/* Gumbii Digital — capability-sheet design system */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/assets/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/assets/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/assets/fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}

:root {
  --paper: #F7F5F0;
  --ink: #191B1F;
  --muted: #565A62;      /* 4.5:1+ on paper */
  --rule: #D9D4C9;
  --rule-strong: #191B1F;
  --accent: #A83E12;     /* 4.5:1+ on paper */
  --accent-ink: #8C3410;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --measure: 68ch;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

::selection { background: var(--accent); color: var(--paper); }

a { color: var(--accent-ink); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}

.skip-link {
  position: absolute; left: var(--pad); top: -3rem;
  background: var(--ink); color: var(--paper);
  font-family: var(--mono); font-size: 0.8125rem;
  padding: 0.5rem 0.875rem; z-index: 10;
  transition: top 120ms ease;
}
.skip-link:focus { top: 0.75rem; color: var(--paper); }

/* ---------- masthead ---------- */

.masthead {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) var(--pad) clamp(2.5rem, 6vw, 4.5rem);
}

.doc-line {
  display: flex; justify-content: space-between; gap: 1rem;
  margin: 0 0 clamp(2rem, 6vw, 4rem);
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.masthead h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 7.5vw, 4.75rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.025em;
}

.masthead-sub {
  max-width: 44ch;
  margin: 0 0 2.25rem;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  line-height: 1.55;
  color: var(--ink);
  text-wrap: pretty;
}

.spec-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0 0 2.25rem;
  border-block: 1px solid var(--rule);
  background: var(--rule); /* 1px gaps read as hairline dividers in any wrap */
}
.spec {
  padding: 0.875rem 1.25rem 0.875rem 0;
  min-width: 0;
  background: var(--paper);
}
@media (min-width: 36em) and (max-width: 68.6875em) {
  .spec-strip { grid-template-columns: repeat(2, 1fr); }
  .spec:nth-child(even) { padding-left: 1.25rem; }
}
@media (min-width: 68.75em) {
  .spec-strip { grid-template-columns: repeat(4, 1fr); }
  .spec:not(:first-child) { padding-left: 1.25rem; }
}
.spec dt {
  font-family: var(--mono);
  font-size: 0.71875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.spec dd {
  margin: 0;
  display: flex; align-items: baseline; gap: 0.625rem; flex-wrap: wrap;
}
.code { font-family: var(--mono); font-size: 0.875rem; font-weight: 500; }

.copy {
  font-family: var(--mono);
  font-size: 0.71875rem;
  letter-spacing: 0.06em;
  color: var(--accent-ink);
  background: none;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.1rem 0.45rem;
  cursor: pointer;
  transition: border-color 120ms ease, color 120ms ease;
}
.copy:hover { border-color: var(--accent); color: var(--accent); }
.copy[data-done="true"] { color: var(--ink); border-color: var(--ink); }

.masthead-actions, .contact-actions {
  display: flex; flex-wrap: wrap; gap: 0.875rem;
}

.btn {
  display: inline-flex; align-items: baseline; gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  padding: 0.75rem 1.25rem;
  transition: background 120ms ease, color 120ms ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.btn-meta { font-size: 0.71875rem; color: inherit; opacity: 0.65; }

/* ---------- document grid ---------- */

.doc {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--pad);
}

@media (min-width: 62.5em) {
  .doc {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
  }
  .rail { position: sticky; top: 1.5rem; }
}

.rail ol {
  list-style: none;
  margin: 0; padding: 1.25rem 0 0;
  border-top: 2px solid var(--rule-strong);
  display: flex; flex-direction: column; gap: 0.125rem;
}
.rail a {
  display: flex; align-items: baseline; gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--muted);
  padding: 0.45rem 0.25rem;
  border-left: 2px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}
.rail a .n { color: var(--accent); font-weight: 500; }
.rail a:hover { color: var(--ink); }
.rail a[aria-current="true"] {
  color: var(--ink);
  border-left-color: var(--accent);
  padding-left: 0.625rem;
}

/* horizontal rail under 1000px */
@media (max-width: 62.4375em) {
  .rail { overflow-x: auto; }
  .rail ol {
    flex-direction: row; gap: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--rule);
    white-space: nowrap;
  }
  .rail a { border-left: 0; padding: 0.35rem 0; }
  .rail a[aria-current="true"] { padding-left: 0; }
}

/* ---------- sections ---------- */

.sect {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-top: 1px solid var(--rule);
}
.sect:first-child { border-top: 0; padding-top: clamp(1rem, 3vw, 2rem); }

.sect-head {
  display: flex; align-items: baseline; gap: 1rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}
.sect-n {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
}
.sect h2 {
  margin: 0;
  font-size: clamp(1.625rem, 3.5vw, 2.125rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

.lead {
  max-width: var(--measure);
  font-size: clamp(1.0625rem, 1.8vw, 1.1875rem);
  margin: 0 0 2rem;
  text-wrap: pretty;
}

/* numbered ledger (competencies) */
.ledger {
  list-style: none;
  counter-reset: ledger;
  margin: 0; padding: 0;
}
.ledger > li {
  counter-increment: ledger;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.25rem 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--rule);
}
.ledger > li:first-child { border-top: 0; padding-top: 0; }
.ledger > li::before {
  content: counter(ledger, decimal-leading-zero);
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--muted);
  padding-top: 0.3rem;
}
.ledger h3 {
  grid-column: 2;
  margin: 0;
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.ledger p {
  grid-column: 2;
  margin: 0.375rem 0 0;
  max-width: var(--measure);
  color: var(--muted);
}

/* differentiators */
.diff-list {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
}
.diff-list > div {
  padding: 1.75rem 2rem 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}
.diff-list dt {
  font-weight: 700;
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.diff-list dt::before {
  content: "— ";
  color: var(--accent);
}
.diff-list dd { margin: 0; color: var(--muted); max-width: 52ch; }

/* infrastructure figures */
.figures {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0 0 2rem;
  border-block: 1px solid var(--rule);
  background: var(--rule);
}
@media (min-width: 48em) {
  .figures { grid-template-columns: repeat(4, 1fr); }
}
.figure {
  display: flex;
  flex-direction: column-reverse; /* value above label; dt precedes dd in source */
  justify-content: flex-end;      /* pack to visual top so all values share a line */
  padding: 1.5rem 1rem 1.5rem 0;
  min-width: 0;
  background: var(--paper);
}
.figure:not(:first-child) { padding-left: 1.25rem; }
@media (max-width: 47.9375em) {
  .figure:nth-child(odd) { padding-left: 0; }
}
.figure dd {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.figure .unit { font-size: 0.55em; color: var(--accent); letter-spacing: 0; }
.figure dt {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.sect p:last-child { max-width: var(--measure); margin-bottom: 0; }

/* deployed stack strip */
.stack { margin-top: 2rem; }
.stack-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.875rem;
}
.stack-list {
  list-style: none;
  margin: 0 0 1rem; padding: 0;
  display: flex; flex-wrap: wrap; gap: 0.5rem;
}
.stack-list li {
  font-family: var(--mono);
  font-size: 0.8125rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  white-space: nowrap;
}
.stack-note {
  max-width: var(--measure);
  color: var(--muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* open-source repos */
.repos {
  list-style: none;
  margin: 0; padding: 0;
}
.repos > li {
  padding: 1.375rem 0;
  border-top: 1px solid var(--rule);
}
.repos > li:first-child { border-top: 0; padding-top: 0; }
.repo-name {
  font-family: var(--mono);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--accent-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  overflow-wrap: anywhere;
}
.repo-name:hover { color: var(--accent); border-bottom-color: var(--accent); }
.repos p {
  margin: 0.5rem 0 0;
  max-width: var(--measure);
  color: var(--muted);
}
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--ink); }

/* company data table */
.table-wrap { overflow-x: auto; }
table {
  border-collapse: collapse;
  width: 100%;
  border-top: 2px solid var(--rule-strong);
}
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.875rem 1.5rem 0.875rem 0;
  border-bottom: 1px solid var(--rule);
}
th[scope="row"] {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  width: 14rem;
  padding-top: 1.05rem;
  white-space: nowrap;
}
td { font-size: 1rem; }

@media (max-width: 43.75em) {
  th[scope="row"] { width: 9rem; white-space: normal; }
}

/* ---------- footer ---------- */

.footer {
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem var(--pad) 3rem;
}
.footer p {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem;
  margin: 0;
  padding-top: 1rem;
  border-top: 2px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- reveal (motion-safe only) ---------- */

@media (prefers-reduced-motion: no-preference) {
  .sect[data-reveal] {
    opacity: 0;
    translate: 0 12px;
    transition: opacity 480ms ease, translate 480ms ease;
  }
  .sect[data-reveal="in"] { opacity: 1; translate: 0 0; }
}