/* ==========================================================================
   wc-comments.css — lớp bình luận kiểu Figma cho trang HTML tĩnh
   Mọi class đều có tiền tố wc- để không đụng layout của tài liệu gốc.
   ========================================================================== */

:root{
  --wc-z-hl: 40;
  --wc-z-pin: 8000;
  --wc-z-pop: 8600;
  --wc-z-panel: 8400;
  --wc-z-fab: 8300;
  --wc-z-modal: 9000;

  --wc-ink: #0b1533;
  --wc-ink-2: #3a4668;
  --wc-ink-3: #647092;
  --wc-card: #ffffff;
  --wc-paper: #f4f6fc;
  --wc-line: #d3d9ea;
  --wc-line-2: #e6eaf4;
  --wc-brand: #173dc9;
  --wc-brand-soft: #e6eafc;
  --wc-ok: #0a6b4d;
  --wc-warn: #96620a;
  --wc-warn-soft: #fbf0dc;
  --wc-danger: #b8232c;
  --wc-hl: #fde68a;
  --wc-hl-strong: #fbbf24;

  --wc-font: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --wc-shadow: 0 8px 28px rgba(11, 21, 51, .16), 0 2px 6px rgba(11, 21, 51, .08);
}

/* Ẩn toàn bộ lớp bình luận khi in */
@media print{
  .wc-root, .wc-pin-layer, .wc-fab, .wc-panel, .wc-pop, .wc-modal, .wc-affordance{
    display: none !important;
  }
  mark.wc-hl{ background: transparent !important; box-shadow: none !important; }
  /* Highlight vẽ bằng CSS Custom Highlight API cũng phải tắt khi in */
  ::highlight(wc-hl){ background-color: transparent; }
  ::highlight(wc-hl-hot){ background-color: transparent; }
}

/* Chế độ ẩn bình luận (đọc tài liệu sạch) */
.wc-hidden-mode .wc-pin-layer,
.wc-hidden-mode .wc-pop,
.wc-hidden-mode .wc-affordance{ display: none !important; }
.wc-hidden-mode mark.wc-hl{ background: transparent; box-shadow: none; }

.wc-root, .wc-pin-layer, .wc-fab, .wc-panel, .wc-pop, .wc-modal, .wc-affordance,
.wc-root *, .wc-pin-layer *, .wc-fab *, .wc-panel *, .wc-pop *, .wc-modal *{
  box-sizing: border-box;
}
.wc-fab button, .wc-panel button, .wc-pop button, .wc-modal button, .wc-affordance{
  font-family: inherit; cursor: pointer;
}

/* ===== Lớp chứa pin ===== */
.wc-pin-layer{
  position: absolute;
  inset: 0 auto auto 0;
  width: 0; height: 0;
  z-index: var(--wc-z-pin);
  pointer-events: none;
  font-family: var(--wc-font);
}
.wc-pin{
  position: absolute;
  width: 24px; height: 24px;
  border-radius: 50% 50% 50% 2px;
  display: inline-flex; align-items: center; justify-content: center;
  font: 700 11.5px/1 var(--wc-font);
  text-transform: uppercase;
  color: #fff;
  background: var(--wc-brand);
  border: 2px solid #fff;
  box-shadow: 0 2px 8px rgba(11, 21, 51, .28);
  pointer-events: auto;
  cursor: pointer;
  transform: translate(-50%, -100%);
  transition: transform .12s ease, box-shadow .12s ease, opacity .15s ease;
  user-select: none;
}
.wc-pin:hover, .wc-pin.wc-active{
  transform: translate(-50%, -100%) scale(1.15);
  box-shadow: 0 4px 14px rgba(11, 21, 51, .34);
}
.wc-pin.wc-resolved{ opacity: .45; background: var(--wc-ok); }
.wc-pin.wc-resolved::after{ content: "✓"; font-size: 12px; }
.wc-pin.wc-resolved span{ display: none; }
.wc-pin.wc-orphan{ background: var(--wc-ink-3); }
@keyframes wc-blink{
  0%, 100%{ transform: translate(-50%, -100%) scale(1);
            box-shadow: 0 2px 8px rgba(11, 21, 51, .28); }
  25%, 75%{ transform: translate(-50%, -100%) scale(1.5);
            box-shadow: 0 0 0 8px rgba(23, 61, 201, .28), 0 2px 8px rgba(11, 21, 51, .28); }
}
/* Nhấp nháy kèm vòng sáng để tìm ra pin trong sơ đồ rộng */
.wc-pin.wc-blink{ animation: wc-blink .5s ease 3; z-index: 1; }

/* ===== Highlight đoạn chữ (fallback khi không có CSS Custom Highlight API) ===== */
mark.wc-hl{
  background: var(--wc-hl);
  color: inherit;
  padding: 0;
  border-radius: 2px;
  transition: background .15s ease;
}
mark.wc-hl.wc-hl-hot{ background: var(--wc-hl-strong); }
mark.wc-hl.wc-hl-overlap{ background: var(--wc-hl-strong); }

/* ===== Nút affordance "+ Bình luận" ===== */
.wc-affordance{
  position: absolute;
  z-index: var(--wc-z-pop);
  font-family: var(--wc-font);
  font-size: 12px; font-weight: 600;
  color: #fff; background: var(--wc-brand);
  border: none; border-radius: 6px;
  padding: 6px 10px;
  box-shadow: var(--wc-shadow);
  white-space: nowrap;
  transform: translate(-50%, -130%);
  animation: wc-fade .12s ease;
}
.wc-affordance:hover{ filter: brightness(1.12); }
@keyframes wc-fade{ from{ opacity: 0; transform: translate(-50%, -110%); } }

/* ===== Nút nổi góc phải dưới ===== */
.wc-fab{
  position: fixed;
  right: 18px; bottom: 18px;
  z-index: var(--wc-z-fab);
  display: flex; gap: 6px; align-items: stretch;
  font-family: var(--wc-font);
}
.wc-fab button{
  border: 1px solid var(--wc-line);
  background: var(--wc-card);
  color: var(--wc-ink);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 13px; font-weight: 600;
  box-shadow: var(--wc-shadow);
}
.wc-fab button.wc-fab-main{
  background: var(--wc-brand); color: #fff; border-color: var(--wc-brand);
}
.wc-fab button:hover{ filter: brightness(1.06); }
.wc-fab button.wc-fab-toggle{ padding: 10px 12px; }

/* ===== Panel danh sách ===== */
.wc-panel{
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 360px;
  z-index: var(--wc-z-panel);
  background: var(--wc-card);
  border-left: 1px solid var(--wc-line);
  box-shadow: -10px 0 30px rgba(11, 21, 51, .10);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform .22s cubic-bezier(.4, 0, .2, 1);
  font-family: var(--wc-font);
  color: var(--wc-ink);
}
.wc-panel.wc-open{ transform: translateX(0); }
.wc-panel-head{
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--wc-line-2);
  display: flex; flex-direction: column; gap: 10px;
}
.wc-panel-title{
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.wc-panel-title b{ font-size: 15px; font-weight: 800; }
.wc-icon-btn{
  border: none; background: transparent; color: var(--wc-ink-3);
  font-size: 18px; line-height: 1; padding: 4px 6px; border-radius: 4px;
}
.wc-icon-btn:hover{ background: var(--wc-paper); color: var(--wc-ink); }
.wc-filters{ display: flex; gap: 6px; }
.wc-filters button{
  flex: 1;
  border: 1px solid var(--wc-line);
  background: var(--wc-card);
  color: var(--wc-ink-2);
  border-radius: 5px; padding: 5px 8px;
  font-size: 12px; font-weight: 600;
}
.wc-filters button[aria-pressed="true"]{
  background: var(--wc-brand-soft); border-color: var(--wc-brand); color: var(--wc-brand);
}
.wc-who{
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--wc-ink-3);
}
.wc-who button{
  border: none; background: transparent; color: var(--wc-brand);
  font-size: 12px; font-weight: 600; padding: 0; text-decoration: underline;
}
.wc-demo-note{
  margin: 0 16px 8px;
  background: var(--wc-warn-soft);
  border-left: 3px solid var(--wc-warn);
  color: var(--wc-ink-2);
  font-size: 11.5px; line-height: 1.45;
  padding: 7px 10px; border-radius: 0 3px 3px 0;
}
.wc-panel-list{ overflow-y: auto; padding: 8px 12px 20px; flex: 1; }
.wc-empty{ color: var(--wc-ink-3); font-size: 13px; text-align: center; padding: 30px 10px; }

.wc-item{
  border: 1px solid var(--wc-line-2);
  border-radius: 6px; padding: 10px 11px; margin-bottom: 8px;
  cursor: pointer; background: var(--wc-card);
}
.wc-item:hover{ border-color: var(--wc-brand); background: var(--wc-paper); }
.wc-item.wc-item-resolved{ opacity: .6; }
.wc-item-top{ display: flex; align-items: center; gap: 7px; margin-bottom: 5px; }
.wc-item-body{ font-size: 12.5px; line-height: 1.5; color: var(--wc-ink-2); word-break: break-word; }
.wc-item-quote{
  font-size: 11.5px; color: var(--wc-ink-3);
  border-left: 2px solid var(--wc-hl-strong);
  padding-left: 7px; margin: 4px 0 5px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.wc-item-meta{ font-size: 11px; color: var(--wc-ink-3); margin-top: 5px; display: flex; gap: 8px; flex-wrap: wrap; }
.wc-badge{
  display: inline-block; font-size: 10px; font-weight: 700;
  padding: 1px 6px; border-radius: 3px;
  background: var(--wc-warn-soft); color: var(--wc-warn);
}
.wc-badge.wc-badge-ok{ background: #e0f3ec; color: var(--wc-ok); }

/* ===== Avatar ===== */
.wc-av{
  flex: 0 0 auto;
  width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font: 700 10px/1 var(--wc-font); color: #fff;
  text-transform: uppercase;
}

/* ===== Popover thread ===== */
.wc-pop{
  position: absolute;
  z-index: var(--wc-z-pop);
  width: 320px;
  max-height: 72vh;
  background: var(--wc-card);
  border: 1px solid var(--wc-line);
  border-radius: 8px;
  box-shadow: var(--wc-shadow);
  font-family: var(--wc-font);
  color: var(--wc-ink);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.wc-pop-scroll{ overflow-y: auto; padding: 12px 13px; }
.wc-msg{ margin-bottom: 12px; }
.wc-msg:last-child{ margin-bottom: 0; }
.wc-msg-head{ display: flex; align-items: center; gap: 7px; margin-bottom: 4px; }
.wc-msg-name{ font-size: 12.5px; font-weight: 700; }
.wc-msg-time{ font-size: 11px; color: var(--wc-ink-3); margin-left: auto; }
.wc-msg-body{
  font-size: 13px; line-height: 1.55; color: var(--wc-ink-2);
  white-space: pre-wrap; word-break: break-word;
}
.wc-msg-body a{ color: var(--wc-brand); }
.wc-msg-actions{ display: flex; gap: 10px; margin-top: 5px; }
.wc-msg-actions button{
  border: none; background: transparent; padding: 0;
  font-size: 11.5px; font-weight: 600; color: var(--wc-ink-3);
}
.wc-msg-actions button:hover{ color: var(--wc-brand); text-decoration: underline; }
.wc-msg-actions button.wc-del:hover{ color: var(--wc-danger); }
.wc-quote{
  font-size: 11.5px; color: var(--wc-ink-3);
  background: var(--wc-paper);
  border-left: 2px solid var(--wc-hl-strong);
  padding: 5px 8px; margin-bottom: 9px; border-radius: 0 3px 3px 0;
  word-break: break-word;
}
.wc-pop-foot{
  border-top: 1px solid var(--wc-line-2);
  padding: 9px 11px;
  display: flex; flex-direction: column; gap: 7px;
  background: var(--wc-paper);
}
.wc-pop-bar{ display: flex; gap: 7px; align-items: center; }
.wc-pop-bar button{
  border: 1px solid var(--wc-line);
  background: var(--wc-card); color: var(--wc-ink-2);
  border-radius: 5px; padding: 5px 10px;
  font-size: 12px; font-weight: 600;
}
.wc-pop-bar button:hover{ border-color: var(--wc-brand); color: var(--wc-brand); }
.wc-pop-bar button.wc-primary{
  background: var(--wc-brand); border-color: var(--wc-brand); color: #fff;
}
.wc-pop-bar button.wc-primary:hover{ filter: brightness(1.1); color: #fff; }
.wc-pop-bar .wc-spacer{ margin-left: auto; }

/* ===== Ô soạn ===== */
.wc-compose{ display: flex; flex-direction: column; gap: 7px; }
.wc-compose textarea{
  width: 100%;
  min-height: 68px; max-height: 200px;
  resize: vertical;
  border: 1px solid var(--wc-line);
  border-radius: 6px;
  padding: 8px 9px;
  font: 400 13px/1.5 var(--wc-font);
  color: var(--wc-ink);
  background: var(--wc-card);
}
.wc-compose textarea:focus{
  outline: 2px solid var(--wc-brand); outline-offset: -1px; border-color: var(--wc-brand);
}
.wc-hint{ font-size: 11px; color: var(--wc-ink-3); }
.wc-err{
  font-size: 11.5px; color: var(--wc-danger);
  background: #fce7e8; border-radius: 4px; padding: 5px 8px;
}

/* ===== Modal nhập tên ===== */
.wc-modal{
  position: fixed; inset: 0;
  z-index: var(--wc-z-modal);
  background: rgba(11, 21, 51, .38);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  font-family: var(--wc-font);
}
.wc-modal-box{
  width: 100%; max-width: 340px;
  background: var(--wc-card);
  border-radius: 10px;
  padding: 18px 18px 15px;
  box-shadow: var(--wc-shadow);
  color: var(--wc-ink);
}
.wc-modal-box h3{ font-size: 15px; font-weight: 800; margin: 0 0 4px; }
.wc-modal-box p{ font-size: 12.5px; color: var(--wc-ink-3); margin: 0 0 12px; line-height: 1.5; }
.wc-modal-box input{
  width: 100%;
  border: 1px solid var(--wc-line); border-radius: 6px;
  padding: 9px 10px;
  font: 400 14px/1.4 var(--wc-font); color: var(--wc-ink);
  background: var(--wc-card);
}
.wc-modal-box input:focus{ outline: 2px solid var(--wc-brand); outline-offset: -1px; }
.wc-name-msg{
  font-size: 12.5px; line-height: 1.55; margin-top: 10px;
  padding: 9px 11px; border-radius: 5px; border-left: 3px solid;
}
.wc-name-msg b{ font-weight: 700; }
.wc-name-canh-bao{ background: #fbf0dc; border-color: #96620a; color: #5f3f06; }
.wc-name-loi{ background: #fce7e8; border-color: #b8232c; color: #8d1a21; }
.wc-modal-box input:disabled{ background: var(--wc-bg-2, #f4f6fc); color: var(--wc-ink-3); }

.wc-modal-actions{ display: flex; gap: 8px; justify-content: flex-end; margin-top: 12px; }
.wc-modal-actions button{
  border: 1px solid var(--wc-line); background: var(--wc-card); color: var(--wc-ink-2);
  border-radius: 6px; padding: 7px 14px; font-size: 13px; font-weight: 600;
}
.wc-modal-actions button.wc-primary{
  background: var(--wc-brand); border-color: var(--wc-brand); color: #fff;
}

/* ===== Mobile ===== */
@media (max-width: 480px){
  .wc-panel{ width: 100%; border-left: none; }
  .wc-pop{ width: calc(100vw - 24px); max-width: 340px; }
  .wc-fab{ right: 12px; bottom: 12px; }
  .wc-fab button{ padding: 9px 13px; font-size: 12.5px; }
}

/* CSS Custom Highlight API — dùng khi trình duyệt hỗ trợ (không sửa DOM) */
::highlight(wc-hl){ background-color: #fde68a; }
::highlight(wc-hl-hot){ background-color: #fbbf24; }