/* ============================================================
   w3swaps · specimen catalog
   Set in Instrument Serif (display) & JetBrains Mono (text).
   ============================================================ */

:root {
  --paper: #f1ece2;
  --paper-deep: #e8e0d0;
  --ink: #1a1612;
  --ink-soft: #3a342c;
  --ink-mute: #6b6357;
  --ink-faint: #a59b8b;
  --rule: #2a241d;
  --vermillion: #c8341f;
  --vermillion-deep: #a02616;
  --dust: #c9c0ad;

  --serif: 'Instrument Serif', 'Georgia', serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;

  --max: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

/* paper grain, fixed overlay, multiplies onto the page */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.55;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='4'/><feColorMatrix values='0 0 0 0 0.10  0 0 0 0 0.08  0 0 0 0 0.07  0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* a separate vignette of slightly darker paper at edges */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(60,40,20,0.07) 100%);
}

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

::selection { background: var(--vermillion); color: var(--paper); }

/* ===== rules ===== */
.rule { height: 1px; background: var(--rule); margin: 18px 0; }
.rule.thin { height: 1px; background: var(--ink-faint); margin: 14px 0 28px; }

/* ===== layout containers ===== */
.masthead, .specimens, .correspondence, .colophon {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.masthead { padding-top: 28px; }

/* ===== masthead ===== */
.masthead-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.masthead-meta .dot { color: var(--ink-faint); }
.masthead-meta .spacer { flex: 1; }
.masthead-meta .domain { color: var(--vermillion); font-weight: 700; }

.title-block {
  display: inline-block;
  margin: 36px 0 0;
}

.title {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(72px, 17vw, 240px);
  line-height: 0.85;
  letter-spacing: -0.02em;
  margin: 0 0 60px;
  text-align: left;
}
.title .t-w3 { font-style: normal; letter-spacing: -0.04em; }
.title .t-swaps { display: inline-block; }
.title .t-stop { color: var(--vermillion); font-style: normal; }

.standfirst {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.3;
  width: 100%;
  max-width: none;
  margin: 0 0 44px;
  color: var(--ink-soft);
}
.standfirst em { font-style: normal; color: var(--vermillion); }

.prologue {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.prologue em { font-family: var(--serif); font-style: italic; font-size: 1.1em; color: var(--ink); }

.dropcap {
  font-family: var(--serif);
  font-style: italic;
  font-size: 4.2em;
  line-height: 0.85;
  float: left;
  margin: 0.05em 0.08em -0.05em 0;
  color: var(--vermillion);
}

@media (max-width: 720px) {
  .prologue { grid-template-columns: 1fr; gap: 22px; }
}

/* ===== section headers ===== */
.specimens, .correspondence { padding-top: 32px; padding-bottom: 60px; }
.correspondence { padding-top: 60px; }

.section-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: baseline;
}
.section-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--vermillion);
}
.section-head h2 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
  margin: 0;
  letter-spacing: -0.01em;
}
.section-head h2 .t-stop { color: var(--vermillion); font-style: normal; }
.section-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

@media (max-width: 640px) {
  .section-head { grid-template-columns: auto 1fr; }
  .section-meta { grid-column: 1 / -1; }
}

/* ===== specimen grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

.loading {
  grid-column: 1 / -1;
  padding: 60px 24px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ===== specimen card ===== */
.card {
  position: relative;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  aspect-ratio: 4 / 5;
  perspective: 1400px;
  background: var(--paper);
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px);
  animation: card-arrive 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes card-arrive {
  to { opacity: 1; transform: translateY(0); }
}

.card-inner {
  position: absolute;
  inset: 0;
  transition: transform 0.75s cubic-bezier(0.65, 0.05, 0.35, 1);
  transform-style: preserve-3d;
}

.card:hover .card-inner,
.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
}

.card-front { background: var(--paper); }
.card-back  { background: #1a1612; transform: rotateY(180deg); padding: 0; overflow: hidden; }

/* card top row: number + status stamp */
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: auto;
}
.specimen-no {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* status stamps */
.stamp {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 4px 8px 3px;
  border: 1.5px solid var(--vermillion);
  color: var(--vermillion);
  white-space: nowrap;
  transform: rotate(-3deg);
  transform-origin: top right;
  filter: url(#ink-bleed);
}
.stamp.production {
  background: var(--vermillion);
  color: var(--paper);
  border-color: var(--vermillion);
}
.stamp.production::before { content: '★ '; letter-spacing: 0.05em; }
.stamp.live      { /* default */ }
.stamp.demo      { color: var(--ink); border-color: var(--ink); }
.stamp.retired   {
  color: var(--ink-mute);
  border-color: var(--ink-mute);
  border-style: dashed;
  transform: rotate(-6deg);
}

/* card name */
.card-name {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 0.95;
  letter-spacing: -0.015em;
  margin: 12px 0 8px;
  color: var(--ink);
}
.card-name .t-stop { color: var(--vermillion); font-style: normal; }

.card-divider {
  font-family: var(--mono);
  color: var(--ink-faint);
  letter-spacing: 0.4em;
  font-size: 10px;
  margin: 0 0 12px;
}

.card-desc {
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  flex: 1;
  margin: 0 0 14px;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.card-foot .view { color: var(--vermillion); }

/* card back */
.card-back-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: contrast(1.05) saturate(0.92);
}
.card-back-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.card-back-strip {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  background: linear-gradient(to top, rgba(20,16,12,0.92) 60%, rgba(20,16,12,0));
  color: var(--paper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.card-back-strip .visit { color: #f7c8b8; }

/* feature card (production) */
.card.feature .card-front {
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(200,52,31,0.05) 14px 15px),
    var(--paper);
}
.card.feature .card-name { color: var(--vermillion-deep); }

/* retired grid styling */
.retired-grid .card {
  aspect-ratio: 5 / 3;
  filter: grayscale(0.4);
}
.retired-grid .card-name { font-size: clamp(22px, 2.4vw, 30px); color: var(--ink-mute); }
.retired-grid .card-desc { color: var(--ink-mute); }
.retired-grid .card:hover .card-inner { transform: none; }
.retired-grid .card { cursor: default; }

/* deceased stamp overlay for retired */
.deceased {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-8deg);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.3em;
  color: var(--vermillion);
  border: 3px double var(--vermillion);
  padding: 8px 18px;
  opacity: 0.55;
  pointer-events: none;
  filter: url(#ink-bleed);
}

/* ===== contact / submission slip ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 860px) { .contact-wrap { grid-template-columns: 1fr; gap: 32px; } }

.contact-blurb {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink-soft);
}
.contact-blurb p { margin: 0 0 18px; }
.contact-blurb .muted { font-family: var(--mono); font-style: normal; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); }

.slip {
  position: relative;
  background:
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(26,22,18,0.06) 31px 32px),
    #f7f1e3;
  border: 1px solid var(--ink);
  padding: 0;
  box-shadow: 6px 6px 0 var(--ink);
}

.slip-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.slip-row {
  display: block;
  border-bottom: 1px solid var(--ink-faint);
  padding: 10px 18px 6px;
}
.slip-row.tall textarea { min-height: 110px; }
.slip-label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 4px;
}
.slip-label .opt { font-style: italic; text-transform: none; letter-spacing: 0.05em; color: var(--ink-faint); }

.slip input,
.slip textarea {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
  padding: 4px 0 6px;
  font-family: var(--serif);
  font-size: 22px;
  color: var(--ink);
  resize: vertical;
}
.slip input:focus,
.slip textarea:focus { background: rgba(200,52,31,0.06); }

.slip-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  gap: 12px;
}
.slip-stamp {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vermillion);
  border: 1.5px solid var(--vermillion);
  padding: 4px 8px;
  transform: rotate(-2deg);
  filter: url(#ink-bleed);
}
.slip button {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--paper);
  border: 0;
  padding: 12px 22px;
  cursor: pointer;
  transition: background 0.15s;
}
.slip button:hover { background: var(--vermillion); }

.slip-status {
  margin: 0;
  padding: 0 18px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--vermillion);
  min-height: 16px;
}
.slip-status.ok { color: var(--ink-soft); }

/* ===== colophon ===== */
.colophon { padding-top: 32px; padding-bottom: 36px; color: var(--ink-soft); }
.colo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  margin: 18px 0 22px;
}
.colo-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 4px;
}
.colo-right { text-align: right; }
.colo-bottom {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
@media (max-width: 640px) {
  .colo-grid { grid-template-columns: 1fr; }
  .colo-right { text-align: left; }
  .colo-bottom { flex-direction: column; gap: 8px; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .card { animation: none; opacity: 1; transform: none; }
  .card-inner { transition: none; }
  .card:hover .card-inner { transform: none; }
}