:root {
  --bg-gradient: linear-gradient(135deg, #0f1221 0%, #1a1e35 100%);
  --glass-bg: rgba(24, 28, 47, 0.45);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --panel: rgba(31, 36, 64, 0.6);
  --panel2: rgba(42, 48, 82, 0.6);
  --text: #e8eaf6;
  --muted: #9aa0c3;
  --accent: #8b5cf6;
  --accent-glow: rgba(139, 92, 246, 0.4);
  --green: #10b981;
  --red: #ef4444;
  --yellow: #f59e0b;
  --radius: 16px;
  --font-body: "Vazirmatn", "Segoe UI", Tahoma, system-ui, sans-serif;
}

* { box-sizing: border-box; }

.background-blob {
  position: fixed; top: -10%; left: -10%; width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, rgba(0,0,0,0) 70%);
  z-index: -1; pointer-events: none;
}
.background-blob.secondary {
  top: auto; bottom: -20%; left: auto; right: -10%;
  background: radial-gradient(circle, rgba(16,185,129,0.1) 0%, rgba(0,0,0,0) 70%);
}

body {
  margin: 0; background: var(--bg-gradient); color: var(--text);
  font-family: var(--font-body); direction: rtl; min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
}
a { color: var(--accent); text-decoration: none; transition: all 0.3s ease; }
a:hover { color: #a78bfa; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 260px; background: var(--glass-bg);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--glass-border);
  display: flex; flex-direction: column; padding: 24px 16px; gap: 8px;
  box-shadow: var(--glass-shadow); z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.brand { font-size: 22px; font-weight: 800; padding: 8px 10px 24px; display: flex; align-items: center; gap: 10px; background: -webkit-linear-gradient(45deg, #a78bfa, #38bdf8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.sidebar nav { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.sidebar nav a {
  color: var(--muted); padding: 12px 16px; border-radius: 12px; display: flex;
  align-items: center; gap: 12px; font-weight: 500; transition: all 0.3s ease;
}
.sidebar nav a:hover { background: var(--panel); color: var(--text); transform: translateX(-4px); }
.sidebar nav a.active {
  background: rgba(139, 92, 246, 0.15); color: #a78bfa;
  border-right: 3px solid var(--accent);
  box-shadow: inset 0 0 10px rgba(139, 92, 246, 0.05);
}

.logout button {
  width: 100%; background: rgba(239, 68, 68, 0.1); color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2); border-radius: 12px; padding: 12px;
  cursor: pointer; font-size: 15px; font-family: inherit; font-weight: 500;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all 0.3s ease;
}
.logout button:hover { background: var(--red); color: #fff; box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3); }

.content { flex: 1; display: flex; flex-direction: column; width: 100%; overflow-x: hidden; }
.topbar { padding: 24px 32px; display: flex; justify-content: flex-end; align-items: center; }
.user-info { display: flex; align-items: center; gap: 8px; background: var(--glass-bg); padding: 8px 16px; border-radius: 999px; border: 1px solid var(--glass-border); font-size: 14px; font-weight: 600; }
.content-wrapper { padding: 0 32px 32px; flex: 1; max-width: 1200px; width: 100%; margin: 0 auto; }

h1 { font-size: 28px; margin: 0 0 24px; font-weight: 800; letter-spacing: -0.5px; }
h2 { font-size: 18px; margin: 32px 0 16px; color: var(--text); font-weight: 700; display: flex; align-items: center; gap: 8px;}

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius); padding: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1); transition: all 0.3s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); border-color: rgba(255,255,255,0.15); }
.card .label { color: var(--muted); font-size: 14px; font-weight: 500; }
.card .value { font-size: 32px; font-weight: 800; margin-top: 8px; letter-spacing: -0.5px; }
.card .value.green { color: var(--green); text-shadow: 0 0 20px rgba(16,185,129,0.4); }
.card .value.red { color: var(--red); text-shadow: 0 0 20px rgba(239,68,68,0.4); }

/* Tables */
.table-responsive { width: 100%; overflow-x: auto; border-radius: var(--radius); }
table {
  width: 100%; border-collapse: separate; border-spacing: 0; min-width: 600px;
  background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
}
th, td { padding: 14px 18px; text-align: right; border-bottom: 1px solid rgba(255,255,255,0.05); }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; }
tr { transition: background 0.2s ease; }
tr:hover td { background: rgba(255,255,255,0.03); }
tr:last-child td { border-bottom: none; }

/* Forms & Buttons */
.btn {
  background: var(--accent); color: #fff; border: none; border-radius: 12px;
  padding: 10px 20px; cursor: pointer; font-size: 15px; font-family: inherit; font-weight: 600;
  transition: all 0.3s ease; box-shadow: 0 4px 12px var(--accent-glow);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px var(--accent-glow); filter: brightness(1.1); }
.btn.red { background: var(--red); box-shadow: 0 4px 12px rgba(239,68,68,0.3); }
.btn.ghost { background: var(--panel); color: var(--text); box-shadow: none; border: 1px solid var(--glass-border); }

input, textarea, select {
  background: rgba(0,0,0,0.2); border: 1px solid var(--glass-border); color: var(--text);
  border-radius: 12px; padding: 12px 16px; font-family: inherit; font-size: 15px; transition: all 0.3s ease;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(139,92,246,0.2); background: rgba(0,0,0,0.3); }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.form-grid { display: grid; grid-template-columns: 200px 1fr; gap: 16px; align-items: center; max-width: 600px; }

/* Feedback */
.flash { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: var(--green); padding: 12px 16px; border-radius: 12px; margin-bottom: 24px; display: flex; align-items: center; gap: 10px; font-weight: 500; }
.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--red); padding: 12px 16px; border-radius: 12px; margin-bottom: 24px; }
.pill { padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; display: inline-block; text-align: center;}
.pill.ERROR { background: rgba(239,68,68,0.15); color: #fca5a5; border: 1px solid rgba(239,68,68,0.3); }
.pill.CRITICAL { background: var(--red); color: #fff; box-shadow: 0 0 10px rgba(239,68,68,0.5); }
.pill.WARNING { background: rgba(245,158,11,0.15); color: #fcd34d; border: 1px solid rgba(245,158,11,0.3); }
.pill.SUCCESS { background: rgba(16,185,129,0.15); color: #6ee7b7; border: 1px solid rgba(16,185,129,0.3); }

/* Chart Container */
.chart-container {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 20px; box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  height: 350px; position: relative; width: 100%;
}

/* Mobile Topbar & Overlays */
.mobile-topbar {
  display: none; justify-content: space-between; align-items: center;
  padding: 16px 20px; background: rgba(24, 28, 47, 0.8);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky; top: 0; z-index: 90;
}
.menu-toggle {
  background: none; border: none; color: var(--text); padding: 8px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; border-radius: 8px;
}
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px); z-index: 95; opacity: 0; transition: opacity 0.3s ease;
}
.sidebar-overlay.open { display: block; opacity: 1; }
.desktop-only { display: block; }

/* Responsive Media Queries */
@media (max-width: 768px) {
  .layout { flex-direction: column; }
  .mobile-topbar { display: flex; }
  .desktop-only { display: none; }
  .sidebar {
    position: fixed; top: 0; bottom: 0; right: 0; transform: translateX(100%);
    width: 280px; padding-top: 20px;
  }
  .sidebar.open { transform: translateX(0); }
  .content { width: 100%; }
  .topbar { display: none; }
  .content-wrapper { padding: 20px; }
  .form-grid { grid-template-columns: 1fr; gap: 8px; }
  .cards { grid-template-columns: 1fr; }
  .chart-container { height: 250px; padding: 12px; }
}

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card {
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-radius: 24px; padding: 40px; width: 100%; max-width: 400px;
  box-shadow: var(--glass-shadow);
}
.login-card h1 { text-align: center; font-size: 24px; margin-bottom: 30px; }
.login-card input { width: 100%; margin-bottom: 16px; }
.login-card .btn { width: 100%; margin-top: 10px; }