/* ======================================
   Schlachter 2000 Hörbibel — Styles
   Mobile-first, no external dependencies
   ====================================== */

/* --- Theme variables --- */
:root[data-theme="dark"] {
  --bg:          #0d0d0d;
  --sidebar-bg:  #161616;
  --card-bg:     #1a1a1a;
  --card-hover:  #222;
  --border:      #2a2a2a;
  --text:        #e2e2e2;
  --text-muted:  #666;
  --text-dim:    #444;
  --accent:      #5b9cf6;
  --accent-dark: #3a7de0;
  --playing-bg:  #0a2a0a;
  --playing-bdr: #2d6e2d;
  --playing-txt: #66bb6a;
  --paused-bg:   #1a1a0a;
  --paused-bdr:  #6e6e2d;
  --header-bg:   #111;
  --header-bdr:  #222;
  --overlay:     rgba(0,0,0,0.7);
  --progress-bg: #2a2a2a;
  --progress-fg: #5b9cf6;
  --btn-bg:      #252525;
  --btn-hover:   #333;
  --btn-active:  #3a7de0;
  --scrollbar:   #333;
}

:root[data-theme="light"] {
  --bg:          #f2f4f8;
  --sidebar-bg:  #ffffff;
  --card-bg:     #ffffff;
  --card-hover:  #f8f9ff;
  --border:      #e0e4ec;
  --text:        #1a1a2e;
  --text-muted:  #888;
  --text-dim:    #bbb;
  --accent:      #1a6ed8;
  --accent-dark: #145abc;
  --playing-bg:  #e8f5e9;
  --playing-bdr: #4caf50;
  --playing-txt: #2e7d32;
  --paused-bg:   #fff8e1;
  --paused-bdr:  #ffc107;
  --header-bg:   #1a6ed8;
  --header-bdr:  #145abc;
  --overlay:     rgba(0,0,0,0.5);
  --progress-bg: #e0e4ec;
  --progress-fg: #1a6ed8;
  --btn-bg:      #eef1f8;
  --btn-hover:   #dde2f0;
  --btn-active:  #1a6ed8;
  --scrollbar:   #ccc;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* --- Scrollbars --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 3px; }

/* ======================================
   Layout
   ====================================== */

#app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

/* --- Header --- */
#header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
  padding: 0 16px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-bdr);
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
}

#header h1 {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.01em;
}

:root[data-theme="light"] #header h1 { color: #fff; }

/* --- Icon Buttons --- */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}
.icon-btn:hover { background: rgba(255,255,255,0.2); }
.icon-btn:active { background: rgba(255,255,255,0.3); }
/* Explicit SVG size — WebKit (Safari / all iOS browsers) collapses
   viewBox-only SVGs to 0×0, hiding the icon. Blink falls back to the
   intrinsic size, which is why it worked in Mac Edge but not Safari. */
.icon-btn svg {
  width: 22px;
  height: 22px;
  display: block;
  pointer-events: none;
}

/* --- Main layout --- */
#layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* --- Sidebar overlay (mobile) --- */
#sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  opacity: 0;
  transition: opacity 0.25s;
}
#sidebar-overlay.visible {
  display: block;
  opacity: 1;
}

/* --- Sidebar --- */
#sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(320px, 85vw);
  background: var(--sidebar-bg);
  border-left: 1px solid var(--border);
  z-index: 300;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
#sidebar.open { transform: translateX(0); }

/* Desktop: always visible sidebar */
@media (min-width: 900px) {
  #layout {
    overflow: visible; /* allow sticky positioning */
    align-items: flex-start;
  }
  #sidebar {
    position: sticky;
    top: 56px;   /* below the header */
    right: auto;
    transform: none !important;
    width: 270px;
    height: calc(100dvh - 56px);
    flex-shrink: 0;
    overflow: hidden; /* sidebar itself clips internally */
  }
  #content {
    overflow-y: auto;
    max-height: calc(100dvh - 56px);
  }
  #sidebar-overlay { display: none !important; }
  #menu-toggle { display: none; }
  #close-sidebar { display: none; }
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Override icon-btn colours inside sidebar (not on blue header) */
.sidebar-header .icon-btn {
  background: transparent;
  color: var(--text-muted);
  font-size: 1.1rem;
}
.sidebar-header .icon-btn:hover {
  background: var(--card-hover);
  color: var(--text);
}

.sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* Search box */
#book-search-wrapper {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#book-search {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
}
#book-search::placeholder { color: var(--text-muted); }
#book-search:focus { border-color: var(--accent); }

/* Nav tree */
#nav-tree {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

/* Testament section */
.testament-section { }

.testament-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 16px 8px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  text-align: left;
  transition: color 0.15s;
}
.testament-header:hover { color: var(--text); }
.testament-header::after { content: '▾'; font-size: 0.9em; transition: transform 0.2s; }
.testament-section.collapsed .testament-header::after { transform: rotate(-90deg); }

.book-list {
  list-style: none;
  padding: 0 6px;
  overflow: hidden;
  max-height: 9999px;
  transition: max-height 0.3s ease;
}
.testament-section.collapsed .book-list { max-height: 0; }

.book-btn {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.book-btn:hover { background: var(--card-hover); }
.book-btn.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.book-btn.has-playing {
  color: var(--playing-txt);
}

/* ======================================
   Main content
   ====================================== */

#content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  max-width: 860px;
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 600px) {
  #content { padding: 28px 24px; }
}

/* Welcome screen */
#welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  color: var(--text-muted);
  gap: 16px;
  padding: 40px 20px;
}

.welcome-icon {
  opacity: 0.4;
}
.welcome-icon svg {
  width: 64px;
  height: 64px;
  display: block;
}

.welcome-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

.welcome-sub {
  font-size: 0.95rem;
  max-width: 320px;
  line-height: 1.6;
}

/* Book view */
#book-view { }

#book-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

#book-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
}

#book-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Chapter list */
#chapter-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Chapter item */
.chapter-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.chapter-item:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.chapter-item.playing {
  border-color: var(--playing-bdr);
  background: var(--playing-bg);
}
.chapter-item.paused {
  border-color: var(--paused-bdr);
  background: var(--paused-bg);
}
.chapter-item.error {
  border-color: #c62828;
  background: rgba(198,40,40,0.05);
}

.chapter-main {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
}

.chapter-label {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  min-width: 0;
}
.chapter-item.playing .chapter-label { color: var(--playing-txt); font-weight: 600; }

.playing-badge {
  display: none;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--playing-txt);
  background: var(--playing-bg);
  border: 1px solid var(--playing-bdr);
  padding: 2px 6px;
  border-radius: 4px;
}
.chapter-item.playing .playing-badge { display: inline; }

/* ======================================
   Unified Media Buttons (chapter + footer)
   ====================================== */

.media-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--btn-bg);
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}
.media-btn svg {
  width: 18px;
  height: 18px;
  pointer-events: none;
  display: block;
  overflow: visible;
}
.media-btn:hover  { background: var(--btn-hover); border-color: var(--accent); }
.media-btn:active { transform: scale(0.88); }

/* Play/pause toggle button */
.media-btn-main {
  border-radius: 50%;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.media-btn-main:hover  { background: var(--accent-dark); border-color: var(--accent-dark); }
.media-btn-main:active { transform: scale(0.88); }
.chapter-item.playing .media-btn-main { background: var(--playing-txt); border-color: var(--playing-txt); }
#player-bar.playing   .media-btn-main { background: var(--playing-txt); border-color: var(--playing-txt); }

/* Footer main button slightly larger (more room there) */
#player-buttons .media-btn-main { width: 40px; height: 40px; }

/* Chapter controls row */
.chapter-controls {
  display: flex;
  gap: 5px;
  flex-shrink: 0;
  align-items: center;
}

/* Progress section */
.chapter-progress {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 0 14px 12px;
}
.chapter-item.playing .chapter-progress,
.chapter-item.paused .chapter-progress {
  display: flex;
}

.progress-bar-wrapper {
  flex: 1;
  height: 4px;
  background: var(--progress-bg);
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: var(--progress-fg);
  border-radius: 2px;
  width: 0%;
  transition: width 0.25s linear;
  pointer-events: none;
}

.chapter-item.playing .progress-fill { background: var(--playing-txt); }
.chapter-item.paused .progress-fill { background: var(--paused-bdr); }

.time-display {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  min-width: 80px;
  text-align: right;
}

/* Error state */
.chapter-item.error .chapter-label::after {
  content: ' (Datei nicht gefunden)';
  color: #ef5350;
  font-size: 0.8rem;
  font-weight: 400;
}

/* ======================================
   Responsive tweaks
   ====================================== */

@media (max-width: 400px) {
  .media-btn { width: 30px; height: 30px; }
  .media-btn svg { width: 15px; height: 15px; }
  #player-buttons .media-btn-main { width: 34px; height: 34px; }
  .chapter-label { font-size: 0.875rem; }
  #book-title { font-size: 1.3rem; }
}

@media (min-width: 600px) {
  .chapter-main { padding: 14px 18px; }
  .chapter-progress { padding: 0 18px 14px; }
  .chapter-label { font-size: 1rem; }
  .media-btn { width: 38px; height: 38px; }
  .media-btn svg { width: 19px; height: 19px; }
  #player-buttons .media-btn-main { width: 42px; height: 42px; }
}

/* ======================================
   Animations
   ====================================== */

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(76,175,80,0.4); }
  70%  { box-shadow: 0 0 0 6px rgba(76,175,80,0); }
  100% { box-shadow: 0 0 0 0 rgba(76,175,80,0); }
}

.chapter-item.playing {
  animation: pulse-ring 2s ease-out;
}

/* ======================================
   Footer Player Bar
   ====================================== */

#player-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 500;
  background: var(--sidebar-bg);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.25);
}
#player-bar.active { display: block; }

/* Seek track — full width strip at top of bar */
#player-progress-track {
  height: 3px;
  background: var(--progress-bg);
  cursor: pointer;
  position: relative;
  transition: height 0.15s;
}
#player-progress-track:hover { height: 5px; }

#player-progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.25s linear;
  pointer-events: none;
}
#player-bar.playing #player-progress-fill { background: var(--playing-txt); }

/* Inner row */
#player-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  min-height: 54px;
  flex-wrap: wrap;
}

/* Footer button row — uses unified .media-btn */
#player-buttons {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* Track info */
#player-info {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
}

#player-book-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 1;
}
#player-bar.playing #player-book-name { color: var(--playing-txt); }

.player-dot {
  color: var(--text-dim);
  flex-shrink: 0;
  font-size: 0.8rem;
}

#player-chapter-name {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 2;
}

/* Time */
#player-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  margin-left: auto;
}

/* Push content up when player is shown */
#app.player-active #content {
  padding-bottom: 80px;
}

@media (min-width: 600px) {
  #player-inner {
    flex-wrap: nowrap;
    padding: 0 20px;
    min-height: 60px;
  }
  #app.player-active #content {
    padding-bottom: 72px;
  }
}

/* ======================================
   Home nav (index.html)
   ====================================== */

#home-nav {
  padding: 24px 0 40px;
}

.home-intro {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

#book-search-wrapper {
  margin-bottom: 28px;
}

#book-search {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
}
#book-search::placeholder { color: var(--text-muted); }
#book-search:focus { border-color: var(--accent); }

.home-testament-section {
  margin-bottom: 28px;
}

.home-testament-header {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.home-book-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 6px;
}

.home-book-link {
  display: block;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.home-book-link:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  color: var(--accent);
}

/* ======================================
   Book page header: back button
   ====================================== */

#back-btn {
  text-decoration: none;
  color: #fff;
  flex-shrink: 0;
}
#back-btn svg { display: block; width: 20px; height: 20px; }

/* Logout button */
#logout-btn { flex-shrink: 0; }