:root{
  --ts-blue:#01B9FF; --ts-blue-dark:#0499d4; --ts-gray:#575757;
  --sidebar:#0d1b2a; --sidebar-hover:#16304a;
  --ink:#1f2a37; --ink-soft:#6b7684;
  --line:#e6eaef; --line-soft:#eef1f5;
  --bg:#f4f6f9; --card:#fff;
  --radius:10px; --shadow:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.app{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:230px;background:var(--sidebar);color:#c7d2de;display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;z-index:50}
.brand{display:flex;align-items:center;gap:10px;padding:18px}
.brand .mark{width:34px;height:34px;border-radius:9px;flex-shrink:0;background:#fff;position:relative}
.brand .mark::before{content:"";position:absolute;width:15px;height:15px;border-radius:5px;background:var(--ts-gray);top:6px;left:6px}
.brand .mark::after{content:"";position:absolute;width:15px;height:15px;border-radius:5px;background:var(--ts-blue);bottom:6px;right:6px}
.brand .name{font-weight:700;font-size:16px;letter-spacing:.3px;color:#fff}
.brand .name b{color:var(--ts-blue)}
.brand .sub{font-size:10px;color:#7f93a6;letter-spacing:.5px;display:block;margin-top:1px}
.nav-group{padding:2px 12px}
.nav-label{font-size:10px;letter-spacing:1.4px;text-transform:uppercase;color:#5f7488;padding:14px 10px 6px;font-weight:600}
.nav-item{display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:8px;cursor:pointer;color:#b7c4d1;font-weight:500;font-size:13.5px;transition:.15s;margin-bottom:1px}
.nav-item:hover{background:var(--sidebar-hover);color:#fff}
.nav-item.active{background:var(--ts-blue);color:#fff;box-shadow:0 2px 8px rgba(1,185,255,.35)}
.nav-item svg{width:17px;height:17px;flex-shrink:0}
.overlay{display:none;position:fixed;inset:0;background:rgba(13,27,42,.5);z-index:40}
.overlay.show{display:block}

/* Main */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:14px;padding:0 20px;position:sticky;top:0;z-index:20}
.hamburger{color:var(--ink-soft);cursor:pointer;display:none}
.crumb{font-weight:600}.crumb span{color:var(--ink-soft);font-weight:500}
.search{flex:1;max-width:440px;position:relative;margin-left:6px}
.search input[type=text]{width:100%;height:36px;border:1px solid var(--line);border-radius:8px;padding:0 14px 0 36px;font-size:13px;background:#f8fafc;font-family:inherit;color:var(--ink)}
.search input:focus{outline:none;border-color:var(--ts-blue);background:#fff;box-shadow:0 0 0 3px rgba(1,185,255,.12)}
.search svg{position:absolute;left:11px;top:10px;width:16px;height:16px;color:var(--ink-soft)}
.top-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.live{display:flex;align-items:center;gap:6px;font-size:12px;color:#12a150;background:#e9f8ef;padding:5px 10px;border-radius:20px;font-weight:600}
.live .dot{width:7px;height:7px;border-radius:50%;background:#12a150;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.avatar{display:flex;align-items:center;gap:9px;padding-left:6px;border-left:1px solid var(--line);cursor:pointer}
.avatar .circle{width:32px;height:32px;border-radius:50%;background:var(--ts-blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px}
.avatar .who b{font-size:13px;font-weight:600}.avatar .who span{font-size:11px;color:var(--ink-soft);display:block}

/* Content */
.content{padding:22px 26px 60px;max-width:1080px;width:100%;margin:0 auto}
.page-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.back{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--ink-soft)}
.back:hover{background:#f8fafc;color:var(--ink)}
.page-title{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:700}
.page-title svg{color:var(--ts-blue)}
.head-actions{margin-left:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{height:38px;padding:0 18px;border-radius:8px;font-family:inherit;font-size:13.5px;font-weight:600;cursor:pointer;border:1px solid transparent;display:inline-flex;align-items:center;gap:7px;transition:.15s}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-soft)}
.btn-ghost:hover{background:#f8fafc;color:var(--ink)}
.btn-blue{background:var(--ts-blue);color:#fff}
.btn-blue:hover{background:var(--ts-blue-dark)}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}
.card-head{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;border-bottom:1px solid var(--line-soft)}
.card-head h3{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}
.card-head h3 svg{color:var(--ink-soft)}
.card-body{padding:18px}

.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{font-size:12.5px;font-weight:600;display:block;margin-bottom:7px}
.field label .req{color:#ef4444}
.select{position:relative}
.select select,.inp{width:100%;height:42px;border:1px solid var(--line);border-radius:8px;padding:0 12px;font-size:13.5px;font-family:inherit;color:var(--ink);background:#fbfcfe}
.select select{appearance:none;cursor:pointer;padding-right:34px}
.select::after{content:"";position:absolute;right:14px;top:17px;width:8px;height:8px;border-right:2px solid var(--ink-soft);border-bottom:2px solid var(--ink-soft);transform:rotate(45deg);pointer-events:none}
.select.sm select{height:38px}
.select select:focus,.inp:focus{outline:none;border-color:var(--ts-blue);background:#fff;box-shadow:0 0 0 3px rgba(1,185,255,.12)}
textarea.inp{height:auto;min-height:72px;padding:11px 12px;resize:vertical;line-height:1.5}

/* Line items */
.li-head,.li-row{display:grid;grid-template-columns:2.4fr 1.6fr .6fr .8fr .7fr .6fr;gap:12px}
.li-head{padding:0 4px 10px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-soft)}
.li-row{align-items:center;padding:4px}
.li-row .inp{height:40px}
.tax-cell{text-align:center}
.tax{font-size:13px;color:var(--ink-soft);font-weight:500}
.consumable-toggle{display:flex;align-items:center;gap:7px;color:var(--ts-blue);font-size:12.5px;font-weight:600;cursor:pointer;padding:12px 4px 8px;user-select:none}
.consumable-toggle svg{transition:transform .2s}
.consumable-toggle.open svg{transform:rotate(90deg)}
.consumable-box{background:#f7fafc;border:1px dashed #cdd8e3;border-radius:9px;padding:14px 16px;margin:4px 4px 0}
.consumable-box .cb-head{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--ink-soft);margin-bottom:10px}
.consumable-box .cb-head .tag{background:#fff3e0;color:#b06f00;font-size:10px;font-weight:600;padding:2px 8px;border-radius:20px}
.cb-item{display:flex;justify-content:space-between;font-size:12.5px;color:#44515f;padding:4px 0;border-bottom:1px dashed #e3e9ef}
.cb-item:last-of-type{border-bottom:none}
.cb-item .q{color:var(--ink-soft);font-variant-numeric:tabular-nums}
.cb-total{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-soft);margin-top:10px;padding-top:9px;border-top:1px solid #e3e9ef}
.cb-total b{color:var(--ink)}.cb-total em{font-style:normal;color:#9aa6b2}
.add-line{display:flex;align-items:center;gap:6px;color:var(--ts-blue);font-size:13px;font-weight:600;cursor:pointer}
.li-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft);flex-wrap:wrap;gap:10px}
.li-foot .subtotal{font-size:12.5px;color:var(--ink-soft)}
.li-foot .grand{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-soft);text-align:right}
.li-foot .grand b{display:block;font-size:20px;color:var(--ink);letter-spacing:0;margin-top:2px}

/* Stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;display:flex;align-items:center;gap:14px}
.stat-ic{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-ic svg{width:20px;height:20px;color:#fff}
.stat-ic.blue{background:var(--ts-blue)}.stat-ic.navy{background:var(--sidebar)}
.stat-ic.green{background:#12a150}.stat-ic.amber{background:#e08e0b}
.stat-num{font-size:19px;font-weight:700;display:block;line-height:1.1}
.stat-lbl{font-size:12px;color:var(--ink-soft)}

/* Tables */
.table-wrap{overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:13.5px}
.table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-soft);font-weight:600;padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
.table td{padding:13px 16px;border-bottom:1px solid var(--line-soft);white-space:nowrap}
.table tr:last-child td{border-bottom:none}
.table .r{text-align:right}
.table .empty{text-align:center;color:var(--ink-soft);padding:30px}
.muted{color:var(--ink-soft)}
.nowrap{white-space:nowrap}
.link{color:var(--ts-blue);font-weight:600;margin-left:10px}
.link:first-child{margin-left:0}
.link.danger{color:#ef4444}
.badge{font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;text-transform:capitalize}
.badge.draft{background:#eef1f5;color:#5b6774}
.badge.sent{background:#eef7ff;color:#0479ab}
.badge.accepted{background:#e9f8ef;color:#12a150}
.badge.rejected{background:#fdecec;color:#d33}

.cols{display:grid;grid-template-columns:340px 1fr;gap:16px;align-items:start}
.grow{min-width:0}
.kv-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.kv-l{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-soft);display:block;margin-bottom:3px}
.kv-v{font-weight:600}
.totals{max-width:320px;margin-left:auto}
.totals div{display:flex;justify-content:space-between;padding:7px 0;font-size:13.5px}
.totals .grand-row{border-top:1px solid var(--line);margin-top:6px;padding-top:12px;font-size:16px;font-weight:700}
.inline-form{display:inline}

.alert{background:#e9f8ef;color:#12854a;border:1px solid #bfe9cf;border-radius:9px;padding:11px 14px;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:9px;margin-bottom:18px}
.alert svg{color:#12a150}

.toast{position:fixed;bottom:24px;right:24px;background:var(--sidebar);color:#fff;padding:13px 18px;border-radius:9px;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:9px;box-shadow:0 8px 24px rgba(0,0,0,.25);transform:translateY(160%);transition:transform .35s cubic-bezier(.2,.8,.2,1);z-index:100}
.toast.show{transform:translateY(0)}
.toast svg{color:var(--ts-blue)}
code{background:#eef1f5;padding:1px 6px;border-radius:5px;font-size:12.5px}

/* ---------- Auth / Login ---------- */
.auth-body{background:linear-gradient(150deg,#0d1b2a 0%,#123049 55%,#0d1b2a 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-wrap{width:100%;max-width:400px}
.auth-card{background:#fff;border-radius:16px;padding:34px 32px 28px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.auth-brand{display:flex;align-items:center;gap:11px;margin-bottom:22px}
.auth-brand .mark{width:34px;height:34px;border-radius:9px;position:relative;background:#eef2f6}
.auth-brand .mark::before{content:"";position:absolute;width:15px;height:15px;border-radius:5px;background:var(--ts-gray);top:6px;left:6px}
.auth-brand .mark::after{content:"";position:absolute;width:15px;height:15px;border-radius:5px;background:var(--ts-blue);bottom:6px;right:6px}
.auth-brand .name{font-weight:700;font-size:18px;letter-spacing:.3px;color:var(--sidebar)}
.auth-brand .name b{color:var(--ts-blue)}
.auth-title{font-size:21px;font-weight:700;margin-bottom:5px}
.auth-sub{font-size:13.5px;color:var(--ink-soft);margin-bottom:22px}
.auth-form .field{margin-bottom:16px}
.auth-error{display:flex;align-items:center;gap:8px;background:#fdecec;color:#c53030;border:1px solid #f6c9c9;border-radius:9px;padding:11px 13px;font-size:13px;font-weight:500;margin-bottom:18px}
.pw-wrap{position:relative}
.pw-wrap .inp{padding-right:44px}
.pw-toggle{position:absolute;right:6px;top:6px;width:32px;height:30px;border:none;background:none;color:var(--ink-soft);cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:6px}
.pw-toggle:hover{background:#f1f4f7;color:var(--ink)}
.pw-toggle.on{color:var(--ts-blue)}
.auth-submit{width:100%;justify-content:center;height:44px;margin-top:4px;font-size:14.5px}
.auth-hint{margin-top:22px;padding:13px 15px;background:#f4f8fb;border:1px dashed #cfdce8;border-radius:10px;font-size:12.5px;display:flex;flex-direction:column;gap:2px;color:var(--ink-soft)}
.auth-hint b{color:var(--ink);font-size:11px;text-transform:uppercase;letter-spacing:.6px;margin-bottom:3px}
.auth-hint span{font-family:ui-monospace,Menlo,monospace;color:#2c3a48}
.auth-foot{text-align:center;color:#8ba0b5;font-size:12px;margin-top:20px}

/* User menu dropdown */
.avatar{position:relative}
.avatar .caret{color:var(--ink-soft);transition:transform .18s}
.avatar.open .caret{transform:rotate(180deg)}
.user-menu{position:absolute;right:0;top:calc(100% + 10px);width:230px;background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:0 12px 34px rgba(16,24,40,.16);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.16s;z-index:60}
.avatar.open .user-menu{opacity:1;visibility:visible;transform:translateY(0)}
.um-head{padding:11px 12px 12px;border-bottom:1px solid var(--line-soft);margin-bottom:5px}
.um-head b{display:block;font-size:13.5px}
.um-head span{font-size:12px;color:var(--ink-soft)}
.um-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;font-size:13.5px;font-weight:500;color:var(--ink);cursor:pointer}
.um-item:hover{background:#f4f7fa}
.um-item svg{color:var(--ink-soft)}
.um-item.danger{color:#e0342b}
.um-item.danger svg{color:#e0342b}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .sidebar{position:fixed;left:-240px;transition:left .25s}
  .sidebar.open{left:0}
  .hamburger{display:flex}
  .avatar .who{display:none}
  .field-grid{grid-template-columns:1fr}
  .cols{grid-template-columns:1fr}
  .li-head{display:none}
  .li-row{grid-template-columns:1fr 1fr;gap:10px}
  .li-row>div{min-width:0}
  .tax-cell{grid-column:span 2;text-align:left}
}
@media(max-width:520px){
  .content{padding:16px 14px 50px}
  .stat-grid{grid-template-columns:1fr}
  .li-row{grid-template-columns:1fr}
  .live span:not(.dot){display:none}
  .search{max-width:none}
  .kv-grid{grid-template-columns:1fr}
  .head-actions .btn{flex:1;justify-content:center}
  .toast{left:14px;right:14px;bottom:14px}
}

/* Print (quote view) */
@media print{
  .sidebar,.topbar,.page-head .head-actions,.overlay,.toast{display:none!important}
  .content{max-width:none;padding:0}
  .card{box-shadow:none;border-color:#ddd}
}