/* ============================================================
   EMR KORUMA STOK YONETIM — UI stylesheet (bundled, no CDN)
   ============================================================ */
:root{
  --bg:#f4f6fb; --surface:#ffffff; --surface-2:#f8fafc;
  --text:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --primary:#1e40af; --primary-600:#1d4ed8; --primary-700:#1e3a8a;
  --accent:#0ea5e9; --success:#16a34a; --danger:#dc2626;
  --warning:#d97706; --info:#0891b2;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 3px rgba(16,24,40,.08),0 1px 2px rgba(16,24,40,.04);
  --shadow-lg:0 10px 25px rgba(16,24,40,.10);
  --sidebar-w:248px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--primary-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .5rem;font-weight:650;color:#111827}
h1{font-size:1.4rem}h2{font-size:1.15rem}h3{font-size:1rem}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:#0f172a;color:#cbd5e1;position:fixed;inset:0 auto 0 0;
  display:flex;flex-direction:column;z-index:40;transition:transform .2s ease}
.main{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-width:0}
.content{padding:1.25rem;flex:1}
.footer{padding:.75rem 1.25rem;color:var(--muted);font-size:.8rem;border-top:1px solid var(--line)}

/* Brand */
.brand{display:flex;align-items:center;gap:.6rem;padding:1rem 1rem;border-bottom:1px solid rgba(255,255,255,.06)}
.brand-mark{background:linear-gradient(135deg,var(--primary-600),var(--accent));color:#fff;font-weight:800;
  padding:.35rem .5rem;border-radius:8px;letter-spacing:.5px;font-size:.85rem}
.brand-text{font-size:.82rem;font-weight:600;color:#e2e8f0;line-height:1.15}

/* Menu */
.menu{padding:.5rem;overflow-y:auto;flex:1}
.menu-section{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:#64748b;padding:.9rem .75rem .35rem}
.menu-item{display:flex;align-items:center;gap:.6rem;padding:.55rem .75rem;border-radius:8px;color:#cbd5e1;
  font-weight:500;font-size:.86rem}
.menu-item:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.menu-item.active{background:var(--primary-600);color:#fff}
.menu-item .ico{width:1.25rem;text-align:center;font-size:.95rem}

/* Topbar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:1rem;background:var(--surface);
  border-bottom:1px solid var(--line);padding:.6rem 1rem;box-shadow:var(--shadow)}
.topbar-title{font-weight:650;font-size:1rem}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:.75rem}
.icon-btn{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:.4rem .55rem;
  cursor:pointer;font-size:1rem;color:var(--text);line-height:1}
.icon-btn:hover{background:#eef2ff}
.inline{display:inline}
.lang-switch a{display:inline-block;padding:.2rem .45rem;border-radius:6px;color:var(--muted);font-weight:600;font-size:.8rem}
.lang-switch a.on{background:var(--primary);color:#fff}
.user-menu{display:flex;flex-direction:column;line-height:1.1;text-align:right}
.user-name{font-weight:600;font-size:.85rem}
.user-role{font-size:.72rem;color:var(--muted)}

/* Cards & grid */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:1.1rem;margin-bottom:1.1rem}
.card-header{display:flex;align-items:center;justify-content:space-between;margin:-.25rem 0 1rem}
.card-title{font-weight:650;font-size:1.02rem}
.grid{display:grid;gap:1rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* KPI cards */
.kpi{display:flex;flex-direction:column;gap:.35rem}
.kpi .label{color:var(--muted);font-size:.8rem;font-weight:500}
.kpi .value{font-size:1.5rem;font-weight:750;color:#0f172a}
.kpi .sub{font-size:.78rem;color:var(--muted)}
.kpi.accent{border-left:4px solid var(--primary)}
.kpi.green{border-left:4px solid var(--success)}
.kpi.amber{border-left:4px solid var(--warning)}
.kpi.red{border-left:4px solid var(--danger)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.45rem;border:1px solid transparent;border-radius:8px;
  padding:.5rem .9rem;font-weight:600;font-size:.85rem;cursor:pointer;background:var(--surface-2);
  color:var(--text);transition:.15s;line-height:1.2;text-decoration:none}
.btn:hover{text-decoration:none;filter:brightness(.98)}
.btn-primary{background:var(--primary-600);color:#fff;border-color:var(--primary-600)}
.btn-primary:hover{background:var(--primary-700)}
.btn-success{background:var(--success);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-ghost{background:transparent;border-color:var(--line)}
.btn-sm{padding:.35rem .6rem;font-size:.78rem}
.btn-block{width:100%;justify-content:center}
.btn[disabled]{opacity:.55;cursor:not-allowed}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table.table{width:100%;border-collapse:collapse;font-size:.85rem}
.table th,.table td{padding:.6rem .75rem;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.table thead th{background:var(--surface-2);color:#374151;font-weight:650;font-size:.76rem;
  text-transform:uppercase;letter-spacing:.03em;position:sticky;top:0}
.table tbody tr:hover{background:#f9fafb}
.table .num{text-align:right;font-variant-numeric:tabular-nums}
.table .center{text-align:center}

/* Forms */
.form-row{display:grid;gap:1rem;grid-template-columns:repeat(2,1fr)}
.form-row-3{grid-template-columns:repeat(3,1fr)}
.form-group{margin-bottom:1rem;display:flex;flex-direction:column;gap:.3rem}
.form-group label{font-weight:600;font-size:.8rem;color:#374151}
.form-group .req{color:var(--danger)}
.input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;
  font:inherit;font-size:.86rem;background:var(--surface);color:var(--text)}
.input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-600);
  box-shadow:0 0 0 3px rgba(29,78,216,.12)}
textarea{min-height:90px;resize:vertical}
.field-error{color:var(--danger);font-size:.76rem}
.help{color:var(--muted);font-size:.76rem}
.checkbox{display:flex;align-items:center;gap:.5rem;font-size:.85rem}
.checkbox input{width:auto}

/* Badges */
.badge{display:inline-block;padding:.18rem .5rem;border-radius:999px;font-size:.72rem;font-weight:650}
.badge-green{background:#dcfce7;color:#166534}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-amber{background:#fef3c7;color:#92400e}
.badge-gray{background:#e5e7eb;color:#374151}
.badge-blue{background:#dbeafe;color:#1e40af}

/* Alerts */
.alert{padding:.7rem 1rem;border-radius:8px;margin-bottom:1rem;border:1px solid transparent;font-size:.86rem}
.alert-success{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.alert-error,.alert-danger{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.alert-warning{background:#fffbeb;border-color:#fde68a;color:#92400e}

/* Page header */
.page-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}
.page-head .actions{display:flex;gap:.5rem;flex-wrap:wrap}
.toolbar{display:flex;gap:.5rem;flex-wrap:wrap;align-items:end;margin-bottom:1rem}

/* Guest / login */
body.guest{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.guest-wrap{width:100%;max-width:420px;padding:1rem}
.guest-card{background:var(--surface);border-radius:16px;box-shadow:var(--shadow-lg);padding:1.75rem}
.guest-brand{display:flex;align-items:center;gap:.75rem;margin-bottom:1.25rem}
.guest-title{font-weight:750;font-size:1.05rem;color:#0f172a}
.guest-sub{color:var(--muted);font-size:.8rem}
.guest-lang{text-align:center;margin-top:1rem;color:var(--muted);font-size:.82rem}
.guest-lang a.on{font-weight:700;color:var(--primary)}

/* Error page */
.error-page{text-align:center;padding:3rem 1rem}
.error-code{font-size:3.5rem;font-weight:800;color:var(--primary)}

/* Pagination */
.pagination{display:flex;gap:.3rem;margin-top:1rem;flex-wrap:wrap}
.pagination a,.pagination span{padding:.4rem .7rem;border:1px solid var(--line);border-radius:8px;
  background:var(--surface);font-size:.82rem}
.pagination .current{background:var(--primary-600);color:#fff;border-color:var(--primary-600)}

/* Misc */
.text-muted{color:var(--muted)}
.text-success{color:var(--success)}
.text-danger{color:var(--danger)}
.text-right{text-align:right}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.flex{display:flex}.gap{gap:.5rem}.items-center{align-items:center}.between{justify-content:space-between}
.backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:35}

/* Responsive */
@media (max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .form-row,.form-row-3{grid-template-columns:1fr}
  .backdrop.show{display:block}
  .user-menu{display:none}
}

/* PWA install button + safe-area (notch) support for standalone mode */
.pwa-install-btn{position:fixed;right:16px;bottom:16px;z-index:60;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--primary-600),var(--accent));color:#fff;font-weight:700;font-size:.85rem;
  padding:.6rem 1rem;border-radius:999px;box-shadow:0 6px 18px rgba(29,78,216,.4)}
.pwa-install-btn:hover{filter:brightness(1.05)}
@supports(padding:max(0px)){
  .topbar{padding-top:max(.6rem,env(safe-area-inset-top))}
  .sidebar{padding-bottom:env(safe-area-inset-bottom)}
  .content{padding-left:max(1.25rem,env(safe-area-inset-left));padding-right:max(1.25rem,env(safe-area-inset-right))}
}