:root {
  --bg: #f3f4f6;
  --panel: #ffffff;
  --text: #171717;
  --muted: #6b7280;
  --line: #e5e7eb;
  --dark: #111111;
  --danger: #b42318;
  --warning-bg: #fff1a8;
  --warning-line: #e2ba30;
  --overdue-bg: #ffd5d2;
  --overdue-line: #d9362b;
  --shadow: 0 8px 24px rgba(0,0,0,.06);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 22px 30px;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--muted);
}

h1 { margin: 4px 0 0; font-size: 24px; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.search-input { width: min(340px, 40vw); }

.search-input,
.composer input,
.composer select,
.description-area input,
.description-area select,
.description-area textarea,
.login-box input {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 11px 14px;
  outline: none;
}

.search-input:focus,
.composer input:focus,
.composer select:focus,
.description-area input:focus,
.description-area select:focus,
.description-area textarea:focus,
.login-box input:focus {
  border-color: #9ca3af;
  box-shadow: 0 0 0 3px rgba(17,17,17,.08);
}

.app-shell { max-width: 1700px; margin: 0 auto; padding: 24px; }

.composer {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.composer-main {
  display: grid;
  grid-template-columns: 1fr 150px 170px auto;
  gap: 10px;
}

.primary-button {
  border: 0;
  border-radius: 12px;
  background: var(--dark);
  color: white;
  padding: 12px 16px;
  font-weight: 700;
}

.ghost-button {
  border: 1px solid var(--line);
  background: white;
  border-radius: 12px;
  padding: 10px 14px;
}

.global-message {
  min-height: 18px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--danger);
}

.dashboard-tools {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  align-items: center;
  margin-bottom: 18px;
}

.summary-cards { display: flex; flex-wrap: wrap; gap: 8px; }

.summary-card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 800;
}

.summary-card.warning {
  background: var(--warning-bg);
  border-color: var(--warning-line);
}

.summary-card.overdue {
  background: var(--overdue-bg);
  border-color: var(--overdue-line);
}

.filters { display: flex; flex-wrap: wrap; gap: 7px; }

.filter-button {
  border: 1px solid var(--line);
  background: white;
  color: #4b5563;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 800;
}

.filter-button.active {
  background: #111;
  border-color: #111;
  color: white;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(310px, 1fr));
  gap: 16px;
  align-items: start;
}

.column {
  background: #eceef1;
  border: 1px solid #dde0e4;
  border-radius: 16px;
  padding: 14px;
  min-height: 320px;
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.column-header > div { display: flex; align-items: center; gap: 9px; }
.column-title { margin: 0; font-size: 16px; }
.column-icon { font-size: 19px; }

.column-count {
  background: #d8dbe0;
  color: #3f4650;
  min-width: 27px;
  height: 27px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
}

.column-description {
  color: var(--muted);
  font-size: 12px;
  margin: 8px 0 14px;
  min-height: 30px;
}

.card-list { display: flex; flex-direction: column; gap: 10px; }

.task-card {
  position: relative;
  background: white;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px;
  box-shadow: 0 5px 16px rgba(0,0,0,.045);
}

.task-card.deadline-warning {
  background: var(--warning-bg);
  border-color: var(--warning-line);
}

.task-card.deadline-overdue {
  background: var(--overdue-bg);
  border-color: var(--overdue-line);
  box-shadow: 0 5px 18px rgba(183,29,22,.12);
}

.card-top { display: flex; align-items: flex-start; gap: 10px; }

.status-dot {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid #9ca3af;
  background: rgba(255,255,255,.85);
  border-radius: 6px;
  margin-top: 1px;
}

.card-title-wrap { flex: 1; min-width: 0; }
.card-title-wrap.clickable { cursor: pointer; }

.card-title {
  font-size: 14px;
  line-height: 1.35;
  margin: 0;
  overflow-wrap: anywhere;
}

.card-meta {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
}

.expand-button,
.menu-button {
  border: 0;
  background: transparent;
  color: #737373;
  padding: 0 2px;
  font-weight: 900;
}

.expand-button {
  font-size: 22px;
  line-height: 1;
  transform: rotate(-90deg);
  transition: transform .18s ease;
  margin-top: -1px;
}

.expand-button.expanded { transform: rotate(0deg); }
.menu-button { letter-spacing: 1px; }

.deadline-badge {
  margin-top: 10px;
  width: fit-content;
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 11px;
  font-weight: 900;
  background: rgba(255,255,255,.68);
  border: 1px solid rgba(0,0,0,.12);
}

.card-menu {
  position: absolute;
  top: 38px;
  right: 10px;
  z-index: 4;
  min-width: 145px;
  padding: 6px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.card-menu button,
.status-picker button {
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
  padding: 9px;
  border-radius: 7px;
}

.card-menu button:hover,
.status-picker button:hover { background: #f3f4f6; }

.danger-text { color: var(--danger); }

.status-picker {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 5px;
  background: rgba(255,255,255,.78);
}

.status-picker button.active {
  background: #111;
  color: white;
}

.description-area {
  margin-top: 13px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,.1);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 160px 140px;
  gap: 10px;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
}

.form-grid label:first-child { grid-column: 1 / -1; }

.description-area textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  line-height: 1.5;
}

.description-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.save-state { font-size: 11px; color: var(--muted); }

.show-more-button {
  width: 100%;
  border: 1px solid #cfd3d9;
  background: rgba(255,255,255,.72);
  color: #343a43;
  border-radius: 11px;
  padding: 10px 12px;
  font-weight: 800;
  font-size: 12px;
}

.show-less-button {
  width: 100%;
  border: 0;
  background: transparent;
  color: #6b7280;
  border-radius: 11px;
  padding: 8px 12px;
  font-weight: 800;
  font-size: 12px;
}

.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(17,17,17,.92);
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-box {
  width: min(390px,100%);
  background: white;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 20px 70px rgba(0,0,0,.3);
}

.brand-mark {
  width: 48px;
  height: 48px;
  background: #111;
  color: white;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 900;
}

.login-box p { color: var(--muted); }
.login-box input { width: 100%; margin-bottom: 10px; }
.login-box .primary-button { width: 100%; }

.form-error {
  min-height: 18px;
  margin-top: 9px;
  color: var(--danger);
  font-size: 13px;
}

@media (max-width: 950px) {
  .app-header {
    position: static;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
  }

  .header-actions { width: 100%; }
  .search-input { width: 100%; flex: 1; }
  .app-shell { padding: 14px; }

  .composer-main { grid-template-columns: 1fr 1fr; }

  .composer-main #titleInput,
  .composer-main .primary-button { grid-column: 1 / -1; }

  .dashboard-tools {
    align-items: flex-start;
    flex-direction: column;
  }

  .board {
    grid-template-columns: repeat(3, minmax(300px, 84vw));
    overflow-x: auto;
    scroll-snap-type: x proximity;
  }

  .column { scroll-snap-align: start; }
}

@media (max-width: 560px) {
  .composer-main,
  .form-grid { grid-template-columns: 1fr; }

  .composer-main > *,
  .composer-main #titleInput,
  .composer-main .primary-button,
  .form-grid label:first-child { grid-column: auto; }

  .primary-button { width: 100%; }
  h1 { font-size: 21px; }
}