/* === Theme vars === (NORMAL / default) */
/* === Theme vars === (NORMAL / green) */
:root {
  /* top-to-light page gradient (teal → mint) */
  --bg: linear-gradient(180deg, #0e6f62 0%, #1f8f73 14%, #e8f5ec 14%, #e8f5ec 100%);

  /* cards & text */
  --card:#ffffff;
  --text:#0b1220;         /* dark ink on light backgrounds */
  --border:#cfe7db;       /* minty border */
  --muted:#5a6b63;        /* soft gray-green for labels */

  /* accents & states */
  --accent:#1f8f73;       /* primary green (buttons/links) */
  --danger:#b6132c;       /* errors stay red for clarity */

  /* helpers */
  --card-hover:#f3faf6;   /* hover on buttons/cards */
  --chip:#e0f2ea;         /* “you” message bg */
  --chip-alt:#d2ecdf;     /* “server” message bg */
}

/* DARK override (a bit darker than your original) */
:root[data-theme="dark"] {
  --bg:#0d1117;
  --card:#161b22;
  --text:#e6edf3;
  --border:#30363d;
  --muted:#8b94a7;
  --accent:#7aa2f7;
  --danger:#f7768e;

  --card-hover:#1d2633;
  --chip:#0f1730;
  --chip-alt:#0c1a37;
}

/* LIGHT override */
:root[data-theme="light"] {
  --bg:#f6f8fa;
  --card:#ffffff;
  --text:#0b1220;
  --border:#d0d7de;
  --muted:#6a7687;
  --accent:#0b5ed7;
  --danger:#b6132c;

  --card-hover:#f0f4f8;
  --chip:#eef2ff;
  --chip-alt:#e7efff;
}

/* === Page layout === */
html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

.shell {
  min-height: 100%;
  display: flex;
  justify-content: center;
  padding: 12px;
  box-sizing: border-box;
}

.card {
  width: min(100%, 920px);
  min-height: calc(100vh - 24px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
}

/* === Header === */
header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
header h2 {
  margin: 0 0 4px 0;
  font-size: 16px;
  font-weight: 600;
}

/* === Controls (top & bottom) === */
.controls,
.footer-controls {
  display: flex;
  gap: 8px;
  padding: 10px;
  border-bottom: 1px solid var(--border);
}
.footer-controls {
  border-top: 1px solid var(--border);
  border-bottom: 0;
  margin-top: auto;
  align-items: flex-start;
  flex-wrap: wrap;
}
.footer-controls > div { min-width: 0; }

label { color: var(--muted); font-size: 12px; }

/* === Unified form styles === */
input[type="text"],
input[type="password"],
select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  outline: none;
  width: 100%;
  font-size: 14px;
}
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(122,162,247,0.28);
}

/* Checkbox (keep native but nicer spacing) */
.footer-controls .checkbox-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 22px;
  font-size: 12px;
}

/* Buttons */
button {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}
button:hover { background: var(--card-hover); }
button:disabled { opacity:.6; cursor: not-allowed; }

/* === Log (fixed size, scrollable, newest on top handled in JS) === */
.log {
  flex: 0 0 360px !important;
  height: 360px !important;
  overflow-y: auto !important;

  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  background: radial-gradient(1200px 500px at 20% -20%, rgba(122,162,247,0.07), transparent 60%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Messages */
.msg {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.35;
}
.msg.you    { background: var(--chip); }
.msg.server { background: var(--chip-alt); }
.msg.error  { background:#2b0e17; border-color:#5a1f32; color:#ffd4dc; }

/* === Floating theme switcher (shared) === */
.theme-switch {
  position: fixed;
  right: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  z-index: 9999;
  font-size: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.theme-switch select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  outline: none;
}
.theme-switch label {
  color: var(--muted);
  font-size: 12px;
}