:root {
  
  --clr-primary: #007bff;
  --clr-primary-hover: #0056b3;
  --clr-secondary: #6c757d;
  --clr-secondary-hover: #5a6268;
  --clr-danger: #dc3545;
  --clr-danger-hover: #c82333;
  --clr-text-main: #000;
  --clr-text-light: #333;
  --clr-bg-light: #f8f9fa;
  --clr-bg-dark: #343a40;
  --clr-bg-modal: #fefefe;
  --clr-border-light: #dee2e6;
  --clr-border-medium: #ccc;
  --clr-border-dark: #888;
  --clr-border-table: #e0e0e0;
  --clr-white: #ffffff;
  --clr-holiday-national: #e9b665;
  --clr-holiday-regional: #77d2f0;
  --clr-slider-active: #2196F3;
  --clr-overlay: rgba(0, 0, 0, 0.4);

  
  --container-width: 940px;
  --container-padding: 10px;

 
  --font-family-sans: Arial, Helvetica, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  font-family: var(--font-family-sans);
  color: var(--clr-text-main);
  line-height: 1.6;
  font-size: 16px;
}

.page-content-wrapper { flex: 1 0 auto; }
.content-container { width: 100%; max-width: var(--container-width); margin: 0 auto; box-sizing: border-box; padding: 10px var(--container-padding); }

.site-header { background-color: var(--clr-bg-light); border-bottom: 1px solid var(--clr-border-light); padding: 0.5rem 0; }
.site-header .header-footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--container-padding); font-weight: bold; }
.site-header p { margin: 0.5rem 0; font-size: 1.75rem; margin-right: 20px; }
.header-nav ul { margin: 0; padding: 0; list-style: none; }
.header-nav li { display: inline-block; margin: 0 10px; }
.header-nav a { text-decoration: none; color: var(--clr-primary); font-weight: bold; padding: 5px 0; }
.header-nav a:hover { color: var(--clr-primary-hover); }

.site-footer { background-color: var(--clr-bg-dark); color: var(--clr-bg-light); padding: 2rem 0; margin-top: 2rem; font-size: 0.9em; }
.site-footer .header-footer-content { display: flex; justify-content: center; align-items: flex-start; flex-wrap: wrap; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--container-padding); }
.footer-section { margin: 1rem; min-width: 200px; text-align: center; }
.footer-section h4 { margin-top: 0; margin-bottom: 0.75rem; color: var(--clr-white); border-bottom: 1px solid #495057; padding-bottom: 0.5rem; }
.footer-nav ul { margin: 0; padding: 0; list-style: none; }
.footer-nav li { margin-bottom: 0.5rem; }
.footer-nav a, .footer-copyright a { text-decoration: none; color: #f8f9fb; }
.footer-nav a:hover, .footer-copyright a:hover { color: var(--clr-white); text-decoration: underline; }
.footer-copyright { width: 100%; text-align: center; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #495057; font-size: 0.8em; color: var(--clr-secondary); }

header.calendar-controls { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-bottom: 6px; }
header.calendar-controls h1 { padding: 20px 0; font-size: 28px; margin: 0; }
.controls { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 10px; font-size: 16px; margin-top: 5px; }
.year { font-weight: 700; }

.calendar-main-title {
  text-align: center;
  font-size: 2rem;
  margin-block: 1rem 1.5rem;
  font-weight: 600;
}

.calendar { display: grid; grid-template-columns: repeat(3, 1fr); grid-gap: 8px; }
.month { border: 1px solid var(--clr-text-main); padding: 6px; box-sizing: border-box; border-radius: 6px; }
.month h3 { text-align: center; margin: 0 0 6px 0; font-size: 16px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { width: 14.285%; text-align: left; padding: 4px; min-height: 45px; vertical-align: top; border: 1px solid var(--clr-border-table); }
thead th { font-weight: 700; border-bottom: 1px solid var(--clr-text-main); text-align: center; }
.sunday { color: var(--clr-text-main); font-weight: 600; }
.day-number { font-weight: bold; font-size: 11px; display: block; }
.calendar td[data-date] { cursor: pointer; }


.holiday.national { background: var(--clr-holiday-national); font-weight: 700; }
.holiday.regional { background: var(--clr-holiday-regional); font-weight: 700; }

.legend { margin-top: 6px; font-size: 11px; }
#holidayList { margin-top: 15px; font-size: 16px; text-align: left; }

.holiday-title { margin-top: 25px; font-size: 26px; font-weight: bold; margin-bottom: 10px; }
.legend-item { display: inline-block; margin-right: 15px; }
.legend-color { display: inline-block; width: 15px; height: 15px; margin-right: 5px; vertical-align: middle; }

 #holidayList table th { text-align: left; }

.btn { padding: 8px 12px; border-radius: 6px; border: none; background-color: var(--clr-primary); color: var(--clr-white); cursor: pointer; font-size: 16px; font-weight: 500; white-space: nowrap; transition: background-color 0.2s ease, transform 0.1s ease; }
.btn:hover { transform: translateY(-1px); background-color: var(--clr-primary-hover); }
.btn:active { transform: translateY(0); }
.btn.btn-secondary { background-color: var(--clr-secondary); }
.btn.btn-secondary:hover { background-color: var(--clr-secondary-hover); }
#delete-note { background-color: var(--clr-danger); }
#delete-note:hover { background-color: var(--clr-danger-hover); }

#yearInput { padding: 8px; font-size: 16px; border-radius: 6px; border: 1px solid #777; width: 80px; }

.switch-container { display: inline-flex; align-items: center; gap: 8px; margin: 0 5px; }
.switch { position: relative; display: inline-block; width: 60px; height: 34px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--clr-border-medium); transition: .4s; }
.slider:before { position: absolute; content: ""; height: 26px; width: 26px; left: 4px; bottom: 4px; background-color: var(--clr-white); transition: .4s; }
input:checked+.slider { background-color: var(--clr-slider-active); }
input:checked+.slider:before { transform: translateX(26px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

.calendar td.has-note { font-weight: bold; }
.note-text-display { font-size: 9px; line-height: 1.2; color: var(--clr-text-light); overflow-wrap: break-word; white-space: normal; display: block; margin-top: 2px; max-height: 40px; overflow: hidden; }

.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: var(--clr-overlay); }
.modal-content { background-color: var(--clr-bg-modal); margin: 15% auto; padding: 20px; border: 1px solid var(--clr-border-dark); width: 80%; max-width: 400px; border-radius: 8px; position: relative; box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2); }
.close-button { color: #aaa; position: absolute; top: 10px; right: 15px; font-size: 28px; font-weight: bold; }
.close-button:hover, .close-button:focus { color: var(--clr-text-main); text-decoration: none; cursor: pointer; }
#note-text { width: 100%; height: 100px; margin: 10px 0; box-sizing: border-box; padding: 8px; border-radius: 4px; border: 1px solid var(--clr-border-medium); resize: vertical; }
.modal-buttons { text-align: right; display: flex; justify-content: flex-end; gap: 10px; }

.color-picker { margin-bottom: 15px; }
.color-swatch { display: inline-block; width: 24px; height: 24px; border-radius: 50%; margin-right: 8px; cursor: pointer; border: 2px solid var(--clr-border-medium); transition: transform 0.2s; }
.color-swatch.selected { border-color: var(--clr-text-main); transform: scale(1.2); }
.color-swatch[data-color="#ffffff"] { background-color: #ffffff; }
.color-swatch[data-color="#ffadad"] { background-color: #ffadad; }
.color-swatch[data-color="#ffd6a5"] { background-color: #ffd6a5; }
.color-swatch[data-color="#fdffb6"] { background-color: #fdffb6; }
.color-swatch[data-color="#caffbf"] { background-color: #caffbf; }
.color-swatch[data-color="#9bf6ff"] { background-color: #9bf6ff; }
.color-swatch[data-color="#a0c4ff"] { background-color: #a0c4ff; }
.color-swatch[data-color="#bdb2ff"] { background-color: #bdb2ff; }

.calendar.monthly-view { display: block; }
.calendar.monthly-view .month { display: none; border: none; padding: 0; }
.calendar.monthly-view .month.active { display: block; }
.calendar.monthly-view .month table { font-size: 14px; }
.calendar.monthly-view .month th, .calendar.monthly-view .month td { height: 100px; }
.calendar.monthly-view .day-number { font-size: 14px; }
.calendar.monthly-view .note-text-display { font-size: 11px; max-height: none; overflow: visible; }
.calendar.monthly-view .month td:hover { background-color: #f5f5f5; }
.calendar.monthly-view .month h3 { display: none; }


@media (max-width: 768px) {
  .calendar { grid-template-columns: repeat(2, 1fr); }
  .site-header .header-footer-content, .site-footer .header-footer-content { justify-content: center; }
  .footer-section { text-align: center; }
  header.calendar-controls { flex-direction: column; align-items: flex-start; gap: 15px; }
  .controls { justify-content: flex-start; }
}
@media (max-width: 480px) {
  .calendar { grid-template-columns: repeat(1, 1fr); }
  header.calendar-controls h1 { font-size: 24px; }
}


@page { size: A4 landscape; margin: 12mm; }

@media print {
  .site-header, .site-footer, .controls, #monthlyNav, .modal, .how-to-use { display: none !important; }
  .content-container { padding: 0; max-width: 100%; border: none; }
  .month { page-break-inside: avoid; }
  .note-text-display { max-height: none; overflow: visible; font-size: 8pt; color: var(--clr-text-main) !important; }
  .day-number { font-size: 10pt; }
  body { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}