/* APP_DESIGN.md brand tokens and form shapes; WEB_DESIGN.md spacing and motion.
   archive.css provides the shared library header, footer and theme controls. */
.archive-nav .back-link { margin-left: 0; }
.upload-main { width: min(1120px, calc(100% - 80px)); padding: 72px 0 96px; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 96px; }
.upload-intro { padding: 0; }
.upload-intro h1 { font-size: 40px; font-weight: 700; line-height: 1.3; color: var(--primary-text); word-break: keep-all; }
.upload-intro > p.library-label { margin: 0 0 16px; font-size: 13px; line-height: 1.5; }
.upload-intro > p.upload-description { margin: 24px 0 40px; font-size: 15px; line-height: 1.8; word-break: keep-all; }
.upload-specs { margin: 0; }
.upload-specs > div { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-top: 1px solid var(--soft-separator); font-size: 13px; }
.upload-specs dt { color: var(--secondary-text); }
.upload-specs dd { margin: 0; color: var(--primary-text); text-align: right; }
.upload-policy { margin-top: 32px; max-width: 360px; }
.upload-policy h2 { margin: 0; font-size: 14px; font-weight: 600; color: var(--primary-text); }
.upload-policy p { margin: 12px 0 0; font-size: 12px; line-height: 1.8; color: var(--secondary-text); word-break: keep-all; }
.upload-panel { padding: 32px; border: 0; background: var(--background); box-shadow: none; }
.step-title { align-items: baseline; gap: 16px; margin-bottom: 24px; }
.step-title > span { display: block; width: auto; height: auto; flex: 0 0 auto; color: var(--secondary-text); background: none; font-size: 12px; font-weight: 500; }
.step-title h2 { margin: 0; font-size: 18px; font-weight: 700; color: var(--primary-text); }
.step-title p { margin: 4px 0 0; color: var(--secondary-text); font-size: 12px; }
.drop-zone { min-height: 260px; padding: 28px 20px; border: 1px dashed var(--separator); border-radius: 18px; background: var(--card); transition: background-color var(--archive-motion) var(--archive-ease), border-color var(--archive-motion) var(--archive-ease); }
.drop-zone:focus-within { outline: 3px solid var(--primary-blue); outline-offset: 4px; }
.upload-preview { width: 112px; height: 112px; margin-bottom: 24px; background: #F6F8FC; border-radius: 18px; }
.upload-preview img { padding: 16px; }
.upload-preview svg { width: 32px; color: #2A6CF6; }
.drop-zone strong { color: var(--primary-text); font-weight: 600; }
.drop-zone small { line-height: 1.7; }
.form-step + .form-step { margin-top: 32px; padding-top: 32px; }
.form-grid { gap: 20px 16px; }
.field > span { color: var(--primary-text); font-size: 13px; font-weight: 500; }
.field > span small { margin-left: 6px; color: var(--secondary-text); font-size: 12px; }
.field input, .field select { min-height: 52px; padding: 12px 14px; background: var(--card); border-color: var(--soft-separator); }
.field input::placeholder { color: var(--secondary-text); opacity: 1; }
.field input:focus-visible, .field select:focus-visible { outline-offset: 2px; }
.license-check { margin-block: 28px 20px; min-height: 44px; align-items: flex-start; }
.license-check .custom-check { margin-top: 2px; }
.upload-public-note { margin: 0 0 16px; color: var(--secondary-text); text-align: center; font-size: 12px; }
.submit-button { min-height: 52px; }
.submit-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.form-message { margin: 12px 0 0; line-height: 1.7; overflow-wrap: anywhere; }
.upload-noscript { color: var(--secondary-text); font-size: 13px; line-height: 1.8; }
@media (max-width: 1100px) {
    .upload-main { width: calc(100% - 64px); gap: 48px; }
    .upload-intro h1 { font-size: 36px; }
}
@media (max-width: 900px) {
    .upload-main { max-width: 640px; padding-block: 48px 64px; grid-template-columns: minmax(0, 1fr); gap: 40px; }
    .upload-intro > p.upload-description { margin: 20px 0 24px; }
    .upload-specs { display: flex; flex-wrap: wrap; gap: 12px 32px; }
    .upload-specs > div { flex-direction: column; gap: 8px; padding: 12px 0 0; }
    .upload-specs dd { text-align: left; }
    .upload-policy { max-width: none; margin-top: 24px; }
}
@media (max-width: 600px) {
    .upload-main { width: calc(100% - 40px); }
    .upload-intro h1 { font-size: 28px; line-height: 1.4; }
    .upload-intro > p.upload-description { font-size: 14px; }
    .upload-panel { padding: 24px 20px; }
    .drop-zone { padding-inline: 16px; }
    .form-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
    .drop-zone { transition: none; }
}