/* ==========================================================
   落叶主机管理系统 - 全局样式
   深色科技风
   ========================================================== */
:root{
  --bg:#06080f;
  --bg2:#0a0e1a;
  --panel:rgba(255,255,255,.035);
  --panel-solid:#0d1220;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --txt:#e8ecf6;
  --dim:#8b95ad;
  --dim2:#5d6779;
  --cyan:#22e5ff;
  --violet:#8b6bff;
  --pink:#ff5d8f;
  --green:#4ade80;
  --amber:#fbbf24;
  --red:#ff6b8a;
  --radius:14px;
  --radius-sm:9px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg);color:var(--txt);font-family:var(--font);
  line-height:1.65;-webkit-font-smoothing:antialiased;font-size:14px;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(50vw 50vw at 12% 6%,rgba(34,229,255,.10),transparent 58%),
    radial-gradient(46vw 46vw at 88% 18%,rgba(139,107,255,.11),transparent 58%),
    radial-gradient(44vw 44vw at 50% 100%,rgba(255,93,143,.055),transparent 58%);
}
a{color:inherit;text-decoration:none}
::selection{background:rgba(34,229,255,.28)}

/* 滚动条 */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.13);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.24)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;position:relative;overflow:hidden;
  backdrop-filter:blur(8px);
}
.card-title{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.card-title .bar{width:3px;height:15px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--violet))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 17px;border-radius:var(--radius-sm);
  font-size:13.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:.2s;font-family:var(--font);white-space:nowrap;line-height:1.5;
}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:linear-gradient(100deg,var(--cyan),var(--violet));color:#04121a}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 7px 22px rgba(34,229,255,.3)}
.btn-ghost{background:var(--panel);border-color:var(--line);color:var(--txt)}
.btn-ghost:hover:not(:disabled){border-color:var(--cyan);color:var(--cyan)}
.btn-danger{background:rgba(255,107,138,.13);border-color:rgba(255,107,138,.35);color:var(--red)}
.btn-danger:hover:not(:disabled){background:rgba(255,107,138,.22)}
.btn-sm{padding:5px 11px;font-size:12.5px;border-radius:7px}
.btn-xs{padding:3px 9px;font-size:12px;border-radius:6px}
.btn-block{width:100%;justify-content:center}

/* ---------- 表单 ---------- */
.input,select.input,textarea.input{
  width:100%;padding:10px 13px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--txt);font-size:14px;font-family:var(--font);transition:.2s;
}
.input:focus{outline:none;border-color:var(--cyan);background:rgba(34,229,255,.05);
  box-shadow:0 0 0 3px rgba(34,229,255,.1)}
.input::placeholder{color:#4d566a}
textarea.input{resize:vertical;line-height:1.6}
select.input{cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b95ad' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
select.input option{background:var(--panel-solid);color:var(--txt)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;font-family:var(--mono);letter-spacing:.2px}
.badge-green{background:rgba(74,222,128,.13);color:var(--green);border:1px solid rgba(74,222,128,.3)}
.badge-amber{background:rgba(251,191,36,.13);color:var(--amber);border:1px solid rgba(251,191,36,.3)}
.badge-red{background:rgba(255,107,138,.13);color:var(--red);border:1px solid rgba(255,107,138,.3)}
.badge-dim{background:rgba(255,255,255,.06);color:var(--dim);border:1px solid var(--line)}
.badge-cyan{background:rgba(34,229,255,.12);color:var(--cyan);border:1px solid rgba(34,229,255,.3)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line)}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px;min-width:780px}
table.tbl thead th{
  background:rgba(255,255,255,.04);padding:12px 14px;text-align:left;
  font-size:12.5px;font-weight:600;color:var(--dim);white-space:nowrap;
  border-bottom:1px solid var(--line);
}
table.tbl tbody td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:middle}
table.tbl tbody tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:rgba(34,229,255,.035)}

/* 主机列表列数较多，给足最小宽度并让长文本自然换行，避免备注/地址被挤成窄条 */
table.tbl.tbl-wide{min-width:1080px}
table.tbl tbody td.cell-addr{min-width:210px;line-height:1.55}
table.tbl tbody td.cell-note{min-width:110px;max-width:200px}
/* 允许折行的通用单元（覆盖 thead 的 nowrap 影响范围） */
table.tbl tbody td.wrap{white-space:normal;word-break:break-word}
.mono{font-family:var(--mono);font-size:12.5px;letter-spacing:.3px}

/* ---------- 进度条 ---------- */
.bar-track{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;transition:width .6s cubic-bezier(.22,1,.36,1)}
.bar-ok{background:linear-gradient(90deg,var(--cyan),var(--violet))}
.bar-warn{background:linear-gradient(90deg,var(--amber),#f97316)}
.bar-danger{background:linear-gradient(90deg,var(--red),#e11d48)}

/* ---------- 提示 ---------- */
.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:13.5px;line-height:1.7;margin-bottom:16px}
.alert-info{background:rgba(34,229,255,.07);border:1px solid rgba(34,229,255,.22);color:#bfe9f5}
.alert-warn{background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.25);color:#f5e0a8}
.alert-danger{background:rgba(255,107,138,.08);border:1px solid rgba(255,107,138,.28);color:#f8c4d0}
.alert-success{background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.25);color:#c3f0d4}

/* ---------- Toast ---------- */
#toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);z-index:9999;
  background:rgba(13,18,32,.97);border:1px solid rgba(34,229,255,.4);color:var(--txt);
  padding:11px 22px;border-radius:999px;font-size:13.5px;opacity:0;pointer-events:none;
  transition:.28s;box-shadow:0 10px 40px rgba(0,0,0,.5)}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast.err{border-color:rgba(255,107,138,.5)}

/* ---------- 弹窗 ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(3,5,10,.76);z-index:900;
  display:none;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}
.modal-mask.show{display:flex}
.modal{background:var(--panel-solid);border:1px solid var(--line-strong);border-radius:var(--radius);
  width:100%;max-width:520px;max-height:88vh;overflow-y:auto;box-shadow:0 24px 70px rgba(0,0,0,.6)}
.modal-head{padding:18px 22px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between}
.modal-head h3{font-size:15.5px;font-weight:700}
.modal-body{padding:22px}
.modal-foot{padding:16px 22px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}
.modal-close{background:none;border:none;color:var(--dim);font-size:22px;cursor:pointer;line-height:1;
  padding:2px 6px;border-radius:6px;transition:.2s}
.modal-close:hover{color:var(--red);background:rgba(255,107,138,.1)}

/* ---------- 统计卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;position:relative;overflow:hidden;transition:.28s}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(34,229,255,.4);
  box-shadow:0 12px 34px rgba(0,0,0,.35)}
.stat-card .ico{position:absolute;right:14px;top:14px;opacity:.14;font-size:30px;line-height:1}
.stat-card .val{font-size:27px;font-weight:800;letter-spacing:-.5px;line-height:1.25;
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat-card .lbl{font-size:12.5px;color:var(--dim);margin-top:3px}

/* ---------- 工具 ---------- */
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}
.gap4{gap:4px}.gap8{gap:8px}.gap12{gap:12px}.gap16{gap:16px}.wrap{flex-wrap:wrap}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.mb8{margin-bottom:8px}.mb16{margin-bottom:16px}.mb24{margin-bottom:24px}
.right{margin-left:auto}
.muted{color:var(--dim)}
.small{font-size:12.5px}
.tiny{font-size:11.5px}
.ellip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:middle}
.center-txt{text-align:center}
.hidden{display:none!important}
.spin{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.25);
  border-top-color:var(--cyan);border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{padding:52px 20px;text-align:center;color:var(--dim2);font-size:13.5px}
.empty .big{font-size:40px;opacity:.35;margin-bottom:10px}