@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700&display=swap');

:root {
  --bg: #0b1224;
  --panel: rgba(255,255,255,0.06);
  --card: rgba(255,255,255,0.08);
  --accent: #22d3ee;
  --accent-2: #f59e0b;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --danger: #ef4444;
  --success: #34d399;
  --border: rgba(255,255,255,0.1);
  --shadow: 0 18px 55px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.08), transparent 25%),
              radial-gradient(circle at 80% 0%, rgba(245, 158, 11, 0.08), transparent 28%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: inherit; }
a.x-link {
  color: #a5f3fc;
  text-decoration: none;
  border-bottom: 1px dashed rgba(165, 243, 252, 0.4);
}
a.x-link:hover { color: var(--accent); }

#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 18px 32px;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 12px;
  z-index: 5;
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand .dot {
  width: 12px;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(34, 211, 238, 0.12);
}

select, input, button, textarea {
  font: inherit;
  color: var(--text);
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 10px;
}

.control label { font-size: 13px; color: var(--muted); }

select, input[type="date"] {
  background: transparent;
  border: none;
  color: var(--text);
  outline: none;
}

button {
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  color: #0b1224;
  border: none;
  padding: 9px 13px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 24px rgba(34, 211, 238, 0.25);
}

button.secondary {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

button:hover { transform: translateY(-1px); }
button:active { transform: translateY(0); }

#layout {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

#week-view {
  display: grid;
  gap: 12px;
}

.day-card { overflow-x: auto; }

.day-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.day-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}

.day-card h3 {
  margin: 0 0 10px;
  font-size: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.day-card h3 span.date {
  font-size: 12px;
  color: var(--muted);
}

.day-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.day-meta label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
}

.day-meta input {
  border: none;
  background: transparent;
  color: var(--text);
  padding: 0;
}

.day-meta input[type="number"] {
  width: 72px;
}

.day-meta input[type="date"] {
  min-width: 140px;
}

.day-meta .unit {
  color: var(--muted);
}

.day-meta .mini-btn {
  border: 1px solid var(--border);
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent);
  padding: 6px 10px;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  box-shadow: 0 6px 14px rgba(34, 211, 238, 0.2);
}

.day-meta .mini-btn:hover { transform: translateY(-1px); }
.day-meta .mini-btn:active { transform: translateY(0); }

.session-grid {
  display: grid;
  grid-template-columns: 22px 1.4fr 0.9fr repeat(5, 0.65fr) 0.6fr 1.2fr;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}

.session-grid.header {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

.session-grid:last-child { border-bottom: none; }

input[type="number"], input[type="text"] {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  width: 100%;
}

.set-placeholder {
  color: var(--muted);
  text-align: center;
}

.set-placeholder input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

input.set-weight::-webkit-outer-spin-button,
input.set-weight::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

textarea.note {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 100%;
  min-height: 60px;
  padding: 8px 10px;
  resize: vertical;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent);
  border: 1px solid rgba(34, 211, 238, 0.3);
  font-weight: 600;
  font-size: 12px;
}

#stats-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
  height: fit-content;
}

.stat-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

.stat-card h4 {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--muted);
}

.progress {
  height: 10px;
  background: rgba(255,255,255,0.1);
  border-radius: 999px;
  overflow: hidden;
}

.progress .bar {
  height: 100%;
  width: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: width 0.3s ease;
}

.table-mini {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 6px;
  font-size: 13px;
}

.table-mini .delta.up { color: var(--success); }
.table-mini .delta.down { color: var(--danger); }

#toast {
  position: fixed;
  bottom: 18px;
  right: 18px;
  background: #0f172a;
  color: #e5e7eb;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

#toast.show {
  opacity: 1;
  transform: translateY(0);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 16px;
  z-index: 20;
}

.modal.hidden { display: none; }

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  width: min(720px, 100%);
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin: 10px 0 14px;
}

.form-grid label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.form-grid input {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
}

.form-grid input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.muted {
  color: var(--muted);
}

.small { font-size: 12px; }

button.loading {
  opacity: 0.6;
  pointer-events: none;
}

@media (max-width: 900px) {
  #layout { grid-template-columns: 1fr; }
  header { position: static; }
  .session-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .session-grid.header { display: none; }
  .session-grid { gap: 8px; align-items: start; }
  .session-grid input { width: 100%; }
}

@media (max-width: 640px) {
  #app { padding: 16px; }
  header { gap: 8px; }
  button { width: 100%; }
  .control { width: 100%; justify-content: space-between; }
}