/* LinkPilot — 響應式樣式表（手機優先） */
:root{
  --brand:#1a73e8; --brand-dk:#14487f; --brand-lt:#e8f0fe;
  --ink:#1f2430; --ink-2:#5a6577; --ink-3:#8b95a7;
  --bg:#f5f7fb; --card:#ffffff; --line:#e3e8f0;
  --ok:#17803d; --ok-bg:#e9f7ee; --warn:#b26a00; --warn-bg:#fff5e6;
  --err:#c0392b; --err-bg:#fdeceb;
  --r:14px; --shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  background:var(--bg); color:var(--ink); font-size:16.5px; line-height:1.78;
  -webkit-text-size-adjust:100%;
}
a{color:var(--brand); text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.35; margin:0 0 .4em}
h1{font-size:1.7rem} h2{font-size:1.3rem} h3{font-size:1.1rem}
img,svg{max-width:100%}
.wrap{width:100%; max-width:1140px; margin:0 auto; padding:0 16px}

/* ---------- 導覽列 ---------- */
.nav{position:sticky; top:0; z-index:40; background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px); border-bottom:1px solid var(--line)}
.nav-in{display:flex; align-items:center; gap:12px; height:58px}
.logo{display:flex; align-items:center; gap:9px; font-weight:800; color:var(--ink); font-size:1.05rem}
.logo:hover{text-decoration:none}
.logo-mark{min-width:34px;height:30px;padding:0 7px;border-radius:8px;
  background:linear-gradient(135deg,#1a73e8,#4f9bf5);
  display:grid;place-items:center;color:#fff;font-size:13px;font-weight:800;letter-spacing:.5px}
.nav-spacer{flex:1}
.nav-links{display:flex; gap:6px; align-items:center}
.nav-links a{padding:8px 13px; border-radius:9px; color:var(--ink-2); font-size:1rem; font-weight:600}
.nav-links a:hover{background:var(--brand-lt); color:var(--brand-dk); text-decoration:none}
.nav-links a.active{background:var(--brand-lt); color:var(--brand-dk)}
.nav-links a.btn-primary{background:var(--brand); color:#fff}
.nav-links a.btn-primary:hover{background:#1666d0; color:#fff}
.chart{width:100%; height:auto; display:block}
.nav-toggle{display:none; background:none; border:1px solid var(--line); border-radius:9px;
  width:38px; height:36px; font-size:17px; cursor:pointer}
@media(max-width:780px){
  .nav-toggle{display:block}
  .nav-links{position:absolute; top:58px; left:0; right:0; background:#fff; flex-direction:column;
    align-items:stretch; padding:8px 12px 14px; border-bottom:1px solid var(--line); display:none}
  .nav-links.open{display:flex}
  .nav-links a,.nav-links .btn{width:100%; text-align:center}
}

/* ---------- 按鈕 / 表單 ---------- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:6px;
  padding:11px 18px; border-radius:10px; border:1px solid transparent; font-size:1rem;
  font-weight:700; cursor:pointer; font-family:inherit; transition:.15s; white-space:nowrap}
.btn:hover{text-decoration:none; transform:translateY(-1px)}
.btn:active{transform:none}
.btn-primary{background:var(--brand); color:#fff}
.btn-primary:hover{background:#1666d0}
.btn-ghost{background:#fff; color:var(--ink-2); border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand); color:var(--brand)}
.btn-danger{background:#fff; color:var(--err); border-color:#f3c9c4}
.btn-danger:hover{background:var(--err-bg)}
.btn-sm{padding:7px 13px; font-size:.92rem; border-radius:8px}
.btn:disabled{opacity:.55; cursor:not-allowed; transform:none}
.input,select,textarea{width:100%; padding:11px 13px; border:1px solid var(--line); border-radius:10px;
  font-size:1.02rem; font-family:inherit; background:#fff; color:var(--ink); outline:none}
.input:focus,select:focus,textarea:focus{border-color:var(--brand); box-shadow:0 0 0 3px rgba(26,115,232,.13)}
textarea{resize:vertical; min-height:70px}
label{display:block; font-size:.95rem; font-weight:700; color:var(--ink-2); margin:0 0 6px}
.field{margin-bottom:14px}
.row{display:flex; gap:12px; flex-wrap:wrap}
.row>*{flex:1 1 180px; min-width:0}
.hint{font-size:.9rem; color:var(--ink-3); margin-top:6px}
.err{color:var(--err); font-size:.95rem}

/* ---------- 卡片 ---------- */
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  padding:18px; box-shadow:var(--shadow); margin-bottom:16px}
.card-head{display:flex; align-items:center; gap:10px; margin-bottom:12px; flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0}
.card-head .sp{flex:1}
.section{padding:34px 0}
.muted{color:var(--ink-3)}
.tag{display:inline-block; background:var(--brand-lt); color:var(--brand-dk); border-radius:6px;
  padding:3px 10px; font-size:.85rem; font-weight:700; margin:0 4px 4px 0}
.tag-ok{background:var(--ok-bg); color:var(--ok)}
.tag-warn{background:var(--warn-bg); color:var(--warn)}
.tag-err{background:var(--err-bg); color:var(--err)}

/* ---------- 首頁 ---------- */
.hero{background:linear-gradient(165deg,#0f2a4a,#1a73e8 78%); color:#fff; padding:44px 0 54px}
.hero h1{font-size:2.1rem; letter-spacing:.5px}
.hero p{opacity:.92; margin:0 0 20px; font-size:1.1rem}
@media(min-width:760px){.hero{padding:64px 0 72px} .hero h1{font-size:2.8rem}}
.shorten-box{background:#fff; border-radius:16px; padding:16px; box-shadow:0 18px 40px rgba(8,25,50,.22)}
.shorten-row{display:flex; gap:10px; flex-direction:column}
@media(min-width:700px){.shorten-row{flex-direction:row}
  .shorten-row .input{flex:1} .shorten-row .btn{flex:0 0 auto; padding-inline:26px}}
.shorten-note{display:flex; align-items:center; gap:8px; flex-wrap:wrap;
  margin:12px 0 2px; padding:10px 12px; background:#f2f7ff; border:1px solid #d8e6fb;
  border-radius:10px}
.sn-badge{background:var(--brand); color:#fff; border-radius:6px; padding:2px 10px;
  font-size:.86rem; font-weight:800; letter-spacing:.5px}
.sn-text{font-size:.95rem; color:var(--brand-dk); font-weight:600; flex:1 1 240px; line-height:1.65}
.sn-text code{background:#fff; border:1px solid #d8e6fb; border-radius:5px; padding:1px 6px;
  font-size:.92rem; color:var(--brand-dk)}
.feat code{background:var(--brand-lt); border-radius:5px; padding:1px 6px; font-size:.9rem}
@media(max-width:520px){ .sn-text{font-size:.9rem} }
.adv-toggle{background:none;border:none;color:var(--brand);font-weight:700;cursor:pointer;
  font-size:.98rem;padding:9px 2px;font-family:inherit}
.result{margin-top:14px; border-top:1px dashed var(--line); padding-top:14px; display:none}
.result.show{display:block}
.short-url{display:flex; align-items:center; gap:10px; background:var(--brand-lt);
  border-radius:10px; padding:11px 13px; flex-wrap:wrap}
.short-url code{font-size:1.12rem; font-weight:800; color:var(--brand-dk); word-break:break-all; flex:1}
.features{display:grid; grid-template-columns:1fr; gap:14px}
@media(min-width:640px){.features{grid-template-columns:1fr 1fr}}
@media(min-width:980px){.features{grid-template-columns:repeat(3,1fr)}}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px}
.feat .ico{width:38px;height:38px;border-radius:10px;background:var(--brand-lt);display:grid;
  place-items:center;font-size:19px;margin-bottom:10px}
.feat h3{font-size:1.1rem;margin-bottom:5px}
.feat p{margin:0;color:var(--ink-2);font-size:.98rem}

/* ---------- 統計磚 ---------- */
.stats-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px; margin-bottom:16px}
@media(min-width:760px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.stat .k{font-size:.9rem;color:var(--ink-3);font-weight:700;letter-spacing:.3px}
.stat .v{font-size:2rem;font-weight:800;color:var(--brand-dk);line-height:1.22}
.stat .s{font-size:.85rem;color:var(--ink-3)}

/* ---------- 圖表 ---------- */

.barlist{display:flex; flex-direction:column; gap:9px}
.barrow{display:grid; grid-template-columns:104px 1fr 54px; align-items:center; gap:10px; font-size:.95rem}
.barrow .lb{color:var(--ink-2); font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.bartrack{background:#eef2f7; border-radius:5px; height:12px; overflow:hidden}
.barfill{background:linear-gradient(90deg,#1a73e8,#5aa2f7); height:100%; border-radius:5px}
.barrow .vl{text-align:right; font-weight:800; color:var(--ink)}
@media(max-width:480px){.barrow{grid-template-columns:88px 1fr 46px; font-size:.9rem}}
.heat{display:grid; grid-template-columns:34px repeat(24,1fr); gap:2px; font-size:.62rem}
.heat .hcell{aspect-ratio:1; border-radius:2px; background:#eef2f7}
.heat .hlabel{color:var(--ink-3); display:flex; align-items:center; justify-content:flex-end; padding-right:4px}
.heat .htop{color:var(--ink-3); text-align:center}
.chart-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch}

/* ---------- 表格（手機自動轉卡片） ---------- */
.table{width:100%; border-collapse:collapse; font-size:1rem}
.table th{text-align:left; padding:10px; background:#f7f9fc; color:var(--ink-2);
  font-size:.88rem; letter-spacing:.3px; border-bottom:1px solid var(--line); white-space:nowrap}
.table td{padding:11px 10px; border-bottom:1px solid var(--line); vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table .nowrap{white-space:nowrap}
.trunc{max-width:280px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
@media(max-width:820px){
  .table,.table tbody,.table tr,.table td{display:block; width:100%}
  .table thead{display:none}
  .table tr{border:1px solid var(--line); border-radius:12px; margin-bottom:10px; padding:8px 4px; background:#fff}
  .table td{border:none; padding:6px 12px; display:block}
  .table td::before{content:attr(data-l); display:block; color:var(--ink-3); font-size:.85rem;
    font-weight:700; letter-spacing:.3px; margin-bottom:1px}
  .table td:not(:last-child){border-bottom:1px dashed #f0f3f8}
  .trunc{max-width:100%; white-space:normal; word-break:break-all}
}

/* ---------- 分頁籤 ---------- */
.tabs{display:flex; gap:4px; border-bottom:1px solid var(--line); margin-bottom:18px; overflow-x:auto}
.tabs button{background:none; border:none; padding:12px 16px; font-size:1.05rem; font-weight:700;
  color:var(--ink-3); cursor:pointer; border-bottom:3px solid transparent; font-family:inherit; white-space:nowrap}
.tabs button.active{color:var(--brand); border-bottom-color:var(--brand)}
.tab-page{display:none}
.tab-page.active{display:block}

/* ---------- 對話框 ---------- */
.modal{position:fixed; inset:0; background:rgba(15,32,60,.45); display:none;
  align-items:flex-start; justify-content:center; padding:16px; z-index:60; overflow-y:auto}
.modal.open{display:flex}
.modal-box{background:#fff; border-radius:16px; width:100%; max-width:620px; padding:20px;
  margin:24px 0; box-shadow:0 24px 60px rgba(8,25,50,.3)}
.modal-box.wide{max-width:900px}

/* ---------- 提示訊息 ---------- */
.toast{position:fixed; left:50%; transform:translateX(-50%); bottom:22px; z-index:80;
  background:#12233a; color:#fff; padding:11px 18px; border-radius:11px; font-size:.9rem;
  font-weight:600; opacity:0; pointer-events:none; transition:.25s; max-width:90vw; text-align:center; font-size:1rem}
.toast.show{opacity:1; bottom:32px}
.toast.err{background:#a5281b}

/* ---------- 訊息頁 ---------- */
.center-page{display:grid; place-items:center; min-height:100vh; padding:20px}
.msg-card{background:#fff; border-radius:18px; padding:32px 26px; max-width:400px; width:100%;
  text-align:center; box-shadow:var(--shadow)}
.msg-icon{font-size:38px; margin-bottom:6px}
.msg-card h1{font-size:1.4rem}
.msg-card p{color:var(--ink-2); font-size:1.02rem}
.msg-card .input{margin:12px 0}
.msg-card .btn{width:100%; margin-top:6px}

/* ---------- 頁尾 ---------- */
.footer{border-top:1px solid var(--line); background:#fff; padding:26px 0; margin-top:30px;
  color:var(--ink-3); font-size:.95rem; text-align:center}

/* ---------- 其他 ---------- */
.split{display:grid; grid-template-columns:1fr; gap:16px}
@media(min-width:900px){.split{grid-template-columns:1.35fr 1fr}}
.empty{text-align:center; padding:34px 12px; color:var(--ink-3)}
.qr-wrap{display:flex; gap:16px; align-items:center; flex-wrap:wrap}
.qr-wrap svg{border:1px solid var(--line); border-radius:10px; background:#fff}
.qr-click{cursor:zoom-in; display:inline-block; line-height:0}
.qr-click:hover svg{border-color:var(--brand)}
.bigqr{position:fixed; inset:0; background:#fff; z-index:200; display:none;
  align-items:center; justify-content:center; padding:20px; cursor:zoom-out}
.bigqr.open{display:flex}
.bigqr-inner{text-align:center; max-width:100%}
.bigqr-inner svg{width:auto; max-width:100%; height:auto}
.bigqr-url{margin-top:14px; font-size:1rem; font-weight:700; color:var(--brand-dk); word-break:break-all}
.bigqr-tip{margin-top:8px; font-size:.95rem; color:var(--ink-3)}
.copy-ok{color:var(--ok); font-weight:700; font-size:.82rem}
.seg{display:flex; gap:8px; flex-wrap:wrap}
.seg-item{display:flex; align-items:center; gap:6px; border:1px solid var(--line); background:#fff;
  border-radius:10px; padding:8px 12px; cursor:pointer; font-size:.88rem; font-weight:600;
  color:var(--ink-2); margin:0; flex:1 1 180px}
.seg-item:has(input:checked){border-color:var(--brand); background:var(--brand-lt); color:var(--brand-dk)}
.seg-item input{accent-color:var(--brand); margin:0}
.list-actions{display:flex; gap:6px; flex-wrap:wrap}
.badge{font-size:.72rem; padding:2px 8px; border-radius:20px; font-weight:800}
.badge.on{background:var(--ok-bg); color:var(--ok)}
.badge.off{background:var(--err-bg); color:var(--err)}
.badge.adm{background:#efe6ff; color:#6b3fd4}

/* ---------- 手機字級加大（避免 iOS 自動縮放與看不清楚） ---------- */
@media(max-width:780px){
  body{font-size:17px; line-height:1.8}
  h1{font-size:1.65rem} h2{font-size:1.28rem} h3{font-size:1.12rem}
  .input,select,textarea{font-size:16px; padding:13px 14px}   /* ≥16px 才不會被 iOS 放大 */
  .btn{padding:12px 18px; font-size:1.02rem}
  .btn-sm{padding:9px 14px; font-size:.96rem}
  .stat .v{font-size:2.1rem}
  .table{font-size:1.02rem}
  .tabs button{font-size:1.05rem; padding:12px 14px}
  .short-url code{font-size:1.05rem}
  .hint{font-size:.92rem}
  .list-actions .btn{flex:1 1 auto; min-width:74px}
}
@media(max-width:420px){
  body{font-size:17.5px}
  .hero h1{font-size:1.75rem}
}