:root {
  --bg: #101418;
  --panel: #1a2027;
  --border: #2c3540;
  --text: #d7dee6;
  --dim: #8a97a5;
  --accent: #3fa9f5;
  --error: #ff6b6b;
  --ok: #5fd38d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

header .title {
  font-weight: 600;
  letter-spacing: 0.03em;
}

#frame-info {
  flex: 1;
  text-align: center;
  font-variant-numeric: tabular-nums;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#frame-slot {
  color: var(--dim);
  font-size: 0.85em;
  margin-left: 0.5em;
}

#settings-btn {
  background: none;
  border: none;
  color: var(--dim);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.1rem 0.4rem;
}
#settings-btn:hover { color: var(--text); }

#image-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 0.5rem;
}

#frame {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
}

#placeholder {
  color: var(--dim);
}

#controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.75rem;
  background: var(--panel);
  border-top: 1px solid var(--border);
}

#controls button {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.55rem 0.9rem;
  font-size: 1rem;
  cursor: pointer;
  touch-action: manipulation;
}
#controls button:hover { border-color: var(--dim); }

#live-btn.active {
  color: #fff;
  background: #b3261e;
  border-color: #b3261e;
  font-weight: 700;
}

#scrub {
  flex: 1;
  accent-color: var(--accent);
  min-width: 0;
}

#status-bar {
  display: flex;
  gap: 1rem;
  padding: 0.35rem 0.75rem;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--dim);
  background: #0b0e11;
  border-top: 1px solid var(--border);
  min-height: 1.7em;
}

#status-text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#status-text.error { color: var(--error); }
#status-text.ok { color: var(--ok); }

#status-reqs { white-space: nowrap; }

/* ----- settings overlay ----- */

#settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10;
}
#settings-overlay[hidden] { display: none; }

#settings-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  width: 100%;
  max-width: 26rem;
  max-height: 90vh;
  overflow-y: auto;
}

#settings-panel h2 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

#settings-panel .hint {
  color: var(--dim);
  font-size: 0.82rem;
  margin: 0 0 1rem;
}

#settings-panel label {
  display: block;
  margin: 0.8rem 0 0.25rem;
  font-size: 0.85rem;
  color: var(--dim);
}

#settings-panel label.checkbox {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

#settings-panel input[type="url"],
#settings-panel input[type="password"],
#settings-panel input[type="text"],
#settings-panel input[type="number"] {
  width: 100%;
  padding: 0.55rem 0.6rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: ui-monospace, Consolas, monospace;
}

#settings-panel details {
  margin-top: 0.9rem;
}
#settings-panel summary {
  cursor: pointer;
  color: var(--dim);
  font-size: 0.85rem;
}

#settings-status {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  font-family: ui-monospace, Consolas, monospace;
  min-height: 1.2em;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
#settings-status.error { color: var(--error); }
#settings-status.ok { color: var(--ok); }

#settings-panel .buttons {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.1rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

#settings-panel .buttons button {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}

#settings-panel .buttons #set-save {
  background: var(--accent);
  border-color: var(--accent);
  color: #08131c;
  font-weight: 600;
}

@media (max-width: 520px) {
  header .title { display: none; }
  #controls { gap: 0.4rem; padding: 0.5rem; }
  #controls button { padding: 0.6rem 0.7rem; }
}