/* File: index.css */

/* Headings */
header h1 {
  margin: 0 0 var(--sp-2);
  font-size: var(--fs-2xl);
  line-height: var(--lh-tight);
  letter-spacing: .2px;
}

header p {
  margin: 0 0 var(--sp-5);
  color: var(--muted);
}

/* Card/chat */
.card {
  background: var(--box);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--sp-5);
  box-shadow: var(--shadow-md);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

#log {
  white-space: pre-wrap;
  min-height: 180px;
  max-height: 55vh;
  overflow: auto;
  margin-bottom: var(--sp-3);
  padding-right: 4px;
}

.bubble {
  padding: 10px 12px;
  border-radius: 12px;
  margin: 8px 0;
  line-height: 1.55;
  font-size: 15px;
  border: 1px solid var(--line);
}

.bubble b {
  font-weight: 600;
}

.bot { background: rgba(16, 185, 129, .08); }
.user { background: rgba(14, 165, 233, .08); }

/* Input stack */
.input-stack {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

label.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

textarea,
button {
  font-size: var(--control-font);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  padding: var(--control-pad-y) var(--control-pad-x);
  outline: none;
  transition: box-shadow .15s ease, border-color .15s ease;
  background: var(--bg); /* Ubah dari #fff0 */
  color: inherit;
}

textarea {
  resize: vertical;
  min-height: 72px;
  max-height: 240px;
}

textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, .25);
}

button {
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  min-height: 46px;
  font-weight: 700;
}

button[disabled] {
  opacity: .6;
  cursor: not-allowed;
}
.btnlink.primary:hover,
button:not([disabled]):hover {
  background-color: #0c87b8; /* Konsistensi hover */
}


.hint {
  margin-top: var(--sp-2);
  color: var(--muted);
  font-size: var(--fs-sm);
}

footer {
  margin-top: var(--sp-4);
  color: var(--muted);
  font-size: var(--fs-sm);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, .6);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  vertical-align: -3px;
  margin-right: 6px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Mobile tweaks */
@media (max-width: 720px) {
  header h1 { font-size: 22px; }
  #log { max-height: 50vh; }
  textarea { font-size: 17px; }
  button { font-size: 17px; }
}