/* ============================================================
   নাহিদ ইলেকট্রনিক্স — v2 design
   Dark navy #102a43 + orange accent #e67e22, Hind Siliguri
   (Bengali-friendly). Same file is used in BOTH
   php-app/public/assets/app.css (live) and php-app/assets/app.css.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&display=swap');

:root{
  --navy:#102a43; --navy-2:#12395d; --blue:#1769e0; --cyan:#16b8d4;
  --orange:#e67e22; --orange-dark:#cf6d0e;
  --bg:#f2f6fb; --card:#ffffff; --ink:#182b49; --muted:#66788a;
  --line:#dfe8f1; --green:#087f5b; --red:#c92a2a; --amber:#b7791f;
  --radius:14px; --shadow:0 2px 14px rgba(37,56,88,.08);
}
*{font-family:'Hind Siliguri',system-ui,-apple-system,'Segoe UI',sans-serif;box-sizing:border-box}
html{scroll-behavior:smooth}
body{color:var(--ink);background:var(--bg);margin:0;font-size:15px;line-height:1.55}
a{color:var(--blue)}
img{max-width:100%}

/* ---------- shell / sidebar ---------- */
.app-shell{display:flex;min-height:100vh;background:linear-gradient(135deg,#f5f8fc 0%,#edf3fa 100%)}
.sidebar{width:255px;background:linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 58%,#0c2440 100%);padding:22px 14px;display:flex;flex-direction:column;box-shadow:5px 0 24px rgba(16,42,67,.12);position:fixed;inset:0 auto 0 0;height:100vh;overflow-y:auto;overscroll-behavior:contain;z-index:10}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-weight:700;border-bottom:1px solid rgba(255,255,255,.14);padding:0 8px 20px;margin-bottom:18px;font-size:17px}
.brand img{width:46px;height:46px;object-fit:contain;background:#fff;border-radius:12px;padding:3px;flex:0 0 46px}
.brand small{display:block;color:#a9c5df;font-size:11px;font-weight:400}
.sidebar nav{display:flex;flex-direction:column;gap:5px}
.sidebar nav a,.logout{padding:11px 13px;border-radius:10px;color:#c6d8eb;text-decoration:none;transition:.2s;font-size:15px;display:flex;align-items:center;gap:4px}
.sidebar nav a:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(3px)}
.sidebar nav a.active{background:linear-gradient(90deg,#2483ee,var(--cyan));color:#fff;font-weight:600;box-shadow:0 7px 18px rgba(11,31,54,.24)}
.sidebar i{width:25px;display:inline-block;text-align:center}
.logout{margin-top:auto;color:#ffb5bd;border-top:1px solid rgba(255,255,255,.14)}
.logout:hover{background:rgba(220,53,69,.18);color:#fff}
.main{flex:1;min-width:0;margin-left:255px;padding:20px 28px 48px}
.topbar{height:78px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e4e8ee;margin-bottom:24px}

/* ---------- cards, KPI, tables ---------- */
.card{border:0;box-shadow:var(--shadow);border-radius:var(--radius);background:var(--card)}
.kpi{padding:20px 22px;border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);border-left:4px solid var(--blue)}
.kpi .stat-number{font-size:28px;font-weight:700;line-height:1.2;margin-top:4px}
.table{margin-bottom:0}
.table thead th{font-size:13px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);border-bottom:2px solid var(--line);white-space:nowrap}
.table tbody tr:hover{background:#f7fafd}
.table td,.table th{vertical-align:middle}
.table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch}
.badge{font-weight:600}

/* ---------- buttons & forms ---------- */
.btn{border-radius:9px;font-weight:600;padding:9px 18px}
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover{background:#1258bd;border-color:#1258bd}
.btn-success{background:var(--orange);border-color:var(--orange)}
.btn-success:hover{background:var(--orange-dark);border-color:var(--orange-dark)}
.btn-outline-primary{color:var(--blue);border-color:var(--blue)}
.btn-outline-primary:hover{background:var(--blue);color:#fff}
.form-control,.form-select{border-radius:9px;padding:9px 12px;border:1px solid #cbd8e5;font-size:15px}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,105,224,.15)}
label.form-label{font-weight:600;color:#33475e}
.modal-content{border:0;border-radius:16px;box-shadow:0 18px 50px rgba(16,42,67,.25)}
.modal-header{border-bottom:1px solid var(--line)}
.alert{border-radius:10px}

/* ---------- login ---------- */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#0e5a8a 100%)}
.login-card{background:#fff;border-radius:18px;box-shadow:0 24px 60px rgba(0,0,0,.3);padding:34px 30px;width:100%;max-width:400px;text-align:center}
.login-card img{width:96px;height:96px;object-fit:contain;margin-bottom:8px}
.login-card h3{color:var(--navy);font-weight:700}
.login-card label{display:block;text-align:left;font-weight:600;color:#33475e;margin-bottom:4px}
.login-card .form-control{margin-bottom:14px}

/* ---------- POS ---------- */
#cart input{ min-width:64px }
#customerResults,#productResults{max-height:280px;overflow-y:auto;box-shadow:0 10px 30px rgba(16,42,67,.18);border-radius:10px}
#customerResults .list-group-item,#productResults .list-group-item{cursor:pointer}

/* ---------- invoice / statement print ---------- */
@media print{
  body{background:#fff}
  .sidebar,.main .btn,.actions,.no-print{display:none !important}
  .main{margin:0;padding:0}
  .card{box-shadow:none;border:1px solid #ddd}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .sidebar{width:78px;padding:16px 8px}
  .sidebar nav a,.logout{justify-content:center;padding:11px 6px}
  .sidebar nav a span,.brand span,.sidebar i + *{display:none}
  .brand{justify-content:center;padding:0 0 14px}
  .brand img{width:40px;height:40px}
  .main{margin-left:78px;padding:16px 14px 40px}
  .kpi .stat-number{font-size:22px}
}
@media (max-width:600px){
  body{font-size:14px}
  .main{margin-left:78px;padding:14px 12px 40px}
  .sidebar nav a,.logout{font-size:0;gap:0}
  .sidebar nav a i{font-size:19px;width:auto}
  .kpi{padding:14px}
  .btn{padding:8px 12px}
  .table{font-size:13px}
  .table th,.table td{padding:7px 6px}
  #cart input{min-width:48px;padding:7px 4px;font-size:13px}
}