*{box-sizing:border-box}
:root{--bg:#07111d;--panel:#0c1927;--panel2:#102235;--line:#20364a;--text:#ecf7ff;--muted:#8fa7ba;--a:#59d4ff;--b:#72e4bf;--danger:#ff7272}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",Arial,sans-serif;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}
.hidden{display:none!important}
.auth{min-height:100vh;display:grid;place-items:center;padding:22px;background:radial-gradient(circle at 50% 10%,#123451 0,#07111d 48%,#030910 100%)}
.auth-card{width:min(440px,100%);background:#0a1827ed;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 30px 90px #0009;backdrop-filter:blur(12px)}
.logo{width:54px;height:54px;margin:0 auto 16px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--a),var(--b));color:#06202a;font-size:24px;font-weight:900}
h1{margin:0 0 6px;text-align:center;font-size:25px}h2{margin:0 0 16px;font-size:18px}.muted{color:var(--muted)}
.auth-card>.muted{text-align:center;margin-bottom:22px}
label{display:block;color:#c4d4df;font-size:13px;margin:13px 0 7px}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;background:#081522;color:#fff;padding:11px 12px;outline:0}
input:focus,select:focus,textarea:focus{border-color:#4fc3eb;box-shadow:0 0 0 3px #4fc3eb18}
button,.btn{border:0;border-radius:9px;background:linear-gradient(90deg,var(--a),var(--b));color:#05212a;font-weight:800;padding:11px 15px;cursor:pointer;text-decoration:none}
.auth-card button{width:100%;margin-top:18px;height:46px}
.alert{padding:11px 13px;margin:12px 0;border-radius:9px;font-size:13px}.alert.error{background:#ff707014;border:1px solid #ff707048;color:#ffb0b0}.alert.success{background:#72e4bf14;border:1px solid #72e4bf48;color:#b8f8e2}
.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:#081522;border-right:1px solid var(--line);padding:18px 14px;z-index:3}
.brand{font-weight:900;margin:3px 8px 25px}.brand span{display:inline-grid;place-items:center;width:31px;height:31px;border-radius:9px;background:linear-gradient(135deg,var(--a),var(--b));color:#05222d;margin-right:8px}
.nav button{display:block;width:100%;text-align:left;background:none;color:#adc0ce;font-weight:600;padding:12px 13px;margin:3px 0}.nav button:hover,.nav button.active{background:#10263a;color:#fff}
.main{margin-left:230px;min-height:100vh;padding:24px}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.user{font-size:12px;color:#a9bdcb;background:#102236;border:1px solid var(--line);border-radius:999px;padding:8px 11px}
.grid{display:grid;gap:16px}.stats{grid-template-columns:repeat(4,1fr);margin-bottom:16px}.two{grid-template-columns:.8fr 1.2fr}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.kpi{font-size:31px;font-weight:900}.klabel{font-size:13px;color:var(--muted);margin-top:4px}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:11px 9px;text-align:left;border-bottom:1px solid #1b3043;white-space:nowrap}th{color:#8ea6b8;font-weight:600}td{color:#d7e3eb}
.badge{display:inline-block;border-radius:999px;background:#12314a;color:#9cddfb;padding:4px 8px;font-size:11px}
.row-actions{display:flex;gap:10px}.link{background:none!important;color:#6ed7ff!important;padding:0!important;font-weight:600}.danger{color:var(--danger)!important}
.search{display:flex;gap:8px;flex:1;max-width:480px}.search button{min-width:72px}.small{padding:8px 10px;font-size:12px}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.secondary{background:#172a3d;color:#d9e5ed;border:1px solid #294158}
.modal{position:fixed;inset:0;background:#0009;display:grid;place-items:center;padding:20px;z-index:20}.modal-card{width:min(560px,100%);max-height:90vh;overflow:auto;background:#0d1c2b;border:1px solid var(--line);border-radius:15px;padding:20px;box-shadow:0 25px 80px #000b}
.modal-head{display:flex;justify-content:space-between;align-items:center}.close{background:none;color:#9eb2c2;padding:5px 8px;font-size:20px}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.two{grid-template-columns:1fr}}
@media(max-width:720px){.sidebar{position:static;width:auto;display:flex;overflow:auto;border-right:0;border-bottom:1px solid var(--line);align-items:center}.brand{margin:0 12px 0 0;white-space:nowrap}.nav{display:flex}.nav button{white-space:nowrap}.main{margin-left:0;padding:16px}.top{align-items:flex-start}.card-head{align-items:stretch;flex-direction:column}.search{max-width:none}}
@media(max-width:480px){.stats{grid-template-columns:1fr}.user{display:none}.auth-card{padding:24px 19px}}