/* ============================================================
   Pigeonhole — a postal sorting office for the team's task inbox
   ============================================================ */

@font-face {
  font-family: "Oswald";
  src: url("assets/oswald.ttf") format("truetype");
  font-weight: 200 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Literata";
  src: url("assets/literata.ttf") format("truetype");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Palette — kraft paper, ink, and rubber-stamp colors */
  --canvas: #e9dfc4;
  --canvas-grain: #ddcfa8;
  --surface: #faf5e6;
  --surface-raised: #fffdf6;
  --shelf: #d8c79c;
  --shelf-dark: #c3b083;
  --ink: #2a2018;
  --ink-soft: #4a3d2c;
  --ink-muted: #766448;
  --line: #c6b483;
  --line-soft: #d9c99b;
  --accent: #1f6f5c;
  --accent-dark: #16513f;
  --on-accent: #f7f2e0;
  --focus: #b7402a;

  --status-todo: #33547a;
  --status-progress: #a5680f;
  --status-blocked: #9c3b3b;
  --status-done: #1f6f5c;

  --sp-4: 4px;
  --sp-8: 8px;
  --sp-12: 12px;
  --sp-16: 16px;
  --sp-24: 24px;
  --sp-32: 32px;
  --sp-48: 48px;
  --sp-64: 64px;
  --sp-96: 96px;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Literata", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --radius-card: 3px;
  --radius-pill: 999px;

  color-scheme: light;
}

@media (prefers-reduced-motion: no-preference) {
  :root { --motion-ok: 1; }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--canvas);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(42, 32, 24, 0.07) 1px, transparent 0);
  background-size: 22px 22px;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--accent-dark); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface-raised);
  color: var(--ink);
  padding: var(--sp-12) var(--sp-16);
  z-index: 200;
  border: 2px solid var(--focus);
  font-family: var(--font-mono);
}
.skip-link:focus {
  left: var(--sp-16);
  top: var(--sp-16);
}

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

button, input, select {
  font-family: inherit;
  color: inherit;
}

/* ---------------- Header ---------------- */

.site-header {
  position: relative;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: var(--sp-32) clamp(20px, 4vw, 64px) var(--sp-24);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 8px;
  background-image: linear-gradient(135deg, var(--surface) 50%, transparent 50%);
  background-size: 14px 14px;
  background-repeat: repeat-x;
}

.header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--sp-24);
  justify-content: space-between;
  max-width: 1360px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.brand-mark rect {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.6;
}
.brand-mark-filled {
  fill: var(--accent);
  stroke: var(--accent-dark);
}

.brand-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  letter-spacing: 0.01em;
  line-height: 1;
}

.brand-kicker {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.controls {
  max-width: 1360px;
  margin: var(--sp-24) auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: var(--sp-16) var(--sp-24);
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.field-search { flex: 1 1 280px; min-width: 220px; }
.field-filter { flex: 0 0 220px; min-width: 180px; }

#searchInput, #filterSelect {
  border: 1.5px solid var(--line);
  background: var(--surface-raised);
  padding: 11px 14px;
  font-size: 16px;
  border-radius: var(--radius-card);
  width: 100%;
}
#searchInput:focus, #filterSelect:focus {
  border-color: var(--focus);
}

#filterSelect {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) center, calc(100% - 13px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}

.controls-count {
  margin: 0 0 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  white-space: nowrap;
}

/* ---------------- Board ---------------- */

#board-main {
  max-width: 1360px;
  margin: 0 auto;
  padding: var(--sp-32) clamp(20px, 4vw, 64px) var(--sp-64);
}

.board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-24);
  align-items: start;
}
.board[hidden] { display: none; }

.column {
  background: var(--shelf);
  border: 1px solid var(--shelf-dark);
  border-radius: var(--radius-card);
  padding: var(--sp-16);
  min-width: 0;
}

.column[hidden] { display: none; }

.column-header {
  display: flex;
  align-items: baseline;
  gap: var(--sp-8);
  border-bottom: 2px solid var(--ink);
  padding-bottom: var(--sp-8);
  margin-bottom: var(--sp-16);
}

.column-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.column-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.column-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--ink);
  color: var(--surface);
  border-radius: var(--radius-pill);
  min-width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
}

.column-body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-12);
}

/* ---------------- Cards ---------------- */

.item-card {
  transform: rotate(var(--tilt, -0.4deg));
}
.item-card:nth-child(3n+1) { --tilt: -0.6deg; }
.item-card:nth-child(3n+2) { --tilt: 0.5deg; }
.item-card:nth-child(3n)   { --tilt: -0.2deg; }

.item-open {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-12);
  width: 100%;
  text-align: left;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: var(--sp-12);
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(42, 32, 24, 0.08), 0 4px 10px rgba(42, 32, 24, 0.12);
  position: relative;
}

@media (prefers-reduced-motion: no-preference) {
  .item-card { transition: transform 160ms ease; }
  .item-open { transition: box-shadow 160ms ease, transform 160ms ease; }
}

.item-card:hover,
.item-card:focus-within {
  transform: rotate(0deg);
}
.item-open:hover,
.item-open:focus-visible {
  box-shadow: 0 2px 0 rgba(42, 32, 24, 0.1), 0 10px 18px rgba(42, 32, 24, 0.18);
}

.item-stamp {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px dashed currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-align: center;
  line-height: 1.05;
  padding: 2px;
}
.item-stamp[data-status="todo"] { color: var(--status-todo); }
.item-stamp[data-status="in-progress"] { color: var(--status-progress); }
.item-stamp[data-status="blocked"] { color: var(--status-blocked); }
.item-stamp[data-status="done"] { color: var(--status-done); }

.item-main {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  flex: 1;
}

.item-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.25;
}

.item-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
}

.item-project {
  font-size: 12px;
  color: var(--ink-soft);
  font-style: italic;
}

.item-flag {
  align-self: flex-start;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-accent);
  background: var(--focus);
  padding: 3px 6px;
  border-radius: 2px;
  transform: rotate(2deg);
}

/* ---------------- Empty state ---------------- */

.empty-state {
  text-align: center;
  padding: var(--sp-64) var(--sp-24);
  border: 2px dashed var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.empty-mark {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--sp-16);
}
.empty-mark rect { fill: var(--shelf-dark); }
.empty-mark-dashed {
  fill: none;
  stroke: var(--ink-muted);
  stroke-width: 2;
  stroke-dasharray: 4 3;
}

.empty-state p {
  margin: 0 0 var(--sp-16);
  color: var(--ink-soft);
  font-size: 16px;
}

#clearFiltersBtn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
}
#clearFiltersBtn:hover { background: var(--accent-dark); }

/* ---------------- Footer ---------------- */

.site-footer {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 64px) var(--sp-48);
}
.site-footer p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  max-width: 70ch;
}

/* ---------------- Detail dialog ---------------- */

.detail {
  border: none;
  border-radius: var(--radius-card);
  padding: 0;
  width: min(680px, 92vw);
  max-height: 88vh;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 20px 60px rgba(20, 15, 10, 0.4);
}

.detail::backdrop {
  background: rgba(24, 18, 12, 0.55);
}

.detail[open] { display: block; }

.detail-inner {
  padding: var(--sp-24) clamp(20px, 4vw, 40px) var(--sp-32);
  overflow-y: auto;
  max-height: 88vh;
}

.detail-close {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-dark);
  cursor: pointer;
  padding: var(--sp-8) 0;
  margin-bottom: var(--sp-16);
}
.detail-close:hover { color: var(--focus); }

.detail-head {
  display: flex;
  gap: var(--sp-24);
  align-items: flex-start;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: var(--sp-24);
  margin-bottom: var(--sp-24);
}

.big-stamp {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 96px;
}
.big-stamp-ring {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: 3px dashed currentColor;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  gap: 2px;
}
.big-stamp-code {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.big-stamp-date {
  font-size: 10px;
  letter-spacing: 0.04em;
}
.big-stamp-caption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}
.big-stamp[data-status="todo"] { color: var(--status-todo); }
.big-stamp[data-status="in-progress"] { color: var(--status-progress); }
.big-stamp[data-status="blocked"] { color: var(--status-blocked); }
.big-stamp[data-status="done"] { color: var(--status-done); }

@media (prefers-reduced-motion: no-preference) {
  .big-stamp-ring { transition: transform 220ms ease; }
  .big-stamp.just-stamped .big-stamp-ring { animation: stamp-thump 320ms ease; }
}
@keyframes stamp-thump {
  0% { transform: scale(1.35) rotate(-8deg); }
  60% { transform: scale(0.95) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.detail-headtext { flex: 1; min-width: 220px; }

.detail-eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.03em;
}

.detail-title {
  margin: 0 0 var(--sp-12);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.15;
}

.detail-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.detail-tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--ink-muted);
  color: var(--ink-soft);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--sp-16);
  margin: 0 0 var(--sp-24);
  padding: var(--sp-16);
  background: var(--shelf);
  border-radius: var(--radius-card);
}
.detail-meta dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 3px;
}
.detail-meta dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.detail-body {
  font-size: 17px;
  line-height: 1.65;
  max-width: 62ch;
  margin-bottom: var(--sp-24);
}
.detail-body p { margin: 0 0 var(--sp-16); }
.detail-body p:last-child { margin-bottom: 0; }

.detail-route {
  border-top: 1px solid var(--line);
  padding-top: var(--sp-24);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-12) var(--sp-16);
}
.detail-route label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
#statusSelect {
  border: 1.5px solid var(--ink);
  background: var(--surface-raised);
  padding: 10px 34px 10px 14px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) center, calc(100% - 13px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  cursor: pointer;
}

.detail-feedback {
  flex-basis: 100%;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-dark);
  min-height: 1.2em;
}
.detail-feedback.is-active { color: var(--focus); }

/* ---------------- Responsive ---------------- */

@media (max-width: 900px) {
  .board { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
}

@media (max-width: 640px) {
  .site-header { padding: var(--sp-24) 20px 20px; }
  .header-row { flex-direction: column; align-items: flex-start; gap: var(--sp-12); }
  .lede { max-width: none; font-size: 15px; }
  .board { grid-template-columns: 1fr; }
  .field-filter { flex: 1 1 auto; }
  .detail-head { flex-direction: column; align-items: flex-start; }
  .detail-inner { padding: var(--sp-16) 20px var(--sp-24); }
}