:root {
  --bg: #0e0f12;
  --panel: #1a1d24;
  --card: #252932;
  --border: #3a404c;
  --text: #f4f4f8;
  --muted: #9aa3b2;
  --accent: #e8a838;
  --ok: #50c878;
  --danger: #dc5050;
  --taken: #4a5568;
  --free: #2a2f3a;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

code { font-family: Consolas, monospace; font-size: 0.9em; color: var(--accent); }

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.brand h1 { margin: 0; font-size: 1.5rem; }
.brand h1 span { color: var(--accent); }
.tag { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.85rem; }
.target-box { text-align: end; }
.lang-box { display: flex; flex-direction: column; gap: 0.25rem; }
.lang-select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font-size: 0.9rem;
}
.cmd-box {
  background: #12141a;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.65rem;
  font-family: Consolas, monospace;
  font-size: 0.72rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0.5rem 0;
}
html[dir="rtl"] .panel { border-right: none; border-left: 1px solid var(--border); }
html[dir="rtl"] .target-box { text-align: start; }
.lbl { display: block; font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

.sections {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.sec-btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
.sec-btn.active, .sec-btn:hover { border-color: var(--accent); color: var(--accent); }

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr;
  gap: 0;
  min-height: 0;
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  padding: 1rem;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--panel);
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.card h2 { margin: 0 0 0.5rem; font-size: 1rem; color: var(--accent); }
.hint { color: var(--muted); font-size: 0.82rem; line-height: 1.45; }
.hint.small { font-size: 0.75rem; margin-top: 0.5rem; }
.stats { font-size: 1.1rem; font-weight: 700; }

input[type="text"] {
  width: 100%;
  padding: 0.55rem 0.65rem;
  margin: 0.5rem 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #1e222a;
  color: var(--text);
  font-family: Consolas, monospace;
}

.btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #111; border-color: var(--accent); }
.btn.block { display: block; width: 100%; margin-top: 0.5rem; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 0.5rem 0; }

.my-slot { font-family: Consolas, monospace; font-size: 0.85rem; color: var(--ok); min-height: 2.5em; }

.legend ul { list-style: none; padding: 0; margin: 0; }
.legend li { display: flex; align-items: center; gap: 0.5rem; margin: 0.35rem 0; font-size: 0.85rem; }
.swatch { width: 14px; height: 14px; border-radius: 2px; display: inline-block; }
.swatch.free { background: var(--free); }
.swatch.mine { background: #3d6eb5; }
.swatch.taken { background: var(--taken); }
.swatch.done { background: var(--ok); }
.swatch.active { background: var(--accent); }

.map-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0.75rem;
}
.map-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
#section-title { font-weight: 700; color: var(--accent); min-width: 6rem; }
#zoom-label { min-width: 5rem; }

.viewport {
  flex: 1;
  min-height: 420px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  background: #12141a;
  cursor: grab;
}
.viewport.panning { cursor: grabbing; }
#grid-canvas { display: block; transform-origin: 0 0; }

.hover-info {
  margin: 0.5rem 0 0;
  font-family: Consolas, monospace;
  font-size: 0.8rem;
  color: var(--muted);
  min-height: 1.2em;
}

footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}