/* ================================================================
   PIXELBAN — dark blue-grey pixel-art kanban
   ================================================================ */

:root {
  /* Aurora palette: deep navy night-sky ground, luminous aurora
     greens for cards and accents, gold for headings, coral for
     destructive actions. */
  --bg:          #0f1c2e;
  --bg-deep:     #0a1322;
  --panel:       #172a35;
  --panel-2:     #264030;
  --panel-3:     #22404f;
  --panel-4:     #2d5464;
  --border-dk:   #081018;
  --text:        #dbe8dd;
  --text-dim:    #8fa9a4;
  --accent:      #3ecf5f;
  --accent-2:    #74e57a;
  --warm:        #f7db9a;
  --danger:      #ff7a59;
  --ok:          #b9ef8a;
  --px: 3px;                       /* pixel unit for chunky borders */
  --radius:      10px;             /* soft corner radius */
  --radius-sm:   6px;
  --shadow-col:  0 4px 10px rgba(0, 0, 0, 0.4), 0 12px 28px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 5px 10px rgba(0, 0, 0, 0.5), 0 10px 22px rgba(0, 0, 0, 0.35);
  --shadow-lift: 0 10px 18px rgba(0, 0, 0, 0.55), 0 18px 36px rgba(0, 0, 0, 0.4);
  --shadow-btn:  0 3px 6px rgba(0, 0, 0, 0.45), 0 6px 14px rgba(0, 0, 0, 0.3);
  --font-body:  'VT323', monospace;

  /* stepped "low-res" rounded border rings (SVG border-image).
     16x16 grid with a radius-5 pixel-art arc: 3-run, 1, 1 steps per corner. */
  --pxb-dark:   url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path d="M4 1h8v1h-8zM2 2h2v1h-2zM12 2h2v1h-2zM2 3h1v1h-1zM13 3h1v1h-1zM1 4h1v8h-1zM14 4h1v8h-1zM2 12h1v1h-1zM13 12h1v1h-1zM2 13h2v1h-2zM12 13h2v1h-2zM4 14h8v1h-8z" fill="%23081018"/></svg>');
  --pxb-light:  url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path d="M4 1h8v1h-8zM2 2h2v1h-2zM12 2h2v1h-2zM2 3h1v1h-1zM13 3h1v1h-1zM1 4h1v8h-1zM14 4h1v8h-1zM2 12h1v1h-1zM13 12h1v1h-1zM2 13h2v1h-2zM12 13h2v1h-2zM4 14h8v1h-8z" fill="%238fa9a4"/></svg>');
  --pxb-accent: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path d="M4 1h8v1h-8zM2 2h2v1h-2zM12 2h2v1h-2zM2 3h1v1h-1zM13 3h1v1h-1zM1 4h1v8h-1zM14 4h1v8h-1zM2 12h1v1h-1zM13 12h1v1h-1zM2 13h2v1h-2zM12 13h2v1h-2zM4 14h8v1h-8z" fill="%23448a63"/></svg>');
}

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

html, body { height: 100%; }
.hidden { display: none !important; }

body {
  background-color: var(--bg);
  /* subtle pixel-grid backdrop + soft teal glow drawing the eye to centre-top */
  background-image:
    linear-gradient(rgba(150, 230, 170, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150, 230, 170, 0.03) 1px, transparent 1px),
    radial-gradient(ellipse 120% 90% at 50% -10%, rgba(62, 207, 95, 0.14), transparent 60%);
  background-size: 24px 24px, 24px 24px, 100% 100%;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  image-rendering: pixelated;
}

::selection { background: #33604c; color: var(--text); }

/* ---------------- pixel border helper ---------------- */
.pixel-box {
  border: var(--px) solid var(--border-dk);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

/* ---------------- top bar ---------------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 18px;
  background: linear-gradient(180deg, var(--panel-3), var(--panel));
  border-bottom: var(--px) solid var(--border-dk);
  flex: 0 0 auto;
  /* float the bar above the board */
  position: relative;
  z-index: 10;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5), 0 8px 28px rgba(0, 0, 0, 0.3);
}

/* board tabs */
.board-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  flex: 1 1 auto;
  padding: 4px;
  scrollbar-width: thin;
}

.tab {
  font-family: var(--font-body);
  font-size: 19px;
  letter-spacing: 1px;
  padding: 5px 16px 6px;
  background: var(--panel-3);
  color: var(--text-dim);
  border: var(--px) solid var(--border-dk);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.1), var(--shadow-btn);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: transform 0.1s ease-out, box-shadow 0.1s ease-out;
}
.tab:hover {
  color: var(--text);
  background: var(--panel-4);
  transform: translateY(-1px);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.12), 0 4px 8px rgba(0, 0, 0, 0.55), 0 8px 20px rgba(0, 0, 0, 0.4);
}
.tab.active {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.25), var(--shadow-btn);
}

.topbar-actions { display: flex; gap: 8px; flex: 0 0 auto; }

.sync-status {
  flex: 0 0 auto;
  color: var(--text-dim);
  font-size: 16px;
  letter-spacing: 1px;
  white-space: nowrap;
}
.sync-status[data-tone="saved"] { color: var(--ok); }
.sync-status[data-tone="saving"] { color: var(--warm); }
.sync-status[data-tone="error"] { color: var(--danger); }

.user-panel {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
}

/* ---------------- buttons ---------------- */
.btn {
  font-family: var(--font-body);
  font-size: 20px;
  line-height: 1;
  padding: 7px 13px 9px;
  color: var(--text);
  background: var(--panel-3);
  border: var(--px) solid var(--border-dk);
  border-radius: var(--radius-sm);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0) 55%);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.1), var(--shadow-btn);
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.1s ease-out, box-shadow 0.1s ease-out;
}
.btn:hover {
  background-color: var(--panel-4);
  transform: translateY(-1px);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.12), 0 4px 8px rgba(0, 0, 0, 0.55), 0 8px 20px rgba(0, 0, 0, 0.4);
}
.btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--bg-deep);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.2), var(--shadow-btn);
}
.btn-accent:hover { background-color: var(--accent-2); }

.btn-danger { background-color: #6e352b; }
.btn-danger:hover { background-color: var(--danger); color: var(--bg-deep); }

.btn-ghost {
  background: transparent;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  border: var(--px) dashed var(--border-lt);
  color: var(--text-dim);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); background: rgba(255,255,255,0.03); }

/* VT323 glyphs are roughly half-width, so icon characters (+, x)
   look squished; stretch them back to square proportions */
.glyph {
  display: inline-block;
  transform: scaleX(1.7);
  /* the stretch renders wider than the layout box; keep neighbours clear */
  margin: 0 0.15em;
}

/* ---------------- board / columns ---------------- */
.board {
  flex: 1 1 auto;
  display: flex;
  align-items: stretch;
  gap: 22px;
  padding: 26px;
  overflow-x: auto;
  overflow-y: hidden;
}

.empty-state {
  margin: auto;
  text-align: center;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 24px;
  letter-spacing: 2px;
  line-height: 1.8;
}
.empty-state img {
  display: block;
  width: 60px;
  margin: 0 auto 16px;
  image-rendering: pixelated;
}

.auth-gate {
  flex: 1 1 auto;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  padding: 30px;
  text-align: center;
  color: var(--text-dim);
}
.auth-gate img {
  width: 76px;
  margin-bottom: 4px;
  image-rendering: pixelated;
  filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.45));
}
.auth-gate h1 {
  color: var(--warm);
  font-size: 30px;
  font-weight: normal;
  letter-spacing: 2px;
}
.auth-gate p {
  max-width: 440px;
  font-size: 21px;
  line-height: 1.35;
}
.auth-gate .btn { margin-top: 8px; }

.column {
  flex: 0 0 300px;
  height: 100%;
  display: flex;
  flex-direction: column;
  /* translucent gradient so columns blend into the page backdrop */
  background: linear-gradient(180deg, rgba(23, 42, 53, 0.92) 0%, rgba(22, 40, 52, 0.7) 55%, rgba(19, 35, 48, 0.5) 100%);
  border-radius: var(--radius);
  box-shadow: var(--shadow-col);
  overflow: hidden;
}

.column-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 12px 10px;
  border-bottom: var(--px) solid var(--border-dk);
  /* raised header band: opaque teal gradient + top catch-light,
     casting a shadow down onto the card well */
  background: linear-gradient(180deg, var(--panel-3), var(--panel));
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.08), 0 4px 12px rgba(0, 0, 0, 0.45);
  position: relative;
  z-index: 1;
}

.column-title {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--warm);
  background: transparent;
  border: var(--px) solid transparent;
  border-radius: var(--radius-sm);
  padding: 2px 6px 3px;
  text-transform: uppercase;
}
.column-title:hover { border-color: var(--border-lt); }
.column-title:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-deep);
}

.card-count {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1;
  color: var(--text-dim);
  background: var(--bg-deep);
  padding: 4px 12px 5px;
  min-width: 36px;
  text-align: center;
  flex: 0 0 auto;
  border-radius: 3px;
}

.column-delete {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 18px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 6px;
}
.column-delete:hover { color: var(--danger); }

.cards {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 60px;
  scrollbar-width: thin;
}
.cards.drag-over {
  outline: var(--px) dashed var(--accent);
  outline-offset: -6px;
  background: rgba(139, 201, 143, 0.05);
}

.add-card-btn {
  margin: 0 14px 14px;
  padding: 4px 10px 8px;
  font-size: 24px;
}

.add-column-btn {
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  align-self: flex-start;
  display: grid;
  place-items: center;
  padding: 0 0 4px;   /* VT323's "+" sits high; nudge down for optical centre */
  font-size: 30px;
}

/* ---------------- cards ---------------- */
.card {
  background: var(--panel-2);
  /* faint top light so the surface reads as raised, not flat */
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0) 45%);
  cursor: grab;
  padding: 12px 12px 10px 18px;
  border: var(--px) solid var(--border-dk);
  /* category stripe drawn as inset shadow so the pixel border-image keeps all 4 edges */
  box-shadow: inset 6px 0 0 var(--card-cat, #5a6a5b), var(--shadow-card);
  transition: transform 0.12s ease-out, box-shadow 0.12s ease-out;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: inset 6px 0 0 var(--card-cat, #5a6a5b), var(--shadow-lift);
}
.card:active { cursor: grabbing; }
.card.dragging { opacity: 0.35; transform: none; }

.card-top {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.card-title {
  flex: 1 1 auto;
  font-size: 21px;
  line-height: 1.15;
  word-break: break-word;
  color: var(--warm);
}

.card-edit-btn {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 16px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 4px;
}
.card-edit-btn:hover { color: var(--accent-2); }

.card-category {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 16px;
  letter-spacing: 1px;
  color: var(--text-dim);
  text-transform: uppercase;
}
.card-category .swatch {
  width: 10px;
  height: 10px;
  background: var(--card-cat);
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* checklist on card */
.card-checklist {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 18px;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.check-item.done { color: var(--text-dim); text-decoration: line-through; }

.check-progress {
  margin-top: 10px;
  height: 10px;
  background: var(--bg-deep);
  border: 2px solid var(--border-dk);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}
.check-progress .fill {
  position: absolute;
  inset: 0;
  right: auto;
  background: #57d160;
  /* chunky pixel steps, like a growing vine */
  background-image: linear-gradient(90deg, rgba(0,0,0,0.15) 1px, transparent 1px);
  background-size: 6px 100%;
  border-right: 3px solid var(--accent-2);
}
.check-progress .fill[style*="width: 0%"] { border-right: none; }

/* pixel checkboxes */
input[type="checkbox"].px-check {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  background: var(--bg-deep);
  border: var(--px) solid var(--border-lt);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}
input[type="checkbox"].px-check:checked { background: var(--ok); border-color: var(--ok); }
input[type="checkbox"].px-check:checked::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--bg-deep);
  clip-path: polygon(15% 45%, 40% 70%, 85% 15%, 100% 30%, 40% 100%, 0% 60%);
}

/* ---------------- modal ---------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 9, 18, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-backdrop.hidden { display: none; }

.modal {
  width: 460px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--panel);
  padding: 22px;
  border: var(--px) solid var(--border-dk);
  border-radius: var(--radius);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5), 0 16px 40px rgba(0, 0, 0, 0.35);
}

.modal-title {
  font-family: var(--font-body);
  font-size: 26px;
  letter-spacing: 2px;
  color: var(--warm);
  margin-bottom: 18px;
}

.field { display: block; margin-bottom: 16px; }
.field-label {
  display: block;
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 2px;
}

.field-row { display: flex; gap: 12px; }
.field-row .grow { flex: 1 1 auto; }

.modal input[type="text"] {
  width: 100%;
  font-family: var(--font-body);
  font-size: 20px;
  color: var(--text);
  background: var(--bg-deep);
  border: var(--px) solid var(--border-lt);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.modal input[type="text"]:focus { outline: none; border-color: var(--accent); }

/* predefined category colour swatches */
.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 2px;
}
.cat-swatch {
  width: 34px;
  height: 34px;
  padding: 0;
  border: var(--px) solid var(--border-dk);
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.45);
  transition: transform 0.1s ease-out;
}
.cat-swatch:hover { transform: translateY(-2px); }
.cat-swatch.selected {
  outline: var(--px) solid var(--text);
  outline-offset: 2px;
  transform: translateY(-2px);
}

.edit-checklist { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }

.edit-check-row { display: flex; align-items: center; gap: 8px; }
.edit-check-row input[type="text"] { flex: 1 1 auto; font-size: 18px; padding: 6px 8px; }

.edit-check-del {
  font-family: var(--font-body);
  font-size: 18px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 6px;
}
.edit-check-del:hover { color: var(--danger); }

.modal-buttons {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
.modal-buttons .spacer { flex: 1 1 auto; }

/* ---------------- scrollbars (webkit) ---------------- */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: var(--panel-3);
  border: 3px solid var(--bg-deep);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: var(--border-lt); }

/* ---------------- pixelated borders ----------------
   Replaces the smooth border-radius with a stair-stepped pixel arc.
   Slice 7 of the 16px SVG at 2px per pixel → 14px corners, 4px outset. */
.pixel-box,
.card,
.btn,
.tab,
.modal {
  border-radius: 0;
  border-image: var(--pxb-dark) 7 / 14px / 4px stretch;
}

.btn-ghost { border-image: none; }   /* keep its dashed outline */

.modal input[type="text"] {
  border-radius: 0;
  border-image: var(--pxb-light) 7 / 14px / 4px stretch;
}
.modal input[type="text"]:focus { border-image-source: var(--pxb-accent); }

@media (max-width: 760px) {
  .topbar { gap: 9px; padding-inline: 10px; }
  .sync-status { display: none; }
  .board { padding: 18px; }
}