:root {
  --bg: #07101d;
  --panel: rgba(13, 22, 38, 0.92);
  --panel-2: rgba(18, 29, 49, 0.94);
  --line: rgba(148, 163, 184, 0.18);
  --text: #e8f0fb;
  --muted: #93a6bf;
  --accent: #5eead4;
  --accent-2: #60a5fa;
  --warn: #fbbf24;
  --danger: #fb7185;
  --ok: #34d399;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
  --left-col: 360px;
  --day-width: 22px;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(94, 234, 212, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.16), transparent 24%),
    linear-gradient(180deg, #040812 0%, #07101d 44%, #050a14 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.28;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.75), transparent 92%);
}

.shell {
  width: min(100%, 1360px);
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.hero,
.panel {
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 30px;
  background: rgba(7, 13, 24, 0.76);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero {
  position: relative;
  padding: 28px;
}

.hero::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -120px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(94, 234, 212, 0.22), transparent 66%);
  filter: blur(8px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(94, 234, 212, 0.22);
  background: rgba(94, 234, 212, 0.1);
  color: #bdfdf3;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 800;
}

.hero h1 {
  margin: 16px 0 10px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero p {
  margin: 0;
  max-width: 900px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 16px;
}

.summary-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.summary-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(8, 15, 27, 0.72);
  border: 1px solid rgba(255,255,255,0.08);
}

.summary-card .label {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  margin-bottom: 8px;
}

.summary-card .value {
  display: block;
  font-size: 28px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.summary-card .hint {
  display: block;
  margin-top: 6px;
  color: #c7d6ea;
  font-size: 13px;
}

.panel {
  margin-top: 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 24px 16px;
  border-bottom: 1px solid var(--line);
}

.panel-head h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.panel-head p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  color: #061018;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--line);
}

.status-row,
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px 24px 0;
}

.pill,
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: #dbe8f6;
  font-size: 12px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot.progress { background: linear-gradient(90deg, var(--ok), var(--accent)); }
.dot.backlog { background: linear-gradient(90deg, var(--warn), var(--danger)); }
.dot.paused { background: linear-gradient(90deg, #94a3b8, #cbd5e1); }
.dot.done { background: linear-gradient(90deg, var(--accent-2), #7dd3fc); }

.board {
  padding: 18px 18px 24px;
  overflow-x: auto;
}

.group {
  margin-top: 14px;
  padding: 14px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(18, 29, 49, 0.96), rgba(11, 18, 31, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.group:first-child { margin-top: 0; }

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

.group-title {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
}

.group-meta {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.axis-row,
.task-row {
  display: grid;
  grid-template-columns: var(--left-col) minmax(760px, 1fr);
  gap: 12px;
}

.axis-card,
.timeline-card,
.meta-card {
  border-radius: 22px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: linear-gradient(180deg, rgba(18, 29, 49, 0.96), rgba(11, 18, 31, 0.96));
  overflow: hidden;
}

.meta-card {
  padding: 16px;
  display: grid;
  gap: 10px;
}

.project-name {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.meta-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: #dde7f4;
}

.meta-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
}

.status.progress { color: #86efac; }
.status.backlog { color: #fbbf24; }
.status.paused { color: #cbd5e1; }
.status.done { color: #7dd3fc; }

.note {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(94, 234, 212, 0.08);
  border: 1px solid rgba(94, 234, 212, 0.12);
  color: #d9fdf8;
  font-size: 13px;
  line-height: 1.5;
}

.note.warn {
  background: rgba(251, 191, 36, 0.08);
  border-color: rgba(251, 191, 36, 0.16);
  color: #fff1c2;
}

.timeline-card {
  position: relative;
  min-height: 118px;
  background:
    linear-gradient(180deg, rgba(18, 29, 49, 0.96), rgba(11, 18, 31, 0.96)),
    repeating-linear-gradient(
      90deg,
      rgba(255,255,255,0.02) 0,
      rgba(255,255,255,0.02) calc(var(--day-width) - 1px),
      rgba(255,255,255,0.08) calc(var(--day-width) - 1px),
      rgba(255,255,255,0.08) var(--day-width)
    );
}

.timeline-axis {
  position: relative;
  min-height: 118px;
}

.axis-months,
.axis-days,
.axis-grid {
  position: absolute;
  left: 0;
  right: 0;
}

.axis-months {
  top: 0;
  height: 34px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.axis-month {
  position: absolute;
  top: 8px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #cfdef1;
  text-align: center;
}

.axis-days {
  top: 34px;
  height: 34px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.axis-day {
  position: absolute;
  top: 8px;
  color: #c5d3e5;
  font-size: 11px;
  text-align: center;
  transform: translateX(-50%);
}

.axis-grid {
  top: 68px;
  bottom: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent calc(7 * var(--day-width) - 1px),
      rgba(94, 234, 212, 0.22) calc(7 * var(--day-width) - 1px),
      rgba(94, 234, 212, 0.22) calc(7 * var(--day-width))
    );
  opacity: 0.33;
}

.today-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, #fbbf24, transparent);
  box-shadow: 0 0 20px rgba(251, 191, 36, 0.55);
  transform: translateX(-50%);
  z-index: 1;
}

.milestone {
  position: absolute;
  top: 11px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.7);
  box-shadow: 0 0 0 6px rgba(255,255,255,0.05);
  transform: translateX(-50%);
  z-index: 2;
}

.milestone.start { background: var(--accent); }
.milestone.end { background: var(--warn); }

.bar {
  position: absolute;
  top: 20px;
  height: 40px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #061018;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255,255,255,0.18);
  overflow: hidden;
}

.bar.progress { background: linear-gradient(90deg, var(--ok), var(--accent)); }
.bar.backlog { background: linear-gradient(90deg, var(--warn), var(--danger)); }
.bar.paused { background: linear-gradient(90deg, #94a3b8, #cbd5e1); }
.bar.done { background: linear-gradient(90deg, var(--accent-2), #7dd3fc); }

.bar.undated {
  border-style: dashed;
  background: linear-gradient(90deg, rgba(251, 191, 36, 0.9), rgba(251, 113, 133, 0.9));
}

.bar-label {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-meta {
  position: absolute;
  right: 10px;
  bottom: 5px;
  font-size: 10px;
  font-weight: 700;
  opacity: 0.8;
  white-space: nowrap;
}

.empty-state,
.loading-state,
.error-state {
  padding: 28px;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
}

.empty-state strong,
.error-state strong {
  color: var(--text);
}

@media (max-width: 960px) {
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 16px 12px 32px;
  }

  .hero,
  .panel,
  .group {
    border-radius: 24px;
  }

  .hero {
    padding: 20px;
  }

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

  .panel-head {
    padding: 18px 18px 14px;
  }

  .board {
    padding: 14px;
  }
}