/* ============================================
   Shkouh Smart Hub — استایل (نسخه ۰.۳.۰)
   ============================================ */

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

:root {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #263449;
  --accent: #38bdf8;
  --accent-green: #4ade80;
  --accent-red: #f87171;
  --accent-yellow: #facc15;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #334155;
}

body {
  font-family: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- صفحه ورود ---------- */
.login-overlay {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.97);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.login-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  width: 90%; max-width: 360px;
  text-align: center;
}
.login-icon { font-size: 2.5rem; margin-bottom: 12px; }
.login-box h2 { color: var(--accent); margin-bottom: 4px; }
.login-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }
.login-box input {
  width: 100%; padding: 12px 16px; border-radius: 8px;
  border: 1px solid var(--border); background-color: var(--bg);
  color: var(--text); font-size: 1rem; margin-bottom: 16px;
  outline: none; text-align: center;
}
.login-box input:focus { border-color: var(--accent); }
.login-box button {
  width: 100%; padding: 12px; border: none; border-radius: 8px;
  background-color: var(--accent); color: #0f172a;
  font-size: 1rem; font-weight: bold; cursor: pointer;
}
.login-box button:hover { background-color: #7dd3fc; }
.login-error { display: none; color: var(--accent-red); font-size: 0.85rem; margin-top: 12px; }

/* ---------- سربرگ ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 24px;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 2rem; }
.topbar h1 { font-size: 1.25rem; color: var(--accent); }
.subtitle { font-size: 0.85rem; color: var(--text-muted); }
.hub-status { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-muted); }

.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot-online {
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.logout-btn {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 8px;
  background-color: transparent; color: var(--text-muted);
  cursor: pointer; font-size: 0.85rem;
}
.logout-btn:hover { border-color: var(--accent-red); color: var(--accent-red); }

/* ---------- ناوبری ---------- */
.navbar {
  display: flex; gap: 8px; padding: 12px 24px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.nav-link {
  padding: 8px 16px; border-radius: 8px; color: var(--text-muted);
  text-decoration: none; font-size: 0.95rem; white-space: nowrap;
}
.nav-link:hover { background-color: var(--bg-card-hover); color: var(--text); }
.nav-link.active { background-color: var(--accent); color: #0f172a; font-weight: bold; }

/* ---------- صفحات ---------- */
.page { display: none; }
.page.active { display: block; }
.page-hint { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; line-height: 1.8; }

/* ---------- محتوا ---------- */
.content { flex: 1; padding: 24px; max-width: 1200px; width: 100%; margin: 0 auto; }

.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px; margin-bottom: 32px;
}
.stat-card {
  background-color: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; text-align: center;
}
.stat-card h2 { font-size: 2rem; color: var(--accent); margin-bottom: 6px; }
.stat-card p { font-size: 0.85rem; color: var(--text-muted); }

.section-header {
  margin-bottom: 16px;
  display: flex; justify-content: space-between; align-items: center;
}
.section-header h2 { font-size: 1.1rem; color: var(--text); }

.btn-secondary {
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 8px;
  background-color: transparent; color: var(--text-muted);
  cursor: pointer; font-size: 0.85rem;
}
.btn-secondary:hover { border-color: var(--accent-red); color: var(--accent-red); }

/* ---------- پنل شبیه‌ساز ---------- */
.sim-panel {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  background: linear-gradient(135deg, #16213a 0%, #101a30 100%);
  border: 1px dashed var(--accent);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 20px;
}
.sim-panel strong { color: var(--accent); display: block; margin-bottom: 6px; }
.sim-panel p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.7; max-width: 640px; }
.sim-panel button {
  padding: 10px 18px; border: none; border-radius: 8px;
  background-color: var(--accent); color: #0f172a;
  font-weight: bold; cursor: pointer; white-space: nowrap;
}
.sim-panel button:hover { background-color: #7dd3fc; }

/* ---------- حالت خالی ---------- */
.empty-state {
  text-align: center; padding: 60px 20px;
  background-color: var(--bg-card);
  border: 2px dashed var(--border); border-radius: 12px;
}
.empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 { color: var(--text); margin-bottom: 8px; }
.empty-state p {
  color: var(--text-muted); font-size: 0.9rem;
  max-width: 400px; margin: 0 auto; line-height: 1.8;
}

/* ---------- کارت‌های ماژول ---------- */
.modules-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.module-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.module-card.offline { opacity: 0.55; }

.module-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.module-icon { font-size: 1.6rem; }
.module-name { font-weight: bold; font-size: 0.95rem; }
.module-type { font-size: 0.78rem; color: var(--text-muted); }

.module-dot { margin-right: auto; width: 10px; height: 10px; border-radius: 50%; }
.module-dot.online {
  background-color: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}
.module-dot.offline { background-color: #64748b; }

.module-info > div {
  display: flex; justify-content: space-between;
  font-size: 0.82rem; padding: 3px 0;
  color: var(--text-muted);
}
.module-info code { color: var(--accent); font-size: 0.78rem; direction: ltr; unicode-bidi: embed; }
.module-info .value { color: var(--text); }

.module-actions { display: flex; gap: 8px; margin-top: 12px; }
.module-actions button {
  flex: 1; padding: 8px; border-radius: 8px;
  border: 1px solid var(--border);
  background-color: transparent; color: var(--text-muted);
  cursor: pointer; font-size: 0.85rem;
  transition: all 0.2s;
}
.btn-toggle.on { border-color: var(--accent-green); color: var(--accent-green); }
.btn-toggle:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-remove:hover { border-color: var(--accent-red); color: var(--accent-red); }

/* ---------- لاگ‌ها ---------- */
.log-list { display: flex; flex-direction: column; gap: 8px; }
.log-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-right: 3px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex; align-items: center; gap: 10px;
  font-size: 0.9rem;
}
.log-item.log-success { border-right-color: var(--accent-green); }
.log-item.log-warning { border-right-color: var(--accent-yellow); }
.log-item.log-error   { border-right-color: var(--accent-red); }
.log-time { color: var(--text-muted); font-size: 0.8rem; min-width: 70px; }
.log-msg  { color: var(--text); }
.log-empty {
  text-align: center; padding: 40px 20px;
  color: var(--text-muted);
  border: 2px dashed var(--border); border-radius: 12px;
}

/* ---------- تنظیمات ---------- */
.settings-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}
.settings-card h3 { font-size: 1rem; color: var(--accent); margin-bottom: 16px; }
.settings-card input {
  width: 100%; padding: 10px 14px; border-radius: 8px;
  border: 1px solid var(--border); background-color: var(--bg);
  color: var(--text); font-size: 0.95rem; margin-bottom: 12px;
  outline: none; text-align: center;
}
.settings-card input:focus { border-color: var(--accent); }
.settings-card button {
  width: 100%; padding: 10px; border: none; border-radius: 8px;
  background-color: var(--accent); color: #0f172a;
  font-size: 0.95rem; font-weight: bold; cursor: pointer;
}
.settings-card button:hover { background-color: #7dd3fc; }

.info-row {
  display: flex; justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.info-row:last-child { border-bottom: none; }
.info-row span:first-child { color: var(--text-muted); }
.info-row span:last-child { color: var(--text); }

.form-msg { font-size: 0.85rem; margin-top: 10px; text-align: center; display: none; }
.form-msg.ok    { display: block; color: var(--accent-green); }
.form-msg.error { display: block; color: var(--accent-red); }

/* ---------- پابرگ ---------- */
.footer {
  text-align: center; padding: 16px; font-size: 0.8rem;
  color: var(--text-muted); border-top: 1px solid var(--border);
  background-color: var(--bg-card);
}

/* ---------- ریسپانسیو ---------- */
@media (max-width: 600px) {
  .topbar { flex-direction: column; gap: 10px; text-align: center; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-card h2 { font-size: 1.4rem; }
  .sim-panel { flex-direction: column; text-align: center; }
}