* { box-sizing: border-box; }
body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f5f5f5; color: #222; }

/* Nav */
nav { background: #c00000; }
.nav-inner { max-width: 1050px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; }
.logo { font-size: 22px; font-weight: 900; letter-spacing: -1px; color: #fff; padding: 12px 20px 12px 0; margin-right: 8px; border-right: 1px solid rgba(255,255,255,0.3); }
.logo i { font-style: italic; }
nav a { color: #fff; text-decoration: none; padding: 12px 14px; font-size: 14px; display: inline-block; }
nav a:hover { background: rgba(255,255,255,0.15); }
nav a.active { font-weight: bold; text-decoration: underline; }
.nav-right { margin-left: auto; }

/* Layout */
.container { max-width: 1050px; margin: 24px auto; padding: 0 20px; }
.page-content { max-width: 1050px; margin: 16px auto; padding: 0 20px; }
h2 { font-size: 18px; color: #c00000; margin: 24px 0 10px; }

/* Tabulky */
table { width: 100%; border-collapse: collapse; background: #fff; margin-bottom: 24px; }
th, td { border: 1px solid #ddd; padding: 7px 10px; text-align: left; font-size: 14px; }
th { background: #c00000; color: #fff; font-weight: bold; }
tr:nth-child(even) td { background: #fafafa; }

/* Badges & stavy */
.badge { display: inline-block; padding: 2px 10px; border-radius: 10px; font-size: 13px; }
.badge-present { background: #d4edda; color: #155724; }
.badge-absent { background: #e9ecef; color: #555; }
.status-present { background: #d4edda !important; color: #155724; font-weight: bold; }
.status-absent { background: #e9ecef !important; color: #555; }

/* Meta řádek */
.meta { font-size: 13px; color: #777; margin-bottom: 12px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

/* Status row — synchronizace vlevo, terminál vpravo */
.status-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.status-row .meta { margin-bottom: 0; }

/* Terminal bar — dioda + restart tlačítka */
.terminal-bar { display: flex; align-items: center; gap: 10px; }
.dioda { display: inline-block; width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.dioda-on  { background: #28a745; box-shadow: 0 0 6px #28a745; }
.dioda-off { background: #dc3545; box-shadow: 0 0 6px #dc3545; }
#dioda-label { font-size: 13px; color: #555; }
.btn-restart { background: none; border: 1px solid #aaa; color: #555; padding: 2px 10px; font-size: 12px; cursor: pointer; border-radius: 3px; }
.btn-restart:hover { background: #eee; }
.btn-restart-rpi { border-color: #c00000; color: #c00000; }
.btn-restart-rpi:hover { background: #fff0f0; }

/* Filtr (history) */
.filter-form { background: #fff; border: 1px solid #ddd; padding: 16px 20px; margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.filter-form label { display: block; font-size: 13px; font-weight: bold; margin-bottom: 4px; }
.filter-form input, .filter-form select { padding: 6px 8px; border: 1px solid #ccc; font-size: 14px; }
.filter-form button { background: #c00000; color: #fff; border: none; padding: 8px 20px; cursor: pointer; font-size: 14px; }
.filter-form button:hover { background: #a00000; }
.btn-csv { display: inline-block; background: #555; color: #fff; text-decoration: none; padding: 8px 16px; font-size: 13px; }
.btn-csv:hover { background: #333; }

/* Uživatelé */
.add-form { background: #fff; border: 1px solid #ddd; padding: 16px 20px; margin-bottom: 20px; }
.add-form h3 { margin: 0 0 12px; font-size: 15px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 13px; font-weight: bold; }
.form-group input { padding: 6px 8px; border: 1px solid #ccc; font-size: 14px; width: 200px; }
.btn-add { background: #c00000; color: #fff; border: none; padding: 8px 20px; cursor: pointer; font-size: 14px; }
.btn-add:hover { background: #a00000; }
.btn-delete { background: none; border: 1px solid #c00000; color: #c00000; padding: 3px 12px; cursor: pointer; font-size: 13px; }
.btn-delete:hover { background: #c00000; color: #fff; }
.btn-edit { background: none; border: 1px solid #555; color: #555; padding: 3px 12px; cursor: pointer; font-size: 13px; text-decoration: none; display: inline-block; }
.btn-edit:hover { background: #555; color: #fff; }
.btn-save { background: #155724; color: #fff; border: none; padding: 3px 12px; cursor: pointer; font-size: 13px; }
.btn-save:hover { background: #0f3d18; }
.btn-cancel { background: none; border: 1px solid #555; color: #555; padding: 3px 12px; cursor: pointer; font-size: 13px; text-decoration: none; display: inline-block; }
.btn-cancel:hover { background: #555; color: #fff; }
.edit-input { padding: 4px 6px; border: 1px solid #aaa; font-size: 13px; width: 100%; }
tr.editing td { background: #fffbe6 !important; }
.alert { padding: 10px 16px; margin-bottom: 16px; border-radius: 2px; font-size: 14px; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.notice { background: #fff3cd; border: 1px solid #ffeeba; color: #856404; padding: 10px 16px; font-size: 13px; margin-bottom: 16px; }
.uid-cell { font-family: monospace; font-size: 13px; color: #555; }

/* Login */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: #fff; padding: 40px; border: 1px solid #ddd; width: 320px; }
.login-logo { color: #c00000; font-size: 28px; font-weight: 900; letter-spacing: -1px; margin-bottom: 24px; }
.login-logo i { font-style: italic; }
.login-box input[type=password] { width: 100%; padding: 8px; margin: 8px 0 16px; border: 1px solid #ccc; }
.login-box button { background: #c00000; color: #fff; border: none; padding: 10px 24px; cursor: pointer; font-size: 15px; width: 100%; }
.login-box button:hover { background: #a00000; }
.login-error { color: #c00000; font-size: 13px; margin-bottom: 10px; }

/* Dochazka – tisk */
@media print {
    nav { display: none; }
    .page-content { max-width: none; margin: 0; padding: 0; }
}