:root {
    --bg: #0f1620;
    --bg-2: #16202c;
    --card: #1b2735;
    --border: #26344a;
    --text: #e6edf3;
    --muted: #8aa0b8;
    --green: #25d366;
    --green-d: #1da851;
    --red: #e5484d;
    --yellow: #f5a623;
    --blue: #3b82f6;
    --radius: 14px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    direction: rtl;
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ===== شاشة الدخول ===== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 30px;
    width: 100%;
    max-width: 380px;
    text-align: center;
}

.login-card .logo {
    font-size: 44px;
    margin-bottom: 8px;
}

.login-card h1 {
    font-size: 22px;
    margin-bottom: 24px;
}

/* ===== التخطيط العام ===== */
.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 230px;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    padding: 22px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar .brand {
    font-size: 20px;
    font-weight: 700;
    padding: 6px 10px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 10px;
    color: var(--muted);
    cursor: pointer;
    transition: 0.15s;
    font-size: 15px;
}

.nav-item:hover {
    background: var(--card);
    color: var(--text);
}

.nav-item.active {
    background: var(--green);
    color: #06210f;
    font-weight: 600;
}

.sidebar .spacer {
    flex: 1;
}

.main {
    flex: 1;
    padding: 26px 30px;
    overflow-x: auto;
}

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-head h2 {
    font-size: 24px;
}

/* ===== البطاقات والشبكة ===== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}

.stat .num {
    font-size: 30px;
    font-weight: 700;
}

.stat .lbl {
    color: var(--muted);
    font-size: 14px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}

.card .card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.card .name {
    font-size: 17px;
    font-weight: 600;
}

.card .meta {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 14px;
    word-break: break-all;
}

.card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ===== الشارات (Badges) ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12.5px;
    font-weight: 600;
}

.badge.connected { background: rgba(37, 211, 102, 0.15); color: var(--green); }
.badge.qr { background: rgba(245, 166, 35, 0.15); color: var(--yellow); }
.badge.disconnected,
.badge.initializing { background: rgba(138, 160, 184, 0.15); color: var(--muted); }
.badge.logged_out { background: rgba(229, 72, 77, 0.15); color: var(--red); }
.badge.on { background: rgba(37, 211, 102, 0.15); color: var(--green); }
.badge.off { background: rgba(229, 72, 77, 0.15); color: var(--red); }

/* ===== الأزرار ===== */
.btn {
    border: none;
    border-radius: 9px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { background: var(--green); color: #06210f; }
.btn.primary:hover { background: var(--green-d); }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.ghost:hover { background: var(--bg-2); }
.btn.danger { background: rgba(229, 72, 77, 0.15); color: var(--red); }
.btn.danger:hover { background: var(--red); color: #fff; }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.full { width: 100%; justify-content: center; }

/* ===== الجداول ===== */
.table-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: right;
    padding: 13px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg-2);
    color: var(--muted);
    font-weight: 600;
    white-space: nowrap;
}

tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
tbody tr:last-child td { border-bottom: none; }

/* ===== النماذج ===== */
.field { margin-bottom: 14px; text-align: right; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; color: var(--muted); }

input, select, textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 11px 13px;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--green);
}

.checks { display: flex; gap: 16px; flex-wrap: wrap; }
.checks label { display: flex; align-items: center; gap: 6px; color: var(--text); }
.checks input { width: auto; }

/* ===== النوافذ المنبثقة (Modals) ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
}

.modal-overlay.show { display: flex; }

.modal {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    width: 100%;
    max-width: 460px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 { margin-bottom: 18px; font-size: 20px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; }

.qr-box {
    text-align: center;
    padding: 10px;
}

.qr-box img {
    width: 260px;
    height: 260px;
    background: #fff;
    border-radius: 12px;
    padding: 10px;
}

.qr-box .hint { color: var(--muted); margin-top: 14px; font-size: 14px; }

.secret-box {
    background: var(--bg);
    border: 1px dashed var(--green);
    border-radius: 9px;
    padding: 14px;
    font-family: monospace;
    word-break: break-all;
    font-size: 14px;
    margin: 10px 0;
    direction: ltr;
    text-align: left;
}

.empty {
    text-align: center;
    color: var(--muted);
    padding: 50px 20px;
}

.empty .ico { font-size: 50px; margin-bottom: 10px; }

/* ===== التنبيهات ===== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 13px 22px;
    font-size: 14px;
    z-index: 200;
    opacity: 0;
    transition: 0.25s;
    pointer-events: none;
}

.toast.show { opacity: 1; bottom: 34px; }
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }

.error-msg { color: var(--red); font-size: 14px; margin-top: 10px; min-height: 18px; }

.spin {
    width: 34px; height: 34px;
    border: 3px solid var(--border);
    border-top-color: var(--green);
    border-radius: 50%;
    animation: rot 0.8s linear infinite;
    margin: 30px auto;
}

@keyframes rot { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

@media (max-width: 720px) {
    .app { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: relative; flex-direction: row; flex-wrap: wrap; }
    .sidebar .spacer { display: none; }
    .main { padding: 18px; }
}