/* Revisa landing: paper ledger, ink, one diff-green accent.
   Semantic reds and ambers live only inside code artifacts. */

/* Self-hosted latin subsets of the Google Fonts families, variable weight. */
@font-face {
  font-family: "Martian Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/martian-mono-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/instrument-sans-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/geist-mono-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --paper: #faf9f7;
  --card: #ffffff;
  --ink: #191917;
  --ink-soft: #55534c;
  --ink-faint: #8a877e;
  --rule: #e5e2db;
  --rule-strong: #cfccc2;
  --green: #1e7a41;
  --green-deep: #14602f;
  --green-tint: #e9f4ec;
  --add: #1a7f37;
  --del: #b31d28;

  --font-display: "Martian Mono", ui-monospace, monospace;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;

  --measure: 40rem;
  --content: 68rem;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--green-tint);
}

a {
  color: inherit;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font: 500 0.85rem var(--font-mono);
  transition: top 150ms ease;
}

.skip:focus {
  top: 1rem;
}

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

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.nav {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.wordmark {
  font: 700 1.05rem var(--font-display);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark-cursor {
  display: inline-block;
  width: 0.5em;
  height: 0.95em;
  margin-left: 0.14em;
  background: var(--green);
  translate: 0 0.12em;
  animation: blink 1.2s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.nav-links {
  display: flex;
  gap: 1.4rem;
  margin-left: auto;
}

.nav-links a {
  font: 500 0.82rem var(--font-mono);
  color: var(--ink-soft);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--green-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: 500 0.85rem/1 var(--font-mono);
  letter-spacing: 0.01em;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.85rem 1.35rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, translate 120ms ease;
}

.btn-primary {
  background: var(--green);
  color: #fff;
}

.btn-primary:hover {
  background: var(--green-deep);
  translate: 0 -1px;
}

.btn-primary:active {
  translate: 0 0;
}

.btn-sm {
  padding: 0.6rem 0.95rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 1rem 1.8rem;
  font-size: 0.95rem;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  max-width: var(--content);
  margin: 0 auto;
  padding: 6.5rem 1.5rem 7rem;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 6fr);
  gap: 4rem;
  align-items: center;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(25, 25, 23, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 25, 23, 0.045) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: linear-gradient(to left, #000 25%, transparent 72%);
  mask-image: linear-gradient(to left, #000 25%, transparent 72%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
}

.eyebrow {
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 1.6rem;
}

h1 {
  font: 700 clamp(1.7rem, 1.05rem + 2.5vw, 2.7rem)/1.2 var(--font-display);
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem;
  text-wrap: balance;
}

.lede {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 34em;
  margin: 0 0 2.2rem;
}

.start-form {
  display: flex;
  gap: 0.6rem;
  max-width: 32rem;
}

.url-input {
  flex: 1;
  min-width: 0;
  font: 400 0.9rem var(--font-mono);
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: 8px;
  padding: 0.85rem 1rem;
}

.url-input::placeholder {
  color: var(--ink-faint);
}

.url-input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(30, 122, 65, 0.16);
}

.form-note {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0.9rem 0 0;
}

/* ---------- review artifact ---------- */

.hero-artifact {
  position: relative;
}

.artifact {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.15rem 1.25rem 1rem;
  box-shadow:
    0 1px 2px rgba(25, 25, 23, 0.05),
    0 18px 44px -20px rgba(25, 25, 23, 0.18);
}

.artifact-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.artifact-id {
  font: 500 0.78rem var(--font-mono);
  color: var(--ink-soft);
  margin-right: auto;
}

.chip {
  font: 500 0.68rem/1 var(--font-mono);
  border-radius: 999px;
  padding: 0.32rem 0.6rem;
  background: #f1efe9;
  color: var(--ink-soft);
  white-space: nowrap;
}

.chip-status[data-status="queued"] {
  background: #f4f4f5;
  color: #52525b;
}

.chip-status[data-status="running"] {
  background: #dbeafe;
  color: #1e40af;
}

.chip-status[data-status="running"]::before {
  content: "";
  display: inline-block;
  width: 0.4em;
  height: 0.4em;
  border-radius: 999px;
  background: currentColor;
  margin-right: 0.45em;
  vertical-align: 0.05em;
  animation: pulse 1.1s ease-in-out infinite;
}

.chip-status[data-status="completed"] {
  background: #d1fae5;
  color: #065f46;
}

@keyframes pulse {
  50% {
    opacity: 0.35;
  }
}

.artifact-repo {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0.95rem 0 0;
}

.repo-name {
  font: 600 0.95rem var(--font-mono);
}

.diffstat {
  font: 400 0.78rem var(--font-mono);
}

.diffstat .add {
  color: var(--add);
}

.diffstat .del {
  color: var(--del);
}

.artifact-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem 1.5rem;
  margin: 1rem 0 0;
  padding: 0.85rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.artifact-stats dt {
  font: 400 0.62rem var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  white-space: nowrap;
}

.artifact-stats dd {
  margin: 0.2rem 0 0;
  font: 600 1.05rem var(--font-display);
}

.findings-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0.4rem 0 0.2rem;
}

.findings-head h3 {
  font: 600 0.95rem var(--font-body);
  margin: 0;
}

.findings-tally {
  font: 400 0.68rem var(--font-mono);
  color: var(--ink-soft);
  text-align: right;
}

.findings {
  list-style: none;
  margin: 0;
  padding: 0;
}

.finding {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--rule);
}

.finding:last-child {
  border-bottom: none;
}

.finding-loc {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
}

.finding-loc code {
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.finding-title {
  position: relative;
  margin: 0.25rem 0 0 0;
  padding-left: 0.1rem;
  font-size: 0.86rem;
  font-weight: 500;
  width: fit-content;
}

.sev {
  display: inline-block;
  min-width: 3.9rem;
  text-align: center;
  font: 600 0.62rem/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 4px;
  padding: 0.28rem 0.3rem;
}

.sev-critical {
  background: #dc2626;
  color: #fff;
}

.sev-high {
  background: #f97316;
  color: #fff;
}

.sev-medium {
  background: #fbbf24;
  color: #3f3f46;
}

.sev-low {
  background: #d4d4d8;
  color: #27272a;
}

.finding-dropped .sev {
  opacity: 0.45;
}

.finding-dropped .finding-loc code {
  text-decoration: line-through;
  text-decoration-color: var(--rule-strong);
}

.finding-dropped .finding-title {
  color: var(--ink-faint);
}

.finding-dropped .finding-title::after {
  content: "";
  position: absolute;
  left: -0.15em;
  top: 52%;
  height: 0.1em;
  background: var(--del);
  width: 0;
  transition: width 380ms ease;
}

.finding-dropped.rejected .finding-title::after {
  width: calc(100% + 0.3em);
}

.drop-tag {
  visibility: hidden;
  margin: 0.3rem 0 0 0.1rem;
  font: 400 0.66rem var(--font-mono);
  color: var(--del);
}

.finding-dropped.rejected .drop-tag {
  visibility: visible;
}

.artifact-foot {
  margin: 0.8rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--rule);
  font: 400 0.68rem var(--font-mono);
  color: var(--ink-faint);
}

/* hero artifact load sequence; static and final without JS */

.js [data-step] {
  opacity: 0;
  translate: 0 5px;
  transition: opacity 300ms ease, translate 300ms ease;
}

.js [data-step].in {
  opacity: 1;
  translate: 0 0;
}

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

.section {
  max-width: var(--content);
  margin: 0 auto;
  padding: 5.5rem 1.5rem 6rem;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 4.5rem;
}

.section-label {
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-deep);
  margin: 0 0 1.1rem;
}

h2 {
  font: 600 clamp(1.35rem, 1rem + 1.8vw, 2rem)/1.25 var(--font-display);
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  max-width: 26em;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: var(--measure);
  margin: 0;
}

.section-head {
  margin-bottom: 3rem;
}

/* ---------- pipeline ---------- */

.pipeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem 4rem;
}

.phase-name {
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 0.9rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
}

.phase-reason {
  color: var(--green-deep);
  border-bottom-color: var(--green);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.step {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  gap: 0.4rem 1rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}

.step:last-child {
  border-bottom: none;
}

.step-num {
  font: 600 0.95rem var(--font-display);
  color: var(--ink-faint);
}

.step-body h4 {
  font: 600 0.95rem var(--font-body);
  margin: 0 0 0.15rem;
}

.step-body p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
  max-width: 26em;
}

.step-model .step-num {
  color: var(--green-deep);
}

.step-model .step-body h4 {
  color: var(--green-deep);
}

.tag {
  font: 500 0.64rem/1 var(--font-mono);
  letter-spacing: 0.06em;
  border: 1px solid var(--rule-strong);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 0.3rem 0.55rem;
  white-space: nowrap;
}

.tag-model {
  border-color: var(--green);
  color: var(--green-deep);
  background: var(--green-tint);
}

/* ---------- division of labor ---------- */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4rem;
}

.split-col h3 {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font: 600 1.15rem var(--font-body);
  margin: 0;
}

.split-sub {
  font: 400 0.72rem var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0.4rem 0 1rem;
}

.split-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.split-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.split-list li::before {
  content: "–";
  color: var(--green);
  margin-right: 0.7rem;
}

.split-verdict {
  margin: 2.5rem 0 0;
  font: 600 0.85rem var(--font-mono);
  color: var(--green-deep);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem 3rem;
  margin: 3.5rem 0 0;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
}

.fact dt {
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.fact dt::before {
  content: "+ ";
  color: var(--green);
}

.fact dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- cli ---------- */

.cli-wrap {
  max-width: 46rem;
}

.terminal {
  margin: 0;
  background: #1c1c1a;
  color: #e8e6df;
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  overflow-x: auto;
  box-shadow: 0 18px 40px -24px rgba(25, 25, 23, 0.5);
}

.terminal code {
  font-size: 0.8rem;
  line-height: 1.75;
  white-space: pre;
}

.t-dim {
  color: #a8a599;
}

.t-crit {
  color: #f87171;
  font-weight: 600;
}

.t-high {
  color: #fbbf24;
  font-weight: 600;
}

.t-low {
  color: #d4d4d8;
  font-weight: 600;
}

.cli-agents {
  margin: 1.4rem 0 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.cli-agents code {
  background: var(--green-tint);
  color: var(--green-deep);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.82em;
}

/* ---------- cta ---------- */

.cta {
  border-top: 1px solid var(--rule);
  text-align: center;
  padding: 6.5rem 1.5rem 7rem;
}

.cta h2 {
  max-width: none;
  margin-bottom: 0.8rem;
}

.cta p {
  margin: 0 0 2.2rem;
  color: var(--ink-soft);
}

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

.site-footer {
  border-top: 1px solid var(--rule);
}

.footer-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-tag {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
  max-width: 30em;
}

.footer-links {
  display: flex;
  gap: 1.4rem;
  margin-left: auto;
}

.footer-links a {
  font: 500 0.78rem var(--font-mono);
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--green-deep);
}

.footer-fine {
  margin: 0;
  font: 400 0.72rem var(--font-mono);
  color: var(--ink-faint);
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 3.5rem;
    padding-top: 4.5rem;
    padding-bottom: 5rem;
  }

  .hero-grid {
    -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent 85%);
    mask-image: linear-gradient(to bottom, #000 30%, transparent 85%);
  }

  .hero-artifact {
    max-width: 34rem;
  }

  .pipeline {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .facts {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 560px) {
  .start-form {
    flex-direction: column;
  }

  .step {
    grid-template-columns: 2.4rem 1fr;
  }

  .step .tag {
    grid-column: 2;
    justify-self: start;
  }
}

/* ---------- reduced motion ---------- */

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

  .wordmark-cursor {
    animation: none;
  }

  .chip-status[data-status="running"]::before {
    animation: none;
  }

  .js [data-step] {
    transition: none;
  }

  .finding-dropped.rejected .finding-title::after {
    transition: none;
  }

  .btn,
  .btn-primary {
    transition: none;
    translate: none;
  }
}