/* === Variables === */
:root {
  --primary: #128C7E;
  --primary-light: #25D366;
  --primary-dark: #075E54;
  --bg: #f0f2f5;
  --card: #ffffff;
  --text: #303030;
  --text-light: #667781;
  --border: #e0e0e0;
  --success: #25D366;
  --warning: #f0ad4e;
  --danger: #ea0038;
  --sidebar-w: 240px;
  --radius: 10px;
}

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

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

/* === Login Page === */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.login-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 40px;
  width: 400px;
  max-width: 90vw;
  box-shadow: 0 10px 40px rgba(0,0,0,.2);
}

.login-logo {
  text-align: center;
  color: var(--primary);
  font-size: 2rem;
  margin-bottom: 4px;
}

.login-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 24px;
  font-size: .9rem;
}

.switch-text {
  text-align: center;
  margin-top: 16px;
  font-size: .85rem;
  color: var(--text-light);
}

.switch-text a { color: var(--primary); text-decoration: none; font-weight: 600; }

.error-msg {
  background: #fef2f2;
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 6px;
  margin-top: 14px;
  font-size: .85rem;
  text-align: center;
}

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

.sidebar {
  width: var(--sidebar-w);
  background: var(--primary-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
}

.logo {
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.sidebar nav { flex: 1; padding: 12px 0; }

.nav-item {
  display: block;
  padding: 12px 20px;
  color: rgba(255,255,255,.7);
  text-decoration: none;
  transition: all .2s;
  border-right: 3px solid transparent;
}

.nav-item:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-item.active { background: rgba(255,255,255,.12); color: #fff; border-right-color: var(--primary-light); }

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sidebar-user { font-size: .8rem; opacity: .8; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.main {
  flex: 1;
  margin-right: var(--sidebar-w);
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--card);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar h1 { font-size: 1.2rem; }

.content { padding: 24px; flex: 1; }

.section { display: none; }
.section.active { display: block; }

/* === Cards === */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}

.card h3 { margin-bottom: 16px; font-size: 1rem; color: var(--primary-dark); }

/* === Stats === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  border-top: 3px solid var(--primary);
}

.stat-card.success { border-top-color: var(--success); }
.stat-card.warning { border-top-color: var(--warning); }
.stat-card.danger { border-top-color: var(--danger); }
.stat-number { font-size: 2rem; font-weight: 700; }
.stat-label { color: var(--text-light); font-size: .85rem; margin-top: 4px; }

/* === Forms === */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: .9rem; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  font-family: inherit;
  direction: rtl;
  transition: border-color .2s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(18,140,126,.12);
}

textarea { resize: vertical; }

.btn-row { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }

.phone-count { margin-top: 8px; font-size: .85rem; color: var(--text-light); }
.hint { font-size: .8rem; color: var(--text-light); margin-top: 6px; margin-bottom: 8px; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: .9rem;
  font-family: inherit;
  cursor: pointer;
  transition: all .2s;
  gap: 6px;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: .9; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 12px; font-size: .8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn-block { width: 100%; }

/* === Table === */
.table-wrapper { overflow-x: auto; }

.table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.table th { background: var(--bg); padding: 10px 12px; text-align: right; font-weight: 600; white-space: nowrap; }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table tr:hover td { background: #f8f9fa; }

/* === Badges === */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
}

.badge-success { background: #e6f9ef; color: #0d7a3e; }
.badge-warning { background: #fff8e1; color: #8a6d00; }
.badge-danger { background: #fef2f2; color: #c0392b; }
.badge-info { background: #e8f4fd; color: #1565c0; }

.status-pending { color: var(--warning); }
.status-sending { color: var(--primary); }
.status-sent { color: var(--success); }
.status-failed { color: var(--danger); }

/* === Section Header === */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.section-header h3 { margin-bottom: 0; }
.filters { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filters select { width: auto; padding: 6px 12px; font-size: .8rem; }

/* === API Key === */
.api-key-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  padding: 10px 14px;
  border-radius: 8px;
  margin-top: 8px;
}

.api-key-row code { flex: 1; font-size: .85rem; word-break: break-all; }

/* === Pagination === */
.pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
}

.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* === Groups Grid === */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.group-card {
  background: var(--bg);
  border-radius: 8px;
  padding: 14px;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid transparent;
  position: relative;
}

.group-card:hover { border-color: var(--primary); }
.group-card.active { border-color: var(--primary); background: #e8f5e9; }

.group-card .group-name { font-weight: 600; font-size: .95rem; margin-bottom: 4px; }
.group-card .group-count { font-size: .8rem; color: var(--text-light); }
.group-card .group-actions {
  position: absolute;
  top: 8px;
  left: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity .2s;
}
.group-card:hover .group-actions { opacity: 1; }
.group-card .group-actions button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 4px;
}
.group-card .group-actions button:hover { background: rgba(0,0,0,.08); }

.bulk-actions { display: none; }
.bulk-actions.show { display: flex !important; }

/* === Responsive === */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar .logo h2, .sidebar .nav-item, .sidebar-footer { font-size: .7rem; }
  .main { margin-right: 60px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}