:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --border: #d7dce2;
  --text: #1a1d21;
  --muted: #7b8592;
  --primary: #0d6e6e;
  --primary-soft: #dff4f4;
  --chip-bg: #ecf8f8;
  --error: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eef5f7 0%, var(--bg) 100%);
}

.app {
  max-width: 1440px;
  width: min(1440px, 96vw);
  margin: 0 auto;
  padding: 28px 16px 40px;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar h1 {
  margin: 0;
  font-size: 1.5rem;
}

.view-buttons {
  display: flex;
  gap: 8px;
}

.view-button {
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}

.view-button.active {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.form-panel h2,
.calendar-panel h2 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.schedule-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.92rem;
  color: #27303a;
}

input,
select,
.submit-button {
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

.full-row {
  grid-column: 1 / -1;
}

.submit-button {
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 700;
}

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

.form-actions .submit-button,
.form-actions .weekly-button {
  flex: 1;
  height: 40px;
}

.cancel-button {
  width: 100%;
  height: 40px;
  cursor: pointer;
  background: #fff;
  color: #334155;
}

.hidden {
  display: none;
}

.message {
  margin: 10px 0 0;
  min-height: 20px;
  color: var(--primary);
}

.message.error {
  color: var(--error);
}

.upload-box {
  margin-top: 14px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 12px;
  background: #fbfdfd;
}

.upload-box h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.weekly-button {
  border: 1px solid #0f766e;
  background: #e9f8f6;
  color: #0f766e;
  border-radius: 8px;
  height: 40px;
  padding: 0 10px;
  cursor: pointer;
  font-weight: 700;
}

.time-field {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 6px;
}

.time-field span {
  color: #64748b;
}

.upload-guide {
  margin: 0 0 10px;
  color: #4b5563;
  font-size: 0.85rem;
}

.upload-guide code {
  background: #eef2f7;
  border-radius: 4px;
  padding: 1px 4px;
}

.upload-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.upload-controls input[type="file"] {
  flex: 1;
  height: auto;
  padding: 8px;
}

.upload-button {
  border: 1px solid var(--primary);
  background: #fff;
  color: var(--primary);
  border-radius: 8px;
  height: 40px;
  padding: 0 12px;
  cursor: pointer;
  font-weight: 600;
}

.weekly-dialog {
  width: min(760px, 94vw);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0;
}

.weekly-dialog::backdrop {
  background: rgba(15, 23, 42, 0.4);
}

.weekly-form {
  padding: 16px;
  display: grid;
  gap: 12px;
}

.weekly-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.weekly-head h3 {
  margin: 0;
  font-size: 1.05rem;
}

.close-button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  width: 30px;
  height: 30px;
  cursor: pointer;
}

.weekly-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.week-grid {
  display: grid;
  gap: 8px;
}

.week-row {
  display: grid;
  grid-template-columns: 40px 1fr 1fr;
  gap: 8px;
  align-items: center;
}

.week-row > span {
  font-weight: 700;
}

.weekly-help {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.weekly-actions {
  display: flex;
}

.weekly-actions .submit-button {
  width: 100%;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 10px;
}

.calendar-header button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  width: 34px;
  height: 34px;
  cursor: pointer;
}

.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.day-cell {
  min-height: 150px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  overflow: visible;
}

.day-cell.weekend {
  background: #fffaf5;
  border-color: #f2d8ba;
}

.day-cell.muted {
  background: #f7f9fb;
  color: #9ea8b4;
}

.day-number {
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.event-chip {
  margin: 4px 0 0;
  padding: 4px 6px;
  border-radius: 6px;
  background: var(--chip-bg);
  border: 1px solid transparent;
  font-size: 0.78rem;
  line-height: 1.3;
  white-space: normal;
  overflow-wrap: anywhere;
}

.holiday-chip {
  background: #fff1dc;
  border-color: #e1b978;
  color: #7a4a00;
  font-weight: 700;
}

.auto-holiday {
  opacity: 0.9;
}

.list-panel h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.event-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.event-group-header {
  margin-top: 4px;
  padding: 6px 10px;
  border-left: 4px solid var(--primary);
  background: #f3faf9;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
}

.event-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: #fff;
}

.event-row.empty {
  justify-content: center;
  color: var(--muted);
}

.event-info {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.name-tag {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.78rem;
  font-weight: 700;
}

.event-actions {
  display: flex;
  gap: 6px;
}

.action-button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  height: 32px;
  padding: 0 10px;
  cursor: pointer;
}

.action-button.danger {
  border-color: #e9b4b1;
  color: #9c2222;
}

@media (max-width: 900px) {
  .schedule-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .schedule-form {
    grid-template-columns: 1fr;
  }

  .weekday-row,
  .calendar-grid {
    gap: 4px;
  }

  .day-cell {
    min-height: 110px;
    padding: 6px;
  }

  .upload-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .weekly-meta {
    grid-template-columns: 1fr;
  }

  .week-row {
    grid-template-columns: 30px 1fr 1fr;
  }

  .event-row {
    flex-direction: column;
    align-items: flex-start;
  }
}