:root {
  --bg: #0f1220;
  --bg-alt: #171b2e;
  --card: #1b1f36;
  --card-border: #2a2f4a;
  --text: #eef0fb;
  --text-dim: #9aa0c3;
  --accent: #7c6bff;
  --accent-2: #45d9c9;
  --danger: #ff6b81;
  --success: #45d9c9;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 10% -10%, #23274a 0%, transparent 60%),
              radial-gradient(1000px 500px at 100% 0%, #1a2f3f 0%, transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

.app {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 14px rgba(124, 107, 255, 0.7);
}

.topbar h1 {
  font-size: 24px;
  margin: 0;
  letter-spacing: -0.02em;
}

.topbar-sub {
  color: var(--text-dim);
  font-size: 14px;
}

.layout {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.card {
  background: linear-gradient(180deg, var(--card) 0%, var(--bg-alt) 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
}

/* Stopwatch card */
.stopwatch-card {
  position: relative;
  overflow: hidden;
  text-align: center;
}

.stopwatch-glow {
  position: absolute;
  inset: -40% -40% auto -40%;
  height: 260px;
  background: radial-gradient(closest-side, rgba(124,107,255,0.25), transparent 70%);
  pointer-events: none;
  transition: background 0.4s ease;
}

.stopwatch-glow.running {
  background: radial-gradient(closest-side, rgba(69,217,201,0.35), transparent 70%);
}

.stopwatch-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  font-size: 13px;
  color: var(--text-dim);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
}

.status-badge.running .status-dot {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 1.2s infinite;
}

.status-badge.paused .status-dot {
  background: #f5b942;
  box-shadow: 0 0 8px #f5b942;
}

.status-badge.running { color: var(--success); }
.status-badge.paused { color: #f5b942; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.time-display {
  font-size: clamp(48px, 10vw, 76px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(135deg, #ffffff, #b7c0ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.time-ms {
  margin-top: -14px;
  font-size: 18px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.field-group {
  width: 100%;
  max-width: 420px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-group label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type="text"], input[type="search"], input[type="date"], input[type="time"] {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
  width: 100%;
}

input::placeholder { color: #6b7194; }

input:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,0.08);
}

.controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 12px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
  color: white;
}

.btn:active { transform: scale(0.97); }

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-start {
  background: linear-gradient(135deg, #45d97a, #2fa85c);
  box-shadow: 0 6px 18px rgba(69,217,122,0.4);
}

.btn-start:not(:disabled):hover { box-shadow: 0 8px 22px rgba(69,217,122,0.55); }

.btn-pause {
  background: linear-gradient(135deg, #f5b942, #d99522);
  box-shadow: 0 6px 18px rgba(245,185,66,0.3);
}

.btn-pause:not(:disabled):hover { box-shadow: 0 8px 22px rgba(245,185,66,0.45); }

.btn-stop {
  background: linear-gradient(135deg, var(--danger), #c94a5f);
  box-shadow: 0 6px 18px rgba(255,107,129,0.3);
}

.btn-stop:not(:disabled):hover { box-shadow: 0 8px 22px rgba(255,107,129,0.45); }

.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  color: var(--text);
  padding: 10px 16px;
  font-size: 14px;
}

.btn-ghost:hover { background: rgba(255,255,255,0.1); }

.btn-danger-ghost:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  display: inline-flex;
  transition: background 0.12s ease, color 0.12s ease;
}

.btn-icon:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

.btn-icon.danger:hover {
  color: var(--danger);
}

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.stat-card {
  background: linear-gradient(180deg, var(--card), var(--bg-alt));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.stat-label {
  color: var(--text-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* Table */
.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.table-header h2 {
  margin: 0;
  font-size: 18px;
}

.table-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.search-input {
  width: 200px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--card-border);
}

tbody td {
  padding: 13px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  vertical-align: middle;
}

tbody tr {
  transition: background 0.12s ease;
}

tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

tbody tr.row-new {
  animation: rowIn 0.5s ease;
}

@keyframes rowIn {
  from { background: rgba(124,107,255,0.25); }
  to { background: transparent; }
}

.task-cell {
  font-weight: 600;
}

.duration-cell {
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
  font-weight: 600;
}

.row-actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
}

.empty-state {
  display: none;
  text-align: center;
  padding: 50px 20px;
  color: var(--text-dim);
}

.empty-state.visible { display: block; }

#entriesTable.hidden { display: none; }

.empty-icon {
  font-size: 40px;
  margin-bottom: 10px;
}

.empty-sub {
  font-size: 13px;
  margin-top: 4px;
}

.app-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-top: 30px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8,10,20,0.6);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 20px;
}

.modal-overlay.visible {
  display: flex;
}

.modal {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 26px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.modal h3 {
  margin: 0 0 18px;
}

.modal-row {
  display: flex;
  gap: 12px;
}

.modal .field-group {
  max-width: none;
  margin-bottom: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 10px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 100;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 560px) {
  .controls { flex-direction: column; width: 100%; }
  .btn { width: 100%; justify-content: center; }
  .table-actions { width: 100%; }
  .search-input { flex: 1; width: auto; }
}