:root {
  --bg: #0f1115;
  --bg-elevated: #1a1d24;
  --border: #2a2e38;
  --text: #e8e9ed;
  --text-dim: #8b8f9c;
  --accent: #5b8def;
  --accent-hover: #4a7adf;
  --green: #4caf7d;
  --red: #e85d5d;
  --yellow: #e8b85d;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

.hidden { display: none !important; }

/* --- Login --- */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 340px;
  text-align: center;
}

.logo { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.subtitle { color: var(--text-dim); font-size: 14px; margin-bottom: 24px; }

.login-box input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  margin-bottom: 12px;
}
.login-box input:focus { outline: 2px solid var(--accent); }

.login-box button {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.login-box button:hover { background: var(--accent-hover); }

.error { color: var(--red); font-size: 13px; margin-top: 12px; min-height: 16px; }

/* --- Header --- */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.header-left { display: flex; align-items: center; gap: 10px; }

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  display: inline-block;
}
.status-dot.online { background: var(--green); }
.status-dot.offline { background: var(--red); }
.status-text { font-size: 13px; color: var(--text-dim); }

nav { display: flex; gap: 4px; }

.nav-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.nav-btn:hover { background: var(--border); color: var(--text); }
.nav-btn.active { background: var(--accent); color: white; }

.logout-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
}
.logout-btn:hover { border-color: var(--red); color: var(--red); }

.header-right { display: flex; align-items: center; gap: 10px; }

.run-now-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
}
.run-now-btn:hover { background: var(--accent); color: white; }
.run-now-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.panel-header h3 { margin-bottom: 0; }

.secondary.small {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 6px;
}

.category-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 12px;
}
.category-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.category-name-input {
  flex: 1;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.category-delete-btn {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
}
.category-delete-btn:hover { border-color: var(--red); color: var(--red); }
.category-desc-textarea {
  width: 100%;
  min-height: 70px;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
  font-family: inherit;
}

/* --- Main --- */
main { padding: 32px; max-width: 1100px; margin: 0 auto; }

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.card-value { font-size: 32px; font-weight: 700; color: var(--accent); }
.card-label { font-size: 13px; color: var(--text-dim); margin-top: 6px; }

.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.panel.full { grid-column: 1 / -1; }

.panel h3 { font-size: 15px; margin-bottom: 16px; font-weight: 600; }

.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
}
.bar-label { width: 110px; flex-shrink: 0; color: var(--text-dim); }
.bar-track {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill { height: 100%; background: var(--accent); border-radius: 4px; }
.bar-count { width: 36px; text-align: right; flex-shrink: 0; }

/* --- Table --- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left;
  padding: 10px 8px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}
td { padding: 10px 8px; border-bottom: 1px solid var(--border); }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}
.badge-Archiv { background: rgba(232,93,93,0.15); color: var(--red); }
.badge-Platby { background: rgba(232,184,93,0.15); color: var(--yellow); }
.badge-Osobní { background: rgba(91,141,239,0.15); color: var(--accent); }
.badge-Grafika { background: rgba(76,175,125,0.15); color: var(--green); }
.badge-default { background: var(--border); color: var(--text); }

.hint { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }

#prompt-textarea {
  width: 100%;
  min-height: 420px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  padding: 16px;
  resize: vertical;
}

.prompt-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.prompt-actions button {
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
#save-prompt-btn { background: var(--accent); color: white; }
#save-prompt-btn:hover { background: var(--accent-hover); }
.secondary { background: var(--border); color: var(--text); }
.secondary:hover { background: #353a47; }

#prompt-status { font-size: 13px; color: var(--green); }

/* --- Mobile responsiveness --- */
@media (max-width: 700px) {
  header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px;
  }
  .header-left { justify-content: center; }
  nav { justify-content: center; flex-wrap: wrap; }
  .header-right { justify-content: center; }
  main { padding: 16px; }
  .stat-cards { grid-template-columns: 1fr; }
  .panels { grid-template-columns: 1fr; }
  table { font-size: 12px; }
  th, td { padding: 8px 4px; }
  .login-box { width: 90%; max-width: 320px; }
}