/* ═══════════════════════════════════════════════════════════════
   StoryGraph — timeline.css
   ═══════════════════════════════════════════════════════════════ */

/* ── TIMELINE VIEW LAYOUT ───────────────────────────────────────── */
#view-timeline{display:flex;flex-direction:row;flex:1;overflow:hidden}

/* ── TIMELINE SIDEBAR ───────────────────────────────────────────── */
#tl-sidebar{
  width:200px;flex-shrink:0;
  background:var(--surface);border-right:1px solid var(--border);
  display:flex;flex-direction:column;overflow:hidden;
}
#tl-sb-head{
  padding:12px 14px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  font-size:10px;font-weight:700;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--text3);flex-shrink:0;
}
#tl-new-timeline{
  background:none;border:none;color:var(--text3);cursor:pointer;
  font-size:18px;line-height:1;padding:0 2px;transition:color .12s;
}
#tl-new-timeline:hover{color:var(--accent)}
#tl-list{flex:1;overflow-y:auto;padding:4px 0}
#tl-list::-webkit-scrollbar{width:3px}
#tl-list::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

.tl-item{
  padding:9px 14px;cursor:pointer;
  border-left:3px solid transparent;
  font-size:12px;color:var(--text2);
  transition:all .12s;
}
.tl-item:hover{background:var(--surface2);color:var(--text)}
.tl-item.active{
  background:var(--surface2);border-left-color:var(--accent);
  color:var(--text);font-weight:500;
}
.tl-item-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tl-item-meta{font-size:10px;color:var(--text3);margin-top:2px;font-family:var(--mono)}

/* ── TIMELINE MAIN ──────────────────────────────────────────────── */
#tl-main{
  flex:1;display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg);
}

/* ── TIMELINE TOP BAR ───────────────────────────────────────────── */
#tl-topbar{
  height:44px;background:var(--surface);border-bottom:1px solid var(--border);
  display:flex;align-items:center;padding:0 16px;gap:10px;flex-shrink:0;
}
#tl-topbar-left{display:flex;align-items:center;gap:8px;flex:1;min-width:0}
#tl-current-name{
  font-size:14px;font-weight:600;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.tl-tag{
  font-size:10px;padding:2px 8px;border-radius:20px;
  background:var(--surface2);border:1px solid var(--border);
  color:var(--text3);font-family:var(--mono);white-space:nowrap;flex-shrink:0;
}
#tl-topbar-right{display:flex;gap:6px;align-items:center;flex-shrink:0}
.tl-tb-btn{
  padding:5px 12px;border-radius:7px;font-size:11px;font-weight:600;
  cursor:pointer;font-family:var(--font);border:1px solid var(--border2);
  background:var(--surface2);color:var(--text2);transition:all .12s;
}
.tl-tb-btn:hover{border-color:var(--border3);color:var(--text)}
.tl-tb-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.tl-tb-primary:hover{opacity:.88;color:#fff}
.tl-tb-danger{color:var(--danger)!important}
.tl-tb-danger:hover{background:rgba(226,75,74,.1)!important;border-color:var(--danger)!important}

/* ── COLUMN HEADERS ─────────────────────────────────────────────── */
#tl-col-headers{
  display:flex;align-items:center;
  background:var(--surface);border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.tl-col-hdr{
  padding:6px 14px;font-size:9px;font-weight:700;
  letter-spacing:1.2px;text-transform:uppercase;color:var(--text3);
}

/* ── TIMELINE SCROLL ────────────────────────────────────────────── */
#tl-scroll{
  flex:1;overflow-y:auto;padding:16px 0 40px;
  position:relative;
}
#tl-scroll::-webkit-scrollbar{width:4px}
#tl-scroll::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

#tl-empty{
  display:flex;flex-direction:column;align-items:center;
  justify-content:center;height:300px;gap:4px;
}
#tl-blocks{min-height:100px}

/* ── BLOCK ROW ──────────────────────────────────────────────────── */
.tl-row{
  display:flex;align-items:stretch;
  position:relative;
  transition:opacity .15s;
}
.tl-row:hover .tl-block-actions{opacity:1}

/* ── LEFT LANE — structure blocks ──────────────────────────────── */
.tl-left{
  width:240px;flex-shrink:0;
  padding:0 12px 4px;
  display:flex;flex-direction:column;
}

/* Act block */
.tl-block-act{
  border-radius:8px;overflow:hidden;cursor:pointer;
  border:1px solid var(--border2);
  transition:border-color .12s;
}
.tl-block-act:hover{border-color:var(--accent)}
.tl-block-act-inner{
  padding:10px 12px;
  background:var(--surface);
}
.tl-block-type{
  font-size:9px;font-weight:700;letter-spacing:1px;
  text-transform:uppercase;color:var(--accent);margin-bottom:3px;
}
.tl-block-label{
  font-size:13px;font-weight:600;color:var(--text);
  line-height:1.3;word-break:break-word;
}
.tl-block-detail{
  font-size:10px;color:var(--text3);margin-top:3px;
  font-family:var(--mono);
}
.tl-block-resize{
  height:6px;cursor:ns-resize;
  background:var(--surface2);
  display:flex;align-items:center;justify-content:center;
  transition:background .12s;
}
.tl-block-resize:hover{background:var(--border2)}
.tl-block-resize::after{
  content:'';width:28px;height:2px;
  background:var(--border3);border-radius:2px;
}
.tl-block-actions{
  display:flex;gap:3px;opacity:0;transition:opacity .12s;
  position:absolute;top:6px;right:16px;z-index:10;
}
.tl-ba-btn{
  width:22px;height:22px;border-radius:5px;
  background:var(--surface2);border:1px solid var(--border);
  color:var(--text3);cursor:pointer;font-size:11px;
  display:flex;align-items:center;justify-content:center;
  transition:all .12s;
}
.tl-ba-btn:hover{background:var(--surface3);color:var(--text)}
.tl-ba-btn.danger:hover{color:var(--danger);border-color:var(--danger)}

/* Scene block — inset */
.tl-block-scene{
  margin-left:20px;
  border-radius:7px;overflow:hidden;cursor:pointer;
  border:1px solid var(--border);
  transition:border-color .12s;
}
.tl-block-scene:hover{border-color:var(--accent)}
.tl-block-scene .tl-block-act-inner{
  background:var(--surface2);padding:8px 10px;
}
.tl-block-scene .tl-block-type{color:var(--text3)}

/* Beat block — compact, further inset */
.tl-block-beat{
  margin-left:36px;margin-right:4px;
  border-radius:6px;cursor:pointer;
  border:1px solid var(--border);
  background:var(--surface);padding:6px 10px;
  transition:border-color .12s;
}
.tl-block-beat:hover{border-color:var(--accent)}
.tl-block-beat .tl-block-type{color:var(--text3);font-size:8px}
.tl-block-beat .tl-block-label{font-size:11px;color:var(--text2)}

/* Act colour accent on left edge */
.tl-block-act[data-colour="violet"] .tl-block-act-inner{border-left:3px solid #a78bfa}
.tl-block-act[data-colour="teal"]   .tl-block-act-inner{border-left:3px solid #3dbb8a}
.tl-block-act[data-colour="amber"]  .tl-block-act-inner{border-left:3px solid #f5b951}
.tl-block-act[data-colour="coral"]  .tl-block-act-inner{border-left:3px solid #f07755}
.tl-block-act[data-colour="blue"]   .tl-block-act-inner{border-left:3px solid #7aa3ff}
.tl-block-act[data-colour="rose"]   .tl-block-act-inner{border-left:3px solid #e0558a}

/* ── SPINE ──────────────────────────────────────────────────────── */
.tl-spine{
  width:24px;flex-shrink:0;
  display:flex;flex-direction:column;
  align-items:center;
  position:relative;
}
.tl-spine-line{
  width:2px;background:var(--border2);flex:1;
  min-height:4px;
}
.tl-spine-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);border:2px solid var(--bg);
  flex-shrink:0;z-index:2;margin:1px 0;
}
.tl-spine-dot.scene{
  width:8px;height:8px;
  background:var(--text3);
}
.tl-spine-beat{
  width:8px;height:8px;
  background:var(--text3);
  transform:rotate(45deg);
  flex-shrink:0;margin:3px 0;z-index:2;
  border:1.5px solid var(--bg);
}
.tl-spine-beat.key{background:var(--accent)}

/* ── RIGHT LANE — annotations ───────────────────────────────────── */
.tl-right{
  flex:1;padding:6px 14px;
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  min-width:0;
}
.tl-ann-row{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.tl-ann-lbl{
  font-size:9px;font-weight:700;letter-spacing:.8px;
  text-transform:uppercase;color:var(--text3);
  min-width:64px;flex-shrink:0;
}
.tl-char-pill{
  padding:2px 8px;border-radius:20px;font-size:10px;font-weight:600;
  background:var(--surface2);border:1px solid var(--border);
  color:var(--text2);cursor:pointer;transition:all .12s;
}
.tl-char-pill:hover{border-color:var(--accent);color:var(--accent)}
.tl-tone-bar{
  height:7px;border-radius:4px;flex:1;max-width:100px;
  min-width:24px;
}
.tl-tone-label{font-size:10px;color:var(--text3)}
.tl-thread-pill{
  padding:2px 8px;border-radius:3px;font-size:10px;
  font-weight:500;border-left:2px solid var(--accent);
  background:color-mix(in srgb,var(--accent) 8%,transparent);
  color:var(--text2);
}

/* Tone colours */
.tone-tense{background:#c44f3a}
.tone-calm{background:#3d7a6b}
.tone-melancholy{background:#534ab7}
.tone-hope{background:#1d9e75}
.tone-action{background:#ba7517}
.tone-joy{background:#a6e3a1}
.tone-grief{background:#7a5a98}
.tone-fear{background:#f38ba8}
.tone-anger{background:#e24b4a}
.tone-love{background:#e0558a}
.tone-surprise{background:#f5b951}
.tone-shock{background:#f07755}

/* ── BLOCK EDITOR MODAL ─────────────────────────────────────────── */
#tl-block-modal{
  position:fixed;inset:0;background:rgba(0,0,0,.5);
  display:flex;align-items:center;justify-content:center;
  z-index:800;opacity:0;pointer-events:none;transition:opacity .18s;
}
#tl-block-modal.open{opacity:1;pointer-events:all}
#tl-block-box{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;width:480px;max-width:calc(100vw - 40px);
  max-height:calc(100vh - 80px);display:flex;flex-direction:column;
  box-shadow:var(--shadow);overflow:hidden;
}
#tl-block-modal-head{
  padding:14px 16px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;flex-shrink:0;
}
#tl-block-modal-title{font-size:14px;font-weight:600;color:var(--text)}
#tl-block-modal-close{
  background:none;border:none;color:var(--text3);cursor:pointer;
  font-size:16px;padding:2px 6px;border-radius:5px;
}
#tl-block-modal-close:hover{background:var(--surface2);color:var(--text)}
#tl-block-modal-body{
  flex:1;overflow-y:auto;padding:16px;
  display:flex;flex-direction:column;gap:12px;
}
#tl-block-modal-body::-webkit-scrollbar{width:3px}
#tl-block-modal-body::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

.tl-field{display:flex;flex-direction:column;gap:5px}
.tl-field-label{
  font-size:10px;font-weight:700;letter-spacing:.8px;
  text-transform:uppercase;color:var(--text3);
}
.tl-field input,.tl-field select,.tl-field textarea{
  width:100%;background:var(--surface2);border:1px solid var(--border);
  border-radius:7px;padding:7px 10px;font-size:12px;
  color:var(--text);font-family:var(--font);outline:none;
  transition:border-color .12s;
}
.tl-field input:focus,.tl-field select:focus,.tl-field textarea:focus{
  border-color:var(--accent);
}
.tl-field select{appearance:none;cursor:pointer}
.tl-field textarea{resize:vertical;min-height:60px;line-height:1.5}
.tl-field-row{display:flex;gap:10px}
.tl-field-row .tl-field{flex:1}

/* Characters tag input */
.tl-char-tags{
  display:flex;flex-wrap:wrap;gap:5px;
  background:var(--surface2);border:1px solid var(--border);
  border-radius:7px;padding:6px 8px;min-height:36px;cursor:text;
}
.tl-char-tags:focus-within{border-color:var(--accent)}
.tl-char-tag{
  padding:2px 8px;border-radius:20px;font-size:11px;
  background:var(--surface3);border:1px solid var(--border2);
  color:var(--text);display:flex;align-items:center;gap:4px;
}
.tl-char-tag-del{
  background:none;border:none;color:var(--text3);cursor:pointer;
  font-size:11px;line-height:1;padding:0;
}
.tl-char-tag-del:hover{color:var(--danger)}
.tl-char-tag-input{
  background:transparent!important;border:none!important;
  border-radius:0!important;padding:2px 4px!important;
  font-size:11px!important;flex:1;min-width:80px;outline:none;
}

/* Modal footer */
.tl-modal-footer{
  padding:12px 16px;border-top:1px solid var(--border);
  display:flex;gap:8px;justify-content:space-between;flex-shrink:0;
}
.tl-modal-footer-left{display:flex;gap:6px}

/* ── TIMELINE NAME MODAL ────────────────────────────────────────── */
#tl-name-modal{
  position:fixed;inset:0;background:rgba(0,0,0,.5);
  display:flex;align-items:center;justify-content:center;
  z-index:800;opacity:0;pointer-events:none;transition:opacity .18s;
}
#tl-name-modal.open{opacity:1;pointer-events:all}
#tl-name-box{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:12px;padding:20px;width:300px;
  box-shadow:var(--shadow);
}

/* ── COLOUR PICKER ──────────────────────────────────────────────── */
.tl-colour-grid{display:flex;gap:6px;flex-wrap:wrap}
.tl-colour-dot{
  width:24px;height:24px;border-radius:50%;cursor:pointer;
  border:2px solid transparent;transition:border-color .12s,transform .12s;
}
.tl-colour-dot:hover{transform:scale(1.15)}
.tl-colour-dot.selected{border-color:var(--text)}