/* ============================================================
   TenantTrace — site styles

   The palette is the product: tenant A is cool slate, tenant B is
   warm amber, and the only place those two colours meet on this page
   is the canary inside the proof panel. That collision is the bug the
   tool exists to find, so everything else stays quiet.
   ============================================================ */

:root {
  --ink:        #0f1419;
  --ink-raised: #161d25;
  --ink-line:   #232c37;

  --tenant-a:   #7ba7db;   /* the caller  */
  --tenant-b:   #e0a458;   /* the foreign data */
  --seal:       #4f9b7e;   /* enforced / passing */

  --bone:       #e9e7e2;
  --muted:      #8695a4;
  --dim:        #5d6b78;

  --display: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --wrap: 1120px;
  --r: 4px;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.skip {
  position: absolute; left: -9999px;
  background: var(--tenant-a); color: var(--ink);
  padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

:focus-visible {
  outline: 2px solid var(--tenant-a);
  outline-offset: 3px;
}

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 1.5rem; }
.wrap.narrow { max-width: 760px; }

/* ─────────────────────────────── nav ─────────────────────────────── */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  max-width: var(--wrap); margin-inline: auto;
  padding: 1.4rem 1.5rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font-weight: 800; letter-spacing: -.02em; font-size: 1.05rem;
  text-decoration: none;
}
.brand-mark {
  width: 11px; height: 11px; flex: none;
  background: var(--tenant-a);
  box-shadow: 5px 0 0 var(--tenant-b);
}
.nav nav { display: flex; align-items: center; gap: 1.6rem; }
.nav nav a {
  font-family: var(--mono);
  font-size: .78rem; letter-spacing: .02em;
  color: var(--muted); text-decoration: none;
  transition: color .15s;
}
.nav nav a:hover { color: var(--bone); }
.nav-gh {
  border: 1px solid var(--ink-line);
  padding: .4rem .8rem; border-radius: var(--r);
}
@media (max-width: 720px) {
  .nav nav a:not(.nav-gh) { display: none; }
}

/* ─────────────────────────────── hero ─────────────────────────────── */
.hero {
  max-width: var(--wrap); margin-inline: auto;
  padding: 3rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 3.5rem; align-items: center;
}
@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; gap: 2.5rem; padding-top: 1rem; }
}

.hero-copy { min-width: 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 1.5rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 6.2vw, 4.15rem);
  line-height: 1.02;
  letter-spacing: -.035em;
  font-weight: 800;
  margin: 0 0 1.5rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--tenant-b);
}
.lede {
  font-size: 1.06rem; color: var(--muted);
  max-width: 46ch; margin: 0 0 2rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; }
.btn {
  display: inline-block;
  font-family: var(--mono); font-size: .82rem;
  padding: .72rem 1.35rem;
  border: 1px solid var(--ink-line); border-radius: var(--r);
  color: var(--bone); text-decoration: none;
  transition: border-color .15s, background .15s, color .15s;
}
.btn:hover { border-color: var(--muted); }
.btn-primary {
  background: var(--tenant-a); border-color: var(--tenant-a);
  color: var(--ink); font-weight: 700;
}
.btn-primary:hover { background: #96b9e4; border-color: #96b9e4; }

/* ───────────────────── signature: the proof panel ───────────────────── */
.proof {
  margin: 0;
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,.9);
}
.proof-head {
  display: flex; align-items: center; gap: .6rem;
  padding: .8rem 1.1rem;
  border-bottom: 1px solid var(--ink-line);
  font-family: var(--mono); font-size: .74rem;
  letter-spacing: .04em;
}
.proof-head .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--tenant-b); flex: none;
}
.proof-title { color: var(--tenant-b); text-transform: uppercase; }
.proof-tag { margin-left: auto; color: var(--dim); }

.proof-body {
  padding: 1.1rem 1.2rem 1.3rem;
  font-family: var(--mono);
  font-size: .82rem;
  line-height: 1.85;
}
.proof-body .line {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  opacity: 0;
  animation: reveal .32s ease forwards;
  animation-delay: calc(var(--i) * .13s + .2s);
}
@keyframes reveal {
  from { opacity: 0; transform: translateY(3px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .proof-body .line { opacity: 1; animation: none; }
}

.c-a { color: var(--tenant-a); }
.c-b { color: var(--tenant-b); }
.verb { color: var(--seal); font-weight: 700; }
.id { color: var(--dim); }

.proof-body .rule {
  display: flex; justify-content: space-between;
  color: var(--dim);
  border-block: 1px solid var(--ink-line);
  margin-block: .55rem; padding-block: .3rem;
  font-size: .72rem; letter-spacing: .1em; text-transform: uppercase;
}
.proof-body .status { color: var(--seal); }

.proof-body .leak {
  background: rgba(224,164,88,.09);
  border-left: 2px solid var(--tenant-b);
  margin-inline: -1.2rem; padding-inline: calc(1.2rem - 2px) 1.2rem;
}
.canary {
  color: var(--tenant-b); font-weight: 700;
  background: rgba(224,164,88,.14);
  padding: 0 .2em; border-radius: 2px;
}
.proof-body .verdict {
  margin-top: .9rem; padding-top: .8rem;
  border-top: 1px solid var(--ink-line);
  color: var(--muted); font-size: .78rem;
}

/* ─────────────────────────────── bands ─────────────────────────────── */
.band { padding: 5rem 0; border-top: 1px solid var(--ink-line); }
.band.alt { background: #121821; }

.section-h {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -.025em; font-weight: 800;
  margin: 0 0 .6rem;
}
.section-sub {
  color: var(--muted); max-width: 60ch; margin: 0 0 2.5rem;
}
.section-h + .cols, .section-h + .steps, .section-h + .table-scroll { margin-top: 2.5rem; }

.cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem;
}
@media (max-width: 860px) { .cols { grid-template-columns: 1fr; gap: 2rem; } }
.cols h3 {
  font-size: .95rem; margin: 0 0 .6rem;
  letter-spacing: -.01em;
}
.cols p { margin: 0; color: var(--muted); font-size: .94rem; }

/* ─────────────────────────────── steps ─────────────────────────────── */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
  counter-reset: none;
}
@media (max-width: 940px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

.steps li {
  border-top: 1px solid var(--ink-line);
  padding-top: 1rem;
}
.step-n {
  font-family: var(--mono); font-size: .72rem;
  color: var(--tenant-a); letter-spacing: .1em;
}
.steps h3 {
  font-size: .95rem; margin: .5rem 0 .5rem;
  letter-spacing: -.01em;
}
.steps p { margin: 0; color: var(--muted); font-size: .9rem; }

/* ─────────────────────────────── matrix ─────────────────────────────── */
.table-scroll { overflow-x: auto; }
.matrix {
  width: 100%; border-collapse: collapse;
  font-size: .9rem; min-width: 640px;
}
.matrix th, .matrix td {
  text-align: left; padding: .85rem 1rem .85rem 0;
  border-bottom: 1px solid var(--ink-line);
  vertical-align: top;
}
.matrix thead th {
  font-family: var(--mono); font-weight: 500;
  font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim);
  border-bottom-color: var(--muted);
}
.matrix td:nth-child(2) { color: var(--muted); }
.matrix td.mono { font-family: var(--mono); font-size: .76rem; color: var(--dim); }

.pill {
  display: inline-block;
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .06em;
  padding: .18rem .5rem; border-radius: 2px;
  border: 1px solid currentColor;
}
.pill-dyn  { color: var(--tenant-a); }
.pill-stat { color: var(--dim); }

.note {
  margin-top: 2rem; color: var(--muted);
  font-size: .88rem; max-width: 68ch;
}

/* ─────────────────────────────── code ─────────────────────────────── */
.mini {
  font-family: var(--mono); font-size: .74rem;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim); font-weight: 500;
  margin: 2.5rem 0 .8rem;
}
.code {
  background: var(--ink); border: 1px solid var(--ink-line);
  border-radius: var(--r);
  padding: 1.1rem 1.2rem; margin: 0;
  overflow-x: auto;
}
.code code {
  font-family: var(--mono); font-size: .82rem;
  line-height: 1.85; color: var(--bone);
}
.code .cm { color: var(--dim); }
.code .k  { color: var(--tenant-a); }

/* ─────────────────────────────── limits ─────────────────────────────── */
.limits { background: #121821; }
.limits-list { list-style: none; margin: 0; padding: 0; }
.limits-list li {
  border-top: 1px solid var(--ink-line);
  padding: 1.1rem 0;
  color: var(--muted); font-size: .95rem;
}
.limits-list strong { color: var(--bone); font-weight: 600; }

/* ─────────────────────────────── footer ─────────────────────────────── */
.foot {
  border-top: 1px solid var(--ink-line);
  padding: 2.2rem 0;
  font-family: var(--mono); font-size: .74rem;
  color: var(--dim);
}
.foot-inner {
  display: flex; flex-wrap: wrap; gap: 1rem;
  align-items: center; justify-content: space-between;
}
.foot-links { display: flex; gap: 1.4rem; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { color: var(--bone); }


/* ── Example reports ────────────────────────────────────────────────────
   The strongest thing this project can show a visitor is its own output, so
   it gets a section rather than a sentence. Two cards, colour-coded by the
   answer each report gives — the whole pitch is that those two answers look
   different and are both trustworthy. */
.report-cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  margin-top: 2rem;
}
.report-card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.5rem 1.6rem 1.4rem;
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  border-top: 2px solid var(--dim);
  border-radius: var(--r);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s ease, transform .15s ease;
}
.report-card:hover,
.report-card:focus-visible { transform: translateY(-2px); }
.report-card h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -.01em;
}
.report-card p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.6; }
.report-tag {
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.report-go {
  margin-top: .35rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--bone);
}
.report-card.leaking { border-top-color: var(--tenant-b); }
.report-card.leaking .report-tag { color: var(--tenant-b); }
.report-card.leaking:hover { border-color: var(--tenant-b); }
.report-card.clean { border-top-color: var(--seal); }
.report-card.clean .report-tag { color: var(--seal); }
.report-card.clean:hover { border-color: var(--seal); }

@media (prefers-reduced-motion: reduce) {
  .report-card:hover, .report-card:focus-visible { transform: none; }
}