/* ========================
   1. CSS Custom Properties
   ======================== */
:root {
  /* Colour Palette */
  --color-primary: #741B1B;
  --color-primary-light: #A12D2D;
  --color-secondary: #F9A825;
  --color-earth: #5D4037;
  --color-cream: #FDFBF7;
  --color-white: #FFFFFF;
  --color-dark: #263238;
  --color-muted: #9E9E9E;

  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Open Sans', sans-serif;
  --font-accent: 'Caveat', cursive;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* ========================
   2. Reset & Base
   ======================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background-color: var(--color-cream);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

/* ========================
   3. Typography
   ======================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

.tagline {
  font-family: var(--font-accent);
  font-size: 1.5rem;
  color: var(--color-secondary);
}

/* ========================
   4. Layout Utilities
   ======================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-lg) 0;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-secondary);
  color: var(--color-dark);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn:hover {
  background-color: #fdd835;
  /* Lighter gold */
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ========================
   5. Navigation
   ======================== */
.navbar {
  position: sticky;
  top: 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  z-index: 1000;
  padding: var(--spacing-xs) 0;
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-sm);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  height: 60px;
  /* Adjust based on logo needs */
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  color: var(--color-white);
  font-weight: 600;
  position: relative;
  font-size: 0.95rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-secondary);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-secondary);
}

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
}

/* Mobile Nav */
@media (max-width: 1024px) {
  .nav-links {
    position: fixed;
    top: 70px;
    /* Navbar height approx */
    left: 0;
    /* Changed from right: -100% to left: -100% logic usually but using left: 0 with transform */
    right: 0;
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    transform: translateX(100%);
    /* Start off-screen */
    transition: transform var(--transition-normal);
    height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .hamburger {
    display: block;
  }
}

/* ========================
   6. Hero
   ======================== */
.hero {
  position: relative;
  height: 80vh;
  /* Adjust as needed */
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-align: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  /* Overlay for text readability */
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--spacing-md);
}

.hero h1 {
  color: var(--color-white);
  font-size: 3rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-sm);
}

.hero .tagline {
  color: var(--color-secondary);
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* ========================
   7. Cards
   ======================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: 1px solid #eee;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* ========================
   8. Page Banners
   ======================== */
.page-banner {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
  text-align: center;
  /* background-image: url('assets/images/wheat-pattern.png'); Placeholder pattern if available */
  background-blend-mode: multiply;
  background-size: cover;
}

.page-banner h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.page-banner .subtitle {
  font-family: var(--font-accent);
  font-size: 1.5rem;
  color: var(--color-secondary);
}

/* ========================
   9. Footer
   ======================== */
.footer {
  background-color: var(--color-earth);
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-sm);
  margin-top: var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer h3 {
  color: var(--color-secondary);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: var(--spacing-xs);
  display: inline-block;
}

.footer ul li {
  margin-bottom: var(--spacing-xs);
}

.footer a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Quick Info Strip */
.quick-info-strip {
  background-color: #2E7D32;
  /* Green mentioned in prompt implicitly as "Green background bar" but strict palette says primary/secondary/earth. Using a dark green for variety or maybe stick to palette? Prompt summary says Colors: Green, Gold, Brown, Cream. I will use a nice green. */
  color: var(--color-white);
  padding: var(--spacing-sm) 0;
  text-align: center;
}

.quick-info-items {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.quick-info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ========================
   10. Animations
   ======================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Section Headers & Title Animations */
.section-header {
  text-align: center;
  margin: 0 auto 3rem;
  position: relative;
  display: block;
  width: fit-content;
  clear: both;
}

.section-header h2 {
  font-family: var(--font-accent);
  font-size: 3rem;
  color: var(--color-primary);
  position: relative;
  z-index: 2;
  margin-bottom: 0;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 10px;
  left: -18px;
  right: -18px;
  height: 20px;
  background: var(--color-secondary);
  opacity: 0.28;
  transform: rotate(-2deg);
  z-index: 1;
  border-radius: 10px;
}

/* Override fade-in to be fade-only for titles */
.section-header.fade-in,
.page-banner .container.fade-in {
  transform: translateY(0) !important;
  opacity: 0;
}

.section-header.fade-in.visible,
.page-banner .container.fade-in.visible {
  transform: translateY(0) !important;
  opacity: 1;
}

@media (max-width: 768px) {
  .section-header h2 {
    font-size: 2.5rem;
  }
}


/* ========================
   11. Media Queries
   ======================== */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1.5rem;
  }

  .section {
    padding: var(--spacing-md) 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .quick-info-items {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
}

/* ========================
   12. Calendar Styles Redesign
   ======================== */

/* Calendar Theme & Category CSS Variables */
:root {
  --cat-academic-bg: rgba(116, 27, 27, 0.07);
  --cat-academic-color: #741B1B;
  --cat-academic-border: rgba(116, 27, 27, 0.18);
  
  --cat-sport-bg: rgba(46, 125, 50, 0.07);
  --cat-sport-color: #2E7D32;
  --cat-sport-border: rgba(46, 125, 50, 0.18);
  
  --cat-culture-bg: rgba(230, 81, 0, 0.07);
  --cat-culture-color: #E65100;
  --cat-culture-border: rgba(230, 81, 0, 0.18);
  
  --cat-holiday-bg: rgba(21, 101, 192, 0.07);
  --cat-holiday-color: #1565C0;
  --cat-holiday-border: rgba(21, 101, 192, 0.18);
}

/* Countdown Widget */
.countdown-section {
  margin-bottom: 3rem;
  animation: cardAppear 0.5s ease-out;
}

.countdown-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 20px 50px rgba(116, 27, 27, 0.08);
  border-radius: 28px;
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}

.countdown-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

.countdown-info {
  flex: 1;
}

.countdown-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.countdown-tag .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-secondary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(249, 168, 37, 0.7);
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(249, 168, 37, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(249, 168, 37, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(249, 168, 37, 0);
  }
}

.countdown-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.countdown-date {
  font-size: 1.1rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.countdown-timer-wrapper {
  display: flex;
  gap: 1rem;
}

.timer-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 70px;
  background: rgba(116, 27, 27, 0.05);
  border: 1px solid rgba(116, 27, 27, 0.08);
  border-radius: 16px;
  padding: 0.75rem 0.5rem;
}

.timer-val {
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.timer-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-dark);
  opacity: 0.75;
  margin-top: 0.25rem;
}

/* Interactive Navigation controls */
.calendar-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

/* Term Tabs style */
.term-tabs {
  display: flex;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.5rem;
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none; /* Hide scrollbar for clean look */
}

.term-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-dark);
  border-radius: 30px;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover {
  background: rgba(116, 27, 27, 0.05);
  color: var(--color-primary);
}

.tab-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 6px 18px rgba(116, 27, 27, 0.25);
}


/* Dynamic Month Card Entrance Animation */
@keyframes cardAppear {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  min-height: 200px;
}

/* Glassmorphism Month Cards */
.month-card {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  padding: 2rem 1.5rem;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: cardAppear 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.month-card.hidden {
  display: none !important;
}

.month-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(116, 27, 27, 0.1);
  border-color: rgba(116, 27, 27, 0.25);
}

.month-card::before {
  display: none; /* Hide old background bar */
}

.month-card h3 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-size: 1.8rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px dashed rgba(116, 27, 27, 0.15);
  text-align: center;
}

.event-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-grow: 1;
}

.event-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.6);
  padding: 0.5rem 0.75rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
  line-height: 1.4;
  color: var(--color-dark);
  transition: all 0.2s ease;
}

.event-list li:hover {
  transform: scale(1.02);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.event-list li.hidden {
  display: none !important;
}

/* Event List Empty State */
.month-card .empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 2rem 1rem;
  flex-grow: 1;
  border: 1px dashed rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.3);
}

.month-card.all-hidden .event-list {
  display: none;
}

.month-card.all-hidden .empty-state {
  display: flex;
}

/* Date Display Badge */
.event-list .date {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
  background: var(--color-secondary);
  color: var(--color-dark);
}

/* Event Category Custom Pill Tags */
.event-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.event-title {
  font-weight: 600;
}

.event-cat-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 4px;
  margin-top: 2px;
  letter-spacing: 0.02em;
}

/* Category Specific Styling */
.event-li.cat-akademie {
  border-left: 3px solid var(--cat-academic-color);
}
.event-li.cat-akademie .date {
  background: var(--cat-academic-bg);
  color: var(--cat-academic-color);
  box-shadow: inset 0 0 0 1px var(--cat-academic-border);
}
.event-li.cat-akademie .event-cat-tag {
  background: var(--cat-academic-bg);
  color: var(--cat-academic-color);
}

.event-li.cat-sport {
  border-left: 3px solid var(--cat-sport-color);
}
.event-li.cat-sport .date {
  background: var(--cat-sport-bg);
  color: var(--cat-sport-color);
  box-shadow: inset 0 0 0 1px var(--cat-sport-border);
}
.event-li.cat-sport .event-cat-tag {
  background: var(--cat-sport-bg);
  color: var(--cat-sport-color);
}

.event-li.cat-kultuur {
  border-left: 3px solid var(--cat-culture-color);
}
.event-li.cat-kultuur .date {
  background: var(--cat-culture-bg);
  color: var(--cat-culture-color);
  box-shadow: inset 0 0 0 1px var(--cat-culture-border);
}
.event-li.cat-kultuur .event-cat-tag {
  background: var(--cat-culture-bg);
  color: var(--cat-culture-color);
}

.event-li.cat-vakansie {
  border-left: 3px solid var(--cat-holiday-color);
}
.event-li.cat-vakansie .date {
  background: var(--cat-holiday-bg);
  color: var(--cat-holiday-color);
  box-shadow: inset 0 0 0 1px var(--cat-holiday-border);
}
.event-li.cat-vakansie .event-cat-tag {
  background: var(--cat-holiday-bg);
  color: var(--cat-holiday-color);
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .countdown-card {
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    text-align: center;
  }
  
  .countdown-card::before {
    width: 100%;
    height: 6px;
  }
  
  .countdown-timer-wrapper {
    justify-content: center;
  }
  
  .term-tabs {
    background: transparent;
    border: none;
    box-shadow: none;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0;
    width: 100%;
    gap: 0.5rem;
  }
  
  .term-tabs .tab-btn {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    padding: 0.5rem 1.1rem;
    font-size: 0.85rem;
  }
  
  .term-tabs .tab-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 10px rgba(116, 27, 27, 0.2);
  }
  
  .calendar-controls {
    gap: 1rem;
    margin-bottom: 2rem;
  }

  .calendar-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Calendar Note / Callout Card */
.calendar-note {
  max-width: 760px;
  margin: 4rem auto 0;
  padding: 1.5rem 2rem;
  border-radius: 20px;
  background: rgba(249, 168, 37, 0.08); /* Soft gold/yellow tint */
  border: 1px dashed rgba(249, 168, 37, 0.4);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.calendar-note::before {
  content: '💡';
  font-size: 1.25rem;
  flex-shrink: 0;
}

.calendar-note strong {
  color: var(--color-primary);
  font-weight: 700;
}

.calendar-note p {
  margin: 0;
  text-align: left;
}

@media (max-width: 768px) {
  .calendar-note {
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    text-align: center;
  }
  .calendar-note p {
    text-align: center;
  }
}