/* =========================================================================
   Solar ERP — Professional Design System
   ========================================================================= */

:root{
  /* Brand */
  --navy-950:#0b1526;
  --navy-900:#0f1c33;
  --navy-800:#152341;
  --navy-700:#1c2d52;
  --orange-500:#f7941d;
  --orange-600:#e07f0a;
  --orange-50:#fff4e5;

  /* Neutral */
  --bg:#f5f7fa;
  --panel:#ffffff;
  --border:#e6e9ee;
  --border-strong:#d8dde5;
  --text:#1a2233;
  --text-soft:#5b6577;
  --muted:#8b93a3;

  /* Semantic */
  --success:#0ea968;
  --success-bg:#e7f8f0;
  --danger:#e0392f;
  --danger-bg:#fdeceb;
  --warning:#e0980f;
  --warning-bg:#fff4e0;
  --info:#2e6fe0;
  --info-bg:#eaf1ff;

  --radius-sm:6px;
  --radius:10px;
  --radius-lg:14px;
  --shadow-sm:0 1px 2px rgba(15,28,51,.06);
  --shadow:0 4px 16px rgba(15,28,51,.08);
  --shadow-lg:0 12px 32px rgba(15,28,51,.14);
  --sidebar-w:250px;
}

*{box-sizing:border-box}
html{-webkit-font-smoothing:antialiased}
body{
  margin:0;
  font-family:'Inter','Segoe UI',Tahoma,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
a{color:var(--orange-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;color:var(--navy-900)}
code{background:#eef1f5;padding:1px 6px;border-radius:4px;font-size:12px}

/* ---------------------------------------------------------------------
   Shell / layout
   --------------------------------------------------------------------- */
.app-shell{display:flex;min-height:100vh}

.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:linear-gradient(180deg,var(--navy-950) 0%,var(--navy-900) 100%);
  color:#aeb9cf;
  display:flex;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
}
.sidebar-brand{
  display:flex;align-items:center;gap:10px;
  padding:22px 20px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.sidebar-brand .logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--orange-500),#ffb347);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:#1a1200;font-size:15px;flex-shrink:0;
  box-shadow:0 3px 10px rgba(247,148,29,.35);
}
.sidebar-brand .brand-text{color:#fff;font-weight:700;font-size:15px;line-height:1.2}
.sidebar-brand .brand-text small{display:block;color:#7f8cab;font-weight:400;font-size:11px;margin-top:2px}

.sidebar-section-label{
  padding:16px 20px 6px;
  font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:#5c6a8a;
}
.sidebar ul{list-style:none;margin:0;padding:4px 10px}
.sidebar li a{
  display:flex;align-items:center;gap:11px;
  padding:9px 12px;margin-bottom:2px;
  border-radius:8px;color:#aeb9cf;font-size:13.5px;font-weight:500;
  transition:background .12s ease,color .12s ease;
}
.sidebar li a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.sidebar li.active a{background:rgba(247,148,29,.16);color:#ffb763;font-weight:600}
.sidebar li a .nav-icon{width:17px;height:17px;flex-shrink:0;opacity:.9}
.sidebar-footer{margin-top:auto;padding:16px 20px;font-size:11px;color:#4d5a78;border-top:1px solid rgba(255,255,255,.06)}

.app-main{flex:1;display:flex;flex-direction:column;min-width:0}

.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 28px;background:var(--panel);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:5;
}
.topbar h1{font-size:19px;margin:0}
.topbar-breadcrumb{font-size:12px;color:var(--muted);margin-top:2px}
.topbar-user{display:flex;align-items:center;gap:14px}
.topbar-user .who{text-align:right;line-height:1.3}
.topbar-user .who strong{display:block;font-size:13px;color:var(--text)}
.topbar-user .who small{color:var(--muted);text-transform:capitalize}
.avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--navy-800),var(--navy-700));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;
}
.content{padding:26px 28px 40px;max-width:1500px}

/* ---------------------------------------------------------------------
   Panels / cards
   --------------------------------------------------------------------- */
.panel{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px 22px;
  margin-bottom:20px;
  box-shadow:var(--shadow-sm);
}
.panel h2,.panel h3{margin-top:0;font-size:16px}
.panel h4{font-size:13px;color:var(--text-soft);text-transform:uppercase;letter-spacing:.04em;margin:14px 0 8px}
.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.panel-header h3{margin:0}

/* ---------------------------------------------------------------------
   Tables
   --------------------------------------------------------------------- */
table{width:100%;border-collapse:collapse;font-size:13.2px}
table th,table td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
table th{
  background:#fafbfd;color:var(--text-soft);font-weight:600;
  text-transform:uppercase;font-size:10.8px;letter-spacing:.05em;
  border-bottom:1px solid var(--border-strong);
}
table tr:last-child td{border-bottom:none}
table tbody tr{transition:background .1s ease}
table tbody tr:hover td{background:#f9fafc}
.table-wrap{overflow-x:auto}

/* ---------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border-radius:8px;border:1px solid var(--border-strong);
  background:#fff;color:var(--text);cursor:pointer;font-size:13px;font-weight:600;
  transition:all .12s ease;line-height:1.3;
}
.btn:hover{background:#f5f6f8;text-decoration:none}
.btn-primary{background:var(--orange-500);border-color:var(--orange-500);color:#fff;box-shadow:0 2px 6px rgba(247,148,29,.35)}
.btn-primary:hover{background:var(--orange-600)}
.btn-dark{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.btn-dark:hover{background:var(--navy-800)}
.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-danger:hover{background:#c62d24}
.btn-success{background:var(--success);border-color:var(--success);color:#fff}
.btn-sm{padding:5px 10px;font-size:12px;border-radius:6px}
.btn-block{display:flex;width:100%;justify-content:center}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------------------------------------------------------------------
   Forms
   --------------------------------------------------------------------- */
form label{display:block;margin-bottom:14px;font-weight:600;font-size:12.5px;color:var(--text-soft)}
form input,form select,form textarea{
  width:100%;padding:9px 11px;margin-top:6px;
  border:1px solid var(--border-strong);border-radius:8px;
  font-size:13.5px;font-weight:400;color:var(--text);
  background:#fff;transition:border-color .12s ease,box-shadow .12s ease;
}
form input:focus,form select:focus,form textarea:focus{
  outline:none;border-color:var(--orange-500);box-shadow:0 0 0 3px rgba(247,148,29,.15);
}
form .checkbox{display:flex;align-items:center;gap:8px;font-weight:500;color:var(--text)}
form .checkbox input{width:auto;margin-top:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media (max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------------------------------------------------------------------
   Alerts / badges
   --------------------------------------------------------------------- */
.alert{padding:11px 16px;border-radius:10px;margin-bottom:16px;font-size:13px;font-weight:500;border:1px solid transparent}
.alert-success{background:var(--success-bg);color:#086b43;border-color:#bfe9d5}
.alert-error{background:var(--danger-bg);color:#9c261e;border-color:#f4c6c2}
.alert-warning{background:var(--warning-bg);color:#8a5c00;border-color:#f3ddab}

.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:99px;font-size:11px;font-weight:700;letter-spacing:.01em}
.badge-success{background:var(--success-bg);color:#086b43}
.badge-warning{background:var(--warning-bg);color:#8a5c00}
.badge-danger{background:var(--danger-bg);color:#9c261e}
.badge-info{background:var(--info-bg);color:#1d4ec2}
.badge-muted{background:#eef0f4;color:#5b6577}

.muted{color:var(--muted)}
small.muted{font-size:12px}

/* ---------------------------------------------------------------------
   Stat cards / dashboard
   --------------------------------------------------------------------- */
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px}
@media (max-width:1100px){.stat-cards{grid-template-columns:repeat(2,1fr)}}
.stat-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:18px 20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.stat-card::before{
  content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--orange-500);
}
.stat-card.accent-navy::before{background:var(--navy-800)}
.stat-card.accent-success::before{background:var(--success)}
.stat-card.accent-danger::before{background:var(--danger)}
.stat-card .icon{
  width:38px;height:38px;border-radius:10px;background:var(--orange-50);color:var(--orange-600);
  display:flex;align-items:center;justify-content:center;margin-bottom:10px;
}
.stat-card .value{font-size:25px;font-weight:800;color:var(--navy-900);letter-spacing:-.02em}
.stat-card .label{color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.03em;margin-top:2px}
.stat-card .delta{font-size:11.5px;font-weight:600;margin-top:6px}
.stat-card .delta.up{color:var(--success)}
.stat-card .delta.down{color:var(--danger)}

/* ---------------------------------------------------------------------
   Toolbar / search
   --------------------------------------------------------------------- */
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:10px;flex-wrap:wrap}
.toolbar form{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toolbar input[type=text],.toolbar input[type=date]{padding:9px 12px;border:1px solid var(--border-strong);border-radius:8px;font-size:13px;min-width:200px}
.toolbar select{padding:9px 12px;border:1px solid var(--border-strong);border-radius:8px;font-size:13px}

/* ---------------------------------------------------------------------
   Tabs / pill nav (used on statement, reports pages)
   --------------------------------------------------------------------- */
.tab-nav{display:flex;gap:4px;border-bottom:2px solid var(--border);margin-bottom:18px}
.tab-nav a{padding:9px 16px;font-size:13px;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px}
.tab-nav a.active{color:var(--orange-600);border-color:var(--orange-500)}

/* ---------------------------------------------------------------------
   Auth pages
   --------------------------------------------------------------------- */
.auth-page{
  display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:radial-gradient(circle at 20% 20%,#1c3560 0%,var(--navy-950) 60%);
  padding:20px;
}
.auth-box{
  background:#fff;padding:38px 36px;border-radius:var(--radius-lg);width:360px;
  box-shadow:var(--shadow-lg);
}
.auth-box .logo-mark{
  width:46px;height:46px;border-radius:12px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--orange-500),#ffb347);
  display:flex;align-items:center;justify-content:center;color:#1a1200;font-weight:800;font-size:19px;
  box-shadow:0 4px 14px rgba(247,148,29,.4);
}
.auth-box h1{margin:0 0 4px;text-align:center;font-size:20px}
.auth-box p.muted{text-align:center;margin-bottom:22px}

/* ---------------------------------------------------------------------
   Misc
   --------------------------------------------------------------------- */
.divider{height:1px;background:var(--border);margin:18px 0;border:none}
.kv-list{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13px}
.kv-list dt{color:var(--muted);font-weight:600}
.kv-list dd{margin:0}
.empty-state{text-align:center;padding:36px 20px;color:var(--muted)}
.empty-state .icon{font-size:32px;margin-bottom:8px;opacity:.5}
.text-right{text-align:right}
.font-mono{font-family:'SFMono-Regular',Consolas,monospace}
.chip-row{display:flex;gap:8px;flex-wrap:wrap}
.progress-bar{height:6px;border-radius:99px;background:#eef0f4;overflow:hidden}
.progress-bar span{display:block;height:100%;background:var(--orange-500)}

[dir="rtl"] .sidebar li.active a{border-right:none;border-left:3px solid var(--orange-500)}
[dir="rtl"] .stat-card::before{left:auto;right:0}

@media print{
  .sidebar,.topbar,.toolbar,.no-print{display:none !important}
  .app-main{margin:0}
  .content{padding:0}
  .panel{box-shadow:none;border:none}
}