/* ============================================================
   CASESTACK — case-file editorial
   Paper ground, ink text, one stamp-red accent.
   Newsreader (body serif) · Courier Prime (identifiers/metadata)
   ============================================================ */

:root {
  --paper: #f7f4ec;
  --paper-deep: #efeadd;
  --ink: #1a1812;
  --ink-soft: #4a463c;
  --rule: #c9c2af;
  --stamp: #a8231b;        /* the single accent — redaction-stamp red */
  --terminal-bg: #14130f;
  --terminal-ink: #e8e2d0;
  --serif: "Newsreader", Georgia, serif;
  --mono: "Courier Prime", "Courier New", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  /* faint paper grain */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.025 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: var(--stamp); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- file stub (header/footer band) ---------- */

.filestub {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink);
  padding: 0.6rem 1.25rem;
  max-width: 760px;
  margin: 0 auto;
}

.filestub-sep { color: var(--rule); }

.filestub-status {
  margin-left: auto;
  color: var(--stamp);
  font-weight: 700;
}

.footer {
  border-bottom: none;
  border-top: 1px solid var(--ink);
  margin-top: 4rem;
  padding-bottom: 2.5rem;
}
.footer a { color: var(--ink-soft); }

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

.hero {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding: 3.5rem 0 2.5rem;
  animation: rise 0.7s ease both;
}

.hero-photo {
  flex: 0 0 auto;
  text-align: left;
}

.hero-photo img {
  display: block;
  width: 148px;
  height: 148px;
  object-fit: cover;
  border: 1px solid var(--ink);
  filter: grayscale(35%) contrast(1.05);
  background: var(--paper-deep);
}

.photo-tag {
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  border: 1px solid var(--rule);
  border-top: none;
  padding: 0.35rem 0.4rem;
  width: 148px;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 3rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  font-style: italic;
  margin-bottom: 1.6rem;
}

.cta-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.cta-note {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}

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

.btn-primary {
  display: inline-block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper);
  background: var(--stamp);
  border: 1px solid var(--stamp);
  padding: 0.85rem 1.5rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn-primary:hover { background: var(--ink); border-color: var(--ink); }

.btn-secondary {
  display: inline-block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  padding: 0.6rem 1.1rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn-secondary:hover { background: var(--ink); color: var(--paper); }

/* ---------- exhibit / terminal ---------- */

.exhibit {
  margin: 1.5rem 0 3rem;
  animation: rise 0.7s 0.15s ease both;
}

.exhibit-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}

.section-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--stamp);
  border: 1px solid var(--stamp);
  padding: 0.15rem 0.45rem;
  white-space: nowrap;
}

.exhibit-caption {
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.terminal {
  border: 1px solid var(--ink);
  box-shadow: 5px 5px 0 var(--paper-deep), 5px 5px 0 1px var(--rule);
}

.terminal pre {
  background: var(--terminal-bg);
  color: var(--terminal-ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.6;
  padding: 1.25rem 1.4rem;
  overflow-x: auto;
}

.t-prompt { color: #7da87b; }
.t-dim { color: #8a846f; }
.t-finding { color: #e0a458; font-weight: 700; }
.t-cmd { color: #9ec5d8; }

.terminal figcaption {
  font-size: 0.95rem;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border-top: 1px solid var(--ink);
  padding: 0.9rem 1.4rem;
}

/* ---------- content blocks ---------- */

.block { padding: 2.2rem 0 0.5rem; }

h2 {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1.1rem;
}

ul.ruled { list-style: none; }

ul.ruled li {
  padding: 0.8rem 0;
  border-top: 1px solid var(--rule);
}
ul.ruled li:last-child { border-bottom: 1px solid var(--rule); }

.mono-note {
  display: block;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-top: 0.3rem;
}

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

ol.steps { list-style: none; counter-reset: none; }

ol.steps li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.8rem 0;
  border-top: 1px solid var(--rule);
}
ol.steps li:last-child { border-bottom: 1px solid var(--rule); }

.step-no {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--stamp);
  flex: 0 0 2rem;
}

/* ---------- pricing tiers ---------- */

.tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.2rem;
  margin-top: 0.5rem;
}

.tier {
  border: 1px solid var(--rule);
  padding: 1.3rem 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  background: rgba(255, 255, 255, 0.35);
}

.tier-featured {
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 var(--paper-deep), 4px 4px 0 1px var(--rule);
}

.tier h3 {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tier-price {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.1;
}

.tier-price span {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.tier p:not(.tier-price) {
  font-size: 0.95rem;
  color: var(--ink-soft);
  flex: 1;
}

.tier .btn-secondary { align-self: flex-start; }

/* ---------- about / faq ---------- */

.about p { max-width: 64ch; }

dl.faq dt {
  font-weight: 700;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule);
}

dl.faq dd {
  color: var(--ink-soft);
  padding: 0.25rem 0 0.9rem;
}
dl.faq dd:last-child { border-bottom: 1px solid var(--rule); }

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

.final-cta {
  text-align: center;
  padding: 3.5rem 0 1rem;
}

.final-line {
  font-size: 1.35rem;
  font-style: italic;
  margin-bottom: 1.4rem;
}

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

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero, .exhibit { animation: none; }
}

/* ---------- mobile ---------- */

@media (max-width: 600px) {
  body { font-size: 1.05rem; }
  .hero { flex-direction: column; gap: 1.5rem; padding-top: 2.5rem; }
  .filestub-status { margin-left: 0; width: 100%; }
  .terminal pre { font-size: 0.72rem; padding: 1rem; }
}