/* 客戶專區：配色與元件沿用報價單產生器（public/admin），手機優先 */
:root{
  --bg:#E7EBEF;--surface:#FFFFFF;--surface2:#F2F4F7;--ink:#14202A;--muted:#5A6572;--line:#D0D7DF;
  --accent:#1B5A87;--accent-ink:#FFFFFF;--danger:#B42318;--note:#8A5A00;--ok:#1F7A4D;
  --font:"Schibsted Grotesk","Noto Sans TC",system-ui,-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0E141A;--surface:#151E27;--surface2:#1B2631;--ink:#E4EAF0;--muted:#93A0AD;--line:#293744;
  --accent:#7DB2DC;--accent-ink:#0E141A;--danger:#F0776B;--note:#E3B25A;--ok:#6BC79A;
}}
:root[data-theme="dark"]{
  --bg:#0E141A;--surface:#151E27;--surface2:#1B2631;--ink:#E4EAF0;--muted:#93A0AD;--line:#293744;
  --accent:#7DB2DC;--accent-ink:#0E141A;--danger:#F0776B;--note:#E3B25A;--ok:#6BC79A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

header.top{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.top-in{max-width:1080px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:10px 16px;flex-wrap:wrap}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:1;min-width:0}
.brand b{font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
nav.tabs{display:flex;gap:2px;order:3;flex-basis:100%;overflow-x:auto;scrollbar-width:none}
nav.tabs a{padding:7px 11px;border-radius:6px;color:var(--muted);font-weight:500;text-decoration:none;white-space:nowrap}
nav.tabs a[aria-current="page"]{color:var(--ink);background:var(--surface2);box-shadow:inset 0 -2px 0 var(--accent)}
@media (min-width:860px){nav.tabs{order:0;flex-basis:auto;flex:none}.brand{flex:none}.top-in{justify-content:space-between}}
@media (max-width:640px){.brand{flex-basis:100%}.brand b{overflow-wrap:anywhere}}
.lang{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;flex-shrink:0}
.lang button{border:0;background:none;padding:5px 9px;font-size:12.5px;cursor:pointer;color:var(--muted);white-space:nowrap}
.lang button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}

main{max-width:1080px;margin:0 auto;padding:20px 16px calc(48px + env(safe-area-inset-bottom,0px))}
h1{font-size:22px;letter-spacing:-.015em;margin:0 0 4px;font-weight:700}
h2{font-size:16px;margin:0 0 10px;font-weight:650}
.sub{color:var(--muted);font-size:13px;margin:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px}
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.muted{color:var(--muted)}.small{font-size:13px}.hint{font-size:12px;color:var(--muted)}.bad{color:var(--danger)}.good{color:var(--ok)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:7px;padding:8px 14px;font-weight:600;font-size:14px;cursor:pointer;white-space:nowrap;text-decoration:none;color:var(--ink)}
.btn:hover{background:var(--surface2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{border-color:transparent;background:none;color:var(--muted)}
.btn.danger{color:var(--danger)}
.btn:disabled{opacity:.5;cursor:default}
.btn.block{width:100%}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}

label.f{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);font-weight:500}
input[type=text],input[type=email],input[type=tel],input:not([type]),select,textarea{
  background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:9px 10px;font-size:15px;width:100%;min-width:0}
input:disabled{background:var(--surface2);color:var(--muted)}
textarea{resize:vertical;min-height:72px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px 14px}
.grid .full{grid-column:1/-1}
.chk{display:flex;align-items:flex-start;gap:8px;font-size:14px;cursor:pointer}
.chk input{margin-top:4px;width:auto}

/* 計數磚 */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:14px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 14px;text-decoration:none;color:var(--ink)}
.tile b{display:block;font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2}
.tile span{font-size:12.5px;color:var(--muted)}
.tile.hot b{color:var(--accent)}
@media (max-width:420px){.tile{padding:10px}.tile b{font-size:22px}}

/* 清單 */
.list{display:flex;flex-direction:column}
.item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;padding:12px 2px;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}
.item:first-child{border-top:0}
.item:hover{background:color-mix(in srgb,var(--surface2) 60%,transparent)}
.item .t{font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .r{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
.item .m{font-size:12.5px;color:var(--muted)}
.empty{padding:22px 4px;text-align:center;color:var(--muted)}
.tag{display:inline-block;font-size:11.5px;padding:1px 8px;border-radius:99px;background:var(--surface2);border:1px solid var(--line);color:var(--muted);white-space:nowrap;font-weight:500}
.tag.act{background:color-mix(in srgb,var(--accent) 14%,var(--surface));border-color:color-mix(in srgb,var(--accent) 40%,var(--line));color:var(--accent)}
.tag.warn{color:var(--note);border-color:color-mix(in srgb,var(--note) 40%,var(--line))}
.tag.done{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 40%,var(--line))}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.filters input{flex:1;min-width:180px}.filters select{width:auto}

/* 金額 */
.kv{display:grid;grid-template-columns:1fr auto;gap:6px 14px;font-size:14px}
.kv .r{text-align:right;font-variant-numeric:tabular-nums}
.grand{display:flex;align-items:baseline;justify-content:space-between;border-top:2px solid var(--ink);margin-top:10px;padding-top:8px;gap:10px}
.grand .amt{font-size:26px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
@media (max-width:900px){.split{grid-template-columns:minmax(0,1fr)}.split>aside{order:-1}}
.notice{border:1px solid var(--line);background:var(--surface2);border-radius:8px;padding:12px 14px;font-size:14px;margin-bottom:14px}
.notice.act{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.notice.warn{border-color:color-mix(in srgb,var(--note) 50%,var(--line))}

/* 報價單預覽（嵌入凍結快照，依寬度縮放） */
.sheetbox{background:#DFE6EB;border-radius:8px;overflow:hidden;position:relative;max-width:100%}
.sheetbox iframe{border:0;display:block;transform-origin:top left;background:#DFE6EB}

/* 時間軸 */
.timeline{list-style:none;margin:0;padding:0}
.timeline li{position:relative;padding:0 0 12px 18px;font-size:14px}
.timeline li::before{content:"";position:absolute;left:3px;top:7px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.timeline li::after{content:"";position:absolute;left:6.5px;top:17px;bottom:0;width:1px;background:var(--line)}
.timeline li:last-child::after{display:none}
.timeline .when{font-size:12px;color:var(--muted)}

/* 登入 */
.auth{max-width:420px;margin:6vh auto 0}
.policy{max-height:46vh;overflow:auto;border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--surface2);font-size:14px}
.policy h3{font-size:14px;margin:12px 0 4px}.policy h3:first-child{margin-top:0}.policy p,.policy ul{margin:0 0 6px}

.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(env(safe-area-inset-bottom,0px) + 24px);background:var(--ink);color:var(--bg);padding:9px 14px;border-radius:8px;font-size:14px;z-index:60;opacity:0;transition:opacity .2s;pointer-events:none;max-width:calc(100vw - 32px)}
.toast.show{opacity:1}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}
.loading{padding:40px 0;text-align:center;color:var(--muted)}