:root {
  --primary: #2f6f4f;
  --primary-dark: #234f38;
  --accent: #c9a13b;
  --bg: #f7f5f0;
  --card-bg: #ffffff;
  --text: #26302b;
  --muted: #6b7570;
  --danger: #b64545;
  --success: #2f6f4f;
  --border: #e3e0d6;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Tahoma", "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  direction: rtl;
  line-height: 1.7;
}

a { color: inherit; }

header.site-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 18px 24px;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: bold;
  text-decoration: none;
  color: #fff;
}

.brand .tag {
  font-size: 12px;
  font-weight: normal;
  background: var(--accent);
  color: #2b2100;
  padding: 2px 8px;
  border-radius: 20px;
}

nav.main-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

nav.main-nav a {
  text-decoration: none;
  color: #fff;
  background: rgba(255,255,255,0.12);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  transition: background .15s;
}

nav.main-nav a:hover { background: rgba(255,255,255,0.25); }
nav.main-nav a.danger { background: rgba(182,69,69,0.6); }

main.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 15px;
}
.flash.success { background: #e5f3ea; color: var(--success); border: 1px solid #bfe3cc; }
.flash.error { background: #fbeaea; color: var(--danger); border: 1px solid #f0c6c6; }
.flash.info { background: #eef4fb; color: #2a5a8c; border: 1px solid #cfe0f2; }

.stats-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  flex: 1;
  min-width: 140px;
  text-align: center;
}

.stat-card .num {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary);
}

.stat-card .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

.topics-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.topic-pill {
  background: #eef2ec;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 13px;
  color: var(--primary-dark);
}

.search-box {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.search-box input[type=text] {
  flex: 1;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 15px;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}

.book-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.book-cover {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #eee;
}

.book-body { padding: 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.book-title { font-weight: bold; font-size: 16px; }
.book-author { color: var(--muted); font-size: 13px; }
.book-topic { font-size: 12px; color: var(--primary-dark); }
.book-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 8px; }
.book-price { font-weight: bold; color: var(--accent); }
.book-copies { font-size: 12px; color: var(--muted); }
.book-copies.out { color: var(--danger); }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  text-align: center;
}
.btn:hover { background: var(--primary-dark); }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn.danger { background: var(--danger); }
.btn.block { display: block; width: 100%; }
.btn:disabled { background: #ccc; cursor: not-allowed; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

form .field { margin-bottom: 14px; }
form label { display: block; margin-bottom: 5px; font-size: 14px; color: var(--muted); }
form input[type=text], form input[type=tel], form input[type=number],
form input[type=password], form textarea, form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
}
form input[type=file] { width: 100%; }

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

.badge { padding: 3px 10px; border-radius: 20px; font-size: 12px; }
.badge.pending { background: #fdf3d9; color: #8a6d1a; }
.badge.approved { background: #e5f3ea; color: var(--success); }
.badge.rejected { background: #fbeaea; color: var(--danger); }

.actions { display: flex; gap: 6px; }

.admin-tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-tabs a {
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
}
.admin-tabs a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.empty-state { text-align: center; padding: 40px; color: var(--muted); }

footer.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 13px;
}

.two-col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.preview-img {
  max-width: 160px;
  max-height: 160px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 8px;
  display: none;
}