/* =========================================================================
   DotIgo — design tokens (DOT|GO visual identity)
   Palette:  bg #FFFFFF · bg-soft #F7F8FD · surface #F1F3FB
             border #E7EAF6 · text #171923 · muted #6B7280
             primary (DOT|GO blue) #1937BA · primary-dark #12297F
             primary-tint #E8ECFB
             ok #1DA463 · warn #C77A11 · danger #D6432F
   Display face: Poppins (rounded geometric, matches the DOT|GO wordmark)
   Body: Inter · Data/mono: JetBrains Mono (kept for technical output only)
   Signature element: soft looping "route lines" behind the hero — a nod to
   a domain's path across the network — rendered faint and pale blue.
   ========================================================================= */

:root{
  --bg:#FFFFFF;
  --bg-soft:#F7F8FD;
  --surface:#F1F3FB;
  --surface-2:#EAEDF9;
  --border:#E7EAF6;
  --text:#171923;
  --muted:#6B7280;
  --primary:#1937BA;
  --primary-dark:#12297F;
  --primary-tint:#E8ECFB;
  --ok:#1DA463;
  --ok-tint:#E4F7EE;
  --warn:#C77A11;
  --warn-tint:#FBF0DD;
  --danger:#D6432F;
  --danger-tint:#FBE7E3;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 1px 2px rgba(23,25,35,.04), 0 8px 24px -12px rgba(25,55,186,.14);
  --font-display:'Poppins', system-ui, sans-serif;
  --font-body:'Inter', system-ui, sans-serif;
  --font-mono:'JetBrains Mono', ui-monospace, monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.18;margin:0 0 .5em;color:var(--text);}
p{margin:0 0 1em;color:var(--muted);}
code, .mono{font-family:var(--font-mono);}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px;}

::selection{background:var(--primary-tint);color:var(--primary-dark);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ---- header ---- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.brand{display:flex;align-items:center;}
.brand-logo{height:38px;width:auto;display:block;}
.main-nav{display:flex;gap:30px;font-size:.95rem;font-weight:500;color:#373D4D;margin-right:auto;margin-left:36px;}
.main-nav a{transition:color .15s ease;white-space:nowrap;}
.main-nav a:hover{color:var(--primary);}
.lang-switch{display:flex;gap:2px;font-size:.78rem;font-weight:600;letter-spacing:.02em;background:var(--surface);border-radius:999px;padding:3px;}
.lang-link{padding:6px 11px;border-radius:999px;color:var(--muted);}
button.lang-link{background:none;border:0;font:inherit;cursor:pointer;}
.hero-tags .tag-btn{background:none;border:0;font:inherit;cursor:pointer;padding:0;color:inherit;}
.hero-tags .tag-btn.active{color:var(--primary);}
.hero-tags .tag-btn:hover{color:var(--primary);}
.lang-link:hover{color:var(--text);}
.lang-link.active{color:#fff;background:var(--primary);}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{width:22px;height:2px;background:var(--text);display:block;}

@media (max-width: 1980px){
  .main-nav{
    position:absolute;top:76px;left:0;right:0;margin:0;
    flex-direction:column;gap:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;
    transition:max-height .25s ease;
    box-shadow:var(--shadow);
  }
  .main-nav.open{max-height:420px;}
  .main-nav a{padding:14px 24px;border-top:1px solid var(--border);}
  .nav-toggle{display:flex;}
}

/* ---- hero ---- */
.hero{position:relative;padding:76px 0 48px;overflow:hidden;text-align:center;background:var(--bg-soft);}
.hero .wrap{position:relative;z-index:1;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 8% 20%, rgba(25,55,186,.07), transparent 45%),
    radial-gradient(circle at 92% 15%, rgba(25,55,186,.06), transparent 40%),
    repeating-radial-gradient(circle at 12% 90%, transparent 0 26px, rgba(25,55,186,.05) 27px, transparent 28px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:.8rem;color:var(--primary);
  border:1px solid var(--primary-tint);background:var(--primary-tint);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(25,55,186,.16);animation:blink 1.8s infinite;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:.35;}}
.hero h1{font-size:clamp(2rem,4.2vw,3rem);max-width:22ch;letter-spacing:-.01em;margin:0 auto .5em;}
.hero h1 .accent{color:var(--primary);}
.hero-sub{font-size:1.05rem;max-width:52ch;margin:0 auto 34px;color:var(--muted);}

/* quick lookup bar on home — rounded-rect search, DOT|GO style */
.quick-form{
  display:flex;gap:0;flex-wrap:wrap;margin:0 auto;max-width:720px;
  background:#fff;border:1.5px solid var(--border);border-radius:var(--radius);
  padding:6px;box-shadow:var(--shadow);
}
.quick-form input[type="text"]{
  flex:1 1 220px;
  background:transparent;border:0;color:var(--text);
  padding:12px 18px;font-family:var(--font-body);font-size:.98rem;border-radius:calc(var(--radius) - 6px);
}
.quick-form input[type="text"]::placeholder{color:#9CA3AF;}
.quick-form input[type="text"]:focus{outline:none;}
.quick-form select{
  background:var(--surface);border:0;color:var(--text);
  padding:12px 16px;border-radius:calc(var(--radius) - 6px);font-family:var(--font-body);font-size:.88rem;margin:0 6px;
}
.quick-form .btn{border-radius:calc(var(--radius) - 6px);white-space:nowrap;}

.hero-tags{
  display:flex;gap:14px;flex-wrap:wrap;justify-content:center;align-items:center;
  margin-top:20px;font-size:.85rem;font-weight:600;color:#4B5266;
}
.hero-tags .sep{width:4px;height:4px;border-radius:50%;background:var(--primary);display:inline-block;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;font-weight:600;
  padding:13px 24px;border-radius:var(--radius);border:0;cursor:pointer;
  font-family:var(--font-body);font-size:.95rem;transition:background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.btn:hover{background:var(--primary-dark);}
.btn:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--text);border:1.5px solid var(--border);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn[disabled]{opacity:.6;cursor:progress;}
.btn-block{width:100%;}

/* ---- tool grid on home ---- */
.section{padding:64px 0;}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:end;margin-bottom:40px;}
.section-head h2{font-size:2rem;max-width:14ch;}
.section-head p.muted{font-size:.98rem;margin:0;max-width:44ch;justify-self:end;text-align:left;}
@media (max-width:720px){
  .section-head{grid-template-columns:1fr;}
  .section-head p.muted{justify-self:start;}
}

.grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(260px,1fr));gap:20px;}

.tool-card{
  background:var(--surface);border:1px solid transparent;border-radius:var(--radius-lg);
  padding:28px;display:flex;flex-direction:column;gap:12px;
  transition:transform .15s ease, box-shadow .15s ease;
  position:relative;overflow:hidden;
}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.tool-card .idx{font-family:var(--font-body);font-weight:700;color:var(--primary);font-size:.78rem;letter-spacing:.06em;}
.tool-card h3{font-size:1.16rem;margin:0;}
.tool-card p{font-size:.92rem;margin:0;flex:1;color:var(--muted);}
.tool-card .go{font-family:var(--font-body);font-weight:600;font-size:.85rem;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}

/* alternate cards solid blue, DOT|GO card-pair style */
.tool-card:nth-child(3n+2){background:var(--primary);}
.tool-card:nth-child(3n+2) h3,
.tool-card:nth-child(3n+2) .idx{color:#fff;}
.tool-card:nth-child(3n+2) p{color:rgba(255,255,255,.78);}
.tool-card:nth-child(3n+2) .go{color:#fff;}

/* ---- generic tool page layout ---- */
.tool-hero{padding:52px 0 28px;border-bottom:1px solid var(--border);background:var(--bg-soft);}
.tool-hero .idx{font-family:var(--font-body);font-weight:700;color:var(--primary);font-size:.82rem;letter-spacing:.04em;}
.tool-hero h1{font-size:clamp(1.6rem,3.2vw,2.3rem);margin-top:8px;}
.tool-hero p{max-width:60ch;}

.tool-form{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;margin:32px 0;box-shadow:var(--shadow);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:8px;font-weight:600;}
.field input[type="text"], .field input[type="url"], .field select{
  width:100%;background:var(--bg-soft);border:1.5px solid var(--border);color:var(--text);
  padding:13px 15px;border-radius:10px;font-family:var(--font-body);font-size:.95rem;
}
.field input:focus, .field select:focus{border-color:var(--primary);outline:none;}
.field-hint{font-size:.8rem;color:var(--muted);margin-top:6px;}
.field-row{display:flex;gap:16px;flex-wrap:wrap;}
.field-row .field{flex:1 1 200px;}
.checkbox-row{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.checkbox-row input{width:16px;height:16px;accent-color:var(--primary);}
.checkbox-row label{font-size:.88rem;color:var(--text);margin:0;font-family:var(--font-body);}
.errorlist{list-style:none;padding:0;margin:6px 0 0;color:var(--danger);font-size:.85rem;}

/* results */
.result-panel{margin:32px 0;}
.result-summary{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 24px;margin-bottom:20px;flex-wrap:wrap;box-shadow:var(--shadow);
}
.status-pill{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.82rem;
  padding:6px 14px;border-radius:999px;border:1px solid transparent;
}
.status-pill.ok{color:var(--ok);border-color:#c7ecd8;background:var(--ok-tint);}
.status-pill.warn{color:var(--warn);border-color:#f2e0b8;background:var(--warn-tint);}
.status-pill.bad{color:var(--danger);border-color:#f3c9c1;background:var(--danger-tint);}
.status-pill .dot{width:7px;height:7px;border-radius:50%;background:currentColor;}

.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;margin-bottom:16px;box-shadow:var(--shadow);}
.card h3{font-size:1rem;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.card h3 .tag{font-family:var(--font-body);font-weight:600;font-size:.72rem;color:var(--primary);background:var(--primary-tint);padding:2px 9px;border-radius:6px;}

table.kv{width:100%;border-collapse:collapse;font-size:.92rem;}
table.kv tr{border-bottom:1px solid var(--border);}
table.kv tr:last-child{border-bottom:0;}
table.kv td{padding:10px 0;vertical-align:top;}
table.kv td:first-child{color:var(--muted);width:220px;font-weight:600;font-size:.85rem;padding-right:16px;}
table.kv td:last-child{font-family:var(--font-mono);font-size:.88rem;word-break:break-word;}

.record-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;}
.record-block{background:var(--bg-soft);border:1px solid var(--border);border-radius:10px;padding:16px 18px;}
.record-block h4{font-family:var(--font-body);font-size:.78rem;color:var(--primary);text-transform:uppercase;letter-spacing:.06em;margin:0 0 10px;font-weight:700;}
.record-block ul{list-style:none;margin:0;padding:0;font-family:var(--font-mono);font-size:.85rem;}
.record-block li{padding:6px 0;border-top:1px solid var(--border);word-break:break-all;}
.record-block li:first-child{border-top:0;}
.record-block .empty{color:var(--muted);font-family:var(--font-body);font-style:italic;}

.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;}
.metric{background:var(--bg-soft);border:1px solid var(--border);border-radius:10px;padding:16px 18px;text-align:left;}
.metric .num{font-family:var(--font-display);font-weight:700;font-size:1.5rem;color:var(--primary);display:block;}
.metric .label{font-size:.78rem;color:var(--muted);}

.check-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid var(--border);}
.check-item:first-child{border-top:0;}
.check-icon{width:20px;height:20px;flex:0 0 20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;margin-top:2px;}
.check-icon.ok{background:var(--ok-tint);color:var(--ok);}
.check-icon.bad{background:var(--danger-tint);color:var(--danger);}
.check-icon.warn{background:var(--warn-tint);color:var(--warn);}
.check-text b{color:var(--text);display:block;font-size:.92rem;margin-bottom:2px;}
.check-text span{color:var(--muted);font-size:.85rem;}

.raw-toggle{margin-top:10px;}
.raw-toggle summary{cursor:pointer;font-family:var(--font-body);font-weight:600;font-size:.8rem;color:var(--muted);}
.raw-toggle pre{
  background:var(--bg-soft);border:1px solid var(--border);border-radius:10px;
  padding:16px;font-family:var(--font-mono);font-size:.82rem;overflow-x:auto;margin-top:10px;
  white-space:pre-wrap;word-break:break-word;color:var(--text);
}

/* domain generator results */
.domain-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;}
.domain-chip{
  background:var(--bg-soft);border:1px solid var(--border);border-radius:10px;
  padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--font-body);font-size:.9rem;
}
.domain-chip .status{font-size:.72rem;font-weight:600;padding:3px 9px;border-radius:999px;white-space:nowrap;}
.domain-chip .status.avail{background:var(--ok-tint);color:var(--ok);}
.domain-chip .status.taken{background:var(--danger-tint);color:var(--danger);}
.domain-chip .status.unknown{background:var(--surface);color:var(--muted);}

.alert{border-radius:var(--radius);padding:16px 20px;margin-bottom:20px;font-size:.92rem;border:1px solid;}
.alert-error{background:var(--danger-tint);border-color:#f3c9c1;color:#9c2c1b;}
.flash{border-radius:10px;padding:12px 18px;margin:14px 0;font-size:.9rem;}
.flash-error{background:var(--danger-tint);color:#9c2c1b;border:1px solid #f3c9c1;}
.flash-success{background:var(--ok-tint);color:#137a49;border:1px solid #c7ecd8;}

.loading-note{display:none;align-items:center;gap:10px;font-family:var(--font-body);font-weight:500;font-size:.85rem;color:var(--muted);margin-top:14px;}
.loading-note.active{display:flex;}
.spinner{width:14px;height:14px;border-radius:50%;border:2px solid var(--border);border-top-color:var(--primary);animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

/* footer */
.site-footer{border-top:1px solid var(--border);padding:48px 0 32px;margin-top:40px;background:var(--bg-soft);}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.footer-brand-logo{height:30px;width:auto;display:block;margin-bottom:10px;}
.footer-links{display:flex;flex-direction:column;gap:8px;font-size:.88rem;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-copy{font-size:.8rem;width:100%;margin-top:24px;border-top:1px solid var(--border);padding-top:20px;color:var(--muted);}
.muted{color:var(--muted);}

@media (max-width:640px){
  .hero{padding:52px 0 36px;}
  .section{padding:44px 0;}
  table.kv td:first-child{width:130px;}
}