/* ===========================================================================
   SB-Chat — Gruvbox theme.

   Palette and terminal treatment lifted from the project's `spt-gruvbox` skin:
   square corners (--radius: 0), a monospace UI font, 1px accent borders on the
   chrome, uppercase controls and a subtle scanline over the content area.
   =========================================================================== */

:root,
[data-theme="gruvbox"] {
  /* Core tokens — identical values to the spt-gruvbox skin. */
  --primary: #fabd2f;
  --primary-hover: #fcd050;
  --bg: #1d2021;
  --bg-elevated: #282828;
  --surface: #3c3836;
  --surface-hover: #504945;
  --text: #ebdbb2;
  --text-secondary: #bdae93;
  --text-muted: #7c6f64;
  --sidebar-bg: #141617;
  --panel-bg: #282828;
  --border: #3c3836;
  --accent-gradient: linear-gradient(135deg, #fb4934, #fabd2f);

  /* Full gruvbox accent ramp, used for roles, presence and syntax. */
  --gb-red: #fb4934;
  --gb-green: #b8bb26;
  --gb-yellow: #fabd2f;
  --gb-blue: #83a598;
  --gb-purple: #d3869b;
  --gb-aqua: #8ec07c;
  --gb-orange: #fe8019;
  --gb-gray: #928374;
  --gb-bg3: #665c54;
  --gb-bg4: #7c6f64;

  --radius: 0px;
  --radius-lg: 0px;
  --transition: 0.15s ease;
  --font: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 'Source Code Pro',
          'Consolas', 'Monaco', monospace;

  --rail-width: 72px;
  --sidebar-width: 248px;
  --members-width: 240px;
  --header-height: 48px;
}

/* Softer daytime variant of the same palette (gruvbox light). */
[data-theme="gruvbox-light"] {
  --primary: #b57614;
  --primary-hover: #af3a03;
  --bg: #fbf1c7;
  --bg-elevated: #f2e5bc;
  --surface: #ebdbb2;
  --surface-hover: #d5c4a1;
  --text: #3c3836;
  --text-secondary: #504945;
  --text-muted: #7c6f64;
  --sidebar-bg: #ebdbb2;
  --panel-bg: #f2e5bc;
  --border: #d5c4a1;
  --gb-red: #9d0006;
  --gb-green: #79740e;
  --gb-yellow: #b57614;
  --gb-blue: #076678;
  --gb-purple: #8f3f71;
  --gb-aqua: #427b58;
  --gb-orange: #af3a03;
  --gb-gray: #7c6f64;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: var(--gb-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-hover); }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

::selection { background: var(--primary); color: var(--bg); }

:focus-visible { outline: 1px solid var(--primary); outline-offset: 1px; }

/* --- terminal-flavoured primitives --------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition);
  white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--border); color: var(--text); }

.btn-primary { border-color: var(--primary); color: var(--primary); }
.btn-primary:hover { background: var(--primary); color: var(--bg); }

.btn-danger { border-color: var(--gb-red); color: var(--gb-red); }
.btn-danger:hover { background: var(--gb-red); color: var(--bg); }

.btn-ghost { border-color: transparent; color: var(--text-secondary); }
.btn-ghost:hover { border-color: transparent; color: var(--primary); background: var(--surface); }

.btn-sm { padding: 5px 10px; font-size: 11px; letter-spacing: 0.5px; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition),
              background var(--transition);
  flex-shrink: 0;
}
.icon-btn:hover { color: var(--primary); border-color: var(--border); }
.icon-btn.active { color: var(--primary); border-color: var(--primary); }

.input, .textarea, select.input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
}
.input:focus, .textarea:focus { border-color: var(--primary); }
.input::placeholder, .textarea::placeholder { color: var(--text-muted); }
.textarea { resize: vertical; min-height: 80px; }

.field { margin-bottom: 16px; }
.field > label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.field-hint { margin-top: 6px; font-size: 11px; color: var(--text-muted); }

.divider { height: 1px; background: var(--border); margin: 16px 0; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 7px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: 1px solid currentColor;
}
.tag-owner { color: var(--gb-yellow); }
.tag-admin { color: var(--gb-red); }
.tag-moderator { color: var(--gb-aqua); }
.tag-member { color: var(--text-muted); }
.tag-bot { color: var(--gb-purple); }

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--surface);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.muted { color: var(--text-muted); }
.dim { color: var(--text-secondary); }
.mono-caps {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
}