/* Isolated content-guide styles; does not modify the video processing UI. */
.help-site{margin:0;background:#f8fafc;color:#18263b;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.75}
.help-site *{box-sizing:border-box}
.help-site a{color:#195ad8;text-underline-offset:3px}
.help-site a:hover{color:#1244a6}
.help-width{max-width:950px;margin:0 auto;padding:0 24px}
.help-skip{position:absolute;left:-9999px;top:8px;padding:10px;background:#fff;z-index:10}.help-skip:focus{left:16px}
.help-header{background:#fff;border-bottom:1px solid #e3e8f1}
.help-top{min-height:84px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.help-site .help-brand{display:inline-flex;align-items:center;gap:12px;min-width:0;max-width:100%;text-decoration:none!important;white-space:nowrap;color:#111827!important;flex-shrink:0}
.help-site .help-brand-logo{display:block;flex:0 0 36px;width:36px;height:36px;object-fit:contain}
.help-site .help-brand-text{display:block;font-size:20px;line-height:1.25;font-weight:700;letter-spacing:normal;color:#2563eb;background:linear-gradient(135deg,#2563eb,#1d4ed8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.help-site .help-brand:hover .help-brand-text{background-image:linear-gradient(135deg,#1d4ed8,#1e40af)}
.help-top nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.help-top nav a{text-decoration:none;color:#334155;font-weight:600;font-size:14px}
.help-top nav a:hover{color:#195ad8}
.help-main{padding-top:32px;padding-bottom:48px}
.help-breadcrumb{color:#64748b;font-size:14px;display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.help-article{background:#fff;border:1px solid #e3e8f1;border-radius:18px;padding:clamp(24px,5vw,56px);box-shadow:0 8px 28px rgba(25,42,75,.04)}
.help-eyebrow{text-transform:uppercase;letter-spacing:.09em;color:#3763ab;font-weight:750;font-size:12px}
.help-article h1{font-size:clamp(32px,4.5vw,46px);line-height:1.16;letter-spacing:-.03em;margin:15px 0 20px}
.help-lead{font-size:19px;color:#3e4e62;line-height:1.7;margin-bottom:24px}
.help-action{background:#eff6ff;border-radius:12px;padding:18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.help-action span{font-size:13px;color:#49627e}
.help-action a.help-primary,.help-related-grid a{display:inline-block}
.help-action a.help-primary{background:#195ad8;color:#fff;border-radius:9px;padding:11px 18px;font-weight:750;text-decoration:none}
.help-action a.help-primary span{color:inherit}
.help-section{border-top:1px solid #e7ecf3;padding-top:24px;margin-top:30px}
.help-section h2,.help-related h2{font-size:clamp(21px,3vw,27px);line-height:1.3;letter-spacing:-.02em}
.help-section p{margin:14px 0;color:#35445a}
.help-section li{margin:10px 0;padding-left:4px}
.help-section ol,.help-section ul{padding-left:26px}
.help-section code{background:#eaf0fa;border-radius:4px;padding:2px 5px;font-size:.9em}
.help-faq{border-bottom:1px solid #e5eaf2;padding:12px 0}
.help-faq summary{cursor:pointer;font-weight:700;color:#1f3150}
.help-faq p{padding:0 14px}
.help-related{margin-top:24px;padding:20px 8px}
.help-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.help-related-grid a{background:#fff;border:1px solid #dbe5f3;padding:15px 16px;border-radius:12px;text-decoration:none;font-weight:650}
.help-footer{background:#162338;color:#e2e8f0;padding:26px 0;font-size:14px}
.help-footer a{color:#e0ecff}
.help-footer p{margin:5px 0}
.guide-hub{max-width:960px;margin:42px auto 26px;padding:0 20px;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.guide-hub h2{font-size:clamp(23px,3vw,30px);margin-bottom:7px;color:#1e293b}
.guide-hub>p{color:#475569;line-height:1.65}
.guide-hub-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:15px;margin-top:18px}
.guide-hub-card{display:block;background:#fff;border:1px solid #dbe5f3;border-radius:14px;padding:20px;text-decoration:none!important;color:#24364f!important;box-shadow:0 2px 10px rgba(14,38,82,.035)}
.guide-hub-card:hover,.guide-hub-card:focus-visible{border-color:#3b82f6;box-shadow:0 6px 18px rgba(14,38,82,.08)}
.guide-hub-card strong{display:block;font-size:17px;margin-bottom:8px;color:#164fb6}
.guide-hub-card span{font-size:14px;line-height:1.6;display:block}
.guide-tips{margin:15px 0;padding:13px 17px;border:1px solid #d9e5f8;border-radius:11px;background:#f2f7ff;color:#314763;font-size:14px;line-height:1.65}
.guide-tips a{color:#164fb6;font-weight:700}
@media(max-width:680px){.help-width{padding:0 16px}.help-article{padding:23px 18px}.help-top nav{gap:10px}.help-top nav a{font-size:13px}.help-lead{font-size:17px}.guide-hub{margin:28px auto}.guide-hub-grid{grid-template-columns:1fr}}

/* Editorial guide hero. Image is illustrative, not real output evidence. */
.help-hero-figure{width:100%;max-width:560px;margin:18px auto 24px}
.help-hero-figure img{display:block;width:100%;max-width:100%;height:auto;object-fit:contain;border-radius:12px;border:1px solid #dbe5f3;box-shadow:0 5px 16px rgba(14,38,82,.06)}
.help-hero-figure figcaption{font-size:12px;line-height:1.5;color:#64748b;margin-top:8px;text-align:center}

/* FFmpeg Corner notebook: styles scoped to editorial content. */
.ffm-site .ffm-hero{background:#fff;border:1px solid #dfe8f5;border-radius:18px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(230px,1fr);gap:28px;align-items:center;padding:clamp(24px,4vw,42px)}
.ffm-site .ffm-hero h1{font-size:clamp(34px,5vw,51px);letter-spacing:-.04em;line-height:1.13;margin:10px 0}
.ffm-kicker{color:#195ad8;text-transform:uppercase;font-weight:800;font-size:12px;letter-spacing:.09em}
.ffm-lead{font-size:21px;font-weight:650;color:#244570;line-height:1.4}
.ffm-hero p{line-height:1.72;color:#3f5068}
.ffm-hero-terminal{background:#142038;color:#d7edff;border-radius:14px;padding:18px;box-shadow:0 14px 28px rgba(17,28,48,.14);min-width:0;overflow-x:auto}
.ffm-hero-bar{font-size:12px;color:#fc8d73;display:flex;justify-content:space-between;margin-bottom:23px}.ffm-hero-bar span{color:#b1c5e3}
.ffm-hero-terminal code{font-size:15px;white-space:nowrap}.ffm-hero-terminal code span{color:#7ee0b2}.ffm-hero-terminal small{display:block;color:#8caccf;margin-top:20px}
.ffm-warning{background:#eaf4ff;padding:18px 22px;border-left:4px solid #296bea;border-radius:10px;margin:22px 0 28px;line-height:1.65}
.ffm-panel,.ffm-index,.ffm-entry{background:#fff;border:1px solid #e1e8f2;border-radius:17px;padding:clamp(20px,3vw,31px);margin:22px 0}
.ffm-panel h2,.ffm-index h2,.ffm-entry h2{font-size:clamp(21px,3vw,27px);line-height:1.3;margin:0 0 12px}
.ffm-panel p,.ffm-entry p{color:#42536b;line-height:1.78}.ffm-panel code{background:#edf3fc;padding:2px 5px;border-radius:4px;font-size:.9em}
.ffm-index{background:#f1f7ff}.ffm-index>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.ffm-index a{display:flex;justify-content:space-between;gap:8px;background:#fff;border:1px solid #d3e0f4;border-radius:9px;padding:12px 14px;text-decoration:none;font-weight:650;font-size:14px}
.ffm-entry{scroll-margin-top:24px}.ffm-entry-head{display:flex;align-items:flex-start;gap:14px}.ffm-entry-head>span{font-size:13px;letter-spacing:.08em;font-weight:800;color:#3261ad;padding-top:7px}.ffm-entry-head h2{flex:1}
.ffm-terminal{background:#142038;border-radius:12px;color:#d2f4dc;margin-top:18px;overflow:hidden;box-shadow:0 8px 19px rgba(19,36,61,.09)}
.ffm-terminal-head{display:flex;align-items:center;gap:12px;padding:10px 14px;background:#1d2c45;color:#b5c5de;font-size:12px}.ffm-terminal-head>span:first-child{color:#f5b76b;font-size:11px}
.ffm-copy{margin-left:auto;border:1px solid #6880a4;border-radius:7px;background:#324d72;color:#fff;font:650 12px system-ui,sans-serif;padding:7px 10px;cursor:pointer}.ffm-copy:hover,.ffm-copy:focus-visible{background:#4a6c9d}
.ffm-terminal pre{overflow:auto;max-width:100%;margin:0;padding:18px 17px;font-size:13px;line-height:1.7;white-space:pre;scrollbar-color:#586a88 #142038}
.ffm-future{border-style:dashed;background:#f9fbff}.ffm-disclaimer{font-size:13px;color:#65758d;line-height:1.6;margin:28px 0}.ffm-visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(max-width:760px){.ffm-site .ffm-hero{grid-template-columns:1fr}.ffm-index>div{grid-template-columns:1fr}.ffm-entry-head{gap:9px}}

/* 2026-10-12: centered fourth homepage resource on 3-column desktop grid. */
@media (min-width:900px) {
  .guide-hub-grid {grid-template-columns:repeat(3,minmax(0,1fr))}
  .guide-hub-grid > .guide-hub-card:last-child:nth-child(3n+1) {grid-column:2}
}
@media (min-width:681px) and (max-width:899px) {
  .guide-hub-grid {grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* Compact shared footer: one visual line at desktop and mobile sizes. */
.help-footer {padding:18px 0}
.help-footer .help-footer-inline {margin:0;display:block;text-align:center;white-space:nowrap;font-size:clamp(11px,2.6vw,14px);line-height:1.4}
.help-footer .help-footer-inline a {text-decoration:none;font-weight:650}
.help-footer .help-footer-inline a:hover {text-decoration:underline}

/* FFmpeg Corner visual hierarchy and code framing. */
.ffm-site {background:radial-gradient(ellipse 50% 260px at 50% 150px,#eaf3ff 0%,transparent 100%),#f8fafc}
.ffm-site .help-main {max-width:1040px}
.ffm-site .ffm-hero {position:relative;overflow:hidden;background:linear-gradient(135deg,#fff 0%,#f1f7ff 70%,#e3f1ff 100%);border:1px solid #cddff7;box-shadow:0 18px 38px rgba(30,74,133,.075)}
.ffm-site .ffm-hero:after {content:"";position:absolute;right:-80px;top:-90px;width:220px;height:220px;border:1px solid rgba(37,99,235,.12);border-radius:50%;pointer-events:none}
.ffm-site .ffm-hero h1 {margin:12px 0 15px;color:#10284a}
.ffm-site .ffm-hero h1 span {color:#1763d4}
.ffm-site .ffm-kicker-mark {color:#1c6fe8;font-size:12px;margin-right:6px}
.ffm-site .ffm-lead {margin:0 0 14px;font-weight:650}
.ffm-site .ffm-hero p:last-child {margin-bottom:0;max-width:56ch}
.ffm-site .ffm-hero-terminal {position:relative;background:#101e34;box-shadow:0 18px 40px rgba(18,33,56,.23);border:1px solid #2e486b;padding:20px;transform:rotate(1deg)}
.ffm-site .ffm-hero-bar {display:flex;align-items:center;gap:8px;justify-content:space-between;margin-bottom:28px;color:#adbedb}
.ffm-window-dots {display:flex;gap:6px}
.ffm-window-dots i {width:9px;height:9px;border-radius:50%;display:block;background:#fe756e}
.ffm-window-dots i:nth-child(2) {background:#ffca66}
.ffm-window-dots i:nth-child(3) {background:#6dd4a1}
.ffm-command-demo {display:flex;align-items:center;gap:9px;white-space:nowrap;font-size:16px}
.ffm-command-demo .ffm-dollar {color:#65d9ad}
.ffm-command-demo code {color:#e7f2ff;font-size:14px}
.ffm-cursor {width:7px;height:18px;background:#61a8ff;display:inline-block;opacity:.8}
.ffm-site .ffm-hero-terminal small {color:#8cadd5}
.ffm-site .ffm-warning {border-left-color:#2580f2;background:#eaf4ff;border:1px solid #ccdef6;border-left-width:4px;box-shadow:0 4px 15px rgba(31,73,135,.045)}
.ffm-site .ffm-panel, .ffm-site .ffm-index, .ffm-site .ffm-entry {box-shadow:0 7px 22px rgba(28,59,103,.045)}
.ffm-site .ffm-index {background:#f0f6ff;border-color:#d2e2f8}
.ffm-section-label {font-size:11px;letter-spacing:.12em;font-weight:800;color:#2563eb;margin-bottom:7px}
.ffm-site .ffm-index p {color:#52708e;margin:0 0 18px;font-size:14px}
.ffm-site .ffm-index a {align-items:center;min-height:62px;border:1px solid #d5e1f2;border-radius:12px;transition:transform .15s ease,box-shadow .15s ease}
.ffm-site .ffm-index a:hover {transform:translateY(-2px);box-shadow:0 8px 16px rgba(34,84,155,.10)}
.ffm-index-arrow {font-size:18px;color:#3b82f6}
.ffm-site .ffm-entry {position:relative;border-color:#d9e4f5;padding:clamp(20px,3.5vw,32px)}
.ffm-entry-category {display:inline-block;background:#e9f3ff;color:#1e57af;border:1px solid #ccdcf5;border-radius:999px;padding:4px 11px;font-size:11px;letter-spacing:.075em;font-weight:800;margin-bottom:14px}
.ffm-site .ffm-entry-head>span {background:#edf4ff;border:1px solid #d2e3fb;border-radius:9px;padding:6px 9px;color:#175cc2;font-size:13px}
.ffm-site .ffm-entry-head {align-items:center;gap:12px}
.ffm-site .ffm-entry-head h2 {margin:0}
.ffm-site .ffm-entry p {max-width:76ch;margin-top:18px;margin-bottom:17px}
.ffm-site .ffm-entry p code,.ffm-site .ffm-panel code:not(.ffm-command-demo code) {padding:3px 7px;background:#eaf1fb;border:1px solid #d7e2f2;border-radius:6px;color:#184b95;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em}
.ffm-code-box {padding:12px;background:#eaf2fc;border:1px solid #cbdff9;border-radius:15px;margin-top:23px}
.ffm-code-label {color:#275a9c;font-weight:800;font-size:10px;letter-spacing:.11em;padding:0 6px 10px}
.ffm-site .ffm-code-box .ffm-terminal {margin:0;border:1px solid #253e5c;border-radius:10px;box-shadow:0 10px 21px rgba(12,31,57,.12);overflow:hidden}
.ffm-site .ffm-terminal-head {background:#243b5a;padding:11px 14px}
.ffm-terminal-icon {background:#3b5d84;color:#b8e4ff;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;width:29px;height:27px;font:800 13px ui-monospace,monospace}
.ffm-site .ffm-terminal pre {padding:20px 19px;background:#101c2e;color:#a9f3d5;white-space:pre-wrap;overflow-wrap:anywhere;overflow-x:auto;font-size:clamp(12px,1.6vw,14px);line-height:1.85}
.ffm-site .ffm-terminal code {font-family:ui-monospace,SFMono-Regular,Consolas,Monaco,monospace}
.ffm-site .ffm-copy {background:#eaf3ff;color:#214e89;border-color:#b7d2ee;padding:8px 12px;border-radius:8px}
.ffm-site .ffm-copy:hover,.ffm-site .ffm-copy:focus-visible {background:#fff;color:#124a98}
.ffm-site .ffm-future {background:linear-gradient(135deg,#fff,#f0f6ff)}
@media (max-width:760px) {
  .ffm-site .ffm-hero-terminal {transform:none}
  .ffm-site .ffm-code-box {padding:8px}
  .ffm-site .ffm-terminal-head {gap:8px;flex-wrap:wrap}
  .ffm-site .ffm-terminal-head span:nth-child(2) {font-size:11px}
  .ffm-site .ffm-copy {margin-left:auto}
}
@media (prefers-reduced-motion: reduce) {
  .ffm-site .ffm-index a {transition:none}
}

/* Native-language help sections support indexed Indonesian and Arabic tool pages. */
.localized-seo{max-width:900px;margin:30px auto 48px;padding:26px 29px;background:#fff;border:1px solid #dbe5f3;border-radius:16px;box-shadow:0 6px 22px rgba(16,39,77,.045);font-family:system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;line-height:1.85;color:#324358}
.localized-seo h2{font-size:clamp(21px,3vw,27px);line-height:1.4;color:#203a5b;margin:12px 0 15px;font-weight:750}
.localized-seo h2:not(:first-child){margin-top:25px}
.localized-seo p{margin:0 0 15px}
.localized-seo ol{padding-inline-start:24px;margin:18px 0}
.localized-seo li{margin:9px 0;padding-inline-start:5px}
.localized-seo details{border-block-end:1px solid #e2eaf5;padding:13px 0}
.localized-seo summary{color:#1c4f98;font-weight:700;cursor:pointer}
.localized-seo details p{padding-top:12px;margin-bottom:6px;color:#445a71}
.localized-seo a{color:#155bb9;text-underline-offset:3px}
.localized-seo-next{padding-top:17px;border-top:1px solid #edf1f7;margin-top:20px!important;font-size:14px}
@media(max-width:680px){.localized-seo{margin:22px 15px 38px;padding:20px 18px}.localized-seo h2{font-size:22px}}

/* Stabilization runtime monitor. Keep elapsed time and stop guidance visible but compact. */
.processing-runtime-note{margin:13px 0 6px;padding:11px 13px;border-radius:9px;border:1px solid #cfe0f6;background:#f1f7ff;color:#29517f;font:500 13px/1.55 system-ui,sans-serif;text-align:center}
.processing-runtime-note[hidden]{display:none!important}

/* Structured feedback reasons for faster issue diagnosis; optional and private. */
.feedback-reason{margin:12px 0 14px;text-align:start}
.feedback-reason label{display:block;margin-bottom:6px;color:#334155;font:650 13px/1.4 system-ui,-apple-system,sans-serif}
.feedback-reason select{display:block;width:100%;max-width:100%;box-sizing:border-box;padding:10px 11px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;color:#1e293b;font:14px system-ui,-apple-system,sans-serif}
.feedback-reason select:focus-visible{outline:2px solid #2563eb;outline-offset:2px}