frontend/src/components/InputBar.css

.input-bar {
  flex-shrink: 0;
  padding: 10px 20px 22px;
  background: linear-gradient(to top, rgba(3,4,12,0.99) 60%, transparent);
  position: relative;
  z-index: 10;
}

.input-bar__inner {
  max-width: 760px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(12,15,28,0.98) 0%, rgba(8,10,20,0.98) 100%);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(59,142,255,0.04) inset;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.input-bar__inner::before {
  content: '';
  position: absolute;
  top: 0; left: 8%; right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,142,255,0.5), rgba(0,229,255,0.7), rgba(155,109,255,0.5), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.input-bar__inner:focus-within::before { opacity: 1; }

.input-bar__inner:focus-within {
  border-color: rgba(59,142,255,0.45);
  box-shadow: var(--shadow-lg),
    0 0 0 3px rgba(59,142,255,0.07),
    0 0 32px rgba(59,142,255,0.12);
}

.input-bar__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px 0;
}

.input-bar__toolbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.input-bar__select {
  background: none;
  border: none;
  color: var(--accent-blue-bright);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  padding: 2px 20px 2px 0;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='rgba(59,142,255,0.5)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
}

.input-bar__select option { background: #0d1020; color: white; }
.input-bar__select:hover { color: var(--accent-cyan); }

.input-bar__divider {
  width: 1px;
  height: 14px;
  background: var(--border-subtle);
}

.input-bar__param {
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-bar__param-label {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.input-bar__param-input {
  width: 44px;
  background: rgba(59,142,255,0.08);
  border: 1px solid rgba(59,142,255,0.18);
  border-radius: 6px;
  padding: 3px 6px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
  outline: none;
  transition: all var(--transition-fast);
}

.input-bar__param-input:focus {
  border-color: rgba(0,229,255,0.5);
  box-shadow: 0 0 8px rgba(0,229,255,0.18);
}

.input-bar__param-input::-webkit-outer-spin-button,
.input-bar__param-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.input-bar__hint {
  font-size: 10.5px;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
  display: none;
}

@media (min-width: 600px) { .input-bar__hint { display: block; } }

.input-bar__compose {
  display: flex;
  align-items: flex-end;
  gap: 0;
  padding: 8px 8px 10px 16px;
}

.input-bar__textarea {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  resize: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.62;
  padding: 6px 0;
  max-height: 160px;
  overflow-y: auto;
  letter-spacing: -0.01em;
}

.input-bar__textarea::placeholder { color: var(--text-tertiary); }
.input-bar__textarea:disabled { opacity: 0.4; }

.input-bar__send {
  width: 38px;
  height: 38px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  cursor: not-allowed;
  transition: all var(--transition-base);
  flex-shrink: 0;
  margin-bottom: 1px;
  position: relative;
  overflow: hidden;
}

.input-bar__send--active {
  background: linear-gradient(135deg, var(--accent-blue) 0%, #7040FF 100%);
  border-color: transparent;
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(59,142,255,0.5), 0 0 0 1px rgba(255,255,255,0.12) inset;
}

.input-bar__send--active::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.input-bar__send--active:hover::before { opacity: 1; }
.input-bar__send--active:hover {
  transform: scale(1.07) translateY(-1px);
  box-shadow: 0 6px 26px rgba(59,142,255,0.65), 0 0 0 1px rgba(255,255,255,0.15) inset;
}

.input-bar__send--active:active { transform: scale(0.96); }

.input-bar__send--loading {
  cursor: default;
  background: var(--accent-blue-soft);
  border-color: rgba(59,142,255,0.25);
  color: var(--accent-blue);
}

.input-bar__spinner { animation: spin 0.85s linear infinite; }