/**
 * 21C Events — front end.
 * Visual tokens come only from CSS custom properties (CSS Styler + Plugin Settings).
 * No literal colors, spacing, or type sizes in this file.
 */

.c21events {
  box-sizing: border-box;
  max-width: var(--c21events-max-width);
  margin-inline: auto;
  padding: var(--c21events-page-padding);
  color: var(--c21events-color-text);
  background: var(--c21events-color-page);
  font-size: var(--c21events-fs-body);
  font-weight: var(--c21events-fw-body);
  line-height: var(--c21events-lh);
}

.c21events--has-font {
  font-family: var(--c21events-font-family);
}

.c21events *,
.c21events *::before,
.c21events *::after {
  box-sizing: border-box;
}

.c21events--detail {
  max-width: var(--c21events-detail-max-width);
}

/* Filters */
.c21events-filters {
  margin-block-end: var(--c21events-space-section);
}

.c21events-filters__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--c21events-grid-gap);
}

.c21events-filters__field {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--c21events-space-stack-tight);
}

.c21events-filters__label {
  font-size: var(--c21events-fs-meta);
  font-weight: var(--c21events-fw-heading);
}

.c21events-filters__select,
.c21events-form__input {
  padding: var(--c21events-input-padding);
  border: var(--c21events-border-width) solid var(--c21events-color-border);
  border-radius: var(--c21events-radius);
  background: var(--c21events-color-surface);
  color: var(--c21events-color-text);
  font: inherit;
  font-size: var(--c21events-fs-body);
}

.c21events-filters__select {
  font-size: var(--c21events-fs-filter);
}

.c21events-filters__actions {
  margin: 0;
}

.c21events-filters__actions .c21events-btn {
  font-size: var(--c21events-fs-filter);
}

/* Sections */
.c21events-section {
  margin-block-end: var(--c21events-space-section);
}

.c21events-section__title {
  margin: 0 0 var(--c21events-space-stack);
  font-size: var(--c21events-fs-section);
  font-weight: var(--c21events-fw-heading);
  line-height: var(--c21events-lh-tight);
  color: var(--c21events-color-text);
}

.c21events-section__empty,
.c21events-notice {
  margin: 0;
  color: var(--c21events-color-text-muted);
  font-size: var(--c21events-fs-body);
}

.c21events-section__more,
.c21events-section__readmore {
  margin: var(--c21events-space-stack) 0 0;
}

/* Grid */
.c21events-grid {
  display: grid;
  grid-template-columns: repeat(var(--c21events-cards-per-row), minmax(0, 1fr));
  gap: var(--c21events-grid-gap);
}

/* Card */
.c21events-card {
  display: flex;
  flex-direction: column;
  background: var(--c21events-color-surface);
  border: var(--c21events-border-width) solid var(--c21events-color-border);
  border-radius: var(--c21events-radius);
  box-shadow: var(--c21events-card-shadow);
  overflow: hidden;
}

.c21events-card__media {
  display: block;
  aspect-ratio: var(--c21events-image-aspect);
  background: var(--c21events-color-filter-chip);
  overflow: hidden;
}

.c21events-card__media--empty {
  min-block-size: 0;
}

.c21events-card__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c21events-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--c21events-space-stack-tight);
  padding: var(--c21events-card-padding);
  flex: 1;
}

.c21events-card__title {
  margin: 0;
  font-size: var(--c21events-fs-title);
  font-weight: var(--c21events-fw-heading);
  line-height: var(--c21events-lh-tight);
}

.c21events-card__title-link,
.c21events-card__more-link,
.c21events-detail__back-link,
.c21events-detail__meta-link {
  color: var(--c21events-color-accent);
  text-decoration: none;
}

.c21events-card__title-link:hover,
.c21events-card__more-link:hover,
.c21events-detail__back-link:hover,
.c21events-detail__meta-link:hover {
  text-decoration: underline;
}

.c21events-card__date,
.c21events-card__count,
.c21events-card__more {
  margin: 0;
  font-size: var(--c21events-fs-meta);
  color: var(--c21events-color-text-muted);
}

.c21events-card__labels {
  margin: 0;
  font-size: var(--c21events-fs-meta);
}

.c21events-card__label {
  display: inline-block;
  padding: var(--c21events-space-stack-tight) var(--c21events-space-stack);
  border-radius: var(--c21events-radius);
  background: var(--c21events-color-filter-chip);
  color: var(--c21events-color-filter-chip-text);
  text-decoration: none;
}

.c21events-card__label:hover {
  text-decoration: underline;
}

.c21events-card__label-sep {
  color: var(--c21events-color-text-muted);
}

.c21events-card__more {
  margin-block-start: auto;
  padding-block-start: var(--c21events-space-stack-tight);
}

/* Buttons */
.c21events-btn {
  display: inline-block;
  padding: var(--c21events-button-padding);
  border: var(--c21events-border-width) solid transparent;
  border-radius: var(--c21events-radius);
  font: inherit;
  font-size: var(--c21events-fs-button);
  font-weight: var(--c21events-fw-heading);
  line-height: var(--c21events-lh-tight);
  cursor: pointer;
  text-decoration: none;
}

.c21events-btn--primary {
  background: var(--c21events-color-accent);
  color: var(--c21events-color-accent-text);
  border-color: var(--c21events-color-accent);
}

.c21events-btn--secondary {
  background: var(--c21events-color-surface);
  color: var(--c21events-color-accent);
  border-color: var(--c21events-color-border);
}

.c21events-btn:disabled {
  opacity: var(--c21events-disabled-opacity);
  cursor: default;
}

/* Detail */
.c21events-detail__back {
  margin: 0 0 var(--c21events-space-stack);
  font-size: var(--c21events-fs-meta);
}

.c21events-detail__media {
  margin: 0 0 var(--c21events-space-stack);
  border-radius: var(--c21events-radius);
  overflow: hidden;
  aspect-ratio: var(--c21events-image-aspect);
  background: var(--c21events-color-filter-chip);
}

.c21events-detail__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c21events-detail__title {
  margin: 0 0 var(--c21events-space-stack-tight);
  font-size: var(--c21events-fs-section);
  font-weight: var(--c21events-fw-heading);
  line-height: var(--c21events-lh-tight);
}

.c21events-detail__date,
.c21events-detail__meta {
  margin: 0 0 var(--c21events-space-stack-tight);
  font-size: var(--c21events-fs-meta);
  color: var(--c21events-color-text-muted);
}

.c21events-detail__meta-label {
  font-weight: var(--c21events-fw-heading);
  color: var(--c21events-color-text);
}

.c21events-detail__description {
  margin: var(--c21events-space-stack) 0;
  font-size: var(--c21events-fs-body);
  color: var(--c21events-color-text);
}

.c21events-detail__description > *:first-child {
  margin-block-start: 0;
}

.c21events-detail__description > *:last-child {
  margin-block-end: 0;
}

/* Participation */
.c21events-participate {
  margin-block-start: var(--c21events-space-section);
  padding: var(--c21events-card-padding);
  border: var(--c21events-border-width) solid var(--c21events-color-border);
  border-radius: var(--c21events-radius);
  background: var(--c21events-color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--c21events-space-stack);
}

.c21events-participate__count {
  margin: 0;
  font-size: var(--c21events-fs-body);
  font-weight: var(--c21events-fw-heading);
}

.c21events-participate__note,
.c21events-participate__registered {
  margin: 0;
  font-size: var(--c21events-fs-meta);
  color: var(--c21events-color-text-muted);
}

.c21events-participate__registered {
  color: var(--c21events-color-success);
  font-weight: var(--c21events-fw-heading);
  font-size: var(--c21events-fs-body);
}

.c21events-participate__message {
  margin: 0;
  font-size: var(--c21events-fs-meta);
}

.c21events-participate__message.is-error {
  color: var(--c21events-color-error);
}

.c21events-participate__message.is-success {
  color: var(--c21events-color-success);
}

.c21events-form {
  display: flex;
  flex-direction: column;
  gap: var(--c21events-space-stack);
}

.c21events-form__field {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--c21events-space-stack-tight);
}

.c21events-form__label {
  font-size: var(--c21events-fs-meta);
  font-weight: var(--c21events-fw-heading);
}

.c21events-form__actions {
  margin: 0;
}

@media (max-width: 720px) {
  .c21events-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}