:root{
  --bg:#f5f7fa;
  --surface:#fff;
  --ink:#1b2330;
  --muted:#6b7685;
  --line:#e3e8ef;
  --accent:#2563eb;
  --accent-dark:#1d4ed8;
  --ok:#16a34a;
  --warn:#d97706;
  --danger:#dc2626;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.1);
  --radius:10px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  min-height:100vh;
}
.hidden{display:none !important}
.muted{color:var(--muted)}
h1,h2{margin:0}
h1{font-size:22px;font-weight:600}
h2{font-size:18px;font-weight:600}

/* ---------- Buttons ---------- */
.btn{
  font:inherit;
  padding:9px 16px;
  border-radius:8px;
  border:1px solid var(--line);
  background:#fff;
  cursor:pointer;
  transition:all .15s ease;
}
.btn:hover{background:#f3f5f9}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.btn-primary:disabled{background:#a9bbe3;border-color:#a9bbe3;cursor:not-allowed}
.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn-ghost:hover{background:#eef1f6;color:var(--ink)}
.btn-danger{background:#fff;color:var(--danger);border-color:#fcd1d1}
.btn-danger:hover{background:#fff0f0}
.btn-block{width:100%;margin-top:4px}

/* ---------- Login ---------- */
.view-login{
  min-height:100vh;
  display:grid;
  place-items:center;
  background:linear-gradient(180deg,#eef3fb 0%,#f5f7fa 100%);
}
.login-box{
  background:var(--surface);
  padding:32px;
  border-radius:14px;
  box-shadow:var(--shadow);
  width:100%;
  max-width:360px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.login-box h1{text-align:center}
.login-box p{text-align:center;margin:-6px 0 6px}
.login-box .hint{font-size:13px;text-align:center;margin-top:2px}
.login-box label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}

/* ---------- Form controls (global) ---------- */
input[type=text],input[type=password],input[type=search],input[type=number],
input[type=file],select,textarea{
  width:100%;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:8px;
  background:#fff;
  font:inherit;
  color:var(--ink);
  transition:border-color .15s ease, box-shadow .15s ease;
}
input:focus,select:focus,textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(37,99,235,.15);
}
input[type=file]{padding:6px}

/* ---------- App shell ---------- */
.topbar{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:10px 24px;
  display:flex;
  align-items:center;
  gap:20px;
  position:sticky;
  top:0;
  z-index:5;
}
.brand{font-weight:700;font-size:17px}
.tabs{display:flex;gap:4px;margin-left:12px}
.tab{
  font:inherit;
  background:none;
  border:none;
  padding:8px 14px;
  border-radius:8px;
  cursor:pointer;
  color:var(--muted);
}
.tab:hover{background:#eef1f6;color:var(--ink)}
.tab.active{background:#e8efff;color:var(--accent);font-weight:600}
.userbar{margin-left:auto;display:flex;align-items:center;gap:10px}

.tab-panel{max-width:1200px;margin:0 auto;padding:24px}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:16px;flex-wrap:wrap;
}
.filters{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.filters label{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.filters input,.filters select{min-width:140px}
.form-actions{display:flex;gap:8px}

/* ---------- Orders table ---------- */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.orders-table{width:100%;border-collapse:collapse}
.orders-table th,.orders-table td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.orders-table th{background:#fafbfd;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.orders-table tbody tr{cursor:pointer}
.orders-table tbody tr:hover{background:#f7f9fc}
.orders-table tbody tr:last-child td{border-bottom:none}
.empty{padding:40px;text-align:center}

.status{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
}
.status-processing{background:#e8efff;color:var(--accent)}
.status-unpaid{background:#fff3db;color:var(--warn)}
.status-production{background:#fce7f3;color:#be185d}
.status-ready{background:#dcfce7;color:var(--ok)}

/* ---------- Order form ---------- */
.order-form{display:flex;flex-direction:column;gap:16px}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 18px 18px;
  margin:0;
}
.card legend{
  font-weight:600;
  font-size:13px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.05em;
  padding:0 6px;
  margin-left:-6px;
}
.card .row{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:12px;
  align-items:end;
}
.card .row label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
.card .row label.grow{grid-column:span 2}
.card > label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);margin-top:10px}

.checkbox-grid,.radio-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:8px 16px;
}
.checkbox-grid label,.radio-grid label,.checkbox-cell{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);
  cursor:pointer;
}
.checkbox-cell{align-self:center;padding-top:18px}
.color-row,.opt-sub{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}
.instructions-placeholder{padding:40px;text-align:center}

/* ---------- Rx table ---------- */
.rx-table{width:100%;border-collapse:separate;border-spacing:6px}
.rx-table th{font-size:12px;color:var(--muted);font-weight:500;text-align:center}
.rx-table .eye-label{text-align:right;font-weight:600;color:var(--ink);font-size:13px;width:120px}
.rx-table td input{text-align:center}
.copy-row{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--muted);cursor:pointer}

/* ---------- Stock grid ---------- */
.stock-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;overflow:auto}
.stock-grid{border-collapse:collapse;font-size:12px;margin:0 auto}
.stock-grid th,.stock-grid td{
  width:40px;height:28px;text-align:center;
  border:1px solid var(--line);
  padding:0;
}
.stock-grid th{background:#fafbfd;color:var(--muted);font-weight:600}
.stock-grid td.cell{
  cursor:pointer;
  transition:background .1s ease;
}
.stock-grid td.avail{background:#e6f7ec;color:#166534}
.stock-grid td.avail:hover{background:#bbe9ca}
.stock-grid td.none{background:#f5f5f5;color:#bbb;cursor:not-allowed}
.stock-grid td.selected{background:var(--accent) !important;color:#fff}

/* ---------- Modal ---------- */
.modal{
  position:fixed;inset:0;background:rgba(15,23,42,.55);
  display:flex;align-items:center;justify-content:center;
  z-index:100;padding:20px;
}
.modal-box{
  background:#fff;border-radius:12px;
  width:100%;max-width:760px;max-height:90vh;
  display:flex;flex-direction:column;
  box-shadow:0 20px 50px rgba(0,0,0,.2);
}
.modal-box > header{
  padding:16px 20px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
#modal-body{padding:20px;overflow:auto}
.modal-foot{
  padding:14px 20px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:12px;justify-content:space-between;
}
.modal-foot label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}

.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}
.detail-grid h3{margin:0 0 6px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.detail-grid dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:4px 10px;font-size:14px}
.detail-grid dt{color:var(--muted)}
.detail-grid dd{margin:0}
.rx-mini{width:100%;border-collapse:collapse;font-size:13px}
.rx-mini th,.rx-mini td{border:1px solid var(--line);padding:4px 8px;text-align:center}
.rx-mini th{background:#fafbfd;color:var(--muted);font-weight:500}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%);
  background:#1f2937;color:#fff;padding:10px 18px;border-radius:999px;
  font-size:14px;box-shadow:var(--shadow);z-index:200;
  animation:toast-in .2s ease;
}
@keyframes toast-in{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------- Print ---------- */
@media print{
  body{background:#fff}
  .topbar,.filters,.form-actions,.tabs,.userbar,#toast,
  .modal-foot,.modal-box > header > div{display:none !important}
  .modal{position:static;background:none;padding:0}
  .modal-box{box-shadow:none;max-width:100%;max-height:none}
  .modal-box > header{border-bottom:1px solid #000}
}

/* ---------- Small screens ---------- */
@media (max-width:720px){
  .topbar{flex-wrap:wrap;gap:8px;padding:10px 14px}
  .tabs{order:3;width:100%;overflow:auto}
  .tab-panel{padding:16px}
  .detail-grid{grid-template-columns:1fr}
  .rx-table .eye-label{width:auto;font-size:12px}
}