/* ============================================================
   烟雨涧 · 工具箱  —— 配色沿用 head.css 的「水墨青灰」
   ============================================================ */
.wrap{
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(26px, 5vw, 56px) clamp(16px, 4vw, 32px) 90px;
}

/* ---------- 区块标题（与 .brand 同一颗圆点） ---------- */
.sec-title{
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 18px;
  font-size: 17px; font-weight: 600; letter-spacing: .12em;
  color: var(--logo);
}
.sec-title::before{
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--dot);
}
.sec-sub{
  margin: -10px 0 20px; padding-left: 15px;
  font-size: 13.5px; color: var(--muted);
}

/* ============================================================
   工具箱首页：卡片网格
   ============================================================ */
.tool-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.tool-card{
  position: relative;
  display: flex; flex-direction: column; gap: 7px;
  padding: 18px 18px 16px;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              border-color .2s var(--ease);
}
.tool-card::before{
  content: "";
  position: absolute; inset: 0 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, var(--dot), transparent);
  opacity: 0;
  transition: opacity .28s var(--ease);
}
.tool-card:hover{ transform: translateY(-3px); border-color: rgba(74,122,112,.28); }
.tool-card:hover::before{ opacity: .6; }
.tool-card:active{ transform: translateY(-1px); }
.tool-card:focus-visible{ outline: 2px solid var(--fg); outline-offset: 2px; }

.tool-card-t{
  font-size: 15.5px; font-weight: 600; letter-spacing: .04em; color: var(--fg);
}
.tool-card-d{ font-size: 13px; line-height: 1.6; color: var(--muted); flex: 1; }
.tool-card-go{
  display: inline-flex; align-items: center; gap: 5px;
  margin-top: 4px;
  font-size: 12.5px; font-weight: 500; letter-spacing: .06em;
  color: var(--dot);
}
.tool-card-go::after{
  content: ""; width: 12px; height: 1.5px; border-radius: 2px;
  background: currentColor;
  transition: width .25s var(--ease);
}
.tool-card:hover .tool-card-go::after{ width: 20px; }

/* 没写好的工具：灰掉不可点 */
.tool-card.is-off{ opacity: .5; pointer-events: none; box-shadow: none; }

/* ============================================================
   工具页通用面板
   ============================================================ */
.panel{
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel::before{
  content: "";
  position: absolute; inset: 0 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, var(--dot), transparent);
  opacity: .55;
}
.panel-hd{
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding: 18px clamp(16px, 3vw, 22px) 14px;
  border-bottom: 1px solid var(--line);
}
.panel-t{
  display: flex; align-items: center; gap: 10px;
  margin: 0;
  font-size: 17px; font-weight: 600; letter-spacing: .1em;
  color: var(--logo);
}
.panel-t::before{
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--dot);
  transition: transform .35s var(--ease);
}
.panel-t:hover::before{ transform: scale(1.6); }
.panel-meta{ font-size: 13px; color: var(--muted); }
.panel-bd{ padding: 10px clamp(10px, 2vw, 14px) clamp(12px, 2vw, 16px); }

/* ============================================================
   密码列表
   ============================================================ */
.code-list{ margin: 0; padding: 0; list-style: none; }
.code-row{
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px;
  border-radius: var(--radius);
  transition: background-color .2s var(--ease);
}
.code-row + .code-row{ margin-top: 2px; }
.code-row:hover{ background: var(--hover); }

.code-name{
  position: relative; flex: 1; min-width: 0;
  padding-left: 16px;
  font-size: 14.5px; font-weight: 450; letter-spacing: .02em;
  color: var(--fg);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.code-name::before{
  content: "";
  position: absolute; left: 2px; top: 50%;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--dot); opacity: .7;
  transform: translateY(-50%);
  transition: transform .35s var(--ease), opacity .2s var(--ease);
}
.code-row:hover .code-name::before{ transform: translateY(-50%) scale(1.6); opacity: 1; }

.code-val{
  flex-shrink: 0;
  padding: 4px 10px;
  border: 1px solid var(--line); border-radius: 6px;
  font-family: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 15px; font-weight: 600; letter-spacing: .18em;
  color: var(--fg); background: var(--hover);
}
.code-copy{
  flex-shrink: 0;
  height: 30px; padding: 0 12px;
  border: 0; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; font-family: inherit;
  color: var(--btn-fg); background: var(--btn-bg);
  cursor: pointer;
  transition: background-color .2s var(--ease), transform .15s var(--ease);
}
.code-copy:hover{ background: var(--btn-bg-h); }
.code-copy:active{ transform: translateY(.5px); }
.code-copy:focus-visible{ outline: 2px solid var(--fg); outline-offset: 2px; }
.code-copy.is-done{ background: var(--dot); }

/* ---------- 空 / 错误状态 ---------- */
.empty{
  display: flex; align-items: center; gap: 10px; justify-content: center;
  margin: 0; padding: 26px 14px;
  font-size: 14px; color: var(--muted); text-align: center;
}
.empty::before{
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--muted); opacity: .6;
}
.note{
  margin: 12px 2px 0;
  font-size: 12.5px; line-height: 1.7; color: var(--muted);
}

/* ---------- 回工具箱 ---------- */
.back-hub{
  display: inline-flex; align-items: center; gap: 5px;
  height: 32px; padding: 0 12px 0 9px; margin-top: 18px;
  border-radius: var(--radius);
  font-size: 13.5px; color: var(--muted); text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}
.back-hub::before{
  content: ""; width: 12px; height: 1.5px; border-radius: 2px;
  background: currentColor;
  transition: width .25s var(--ease);
}
.back-hub:hover{ color: var(--fg); background: var(--hover); }
.back-hub:hover::before{ width: 18px; }

/* ---------- 复制提示 toast ---------- */
.toast{
  position: fixed; left: 50%; bottom: 40px; z-index: 200;
  padding: 9px 18px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel-bg); box-shadow: var(--shadow);
  font-size: 13.5px; color: var(--fg);
  transform: translate(-50%, 12px);
  opacity: 0; visibility: hidden;
  transition: opacity .22s var(--ease), transform .22s var(--ease),
              visibility .22s var(--ease);
}
.toast.is-show{ opacity: 1; visibility: visible; transform: translate(-50%, 0); }

@media (max-width: 560px){
  .tool-grid{ grid-template-columns: 1fr; }
  .code-row{ flex-wrap: wrap; gap: 8px; }
  .code-name{ flex: 1 1 100%; }
  .code-val{ flex: 1; text-align: center; }
}