/**
 * ============================================================================
 * مشروع: نظام إدارة الموارد البشرية والرواتب - شركة طيبة لاستيراد وتوزيع الأدوية
 * الملف: styles.css
 * الوظيفة: التنسيق البصري، نظام الألوان، الاستجابة للشاشات، وحركات الواجهة
 * ============================================================================
 */

:root {
  --navy-primary: #0f2b48;
  --navy-dark: #091a2c;
  --navy-light: #183e66;
  --emerald-primary: #0fa97f;
  --emerald-dark: #0b8060;
  --emerald-subtle: rgba(15, 169, 127, 0.12);
  --bg-canvas: #f4f6f9;
  --card-border: #e2e8f0;
  --text-main: #1e293b;
  --text-muted: #64748b;
}

body {
  font-family: 'Cairo', sans-serif;
  background-color: var(--bg-canvas);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ============================================================================
   1. الهوية البصرية ونظام الألوان المخصص
   ============================================================================ */

.bg-navy { background-color: var(--navy-primary) !important; }
.text-navy { color: var(--navy-primary) !important; }

.bg-emerald { background-color: var(--emerald-primary) !important; }
.text-emerald { color: var(--emerald-primary) !important; }

.bg-emerald-subtle { background-color: var(--emerald-subtle) !important; }
.border-emerald-subtle { border-color: rgba(15, 169, 127, 0.25) !important; }
.bg-white-10 { background-color: rgba(255, 255, 255, 0.08); }

/* الأزرار المعتمدة */
.btn-navy {
  background-color: var(--navy-primary);
  color: #ffffff;
  border: 1px solid var(--navy-primary);
  transition: all 0.2s ease-in-out;
}

.btn-navy:hover, .btn-navy:focus {
  background-color: var(--navy-dark);
  border-color: var(--navy-dark);
  color: #ffffff;
}

.btn-emerald {
  background-color: var(--emerald-primary);
  color: #ffffff;
  border: 1px solid var(--emerald-primary);
  transition: all 0.2s ease-in-out;
}

.btn-emerald:hover, .btn-emerald:focus {
  background-color: var(--emerald-dark);
  border-color: var(--emerald-dark);
  color: #ffffff;
}

/* بطاقات وشارات الهوية */
.brand-badge {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--emerald-primary), var(--navy-primary));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(15, 43, 72, 0.2);
}

.brand-badge-sm {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--emerald-primary), var(--navy-primary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================================
   2. شاشة تسجيل الدخول
   ============================================================================ */

#login-container {
  background: radial-gradient(circle at 85% 15%, #18426d, #091a2c);
  min-height: 100vh;
}

.login-card {
  width: 100%;
  max-width: 420px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-card .form-control {
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.95rem;
}

.login-card .form-control:focus {
  border-color: var(--emerald-primary);
  box-shadow: 0 0 0 0.2rem rgba(15, 169, 127, 0.15);
}

/* ============================================================================
   3. إطار لوحة التحكم، الشريط الجانبي، والعلوي
   ============================================================================ */

.sidebar {
  width: 260px;
  min-height: 100vh;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1040;
}

.sidebar .nav-link {
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  border-radius: 10px;
  padding: 11px 16px;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.sidebar .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.sidebar .nav-link.active {
  background-color: var(--emerald-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(15, 169, 127, 0.35);
}

.topbar {
  height: 68px;
  z-index: 1020;
  border-color: var(--card-border) !important;
}

/* بطاقات الوحدات ولوحة المؤشرات */
.stat-card {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
}

/* الجداول وسجلات البيانات */
.table-custom {
  background-color: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--card-border);
}

.table-custom th {
  background-color: #f8fafc;
  color: var(--navy-primary);
  font-weight: 700;
  border-bottom: 1px solid var(--card-border);
  padding: 14px;
}

.table-custom td {
  padding: 14px;
  vertical-align: middle;
  border-bottom: 1px solid var(--card-border);
}

/* ============================================================================
   4. طبقات التعتيم والاستجابة للهواتف المحمولة
   ============================================================================ */

.sidebar-backdrop {
  position: fixed;
  top: 0;
  right: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1030;
  backdrop-filter: blur(2px);
}

@media (max-width: 767.98px) {
  .sidebar {
    position: fixed;
    top: 0;
    right: -260px;
    height: 100vh;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.25);
  }

  .sidebar.show {
    right: 0;
  }
}