.tool-page-head {
  margin-bottom: 28px;
}

.section-kicker {
  display: inline-block;
  padding: 8px 14px;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  border-radius: 999px;
  background: var(--card);
  font-weight: 900;
  margin-bottom: 14px;
}

.tool-page-head h1 {
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  line-height: 1;
}

.tool-page-head p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 760px;
}

/* tool layout */
.tool-shell {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: start;
}

.tool-main-card,
.tool-preview-card {
  background: var(--card);
  border: var(--border);
  box-shadow: var(--shadow);
  border-radius: 28px;
  padding: 28px;
}

.tool-main-card h2 {
  margin: 0 0 10px;
  font-size: 2rem;
}

.tool-subtext {
  margin: 0 0 22px;
  line-height: 1.7;
}

.field-label {
  display: block;
  font-weight: 800;
  margin: 0 0 10px;
}

.tool-form input {
  width: 100%;
  padding: 16px;
  margin-bottom: 18px;
  border: var(--border);
  border-radius: 16px;
  background: white;
  color: var(--text);
  font-size: 16px;
  box-shadow: var(--shadow-sm);
}

input:focus {
  outline: none;
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #111;
}

input[type="file"] {
  cursor: pointer;
}

input[type="file"]::file-selector-button {
  border: var(--border);
  background: var(--yellow);
  color: var(--text);
  padding: 10px 16px;
  margin-right: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  border-radius: 12px;
}

.buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.buttons button {
  flex: 1;
  min-height: 58px;
  padding: 16px;
  border: var(--border);
  border-radius: 16px;
  color: black;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  transition: .15s;
}

#previewBtn {
  background: var(--blue);
  box-shadow: var(--shadow-sm);
}

#downloadBtn {
  background: var(--green);
  box-shadow: var(--shadow-sm);
}

.buttons button:hover {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 #111;
}

.buttons button:active {
  transform: translate(6px, 6px);
  box-shadow: none;
}

/* pdf info */
#pdfInfo {
  display: none;
  margin-top: 24px;
  padding: 20px;
  background: #dff4ff;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  color: var(--text);
  overflow: hidden;
  border-radius: 18px;
}

.filename {
  width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: normal;
  margin-top: 8px;
  line-height: 1.6;
}

.info-row {
  margin-bottom: 12px;
}

.info-row strong {
  display: block;
  margin-bottom: 5px;
}

/* preview side */
.preview-card-top h3 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.preview-card-top p {
  margin: 0 0 18px;
  line-height: 1.7;
}

.canvas-wrap {
  background: var(--bg-alt);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  border-radius: 20px;
  padding: 18px;
}

#pdfCanvas {
  display: block;
  width: 100%;
  height: auto;
  background: white;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  border-radius: 18px;
  min-height: 200px;
}

.side-note {
  margin-top: 18px;
  background: var(--yellow);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  border-radius: 20px;
  padding: 18px;
}

.side-note h4 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.side-note ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.8;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .tool-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .tool-main-card,
  .tool-preview-card {
    padding: 20px;
  }
}

@media (max-width:700px){
  .buttons{
    flex-direction:column;
  }
}