@media (max-width: 960px) {
  .nav-links { gap: 18px; }
  .hero { padding: 64px 0; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 44px; }
  .hero-copy { max-width: 680px; }
  .workflow-preview { max-width: 640px; }
  .hero h1 { font-size: 46px; }
  .feature-grid { gap: 28px; }
  .split-section, .faq-layout { gap: 52px; }
  .file-item { grid-template-columns: minmax(200px, 1fr) minmax(180px, 0.9fr); gap: 16px 24px; }
  .file-actions { grid-column: 1 / -1; justify-content: flex-start; padding-left: 51px; margin-top: -8px; }
  .footer-grid { gap: 32px; }
}

@media (max-width: 780px) {
  .container { width: min(100% - 36px, 680px); }
  .nav-wrap { flex-wrap: wrap; gap: 16px; padding: 16px 0; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; gap: 12px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.09); }
  .nav-action { margin-left: auto; }
  .hero { padding: 58px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-copy { max-width: 630px; }
  .workflow-preview { max-width: 580px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .section-heading > p { max-width: 600px; }
  .workspace-section, .content-section { padding: 60px 0; }
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .settings-grid .field:first-child { grid-column: 1 / -1; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .split-section, .faq-layout { grid-template-columns: 1fr; gap: 36px; }
  .section-intro { max-width: 620px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-meta { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 560px) {
  .container { width: calc(100% - 28px); }
  .nav-links { overflow-x: auto; justify-content: flex-start; gap: 22px; font-size: 12px; white-space: nowrap; }
  .nav-action { display: none; }
  .hero { padding: 46px 0; }
  .hero h1 { font-size: clamp(34px, 11vw, 40px); letter-spacing: -1.5px; }
  .hero-description { font-size: 15px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-facts { display: grid; gap: 9px; }
  .workflow-preview { width: 100%; padding: 18px; }
  .preview-heading { display: block; }
  .preview-label { display: block; max-width: none; margin-bottom: 8px; }
  .preview-flow li { grid-template-columns: 32px 1fr; }
  .flow-tag { display: none; }
  .preview-footer { flex-direction: column; gap: 4px; font-size: 10px; }
  .workspace-content { padding: 20px; }
  .shared-settings { padding: 18px; }
  .dropzone { min-height: 210px; padding: 24px 18px; }
  .selection-toolbar { align-items: flex-start; }
  .selection-toolbar > div { display: grid; gap: 2px; }
  .concurrency-note { max-width: 100px; text-align: right; white-space: normal; }
  .file-item { grid-template-columns: 1fr; gap: 14px; padding: 20px 0; }
  .file-actions { grid-column: auto; padding-left: 0; margin-top: 0; flex-wrap: wrap; }
  .file-name { white-space: normal; overflow-wrap: anywhere; }
  .batch-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .submission-actions #compressSubmit { grid-column: 1 / -1; }
  .settings-grid { grid-template-columns: 1fr; }
  .settings-grid .field:first-child { grid-column: auto; }
  .feature-grid { gap: 24px; }
  .feature-item { display: grid; grid-template-columns: 28px minmax(0, 1fr); column-gap: 14px; }
  .feature-index { grid-row: 1 / span 2; margin-bottom: 0; padding-top: 3px; }
  .feature-item h3, .feature-item p { grid-column: 2; }
  .feature-item h3 { margin-bottom: 6px; }
  .numbered-steps li { grid-template-columns: 30px minmax(0, 1fr); gap: 14px; }
  .numbered-steps > li > span { width: 30px; height: 30px; }
  .format-table-wrap { padding: 0 14px; }
  .format-table th { width: 40%; padding-right: 12px; }
  .format-table th, .format-table td { font-size: 12px; }
  .format-table td { overflow-wrap: anywhere; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-meta { grid-column: auto; }
  .footer-bottom { display: grid; gap: 6px; }
}

@media (max-width: 360px) {
  .container { width: calc(100% - 24px); }
  .hero h1 { font-size: 34px; }
  .workflow-preview { padding: 16px; }
  .preview-flow li { gap: 10px; }
}

@media (max-width: 960px) {
  .result-details { gap: 24px; }
}

@media (max-width: 780px) {
  .player-page-heading { align-items: start; }
  .player-page-heading .button { display: none; }
  .result-details { grid-template-columns: 1fr; gap: 28px; }
  .tool-heading { align-items: start; }
  .tool-heading .button { display: none; }
  .tool-footer .container { flex-wrap: wrap; }
  .tool-footer .container > span { width: 100%; margin-left: 0; }
}

@media (max-width: 560px) {
  .player-main { padding-top: 36px; padding-bottom: 52px; }
  .player-page-heading { margin-bottom: 20px; }
  .player-shell { padding: 6px; border-radius: 9px; }
  .player-container { border-radius: 5px; }
  .controls { gap: 5px; padding: 32px 8px 8px; }
  .time-display { font-size: 10px; }
  .icon-btn { width: 27px; height: 27px; }
  .settings-popover { right: 8px; bottom: 58px; max-height: calc(100% - 72px); }
  .download-modal { padding: 10px; }
  .download-modal-card { padding: 17px; }
  .download-modal-title { font-size: 16px; }
  .download-modal-status { font-size: 11px; }
  .seek-card { min-width: 96px; padding: 10px; }
  .result-details { margin-top: 30px; }
  .tool-footer .container { gap: 16px; }
  .tool-footer nav { flex-wrap: wrap; gap: 10px 18px; }
}