/* ============================================================
   Fairfood Price – Admin Panel Stylesheet
   Design: Dashboard Layout + Dark/Light + Responsive
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  --primary: #FF5A00;
  --primary-hover: #E04E00;
  --primary-light: rgba(255, 90, 0, 0.08);
  --primary-glow: 0 0 20px rgba(255, 90, 0, 0.25);
  --success: #34C759;
  --success-light: rgba(52, 199, 89, 0.1);
  --danger: #FF3B30;
  --danger-light: rgba(255, 59, 48, 0.1);
  --warning: #FF9500;
  --info: #007AFF;

  --bg: #F5F5F7;
  --surface: #FFFFFF;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #1C1C28;
  --text-secondary: #8E8EA0;
  --text-muted: #B0B0C0;
  --border: #F0F0F5;
  --border-light: #F5F5FA;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.2);

  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --radius-full: 50px;

  --font: 'Segoe UI', 'Tajawal', system-ui, -apple-system, sans-serif;
  --transition: 0.25s cubic-bezier(0.23, 1, 0.32, 1);
  --transition-slow: 0.35s cubic-bezier(0.23, 1, 0.32, 1);
  --glass-blur: blur(20px);

  --sidebar-width: 260px;
  --header-height: 64px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

/* Dark mode */
body[data-theme="dark"] {
  --bg: #1C1C28;
  --surface: #2C2C3A;
  --surface-glass: rgba(44, 44, 58, 0.72);
  --text: #F5F5F7;
  --text-secondary: #A0A0B0;
  --text-muted: #6B6B7B;
  --border: #3A3A4A;
  --border-light: #2E2E3A;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --primary-light: rgba(255, 90, 0, 0.15);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; -webkit-text-size-adjust:100%; overscroll-behavior:none; }
body {
  font-family: var(--font);
  background: var(--bg);
  margin: 0; padding: 0; overflow: hidden;
  width: 100%; height: 100dvh; position: relative;
  transition: background 0.3s; overscroll-behavior: none;
}
body[dir="rtl"] { direction: rtl; }
body[dir="ltr"] { direction: ltr; }

/* ---------- App Shell ---------- */
.app-wrapper {
  width: 100%; height: 100%; background: var(--bg);
  display: flex; flex-direction: column; overflow: hidden;
  position: relative; transition: background 0.3s;
}
.app-loading .screen { opacity: 0; }
.app-wrapper:not(.app-loading) .screen.active { opacity: 1; }
.app-loader {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; background: var(--bg);
  z-index: 100; transition: opacity var(--transition-slow), visibility var(--transition-slow);
}
.app-wrapper:not(.app-loading) .app-loader { opacity: 0; visibility: hidden; pointer-events: none; }
.app-loader .spinner.large { width: 48px; height: 48px; border-width: 4px; }

/* ---------- Admin Layout ---------- */
.admin-layout {
  display: flex; flex: 1; overflow: hidden;
}

/* ---------- Sidebar ---------- */
.admin-sidebar {
  width: var(--sidebar-width); background: var(--surface);
  border-left: 1px solid var(--border); display: flex;
  flex-direction: column; overflow-y: auto;
  transition: transform var(--transition-slow), width var(--transition-slow);
  z-index: 10; flex-shrink: 0;
}
body[dir="ltr"] .admin-sidebar { border-left: none; border-right: 1px solid var(--border); }
.sidebar-header {
  padding: 20px 16px; border-bottom: 1px solid var(--border);
  text-align: center; font-weight: 800; font-size: 1.2rem; color: var(--primary);
}
.sidebar-nav {
  flex: 1; padding: 12px 0;
}
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; width: 100%; border: none;
  background: transparent; color: var(--text);
  font-size: 0.95rem; font-weight: 500; cursor: pointer;
  transition: background var(--transition), color var(--transition);
  font-family: var(--font); text-align: start;
}
.sidebar-link:hover { background: var(--primary-light); color: var(--primary); }
.sidebar-link.active { background: var(--primary-light); color: var(--primary); font-weight: 700; }
.sidebar-footer { padding: 12px 0; border-top: 1px solid var(--border); }

/* Sidebar responsive: hidden by default on mobile, toggled by button */
@media (max-width: 768px) {
  .admin-sidebar {
    position: fixed; inset: 0; width: 280px; z-index: 20;
    transform: translateX(100%);
  }
  body[dir="ltr"] .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.open { transform: translateX(0); }
}

/* ---------- Main Content ---------- */
.admin-main {
  flex: 1; display: flex; flex-direction: column; overflow: hidden;
}

/* ---------- Admin Header ---------- */
.admin-header {
  background: var(--surface-glass); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur); border-bottom: 1px solid var(--border);
  padding: 0 20px; display: flex; align-items: center; justify-content: space-between;
  height: var(--header-height); flex-shrink: 0;
}
.header-left { display: flex; align-items: center; gap: 12px; }
.header-left h1 { font-size: 1.4rem; font-weight: 700; color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.admin-name { font-weight: 600; color: var(--text); font-size: 0.9rem; }

.icon-btn {
  background: transparent; border: none; font-size: 1.4rem;
  color: var(--text); cursor: pointer; padding: 8px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.icon-btn:hover { background: var(--primary-light); }

.lang-switcher { display:flex; gap:4px; }
.lang-btn {
  padding: 4px 10px; border-radius: 20px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-size: 0.7rem; font-weight: 700;
  transition: var(--transition); color: var(--text-secondary);
}
.lang-btn.active { background: var(--primary); color:#fff; border-color:var(--primary); }

/* ---------- Screens ---------- */
.screen {
  position: absolute; inset: var(--header-height) 0 0 0;
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; padding: 24px;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  overflow-y: auto; -webkit-overflow-scrolling: touch;
}
.screen.active { opacity: 1; visibility: visible; position: relative; inset: auto; }

/* ---------- Stats Grid ---------- */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px; margin-bottom: 32px;
}
.stat-card {
  background: var(--surface); border-radius: var(--radius);
  padding: 20px; display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-icon { font-size: 2rem; }
.stat-info { display: flex; flex-direction: column; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); }
.stat-value { font-size: 1.6rem; font-weight: 800; color: var(--text); }

/* ---------- Chart Placeholder ---------- */
.chart-container {
  background: var(--surface); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow-sm);
}
.chart-placeholder {
  height: 200px; background: var(--border-light);
  border-radius: var(--radius-sm); display: flex;
  align-items: center; justify-content: center;
  color: var(--text-secondary);
}

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab {
  padding: 8px 20px; border-radius: var(--radius-full);
  border: 1px solid var(--border); background: var(--surface);
  font-weight: 600; cursor: pointer; font-family: var(--font);
  transition: var(--transition); color: var(--text-secondary);
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Lists (Orders, Accounts, Notifications) ---------- */
.orders-list, .accounts-list, .notifications-list {
  display: flex; flex-direction: column; gap: 12px;
}
.order-card, .account-card, .notification-card {
  background: var(--surface); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow-sm);
  display: flex; justify-content: space-between; align-items: center;
  transition: var(--transition); border: 1px solid transparent;
}
.order-card:hover, .account-card:hover, .notification-card:hover {
  box-shadow: var(--shadow-md); border-color: var(--primary-light);
}

/* ---------- Settings Content ---------- */
.settings-content {
  display: flex; flex-direction: column; gap: 16px;
}
.settings-item {
  background: var(--surface); border-radius: var(--radius-sm);
  padding: 16px; display: flex; justify-content: space-between;
  align-items: center; box-shadow: var(--shadow-sm);
}
.settings-item select, .settings-item input {
  padding: 8px 12px; border-radius: var(--radius-full);
  border: 1px solid var(--border); background: var(--surface);
  font-family: var(--font); color: var(--text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: var(--radius-full);
  border: none; font-weight: 700; cursor: pointer; font-size: 0.9rem;
  font-family: var(--font); transition: var(--transition); gap: 8px;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--primary-glow); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-sm { padding: 8px 16px; font-size: 0.8rem; }
.btn-block { width: 100%; }

/* ---------- Empty State ---------- */
.empty-state {
  display: flex; align-items: center; justify-content: center;
  padding: 40px; color: var(--text-secondary); font-weight: 600;
  opacity: 0; visibility: hidden; transition: opacity var(--transition), visibility var(--transition);
}
.empty-state:not(.is-hidden) { opacity: 1; visibility: visible; }

/* ---------- Offline / Reconnect Banners ---------- */
.offline-banner, .reconnect-banner {
  padding: 12px; text-align: center; font-weight: 700; z-index: 20;
  position: fixed; top: 0; left: 0; right: 0;
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}
.offline-banner { background: var(--danger); color: #fff; }
.reconnect-banner { background: var(--success); color: #fff; }
.offline-banner:not(.is-hidden), .reconnect-banner:not(.is-hidden) { opacity: 1; visibility: visible; }

/* ---------- Toast ---------- */
.toast-container {
  position: fixed; top: calc(20px + var(--safe-top)); left: 50%;
  transform: translateX(-50%); z-index: 100;
  display: flex; flex-direction: column; gap: 8px; pointer-events: none;
}
.toast {
  background: var(--text); color: var(--surface); padding: 12px 24px;
  border-radius: var(--radius-full); font-weight: 700; box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease forwards;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Spinner ---------- */
.spinner {
  width: 24px; height: 24px; border: 3px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Accessibility ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ---------- Noscript ---------- */
.noscript-warning {
  background: var(--danger); color: #fff; padding: 16px; text-align: center; font-weight: 700;
}

/* ---------- Utility ---------- */
.is-hidden { display: none !important; }

/* ---------- Responsive Adjustments ---------- */
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .screen { padding: 16px; }
}