:root {
  --fefu-blue: #3B63AB;
  --fefu-red: #BC2940;

  --boostrap-success: #28a745;

  --bg-page: #F7F9FC;
  --bg-card: #FFFFFF;
  --bg-card-header: #FFFFFF;
  --bg-accent-soft: #E7ECF6;

  --text-primary: #1C1C1E;
  --text-secondary: #636366;
  --text-muted: #8E8E93;
  --text-on-accent: #FFFFFF;

  --border: #E5E5EA;
  --accent:  var(--fefu-blue);
  --success: var(--boostrap-success);
  --danger:  var(--fefu-red);

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --bg-page: #1C1C1E;
  --bg-card: #2C2C2E;
  --bg-card-header: #3A3A3C;
  --bg-accent-soft: #26314D;

  --text-primary: #F2F2F7;
  --text-secondary: #AEAEB2;
  --text-muted: #8E8E93;
  --text-on-accent: #FFFFFF;

  --border: #3A3A3C;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  font-family: var(--font-main);
  background-color: var(--bg-page);
}

.wrapper {
  position: relative;
  z-index: 2;
  padding-top: 20px;
  padding-bottom: 60px;
  min-height: 100vh;
  color: var(--text-primary);
}

.header-plate {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.3px;
  z-index: 1100;
  user-select: none;
}

.header-plate h1,
.header-plate h2 {
  margin: 0;
  font-weight: 700;
}

.no-events,
.error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 17px;
  font-weight: 500;
}

.error {
  color: var(--danger);
}

@media (max-width: 768px) {
  .header-plate {
      height: 56px;
      padding: 0 16px;
      font-size: 14px;
  }

  .wrapper {
      padding-top: 20px;
  }
}

.search-bar-container {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
  background: var(--bg-card);
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin: 0 20px 20px;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 4px 0;
  font-size: 16px;
  font-family: var(--font-main);
  color: var(--text-primary);
}

.search-input:focus {
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon-left {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  opacity: 0.6;
}

.search-icon-left img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.categories-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-accent-soft);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease;
}

.categories-tab:hover,
.categories-tab.active {
  background-color: var(--accent);
  color: var(--text-on-accent);
}

.categories-icon {
  width: 16px;
  height: 16px;
}

[data-theme="dark"] .search-icon-left img,
[data-theme="dark"] .categories-icon {
  filter: invert(1);
}

.categories-modal {
  opacity: 0;
  pointer-events: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
  transition: opacity 0.3s ease;
}

.categories-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border-radius: 16px;
  max-width: 900px;
  width: 100%;
  padding: 24px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.modal-close:hover {
  color: var(--danger);
}

.modal-content h2 {
  margin-top: 0;
  margin-bottom: 24px;
  font-weight: 700;
  font-size: 24px;
  color: var(--text-primary);
}

.events-container {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 20px 40px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  font-family: var(--font-main);
}

.event-card {
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.event-card:hover,
.event-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--accent);
  outline: none;
}

.event-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background-color: var(--bg-card-header);
  border-bottom: 1px solid var(--border);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}

.event-category {
  background-color: var(--bg-accent-soft);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.event-date {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.event-card h3,
.event-title {
  margin: 0;
  padding: 16px 20px 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.event-meta {
  padding: 0 20px 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.event-meta span,
.meta-item {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item .icon {
  color: var(--accent);
}

@media (max-width: 768px) {
  .categories-modal {
    padding: 20px 10px;
  }

  .events-container {
    grid-template-columns: 1fr;
    padding: 0 16px 30px;
  }

  .search-bar-container {
    margin: 0 16px 16px;
  }

  .event-card {
    border-radius: 14px;
  }

  .event-header {
    padding: 12px 16px;
  }

  .event-card h3,
  .event-title {
    font-size: 17px;
    padding: 14px 16px 10px;
  }

  .event-meta {
    padding: 0 16px 14px;
    gap: 10px;
  }
}