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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f5f5f5;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
}

header {
  background: #2c3e50;
  color: #fff;
  padding: 16px 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  text-align: center;
}

header h1 {
  font-size: 1.4rem;
  letter-spacing: 0.05em;
}

/* 追加フォーム */
.add-form {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.add-form h2 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: #555;
}

.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.form-row label {
  flex: 1;
  display: flex;
  flex-direction: column;
  font-size: 0.82rem;
  color: #666;
  gap: 4px;
}

.form-row input {
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
  width: 100%;
}

.form-row input:focus {
  outline: none;
  border-color: #2980b9;
}

.btn-add {
  width: 100%;
  padding: 11px;
  background: #2980b9;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s;
}

.btn-add:hover {
  background: #1a6fa3;
}

/* テーブル一覧 */
.table-list h2 {
  font-size: 1rem;
  color: #555;
}

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

.count {
  font-size: 0.82rem;
  color: #888;
}

.empty-msg {
  text-align: center;
  color: #aaa;
  padding: 40px 0;
  font-size: 0.9rem;
}

/* テーブルカード */
.card {
  background: #fff;
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  border-left: 5px solid #27ae60;
  transition: border-color 0.3s;
}

.card.warn {
  border-left-color: #e67e22;
}

.card.danger {
  border-left-color: #e74c3c;
}

.card.timeup {
  border-left-color: #888;
  background: #f9f9f9;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: bold;
}

.card-sub {
  font-size: 0.8rem;
  color: #888;
  margin-top: 2px;
}

.btn-delete {
  background: none;
  border: none;
  cursor: pointer;
  color: #bbb;
  font-size: 1.2rem;
  line-height: 1;
  padding: 0;
}

.btn-delete:hover {
  color: #e74c3c;
}

.timer-display {
  font-size: 2rem;
  font-weight: bold;
  letter-spacing: 0.05em;
  color: #27ae60;
  text-align: center;
  padding: 6px 0;
}

.card.warn .timer-display {
  color: #e67e22;
}

.card.danger .timer-display {
  color: #e74c3c;
  animation: blink 1s step-end infinite;
}

.card.timeup .timer-display {
  color: #888;
  font-size: 1.5rem;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.progress-bar {
  height: 6px;
  background: #eee;
  border-radius: 3px;
  margin-top: 8px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 3px;
  background: #27ae60;
  transition: width 1s linear, background 0.3s;
}

.card.warn .progress-fill {
  background: #e67e22;
}

.card.danger .progress-fill {
  background: #e74c3c;
}

.card.timeup .progress-fill {
  background: #ccc;
  width: 0% !important;
}

@media (max-width: 400px) {
  .form-row {
    flex-direction: column;
    gap: 8px;
  }
}