/* =====================================================
   PROTOTYPE — Gantt planner (Prototype → Gantt planner)
   Every colour comes from the active theme's variables, so this works
   unchanged in light and dark themes. No literals.
   ===================================================== */

.gp-wrap { display: flex; flex-direction: column; gap: var(--sp-4); }

/* ── List view ─────────────────────────────────────── */
.gp-grid {
  display: grid; gap: var(--sp-4);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.gp-card { padding: var(--sp-5); cursor: pointer; transition: border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }
.gp-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.gp-card-top { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }
.gp-card-desc { margin: var(--sp-2) 0 var(--sp-3); font-size: 13px; }
.gp-card-meta { display: flex; gap: var(--sp-2); flex-wrap: wrap; font-size: 12px; color: var(--text-3); }

.gp-chip {
  display: inline-flex; align-items: center; gap: var(--sp-1);
  padding: 2px var(--sp-2); border-radius: var(--r-pill);
  font-size: 11px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid var(--line); color: var(--text-2); background: var(--surface-2);
  white-space: nowrap;
}
.gp-chip-linked { border-color: var(--accent-ring); color: var(--accent); background: var(--accent-soft); }
.gp-chip-warn   { border-color: var(--warn);  color: var(--warn); background: var(--warn-soft); }
.gp-chip-error  { border-color: var(--neg);   color: var(--neg);  background: var(--neg-soft); }
.gp-chip-ok     { border-color: var(--pos);   color: var(--pos);  background: var(--pos-soft); }

/* ── Editor toolbar ────────────────────────────────── */
.gp-toolbar {
  display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap;
  padding: var(--sp-3) 0;
}
.gp-title-input {
  font: 600 20px/1.2 var(--font-sans);
  color: var(--text); background: transparent;
  border: 1px solid transparent; border-radius: var(--r-1);
  padding: var(--sp-2) var(--sp-2); min-width: 200px; flex: 1 1 220px;
}
.gp-title-input:hover  { border-color: var(--line); }
.gp-title-input:focus  { outline: none; border-color: var(--accent-ring); background: var(--surface); }
.gp-field { display: flex; align-items: center; gap: var(--sp-2); font-size: 12px; color: var(--text-3); }
.gp-field select, .gp-field input[type="date"] {
  height: 32px; padding: 0 var(--sp-2);
  border: 1px solid var(--line); border-radius: var(--r-1);
  background: var(--surface); color: var(--text);
  font: 500 12px/1 var(--font-sans);
}
.gp-save-state { font-size: 12px; color: var(--text-3); min-width: 58px; }

/* ── Validation banner ─────────────────────────────── */
.gp-notices { display: flex; flex-direction: column; gap: var(--sp-2); }
.gp-notice {
  display: flex; gap: var(--sp-3); align-items: flex-start;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--line); border-left-width: 3px;
  border-radius: var(--r-2); background: var(--surface);
  font-size: 13px; color: var(--text-2);
}
.gp-notice-error { border-left-color: var(--neg);  background: var(--neg-soft); }
.gp-notice-warn  { border-left-color: var(--warn); background: var(--warn-soft); }
.gp-notice-ok    { border-left-color: var(--pos);  background: var(--pos-soft); }
.gp-notice strong { color: var(--text); }
.gp-notice ul { margin: var(--sp-1) 0 0; padding-left: var(--sp-5); }
.gp-notice li { margin-bottom: 2px; }

/* ── Chart shell ───────────────────────────────────── */
.gp-chart {
  display: grid; grid-template-columns: var(--gp-rows-w, 320px) 1fr;
  border: 1px solid var(--line); border-radius: var(--r-3);
  background: var(--surface); overflow: hidden;
}
.gp-head-cell {
  height: 40px; display: flex; align-items: center; gap: var(--sp-2);
  padding: 0 var(--sp-3);
  border-bottom: 1px solid var(--line); background: var(--surface-2);
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-3);
}

/* Left: task rows */
.gp-rows { border-right: 1px solid var(--line); min-width: 0; }
.gp-row {
  height: 38px; display: grid;
  grid-template-columns: 1fr 52px 26px;
  align-items: center; gap: var(--sp-2);
  padding: 0 var(--sp-3);
  border-bottom: 1px solid var(--line);
  cursor: pointer; font-size: 13px; color: var(--text-2);
}
.gp-row:hover { background: var(--surface-2); }
.gp-row.is-sel { background: var(--accent-soft); color: var(--text); }
.gp-row-name { display: flex; align-items: center; gap: var(--sp-2); min-width: 0; }
.gp-row-name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gp-row-dur { font: 500 12px/1 var(--font-mono); color: var(--text-3); text-align: right; }
.gp-row-del {
  width: 22px; height: 22px; display: grid; place-items: center;
  border: 0; border-radius: var(--r-1); background: transparent;
  color: var(--text-3); cursor: pointer; opacity: 0;
}
.gp-row:hover .gp-row-del { opacity: 1; }
.gp-row-del:hover { background: var(--neg-soft); color: var(--neg); }
/* A dot marking what kind of step this bar owns. */
.gp-row-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }
.gp-row-dot.is-milestone { background: var(--warn); }
.gp-row-dot.is-terminal  { background: var(--pos); }
.gp-row-dot.is-unlinked  { background: var(--line-strong); }

.gp-add-row {
  display: flex; align-items: center; gap: var(--sp-2);
  width: 100%; height: 38px; padding: 0 var(--sp-3);
  border: 0; border-bottom: 1px solid var(--line);
  background: transparent; color: var(--text-3);
  font: 500 13px/1 var(--font-sans); cursor: pointer; text-align: left;
}
.gp-add-row:hover { background: var(--surface-2); color: var(--accent); }

/* Right: timeline */
.gp-timeline { overflow-x: auto; overflow-y: hidden; position: relative; min-width: 0; }
.gp-timeline-inner { position: relative; }
.gp-ticks { display: flex; height: 40px; border-bottom: 1px solid var(--line); background: var(--surface-2); }
.gp-tick {
  flex: 0 0 auto; display: flex; flex-direction: column; justify-content: center;
  padding-left: var(--sp-2); border-left: 1px solid var(--line);
  font-size: 10px; color: var(--text-3); overflow: hidden; white-space: nowrap;
}
.gp-tick-major { color: var(--text-2); font-weight: 600; }
.gp-tick-weekend { background: var(--bg-tint); }

.gp-lanes { position: relative; }
.gp-lane { height: 38px; border-bottom: 1px solid var(--line); position: relative; }
.gp-lane:hover { background: var(--surface-2); }
.gp-lane.is-sel { background: var(--accent-soft); }
/* Vertical day grid + today marker, drawn behind the bars. */
.gp-gridlines, .gp-arrows {
  position: absolute; inset: 0; pointer-events: none;
}
/* styles.css sets a global `svg { width:16px; height:16px }` for the app's inline
   icons. Without an explicit override the arrow overlay collapses to 16×16 and
   every dependency arrow is clipped away. */
.gp-arrows { width: 100%; height: 100%; overflow: visible; }
.gp-today {
  position: absolute; top: 0; bottom: 0; width: 2px;
  background: var(--neg); opacity: .55; pointer-events: none;
}

.gp-bar {
  position: absolute; top: 7px; height: 24px;
  border-radius: var(--r-1);
  background: var(--accent); color: var(--text-on-accent);
  border: 1px solid var(--accent);
  display: flex; align-items: center; padding: 0 var(--sp-2);
  font: 600 11px/1 var(--font-sans);
  cursor: grab; user-select: none; overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.gp-bar:active { cursor: grabbing; }
.gp-bar.is-sel { outline: 2px solid var(--accent-ring); outline-offset: 1px; }
.gp-bar-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; pointer-events: none; }
/* Progress shading inside the bar. */
.gp-bar-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--text); opacity: .18; pointer-events: none;
}
.gp-bar-handle {
  position: absolute; top: 0; bottom: 0; width: 7px;
  cursor: ew-resize; background: transparent;
}
.gp-bar-handle-r { right: 0; }
.gp-bar-handle-r:hover { background: var(--text); opacity: .25; }
/* The dot you drag to draw a dependency arrow. */
.gp-bar-link {
  position: absolute; right: -13px; top: 50%; transform: translateY(-50%);
  width: 11px; height: 11px; border-radius: 50%;
  border: 2px solid var(--accent); background: var(--surface);
  cursor: crosshair; opacity: 0; transition: opacity var(--dur-1) var(--ease);
}
.gp-lane:hover .gp-bar-link, .gp-bar.is-sel .gp-bar-link { opacity: 1; }

/* A milestone (zero-duration) shows as a diamond rather than a bar. */
.gp-milestone {
  position: absolute; top: 10px; width: 18px; height: 18px;
  transform: rotate(45deg); border-radius: 3px;
  background: var(--warn); border: 1px solid var(--warn);
  cursor: grab;
}
.gp-milestone.is-sel { outline: 2px solid var(--accent-ring); outline-offset: 2px; }
.gp-milestone-label {
  position: absolute; top: 12px; font: 600 11px/1 var(--font-sans);
  color: var(--text-2); white-space: nowrap; pointer-events: none;
}

/* Terminal (ends the workflow) bars read as an outcome, not work. */
.gp-bar.is-terminal { background: var(--pos); border-color: var(--pos); color: var(--text-on-accent); }
/* A bar whose task owns no workflow step yet. */
.gp-bar.is-unlinked { background: var(--surface-2); border-color: var(--line-strong); color: var(--text-2); border-style: dashed; }

/* ── Inspector ─────────────────────────────────────── */
.gp-inspector { padding: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-4); }
.gp-insp-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }
.gp-insp-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.gp-insp-field { display: flex; flex-direction: column; gap: var(--sp-2); }
.gp-insp-field > span { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); }
.gp-insp-field input, .gp-insp-field select, .gp-insp-field textarea {
  width: 100%; padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--line); border-radius: var(--r-1);
  background: var(--surface-2); color: var(--text);
  font: 400 13px/1.4 var(--font-sans);
}
.gp-insp-field input:focus, .gp-insp-field select:focus, .gp-insp-field textarea:focus {
  outline: none; border-color: var(--accent-ring); background: var(--surface);
}
.gp-insp-field textarea { resize: vertical; min-height: 62px; }
.gp-check { display: flex; align-items: center; gap: var(--sp-2); font-size: 13px; color: var(--text-2); }
.gp-dep-list { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.gp-dep {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-2); border-radius: var(--r-pill);
  border: 1px solid var(--line); background: var(--surface-2);
  font-size: 12px; color: var(--text-2);
}
.gp-dep button { border: 0; background: transparent; color: var(--text-3); cursor: pointer; line-height: 1; padding: 0; }
.gp-dep button:hover { color: var(--neg); }

/* ── Apply result modal ────────────────────────────── */
.gp-result-list { max-height: 340px; overflow-y: auto; display: flex; flex-direction: column; gap: var(--sp-3); }

@media (max-width: 900px) {
  .gp-chart { grid-template-columns: 200px 1fr; }
  .gp-row { grid-template-columns: 1fr 26px; }
  .gp-row-dur { display: none; }
}