/* RC-Floor-FEA — style.css  (Ahmed Attia Drar brand theme: navy + gold) */
@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Inter:wght@400;500;600;700&display=swap");
:root {
  --bg: #0e2238;
  --panel: #14304d;
  --panel2: #1b3f63;
  --line: #26496e;
  --text: #e6edf5;
  --muted: #9fb1c4;
  --accent: #c9a227;
  --accent2: #e3c563;
  --warn: #ffb454;
  --err: #ff6b6b;
  font-size: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text);
  height: 100vh; display: flex; flex-direction: column; overflow: hidden;
}

/* ---------- top bar ---------- */
#topbar {
  display: flex; align-items: center; gap: 14px;
  background: var(--panel); border-bottom: 1px solid var(--line);
  padding: 6px 12px; flex-wrap: wrap;
}
.brand { font-family: "Fraunces", Georgia, serif; font-weight: 700; font-size: 17px; color: var(--accent); margin-right: 6px; }
.brand .ver { font-family: "Inter", sans-serif; color: var(--muted); font-weight: 400; font-size: 11px; }
.site-back { font-size: 12px; color: var(--muted); text-decoration: none; padding: 4px 9px; border: 1px solid var(--line); border-radius: 5px; margin-right: 4px; }
.site-back:hover { border-color: var(--accent); color: var(--accent2); }
.site-home { margin-left: auto; color: var(--accent2); text-decoration: none; font-size: 12.5px; font-weight: 600;
  border: 1px solid rgba(227,197,99,.5); padding: 6px 16px; border-radius: 999px; white-space: nowrap; transition: background .2s, color .2s; }
.site-home:hover { background: var(--accent2); color: var(--bg); }
.tb-group { display: flex; gap: 4px; align-items: center; }
button {
  background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 5px; padding: 5px 11px; cursor: pointer; font-size: 13px;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .4; cursor: default; }
button.accent2 { border-color: var(--accent2); color: var(--accent2); }
.workflow .step { font-weight: 600; }
.workflow .step:not(:disabled) { border-color: var(--accent); color: var(--accent); }
select {
  background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 5px; padding: 5px 6px; font-size: 13px;
}

/* ---------- layout ---------- */
#main { flex: 1; display: flex; min-height: 0; }

#palette {
  width: 64px; background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 3px; padding: 8px 6px; align-items: stretch;
}
#palette hr { border: none; border-top: 1px solid var(--line); margin: 6px 0; }
#palette button {
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 6px 2px; font-size: 16px; line-height: 1.1;
}
#palette button span { font-size: 9.5px; color: var(--muted); }
#palette button.active { background: #14406b; border-color: var(--accent); }
#palette button.active span { color: var(--text); }
#palette button.on { border-color: var(--accent2); }

#canvasWrap { flex: 1; position: relative; min-width: 0; background: #14161a; }
#cv { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }

#statusbar {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; gap: 24px; padding: 4px 12px;
  background: rgba(30,33,38,.92); border-top: 1px solid var(--line);
  font-size: 12px; color: var(--muted);
}
#coords { min-width: 160px; color: var(--text); font-family: Consolas, monospace; }
#meshInfo { margin-left: auto; }

#legend {
  position: absolute; right: 14px; top: 12px; display: none;
  background: rgba(30,33,38,.92); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 10px; font-size: 11px; font-family: Consolas, monospace;
}
#legend .swatch { display: inline-block; width: 30px; height: 10px; margin-right: 6px; vertical-align: middle; }

/* ---------- sidebar ---------- */
#sidebar {
  width: 300px; background: var(--panel); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; min-height: 0;
}
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tab {
  flex: 1; border: none; border-radius: 0; background: none; padding: 8px;
  color: var(--muted); border-bottom: 2px solid transparent;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tabpage { display: none; padding: 10px; overflow-y: auto; flex: 1; }
.tabpage.active { display: block; }

.pgroup { margin-bottom: 14px; }
.pgroup h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .5px;
  color: var(--accent); margin-bottom: 6px; border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
}
.prow { display: flex; align-items: center; gap: 6px; margin-bottom: 5px; }
.prow label { flex: 0 0 118px; font-size: 12px; color: var(--muted); }
.prow input, .prow select {
  flex: 1; min-width: 0; background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 4px; padding: 4px 6px; font-size: 12.5px;
}
.prow .unit { flex: 0 0 42px; font-size: 11px; color: var(--muted); }
.pbtn { width: 100%; margin-top: 4px; }
.note { font-size: 11.5px; color: var(--muted); line-height: 1.45; margin: 6px 0; }
.ok  { color: var(--accent2); }
.bad { color: var(--err); }
.warn { color: var(--warn); }

#logBox {
  font-family: Consolas, monospace; font-size: 11.5px; white-space: pre-wrap;
  color: #a8e5a2;
}
table.mini { width: 100%; border-collapse: collapse; font-size: 11.5px; margin: 4px 0; }
table.mini th, table.mini td { border: 1px solid var(--line); padding: 3px 5px; text-align: right; }
table.mini th { background: var(--panel2); color: var(--muted); font-weight: 600; }
table.mini td:first-child, table.mini th:first-child { text-align: left; }