:root{
  --bg:#F4F6FA;--surface:#FFFFFF;--surface-alt:#EBEFF6;--ink:#0F1B33;--ink-muted:#57607A;
  --primary:#16325C;--primary-ink:#FFFFFF;--accent:#F5A623;--accent-ink:#16325C;
  --success:#1FAA72;--success-ink:#FFFFFF;--danger:#D64545;--danger-ink:#FFFFFF;--border:#DCE1EC;
  --radius-sm:8px;--radius-md:14px;--radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(15,27,51,.05);--shadow-md:0 10px 28px rgba(15,27,51,.08);
  --font-display:'Space Grotesk',system-ui,sans-serif;--font-body:'Work Sans',system-ui,sans-serif;--font-mono:'IBM Plex Mono',ui-monospace,monospace;
  --nav-h:72px;--container:1120px;
}
[data-theme="dark"]{
  --bg:#0B1220;--surface:#131B2E;--surface-alt:#1B2540;--ink:#EDEFF4;--ink-muted:#8B93A7;
  --primary:#1B2540;--primary-ink:#EDEFF4;--accent:#F5A623;--accent-ink:#0B1220;
  --success:#3DDC97;--success-ink:#0B1220;--danger:#FF6B6B;--danger-ink:#0B1220;--border:rgba(255,255,255,.08);
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 10px 28px rgba(0,0,0,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
button{font:inherit;cursor:pointer}
input,select{font:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2rem,4.5vw,3.4rem);letter-spacing:-.02em;line-height:1.05}
h2{font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.15}
h3{font-size:1.15rem}
p{margin:0 0 1em;color:var(--ink-muted)}
.eyebrow{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 18%,transparent);display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:99px;margin-bottom:16px}
[data-theme="dark"] .eyebrow{color:var(--accent)}
.mono{font-family:var(--font-mono)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--radius-sm);border:1px solid transparent;font-weight:600;font-size:.95rem;transition:transform .15s,box-shadow .15s,background .15s,opacity .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:var(--accent-ink);box-shadow:var(--shadow-sm)}
.btn-accent:hover{box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 45%,transparent)}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{opacity:.92}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{background:var(--surface-alt)}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}

.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);height:var(--nav-h)}
.site-header .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:9px;font-family:var(--font-display);font-weight:700;font-size:1.15rem}
.logo .bolt{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:.92rem;color:var(--ink-muted);font-weight:500;transition:color .15s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:10px}
.theme-toggle{width:40px;height:40px;border-radius:99px;border:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--ink)}
.nav-burger{display:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:var(--surface);align-items:center;justify-content:center}
@media (max-width:860px){
  .nav-links{position:fixed;inset:var(--nav-h) 0 auto 0;background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;align-items:flex-start;gap:0;padding:8px 20px 18px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.18s ease}
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{width:100%;padding:12px 0;border-bottom:1px solid var(--border)}
  .nav-burger{display:flex}
}
.current-line{height:2px;width:100%;position:relative;overflow:hidden;background:var(--border)}
.current-line::after{content:"";position:absolute;top:0;left:-30%;width:30%;height:100%;background:linear-gradient(90deg,transparent,var(--accent),transparent);animation:travel 3.2s linear infinite}
@keyframes travel{0%{left:-30%}100%{left:100%}}

.hero{padding:64px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
.hero p.lead{font-size:1.05rem;max-width:46ch}
.trust-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px}
.trust-row .item{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--ink-muted)}
.trust-row svg{width:16px;height:16px;color:var(--success)}

.checker-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md)}
.checker-card .card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.checker-card .card-head h3{margin:0}
.input-toggle{display:flex;background:var(--surface-alt);border-radius:99px;padding:4px;gap:4px}
.input-toggle button{flex:1;padding:8px 10px;border-radius:99px;border:none;background:transparent;color:var(--ink-muted);font-weight:600;font-size:.82rem}
.input-toggle button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field .hint{font-size:.78rem;color:var(--ink-muted);margin-top:6px}
.field select,.field input[type="text"]{width:100%;padding:14px 16px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--bg);color:var(--ink);font-family:var(--font-mono);font-size:1rem;letter-spacing:.02em;transition:border-color .15s}
.field select{font-family:var(--font-body);letter-spacing:0}
.field input:focus,.field select:focus{border-color:var(--accent)}
.field.error input{border-color:var(--danger)}
.field .error-msg{display:none;color:var(--danger);font-size:.8rem;margin-top:6px;font-weight:600}
.field.error .error-msg{display:block}
.recent-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.recent-list button{font-family:var(--font-mono);font-size:.78rem;padding:7px 12px;border-radius:99px;border:1px solid var(--border);background:var(--surface-alt);color:var(--ink-muted)}
.recent-list button:hover{color:var(--ink);border-color:var(--accent)}

.state-panel{display:none;text-align:center;padding:18px 4px 4px}
.state-panel.active{display:block}
.loader-current{width:100%;height:44px;position:relative;margin:0 auto 14px;max-width:220px}
.loader-current svg{width:100%;height:100%}
.loader-current .wire{fill:none;stroke:var(--border);stroke-width:2}
.loader-current .dot{fill:var(--accent)}
.loader-current .pulse{offset-path:path("M2,22 L60,22 L74,6 L88,38 L102,22 L218,22");animation:runwire 1.4s linear infinite}
@keyframes runwire{0%{offset-distance:0%}100%{offset-distance:100%}}
.state-title{font-family:var(--font-display);font-weight:600;font-size:1.05rem;margin-bottom:6px}
.state-sub{font-size:.88rem;color:var(--ink-muted);max-width:34ch;margin:0 auto 18px}
.state-icon{width:52px;height:52px;margin:0 auto 14px;border-radius:99px;display:flex;align-items:center;justify-content:center}
.state-icon.success{background:color-mix(in srgb,var(--success) 16%,transparent);color:var(--success)}
.state-icon.error{background:color-mix(in srgb,var(--danger) 16%,transparent);color:var(--danger)}
.state-icon.empty{background:var(--surface-alt);color:var(--ink-muted)}
.state-icon svg{width:26px;height:26px}
.ref-chip{display:inline-flex;align-items:center;gap:10px;background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;font-family:var(--font-mono);font-size:.85rem;margin-bottom:18px}
.state-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

.section{padding:64px 0}
.section-head{max-width:640px;margin:0 auto 40px;text-align:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media (max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:22px;transition:transform .15s,box-shadow .15s,border-color .15s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}
.disco-card{display:flex;flex-direction:column;gap:10px}
.disco-card .code{font-family:var(--font-mono);font-size:.72rem;color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 16%,transparent);width:fit-content;padding:3px 9px;border-radius:99px}
[data-theme="dark"] .disco-card .code{color:var(--accent)}
.disco-card h4{margin:0;font-size:1.02rem}
.disco-card .cities{font-size:.78rem;color:var(--ink-muted)}
.feature-card .icon{width:38px;height:38px;color:var(--accent);margin-bottom:14px}
.feature-card h4{margin-bottom:6px}
.feature-card p{margin:0;font-size:.9rem}

.steps-wrap{position:relative;padding-top:6px}
.steps-line{position:absolute;top:24px;left:6%;right:6%;height:2px;background:var(--border);z-index:0}
.steps-line::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--accent),transparent 70%);animation:chargeline 3s ease-in-out infinite alternate}
@keyframes chargeline{0%{width:0}100%{width:100%}}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;z-index:1}
@media (max-width:760px){.steps{grid-template-columns:1fr}.steps-line{display:none}}
.step .node{width:48px;height:48px;border-radius:99px;background:var(--surface);border:2px solid var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:700;margin-bottom:14px}
[data-theme="dark"] .step .node{color:var(--accent)}
.step h4{margin-bottom:6px}
.step p{font-size:.9rem;margin:0}

.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 2px;background:none;border:none;text-align:left;color:var(--ink);font-weight:600;font-family:var(--font-body);font-size:.98rem}
.faq-q .plus{width:18px;height:18px;flex:none;position:relative}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--ink-muted);border-radius:2px}
.faq-q .plus::before{width:100%;height:2px;top:50%;left:0;transform:translateY(-50%)}
.faq-q .plus::after{height:100%;width:2px;left:50%;top:0;transform:translateX(-50%);transition:transform .2s}
.faq-item[open] .faq-q .plus::after{transform:translateX(-50%) rotate(90deg);opacity:0}
.faq-a{padding:0 2px 18px;font-size:.92rem;color:var(--ink-muted);max-width:70ch}
details>summary{list-style:none;cursor:pointer}
details>summary::-webkit-details-marker{display:none}

.site-footer{background:var(--primary);color:var(--primary-ink);margin-top:40px;padding:52px 0 26px}
.site-footer a{color:color-mix(in srgb,var(--primary-ink) 78%,transparent)}
.site-footer a:hover{color:var(--primary-ink)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h5{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;opacity:.65;margin-bottom:14px}
.footer-grid ul li{margin-bottom:9px;font-size:.88rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;font-size:.8rem;opacity:.75}
.disclaimer{font-size:.8rem;opacity:.7;max-width:60ch;margin-top:10px}

.breadcrumbs{font-size:.82rem;color:var(--ink-muted);padding:18px 0 0}
.breadcrumbs .sep{margin:0 6px;opacity:.5}

.prose{max-width:72ch}
.prose h2{margin-top:1.6em}
.prose p{color:var(--ink)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media (max-width:760px){.contact-grid{grid-template-columns:1fr}}
textarea{width:100%;padding:14px 16px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--bg);color:var(--ink);font-family:var(--font-body);resize:vertical;min-height:120px}
textarea:focus{border-color:var(--accent)}

.notfound{min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 20px}
.notfound .code{font-family:var(--font-mono);font-size:.85rem;color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 16%,transparent);padding:6px 14px;border-radius:99px;margin-bottom:18px}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--accent-ink);padding:10px 16px;z-index:100;border-radius:0 0 8px 0}
.skip-link:focus{left:0}