:root {
  --green-900: #173e35;
  --green-800: #205247;
  --green-700: #2f685a;
  --green-100: #e7f1ed;
  --green-050: #f3f8f6;
  --ink: #17201d;
  --muted: #66736e;
  --line: #dce5e1;
  --surface: #ffffff;
  --canvas: #f5f7f6;
  --warning: #a76d12;
  --danger: #a13f3f;
  --shadow: 0 18px 48px rgba(23, 62, 53, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--canvas); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--canvas);
  font-family: "DM Sans", sans-serif;
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 255px minmax(0, 1fr); }
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  color: white;
  background: var(--green-900);
  display: flex;
  flex-direction: column;
  overflow: auto;
}
.brand-block { display: flex; gap: 12px; align-items: center; padding: 0 10px 30px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  color: var(--green-900); background: white;
  font: 800 22px/1 "Manrope", sans-serif;
}
.brand-block h1 { margin: 0; font: 800 25px/1 "Manrope", sans-serif; }
.eyebrow { margin: 0 0 4px; text-transform: uppercase; letter-spacing: .12em; font-size: 11px; font-weight: 700; color: var(--muted); }
.sidebar .eyebrow { color: rgba(255,255,255,.62); }
.main-nav { display: grid; gap: 7px; }
.nav-item {
  width: 100%; border: 0; color: rgba(255,255,255,.78); background: transparent;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; border-radius: 12px; text-align: left; font-weight: 600;
}
.nav-item span { min-width: 28px; padding: 2px 7px; border-radius: 99px; background: rgba(255,255,255,.1); text-align: center; font-size: 12px; }
.nav-item:hover, .nav-item.active { color: white; background: rgba(255,255,255,.12); }
.sidebar-footer { margin-top: auto; padding-top: 32px; display: grid; gap: 8px; }
.text-button { padding: 7px 10px; border: 0; color: rgba(255,255,255,.72); background: none; text-align: left; font-size: 13px; }
.text-button:hover { color: white; }
.text-button.danger { color: #ffb7b7; }
.file-label { cursor: pointer; }

.workspace { min-width: 0; padding: 34px 42px 64px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 24px; }
.topbar h2 { margin: 0; font: 800 clamp(28px, 4vw, 42px)/1.05 "Manrope", sans-serif; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.search-input { width: min(340px, 35vw); }

input, textarea, select {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm);
  color: var(--ink); background: white; padding: 11px 12px; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--green-700); box-shadow: 0 0 0 3px rgba(47,104,90,.12); }
textarea { resize: vertical; }
.primary-button, .secondary-button {
  border-radius: 11px; padding: 11px 16px; font-weight: 700; border: 1px solid transparent; white-space: nowrap;
}
.primary-button { color: white; background: var(--green-800); }
.primary-button:hover { background: var(--green-900); }
.secondary-button { color: var(--green-900); background: white; border-color: var(--line); }
.secondary-button:hover { border-color: var(--green-700); background: var(--green-050); }

.capture-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); }
.capture-heading { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 16px; }
.capture-heading h3 { margin: 0; font: 800 clamp(22px, 3vw, 30px)/1.15 "Manrope", sans-serif; }
.capture-note { color: var(--muted); margin: 0; font-size: 14px; }
.capture-row { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: stretch; }
.capture-row textarea { min-height: 72px; font-size: 17px; }
.capture-actions { display: grid; gap: 9px; }

.summary-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 20px 0 28px; }
.summary-strip article { border: 1px solid var(--line); background: rgba(255,255,255,.72); border-radius: 15px; padding: 16px; }
.summary-strip span { display: block; font: 800 24px/1 "Manrope", sans-serif; }
.summary-strip small { display: block; margin-top: 6px; color: var(--muted); }

.board-toolbar { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 16px; }
.board-toolbar h3 { margin: 0 0 4px; font: 800 25px/1.1 "Manrope", sans-serif; }
.board-toolbar p { margin: 0; color: var(--muted); }
.filter-row { display: flex; gap: 8px; }
.filter-row select { width: auto; min-width: 145px; }

.task-container { display: grid; gap: 12px; }
.task-card {
  display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 14px; align-items: start;
  padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: white;
}
.task-card:hover { box-shadow: 0 12px 30px rgba(23,62,53,.07); }
.complete-button { width: 28px; height: 28px; border-radius: 50%; border: 2px solid #aebbb6; background: transparent; display: grid; place-items: center; color: white; }
.complete-button:hover { border-color: var(--green-700); }
.task-card.completed .complete-button { background: var(--green-700); border-color: var(--green-700); }
.task-card.completed .task-title { text-decoration: line-through; color: var(--muted); }
.task-title { margin: 1px 0 7px; font-size: 17px; font-weight: 700; }
.task-original { margin: 0 0 10px; color: var(--muted); font-size: 13px; }
.task-meta { display: flex; flex-wrap: wrap; gap: 7px; }
.chip { padding: 4px 8px; border-radius: 99px; background: var(--green-050); color: var(--green-800); font-size: 12px; font-weight: 600; }
.chip.priority-high { background: #fbe8e8; color: #943737; }
.chip.priority-low { background: #edf1f0; color: #5b6763; }
.chip.overdue { background: #fff0da; color: var(--warning); }
.chip.project-warning { background: #fff0da; color: var(--warning); }
.card-actions { display: flex; gap: 5px; }
.card-actions button { border: 0; background: transparent; color: var(--muted); padding: 7px; border-radius: 8px; }
.card-actions button:hover { color: var(--ink); background: var(--green-050); }
.empty-state { padding: 50px 24px; text-align: center; border: 1px dashed #c7d3ce; border-radius: var(--radius-lg); background: rgba(255,255,255,.55); }
.empty-state h4 { margin: 0 0 8px; font: 800 21px/1.2 "Manrope", sans-serif; }
.empty-state p { margin: 0; color: var(--muted); }
.group-heading { margin: 20px 0 4px; font: 800 16px/1 "Manrope", sans-serif; color: var(--green-900); }
.group-heading:first-child { margin-top: 0; }

.dialog { width: min(760px, calc(100vw - 28px)); max-height: calc(100vh - 28px); border: 0; border-radius: 22px; padding: 0; box-shadow: 0 30px 90px rgba(0,0,0,.22); }
.dialog::backdrop { background: rgba(13,30,25,.55); backdrop-filter: blur(3px); }
.dialog form { padding: 26px; }
.dialog-header { display: flex; justify-content: space-between; gap: 16px; align-items: start; margin-bottom: 18px; }
.dialog-header h3 { margin: 0; font: 800 26px/1.1 "Manrope", sans-serif; }
.icon-button { border: 0; background: var(--green-050); width: 36px; height: 36px; border-radius: 50%; font-size: 24px; line-height: 1; }
.original-capture { padding: 14px 16px; border-radius: 13px; background: var(--green-050); margin-bottom: 18px; }
.original-capture span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid label { display: grid; gap: 7px; font-size: 13px; font-weight: 700; color: #3e4b47; }
.full-width { grid-column: 1 / -1; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.hidden { display: none !important; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 20; padding: 12px 16px; color: white; background: var(--green-900); border-radius: 11px; box-shadow: var(--shadow); opacity: 0; transform: translateY(12px); pointer-events: none; transition: .2s ease; }
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; padding: 18px; }
  .main-nav { display: flex; overflow-x: auto; padding-bottom: 4px; }
  .nav-item { min-width: max-content; }
  .sidebar-footer { display: none; }
  .workspace { padding: 24px; }
  .summary-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .workspace { padding: 18px 14px 44px; }
  .topbar, .board-toolbar, .capture-heading { align-items: stretch; flex-direction: column; }
  .topbar-actions, .filter-row { display: grid; grid-template-columns: 1fr; }
  .search-input, .filter-row select { width: 100%; }
  .capture-row { grid-template-columns: 1fr; }
  .capture-actions { grid-template-columns: 1fr 1fr; }
  .summary-strip { grid-template-columns: 1fr 1fr; }
  .task-card { grid-template-columns: auto minmax(0,1fr); }
  .card-actions { grid-column: 2; justify-content: flex-end; }
  .form-grid { grid-template-columns: 1fr; }
  .full-width { grid-column: 1; }
}