:root {
  --primary: #2980b9;
  --primary-dark: #22658f;
  --success: #27ae60;
  --success-dark: #1f8f50;
  --danger: #c0392b;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #e3e7eb;
  --text: #2c3e50;
  --text-muted: #8a94a3;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  direction: rtl;
}

a { color: var(--primary); text-decoration: none; }

.container { max-width: 640px; margin: 0 auto; padding: 16px; }

nav.topnav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
nav.topnav .brand { font-weight: bold; color: var(--text); }
nav.topnav .links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.92rem; }

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.auth-card {
  background: var(--card);
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.auth-card h2 { margin-top: 0; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 14px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
}
.btn:hover { background: var(--primary-dark); }
.btn.btn-success { background: var(--success); }
.btn.btn-success:hover { background: var(--success-dark); }
.btn.btn-danger { background: var(--danger); }
.btn.btn-outline { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.btn-sm { padding: 6px 10px; font-size: 0.82rem; }
.btn.btn-block { width: 100%; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 14px;
}

.list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.list-row:last-child { border-bottom: none; }
.list-row .meta { color: var(--text-muted); font-size: 0.82rem; }

.item-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.item-row.bought { opacity: 0.65; }
.item-row .item-name { font-weight: 600; font-size: 1rem; }
.item-row.bought .item-name { text-decoration: line-through; }
.item-row .item-sub { color: var(--text-muted); font-size: 0.8rem; margin-top: 2px; }
.item-row .item-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 12px;
  background: #eaf2f8;
  color: var(--primary);
  margin-inline-start: 6px;
}

.buy-form {
  display: none;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  gap: 8px;
  flex-wrap: wrap;
}
.buy-form.open { display: flex; }
.buy-form > * { flex: 1 1 140px; }

.section-title { font-size: 0.95rem; color: var(--text-muted); margin: 18px 0 8px; }

.error-box { color: var(--danger); background: #fdecea; padding: 10px; border-radius: 8px; margin-bottom: 14px; font-size: 0.9rem; }

table.history-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.history-table th, table.history-table td { padding: 8px; text-align: center; border-bottom: 1px solid var(--border); }
table.history-table tr.best td { background: #eafaf0; font-weight: bold; }

.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

@media (max-width: 480px) {
  .container { padding: 12px; }
  .card { padding: 12px; }
}