/* =====================================================================
   FILE: timeline-skin.css
   ROLE: Theme-owned visual skin for iss-programm timeline/calendar output.
   LOAD: only when iss-programm enqueues timeline assets.
   ===================================================================== */

.iss-timeline,
.iss-timeline-sections,
.iss-timeline-query {
  --iss-tl-text: var(--iss-black, #1e1e1e);
  --iss-tl-muted: rgba(30, 30, 30, 0.72);
  --iss-tl-line: rgba(30, 30, 30, 0.18);
  --iss-tl-primary: var(--iss-accent, var(--iss-red, #e81d25));
  --iss-tl-primary-rgb: var(--iss-accent-rgb, 232, 29, 37);
  --iss-tl-surface: var(--iss-white, #fff);
  --iss-tl-border: var(--iss-button-border, rgba(30, 30, 30, 0.14));
  --iss-tl-border-hover: var(--iss-button-hover-border, var(--iss-tl-primary));
  --iss-tl-accent-soft: var(--iss-button-fill-bg, rgba(var(--iss-tl-primary-rgb), 0.16));
  --iss-tl-accent-border: var(--iss-button-fill-border, rgba(var(--iss-tl-primary-rgb), 0.28));
  --iss-tl-hover-bg: var(--iss-button-hover-bg, var(--iss-tl-accent-soft));
  --iss-tl-btn-fg: var(--iss-button-fg, var(--iss-tl-text));
  --iss-tl-btn-hover-fg: var(--iss-button-hover-fg, var(--iss-tl-text));

  /* Solid-fill tokens for the primary action tier (e.g. Buchen),
     kept distinct from the tonal --iss-tl-accent-soft tier above so
     primary and secondary/filter states no longer collapse into the
     same visual weight. */
  --iss-tl-btn-primary-bg: var(--iss-button-primary-bg, var(--iss-tl-primary));
  --iss-tl-btn-primary-fg: var(--iss-button-primary-fg, var(--iss-white, #fff));
  --iss-tl-btn-primary-border: var(--iss-button-primary-border, var(--iss-tl-primary));
  --iss-tl-btn-primary-hover-bg: var(--iss-button-primary-hover-bg, var(--iss-tl-text));
  --iss-tl-btn-primary-hover-border: var(--iss-button-primary-hover-border, var(--iss-tl-text));
  --iss-tl-btn-primary-hover-fg: var(--iss-button-primary-hover-fg, var(--iss-white, #fff));
  color: var(--iss-tl-text);
}

.iss-timeline__section-title {
  font-size: clamp(1.4rem, 2.1vw, 2rem);
  line-height: 1.2;
}

.iss-timeline__month-label {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
}

.iss-timeline__year-label {
  color: var(--iss-tl-muted);
}

.iss-timeline__item {
  border-top: 1px solid var(--iss-tl-line);
}

.iss-timeline__item:last-child {
  border-bottom: 1px solid var(--iss-tl-line);
}

.iss-timeline__day {
  font-weight: 700;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 1.15;
}

.iss-timeline__time {
  font-size: 1rem;
  line-height: 1.25;
  color: var(--iss-tl-muted);
}

.iss-timeline__kicker {
  --iss-kicker-accent: var(--iss-tl-primary);
  --iss-kicker-color: var(--iss-tl-text);
  letter-spacing: 0.06em;
}

.iss-timeline__title {
  font-size: clamp(1.35rem, 2.2vw, 2.05rem);
  line-height: 1.15;
  font-weight: 700;
}

.iss-timeline__title a {
  color: inherit;
  text-decoration: none;
}

.iss-timeline__title a:hover,
.iss-timeline__title a:focus {
  color: var(--iss-tl-primary);
}

.iss-timeline__summary {
  font-size: clamp(0.92rem, 0.86rem + 0.4vw, 1.08rem);
  line-height: 1.45;
  color: var(--iss-tl-muted);
  max-width: 34ch;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.iss-timeline__media {
  background: rgba(30, 30, 30, 0.05);
  overflow: hidden;
}

.iss-timeline__media img {
  object-fit: cover;
}

.iss-timeline__btn {
  border: 1px solid var(--iss-tl-accent-border);
  border-left: 4px solid var(--iss-tl-primary);
  border-radius: 0;
  background: var(--iss-tl-accent-soft);
  color: var(--iss-tl-btn-fg);
  font-weight: 600;
  line-height: 1.1;
  transition:
    background-color var(--iss-transition, 0.2s ease),
    color var(--iss-transition, 0.2s ease),
    border-color var(--iss-transition, 0.2s ease);
}

.iss-timeline__btn--secondary {
  border-color: var(--iss-tl-border);
  background: transparent;
}

/* Primary (e.g. Buchen): solid accent fill, white text, no left
   accent bar (the bar is a "tonal" affordance, redundant once the
   whole button is already accent-colored). This is the one action
   per card meant to read as heavier than everything around it. */
.iss-timeline__btn--primary {
  border: 1px solid var(--iss-tl-btn-primary-border);
  background: var(--iss-tl-btn-primary-bg);
  color: var(--iss-tl-btn-primary-fg);
  font-weight: 700;
}

.iss-timeline__btn--secondary:hover,
.iss-timeline__btn--secondary:focus-visible,
.iss-timeline__btn:not(.iss-timeline__btn--primary, .iss-timeline__btn--secondary):hover,
.iss-timeline__btn:not(.iss-timeline__btn--primary, .iss-timeline__btn--secondary):focus-visible {
  background: var(--iss-tl-hover-bg);
  border-color: var(--iss-tl-border-hover);
  color: var(--iss-tl-btn-hover-fg);
}

.iss-timeline__btn--primary:hover,
.iss-timeline__btn--primary:focus-visible {
  background: var(--iss-tl-btn-primary-hover-bg);
  border-color: var(--iss-tl-btn-primary-hover-border);
  color: var(--iss-tl-btn-primary-hover-fg);
  outline: none;
}

.iss-timeline-slot-picker__backdrop {
  background: rgba(0, 0, 0, 0.42);
}

.iss-timeline-slot-picker__panel {
  border: 1px solid var(--iss-tl-line);
  border-left: 4px solid var(--iss-tl-primary);
  background: var(--iss-tl-surface);
  color: var(--iss-tl-text);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.24);
}

.iss-timeline-slot-picker__header {
  border-bottom: 1px solid var(--iss-tl-line);
}

.iss-timeline-slot-picker__count {
  color: var(--iss-tl-primary);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.iss-timeline-slot-picker__title {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.15;
}

.iss-timeline-slot-picker__close {
  border: 1px solid var(--iss-tl-border);
  background: transparent;
  color: var(--iss-tl-text);
  font-size: 1.45rem;
  transition:
    background-color var(--iss-transition, 0.2s ease),
    color var(--iss-transition, 0.2s ease),
    border-color var(--iss-transition, 0.2s ease);
}

.iss-timeline-slot-picker__close:hover,
.iss-timeline-slot-picker__close:focus-visible {
  border-color: var(--iss-tl-primary);
  background: var(--iss-tl-hover-bg);
  color: var(--iss-tl-btn-hover-fg);
  outline: none;
}

.iss-timeline-slot-picker__month-title {
  color: var(--iss-tl-muted);
  font-size: 0.95rem;
  font-weight: 800;
}

.iss-timeline-slot-picker__slot {
  border-left-width: 3px;
}

.iss-timeline-slot-picker__slot-date {
  font-weight: 700;
}

.iss-timeline-slot-picker__slot-meta {
  color: var(--iss-tl-muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.iss-timeline-slot-picker__slot--disabled {
  border: 1px solid var(--iss-tl-border);
  border-left: 3px solid var(--iss-tl-line);
  background: rgba(30, 30, 30, 0.04);
  color: rgba(30, 30, 30, 0.48);
  cursor: not-allowed;
}

.iss-timeline-slot-picker__slot--disabled .iss-timeline-slot-picker__slot-meta {
  color: rgba(30, 30, 30, 0.48);
}

.iss-timeline__empty,
.iss-timeline-query__meta,
.iss-timeline__filter-label,
.iss-timeline-card__text {
  color: var(--iss-tl-muted);
}

.iss-timeline-query__meta {
  font-size: 0.95rem;
}

.iss-timeline-query__count,
.iss-timeline-card__meta {
  font-weight: 600;
  color: var(--iss-tl-text);
}

.iss-timeline-card__meta {
  font-size: 1rem;
}

.iss-timeline__preset,
.iss-timeline__choice-label {
  border: 1px solid var(--iss-tl-border);
  border-left: 3px solid transparent;
  border-radius: 0;
  background: var(--iss-tl-surface);
  color: var(--iss-tl-text);
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.1;
  transition:
    background-color var(--iss-transition, 0.2s ease),
    border-color var(--iss-transition, 0.2s ease),
    color var(--iss-transition, 0.2s ease);
}

.iss-timeline__preset.is-active,
.iss-timeline__preset[aria-pressed="true"],
.iss-timeline__choice-input:checked + .iss-timeline__choice-label {
  border-color: var(--iss-tl-primary);
  border-left-color: var(--iss-tl-primary);
  background: var(--iss-tl-accent-soft);
  color: var(--iss-tl-text);
}

.iss-timeline__preset:hover,
.iss-timeline__preset:focus-visible,
.iss-timeline__choice--link:focus-visible .iss-timeline__choice-label,
.iss-timeline__choice-input:focus-visible + .iss-timeline__choice-label,
.iss-timeline__choice:hover .iss-timeline__choice-label {
  border-color: var(--iss-tl-primary);
  border-left-color: var(--iss-tl-primary);
  background: var(--iss-tl-hover-bg);
  color: var(--iss-tl-btn-hover-fg);
  outline: none;
}

.iss-timeline__filter select,
.iss-timeline__filter input,
.iss-timeline__apply {
  border: 1px solid var(--iss-tl-border);
  border-left: 3px solid transparent;
  border-radius: 0;
  background: var(--iss-tl-surface);
  color: var(--iss-tl-text);
}

.iss-timeline__apply {
  font-weight: 600;
  transition:
    background-color var(--iss-transition, 0.2s ease),
    color var(--iss-transition, 0.2s ease),
    border-color var(--iss-transition, 0.2s ease);
}

.iss-timeline__apply--ghost {
  background: transparent;
}

.iss-timeline__filter select:focus,
.iss-timeline__filter input:focus,
.iss-timeline__apply:hover,
.iss-timeline__apply:focus-visible {
  border-color: var(--iss-tl-border-hover);
  border-left-color: var(--iss-tl-primary);
  background: var(--iss-tl-hover-bg);
  color: var(--iss-tl-btn-hover-fg);
  outline: none;
}

@media (max-width: 900px) {
  .iss-timeline__title {
    font-size: clamp(1.2rem, 4.2vw, 1.5rem);
  }
}