.tool-hero {
    padding: 44px 0 8px;
}

.crumb {
    font-size: 13px;
    color: var(--muted);
    margin: 0 0 14px;
}

.crumb a {
    text-decoration: none;
    color: var(--muted);
}

.crumb a:hover {
    color: var(--ink);
}

.tool-sub {
    font-size: 16px;
    color: var(--muted);
    max-width: 60ch;
    margin: 0;
}

main {
    padding-bottom: 60px;
}

/* Source tabs: HTML file / Website URL / Paste HTML code */
.src-tabs {
    display: flex;
    gap: 8px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.src-tab {
    border: 1px solid var(--line);
    background: var(--paper-raise);
    padding: 10px 18px;
    border-radius: 9px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    font-family: inherit;
    color: var(--ink-soft);
}

.src-tab.active {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}

.src-panel {
    display: none;
}

.src-panel.on {
    display: block;
}

/* Upload dropzone (file source) */
.dropzone {
    margin-top: 16px;
    border: 1.5px dashed var(--line);
    border-radius: 14px;
    background: var(--paper-raise);
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}

.dropzone.drag {
    border-color: var(--teal);
    background: var(--tag-bg);
}

.dropzone .dz-icon {
    font-size: 30px;
    margin-bottom: 10px;
}

.dropzone h3 {
    margin: 0 0 6px;
    font-size: 17px;
}

.dropzone p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.dropzone input[type="file"] {
    display: none;
}

/* Selected-file row (replaces dropzone once a file is chosen) */
.file-card {
    display: none;
    margin-top: 16px;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    background: var(--paper-raise);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 18px 22px;
}

.file-card.on {
    display: flex;
}

.file-card .fc-info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.file-card .fc-icon {
    font-size: 26px;
    flex-shrink: 0;
}

.file-card .fc-name {
    font-weight: 700;
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 46ch;
}

.file-card .fc-size {
    font-size: 13px;
    color: var(--muted);
    margin-top: 2px;
}

.file-card .fc-remove {
    background: none;
    border: 1px solid var(--line);
    color: var(--ink-soft);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
}

/* URL input + pasted-code textarea */
.field-label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin: 16px 0 8px;
}

.text-input,
.code-input {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 13px 14px;
    font-size: 14.5px;
    background: #fff;
    color: var(--ink);
    font-family: inherit;
}

.code-input {
    min-height: 220px;
    resize: vertical;
    font-family: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
    font-size: 13px;
    line-height: 1.5;
}

.field-hint {
    font-size: 13px;
    color: var(--muted);
    margin: 8px 0 0;
}

/* Status line while fetching / rendering */
.status-line {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    font-size: 14px;
    color: var(--muted);
    min-height: 20px;
}

.spinner {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--line);
    border-top-color: var(--teal);
    animation: spin .7s linear infinite;
    display: none;
}

.spinner.on {
    display: inline-block;
}

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

/* Display-mode picker (PC / Mobile) */
.mode-section {
    margin-top: 34px;
}

.mode-section h2 {
    font-size: 19px;
    margin: 0 0 4px;
}

.mode-section .hint {
    font-size: 13px;
    color: var(--muted);
    margin: 0 0 16px;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    max-width: 620px;
}

.level-card {
    position: relative;
}

.level-card input {
    position: absolute;
    opacity: 0;
    inset: 0;
    margin: 0;
    cursor: pointer;
}

.level-card label {
    display: block;
    background: var(--paper-raise);
    border: 1.5px solid var(--line);
    border-radius: 12px;
    padding: 18px 18px 20px;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}

.level-card input:checked+label {
    border-color: var(--teal);
    background: var(--tag-bg);
}

.level-card .lc-tag {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: .02em;
    margin-bottom: 8px;
}

.level-card input:checked+label .lc-tag {
    color: var(--teal-deep);
}

.level-card h3 {
    margin: 0 0 6px;
    font-size: 16px;
}

.level-card p {
    margin: 0;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.4;
}

/* "Combine into a single page" checkbox */
.merge-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-soft);
    cursor: pointer;
}

.merge-check input {
    margin-top: 3px;
    width: 16px;
    height: 16px;
    accent-color: var(--teal);
    flex-shrink: 0;
    cursor: pointer;
}

.action-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 26px;
    flex-wrap: wrap;
}

.btn-primary:disabled {
    opacity: .45;
    cursor: not-allowed;
}

/* Result box: PDF size, page count, download */
.result-box {
    display: none;
    margin-top: 30px;
    background: var(--teal-deep);
    color: #F4F2EA;
    border-radius: 16px;
    padding: 28px 30px;
    flex-direction: column;
    gap: 18px;
}

.result-box.on {
    display: flex;
}

.result-box h3 {
    margin: 0 0 2px;
    color: #fff;
    font-size: 18px;
}

.result-box .result-sub {
    margin: 0;
    color: #D9E4DF;
    font-size: 14px;
}

.size-compare {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.size-pill {
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 10px;
    padding: 12px 18px;
    text-align: center;
}

.size-pill .sp-label {
    font-size: 11.5px;
    color: #B9E3D6;
    letter-spacing: .03em;
    margin-bottom: 4px;
}

.size-pill .sp-value {
    font-size: 19px;
    font-weight: 800;
    color: #fff;
}

.pages-badge {
    background: var(--clay);
    color: #fff;
    font-weight: 800;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 999px;
}

.result-note {
    font-size: 13px;
    color: #D9E4DF;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 10px;
    padding: 12px 14px;
}

.result-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Post-convert PDF preview */
.preview-box {
    display: none;
    margin-top: 30px;
}

.preview-box.on {
    display: block;
}

.preview-box h3 {
    font-size: 17px;
    margin: 0 0 12px;
    color: var(--ink);
}

.preview-frame {
    width: 100%;
    height: 75vh;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    display: block;
}

/* Responsive tweaks for the new elements */
@media (max-width:640px) {
    .level-grid {
        grid-template-columns: 1fr;
    }
}