* {
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
    font-family: monospace;
}

body {
    background: #f9f9f9; 
    color: #111; 
    padding: 1rem; 
}

header {
    text-align: center;
    padding: 15px;
}

.tracker { 
    max-width: 680px; 
    margin: 0 auto; 
}

.section { 
    background: #fff; 
    border: 1px solid #e5e5e5; 
    border-radius: 12px; 
    padding: 1.25rem; 
    margin-bottom: 1rem; 
}

.section-title { 
    font-size: 13px; 
    font-weight: 500; 
    color: #888; 
    text-transform: uppercase; 
    letter-spacing: 0.05em; 
    margin-bottom: 1rem; 
}

.timer-display { 
    font-size: 48px; 
    font-weight: 500; 
    color: #111; 
    letter-spacing: -1px; 
    text-align: center; 
    padding: 1rem 0; 
}

.timer-display.running { 
    color: #1D9E75; 
}

.btn-row { 
    display: flex; 
    gap: 8px; 
    justify-content: center; 
    margin-top: 0.5rem; 
}

button { 
    background: transparent; 
    border: 1px solid #ddd; 
    border-radius: 8px; 
    padding: 8px 20px; 
    font-size: 14px; 
    font-weight: 500; 
    color: #111; 
    cursor: pointer; 
    transition: background 0.15s; 
}

button:hover { 
    background: #f5f5f5; 
}

button:active { 
    transform: scale(0.98); 
}

button.primary { 
    background: #1D9E75; 
    border-color: #1D9E75; 
    color: #fff; 
}

button.primary:hover { 
    background: #0F6E56; 
}

button.danger { 
    border-color: #f5c1c1; 
    color: #c0392b; 
}

button.danger:hover { 
    background: #fff0f0; 
}

button:disabled { 
    opacity: 0.4; 
    cursor: not-allowed; 
}

.form-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 12px; 
}
.form-group { 
    display: flex; 
    flex-direction: column; 
    gap: 6px; 
}

.form-group.full { 
    grid-column: 1 / -1; 
}

label { 
    font-size: 13px; 
    color: #666; 
}

input, select, textarea { 
    background: #f9f9f9; 
    border: 1px solid #e5e5e5; 
    border-radius: 8px; 
    padding: 8px 10px; 
    font-size: 14px; 
    color: #111; 
    width: 100%; 
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #aaa;
}

textarea {
  resize: vertical;
  min-height: 60px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 12px;
  border: 1px solid #e5e5e5;
  cursor: pointer;
  color: #666;
  transition: all 0.15s;
}

.tag.selected {
  background: #E1F5EE;
  border-color: #5DCAA5;
  color: #0F6E56;
}

.stars {
  display: flex;
  gap: 6px;
}

.star {
  font-size: 20px;
  cursor: pointer;
  color: #ccc;
  transition: color 0.1s;
}

.star.lit {
  color: #EF9F27;
}

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

.session-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: #f9f9f9;
  border-radius: 8px;
  border: 1px solid #e5e5e5;
}

.session-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #1D9E75;
  margin-top: 5px;
  flex-shrink: 0;
}

.session-info {
  flex: 1;
  min-width: 0;
}

.session-piece {
  font-size: 14px;
  font-weight: 500;
  color: #111;
}

.session-meta {
  font-size: 12px;
  color: #888;
  margin-top: 2px;
}

.session-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.session-tag {
  font-size: 11px;
  padding: 2px 7px;
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 99px;
  color: #888;
}

.session-right {
  text-align: right;
  flex-shrink: 0;
}

.session-duration {
  font-size: 14px;
  font-weight: 500;
  color: #111;
}

.session-stars {
  font-size: 11px;
  color: #EF9F27;
  letter-spacing: 1px;
}

.session-notes {
  font-size: 12px;
  color: #888;
  margin-top: 4px;
  font-style: italic;
}

.empty {
  text-align: center;
  padding: 2rem;
  color: #bbb;
  font-size: 14px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 1rem;
}

.stat {
  background: #f5f5f5;
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.stat-val {
  font-size: 22px;
  font-weight: 500;
  color: #111;
}

.stat-label {
  font-size: 11px;
  color: #888;
  margin-top: 2px;
}

.delete-btn {
  background: none;
  border: none;
  padding: 4px;
  color: #bbb;
  cursor: pointer;
  font-size: 16px;
}

.delete-btn:hover {
  color: #c0392b;
}

.save-msg {
  font-size: 13px;
  color: #1D9E75;
  text-align: center;
  margin-top: 8px;
  opacity: 0;
  transition: opacity 0.3s;
}

.save-msg.show {
  opacity: 1;
}

footer {
    text-align: center;
    color: #bbb;
    font-style: italic;
}

footer a {
    color: #bbb;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}