/* ============================================
   Palindrome Checker — Premium Responsive CSS
   ============================================ */

.pal-tool-wrap {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 0 24px;
  box-sizing: border-box;
}

.pal-tool-wrap * {
  box-sizing: border-box;
}

/* ── Input Section ────────────────────────────── */
.input-section {
  margin-bottom: 18px;
}

.input-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text, #1a202c);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.input-section textarea {
  width: 100%;
  padding: 13px 14px;
  font-size: 1rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  border-radius: 10px;
  border: 1.5px solid var(--gray-200, #e2e8f0);
  background: var(--white, #fff);
  resize: vertical;
  transition: border-color 0.2s;
  line-height: 1.5;
}

.input-section textarea:focus {
  outline: none;
  border-color: var(--accent, #094c46);
  box-shadow: 0 0 0 3px rgba(9, 76, 70, 0.1);
}

.info-note {
  font-size: 0.75rem;
  color: var(--text-muted, #718096);
  margin-top: 6px;
}

/* ── Button Group ─────────────────────────────── */
.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
  width: 100%;
}

.btn {
  flex: 1 1 auto;
  background: var(--gray-100, #edf2f7);
  border: none;
  padding: 12px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  text-align: center;
}

.btn-primary {
  background: var(--navy, #1a202c);
  color: var(--white, #fff);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.btn-primary:hover {
  background: var(--accent, #094c46);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--gray-200, #e2e8f0);
  color: var(--text, #1a202c);
}

.btn-secondary:hover {
  background: var(--gray-400, #a0aec0);
  color: var(--white, #fff);
  transform: translateY(-1px);
}

/* ── Result Panel ─────────────────────────────── */
.result-panel {
  background: var(--gray-50, #f8fafc);
  border-radius: 12px;
  padding: 16px 18px;
  border: 1px solid var(--gray-100, #edf2f7);
  width: 100%;
}

.result-title {
  font-weight: 700;
  color: var(--text-muted, #718096);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}

.result-content {
  font-size: 1rem;
  color: var(--text, #1a202c);
  word-break: break-word;
  line-height: 1.55;
}

.error-msg {
  color: #b91c1c;
  font-weight: 500;
}

.success-msg {
  color: #166534;
  font-weight: 600;
}

/* ── Hide default layout elements ─────────────── */
.tool-page .gen-heading {
  position: absolute;
  left: -9999px;
}

/* ── Responsive: Tablet ≤768px ────────────────── */
@media (max-width: 768px) {
  .button-group {
    flex-direction: column !important;
    gap: 8px !important;
  }

  .btn {
    width: 100% !important;
    border-radius: 10px !important;
    font-size: 15px !important;
    padding: 13px 14px !important;
    white-space: normal !important;
  }
}

/* ── Responsive: Mobile ≤600px ────────────────── */
@media (max-width: 600px) {
  .input-section textarea {
    font-size: 16px !important;
    border-radius: 10px !important;
    padding: 12px !important;
  }

  .result-content {
    font-size: 0.92rem !important;
  }
}