/* Splitframe Studio — one-page scaffold
   System: paper white ground, ink sans display, mono for data.
   Green appears only where something won a test. Red only where something was killed. */

:root {
  --paper: #fbfaf7;
  --ink: #191817;
  --ink-soft: #5c5a54;
  --rule: #e4e1d8;
  --win: #0b7a3f;
  --win-bg: #eef6f0;
  --kill: #b3261e;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: 68rem;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.narrow { max-width: 46rem; margin-inline: auto; }
/* keep narrow sections aligned left with the rest of the page, not centered */
.section.narrow { margin-inline: 0; }

a { color: inherit; }

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

/* ---------- top bar ---------- */

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

.top-in {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1.1rem;
}

.brand {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  text-decoration: none;
}

.nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }

.nav a {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
}

.nav a:hover { color: var(--win); }

/* ---------- shared section furniture ---------- */

.section { padding-block: clamp(3.5rem, 9vw, 6.5rem); }

.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--ink);
  vertical-align: middle;
  margin-right: 0.7rem;
}

h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.4rem;
}

h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

p { color: var(--ink-soft); }

h1, h2, h3, .takeaway strong { color: var(--ink); }

.section-note {
  font-size: 0.95rem;
  max-width: 40rem;
}

/* red-pen stamp on sample blocks */
.stamp {
  display: inline-block;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kill);
  border: 1.5px solid currentColor;
  border-radius: 2px;
  padding: 0.25em 0.6em;
  transform: rotate(-2deg) translateY(-0.35em);
  margin-left: 0.5rem;
}

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

.hero { padding-block: clamp(3.5rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem); }

.hero .eyebrow { margin-bottom: 2.5rem; }

.test-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.variants { max-width: 54rem; }

.variant {
  font-weight: 700;
  font-size: clamp(1.55rem, 4.4vw, 2.9rem);
  line-height: 1.14;
  letter-spacing: -0.025em;
  margin-bottom: 0.45em;
  color: var(--ink);
}

.variant.killed { color: #a5a29a; }

.strike {
  text-decoration: line-through;
  text-decoration-color: var(--kill);
  text-decoration-thickness: 0.07em;
}

.vtag {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--kill);
  white-space: nowrap;
  margin-left: 0.8em;
  vertical-align: 0.35em;
}

.badge {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--win);
  border: 1.5px solid var(--win);
  border-radius: 999px;
  padding: 0.35em 0.85em;
  margin-left: 0.6em;
  vertical-align: 0.45em;
  white-space: nowrap;
}

.badge::before { content: "● "; font-size: 0.8em; }

.lede {
  max-width: 40rem;
  margin-top: 2.2rem;
  font-size: 1.1rem;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  flex-wrap: wrap;
  margin-top: 2.2rem;
}

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8em 1.5em;
  border-radius: 2px;
}

.btn:hover { background: var(--win); }

.ghost {
  font-size: 0.95rem;
  color: var(--ink-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.ghost:hover { color: var(--win); }

/* hero load sequence — each loser gets struck and dimmed, then the winner badge posts */
@media (prefers-reduced-motion: no-preference) {
  .killed { animation: dim 0.4s ease-out both; }
  .k1 { animation-delay: 0.5s; }
  .k2 { animation-delay: 0.95s; }
  .strike { animation: strike 0.4s ease-out both; }
  .k1 .strike { animation-delay: 0.5s; }
  .k2 .strike { animation-delay: 0.95s; }
  .vtag { animation: post 0.25s ease-out both; }
  .k1 .vtag { animation-delay: 0.8s; }
  .k2 .vtag { animation-delay: 1.25s; }
  .badge { animation: post 0.3s ease-out both; animation-delay: 1.6s; }
}

@keyframes dim {
  from { color: var(--ink); }
  to   { color: #a5a29a; }
}

@keyframes strike {
  from { text-decoration-color: transparent; }
  to   { text-decoration-color: var(--kill); }
}

@keyframes post {
  from { opacity: 0; translate: 0 0.3em; }
  to   { opacity: 1; translate: 0 0; }
}

/* ---------- steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: 2.5rem;
}

.step-no {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  border-top: 2px solid var(--ink);
  padding-top: 0.9rem;
  margin-bottom: 0.9rem;
}

.step p { font-size: 0.95rem; }

/* ---------- teardown ---------- */

.teardown {
  list-style: none;
  margin-top: 2rem;
  max-width: 46rem;
}

.teardown li {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding-block: 1.2rem;
  border-top: 1px solid var(--rule);
}

.teardown li:last-child { border-bottom: 1px solid var(--rule); }

.tag {
  flex: 0 0 4.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  text-align: center;
  padding: 0.3em 0;
  margin-top: 0.25em;
}

.teardown p { font-size: 0.98rem; }

/* ---------- readout ledger ---------- */

.table-scroll { overflow-x: auto; margin-top: 1.5rem; }

.ledger {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.ledger th {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: left;
  padding: 0 0.9rem 0.6rem 0.9rem;
  border-bottom: 2px solid var(--ink);
}

.ledger td {
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}

.ledger td.mono { font-size: 0.85rem; }

.row-win td { background: var(--win-bg); }

.row-win td:first-child { box-shadow: inset 3px 0 0 var(--win); }

.call-win { color: var(--win); font-weight: 700; }

.row-dead td { color: #a5a29a; }

.call-dead { color: var(--kill); }

.takeaway {
  margin-top: 1.5rem;
  max-width: 42rem;
  font-size: 0.98rem;
}

/* ---------- spec packs ---------- */

.packs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  margin-block: 2.2rem 1.6rem;
}

.pack {
  aspect-ratio: 4 / 5;
  border: 1.5px dashed #c9c5b9;
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-align: center;
  padding: 1rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

.pack-sub { font-size: 0.66rem; letter-spacing: 0.1em; color: #a5a29a; }

/* ---------- contact ---------- */

.mail {
  display: inline-block;
  font-weight: 700;
  font-size: clamp(1.3rem, 3.6vw, 2.1rem);
  letter-spacing: -0.02em;
  margin-top: 1.6rem;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.mail:hover { color: var(--win); }

.fine {
  margin-top: 1.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

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

.foot { border-top: 1px solid var(--rule); margin-top: clamp(2rem, 6vw, 4rem); }

.foot-in {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1.4rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

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

@media (max-width: 760px) {
  .steps, .packs { grid-template-columns: 1fr; }
  .pack { aspect-ratio: auto; padding-block: 2.5rem; }
  .vtag, .badge { display: inline-block; margin-left: 0; margin-top: 0.5em; vertical-align: baseline; }
  .variant { font-size: clamp(1.5rem, 7.5vw, 2rem); }
  .nav { gap: 1rem; }
}