:root {
  --bg: #0f172a;
  --panel: rgba(15, 23, 42, 0.78);
  --panel-2: rgba(30, 41, 59, 0.78);
  --text: #e5eefc;
  --muted: #a9b8d0;
  --line: rgba(148, 163, 184, 0.18);
  --accent: #60a5fa;
  --accent-2: #93c5fd;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --shadow: 0 20px 45px rgba(2, 8, 23, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.12), transparent 24%),
    linear-gradient(180deg, #020617 0%, #0f172a 100%);
}

button, input { font: inherit; }

.app {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.hero { margin-bottom: 20px; }

.eyebrow {
  margin: 0 0 8px;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--accent-2);
}

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1.05;
}

h2 { margin: 0; font-size: 20px; }

.lead {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.7;
  max-width: 780px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  margin-bottom: 18px;
}

.note {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field span {
  color: var(--muted);
  font-size: 14px;
}

input {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 14px;
  outline: none;
}

input:focus {
  border-color: rgba(96, 165, 250, 0.8);
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.12);
}

button {
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  cursor: pointer;
  color: white;
  background: rgba(148, 163, 184, 0.24);
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  opacity: 0.95;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

button.primary { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
button.ghost {
  background: rgba(148, 163, 184, 0.14);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.16);
}
button.small { padding: 9px 14px; font-size: 14px; }
button.success { background: linear-gradient(135deg, #059669, #34d399); }
button.warning { background: linear-gradient(135deg, #d97706, #fbbf24); color: #1f2937; }
button.danger { background: linear-gradient(135deg, #ef4444, #f87171); }

.danger-text { color: #fecaca; }

.section-head, .controls-row, .inline-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.section-head { margin-bottom: 18px; }
.controls-row { margin-top: 16px; justify-content: flex-start; }
.inline-actions { justify-content: flex-end; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 14px;
}

.metric-card {
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.65);
  border-radius: 20px;
  padding: 18px;
}

.metric-card.highlight {
  border-color: rgba(96, 165, 250, 0.4);
  box-shadow: inset 0 0 0 1px rgba(96, 165, 250, 0.15);
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.metric-card strong {
  display: block;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.1;
}

.metric-sub {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
  min-height: 24px;
}

.progress {
  margin-top: 14px;
  height: 12px;
  background: rgba(148, 163, 184, 0.12);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.progress-fill.alt { background: linear-gradient(135deg, #10b981, #34d399); }

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.pill.muted { background: rgba(148, 163, 184, 0.16); color: #dbe7fb; }
.pill.running { background: rgba(52, 211, 153, 0.16); color: #86efac; }
.pill.done { background: rgba(96, 165, 250, 0.16); color: #bfdbfe; }
.pill.overtime { background: rgba(248, 113, 113, 0.16); color: #fecaca; }

.task-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: end;
}

.task-list, .done-task-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.task-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.52);
  border-radius: 18px;
  padding: 16px;
}

.task-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.task-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
}

.task-meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.task-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.done-accordion {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.45);
  overflow: hidden;
}

.done-accordion summary {
  cursor: pointer;
  padding: 16px 18px;
  list-style: none;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.done-accordion summary::-webkit-details-marker { display: none; }
.done-accordion[open] summary { border-bottom: 1px solid var(--line); }
.done-task-list { padding: 14px; margin-top: 0; }
.done-task-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: rgba(15, 23, 42, 0.4);
}

.empty-state {
  padding: 18px;
  border: 1px dashed rgba(148, 163, 184, 0.22);
  border-radius: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.timeline-section {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.timeline-scale {
  position: relative;
  height: 42px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}

.scale-segment {
  position: absolute;
  top: 20px;
  bottom: 0;
  width: 1px;
  background: rgba(148, 163, 184, 0.22);
}

.scale-mark {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.timeline-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 14px;
  align-items: center;
}

.timeline-label {
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
}

.timeline-track {
  position: relative;
  min-height: 34px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.timeline-block {
  position: absolute;
  top: 4px;
  bottom: 4px;
  border-radius: 999px;
  min-width: 6px;
  opacity: 0.95;
}

.timeline-caption {
  color: var(--muted);
  font-size: 13px;
  margin-top: 2px;
}

@media (max-width: 900px) {
  .dashboard-grid,
  .grid.two,
  .task-form,
  .task-item,
  .timeline-row {
    grid-template-columns: 1fr;
  }

  .task-actions { justify-content: flex-start; }
}

@media (max-width: 760px) {
  .app { padding: 20px 14px 32px; }
  .card { padding: 18px; border-radius: 20px; }
}