/* ============================================================================
 * changelog.css — Öffentliche Changelog-Seite + geteilte Changelog-Komponente
 *
 * Gilt für:  changelog.html         (eigene Changelog-Seite)
 *            roadmap.html           (Teaser — lädt diese Datei mit)
 *
 * RULE: Alle .changelog-* Styles leben NUR hier — nie in roadmap.css.
 * ========================================================================= */

/* ── 1. PAGE HERO ─────────────────────────────────────────────────────────── */

.changelog-page-hero {
  padding: 140px 0 56px;
  text-align: center;
}

.changelog-page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.1;
}

.changelog-page-hero p {
  color: var(--text-2);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

.changelog-hero-meta {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
}

/* ── 2. FILTER CHIPS ─────────────────────────────────────────────────────── */

.changelog-filter-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 760px;
  margin: 0 auto 56px;
}

.changelog-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 14px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: transparent;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  user-select: none;
}

.changelog-chip:hover {
  border-color: rgba(157, 0, 255, 0.35);
  color: var(--accent-bright);
  background: var(--accent-soft);
}

.changelog-chip.is-active {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  color: var(--accent-bright);
}

.changelog-chip-count {
  font-size: 0.65rem;
  opacity: 0.55;
  font-weight: 500;
}

/* ── 3. JAHRES-GRUPPE ────────────────────────────────────────────────────── */

.changelog-year-group {
  max-width: 760px;
  margin: 0 auto 52px;
}

.changelog-year-group:last-child {
  margin-bottom: 0;
}

/* Dezenter Jahr-Trenner — kein Sticky, kein Blur-Background */
.changelog-year-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.changelog-year-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.75;
  flex-shrink: 0;
}

.changelog-year-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── 4. TIMELINE — präzise ausgerichtet ──────────────────────────────────── */

/*
 * Mathe (einmalig korrekt festgelegt, nie mehr anfassen):
 *   padding-left: 36px
 *   timeline-line: left 11px, width 2px  → Mittellinie bei 12px
 *   timeline-dot:  10×10px, left -29px   → Mittelpunkt bei 36−29+5 = 12px ✓
 */

.changelog-timeline {
  position: relative;
  padding-left: 36px;
}

.changelog-timeline-line {
  position: absolute;
  left: 11px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    rgba(157, 0, 255, 0.3) 0%,
    rgba(157, 0, 255, 0.08) 80%,
    transparent 100%
  );
  border-radius: 2px;
}

.changelog-timeline-entry {
  position: relative;
  margin-bottom: 14px;
}

.changelog-timeline-entry:last-child {
  margin-bottom: 0;
}

/* Dot: perfekt auf der Linie, auf Höhe der Version-Pill */
.changelog-timeline-dot {
  position: absolute;
  left: -29px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent-border);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.changelog-timeline-entry:hover .changelog-timeline-dot {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ── 5. CHANGELOG KARTEN ─────────────────────────────────────────────────── */

/* Teaser-Liste (flach, auf roadmap.html) */
.changelog-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Karte */
.changelog-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  transition: background 0.18s, border-color 0.18s;
}

.changelog-card:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
}

.changelog-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.changelog-version {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-1);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  padding: 2px 9px;
  border-radius: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.changelog-date {
  font-size: 0.76rem;
  color: var(--text-3);
}

.changelog-category {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 9px;
  border-radius: 99px;
  border: 1px solid transparent;
}

.changelog-category.feature  { color: #a5b4fc; background: rgba(129,140,248,0.08); border-color: rgba(129,140,248,0.18); }
.changelog-category.fix      { color: #4ade80; background: rgba(34,197,94,0.08);   border-color: rgba(34,197,94,0.18); }
.changelog-category.refactor { color: #93c5fd; background: rgba(96,165,250,0.08);  border-color: rgba(96,165,250,0.18); }
.changelog-category.security { color: #fca5a5; background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.18); }

.changelog-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 6px;
  line-height: 1.35;
}

.changelog-desc {
  font-size: 0.86rem;
  color: var(--text-2);
  line-height: 1.65;
  margin: 0;
}

/* Filter: Entry ausblenden */
.changelog-timeline-entry.is-hidden {
  display: none;
}

/* ── 6. EMPTY / NO-MATCH STATE ───────────────────────────────────────────── */

.changelog-empty-state {
  text-align: center;
  padding: 56px 20px;
  color: var(--text-3);
  border: 1px dashed var(--border);
  border-radius: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.changelog-empty-state p {
  margin: 0;
  font-size: 0.88rem;
}

/* ── 7. ROADMAP-TEASER (roadmap.html) ────────────────────────────────────── */

.changelog-teaser-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.changelog-teaser-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--accent-border);
  padding: 6px 14px;
  border-radius: 8px;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.changelog-teaser-link:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-bright);
}

/* ── 8. RTL (Arabisch) ───────────────────────────────────────────────────── */

[dir="rtl"] .changelog-timeline {
  padding-left: 0;
  padding-right: 36px;
}

[dir="rtl"] .changelog-timeline-line {
  left: auto;
  right: 11px;
}

[dir="rtl"] .changelog-timeline-dot {
  left: auto;
  right: -29px;
}

[dir="rtl"] .changelog-year-header {
  flex-direction: row-reverse;
}

[dir="rtl"] .changelog-year-line {
  background: var(--border);
}

[dir="rtl"] .changelog-filter-bar {
  flex-direction: row-reverse;
}

[dir="rtl"] .changelog-teaser-header {
  flex-direction: row-reverse;
}

/* ── 9. RESPONSIVE ───────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .changelog-page-hero   { padding: 100px 0 40px; }
  .changelog-card        { padding: 14px 16px; }
  .changelog-filter-bar  { gap: 6px; }
  .changelog-chip        { padding: 4px 10px; font-size: 0.68rem; }

  /*
   * Mobile: kleinere Timeline-Zahlen bleiben korrekt ausgerichtet.
   * padding-left: 30px  |  line: left 9px, w 2px → Mitte 10px
   * dot: 8×8, left -21px → Mitte: 30−21+4 = 13px (close enough for mobile)
   */
  .changelog-timeline        { padding-left: 30px; }
  .changelog-timeline-line   { left: 9px; }
  .changelog-timeline-dot    { left: -23px; top: 18px; width: 8px; height: 8px; }

  [dir="rtl"] .changelog-timeline      { padding-left: 0; padding-right: 30px; }
  [dir="rtl"] .changelog-timeline-line { left: auto; right: 9px; }
  [dir="rtl"] .changelog-timeline-dot  { left: auto; right: -23px; }
}

/* ==========================================================================
   B1 — Klickbare Changelog-Karten + High-End-Detail-Modal
   ========================================================================== */
.changelog-full-desc { display: none; }

.changelog-card--clickable {
  cursor: pointer;
  transition: transform .25s cubic-bezier(.16,1,.3,1), border-color .25s, box-shadow .25s;
}
.changelog-card--clickable:hover,
.changelog-card--clickable:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 14px 34px -14px rgba(0,0,0,.45);
  outline: none;
}
.changelog-card--clickable:focus-visible { box-shadow: 0 0 0 2px var(--accent); }

.changelog-card-more {
  display: inline-flex; align-items: center; gap: 2px;
  margin-top: 12px;
  font-size: .8rem; font-weight: 600; letter-spacing: .01em;
  color: var(--accent-bright, #c77dff);
}
.changelog-card-arrow { transition: transform .25s; font-size: 1.15em; line-height: 1; }
.changelog-card--clickable:hover .changelog-card-arrow { transform: translateX(3px); }
[dir="rtl"] .changelog-card--clickable:hover .changelog-card-arrow { transform: translateX(-3px); }

/* Backdrop */
.cl-modal-backdrop {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center; padding: 24px;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none; transition: opacity .22s ease;
}
.cl-modal-backdrop[hidden] { display: none; }
.cl-modal-backdrop.is-open { opacity: 1; pointer-events: auto; }
body.cl-modal-open { overflow: hidden; }

/* Modal-Karte */
.cl-modal {
  position: relative;
  width: min(680px, 100%);
  max-height: 85vh; overflow-y: auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 42px 38px 34px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.6);
  transform: translateY(14px) scale(.97); opacity: 0;
  transition: transform .28s cubic-bezier(.16,1,.3,1), opacity .28s;
}
.cl-modal-backdrop.is-open .cl-modal { transform: none; opacity: 1; }

.cl-modal-close {
  position: absolute; top: 16px; inset-inline-end: 16px;
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface-1); border: 1px solid var(--border);
  color: var(--text-secondary); cursor: pointer;
  transition: color .2s, transform .25s, background .2s;
}
.cl-modal-close:hover { color: var(--text-primary); transform: rotate(90deg); }
.cl-modal-close:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent); }

.cl-modal-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; padding-inline-end: 40px; }
.cl-modal-version { font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem; color: var(--accent-bright, #c77dff); }
.cl-modal-date { color: var(--text-secondary); font-size: .85rem; }
.cl-modal-title { font-size: clamp(1.4rem, 3.4vw, 1.95rem); line-height: 1.25; margin: 0 0 20px; color: var(--text-primary); }
.cl-modal-body { color: var(--text-secondary); line-height: 1.8; font-size: 1rem; }
.cl-modal-body strong { color: var(--text-primary); font-weight: 600; }

@media (max-width: 600px) {
  .cl-modal-backdrop { padding: 0; place-items: end stretch; }
  .cl-modal {
    width: 100%; max-height: 90vh;
    padding: 34px 20px calc(24px + env(safe-area-inset-bottom));
    border-radius: 20px 20px 0 0;
    transform: translateY(100%);
    -webkit-overflow-scrolling: touch;
  }
  .cl-modal-backdrop.is-open .cl-modal { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .cl-modal-backdrop, .cl-modal, .changelog-card--clickable, .changelog-card-arrow { transition: none; }
  .cl-modal { transform: none; }
}