:root {
  --shaft: #16191f;
  --enamel: #3d6ba8;
  --plaster: #c8d2dc;
  --pane: #dce4ec;
  --ink: #16191f;
  --mute: #4b5560;
  --rule: #9aa8b6;
  --radius: 15px;
  --read: 38rem;
  --span: 72rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--plaster);
  background-image:
    repeating-linear-gradient(
      to right,
      transparent,
      transparent 72px,
      rgba(22, 25, 31, 0.05) 72px,
      rgba(22, 25, 31, 0.05) 73px
    ),
    repeating-linear-gradient(
      to bottom,
      transparent,
      transparent 56px,
      rgba(61, 107, 168, 0.07) 56px,
      rgba(61, 107, 168, 0.07) 57px
    );
  font-family: "Atkinson Hyperlegible", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--enamel);
  text-underline-offset: 0.16em;
}

a:hover { color: #2a4f80; }

h1, h2, h3 {
  font-family: "DM Serif Display", Georgia, serif;
  font-weight: 400;
  line-height: 1.2;
  color: var(--shaft);
}

h1 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); margin: 0 0 1rem; }
h2 { font-size: 1.42rem; margin: 0 0 0.65rem; }
h3 { font-size: 1.16rem; margin: 0 0 0.3rem; }

p { margin: 0 0 1rem; }

.skip-jump {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--pane);
  padding: 0.4rem 0.7rem;
}

.skip-jump:focus { left: 0.5rem; z-index: 8; }

.shaft {
  background: var(--shaft);
  color: var(--plaster);
  position: static;
}

.shaft-enamel {
  height: 5px;
  background: var(--enamel);
}

.shaft-row {
  max-width: var(--span);
  margin: 0 auto;
  padding: 0.9rem 1.2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--plaster);
  text-decoration: none;
  min-width: 0;
}

.mark img {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  background: var(--plaster);
}

.mark strong {
  display: block;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.05rem;
  font-weight: 400;
}

.mark em {
  display: block;
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9bb4d4;
}

.shaft-links {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.shaft-links a {
  color: var(--plaster);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 0.12rem;
}

.shaft-links a:hover,
.shaft-links a[data-current="yes"] {
  border-bottom-color: var(--enamel);
  color: #c5d6ea;
}

.shaft-toggle {
  display: none;
  background: transparent;
  color: var(--enamel);
  border: 1px solid var(--enamel);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  font: inherit;
  cursor: pointer;
}

.shaft,
.tray {
  grid-column: 1 / -1;
}

.slot-rail {
  grid-column: 2;
  grid-row: 2;
  border-left: 1px solid var(--rule);
  color: var(--mute);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 1.4rem 0;
}

main {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
}

.face-stack {
  display: block;
}

.bank,
.plates,
.callwalk,
.comb,
.desk,
.reading {
  max-width: var(--span);
  margin: 0 auto;
  padding: 2.3rem 1.2rem;
}

.bank {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
  gap: 2.2rem;
  align-items: center;
  padding-top: 3rem;
}

.bank-brand {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--enamel);
  margin-bottom: 0.5rem;
}

.bank-lead { max-width: 40rem; }

.bank-visual {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  justify-content: flex-end;
}

.mailbox-grid {
  width: min(100%, 230px);
  height: auto;
}

.flap-nod {
  transform-origin: 110px 84px;
  animation: flap-nod 0.9s ease 0.2s 1 both;
}

@keyframes flap-nod {
  0% { transform: rotateX(70deg); }
  70% { transform: rotateX(-8deg); }
  100% { transform: rotateX(0deg); }
}

.bank-ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

.enamel {
  display: inline-block;
  background: var(--enamel);
  color: #f4f7fb;
  text-decoration: none;
  border: 1px solid var(--enamel);
  border-radius: var(--radius);
  padding: 0.64rem 1.1rem;
  font-weight: 700;
}

.enamel:hover {
  background: #2f5688;
  color: #f4f7fb;
}

.enamel-ghost {
  background: transparent;
  color: var(--shaft);
  border-color: var(--shaft);
}

.enamel-ghost:hover {
  background: var(--shaft);
  color: var(--plaster);
}

button.enamel {
  font: inherit;
  cursor: pointer;
}

.slotnote {
  max-width: var(--read);
  margin: 0 auto;
  padding: 1.5rem 1.2rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.band-lead { max-width: 40rem; }

.split-bank,
.pair-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 2rem;
}

.line-kicker,
.rail-kicker {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--enamel);
  margin-bottom: 0.55rem;
}

.slot-plate {
  border-top: 10px solid var(--shaft);
  padding: 0.85rem 0.15rem 1rem;
  background: var(--pane);
  box-shadow: none;
  position: relative;
}

.slot-plate::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 1rem;
  width: 2.2rem;
  height: 4px;
  background: var(--enamel);
}

.slot-plate:hover { transform: translateY(-1px); }

.slot-tick {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 0.2rem;
}

.call-list {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
}

.call-list li { margin-bottom: 0.4rem; }

.desk {
  background: var(--pane);
  border-top: 5px solid var(--enamel);
}

.reading { max-width: var(--read); }

.lead-line { font-size: 1.08rem; }

.link-list { padding-left: 1.1rem; }
.link-list li { margin-bottom: 0.4rem; }

.field-grid { margin: 0 0 1.3rem; }

.field-grid div {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0.55rem;
  padding: 0.62rem 0;
  border-top: 1px solid var(--rule);
}

.field-grid dt {
  font-weight: 700;
  color: var(--mute);
}

.field-grid dd { margin: 0; }

.ask-block {
  padding: 0.85rem 0;
  border-top: 1px solid var(--rule);
}

.desk-form {
  display: grid;
  gap: 0.75rem;
  margin: 1.2rem 0;
}

.desk-form label {
  display: grid;
  gap: 0.3rem;
  font-weight: 700;
}

.desk-form input,
.desk-form textarea {
  font: inherit;
  border: 1px solid var(--shaft);
  border-radius: 3px;
  padding: 0.55rem 0.7rem;
  background: #eef3f7;
}

.small-copy,
.ink-link { font-size: 0.95rem; }

.tray {
  background: var(--shaft);
  color: var(--plaster);
  margin-top: 1.4rem;
}

.tray a { color: #9bb4d4; }

.tray-slot {
  height: 8px;
  background:
    repeating-linear-gradient(
      to right,
      var(--enamel) 0 28px,
      var(--shaft) 28px 36px
    );
}

.tray-upper,
.tray-lower {
  max-width: var(--span);
  margin: 0 auto;
  padding: 1.3rem 1.2rem;
}

.tray-upper { border-bottom: 1px solid #2c333c; }

.tray-name {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.tray-line { color: #c5d0da; }

.tray-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.05rem;
  margin: 0 0 0.8rem;
}

.tray-warn {
  color: #b7c2cc;
  font-size: 0.94rem;
}

.tray-copy {
  margin: 0;
  color: #88939e;
  font-size: 0.86rem;
}

@media (prefers-reduced-motion: reduce) {
  .flap-nod { animation: none; }
  .slot-plate:hover { transform: none; }
}

@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .slot-rail { display: none; }
  main { grid-column: 1; grid-row: auto; }

  .bank,
  .split-bank,
  .pair-row {
    grid-template-columns: 1fr;
  }

  .shaft-row {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .shaft-toggle { display: inline-block; }

  .shaft-links {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    gap: 0.4rem;
    padding-top: 0.55rem;
  }

  .shaft-links.links-open { display: flex; }

  .field-grid div { grid-template-columns: 1fr; }

  .bank-visual { justify-content: flex-start; }
}

@media (max-width: 520px) {
  body { overflow-x: hidden; }

  .mark strong { font-size: 0.92rem; }

  .shaft-row,
  .bank,
  .plates,
  .reading,
  .desk {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}