 6rem;
  padding: 3rem 0 2rem;
  font-size: 0.85rem;
  color: var(--text-faint);
}

footer.site-footer .footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 768px) {
  footer.site-footer .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

footer.site-footer h5 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  font-weight: 600;
  margin: 0 0 1rem;
  font-family: 'Manrope', sans-serif;
}

footer.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

footer.site-footer li { margin-bottom: 0.5rem; }

footer.site-footer a {
  color: var(--text-dim);
  border: none;
}

footer.site-footer a:hover { color: var(--text); }

footer.site-footer .copy {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line-soft);
  text-align: left;
}

/* ----- Page-load fade ----- */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero h1, .hero p.lead, .hero .eyebrow, .hero .btn {
  animation: fadeUp 600ms ease both;
}

.hero .eyebrow { animation-delay: 0ms; }
.hero h1 { animation-delay: 120ms; }
.hero p.lead { animation-delay: 200ms; }
.hero .btn, .hero .btn-ghost { animation-delay: 280ms; }

/* ----- Misc utility ----- */

.text-dim { color: var(--text-dim); }
.text-faint { color: var(--text-faint); }
.text-accent { color: var(--accent); }
.mono-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}