/*
Theme Name: Real Network Fixes
Description: Network troubleshooting knowledge base theme: library sidebar, article reading area and help panel.
Version: 1.0.0
Author: Real Network Fixes
Text Domain: rnf
*/
:root{--bg:#EEF2F7;--panel:#fff;--ink:#0F1E33;--muted:#4B5B6E;--line:#D5DDE7;--accent:#1660D6;--accent-ink:#fff;--soft:#E4EDFB;--code:#0F1720;--code-ink:#D6E2EE;--warn:#7A4E00;--warnbg:#FFF3D1;--ok:#0F6A35;--okbg:#E1F4E8;--navy:#0B2545;--navy-muted:#B8C7DB;--amber:#F2A93B;--shadow:0 1px 2px rgba(15,30,51,.06),0 6px 20px rgba(15,30,51,.07)}
html[data-theme=dark]{--bg:#0A1220;--panel:#111C2C;--ink:#E5ECF4;--muted:#9FB0C3;--line:#22324A;--accent:#6AAEFF;--accent-ink:#04111F;--soft:#14263F;--code:#070C11;--warn:#F2C46B;--warnbg:#2D2412;--ok:#7BD9A0;--okbg:#122A1D;--navy:#07101C;--navy-muted:#9FB0C3;--amber:#F2B04A;--shadow:none}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 "IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent)}a:hover{color:var(--ink)}
img{max-width:100%;height:auto}
code,pre{font-family:"IBM Plex Mono",ui-monospace,Consolas,monospace}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;color:#000;padding:8px;z-index:10}
.screen-reader-text{position:absolute;left:-9999px}
/* header */
.site-header{background:var(--navy);color:#fff}
.site-header .in{max-width:1440px;margin:0 auto;padding:12px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand:hover{color:#fff;opacity:.9}
.brand b{font-size:18px;display:block;line-height:1.15}.brand small{color:var(--navy-muted);font-size:12.5px}
.top-nav{display:flex;flex-wrap:wrap;gap:2px;flex:1 1 auto}
.top-nav a{color:var(--navy-muted);text-decoration:none;font-weight:500;font-size:14.5px;padding:10px 12px;border-radius:8px}
.top-nav a:hover,.top-nav a[aria-current]{color:#fff}
.btn-theme{min-height:44px;display:flex;align-items:center;gap:8px;padding:0 12px;background:transparent;border:1px solid rgba(255,255,255,.35);border-radius:8px;color:#fff;font:500 14px inherit;cursor:pointer}
.rnf-btn,.btn-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border:0;border-radius:8px;background:var(--amber);color:#0B2545!important;font:600 15px "IBM Plex Sans",sans-serif;text-decoration:none;cursor:pointer}
.rnf-btn:hover,.btn-cta:hover{filter:brightness(.95)}
.rnf-btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)!important}
/* layout */
.wrap{max-width:1440px;margin:0 auto;padding:24px;display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start}
.col-lib{flex:1 1 250px;max-width:290px;min-width:230px}
.col-main{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:24px}
.col-help{flex:1 1 270px;max-width:320px;min-width:250px;display:flex;flex-direction:column;gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
/* library */
.lib{padding:14px 10px}
.lib h2{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 10px 8px}
.lib details{border-top:1px solid var(--line)}
.lib summary{list-style:none;display:flex;align-items:center;min-height:44px;padding:6px 10px;font-weight:600;font-size:14.5px;cursor:pointer;border-radius:8px}
.lib summary::-webkit-details-marker{display:none}
.lib summary::after{content:"+";margin-left:auto;color:var(--muted);font-family:"IBM Plex Mono",monospace}
.lib details[open] summary::after{content:"−"}
.lib ul{list-style:none;margin:0 0 8px;padding:0}
.lib li a{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:36px;padding:6px 10px 6px 22px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:14px}
.lib li a:hover{background:var(--soft);color:var(--ink)}
.lib li a.on{background:var(--soft);color:var(--accent);font-weight:600}
.lib .n{font-size:12px;color:var(--muted)}
/* help panel */
.help{padding:20px;display:flex;flex-direction:column;gap:12px}
.help h2{margin:0;font-size:19px;line-height:1.3}.help h3{margin:0;font-size:15px}
.help p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.55}
.help a.b{display:flex;align-items:center;justify-content:center;min-height:44px;border-radius:8px;border:1px solid var(--line);color:var(--ink);font-weight:600;font-size:15px;text-decoration:none}
.help a.b.p{background:var(--amber);border-color:var(--amber);color:#0B2545}
.help small{font-size:12.5px;color:var(--muted);line-height:1.5}
.help-note{background:var(--soft);border-radius:12px;padding:16px 20px}
.help-note h3{font-size:14px;margin:0 0 4px}.help-note p{font-size:13.5px;margin:0;color:var(--ink)}
/* hero */
.hero{background:var(--navy);color:#fff;border-radius:16px;padding:34px 30px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow)}
.hero .top{display:flex;flex-wrap:wrap;gap:24px;align-items:center}
.hero .txt{flex:999 1 360px;display:flex;flex-direction:column;gap:12px;min-width:0}
.hero .tag{align-self:flex-start;font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#0B2545;background:var(--amber);padding:5px 10px;border-radius:999px}
.hero h1{margin:0;font-size:clamp(28px,3.4vw,36px);line-height:1.18;color:#fff}
.hero p{margin:0;color:var(--navy-muted);font-size:16.5px}
.hero img{flex:1 1 260px;max-width:420px;width:100%;height:236px;object-fit:cover;object-position:60% 30%;border-radius:14px;border:2px solid rgba(255,255,255,.15)}
.searchbox{display:flex;align-items:center;gap:10px;background:#fff;border:2px solid var(--amber);border-radius:12px;padding:0 6px 0 14px;min-height:58px}
.searchbox input{flex:1;min-width:0;border:0;background:transparent;color:#0F1E33;font:400 17px "IBM Plex Sans",sans-serif;padding:14px 0;outline:none}
.searchbox button{min-height:44px;padding:0 16px;border:0;border-radius:8px;background:var(--navy);color:#fff;font-weight:600;cursor:pointer}
.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:var(--navy-muted)}
.chips a{min-height:36px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.live{display:flex;flex-direction:column;gap:10px}
.live a{display:block;padding:12px 16px;border-radius:10px;background:var(--panel);color:var(--accent);font-weight:600;text-decoration:none}
/* sections */
.sec{padding:22px 24px}
.sec h2{margin:0 0 12px;font-size:21px}
.areas{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.areas a{display:flex;flex-direction:column;gap:6px;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow)}
.areas a b{font-size:16px}.areas a span{font-size:13.5px;color:var(--muted);line-height:1.5}
.list a.item{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;padding:12px 0;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}
.list a.item b{font-weight:600;color:var(--accent);flex:1 1 320px}
.pill{font-size:12.5px;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--soft);color:var(--ink)}
.muted{color:var(--muted)}
.empty{padding:16px;border:1px dashed var(--line);border-radius:10px;color:var(--muted)}
.sub{background:var(--soft);border-radius:14px;padding:22px 24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.sub div{flex:1 1 300px}.sub h2{margin:0 0 4px;font-size:18px}.sub p{margin:0}
.sub input{flex:1 1 220px;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);font:inherit}
/* article */
.article{padding:32px 36px}
.crumbs{font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px}
.article h1{margin:8px 0 10px;font-size:clamp(26px,3vw,34px);line-height:1.2}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.meta span{font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}
.meta span.k{background:var(--soft);border-color:var(--soft);color:var(--ink)}
.featured img{width:100%;height:300px;object-fit:cover;object-position:center 35%;border-radius:14px;margin:14px 0 4px}
.entry{font-size:16.5px}
.entry h2{font-size:22px;margin:30px 0 10px;line-height:1.3}
.entry h3{font-size:17.5px;margin:22px 0 8px}
.entry p,.entry li{line-height:1.7}
.entry table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto}
.entry th,.entry td{padding:11px 13px;border:1px solid var(--line);text-align:left;vertical-align:top}
.entry th{background:var(--bg)}
.entry pre{position:relative;background:var(--code);color:var(--code-ink);border-radius:8px;padding:30px 92px 14px 14px;overflow-x:auto;font-size:14.5px;line-height:1.5}
.entry pre::before{content:attr(data-os);position:absolute;top:8px;left:14px;font:600 11px "IBM Plex Sans",sans-serif;letter-spacing:.06em;text-transform:uppercase;color:#9FB3C6}
.entry pre code{background:none;color:inherit;padding:0}
.entry :not(pre)>code{background:var(--soft);padding:1px 5px;border-radius:4px;font-size:.92em}
.copy{position:absolute;top:8px;right:8px;min-height:36px;padding:0 12px;border:1px solid #2c3d52;border-radius:6px;background:transparent;color:#D6E2EE;font:600 13px "IBM Plex Sans",sans-serif;cursor:pointer}
.note{background:var(--warnbg);color:var(--warn);border-radius:10px;padding:12px 16px;font-size:15px}
.note-blue{background:var(--soft);border-radius:12px;padding:16px 20px}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--bg);margin:12px 0}
.flow div{flex:1 1 120px;padding:12px;border-radius:10px;background:var(--panel);border:1px solid var(--line);text-align:center;font-size:13.5px;color:var(--muted)}
.flow div b{display:block;color:var(--ink);font-size:15px}
.flow div.hot{background:var(--warnbg);border:2px solid var(--amber)}
.flow i{font-style:normal;color:var(--muted)}
.feedback{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:18px 20px;border-radius:12px;background:var(--bg);border:1px solid var(--line);margin-top:28px}
.feedback h2{margin:0;font-size:17px;flex:1 1 200px}
.feedback button{min-height:44px;padding:0 18px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font:600 15px inherit;cursor:pointer}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.related a{padding:14px 16px;border:1px solid var(--line);border-radius:10px;text-decoration:none;font-weight:600}
/* forms */
.rnf-form{display:flex;flex-direction:column;gap:18px}
.rnf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.rnf-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14.5px}
.rnf-full{grid-column:1/-1}
.rnf-form input:not([type=radio]):not([type=checkbox]),.rnf-form select,.rnf-form textarea{font:400 15px "IBM Plex Sans",sans-serif;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:11px 12px;width:100%}
.rnf-form :focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.rnf-hint{font-weight:400;font-size:13px;color:var(--muted)}
.rnf-hp{position:absolute;left:-9999px}
.rnf-assist{border:1px solid var(--line);border-radius:12px;padding:12px 16px 16px;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.rnf-assist legend{font-weight:600;font-size:14.5px;padding:0 6px}
.rnf-assist label{flex:1 1 190px;flex-direction:row!important;align-items:center;gap:10px!important;min-height:56px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.rnf-assist label span{display:flex;flex-direction:column}.rnf-assist small{font-weight:400;color:var(--muted)}
.rnf-submit-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.rnf-alert{background:var(--warnbg);color:var(--warn);padding:12px 14px;border-radius:8px}
.rnf-ok{background:var(--okbg);color:var(--ok);padding:12px 14px;border-radius:8px}
.rnf-confirm{display:flex;flex-direction:column;gap:6px}
.rnf-ref-label{margin:0;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.rnf-ref{margin:0;font:500 26px "IBM Plex Mono",monospace;background:var(--soft);padding:10px 14px;border-radius:10px;align-self:flex-start}
.rnf-timeline{list-style:none;padding:0;margin:14px 0}
.rnf-timeline li{position:relative;padding:0 0 16px 26px;border-left:2px solid var(--line);margin-left:6px;font-weight:600}
.rnf-timeline li::before{content:"";position:absolute;left:-8px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--panel);border:2px solid var(--line)}
.rnf-timeline li.done::before{background:var(--ok);border-color:var(--ok)}
.rnf-timeline li.current::before{background:var(--accent);border-color:var(--accent)}
.rnf-msg{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}
.rnf-msg-team{background:var(--soft)}
.rnf-msg-meta{margin:0;font-size:13px;color:var(--muted);font-weight:600}
.site-footer{border-top:1px solid var(--line);background:var(--panel)}
.site-footer .in{max-width:1440px;margin:0 auto;padding:20px 24px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.site-footer .in span{flex:1 1 300px}
@media (max-width:760px){.col-main{order:1}.col-help{order:2}.col-lib{order:3}.rnf-grid{grid-template-columns:1fr}.article,.sec{padding:22px 18px}.col-lib,.col-help{max-width:none}.hero{padding:26px 18px}}