/* ============================================================
   نظام إدارة الديون — تصميم عربي RTL احترافي
   يدعم Light/Dark Mode عبر [data-theme]
   ============================================================ */

:root {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #f9fafb;
  --color-border: #e2e6ea;
  --color-text: #1a1f26;
  --color-text-muted: #667085;
  --color-primary: #0f766e;
  --color-primary-dark: #0b5852;
  --color-danger: #dc2626;
  --color-warning: #d97706;
  --color-success: #16a34a;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --sidebar-width: 260px;
}

[data-theme="dark"] {
  --color-bg: #0f1419;
  --color-surface: #171d24;
  --color-surface-2: #1f2730;
  --color-border: #2b3542;
  --color-text: #e6e9ec;
  --color-text-muted: #9aa4b2;
  --color-primary: #14b8a6;
  --color-primary-dark: #0d9488;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  direction: rtl;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea {
  font-family: inherit; font-size: 14px;
  background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: 8px;
  padding: 10px 12px; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
label { font-size: 13px; color: var(--color-text-muted); margin-bottom: 4px; display: block; }

.field { margin-bottom: 14px; }
.field-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-row > .field { flex: 1; min-width: 180px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 18px; border-radius: 8px; border: none; font-size: 14px; font-weight: 600;
  background: var(--color-primary); color: #fff; transition: 0.15s;
}
.btn:hover { background: var(--color-primary-dark); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: var(--color-surface-2); color: var(--color-text); border: 1px solid var(--color-border); }
.btn.danger { background: var(--color-danger); }
.btn.ghost { background: transparent; color: var(--color-primary); padding: 6px 10px; }
.btn.sm { padding: 6px 12px; font-size: 13px; }

.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px;
}

.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-width); background: var(--color-surface); border-left: 1px solid var(--color-border);
  padding: 20px 16px; position: fixed; top: 0; right: 0; height: 100vh; overflow-y: auto;
  transform: translateX(0); transition: transform 0.2s; z-index: 40;
}
.sidebar.closed { transform: translateX(105%); }
.sidebar-user { display: flex; align-items: center; gap: 10px; padding: 12px; border-radius: 10px; background: var(--color-surface-2); margin-bottom: 18px; }
.sidebar-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: bold; }
.sidebar-nav a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; color: var(--color-text); font-size: 14px; margin-bottom: 2px; }
.sidebar-nav a:hover, .sidebar-nav a.active { background: var(--color-surface-2); color: var(--color-primary); }
.sidebar-nav .divider { border-top: 1px solid var(--color-border); margin: 12px 0; }

.main-content { margin-right: var(--sidebar-width); flex: 1; padding: 20px 24px; max-width: 1200px; }
.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.menu-toggle { display: none; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; padding: 8px 12px; font-size: 18px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); cursor: pointer; }
.stat-card .label { font-size: 13px; color: var(--color-text-muted); margin-bottom: 6px; }
.stat-card .value { font-size: 22px; font-weight: 700; }
.stat-card.warning .value { color: var(--color-warning); }
.stat-card.danger .value { color: var(--color-danger); }
.stat-card.success .value { color: var(--color-success); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-muted); font-weight: 600; font-size: 13px; background: var(--color-surface-2); }
tr:hover td { background: var(--color-surface-2); }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.success { background: rgba(22,163,74,0.12); color: var(--color-success); }
.badge.warning { background: rgba(217,119,6,0.12); color: var(--color-warning); }
.badge.danger { background: rgba(220,38,38,0.12); color: var(--color-danger); }
.badge.neutral { background: var(--color-surface-2); color: var(--color-text-muted); }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 16px; }
.modal { background: var(--color-surface); border-radius: var(--radius); padding: 24px; max-width: 520px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-md); }

.toast-container { position: fixed; bottom: 20px; left: 20px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; padding: 12px 16px; box-shadow: var(--shadow-md); font-size: 14px; min-width: 220px; }
.toast.success { border-right: 4px solid var(--color-success); }
.toast.error { border-right: 4px solid var(--color-danger); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--color-text-muted); }
.skeleton { background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-border) 50%, var(--color-surface-2) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 6px; height: 16px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.mobile-cards { display: none; }

@media (max-width: 860px) {
  .sidebar { transform: translateX(105%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-right: 0; padding: 14px; }
  .menu-toggle { display: inline-flex; }
  table.desktop-table { display: none; }
  .mobile-cards { display: block; }
  .mobile-cards .card { margin-bottom: 10px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-bg); padding: 16px; }
.login-card { width: 100%; max-width: 380px; }
.login-logo { text-align: center; margin-bottom: 20px; font-size: 20px; font-weight: 700; color: var(--color-primary); }

.password-toggle { position: relative; }
.password-toggle button { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--color-text-muted); }

.theme-toggle { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: 8px; padding: 8px 12px; }

.text-muted { color: var(--color-text-muted); }
.mt-16 { margin-top: 16px; }
.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }