/* Page Setup */
html {
  scroll-behavior: smooth;
}

button, input {
  font-family: inherit;
}

/* Page Heading */
.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;
}

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;
}

#lockBtn {
    width: 100%;
    min-height: 58px;
    padding: 16px;
    border: var(--border);
    border-radius: 16px;
    background: var(--yellow);
    color: #111;
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: .15s;
}

#lockBtn:hover {
    transform: translate(4px, 4px);
}

#lockBtn:active {
    transform: translate(6px, 6px);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Password Box */
.password-box {
  position: relative;
}

.password-box input {
  padding-right: 50px;
}

.eyebutton {
  position: absolute;
  right: 12px;
  top: 40%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
}

/* Preview Section */
.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;
  margin-bottom: 18px;
}

#previewPlaceholder {
  text-align: center;
  padding: 40px 20px;
  font-weight: 700;
  opacity: 0.6;
}

.side-note {
  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;
}

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