* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f4f6f8;
  color: #1f2933;
}

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box {
  background: #fff; padding: 40px; border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08); width: 320px;
}
.login-box h1 { margin-top: 0; font-size: 20px; text-align: center; }
.login-box label { display: block; margin-top: 14px; font-size: 13px; color: #52606d; }
.login-box input { width: 100%; padding: 10px; margin-top: 6px; border: 1px solid #d9e2ec; border-radius: 6px; }
.login-box button {
  width: 100%; margin-top: 22px; padding: 11px; background: #2563eb; color: #fff;
  border: none; border-radius: 6px; font-size: 15px; cursor: pointer;
}
.error { color: #dc2626; font-size: 14px; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: #111827; color: #e5e7eb; padding: 20px 0; flex-shrink: 0;
}
.sidebar h2 { font-size: 16px; padding: 0 20px 20px; margin: 0; }
.sidebar a {
  display: block; padding: 12px 20px; color: #cbd5e1; text-decoration: none; font-size: 14px;
}
.sidebar a:hover { background: #1f2937; color: #fff; }
.sidebar a.logout { margin-top: 30px; color: #f87171; }
.content { flex: 1; padding: 30px 40px; }

/* Cards */
.cards { display: flex; flex-wrap: wrap; gap: 16px; }
.card {
  background: #fff; border-radius: 8px; padding: 18px 22px; min-width: 200px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06); display: flex; flex-direction: column; gap: 6px;
}
.card span { font-size: 13px; color: #6b7280; }
.card strong { font-size: 22px; }
.card.highlight strong { color: #dc2626; }

/* Table */
.table { width: 100%; border-collapse: collapse; background: #fff; margin-top: 16px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid #e5e7eb; text-align: left; font-size: 13px; }
.table th { background: #f9fafb; }
.badge { padding: 3px 8px; border-radius: 12px; font-size: 11px; color: #fff; }
.badge-pending { background: #d97706; }
.badge-completed { background: #16a34a; }
.badge-rejected { background: #dc2626; }

.btn-approve { background: #16a34a; color: #fff; border: none; padding: 6px 10px; border-radius: 5px; cursor: pointer; }
.btn-reject { background: #dc2626; color: #fff; border: none; padding: 6px 10px; border-radius: 5px; cursor: pointer; margin-top: 4px; }
.reason-input { padding: 5px; border-radius: 5px; border: 1px solid #d9e2ec; margin-right: 4px; width: 140px; }

.tabs { margin: 16px 0; }
.tabs a { padding: 8px 14px; margin-right: 6px; text-decoration: none; color: #374151; background: #e5e7eb; border-radius: 6px; font-size: 13px; }
.tabs a.active { background: #2563eb; color: #fff; }

.flash { background: #dcfce7; color: #166534; padding: 10px 14px; border-radius: 6px; }
.note { color: #6b7280; font-size: 13px; }

.search-form { margin: 16px 0; }
.search-form input { padding: 8px; width: 300px; border: 1px solid #d9e2ec; border-radius: 6px; }
.search-form button { padding: 8px 14px; border-radius: 6px; border: none; background: #2563eb; color: #fff; cursor: pointer; }

/* Settings form */
.settings-form fieldset { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 20px; padding: 16px 20px; }
.settings-form legend { font-weight: 600; padding: 0 6px; }
.settings-form label { display: block; margin-top: 12px; font-size: 13px; color: #52606d; }
.settings-form input, .settings-form textarea { width: 100%; max-width: 480px; padding: 8px; margin-top: 4px; border: 1px solid #d9e2ec; border-radius: 6px; }
.settings-form button { margin-top: 10px; padding: 10px 18px; background: #2563eb; color: #fff; border: none; border-radius: 6px; cursor: pointer; }

/* Chat */
.chat-layout { display: flex; gap: 20px; margin-top: 16px; }
.chat-list { width: 260px; background: #fff; border-radius: 8px; padding: 10px; height: 70vh; overflow-y: auto; }
.chat-item { display: block; padding: 10px; border-radius: 6px; text-decoration: none; color: #1f2933; margin-bottom: 4px; }
.chat-item small { display: block; color: #9ca3af; }
.chat-item.active, .chat-item:hover { background: #eff6ff; }
.chat-thread { flex: 1; background: #fff; border-radius: 8px; padding: 16px; height: 70vh; display: flex; flex-direction: column; }
.bubble { max-width: 70%; padding: 8px 12px; border-radius: 8px; margin-bottom: 8px; font-size: 14px; }
.bubble.from-user { background: #f3f4f6; align-self: flex-start; }
.bubble.from-admin { background: #dbeafe; align-self: flex-end; margin-left: auto; }
.bubble small { display: block; color: #9ca3af; font-size: 10px; margin-top: 4px; }
.chat-reply-form { margin-top: auto; display: flex; gap: 8px; }
.chat-reply-form textarea { flex: 1; padding: 8px; border-radius: 6px; border: 1px solid #d9e2ec; }
.chat-reply-form button { padding: 0 18px; background: #2563eb; color: #fff; border: none; border-radius: 6px; cursor: pointer; }