/* Fira Code: https://github.com/tonsky/FiraCode */
@import url('https://cdn.staticdelivr.com/gfonts/css2?family=Fira+Code:wght@300..700&display=swap');

/* Light theme variables */
:root {
  --background: #fffbf7;
  --foreground: #45372b;
  --accent: #df7020;
  --radius: 0;
  --font-size: 1rem;
  --line-height: 1.54em;
}

/* Dark theme variables - activated via data attribute */
[data-theme="dark"] {
  --background: #1a170f;
  --foreground: #eceae5;
  --accent: #32858b;
}

/* Respect system preference by default */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --background: #1a170f;
    --foreground: #eceae5;
    --accent: #32858b;
  }
}

html {
  box-sizing: border-box;
}

*,
*:before,
*:after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  font-family:
    "Fira Code",
    "JetBrains Mono",
    Monaco,
    Consolas,
    "Ubuntu Mono",
    monospace;
  font-size: var(--font-size);
  font-weight: 400;
  line-height: var(--line-height);
  background-color: var(--background);
  color: var(--foreground);
  text-rendering: optimizeLegibility;
  font-variant-ligatures: contextual;
  -webkit-overflow-scrolling: touch;
  -webkit-text-size-adjust: 100%;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header with theme toggle */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
  font-size: calc(var(--font-size) * 1.45);
  letter-spacing: 0;
  margin: 0;
}

h1 a {
  color: var(--foreground);
  text-decoration: none;
  transition: color 0.2s ease;
}

h1 a:hover {
  color: var(--accent);
}

h1 a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: border-bottom-color 0.2s ease;
}

.header-nav a:hover {
  border-bottom-color: var(--accent);
}

.header-nav a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Theme toggle button */
#theme-toggle {
  position: relative;
  font: inherit;
  font-weight: bold;
  background: transparent;
  color: var(--accent);
  padding: 5px 18px;
  border: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s linear;
  appearance: none;
  cursor: pointer;
  outline: none;
}

#theme-toggle:hover {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}

#theme-toggle:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

#theme-icon {
  font-size: 1.2em;
  display: inline-block;
}

/* Main content */
main {
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

/* View toggle buttons */
#view-toggle,
#view-toggle-list {
  position: relative;
  font: inherit;
  font-weight: bold;
  background: transparent;
  color: var(--accent);
  padding: 5px 18px;
  border: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s linear;
  appearance: none;
  cursor: pointer;
  outline: none;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

#view-toggle:hover,
#view-toggle-list:hover {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}

#view-toggle:focus-visible,
#view-toggle-list:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.hidden {
  display: none !important;
}

/* Calendar wrapper */
.calendar-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

/* Calendar controls */
.calendar-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 15px;
}

.calendar-controls button {
  position: relative;
  font: inherit;
  font-weight: bold;
  background: transparent;
  color: var(--accent);
  padding: 5px 18px;
  border: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s linear;
  appearance: none;
  cursor: pointer;
  outline: none;
  min-width: 50px;
}

.calendar-controls button:hover {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}

.calendar-controls button:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

#current-month {
  font-size: calc(var(--font-size) * 1.35);
  margin: 0;
  text-align: center;
  flex: 1;
}

/* Calendar grid */
.calendar-grid {
  border: 2px solid var(--foreground);
  background-color: var(--background);
}

.calendar-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border-bottom: 2px solid var(--foreground);
}

.day-label {
  padding: 10px;
  text-align: center;
  font-weight: 600;
  color: var(--foreground);
  text-transform: uppercase;
  font-size: 0.85em;
  letter-spacing: 0.05em;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  min-height: 500px;
}

.calendar-day {
  border: 1px solid color-mix(in srgb, var(--foreground) 25%, transparent);
  padding: 8px;
  min-height: 100px;
  position: relative;
  background-color: var(--background);
  transition: background-color 0.15s ease;
}

.calendar-day:hover {
  background: color-mix(in srgb, var(--foreground) 5%, transparent);
}

.calendar-day.other-month {
  opacity: 0.4;
}

.calendar-day.today {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.day-number {
  font-weight: 600;
  margin-bottom: 5px;
  display: block;
}

.event {
  font-size: 0.75em;
  padding: 2px 4px;
  margin: 2px 0;
  border-left: 3px solid;
  cursor: pointer;
  transition: opacity 0.15s ease;
  line-height: 1.2;
}

.event:hover {
  opacity: 0.8;
}

.event.cancelled {
  text-decoration: line-through;
  opacity: 0.6;
}

/* Event details modal */
.event-details {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--background);
  border: 4px solid var(--accent);
  padding: 30px;
  max-width: 500px;
  width: 90%;
  z-index: 1000;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.event-details.hidden {
  display: none;
}

.event-details h3 {
  margin-top: 0;
  color: var(--accent);
}

.event-details p {
  margin: 10px 0;
}

#close-details {
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  font-size: 2em;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  line-height: 1;
}

#close-details:hover {
  opacity: 0.7;
}

/* List view */
.list-view-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.list-view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 15px;
}

.list-view-wrapper h2 {
  font-size: calc(var(--font-size) * 1.35);
  margin: 0;
  color: var(--accent);
}

.event-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.event-list-item {
  border: 2px solid var(--foreground);
  padding: 20px;
  background: var(--background);
  transition: background-color 0.15s ease;
  cursor: pointer;
}

.event-list-item:hover {
  background: color-mix(in srgb, var(--foreground) 5%, transparent);
}

.event-list-item.cancelled {
  opacity: 0.6;
}

.event-date {
  font-size: 0.85em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.event-title {
  font-size: calc(var(--font-size) * 1.1);
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--foreground);
}

.event-description {
  line-height: 1.6;
  margin-bottom: 8px;
  color: var(--foreground);
}

.event-meta {
  font-size: 0.9em;
  color: color-mix(in srgb, var(--foreground) 80%, transparent);
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 10px;
}

.event-meta span {
  display: inline-block;
}

.event-meta a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: opacity 0.2s ease;
}

.event-meta a:hover {
  opacity: 0.7;
}

.event-meta a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.event-details a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: opacity 0.2s ease;
}

.event-details a:hover {
  opacity: 0.7;
}

.event-details a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Add to Calendar buttons */
.add-to-calendar-btn,
.add-to-calendar-btn-inline {
  position: relative;
  font: inherit;
  font-weight: bold;
  background: var(--accent);
  color: var(--background);
  padding: 8px 20px;
  border: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s linear, color 0.15s linear;
  appearance: none;
  cursor: pointer;
  outline: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 15px;
}

.add-to-calendar-btn:hover,
.add-to-calendar-btn-inline:hover {
  background: transparent;
  color: var(--accent);
}

.add-to-calendar-btn:focus-visible,
.add-to-calendar-btn-inline:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Content wrapper for about page */
.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.breadcrumb {
  margin-bottom: 30px;
}

.breadcrumb a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: border-bottom-color 0.2s ease;
}

.breadcrumb a:hover {
  border-bottom-color: var(--accent);
}

article h2 {
  font-size: calc(var(--font-size) * 1.75);
  margin-bottom: 30px;
  color: var(--accent);
}

article h3 {
  font-size: calc(var(--font-size) * 1.35);
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--foreground);
}

article section {
  margin-bottom: 30px;
}

article p {
  margin-bottom: 15px;
  line-height: 1.7;
}

article ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

article li {
  margin-bottom: 10px;
  line-height: 1.7;
}

article a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: opacity 0.2s ease;
}

article a:hover {
  opacity: 0.7;
}

article a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 20px 20px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 2px solid color-mix(in srgb, var(--foreground) 25%, transparent);
  margin-top: 40px;
}

footer p {
  margin: 0;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: border-bottom-color 0.2s ease;
}

footer a:hover {
  border-bottom-color: var(--accent);
}

footer a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .calendar-container iframe {
    height: 500px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 0.9rem;
  }

  h1 {
    font-size: calc(0.9rem * 1.45);
  }

  .calendar-container iframe {
    height: 400px;
  }
}