/* ===== 기존 스타일 유지 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary-color: #5B7FFF;
  --light-bg: #F8F9FF;
  --card-bg: #FFFFFF;
  --card-shadow: 0 4px 20px rgba(91, 127, 255, 0.1);
  --text-dark: #2C3E50;
  --text-light: #6C7A89;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--light-bg);
  min-height: 100vh;
  padding: 20px;
  line-height: 1.6;
  color: var(--text-dark);
}

.container {
  max-width: 800px; /* 본문 가독성 위해 조금 넓힘 */
  margin: 0 auto;
}

header {
  text-align: center;
  color: var(--text-dark);
  margin-bottom: 40px;
  animation: fadeInDown 0.8s ease;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 15px;
  font-weight: 700;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
}

.planner-list {
  display: grid;
  gap: 12px;
  animation: fadeInUp 1s ease 0.2s both;
}

.planner-item {
  padding: 20px;
  background: var(--card-bg);
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
  border: 1px solid #EFF2F7;
  box-shadow: var(--card-shadow);
}

.planner-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(91, 127, 255, 0.15);
}

.item-content {
  display: flex;
  align-items: center;
  gap: 15px;
}

.item-icon {
  font-size: 2rem;
}

.item-label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 1rem;
  margin-bottom: 4px;
}

.item-target {
  color: var(--text-light);
  font-size: 0.9rem;
}

.item-dday {
  background: var(--primary-color);
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.loading-container {
  display: flex;
  justify-content: center;
  padding: 50px 0;
}

.loading {
  width: 30px;
  height: 30px;
  border: 4px solid rgba(91, 127, 255, 0.2);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
  h1 { font-size: 1.8rem; }
  .planner-item { padding: 15px; }
  .item-icon { font-size: 1.5rem; }
  .item-label { font-size: 0.95rem; }
}


/* ===== 본문(article) 스타일 추가 ===== */

main.content {
  margin-top: 50px;
}

main.content section {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: var(--card-shadow);
  border: 1px solid #EFF2F7;
}

main.content h1 {
  font-size: 1.6rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

main.content h2 {
  font-size: 1.2rem;
  color: var(--text-dark);
  margin: 15px 0 8px;
  font-weight: 600;
}

main.content p {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 10px;
}

main.content ul {
  list-style: disc inside;
  margin: 10px 0 15px 5px;
  color: var(--text-dark);
}

main.content li {
  margin: 6px 0;
  font-size: 0.95rem;
}

main.content strong {
  color: var(--primary-color);
}

main.content section:hover {
  transform: translateY(-2px);
  transition: 0.3s ease;
  box-shadow: 0 8px 25px rgba(91, 127, 255, 0.12);
}