/* ===================================
   EVENTS CALENDAR SECTION
   File: calendar-section.css
=================================== */

/* ===== Calendar Container ===== */
.calendar-section {
  background: var(--bg);
  padding: 80px 0;
}

.calendar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== Section Header ===== */
.calendar-header {
  text-align: center;
  margin-bottom: 50px;
}

.calendar-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--ieee-blue);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.calendar-header p {
  font-size: 1.1rem;
  color: var(--muted);
}

html[data-theme="dark"] .calendar-header h2 {
  color: #ffffff;
}

/* ===== Calendar Wrapper ===== */
.calendar-wrapper {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: start;
}

/* ===== Main Calendar ===== */
.calendar-main {
  background: var(--panel);
  border-radius: 20px;
  padding: 25px; /* تقليل من 35px */
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

html[data-theme="dark"] .calendar-main {
  border-color: rgba(255, 255, 255, 0.1);
}

/* Calendar Header (Month/Year) */
.calendar-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px; /* تقليل من 30px */
}

.calendar-nav h3 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
}

.calendar-nav-buttons {
  display: flex;
  gap: 10px;
}

.calendar-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(0, 98, 155, 0.2);
  background: var(--panel);
  color: var(--ieee-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 18px;
}

.calendar-nav-btn:hover {
  background: var(--ieee-blue);
  color: white;
  border-color: var(--ieee-blue);
  transform: scale(1.05);
}

html[data-theme="dark"] .calendar-nav-btn {
  border-color: rgba(0, 153, 204, 0.3);
  color: var(--accent);
}

html[data-theme="dark"] .calendar-nav-btn:hover {
  background: rgba(0, 153, 204, 0.25);
  border-color: rgba(0, 153, 204, 0.5);
}

/* Days of Week */
.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px; /* تقليل من 8px */
  margin-bottom: 10px; /* تقليل من 15px */
}

.calendar-weekday {
  text-align: center;
  font-weight: 700;
  font-size: 0.75rem; /* تقليل من 0.85rem */
  color: var(--muted);
  padding: 6px; /* تقليل من 10px */
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Calendar Days Grid */
.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px; /* تقليل من 8px */
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px; /* تقليل من 12px */
  font-weight: 600;
  font-size: 0.85rem; /* تقليل من 0.95rem */
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  color: var(--text);
  background: transparent;
  min-height: 45px; /* إضافة حد أدنى للارتفاع */
}
.calendar-day:hover {
  background: rgba(0, 98, 155, 0.1);
  transform: scale(1.05);
}

/* Other month days */
.calendar-day.other-month {
  color: var(--muted);
  opacity: 0.4;
}

/* Today */
.calendar-day.today {
  background: var(--ieee-blue);
  color: white;
  font-weight: 700;
}

.calendar-day.today:hover {
  background: var(--ieee-blue-dark);
}

/* Day with event */
.calendar-day.has-event::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.calendar-day.has-event.today::after {
  background: white;
}

/* Selected day */
.calendar-day.selected {
  background: rgba(0, 153, 204, 0.15);
  border: 2px solid var(--accent);
}

/* Dark mode */
html[data-theme="dark"] .calendar-day:hover {
  background: rgba(0, 153, 204, 0.15);
}

html[data-theme="dark"] .calendar-day.today {
  background: var(--accent);
}

/* ===== Upcoming Events Sidebar ===== */
.upcoming-events {
  background: var(--panel);
  border-radius: 20px;
  padding: 30px 25px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 100px;
  max-height: 600px;
  overflow-y: auto;
}

html[data-theme="dark"] .upcoming-events {
  border-color: rgba(255, 255, 255, 0.1);
}

.upcoming-events h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid rgba(0, 98, 155, 0.15);
}

html[data-theme="dark"] .upcoming-events h3 {
  border-bottom-color: rgba(0, 153, 204, 0.2);
}

/* Event Item */
.event-item {
  padding: 18px;
  margin-bottom: 15px;
  border-radius: 12px;
  background: rgba(0, 98, 155, 0.05);
  border-left: 4px solid var(--ieee-blue);
  transition: all 0.3s ease;
  cursor: pointer;
}

.event-item:hover {
  background: rgba(0, 98, 155, 0.1);
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 98, 155, 0.15);
}

html[data-theme="dark"] .event-item {
  background: rgba(0, 153, 204, 0.08);
  border-left-color: var(--accent);
}

html[data-theme="dark"] .event-item:hover {
  background: rgba(0, 153, 204, 0.15);
}

.event-date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ieee-blue);
  margin-bottom: 8px;
}

html[data-theme="dark"] .event-date {
  color: var(--accent);
}

.event-date svg {
  width: 16px;
  height: 16px;
}

.event-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 5px;
}

.event-location {
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.event-location svg {
  width: 14px;
  height: 14px;
}

/* No events message */
.no-events {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

.no-events svg {
  width: 60px;
  height: 60px;
  margin: 0 auto 15px;
  opacity: 0.3;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .calendar-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .upcoming-events {
    position: static;
    max-height: none;
  }
  
  .calendar-container {
    padding: 0 24px;
  }
}

@media (max-width: 576px) {
  .calendar-section {
    padding: 60px 0;
  }
  
  .calendar-main {
    padding: 20px;
  }
  
  .calendar-nav h3 {
    font-size: 1.3rem;
  }
  
  .calendar-weekday {
    font-size: 0.75rem;
    padding: 6px;
  }
  
  .calendar-day {
    font-size: 0.85rem;
  }
  
  .upcoming-events {
    padding: 20px 15px;
  }
  
  .event-item {
    padding: 15px;
  }
}



/* Register Button */
.event-register-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 18px;
  background: var(--ieee-blue);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.event-register-btn:hover {
  background: var(--ieee-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 98, 155, 0.3);
}

.event-register-btn svg {
  width: 18px;
  height: 18px;
}

html[data-theme="dark"] .event-register-btn {
  background: var(--accent);
}

html[data-theme="dark"] .event-register-btn:hover {
  background: rgba(0, 153, 204, 0.8);
}

.calendar-day.empty-day {
  visibility: hidden;
  pointer-events: none;
}