/* ---------------------------------------------------------
   Fonts (self-hosted, latin subsets)
   --------------------------------------------------------- */
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;src:url("./assets/fonts/IBMPlexSans-400-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:500;font-display:swap;src:url("./assets/fonts/IBMPlexSans-500-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:600;font-display:swap;src:url("./assets/fonts/IBMPlexSans-600-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:700;font-display:swap;src:url("./assets/fonts/IBMPlexSans-700-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:400;font-display:swap;src:url("./assets/fonts/IBMPlexMono-400-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:500;font-display:swap;src:url("./assets/fonts/IBMPlexMono-500-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,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-style:normal;font-weight:600;font-display:swap;src:url("./assets/fonts/IBMPlexMono-600-latin.woff2") format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ---------------------------------------------------------
   Tokens
   --------------------------------------------------------- */
:root{
  --bg:#06100f;
  --bg-deep:#040b0a;
  --panel:rgba(255,255,255,.035);
  --panel-solid:#0b1917;
  --line:rgba(140,208,192,.13);
  --line-soft:rgba(140,208,192,.07);
  --line-strong:rgba(140,208,192,.28);
  --ink:#e9f4f0;
  --ink-2:#a7c1ba;
  --muted:#6d8a83;
  --mint:#61f0c3;
  --mint-soft:rgba(97,240,195,.14);
  --v4:#93aab9;
  --amber:#ffc266;
  --red:#ff7d7d;
  --sans:'IBM Plex Sans','PingFang SC','Hiragino Sans GB','Noto Sans SC','Microsoft YaHei',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);
  --r-lg:22px;
  --r-md:14px;
  --r-sm:9px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.9);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scrollbar-color:var(--line-strong) transparent;
}

body{
  min-height:100dvh;
  background:
    radial-gradient(1100px 680px at 78% -12%, rgba(38,140,116,.22), transparent 62%),
    radial-gradient(760px 520px at 4% 8%, rgba(34,84,120,.16), transparent 68%),
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:clamp(15px,1.05vw + 11px,17px);
  line-height:1.6;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

::selection{background:rgba(97,240,195,.28);color:#fff}

:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
  border-radius:4px;
}

a{color:inherit}
button{font:inherit;color:inherit}

/* Live network backdrop */
#backdrop{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
  opacity:.7;
  mask-image:radial-gradient(120% 90% at 50% 0%, #000 38%, transparent 82%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%, #000 38%, transparent 82%);
}

.grain{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------
   Shell & shared
   --------------------------------------------------------- */
.shell{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  min-height:100dvh;
}

.wrap{
  width:min(1140px, 100% - clamp(32px,7vw,96px));
  margin-inline:auto;
}

.mono{font-family:var(--mono);font-feature-settings:"zero" 1}

.skip-link{
  position:absolute;
  left:16px;
  top:-60px;
  z-index:10;
  padding:.6em 1em;
  border-radius:0 0 10px 10px;
  background:var(--mint);
  color:#04120e;
  font-size:.82rem;
  font-weight:600;
  text-decoration:none;
  transition:top .25s var(--ease-out);
}

.skip-link:focus-visible{top:0}

.topbar{
  padding-block:clamp(18px,3vw,30px);
}

.topbar .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-family:var(--mono);
  font-size:.82rem;
  letter-spacing:.16em;
  color:var(--ink-2);
  text-decoration:none;
}

.brand-mark{
  position:relative;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;
  place-items:center;
}

.brand-mark::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 12px rgba(97,240,195,.9);
  animation:beacon 2.8s var(--ease-out) infinite;
}

.brand-mark::after{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:50%;
  border:1px solid var(--mint);
  opacity:0;
  animation:ripple 2.8s var(--ease-out) infinite;
}

@keyframes beacon{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.55;transform:scale(.8)}
}
@keyframes ripple{
  0%{opacity:.5;transform:scale(.9)}
  70%,100%{opacity:0;transform:scale(1.9)}
}

.nav{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,30px);
  flex-wrap:wrap;
}

.nav a{
  position:relative;
  color:var(--muted);
  text-decoration:none;
  font-size:.88rem;
  padding-block:4px;
  transition:color .3s ease;
}

.nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:right;
  transition:transform .45s var(--ease-out);
}

.nav a:hover{color:var(--ink)}
.nav a:hover::after{transform:scaleX(1);transform-origin:left}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero{
  padding-block:clamp(26px,5vw,64px) clamp(30px,5vw,58px);
}

.hero .wrap{
  display:grid;
  grid-template-columns:minmax(0,1.18fr) minmax(260px,.82fr);
  align-items:center;
  gap:clamp(32px,5vw,72px);
}

.hero-copy{min-width:0;position:relative}

.hero h1{
  font-size:clamp(2.15rem, 5.4vw, 4.1rem);
  line-height:1.06;
  font-weight:600;
  letter-spacing:-.035em;
  text-wrap:balance;
}

.hero h1 .line{
  display:block;
  overflow:hidden;
}

.hero h1 .line > span{
  display:block;
  transform:none;
  transition:transform 1.05s var(--ease-out);
  transition-delay:calc(var(--i,0) * 110ms);
}

html.js .hero h1 .line > span{transform:translateY(112%)}
html.js.ready .hero h1 .line > span{transform:none}

.hero h1 .sub-line{
  font-size:.44em;
  font-weight:400;
  color:var(--ink-2);
  letter-spacing:-.01em;
  margin-top:.55em;
}

.hero p.lede{
  margin-top:clamp(18px,2.4vw,26px);
  max-width:44ch;
  color:var(--ink-2);
  font-size:clamp(.95rem, .5vw + .8rem, 1.06rem);
  line-height:1.75;
  opacity:1;
  transform:none;
  transition:opacity .9s var(--ease-out) .5s, transform .9s var(--ease-out) .5s;
}

html.js .hero p.lede{opacity:0;transform:translateY(14px)}
html.js.ready .hero p.lede{opacity:1;transform:none}

.hero p.lede code{
  font-family:var(--mono);
  font-size:.9em;
  color:var(--mint);
  background:var(--mint-soft);
  padding:.08em .38em;
  border-radius:5px;
}

.hero-actions{
  margin-top:clamp(24px,3vw,34px);
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,22px);
  flex-wrap:wrap;
  opacity:1;
  transform:none;
  transition:opacity .9s var(--ease-out) .65s, transform .9s var(--ease-out) .65s;
}

html.js .hero-actions{opacity:0;transform:translateY(14px)}
html.js.ready .hero-actions{opacity:1;transform:none}

.btn{
  --btn-bg:var(--mint);
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:.82em 1.5em;
  border:0;
  border-radius:999px;
  background:var(--btn-bg);
  color:#04120e;
  font-weight:600;
  font-size:.93rem;
  letter-spacing:.005em;
  cursor:pointer;
  overflow:hidden;
  transition:transform .35s var(--ease-out), box-shadow .35s var(--ease-out), background .3s ease;
  box-shadow:0 14px 34px -16px rgba(97,240,195,.85);
}

.btn::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg, transparent 30%, rgba(255,255,255,.55) 48%, transparent 62%);
  transform:translateX(-130%);
  transition:transform .75s var(--ease-out);
}

.btn:hover{transform:translateY(-2px);box-shadow:0 20px 46px -18px rgba(97,240,195,.95)}
.btn:hover::after{transform:translateX(130%)}
.btn:active{transform:translateY(0) scale(.985)}

.btn .spin{
  width:15px;
  height:15px;
  border-radius:50%;
  border:1.6px solid rgba(4,18,14,.35);
  border-top-color:#04120e;
  display:none;
  animation:spin .75s linear infinite;
}

.btn[data-busy="true"]{cursor:progress;opacity:.88}
.btn[data-busy="true"] .spin{display:block}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:.8em 0;
  color:var(--ink-2);
  font-size:.9rem;
  text-decoration:none;
  border-bottom:1px solid var(--line-strong);
  transition:color .3s ease,border-color .3s ease;
}

.btn-ghost svg{transition:transform .4s var(--ease-out)}
.btn-ghost:hover{color:var(--mint);border-color:var(--mint)}
.btn-ghost:hover svg{transform:translateY(3px)}

.hero-note{
  margin-top:18px;
  font-size:.78rem;
  line-height:1.6;
  color:var(--muted);
  display:flex;
  align-items:flex-start;
  gap:8px;
  max-width:44ch;
}

.hero-note::before{
  content:"";
  flex:0 0 auto;
  margin-top:.45em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 10px rgba(97,240,195,.7);
  animation:beacon 3.4s ease-in-out infinite;
}

/* Gauge */
.gauge{
  justify-self:center;
  position:relative;
  width:min(300px, 74vw);
  aspect-ratio:1;
  opacity:1;
  transform:none;
  transition:opacity 1s var(--ease-out) .3s, transform 1.1s var(--ease-spring) .3s;
}

html.js .gauge{opacity:0;transform:scale(.92)}
html.js.ready .gauge{opacity:1;transform:none}

.gauge::before{
  content:"";
  position:absolute;
  inset:8%;
  border-radius:50%;
  background:radial-gradient(circle, rgba(97,240,195,.2), transparent 66%);
  filter:blur(18px);
  opacity:.7;
  transition:opacity .8s ease;
}

.gauge svg{position:relative;width:100%;height:100%;display:block;overflow:visible}

.gauge .tick{
  stroke:rgba(140,208,192,.22);
  stroke-width:2.6;
  stroke-linecap:round;
  transition:stroke .45s ease, opacity .45s ease, stroke-width .45s ease;
}

.gauge .tick.on{
  stroke:var(--mint);
  stroke-width:3.4;
  filter:drop-shadow(0 0 6px rgba(97,240,195,.75));
}

.gauge .tick.warn.on{stroke:var(--amber);filter:drop-shadow(0 0 6px rgba(255,194,102,.7))}
.gauge .tick.bad.on{stroke:var(--red);filter:drop-shadow(0 0 6px rgba(255,125,125,.65))}

.gauge .readout{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:22%;
}

.gauge .score{
  font-family:var(--mono);
  font-size:clamp(3.2rem,9vw,4.6rem);
  font-weight:600;
  line-height:1;
  letter-spacing:-.05em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:2px;
}

.gauge .score .of{
  font-size:.34em;
  font-weight:400;
  color:var(--muted);
  letter-spacing:0;
}

.gauge .verdict{
  margin-top:8px;
  font-size:.8rem;
  letter-spacing:.02em;
  color:var(--ink-2);
  min-height:1.4em;
  transition:color .4s ease;
}

.gauge[data-running="true"] .verdict{color:var(--mint)}
.gauge[data-tone="good"] .verdict{color:var(--mint)}
.gauge[data-tone="warn"] .verdict{color:var(--amber)}
.gauge[data-tone="bad"] .verdict{color:var(--red)}

.gauge .caption{
  position:absolute;
  bottom:-3%;
  left:50%;
  transform:translateX(-50%);
  font-family:var(--mono);
  font-size:.64rem;
  letter-spacing:.22em;
  color:var(--muted);
  white-space:nowrap;
}

/* rotating sweep while detection is running */
.gauge .sweep{
  transform-origin:100px 100px;
  opacity:0;
  transition:opacity .6s ease;
}

.gauge[data-running="true"] .sweep{
  opacity:1;
  animation:sweep 3.2s cubic-bezier(.45,.05,.55,.95) infinite;
}

.gauge[data-running="true"]::before{
  opacity:1;
  animation:glow 3.2s ease-in-out infinite;
}

@keyframes sweep{
  0%{transform:rotate(-135deg)}
  100%{transform:rotate(135deg)}
}

@keyframes glow{
  0%,100%{opacity:.45}
  50%{opacity:.9}
}

/* ---------------------------------------------------------
   Console
   --------------------------------------------------------- */
.console-section{
  padding-bottom:clamp(48px,7vw,92px);
}

.console{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.012) 40%, rgba(255,255,255,.02)),
    rgba(6,16,15,.55);
  backdrop-filter:blur(12px) saturate(125%);
  -webkit-backdrop-filter:blur(12px) saturate(125%);
  box-shadow:var(--shadow);
  overflow:hidden;
  opacity:1;
  transform:none;
  transition:opacity 1s var(--ease-out) .45s, transform 1s var(--ease-out) .45s;
}

html.js .console{opacity:0;transform:translateY(22px)}
html.js.ready .console{opacity:1;transform:none}

.console-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:clamp(16px,2.4vw,22px) clamp(18px,3vw,30px);
  border-bottom:1px solid var(--line-soft);
  flex-wrap:wrap;
}

.console-head h2{
  font-size:.95rem;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--ink-2);
}

.console-head .live{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--muted);
  transition:color .4s ease;
}

.console-head .live i{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--muted);
  transition:background .4s ease, box-shadow .4s ease;
}

.console[data-running="true"] .live{color:var(--mint)}
.console[data-running="true"] .live i{background:var(--mint);box-shadow:0 0 10px var(--mint);animation:beacon 1.2s ease-in-out infinite}
.console[data-running="false"] .live i{background:var(--mint);box-shadow:0 0 8px rgba(97,240,195,.6)}

.probes{
  position:relative;
  padding:clamp(6px,1vw,10px) clamp(14px,2.4vw,26px) clamp(10px,1.4vw,16px);
}

.probe{
  position:relative;
  display:grid;
  grid-template-columns:46px minmax(0,1fr);
  gap:clamp(10px,1.6vw,18px);
  padding:clamp(16px,2.4vw,24px) clamp(4px,1vw,12px);
  border-bottom:1px solid var(--line-soft);
  opacity:1;
  transform:none;
  transition:opacity .7s var(--ease-out), transform .7s var(--ease-out), background .5s ease;
}

html.js .probe:not(.in){opacity:0;transform:translateY(14px)}

.probe:last-child{border-bottom:0}

.probe.in{opacity:1;transform:none}
.probe:hover{background:rgba(255,255,255,.018)}

/* rail */
.probe-rail{
  position:relative;
  display:flex;
  justify-content:center;
  padding-top:5px;
}

.probe-step{
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.06em;
  color:var(--muted);
  width:30px;
  height:30px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  background:rgba(6,16,15,.9);
  position:relative;
  z-index:1;
  transition:color .5s ease, border-color .5s ease, background .5s ease, box-shadow .5s ease;
}

.probe[data-state="active"] .probe-step{
  color:var(--mint);
  border-color:rgba(97,240,195,.55);
  box-shadow:0 0 0 4px rgba(97,240,195,.07);
}

.probe[data-state="active"] .probe-step::after{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:50%;
  border:1px solid transparent;
  border-top-color:var(--mint);
  animation:spin 1.1s linear infinite;
}

.probe[data-state="ok"] .probe-step{
  color:#04120e;
  background:var(--mint);
  border-color:var(--mint);
  box-shadow:0 0 18px -2px rgba(97,240,195,.6);
}

.probe[data-state="fail"] .probe-step{
  color:#1a0505;
  background:var(--red);
  border-color:var(--red);
}

.probe[data-state="ok"] .probe-step::after{
  content:"✓";
  animation:pop .45s var(--ease-spring);
}

.probe[data-state="fail"] .probe-step::after{
  content:"!";
  font-weight:600;
  animation:pop .45s var(--ease-spring);
}

.probe[data-state="ok"] .probe-step{font-size:0}
.probe[data-state="fail"] .probe-step{font-size:0}
.probe[data-state="ok"] .probe-step::after,
.probe[data-state="fail"] .probe-step::after{font-size:.8rem}

@keyframes pop{
  0%{transform:scale(.2);opacity:0}
  100%{transform:scale(1);opacity:1}
}

.probe-body{min-width:0;position:relative}

.probe-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:6px;
}

.probe-title{
  font-size:1.02rem;
  font-weight:500;
  color:var(--ink);
  letter-spacing:.005em;
}

.probe-tag{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.12em;
  padding:3px 9px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  white-space:nowrap;
  transition:color .4s ease,border-color .4s ease,background .4s ease;
}

.probe[data-state="active"] .probe-tag{color:var(--mint);border-color:rgba(97,240,195,.4);background:rgba(97,240,195,.06)}
.probe[data-state="ok"] .probe-tag{color:var(--mint);border-color:rgba(97,240,195,.32)}
.probe[data-state="fail"] .probe-tag{color:var(--red);border-color:rgba(255,125,125,.35);background:rgba(255,125,125,.06)}

.probe-desc{
  color:var(--ink-2);
  font-size:.9rem;
  line-height:1.6;
  word-break:break-word;
}

.probe[data-state="active"] .probe-desc{color:var(--mint)}
.probe[data-state="fail"] .probe-desc{color:var(--red)}

/* IP readout */
.ip-row{
  display:none;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:12px;
}

.ip-row.show{display:flex;animation:rise .65s var(--ease-out) both}

.ip-value{
  font-family:var(--mono);
  font-size:clamp(.92rem,1.6vw,1.12rem);
  font-weight:500;
  letter-spacing:.01em;
  color:var(--ink);
  background:rgba(97,240,195,.07);
  border:1px solid rgba(97,240,195,.16);
  padding:.36em .7em;
  border-radius:var(--r-sm);
  word-break:break-all;
  transition:background .3s ease,border-color .3s ease;
}

.ip-row:hover .ip-value{background:rgba(97,240,195,.1);border-color:rgba(97,240,195,.3)}

.copy{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:.4em .75em;
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
  color:var(--muted);
  font-size:.74rem;
  cursor:pointer;
  transition:color .25s ease,border-color .25s ease,transform .25s var(--ease-out);
}

.copy:hover{color:var(--mint);border-color:rgba(97,240,195,.45);transform:translateY(-1px)}
.copy.done{color:var(--mint);border-color:var(--mint)}
.copy svg{width:13px;height:13px}

/* Location chip */
.loc{
  display:none;
  align-items:flex-start;
  gap:8px;
  margin-top:10px;
  max-width:100%;
  color:var(--ink-2);
  font-size:.84rem;
  line-height:1.55;
  animation:rise .65s var(--ease-out) both;
}

.loc.show{display:flex}
.loc .pin{
  flex:0 0 auto;
  width:16px;
  height:16px;
  margin-top:2px;
  color:var(--v4);
}
.loc b{font-weight:500;color:var(--muted);font-family:var(--mono);font-size:.72rem;letter-spacing:.08em}

/* section entrance — CSS only, so content is never hidden behind a missing observer */
.terminal{
  opacity:1;
  transform:none;
}

/* section polish */
.section-head .term-copy{
  padding:.55em 1em;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--ink-2);
  font-size:.78rem;
  cursor:pointer;
  transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s var(--ease-out);
}

.section-head .term-copy:hover{
  color:var(--mint);
  border-color:rgba(97,240,195,.5);
  background:rgba(97,240,195,.05);
  transform:translateY(-1px);
}

.section-head .term-copy.done{
  color:#04120e;
  background:var(--mint);
  border-color:var(--mint);
}

@keyframes rise{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:none}
}

/* Inline notice (dual-stack warning) */
.notice{
  display:flex;
  gap:10px;
  margin-top:12px;
  padding:11px 14px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,194,102,.25);
  background:rgba(255,194,102,.06);
  color:#ffd9a3;
  font-size:.86rem;
  line-height:1.6;
  animation:rise .6s var(--ease-out) both;
}

.notice svg{flex:0 0 auto;width:16px;height:16px;margin-top:2px;color:var(--amber)}

/* Error */
.err{margin-top:10px}
.err:empty{display:none}

.error-message{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  padding:11px 14px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,125,125,.24);
  background:rgba(255,125,125,.05);
  color:#ffb8b8;
  font-size:.86rem;
  line-height:1.55;
  animation:rise .5s var(--ease-out) both;
}

.retry-btn{
  flex:0 0 auto;
  padding:.42em .9em;
  border-radius:999px;
  border:1px solid rgba(255,125,125,.4);
  background:transparent;
  color:#ffc9c9;
  font-size:.78rem;
  cursor:pointer;
  transition:background .25s ease,color .25s ease,transform .25s var(--ease-out);
}

.retry-btn:hover{background:rgba(255,125,125,.12);color:#fff;transform:translateY(-1px)}

/* Tech notes — collapsible, closed by default */
.tech-notes{
  margin:0 clamp(14px,2.4vw,26px) clamp(14px,2.4vw,22px);
  border:1px solid var(--line-soft);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.012);
  overflow:hidden;
}

.tech-notes summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:13px 16px;
  cursor:pointer;
  list-style:none;
  font-size:.84rem;
  color:var(--ink-2);
  transition:color .25s ease,background .25s ease;
}

.tech-notes summary::-webkit-details-marker{display:none}

.tech-notes summary::after{
  content:"";
  width:8px;
  height:8px;
  border-right:1.5px solid var(--muted);
  border-bottom:1.5px solid var(--muted);
  transform:rotate(45deg) translateY(-2px);
  transition:transform .35s var(--ease-out),border-color .25s ease;
}

.tech-notes[open] summary::after{transform:rotate(225deg) translateY(-1px);border-color:var(--mint)}
.tech-notes summary:hover{color:var(--ink);background:rgba(255,255,255,.02)}
.tech-notes summary:focus-visible{outline-offset:-3px}

.tech-notes ul{
  list-style:none;
  padding:0 16px 16px;
  display:grid;
  gap:9px;
}

.tech-notes li{
  position:relative;
  padding-left:16px;
  color:var(--muted);
  font-size:.82rem;
  line-height:1.65;
}

.tech-notes li::before{
  content:"";
  position:absolute;
  left:0;
  top:.68em;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--line-strong);
}

.tech-notes a{color:var(--mint);text-decoration:none;border-bottom:1px solid rgba(97,240,195,.3)}
.tech-notes a:hover{border-color:var(--mint)}
.tech-notes code{
  font-family:var(--mono);
  font-size:.92em;
  color:var(--ink-2);
  background:rgba(255,255,255,.05);
  padding:.05em .35em;
  border-radius:4px;
}

/* footer meta */
.footer-meta{display:grid;gap:4px}

/* Summary bar */
.summary{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:clamp(14px,2.4vw,24px);
  align-items:center;
  margin:0 clamp(14px,2.4vw,26px) clamp(14px,2.4vw,22px);
  padding:clamp(16px,2.4vw,22px);
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(120deg, rgba(97,240,195,.07), rgba(255,255,255,.015));
  opacity:0;
  transform:translateY(12px);
  transition:opacity .8s var(--ease-out), transform .8s var(--ease-out), border-color .5s ease;
}

.summary.show{opacity:1;transform:none}

.summary-icon{
  width:44px;
  height:44px;
  border-radius:50%;
  display:grid;
  place-items:center;
  border:1px solid var(--line-strong);
  color:var(--mint);
  transition:color .4s ease,border-color .4s ease;
}

.summary-icon svg{width:20px;height:20px}

.summary[data-tone="warn"]{border-color:rgba(255,194,102,.3);background:linear-gradient(120deg, rgba(255,194,102,.08), rgba(255,255,255,.015))}
.summary[data-tone="warn"] .summary-icon{color:var(--amber);border-color:rgba(255,194,102,.4)}
.summary[data-tone="bad"]{border-color:rgba(255,125,125,.3);background:linear-gradient(120deg, rgba(255,125,125,.08), rgba(255,255,255,.015))}
.summary[data-tone="bad"] .summary-icon{color:var(--red);border-color:rgba(255,125,125,.4)}

.summary h3{
  font-size:1.02rem;
  font-weight:600;
  letter-spacing:.005em;
  margin-bottom:5px;
}

.summary p{
  color:var(--ink-2);
  font-size:.88rem;
  line-height:1.65;
}

/* ---------------------------------------------------------
   Terminal section
   --------------------------------------------------------- */
.terminal-section{
  padding-block:0 clamp(56px,8vw,110px);
}

.section-head{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:18px;
  align-items:end;
  margin-bottom:clamp(18px,3vw,28px);
}

.section-head h2{
  font-size:clamp(1.35rem,2.4vw,1.9rem);
  font-weight:600;
  letter-spacing:-.02em;
}

.section-head p{
  margin-top:8px;
  color:var(--muted);
  font-size:.9rem;
  max-width:52ch;
}

.reveal{
  opacity:1;
  transform:none;
}

/* the observer only turns this on once it is running, so content is never
   left hidden when JavaScript or IntersectionObserver is unavailable */
html.revealing .reveal{opacity:0;transform:translateY(22px)}
html.revealing .reveal.in{opacity:1;transform:none}

/* is the section already in view? hand it back to the observer, which fills it in.
   The safety-net timer would otherwise miss content below a very tall viewport. */
html.revealing .reveal{will-change:opacity,transform}

@keyframes reveal-in{
  from{opacity:0;transform:translateY(22px)}
  to{opacity:1;transform:none}
}

.terminal{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:rgba(4,11,10,.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
}

.term-bar{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:12px 16px;
  border-bottom:1px solid var(--line-soft);
  background:rgba(255,255,255,.02);
}

.term-dots{display:flex;gap:6px}
.term-dots i{width:9px;height:9px;border-radius:50%;background:rgba(140,208,192,.22)}
.term-dots i:nth-child(1){background:rgba(255,125,125,.5)}
.term-dots i:nth-child(2){background:rgba(255,194,102,.5)}
.term-dots i:nth-child(3){background:rgba(97,240,195,.55)}

.term-title{
  font-family:var(--mono);
  font-size:.74rem;
  letter-spacing:.1em;
  color:var(--muted);
}

.term-copy{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:.36em .8em;
  border-radius:999px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  font-size:.72rem;
  cursor:pointer;
  transition:color .25s ease,border-color .25s ease;
}
.term-copy:hover{color:var(--mint);border-color:rgba(97,240,195,.45)}
.term-copy.done{color:var(--mint);border-color:var(--mint)}

.code{
  margin:0;
  padding:clamp(16px,2.6vw,26px) clamp(16px,2.6vw,26px) clamp(20px,3vw,30px);
  overflow-x:auto;
  font-family:var(--mono);
  font-size:clamp(.74rem,1.05vw,.86rem);
  line-height:1.95;
  color:#d4e6e1;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}

.code code{display:block;min-width:max-content}
.code .cmt{color:#5c7a73}
.code .cmd{color:var(--mint)}
.code .flag{color:#a9c2bb}
.code .uri{color:#9fd8ff}
.code .code-line{display:block;transition:background .25s ease}
.code .code-line:hover{background:rgba(97,240,195,.05)}
.code .ln{display:inline-block;width:2ch;color:rgba(140,208,192,.25);user-select:none}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.footer{
  margin-top:auto;
  border-top:1px solid var(--line-soft);
  padding-block:clamp(22px,3.4vw,34px);
}

.footer .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px 28px;
  flex-wrap:wrap;
}

.footer p{
  color:var(--muted);
  font-size:.8rem;
}

.footer nav{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,26px);
  flex-wrap:wrap;
}

.footer nav a{
  color:var(--ink-2);
  font-size:.84rem;
  text-decoration:none;
  transition:color .25s ease;
}
.footer nav a:hover{color:var(--mint)}

/* ---------------------------------------------------------
   Motion keyframes
   --------------------------------------------------------- */
@keyframes spin{to{transform:rotate(360deg)}}

@keyframes scan{
  0%{transform:translateX(-100%);opacity:0}
  15%{opacity:1}
  100%{transform:translateX(100%);opacity:0}
}

.probe[data-state="active"] .probe-body::after{
  content:"";
  position:absolute;
  inset:-6px -10px;
  pointer-events:none;
  background:linear-gradient(100deg, transparent 20%, rgba(97,240,195,.07) 50%, transparent 80%);
  animation:scan 2.2s var(--ease-out) infinite;
}

html.ready .hero h1 .line > span{transform:none}
html.ready .hero .lede,
html.ready .hero-actions{opacity:1;transform:none}
html.ready .gauge{opacity:1;transform:none}

/* ---------------------------------------------------------
   Responsive
   --------------------------------------------------------- */
@media (max-height:820px) and (min-width:961px){
  .hero{padding-block:18px 30px}
  .hero .wrap{gap:clamp(28px,4vw,56px)}
  .hero p.lede{margin-top:18px;line-height:1.7}
  .hero-actions{margin-top:22px}
  .gauge{width:min(268px,66vw)}
}

@media (min-width:961px) and (max-width:1180px){
  .hero h1{font-size:clamp(2.1rem,4.6vw,3.2rem)}
}

@media (max-width:960px){
  .hero .wrap{
    grid-template-columns:minmax(0,1fr);
    gap:clamp(26px,5vw,44px);
  }
  .hero-copy{order:1}
  .gauge{
    order:2;
    width:min(260px,64vw);
  }
  .hero p.lede{max-width:none}
  .section-head{grid-template-columns:1fr}
}

@media (max-width:720px){
  body{font-size:15px}
  .topbar .wrap{gap:14px}
  .nav{gap:16px;font-size:.82rem}
  .nav a{font-size:.82rem}
  .hero{padding-block:18px 30px}
  .hero h1{font-size:clamp(1.95rem,8.4vw,2.6rem)}
  .hero p.lede{font-size:.94rem}
  .hero-actions{gap:14px}
  .btn{width:100%;padding:.95em 1.5em}
  .btn-ghost{padding-top:0}
  .gauge{width:min(230px,62vw)}
  .gauge .caption{font-size:.56rem;letter-spacing:.18em}
  .console{
    border-radius:18px;
    background:rgba(9,22,20,.92);
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .terminal{background:rgba(5,13,12,.94);backdrop-filter:none;-webkit-backdrop-filter:none}
  .console-head{padding:14px 16px}
  .probes{padding:4px 10px 8px}
  .probe{grid-template-columns:34px minmax(0,1fr);gap:11px;padding:16px 4px}
  .probe-step{width:26px;height:26px;font-size:.64rem}
  .probe-top{gap:8px}
  .probe-title{font-size:.96rem}
  .probe-tag{font-size:.62rem;padding:2px 8px}
  .ip-value{font-size:.88rem;width:100%}
  .copy{font-size:.72rem}
  .summary{grid-template-columns:1fr;gap:12px;padding:16px;margin:0 10px 12px}
  .summary-icon{width:38px;height:38px}
  .section-head h2{font-size:1.3rem}
  .term-bar{padding:10px 12px;flex-wrap:wrap}
  .term-title{display:none}
  .code{
    font-size:.72rem;
    line-height:1.9;
    white-space:pre-wrap;
    overflow-wrap:anywhere;
  }
  .code code{min-width:0}
  .footer .wrap{flex-direction:column;align-items:flex-start;gap:14px}
}

@media (max-width:420px){
  .wrap{width:calc(100% - 28px)}
  .brand span.label{display:none}
  .gauge{width:min(210px,68vw)}
  .probe{grid-template-columns:1fr;gap:10px}
  .probe-rail{justify-content:flex-start;padding-top:0}
  .probe-step{width:24px;height:24px}
  .code{font-size:.68rem}
}

/* Landscape phones / short viewports */
@media (max-height:520px) and (orientation:landscape){
  .hero{padding-block:14px 24px}
  .gauge{width:min(190px,38vw)}
}

/* Touch */
@media (hover:none){
  .btn:hover{transform:none}
  .probe:hover{background:transparent}
}

/* ---------------------------------------------------------
   Reduced motion
   --------------------------------------------------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .hero h1 .line > span{transform:none}
  .hero .lede,.hero-actions,.gauge,.console,.summary,.reveal,.probe{
    opacity:1 !important;
    transform:none !important;
  }
  #backdrop{display:none}
}

/* horizontal-scroll hint for the command block on narrow screens */
.terminal::after{
  content:"";
  position:absolute;
  top:44px;
  right:0;
  bottom:0;
  width:44px;
  pointer-events:none;
  opacity:0;
  background:linear-gradient(90deg, transparent, rgba(4,11,10,.92));
  transition:opacity .3s ease;
}

.terminal[data-scrollable="true"]::after{opacity:1}

@media (min-width:721px){
  .terminal::after{display:none}
}