/* ============================================================
   GitPulseAnalytics — landing page
   Editorial / technical-paper treatment.
   Palette: paper + ink, oxblood primary, pine + ochre support.
   ============================================================ */

:root {
  --paper:      #F2F1EC;
  --paper-2:    #EAE8E0;
  --paper-3:    #E2DFD5;
  --white:      #FBFAF7;

  --ink:        #191C1E;
  --ink-soft:   #494F52;
  --ink-mute:   #7B8184;

  --rule:       #D3D0C5;
  --rule-soft:  #E0DDD2;

  --oxblood:    #A32E38;
  --pine:       #1F4E4A;
  --ochre:      #9A6B14;

  --maxw:       1180px;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; }
a { color: inherit; }
p { margin: 0; }

h1, h2, h3, h4 { margin: 0; font-weight: 400; }

h1, h2, h3 {
  font-family: var(--serif);
  font-variation-settings: "SOFT" 0, "WONK" 0;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.mono {
  font-family: var(--mono);
  font-size: 0.86em;
}

.rule { height: 1px; background: var(--rule); border: 0; margin: 0; }

/* Small mono label used throughout */
.label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ---------- Masthead nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
}

.nav-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 15px 0 13px;
}

.brand {
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.brand span { color: var(--oxblood); }

.nav-links {
  display: flex;
  align-items: baseline;
  gap: 26px;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav-links a i {
  font-style: normal;
  color: var(--ink-mute);
  margin-right: 6px;
}

.nav-links a:hover { color: var(--oxblood); border-bottom-color: var(--oxblood); }
.nav-links a.is-cta { color: var(--ink); font-weight: 500; border-bottom-color: var(--ink); }
.nav-links a.is-cta:hover { color: var(--oxblood); border-bottom-color: var(--oxblood); }

.nav-toggle {
  display: none;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--ink);
  padding: 5px 10px;
  color: var(--ink);
  cursor: pointer;
}

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

.hero { padding: 26px 0 0; }

.dateline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.dateline b { color: var(--oxblood); font-weight: 500; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 20px 64px;
  padding: 46px 0 52px;
  align-items: start;
}

.hero h1 {
  font-size: clamp(2.9rem, 6.6vw, 5.1rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 12ch;
}

.hero h1 em {
  font-style: italic;
  font-variation-settings: "WONK" 1;
  color: var(--oxblood);
}

.hero-right { padding-top: 10px; }

.standfirst {
  font-size: 1.06rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.standfirst strong { color: var(--ink); font-weight: 600; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 19px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.16s, color 0.16s, border-color 0.16s;
}

.btn svg { width: 15px; height: 15px; flex: none; }

.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--oxblood); border-color: var(--oxblood); }

.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--paper-3); }

/* Stat strip */

.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.strip div {
  padding: 20px 24px 20px 0;
  border-right: 1px solid var(--rule);
}

.strip div:last-child { border-right: 0; }
.strip div:not(:first-child) { padding-left: 24px; }

.strip b {
  display: block;
  font-family: var(--serif);
  font-size: 2.15rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
}

.strip div:nth-child(2) b { color: var(--oxblood); }
.strip div:nth-child(3) b { color: var(--pine); }
.strip div:nth-child(4) b { color: var(--ochre); }

.strip span {
  display: block;
  margin-top: 9px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--ink-mute);
}

/* ---------- Figure (app output) ---------- */

.figure { margin: 62px 0 10px; }

.figure-frame {
  border: 1px solid var(--ink);
  background: var(--white);
}

.figure-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 18px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.figure-body { padding: 24px 18px; }

.query-line {
  display: flex;
  gap: 11px;
  padding: 14px 16px;
  background: var(--paper-2);
  border-left: 2px solid var(--oxblood);
  font-family: var(--mono);
  font-size: 0.85rem;
  overflow-x: auto;
  white-space: nowrap;
}

.query-line b { color: var(--oxblood); font-weight: 500; flex: none; }

.caret {
  display: inline-block;
  width: 7px;
  height: 0.95em;
  background: var(--ink);
  vertical-align: text-bottom;
  animation: blink 1.15s steps(2, start) infinite;
}

@keyframes blink { to { visibility: hidden; } }

.pipeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 22px;
  border-top: 1px solid var(--rule);
}

.pipeline div {
  padding: 16px 20px 16px 0;
  border-right: 1px solid var(--rule);
}

.pipeline div:last-child { border-right: 0; }
.pipeline div:not(:first-child) { padding-left: 20px; }

.pipeline .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.pipeline .v {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 1.12rem;
}

.pipeline div:nth-child(1) .v { color: var(--pine); }
.pipeline div:nth-child(2) .v { color: var(--oxblood); }
.pipeline div:nth-child(3) .v { color: var(--ochre); }

.score-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.score-bar {
  flex: 1;
  height: 8px;
  background: var(--paper-3);
  position: relative;
}

.score-bar i {
  position: absolute;
  inset: 0 12% 0 0;
  background: repeating-linear-gradient(
    45deg,
    var(--pine) 0 5px,
    transparent 5px 10px
  );
  border-right: 2px solid var(--pine);
}

.score-row b { color: var(--ink); font-weight: 500; }

figcaption {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--ink-mute);
  max-width: 70ch;
}

figcaption b { color: var(--ink); font-weight: 500; }

/* ---------- Sections ---------- */

section { padding: 78px 0; }

.sec-head {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--ink);
  margin-bottom: 40px;
  align-items: baseline;
}

.sec-num {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oxblood);
}

.sec-head h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: 400;
  max-width: 22ch;
}

.sec-head p {
  grid-column: 2;
  margin-top: 12px;
  color: var(--ink-soft);
  max-width: 58ch;
}

/* ---------- Overview ---------- */

.two-col {
  display: grid;
  grid-template-columns: 130px 1fr 1fr;
  gap: 32px;
}

.two-col > .spacer { display: block; }

.prose p + p { margin-top: 15px; }
.prose p { color: var(--ink-soft); }
.prose strong { color: var(--ink); font-weight: 600; }

.pullquote {
  font-family: var(--serif);
  font-size: 1.42rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
  padding-left: 22px;
  border-left: 2px solid var(--oxblood);
  color: var(--ink);
}

.pullquote span {
  display: block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ---------- Features (ruled grid) ---------- */

.grid-ruled {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.cell {
  padding: 30px 28px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: transparent;
  transition: background 0.18s;
}

.cell:hover { background: var(--paper-2); }

.cell-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
}

.cell h3 {
  font-size: 1.2rem;
  margin: 14px 0 10px;
  font-weight: 400;
}

.cell p { color: var(--ink-soft); font-size: 0.93rem; }

/* ---------- Workflow ---------- */

.steps { border-top: 1px solid var(--ink); }

.step {
  display: grid;
  grid-template-columns: 130px 1fr 1fr;
  gap: 32px;
  padding: 34px 0;
  border-bottom: 1px solid var(--rule);
}

.step-n {
  font-family: var(--serif);
  font-size: 2.6rem;
  line-height: 0.9;
  color: var(--rule);
  font-weight: 400;
}

.step:nth-child(1) .step-n { color: var(--ink-mute); }
.step:nth-child(2) .step-n { color: var(--oxblood); }
.step:nth-child(3) .step-n { color: var(--pine); }
.step:nth-child(4) .step-n { color: var(--ochre); }

.step h3 { font-size: 1.35rem; font-weight: 400; margin-bottom: 8px; }

.step-file {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  padding: 2px 8px;
  margin-bottom: 14px;
}

.step p { color: var(--ink-soft); font-size: 0.95rem; }

.step-note {
  margin-top: 16px;
  padding: 14px 16px;
  background: var(--paper-2);
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.step-note b {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 6px;
  font-weight: 500;
}

/* ---------- Table ---------- */

.table-scroll { overflow-x: auto; border-top: 1px solid var(--ink); }

table { border-collapse: collapse; width: 100%; min-width: 620px; }

th, td {
  text-align: left;
  padding: 15px 20px 15px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

th {
  font-family: var(--mono);
  font-size: 0.69rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
  padding-top: 14px;
  padding-bottom: 12px;
}

td { font-size: 0.93rem; color: var(--ink-soft); }

td:first-child {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--oxblood);
  white-space: nowrap;
  width: 22%;
}

td:last-child { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-mute); }

/* ---------- Question list ---------- */

.q-list { border-top: 1px solid var(--ink); }

.q-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 32px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  transition: background 0.16s;
}

.q-item:hover { background: var(--paper-2); }

.q-item .n { font-family: var(--mono); font-size: 0.74rem; color: var(--ink-mute); }

.q-item .t {
  font-family: var(--serif);
  font-size: 1.22rem;
  letter-spacing: -0.01em;
}

/* ---------- Stack ---------- */

.stack-row {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}

.stack-row:first-child { border-top: 1px solid var(--ink); }

.stack-row h3 {
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}

.stack-row ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.stack-row li {
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 4px 11px;
  border: 1px solid var(--rule);
  background: var(--white);
  transition: border-color 0.16s, color 0.16s;
}

.stack-row li:hover { border-color: var(--oxblood); color: var(--oxblood); }

/* ---------- CTA ---------- */

.cta {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 44px;
  align-items: center;
  padding: 52px 44px;
  border: 1px solid var(--ink);
  background: var(--white);
}

.cta h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 400; margin-bottom: 14px; }
.cta p { color: var(--ink-soft); max-width: 46ch; }

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

footer { border-top: 1px solid var(--ink); padding: 52px 0 30px; margin-top: 70px; }

.foot-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 40px;
}

.foot-about p {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  max-width: 42ch;
}

.foot-col h4 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
  margin-bottom: 14px;
}

.foot-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.foot-col a {
  font-size: 0.93rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.foot-col a:hover { color: var(--oxblood); border-bottom-color: var(--oxblood); }

.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* ---------- Reveal ---------- */

.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero h1 { max-width: 16ch; }
  .two-col { grid-template-columns: 1fr 1fr; }
  .two-col > .spacer { display: none; }
  .sec-head { grid-template-columns: 1fr; gap: 10px; }
  .sec-head p { grid-column: 1; }
  .step { grid-template-columns: 70px 1fr; }
  .step > div:last-child { grid-column: 2; }
  .grid-ruled { grid-template-columns: repeat(2, 1fr); }
  .cta { grid-template-columns: 1fr; gap: 28px; padding: 40px 30px; }
}

@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  section { padding: 56px 0; }

  .nav-inner { flex-wrap: wrap; }
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    padding-top: 12px;
    margin-top: 12px;
    border-top: 1px solid var(--rule);
  }

  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 0.85rem; border-bottom: 1px solid var(--rule-soft); }

  .strip { grid-template-columns: 1fr 1fr; }
  .strip div { padding: 16px 16px 16px 0; border-bottom: 1px solid var(--rule); }
  .strip div:nth-child(2n) { border-right: 0; padding-left: 16px; }
  .strip div:nth-child(n+3) { border-bottom: 0; }

  .pipeline { grid-template-columns: 1fr; }
  .pipeline div { border-right: 0; border-bottom: 1px solid var(--rule); padding: 13px 0; }
  .pipeline div:not(:first-child) { padding-left: 0; }
  .pipeline div:last-child { border-bottom: 0; }

  .two-col { grid-template-columns: 1fr; gap: 26px; }
  .grid-ruled { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step-n { font-size: 1.9rem; }
  .q-item { grid-template-columns: 1fr; gap: 6px; }
  .stack-row { grid-template-columns: 1fr; gap: 14px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .foot-about { grid-column: 1 / -1; }
  .btn { flex: 1; justify-content: center; }
  .figure { margin-top: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}