:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5d6b7a;
  --primary: #0f7b6c;
  --primary-dark: #0b5e53;
  --danger: #b42318;
  --border: #dde3ea;
  --ok-bg: #e6f4f1;
  --err-bg: #fdecea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, "Noto Sans Arabic", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

.container { max-width: 720px; margin: 0 auto; padding: 16px; }
.narrow { max-width: 420px; }

header.top {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
header.top h1 { font-size: 18px; margin: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.card h2 { font-size: 18px; margin: 0 0 12px; }

label { display: block; font-weight: 600; margin: 12px 0 4px; }
input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
}
input[dir="ltr"] { text-align: left; }

button, .btn {
  display: inline-block;
  border: 0;
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 16px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
}
button:hover { background: var(--primary-dark); }
button:disabled { opacity: .6; cursor: wait; }
button.block { width: 100%; margin-top: 16px; }
button.light { background: #fff; color: var(--primary); }
button.danger { background: var(--danger); }

.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tabs button { flex: 1; background: #e9eef2; color: var(--text); }
.tabs button.active { background: var(--primary); color: #fff; }

.msg { padding: 10px 12px; border-radius: 8px; margin-top: 12px; display: none; }
.msg.show { display: block; }
.msg.ok { background: var(--ok-bg); }
.msg.err { background: var(--err-bg); color: var(--danger); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--border); padding: 8px 6px; text-align: right; }
th { background: #eef2f5; }
ul.errors { color: var(--danger); padding-right: 20px; }
.nav { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.nav .btn { text-align: center; }

.muted { color: var(--muted); font-size: 14px; }
.hidden { display: none !important; }