/* ==========================================================================
   Network tools - NOC console stylesheet
   1 Fonts  2 Tokens  3 Base  4 Header  5 Layout/page  6 Forms  7 Buttons
   8 Results primitives  9 Map  10 Tables  11 Tiles/grids  12 Charts
   13 Tool-specific  14 Articles/prose  15 Footer  16 Responsive/motion
   ========================================================================== */

/* 1 Fonts ---------------------------------------------------------------- */
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Sans";font-weight:700;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:700;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Mono";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-mono-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Mono";font-weight:600;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-mono-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-weight:600;font-style:normal;font-display:swap;src:url(fonts/ibm-plex-mono-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}

/* 2 Tokens --------------------------------------------------------------- */
:root{
  color-scheme:dark;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bg:#0D1117;--top:#11161D;--surface:#151A21;--surface-2:#1C222B;--sunken:#0A0E13;
  --border:#29313C;--row:#222932;--text:#E6EBF1;--muted:#93A0AF;--soft:#B4BFCC;
  --accent:#5AB0FF;--accent-ink:#06121F;--accent-soft:#1C2A3D;--accent-text:#8CC8FF;
  --ok:#3FCF8E;--ok-bg:#12291F;--warn:#F2B544;--warn-bg:#2E2412;--bad:#FF7272;--bad-bg:#2F1717;
  --land:#232A34;--land-stroke:#12161C;
  --as0-bg:#1C2A3D;--as0:#8CC8FF;--as1-bg:#2A2340;--as1:#C3A8FF;--as2-bg:#13302C;--as2:#5ED6C4;
  --as3-bg:#2E2412;--as3:#F2B544;--as4-bg:#2F1A26;--as4:#F28DB8;--as5-bg:#24301A;--as5:#B2D46A;
  --tm-dns:#5ED6C4;--tm-connect:#5AB0FF;--tm-tls:#C3A8FF;--tm-ttfb:#F2B544;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --r:8px;--r-lg:12px;
}
@media (prefers-color-scheme:light){
  :root{
    color-scheme:light;
    --bg:#F4F6F9;--top:#FFFFFF;--surface:#FFFFFF;--surface-2:#EEF1F5;--sunken:#F0F3F7;
    --border:#D3DAE3;--row:#E4E9EF;--text:#161B22;--muted:#586373;--soft:#3C4756;
    --accent:#1668C7;--accent-ink:#FFFFFF;--accent-soft:#E2EEFC;--accent-text:#0F57A8;
    --ok:#11804c;--ok-bg:#E1F5EB;--warn:#9a5b00;--warn-bg:#FCEFD4;--bad:#c62f2f;--bad-bg:#FBE4E4;
    --land:#dfe4ea;--land-stroke:#ffffff;
    --as0-bg:#E2EEFC;--as0:#0F57A8;--as1-bg:#EDE6FB;--as1:#5B34B0;--as2-bg:#DDF3EF;--as2:#0B6F61;
    --as3-bg:#FCEFD4;--as3:#8A5200;--as4-bg:#FBE4EE;--as4:#A8316A;--as5-bg:#E8F2D5;--as5:#4A6A10;
    --tm-dns:#0B8A78;--tm-connect:#1668C7;--tm-tls:#7141D0;--tm-ttfb:#B87000;
    --shadow:0 8px 24px rgba(20,30,50,.15);
  }
}

/* 3 Base ----------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 var(--sans);-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
:lang(ar) body,:lang(fa) body{font-family:system-ui,"Segoe UI",Tahoma,Arial,sans-serif;line-height:1.7}
:lang(zh) body{font-family:"IBM Plex Sans",system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.65}
:lang(ja) body{font-family:"IBM Plex Sans",system-ui,"Hiragino Sans","Yu Gothic UI","Meiryo","Noto Sans JP",sans-serif;line-height:1.65}
:is(:lang(ar),:lang(fa),:lang(zh),:lang(ja)) :is(.field>label,th,legend,.label,.foot h2,.sec-h){letter-spacing:0;text-transform:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:30px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
h2{font-size:20px;line-height:1.3;font-weight:600}
h3{font-size:16px;font-weight:600}
a{color:var(--accent-text);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
code,pre,kbd{font-family:var(--mono)}
code{font-size:.9em}
img,svg{max-width:100%}
button,input,select{font:inherit;color:inherit}
summary{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none!important}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.sm{font-size:13px}
.strong{font-weight:600}
.block{display:block}
.ell{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.nowrap{white-space:nowrap}
.t-ok{color:var(--ok)}.t-warn{color:var(--warn)}.t-bad{color:var(--bad)}.t-muted{color:var(--muted)}
.label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}

/* 4 Header --------------------------------------------------------------- */
.wrap{width:100%;max-width:1240px;margin-inline:auto;padding-inline:24px}
.top{background:var(--top);border-bottom:1px solid var(--border);position:relative;z-index:20}
.top-in{display:flex;flex-wrap:wrap;align-items:center;gap:0 16px;min-height:60px}
.top-in>.brand{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--text);text-decoration:none;white-space:nowrap}
.brand img{flex:none;border-radius:7px}
.brand b{font-weight:700}
.brand span{font-weight:500}
.tools-nav{display:flex;align-items:center;gap:2px;flex:1;min-width:0;flex-wrap:wrap}
.tools-nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border-radius:999px;color:var(--soft);text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap}
.tools-nav a:hover{background:var(--surface-2);color:var(--text)}
.tools-nav a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-text);font-weight:600}
.top-end{display:flex;align-items:center;gap:10px;margin-inline-start:auto}
.myip-chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 12px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--muted);font-size:13px;white-space:nowrap}
.myip-chip code{color:var(--text);font-size:13px}
.menu{display:none}
.menu summary{list-style:none;display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface-2);font-weight:600;font-size:14px}
.menu summary::-webkit-details-marker{display:none}
@media (min-width:901px){
  .tools-nav{order:3;flex:0 0 100%;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding-block:0 8px;margin-top:-4px}
  .tools-nav::-webkit-scrollbar{display:none}
}
.lang{position:relative}
.lang summary{list-style:none;display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 12px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface);color:var(--soft);font-size:13px;font-weight:600}
.lang summary::-webkit-details-marker{display:none}
.lang summary:hover{background:var(--surface-2)}
.lang ul{position:absolute;inset-block-start:calc(100% + 6px);inset-inline-end:0;z-index:30;margin:0;padding:6px;list-style:none;min-width:170px;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow)}
.lang li a{display:flex;align-items:center;min-height:40px;padding:0 12px;border-radius:6px;color:var(--text);text-decoration:none;font-size:14px}
.lang li a:hover{background:var(--surface-2)}
.lang li a[aria-current]{background:var(--accent-soft);color:var(--accent-text);font-weight:600}

/* 5 Layout / page head --------------------------------------------------- */
.main{flex:1;display:flex;flex-direction:column;gap:20px;padding-block:32px 64px}
.main>*{min-width:0}
.page-head{display:flex;flex-direction:column;gap:8px}
.page-head.hero{padding-block:8px 4px}
.hero h1{font-size:36px}
.lead{color:var(--soft);font-size:16px;max-width:75ch}
.meta{color:var(--muted);font-size:13px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);min-width:0}
.card.pad,.pad{padding:16px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 16px;border-bottom:1px solid var(--border);font-weight:600}
.card-f{padding:10px 16px;border-top:1px solid var(--border);font-size:13px}
.out{display:flex;flex-direction:column;gap:16px;min-width:0}
.out:empty{display:none}
.related{padding:16px;display:flex;flex-direction:column;gap:12px}
.related h2{font-size:16px}
.faq{display:flex;flex-direction:column;gap:8px}
.faq>h2{margin-bottom:4px}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:0 16px}
.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:8px;height:8px;border-inline-end:2px solid var(--muted);border-block-end:2px solid var(--muted);transform:rotate(45deg);transition:transform .15s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details>*:not(summary){color:var(--soft);padding-block-end:14px}
.more-tools{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.tool-grid.big{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.tool-card{display:flex;flex-direction:column;gap:4px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);color:var(--text);text-decoration:none;min-height:64px}
.tool-card:hover{border-color:var(--accent);background:var(--surface-2)}
.tool-card b{font-weight:600;color:var(--text)}
.tool-card span{color:var(--muted);font-size:13px}
.big .tool-card{padding:18px 20px}
.guides{display:flex;flex-direction:column;gap:12px}
.permalink{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:4px;font-size:13px}
.permalink code{padding:4px 8px;border:1px solid var(--border);border-radius:6px;background:var(--sunken);color:var(--soft);word-break:break-all}
.pl-label{color:var(--muted)}
.pl-saved{color:var(--ok);font-weight:600}
.btns{display:flex;flex-wrap:wrap;gap:8px}

/* 6 Forms ---------------------------------------------------------------- */
.form{display:grid;gap:12px;align-items:end;padding:16px}
.g-dns{grid-template-columns:2fr .8fr 1.6fr auto}
.g-ping{grid-template-columns:2fr auto .6fr .6fr auto}
.g-trace{grid-template-columns:2fr .6fr .6fr auto}
.g-ssl{grid-template-columns:2fr .5fr auto}
.g-ports{grid-template-columns:1.4fr 1.6fr auto}
.g-http{grid-template-columns:1fr auto}
.g-mail{grid-template-columns:2fr 1fr auto}
.field{display:flex;flex-direction:column;gap:6px;min-width:0;border:0;padding:0;margin:0}
.field>label,.field>legend,legend{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:0}
legend{margin-bottom:6px;float:none}
fieldset.field legend{margin-bottom:6px}
.opt{text-transform:none;letter-spacing:0;font-weight:400;color:var(--muted)}
.form input[type=text],.form input[type=search],.form input[type=number],.form input:not([type]),.form select{width:100%;height:44px;padding:0 12px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:var(--r);font-family:var(--mono);font-size:14px;min-width:0}
.form select{appearance:none;padding-inline-end:32px;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-size:5px 5px,5px 5px;background-repeat:no-repeat;background-position:calc(100% - 17px) 19px,calc(100% - 12px) 19px;font-family:var(--sans)}
[dir=rtl] .form select{background-position:17px 19px,12px 19px}
.form input::placeholder{color:var(--muted);opacity:.8}
.form input:focus,.form select:focus{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:0}
.row{display:flex;gap:8px;align-items:stretch}
.row>input{flex:1;min-width:0}
.seg{display:inline-flex;height:44px;border:1px solid var(--border);border-radius:var(--r);background:var(--bg);overflow:hidden}
.seg label{position:relative;display:flex}
.seg input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.seg span{display:flex;align-items:center;justify-content:center;min-width:56px;padding:0 14px;color:var(--soft);font-size:13px;font-weight:600;font-family:var(--mono)}
.seg input:checked+span{background:var(--accent-soft);color:var(--accent-text)}
.seg input:focus-visible+span{outline:2px solid var(--accent);outline-offset:-2px}
.presets{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);color:var(--soft);font-size:13px;font-weight:600;cursor:pointer}
.pill:hover{border-color:var(--accent)}
.pill[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent-text);border-color:var(--accent)}
.msg{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad);border-radius:var(--r);padding:10px 14px}
.msg:empty{display:none}

/* 6a Recent searches + cookie consent ------------------------------------ */
.recent{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;margin-top:-6px}
.rchip{display:inline-flex;align-items:stretch;max-width:100%;border:1px solid var(--border);border-radius:999px;background:var(--top);overflow:hidden}
.rchip:hover,.rchip:focus-within{border-color:var(--accent)}
.rchip.cross{border-style:dashed}
.rchip button{border:0;background:none;color:var(--soft);cursor:pointer;min-height:32px;font-size:13px}
.rchip-go{padding:4px 4px 4px 12px;font-family:var(--mono);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
[dir=rtl] .rchip-go{padding:4px 12px 4px 4px}
.rchip-go:hover{color:var(--text)}
.rchip-x{padding:0 10px 0 6px;font-family:var(--sans);font-size:15px;color:var(--muted);line-height:1}
[dir=rtl] .rchip-x{padding:0 6px 0 10px}
.rchip-x:hover{color:var(--bad)}
.recent-clear{border:0;background:none;color:var(--muted);font:13px var(--sans);text-decoration:underline;text-underline-offset:2px;cursor:pointer;min-height:32px;padding:0 6px}
.recent-clear:hover{color:var(--text)}
.consent{position:fixed;inset-inline:16px;inset-block-end:16px;z-index:50;max-width:760px;margin-inline:auto;display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;padding:14px 16px;box-shadow:var(--shadow)}
.consent p{flex:1 1 320px;margin:0;font-size:14px;color:var(--soft)}
.consent .btns{flex:none}
.consent .btn{height:38px}

/* 6b Mobile app call-to-action ------------------------------------------- */
.app-cta{display:flex;align-items:center;gap:16px;padding:16px 18px;flex-wrap:wrap}
.app-cta>img{flex:none;border-radius:12px}
.app-cta-text{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:2px}
.app-cta-text b{font-size:16px;font-weight:700}
.app-cta-text span{font-size:13px;color:var(--muted)}
.app-cta-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.btn.play{background:#FFB020;color:#0C0D10;border-color:#FFB020;font-weight:700;height:40px}
.btn.play:hover{filter:brightness(1.06)}

/* 7 Buttons -------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:var(--r);font-size:14px;font-weight:500;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.btn.primary:hover{filter:brightness(1.08)}
.btn.block{display:flex;width:100%}
.btn.sm{height:32px;padding:0 12px;font-size:13px;position:relative}
.btn.sm::after{content:"";position:absolute;inset:-4px 0}
.btn:disabled,.btn.busy{opacity:.6;cursor:not-allowed}
.btn.busy::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid currentColor;border-inline-end-color:transparent;animation:spin .7s linear infinite}

/* 8 Result primitives ---------------------------------------------------- */
.ic{flex:none;display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;font-size:13px;font-weight:700;line-height:1;background:var(--surface-2);color:var(--muted)}
.ic.lg{width:36px;height:36px;font-size:18px}
.ic-ok,.ic-match{background:var(--ok-bg);color:var(--ok)}
.ic-warn,.ic-diff{background:var(--warn-bg);color:var(--warn)}
.ic-bad,.ic-fail{background:var(--bad-bg);color:var(--bad)}
.ic-skip{background:var(--surface-2);color:var(--muted)}
.ic-wait{background:transparent;color:transparent;border:2px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite}
.flag{flex:none;width:20px;height:14px;border-radius:2px;object-fit:cover;box-shadow:0 0 0 1px var(--border);vertical-align:-2px}
.summary{display:flex;flex-direction:column;gap:12px}
.bar{display:flex;height:4px;border-radius:999px;overflow:hidden;background:var(--surface-2)}
.bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.stats{display:flex;flex-wrap:wrap;gap:8px 28px}
.stat{display:inline-flex;align-items:baseline;gap:8px;font-size:14px;color:var(--muted)}
.stat b{color:var(--text);font-weight:600}
.chip{display:inline-flex;align-items:center;gap:6px;max-width:100%;padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:var(--top);color:var(--soft);font-size:13px;line-height:1.5}
.chip .ic{width:18px;height:18px;font-size:11px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.anycast{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:12px 16px;border-top:1px solid var(--border);font-size:13px}
.anycast>span:last-child{display:flex;flex-wrap:wrap;gap:6px}
.note{font-size:13px;margin:0}
.info{font-size:13px}
.callout{padding:12px 16px;border:1px solid var(--border);border-radius:var(--r);background:var(--accent-soft);color:var(--text)}
.callout.warn{background:var(--warn-bg);color:var(--warn);border-color:var(--warn)}
.stack{display:flex;flex-direction:column;gap:12px;min-width:0}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.two.wide-first{grid-template-columns:1.4fr 1fr}
.two>*{min-width:0}
.sec-h{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:4px 0 8px}
.as{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;font-family:var(--mono);background:var(--as0-bg);color:var(--as0);white-space:nowrap}
.as0{background:var(--as0-bg);color:var(--as0)}.as1{background:var(--as1-bg);color:var(--as1)}.as2{background:var(--as2-bg);color:var(--as2)}
.as3{background:var(--as3-bg);color:var(--as3)}.as4{background:var(--as4-bg);color:var(--as4)}.as5{background:var(--as5-bg);color:var(--as5)}
.as-p{background:var(--surface-2);color:var(--soft)}
.as-list{display:flex;flex-wrap:wrap;gap:6px}
.hbar{display:block;height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden;min-width:60px}
.hbar.thick{height:10px}
.hbar i{display:block;height:100%;background:var(--accent);border-radius:inherit}
.hbar i.ok{background:var(--ok)}.hbar i.warn{background:var(--warn)}
.badge{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;background:var(--surface-2);color:var(--muted);white-space:nowrap}
.b-ok{background:var(--ok-bg);color:var(--ok)}
.b-warn{background:var(--warn-bg);color:var(--warn)}
.b-bad{background:var(--bad-bg);color:var(--bad)}
.b-skip{background:var(--surface-2);color:var(--muted)}
.b-wait{background:var(--accent-soft);color:var(--accent-text)}
.grade{font-size:56px;font-weight:700;line-height:1;font-family:var(--mono)}
.g-A{color:var(--ok)}.g-B{color:var(--warn)}.g-C,.g-D,.g-F{color:var(--bad)}
.kv{display:grid;grid-template-columns:220px minmax(0,1fr);margin:0}
.kv>dt,.kv>dd{margin:0;padding:9px 16px;border-bottom:1px solid var(--row)}
.kv>dt{color:var(--muted);font-size:13px}
.kv>dd{font-family:var(--mono);font-size:13px;word-break:break-all}
.kv>dt:last-of-type,.kv>dd:last-of-type{border-bottom:0}
.kv.two-col{grid-template-columns:220px minmax(0,1fr) 220px minmax(0,1fr)}
.kv.hdrs dt{color:var(--accent-text);font-family:var(--mono)}
.kv.bin .nb{color:var(--accent-text)}
.kv.bin .hb{color:var(--muted)}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:12px}

/* 9 Map ------------------------------------------------------------------ */
.map-card{overflow:hidden}
.legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;font-size:13px;font-weight:400;color:var(--soft)}
.map-card .map{margin:16px;width:auto;background:transparent}
.legend>*{display:inline-flex;align-items:center;gap:6px}
.legend .pin{position:static;transform:none;cursor:default;flex:none}
.map{position:relative;direction:ltr;aspect-ratio:1000/470;width:100%;background:var(--sunken)}
.map-svg{position:absolute;inset:0}
.map-svg svg{display:block;width:100%;height:100%;fill:var(--land);stroke:var(--land-stroke);stroke-width:.5}
.map-pins{position:absolute;inset:0}
.pin{position:absolute;width:14px;height:14px;padding:0;margin:0;border:2px solid var(--surface);border-radius:50%;background:var(--muted);cursor:pointer;transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(147,160,175,.25)}
/* Bigger hit area, only for the real map pins: the legend copies are position:static, so an
   absolute ::after on them would size against the viewport and cover the whole page top. */
.map-pins .pin::after{content:"";position:absolute;inset:-14px}
.pin.match{background:var(--ok);border-color:var(--ok);box-shadow:0 0 0 4px rgba(63,207,142,.25)}
.pin.diff{width:12px;height:12px;border-radius:2px;background:var(--warn);border-color:var(--warn);box-shadow:0 0 0 4px rgba(242,181,68,.25);transform:translate(-50%,-50%) rotate(45deg)}
.legend .pin.diff{transform:rotate(45deg)}
.pin.fail{background:var(--surface);border-color:var(--bad);box-shadow:0 0 0 4px rgba(255,114,114,.22)}
.pin.wait{background:var(--muted);border-color:var(--surface);animation:pulse 1.4s ease-in-out infinite}
.pin:hover,.pin:focus-visible{z-index:5}
.map-tip{position:absolute;transform:translate(-50%,calc(-100% - 14px));z-index:10;display:flex;flex-direction:column;gap:4px;min-width:220px;max-width:300px;padding:10px 12px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);font-size:13px;pointer-events:none;direction:inherit}

/* 10 Tables -------------------------------------------------------------- */
.table-wrap{overflow-x:auto;max-width:100%}
.tbl{width:100%;border-collapse:collapse;min-width:720px;font-size:14px}
.tbl th,.ports-table th{padding:10px 12px;text-align:start;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border-bottom:1px solid var(--border);white-space:nowrap}
.tbl td,.ports-table td{padding:10px 12px;border-bottom:1px solid var(--row);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:var(--surface-2)}
.tbl th.c,.tbl td.c{text-align:center}
.w-lat{width:160px}
.loc{display:flex;align-items:center;gap:6px;min-width:0}
.ports-table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}

/* 11 Tiles and grids ----------------------------------------------------- */
.tiles{display:grid;gap:12px}
.tiles.six{grid-template-columns:repeat(6,1fr)}
.tiles.four{grid-template-columns:repeat(4,1fr)}
.tiles.three{grid-template-columns:repeat(3,1fr)}
.tile{display:flex;flex-direction:column;gap:4px;min-width:0;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);font-size:13px;color:var(--muted)}
.tile b{display:block;font-size:24px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;line-height:1.2}
.tiles.four .tile:first-child b{font-size:18px}
.tile b small{font-size:13px;font-weight:400;color:var(--muted);margin-inline-start:2px}
.tile.row{flex-direction:row;align-items:center;gap:12px}
.groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}
.groups:empty{display:none}
.group{padding:14px 16px;display:flex;align-items:center;gap:14px}
.group .ic{width:34px;height:34px;font-size:15px}
.grow{flex:1;min-width:0}
.big-n{display:flex;flex-direction:column;align-items:flex-end;line-height:1.1}
.big-n b{font-size:22px;font-weight:700}
.big-n span{font-size:12px;color:var(--muted)}
.chain{display:flex;align-items:stretch;gap:12px}
.chain>.card{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.chain>.card b{overflow-wrap:anywhere}
.chain .arrow{flex:none;align-self:center;color:var(--muted);font-size:20px}
[dir=rtl] .chain .arrow{transform:scaleX(-1)}
.port-grid,.rec-grid,.checks{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.checks.one{grid-template-columns:1fr}
.port-grid>*,.rec-grid>*,.checks>*{min-width:0}
.port{display:flex;align-items:center;gap:12px;padding:12px 16px}
.pnum{font-weight:600;font-size:16px;min-width:56px}
.rec{display:flex;flex-direction:column;gap:8px}
.rec .rec-h{display:flex;align-items:center;gap:10px;font-weight:600}
.rec .rec-h>:last-child{margin-inline-start:auto;font-weight:400}
.rec pre{margin:0;padding:8px 10px;background:var(--sunken);border:1px solid var(--row);border-radius:8px;white-space:pre-wrap;word-break:break-all;font-size:13px;color:var(--soft)}
.card>.checks,.card>.protos{padding:12px}
.bl-ip{padding:14px 16px 8px}
.bl-grid{padding:0 16px 14px}
.counts{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--soft)}
.check{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);min-width:0}
.protos{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.proto{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface-2);font-size:13px;font-weight:600;text-align:center}
.bl-ip{font-size:16px;font-weight:600}
.bl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.bl{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface);font-size:13px;min-width:0}
.bl.listed{background:var(--bad-bg);border-color:var(--bad);color:var(--bad)}
.myip{display:flex;flex-direction:column;gap:8px}
.ip-big{font-family:var(--mono);font-size:40px;font-weight:600;line-height:1.2;overflow-wrap:anywhere}
.hist-row{display:grid;grid-template-columns:minmax(120px,auto) minmax(0,1fr) 48px;align-items:center;gap:14px;padding:9px 16px;color:var(--text);text-decoration:none;font-size:13px}
.hist-row:hover{background:var(--surface-2)}
.hist-row .hbar{height:10px;background:var(--warn-bg)}
.hist-row .hbar i{background:var(--ok)}
.hist-row>:last-child{text-align:end}
.status{display:flex;flex-direction:column;gap:14px}
.status-h{display:flex;align-items:center;gap:14px}
.status-h .ic{width:48px;height:48px;font-size:22px}
.status-h h2{font-size:22px;font-weight:700}
.days{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.days b{font-size:40px;font-weight:700;line-height:1;letter-spacing:-.02em}
.days b small{font-size:16px;font-weight:500;color:var(--muted);letter-spacing:0}

/* 12 Charts / traceroute / http ------------------------------------------ */
.chart{position:relative;display:flex;align-items:flex-end;gap:6px;height:220px;padding-top:24px;margin-bottom:28px;border-bottom:1px solid var(--border)}
.chart .col{position:relative;flex:1;min-width:0;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}
.chart .col i{display:block;width:100%;max-width:36px;min-height:2px;background:var(--accent);border-radius:4px 4px 0 0}
.chart .col i.hi{background:var(--warn)}
.chart .col i.lost{height:100%!important;background:transparent;border:1px dashed var(--bad);border-bottom:0}
.chart .v{position:absolute;inset-inline:0;text-align:center;font-size:11px;font-family:var(--mono);color:var(--muted);transform:translateY(-100%);bottom:var(--h,0)}
.chart .col .v{position:static;transform:none;order:-1;margin-bottom:4px}
.chart .x{position:absolute;top:100%;margin-top:6px;font-size:11px;color:var(--muted);font-family:var(--mono)}
.chart .avg{position:absolute;left:0;right:0;border-top:1px dashed var(--accent);pointer-events:none}
.term{overflow:hidden}
.term pre,.raw pre{margin:0;padding:14px 16px;background:var(--sunken);color:var(--soft);font-size:13px;line-height:1.6;overflow-x:auto;white-space:pre}
.raw pre{white-space:pre-wrap;word-break:break-all}
.hop{display:grid;grid-template-columns:24px 64px minmax(0,1fr) auto;gap:14px;align-items:center;width:100%;min-height:56px;padding:10px 16px;border:0;border-top:1px solid var(--row);background:transparent;color:inherit;text-align:start;cursor:pointer;font:inherit}
.hop:first-child{border-top:0}
.hop:hover{background:var(--surface-2)}
.hop.sel,.hop.sel:hover{background:var(--accent-soft)}
.hop .badge{justify-content:center}
#htiming{display:flex;flex-direction:column;gap:12px}
#htiming h2{font-size:16px}
.tbar{display:flex;height:12px;border-radius:999px;overflow:hidden;background:var(--surface-2)}
.tbar>*{display:block;height:100%}
.tlegend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--soft)}
.tlegend>*{display:inline-flex;align-items:center;gap:6px}
.tlegend>*::before{content:"";width:10px;height:10px;border-radius:2px;background:currentColor}
.tm-dns{background:var(--tm-dns);color:var(--tm-dns)}
.tm-connect{background:var(--tm-connect);color:var(--tm-connect)}
.tm-tls{background:var(--tm-tls);color:var(--tm-tls)}
.tm-ttfb{background:var(--tm-ttfb);color:var(--tm-ttfb)}
.tlegend .tm-dns,.tlegend .tm-connect,.tlegend .tm-tls,.tlegend .tm-ttfb{background:none}

/* 14 Articles / prose ---------------------------------------------------- */
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.article{display:flex;flex-direction:column;gap:16px;min-width:0}
.article-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start}
.toc{position:sticky;top:16px;padding:16px;font-size:14px}
.toc ul,.toc ol{margin:8px 0 0;padding-inline-start:18px}
.toc li{margin-block:6px}
.toc a{color:var(--soft)}
.prose{max-width:75ch;color:var(--soft);font-size:16px;line-height:1.7;min-width:0}
.prose h2{font-size:22px;color:var(--text);margin-top:2em;margin-bottom:.6em;scroll-margin-top:24px}
.prose h3{font-size:18px;color:var(--text);margin-top:1.6em;margin-bottom:.5em;scroll-margin-top:24px}
.prose>:first-child{margin-top:0}
.prose p{margin-block:0 1em}
.prose ul,.prose ol{margin-block:0 1em;padding-inline-start:1.5em}
.prose li{margin-block:.35em}
.prose strong{color:var(--text)}
.prose table{width:100%;border-collapse:collapse;margin-block:1em;font-size:14px;display:block;overflow-x:auto}
.prose th{padding:10px 12px;text-align:start;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border-bottom:1px solid var(--border)}
.prose td{padding:10px 12px;border-bottom:1px solid var(--row);vertical-align:top}
.prose pre{margin-block:1em;padding:14px 16px;background:var(--sunken);border:1px solid var(--border);border-radius:var(--r);overflow-x:auto;font-size:13px;line-height:1.6;color:var(--text);direction:ltr;text-align:left}
.prose code{padding:2px 6px;border-radius:5px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);font-size:.88em}
.prose pre code{padding:0;border:0;background:none;font-size:inherit}
.prose a{color:var(--accent-text)}
.prose aside.callout{margin-block:1.2em;padding:12px 16px;background:var(--accent-soft);border:1px solid var(--border);border-radius:var(--r);color:var(--text)}
.prose aside.callout>:last-child{margin-bottom:0}

/* 15 Footer -------------------------------------------------------------- */
.foot{background:var(--top);border-top:1px solid var(--border);color:var(--muted);font-size:13px}
.foot-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px 32px;padding-block:24px}
.foot a{color:var(--soft);text-decoration:none}
.foot a:hover{text-decoration:underline}
.foot h2{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
:lang(ar) .foot h2{letter-spacing:0}
.foot ul{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:6px}
.foot-about p{margin-top:8px}
.related ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.related li span{display:block;color:var(--muted);font-size:13px}
.foot-about{max-width:60ch}

/* 16 Responsive / motion ------------------------------------------------- */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(147,160,175,.2)}50%{box-shadow:0 0 0 8px rgba(147,160,175,.05)}}

@media (max-width:1100px){
  .tiles.six{grid-template-columns:repeat(3,1fr)}
  .kv.two-col{grid-template-columns:220px minmax(0,1fr)}
  .bl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .tools-nav{display:none}
  .menu{display:block}
  .top-in{flex-wrap:wrap}
  .top-end{margin-inline-start:auto}
  body.nav-open .tools-nav{display:flex;order:10;flex:0 0 100%;flex-wrap:wrap;gap:6px;padding-block:8px 14px;border-top:1px solid var(--border)}
  body.nav-open .tools-nav a{border:1px solid var(--border)}
  .article-grid{grid-template-columns:1fr}
  .toc{position:static}
  .two,.two.wide-first{grid-template-columns:1fr}
  .tiles.four{grid-template-columns:repeat(2,1fr)}
  .protos{grid-template-columns:repeat(2,1fr)}
  .chain{flex-direction:column}
  .chain .arrow{transform:rotate(90deg)}
  [dir=rtl] .chain .arrow{transform:rotate(90deg)}
  .hero h1{font-size:30px}
}
@media (max-width:760px){
  .form,.g-dns,.g-ping,.g-trace,.g-ssl,.g-ports,.g-http,.g-mail{grid-template-columns:minmax(0,1fr);align-items:stretch}
  .form>.btn{width:100%}
  .form .row .btn{flex:none;padding:0 12px}
  .port-grid,.rec-grid,.checks{grid-template-columns:1fr}
  .kv,.kv.two-col{grid-template-columns:minmax(0,1fr)}
  .kv>dt{padding-block:10px 0;border-bottom:0}
  .kv>dd{padding-block:2px 10px}
  .ip-big{font-size:30px}
}
@media (max-width:600px){
  .wrap{padding-inline:16px}
  .main{padding-block:24px 48px}
  h1,.hero h1{font-size:26px}
  .myip-chip{display:none}
  .tiles.six,.tiles.three{grid-template-columns:repeat(2,1fr)}
  .bl-grid{grid-template-columns:1fr}
  .tool-grid,.tool-grid.big{grid-template-columns:1fr}
  .map-tip{min-width:180px;max-width:220px}
  .chart{gap:3px}
  .prose{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .ic-wait{border-top-color:var(--accent)}
}