/* Snowcap Datalab — Documentation Calm design system */

@font-face {
  font-family: "Lora";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/lora-normal-var.woff2") format("woff2-variations"), url("../fonts/lora-normal-var.woff2") format("woff2");
}
@font-face {
  font-family: "Lora";
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/lora-italic-var.woff2") format("woff2-variations"), url("../fonts/lora-italic-var.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/sourcesans-400.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/sourcesans-600.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/sourcesans-700.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/sourcesans-italic-var.woff2") format("woff2-variations"), url("../fonts/sourcesans-italic-var.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("../fonts/jbmono-normal-var.woff2") format("woff2-variations"), url("../fonts/jbmono-normal-var.woff2") format("woff2");
}

:root {
  /* Color */
  --paper: #FBFAF6;
  --surface: #FFFFFF;
  --ink: #22211B;
  --ink-soft: #45443B;
  --muted: #6E6A5C;
  --muted-deco: #93907F;
  --accent: #26344A;
  --accent-hover: #1B2636;
  --accent-tint: #EEF1F4;
  --border: #E8E5DC;
  --border-strong: #D8D4C6;
  --focus-ring: #B8551F;

  /* Type */
  --font-heading: "Lora", ui-serif, Georgia, serif;
  --font-body: "Source Sans 3", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Layout */
  --content-width: 1120px;
  --measure: 68ch;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  text-wrap: balance;
  margin: 0 0 0.6em;
  color: var(--ink);
}

h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.14; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.55rem, 3vw, 2.05rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.05rem; font-family: var(--font-body); font-weight: 700; }

p { margin: 0 0 1.1em; max-width: var(--measure); }
p.lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 54ch; }

em { font-family: var(--font-heading); font-style: italic; color: var(--accent); }

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.9em;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.75rem;
}

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--paper);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
  gap: 1.5rem;
}
.brand {
  display: inline-grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  column-gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
}
.brand:hover { color: var(--ink); }
.brand-mark {
  grid-row: 1 / 3;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-top: 2px;
  white-space: normal;
}

.nav-details > summary.nav-toggle { display: none; }
.nav-details > summary.nav-toggle::-webkit-details-marker { display: none; }
.nav-details > summary.nav-toggle::marker { content: ""; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.98rem;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}
.site-nav .nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 0.55rem 1.1rem;
  border-radius: 2px;
  font-weight: 600;
  font-size: 0.9rem;
}
.site-nav .nav-cta:hover { background: var(--accent-hover); color: #fff; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border-radius: 2px;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}
.text-link {
  color: var(--ink-soft);
  font-size: 0.95rem;
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
}
.text-link:hover { color: var(--accent); text-decoration-color: var(--accent); }

/* ---- Sections ---- */
section { padding: var(--space-6) 0; }
section.tight { padding: var(--space-5) 0; }
section + section { border-top: 1px solid var(--border); }

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-4);
}

/* Hero */
.hero { padding-top: var(--space-6); padding-bottom: var(--space-5); }
.hero .container { max-width: 52rem; }
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

/* Trust strip */
.trust-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
  background: var(--surface);
}
.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.trust-strip .sep { margin: 0 0.7rem; color: var(--border-strong); }

/* Problems grid */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.problem-card {
  background: var(--surface);
  padding: var(--space-4);
}
.problem-card h3 { margin-bottom: 0.5em; }
.problem-card p { margin-bottom: 0; color: var(--ink-soft); font-size: 0.98rem; }

/* Offerings */
.offerings {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.offering {
  border-top: 3px solid var(--accent);
  padding-top: 1.4rem;
}
.offering .index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  display: block;
  margin-bottom: 0.6rem;
}
.offering h3 { font-size: 1.2rem; }
.offering p { font-size: 0.97rem; color: var(--ink-soft); margin-bottom: 0.9em; }
.offering .stack {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}
.stack-item { display: inline-flex; align-items: center; gap: 0.4em; }
.stack .sep { margin: 0 0.7rem; color: var(--border-strong); }

/* Tech / brand logos — monochrome, inherits surrounding text color */
.tech-logo {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: currentColor;
}
.li-link { display: inline-flex; align-items: center; gap: 0.45em; }
.li-link .tech-logo { width: 15px; height: 15px; }

/* Fit lists */
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.fit-col {
  padding: var(--space-4);
  border: 1px solid var(--border);
  background: var(--surface);
}
.fit-col.no { background: transparent; border-style: dashed; }
.fit-col h3 { font-size: 1.05rem; font-family: var(--font-body); font-weight: 700; margin-bottom: 0.9em; }
.fit-col.yes h3 { color: var(--accent); }
.fit-col.no h3 { color: var(--muted); }
.fit-col ul { margin: 0; padding-left: 1.1rem; }
.fit-col li { margin-bottom: 0.65em; color: var(--ink-soft); font-size: 0.98rem; }

/* Case study teasers */
.work-list { display: flex; flex-direction: column; }
.work-item {
  display: grid;
  grid-template-columns: 11rem 1fr auto;
  gap: 1.75rem;
  align-items: baseline;
  padding: 1.6rem 0;
  border-top: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
}
.work-item:first-child { border-top: none; }
.work-item .tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.work-item h3 { font-size: 1.1rem; margin-bottom: 0.3em; }
.work-item p { margin: 0; font-size: 0.92rem; color: var(--muted); }
.work-item .arrow { color: var(--accent); font-family: var(--font-mono); align-self: center; }
.work-item:hover h3 { color: var(--accent); }

/* How I work */
.how-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.how-item .num {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 0.5rem;
}
.how-item h4 { margin-bottom: 0.4em; }
.how-item p { font-size: 0.95rem; color: var(--ink-soft); margin-bottom: 0; }

/* About teaser */
.about-teaser {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-4);
  align-items: center;
}
.about-teaser .portrait {
  width: 220px;
  height: 220px;
  border-radius: 2px;
  object-fit: cover;
  background: var(--accent-tint);
  border: 1px solid var(--border);
}
.about-teaser .portrait-placeholder {
  width: 220px;
  height: 220px;
  border-radius: 2px;
  background: var(--accent-tint);
  border: 1px dashed var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  padding: 1rem;
  line-height: 1.5;
}

/* Final CTA */
.final-cta {
  background: var(--ink);
  color: var(--paper);
}
.final-cta h2, .final-cta p.lede { color: var(--paper); }
.final-cta p.lede { color: #C9C7BB; }
.final-cta .btn-primary { background: var(--paper); color: var(--ink); }
.final-cta .btn-primary:hover { background: #fff; }
.final-cta .text-link { color: #C9C7BB; }
.final-cta .text-link:hover { color: var(--paper); }

/* Calendly embed */
.calendly-embed { max-width: 46rem; margin: 0 auto; }
.calendly-embed iframe {
  width: 100%;
  height: 750px;
  border: 1px solid var(--border);
  border-radius: 2px;
  display: block;
}
@media (max-width: 620px) {
  .calendly-embed iframe { height: 950px; }
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.4rem 0;
}
.faq-item:first-child { padding-top: 0; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ""; }
.faq-item summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--accent);
  flex-shrink: 0;
}
.faq-item[open] summary::before { content: "–"; }
.faq-item summary h3 { font-size: 1.05rem; font-family: var(--font-body); font-weight: 600; margin: 0; }
.faq-item p { margin: 0.9rem 0 0; color: var(--ink-soft); font-size: 0.98rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-5) 0 var(--space-4);
  background: var(--paper);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.footer-legal {
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.7;
}
.footer-legal strong { color: var(--ink-soft); }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 0.9em;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.55em; }
.footer-col a { color: var(--ink-soft); text-decoration: none; font-size: 0.95rem; }
.footer-col a:hover { color: var(--accent); text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.4rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Page header (interior pages) */
.page-header { padding-top: var(--space-5); padding-bottom: var(--space-4); }
.page-header .container { max-width: 46rem; }

/* Utility */
.stack-lg > * + * { margin-top: var(--space-4); }
.center-measure { max-width: var(--measure); }

/* Case study group headers + badges */
.cs-group-head {
  padding: var(--space-4) 0 var(--space-2);
}
.cs-group-head h2 { margin-bottom: 0.3em; }
.cs-group-head p { margin-bottom: 0; color: var(--muted); font-size: 0.95rem; }

.cs-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.25em 0.6em;
  border-radius: 2px;
  margin-left: 0.6em;
  vertical-align: middle;
}
.cs-badge.real { background: var(--accent-tint); color: var(--accent); border: 1px solid var(--border-strong); }
.cs-badge.illustrative { background: #F6EEE0; color: #8A5A22; border: 1px solid #E6D3B0; }

.cs-illustrative-note {
  font-size: 0.92rem;
  color: var(--muted);
  font-style: italic;
  border-left: 2px solid var(--border-strong);
  padding-left: 1rem;
  margin-top: -0.4rem;
}

/* Case study architecture figure */
.cs-figure {
  margin: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.1rem;
  border-radius: 2px;
}
.cs-figure img { display: block; width: 100%; height: auto; }
.cs-scroll-hint { display: none; }
.cs-figure figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
}

/* Clients strip */
.clients-row {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
  line-height: 2.1;
}
.clients-row .sep { margin: 0 0.7rem; color: var(--border-strong); }

/* Responsive */
@media (max-width: 860px) {
  .problems-grid { grid-template-columns: 1fr; }
  .offerings { grid-template-columns: 1fr; gap: 2.2rem; }
  .fit-grid { grid-template-columns: 1fr; }
  .how-list { grid-template-columns: 1fr; gap: 2.4rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-teaser { grid-template-columns: 1fr; text-align: left; }
  .about-teaser .portrait, .about-teaser .portrait-placeholder { width: 160px; height: 160px; }
  .work-item { grid-template-columns: 1fr; gap: 0.4rem; }
  .work-item .arrow { display: none; }

  /* Architecture diagrams are dense — shrinking them to phone width makes the
     labels unreadable, so scroll horizontally at a legible size instead. */
  .cs-figure { padding: 0.8rem; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .cs-figure img { width: auto; min-width: 640px; max-width: none; }
  .cs-scroll-hint {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    margin-bottom: 0.7rem;
  }
}

@media (min-width: 621px) {
  .nav-details > .site-nav { display: flex !important; }
}

@media (max-width: 620px) {
  .site-header .container { flex-wrap: wrap; }
  .nav-details { width: 100%; }
  .nav-details > summary.nav-toggle {
    display: inline-flex;
    align-items: center;
    background: none;
    border: 1px solid var(--border-strong);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.45rem 0.7rem;
    border-radius: 2px;
    cursor: pointer;
    list-style: none;
  }
  .nav-details[open] > summary.nav-toggle { margin-bottom: 0.9rem; }
  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--border);
  }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-3); }
  section { padding: var(--space-5) 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}