:root {
  color-scheme: light;
  --bg: #f3f5ef;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(15, 23, 42, 0.08);
  --ink: #14213d;
  --muted: #52607a;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --danger: #b91c1c;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 35%),
    radial-gradient(circle at top right, rgba(14, 116, 144, 0.12), transparent 28%),
    linear-gradient(180deg, #f6f7f2 0%, var(--bg) 100%);
  min-height: 100vh;
}

.page-shell {
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1;
}

.primary-button,
.ghost {
  border-radius: 999px;
  padding: 12px 18px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent) 0%, #0f4c5c 100%);
  color: white;
  box-shadow: var(--shadow);
}

.ghost {
  background: rgba(15, 23, 42, 0.06);
  color: var(--ink);
}

.ghost.danger {
  background: rgba(185, 28, 28, 0.08);
  color: var(--danger);
}

.primary-button:hover,
.ghost:hover {
  transform: translateY(-1px);
}

.board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  align-items: start;
}

.column {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 16px;
  box-shadow: var(--shadow);
  min-height: 440px;
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.column-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.column-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--accent);
}

.column-title {
  font-size: 18px;
  margin: 0;
}

.column-count {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.column-cards {
  display: grid;
  gap: 12px;
  min-height: 340px;
}

.column-cards.drag-over {
  outline: 2px dashed rgba(15, 118, 110, 0.35);
  outline-offset: 4px;
  border-radius: 20px;
}

.card {
  border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 18px;
  padding: 14px;
  background: white;
  cursor: grab;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.07);
}

.card:active {
  cursor: grabbing;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.priority-pill,
.source-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.priority-pill {
  background: rgba(15, 118, 110, 0.12);
  color: var(--accent-strong);
}

.source-pill {
  background: rgba(20, 33, 61, 0.08);
  color: var(--ink);
}

.card-title {
  margin: 0 0 8px;
  font-size: 18px;
}

.card-description {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.card-meta {
  display: grid;
  gap: 8px;
  margin: 0;
  font-size: 12px;
}

.card-meta div {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.card-meta dt {
  color: var(--muted);
}

.card-meta dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
}

.card-dialog {
  border: 0;
  border-radius: 28px;
  padding: 0;
  width: min(96vw, 520px);
  box-shadow: var(--shadow);
}

.card-dialog::backdrop {
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(6px);
}

.card-form {
  display: grid;
  gap: 14px;
  padding: 24px;
}

.card-form h2 {
  margin: 0 0 6px;
}

.card-form label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.card-form input,
.card-form textarea,
.card-form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  font: inherit;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 0;
  margin: 8px 0 0;
}

.hidden {
  display: none;
}

@media (max-width: 720px) {
  .page-shell {
    padding: 18px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .board {
    grid-template-columns: 1fr;
  }

  .dialog-actions {
    flex-direction: column-reverse;
  }
}