:root {
  --bg-page: #F6F3EC;
  --bg-sidebar: #FBFAF7;
  --bg-card: #FFFFFF;
  --bg-empty-day: #FAF9F5;
  --border: #E4E0D5;
  --text-primary: #242320;
  --text-secondary: #6B6860;
  --text-muted: #9A968C;
  --accent-bg: #E1F5EE;
  --accent-text: #0F6E56;
  --accent-stripe: #1D9E75;
  --accent-contrast: #FFFFFF;
  --status-ready: #3B6D11;
  --status-pending: #B4B2A9;
  --danger-text: #B3261E;
  --danger-bg: #FBEAE9;
  --nav-hover-bg: rgba(36, 35, 32, 0.04);
  --sidebar-backdrop: rgba(36, 35, 32, 0.35);

  --font-heading: "Fraunces", serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 0;
}

.sidebar-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  padding: 0 1.5rem 1.5rem;
}

.nav-modules {
  display: flex;
  flex-direction: column;
}

.nav-utility {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  display: flex;
  flex-direction: column;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
  border-left: 2px solid transparent;
}

.nav-item:hover {
  background: var(--nav-hover-bg);
}

.nav-item-active {
  background: var(--accent-bg);
  color: var(--accent-text);
  border-left-color: var(--accent-stripe);
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-ready {
  background: var(--status-ready);
}

.status-pending {
  background: var(--status-pending);
}

.nav-icon {
  font-size: 1rem;
  line-height: 1;
}

.nav-label {
  font-size: 0.9rem;
}

.main-area {
  flex: 1;
  min-width: 0;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

.page-greeting {
  margin-bottom: 2rem;
}

.page-greeting h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.75rem;
  margin: 0 0 0.25rem;
}

.page-greeting .page-date {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sidebar-toggle {
  display: none;
}

.sidebar-backdrop {
  display: none;
}

.placeholder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2.5rem;
  text-align: center;
}

.placeholder h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.placeholder p {
  color: var(--text-muted);
  margin: 0;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.calendar-header h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
}

.calendar-header button {
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.calendar-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  table-layout: fixed;
  border: 1px solid var(--border);
}

.calendar-table th,
.calendar-table td {
  border: 1px solid var(--border);
  vertical-align: top;
  padding: 0.4rem;
}

.calendar-table th {
  background: var(--bg-sidebar);
  text-align: center;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
}

.day-cell {
  height: 90px;
}

.empty-day {
  background: var(--bg-empty-day);
}

.day-cell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.day-number {
  font-weight: 600;
}

.add-event-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0 0.2rem;
}

.add-event-btn:hover {
  color: var(--accent-text);
}

.event-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.event-list li {
  margin-bottom: 0.15rem;
}

.event-item {
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.event-item:hover {
  color: var(--accent-text);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    z-index: 20;
  }

  .app-shell.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: block;
    position: relative;
    z-index: 21;
    margin: 1rem 1rem 0;
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-card);
    cursor: pointer;
    font-size: 1.1rem;
  }

  .app-shell.sidebar-open .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: var(--sidebar-backdrop);
    z-index: 15;
  }
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--sidebar-backdrop);
  z-index: 30;
}

.modal-box {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 31;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  width: 320px;
  max-width: calc(100vw - 2rem);
}

.modal-box h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0 0 1rem;
}

.form-error {
  background: var(--danger-bg);
  color: var(--danger-text);
  font-size: 0.85rem;
  padding: 0.5rem 0.7rem;
  border-radius: 4px;
  margin: 0 0 1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-field input,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.5rem;
}

.form-row {
  display: flex;
  gap: 0.75rem;
}

.form-row .form-field {
  flex: 1;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.modal-actions-right {
  display: flex;
  gap: 0.5rem;
}

.btn-primary,
.btn-secondary,
.btn-danger {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.4rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--border);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
}

.btn-primary {
  background: var(--accent-stripe);
  color: var(--accent-contrast);
  border-color: var(--accent-stripe);
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-text);
  border-color: var(--danger-bg);
}

.settings-page {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  max-width: 480px;
}

.settings-intro {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0 0 1.25rem;
}

.settings-saved {
  background: var(--accent-bg);
  color: var(--accent-text);
  font-size: 0.85rem;
  padding: 0.5rem 0.7rem;
  border-radius: 4px;
  margin: 0 0 1rem;
}

.settings-section {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  margin: 1.5rem 0 0.75rem;
}

.settings-section:first-of-type {
  margin-top: 0;
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-page);
}

.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  width: 280px;
}

.login-box .sidebar-title {
  padding: 0 0 1.5rem;
}

.login-submit {
  width: 100%;
  margin-top: 0.5rem;
}