@font-face{font-family:"Poppins";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/poppins-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/poppins-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/poppins-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/poppins-latin-700-normal.woff2") format("woff2")}

/* ==========================================================================
   TCP Optimizer — design system
   Palette sampled from the brand icon: outline ink, folder sky-blue,
   screwdriver yellow, wrench steel.
   ========================================================================== */
:root{
  --ink:#0a1626;
  --ink-2:#1f3450;
  --blue:#1c64c4;
  --blue-700:#154f9e;
  --sky-50:#f3f8fe;
  --sky-100:#e6f1fd;
  --sky-200:#cde3fa;
  --sky-400:#9acefe;
  --yellow:#ffd60a;
  --yellow-50:#fffbe6;
  --steel:#82817f;
  --bg:#ffffff;
  --bg-alt:#f8fafc;
  --chrome:#f3f8fe;          /* header + footer */
  --text:#1b2635;
  --muted:#556275;
  --line:#e3e9f0;
  --line-strong:#c9d5e2;
  --ok:#17804a;
  --warn:#9a6200;
  --err:#a12b2b;

  --font:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,"Cascadia Mono",Consolas,Menlo,monospace;
  --fs-xs:.8125rem; --fs-sm:.9375rem; --fs-base:1.0625rem; --fs-lg:1.1875rem;
  --fs-h3:1.1875rem; --fs-h2:clamp(1.65rem,1.2rem + 1.4vw,2.125rem); --fs-h1:clamp(2rem,1.4rem + 2.2vw,2.9rem);

  --s-1:.25rem; --s-2:.5rem; --s-3:.75rem; --s-4:1rem; --s-5:1.5rem; --s-6:2rem; --s-7:3rem; --s-8:4rem;
  --section:clamp(3.5rem,2.6rem + 3.5vw,5.5rem);
  --container:1180px; --gutter:clamp(1rem,.5rem + 2vw,1.5rem);
  --r-sm:6px; --r:10px; --r-lg:14px;
  --shadow-sm:0 1px 2px rgba(10,22,38,.05);
  --shadow:0 10px 30px -14px rgba(10,22,38,.18),0 2px 6px rgba(10,22,38,.04);
  --t:.18s ease;
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--font);font-size:var(--fs-base);line-height:1.75;color:var(--text);background:var(--bg)}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-700)}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--ink);margin:0 0 var(--s-4);letter-spacing:-.015em}
h1{font-size:var(--fs-h1);letter-spacing:-.02em}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-weight:600}
p{margin:0 0 var(--s-4)}
ul,ol{margin:0 0 var(--s-4);padding-left:1.25rem}
li{margin-bottom:.35rem}
code{font-family:var(--mono);font-size:.88em;background:var(--sky-100);color:var(--ink-2);padding:.1em .4em;border-radius:4px}
strong{font-weight:600;color:var(--ink)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section)}
.section.alt{background:var(--bg-alt);border-block:1px solid var(--line)}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:1rem;top:-100px;z-index:200;background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:var(--r-sm);font-weight:600}
.skip-link:focus{top:1rem;color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:var(--fs-xs);font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-bottom:var(--s-3)}
.eyebrow::before{content:"";width:16px;height:3px;background:var(--yellow);border-radius:2px}
.muted{color:var(--muted)}
.section-head{max-width:720px;margin-bottom:var(--s-7)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head p{color:var(--muted);margin:0}
.icon{width:24px;height:24px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.icon-sm{width:18px;height:18px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font:600 var(--fs-sm)/1.2 var(--font);padding:.85rem 1.35rem;border-radius:var(--r);border:1.5px solid transparent;text-decoration:none;cursor:pointer;transition:background var(--t),border-color var(--t),color var(--t),box-shadow var(--t),transform var(--t)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px -8px rgba(28,100,196,.7)}
.btn-primary:hover{background:var(--blue-700);color:#fff}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.btn-lg{font-size:var(--fs-base);padding:1rem 1.6rem}

/* ---------- header (light, shared colour with footer) ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--chrome);border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 6px 18px -14px rgba(10,22,38,.35)}
.header-inner{display:flex;align-items:center;gap:var(--s-5);height:72px}
.brand{display:inline-flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--ink);font-weight:700;font-size:1.15rem;letter-spacing:-.02em;flex:none}
.brand img{width:38px;height:38px}
.brand:hover{color:var(--ink)}
.primary-nav{margin-left:auto}
.primary-nav ul{display:flex;gap:.15rem;list-style:none;margin:0;padding:0}
.primary-nav li{margin:0}
.primary-nav a{display:block;padding:.5rem .8rem;border-radius:var(--r-sm);color:var(--ink-2);font-size:var(--fs-sm);font-weight:500;text-decoration:none}
.primary-nav a:hover{background:#fff;color:var(--blue)}
.primary-nav a[aria-current="page"]{color:var(--blue);font-weight:600}
.header-cta{flex:none;padding:.65rem 1.1rem}
.nav-toggle{display:none;margin-left:auto;background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-sm);width:44px;height:44px;align-items:center;justify-content:center;color:var(--ink);cursor:pointer}
.primary-nav .mobile-cta{display:none}
@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .primary-nav{position:fixed;inset:72px 0 auto 0;background:var(--chrome);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:var(--s-3) var(--gutter) var(--s-5);display:none;max-height:calc(100vh - 72px);overflow:auto}
  .primary-nav.is-open{display:block}
  .primary-nav ul{flex-direction:column;gap:0}
  .primary-nav a{padding:.85rem .25rem;border-bottom:1px solid var(--line);border-radius:0;font-size:var(--fs-base)}
  .primary-nav .mobile-cta{display:flex;margin-top:var(--s-4);width:100%}
}

/* ---------- 1. hero (centered, product shot) ---------- */
.hero{position:relative;overflow:hidden;padding-block:clamp(3rem,2rem + 3vw,4.5rem) 0;border-bottom:1px solid var(--line);background:
  radial-gradient(60% 55% at 50% 0%,rgba(154,206,254,.45) 0%,rgba(154,206,254,0) 70%),
  linear-gradient(180deg,var(--sky-50) 0%,#fff 78%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(28,100,196,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(28,100,196,.06) 1px,transparent 1px);background-size:44px 44px;-webkit-mask:radial-gradient(70% 60% at 50% 20%,#000 30%,transparent 75%);mask:radial-gradient(70% 60% at 50% 20%,#000 30%,transparent 75%);pointer-events:none}
.hero .container{position:relative}
.hero-center{max-width:820px;margin-inline:auto;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;font-size:var(--fs-xs);font-weight:600;color:var(--blue-700);background:#fff;border:1px solid var(--sky-200);border-radius:999px;padding:.35rem .9rem;margin-bottom:var(--s-5);box-shadow:var(--shadow-sm)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--yellow);box-shadow:0 0 0 3px rgba(255,214,10,.25)}
.hero h1{max-width:20ch;margin-inline:auto}
.hero-lead{font-size:var(--fs-lg);color:var(--muted);max-width:60ch;margin:0 auto var(--s-6)}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--s-3);margin-bottom:var(--s-5)}
.hero-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem 1.4rem;list-style:none;padding:0;margin:0;font-size:var(--fs-sm);color:var(--muted)}
.hero-meta li{margin:0;display:inline-flex;align-items:center;gap:.4rem}
.hero-meta .icon{width:16px;height:16px;color:var(--ok)}
.hero-shot{max-width:820px;margin:clamp(2rem,4vw,3rem) auto 0;position:relative;max-height:300px;overflow:hidden;-webkit-mask:linear-gradient(180deg,#000 62%,transparent 100%);mask:linear-gradient(180deg,#000 62%,transparent 100%)}
.hero-shot::before{content:"";position:absolute;left:8%;right:8%;bottom:-18px;height:40px;background:rgba(28,100,196,.25);filter:blur(28px);border-radius:50%}
.win{position:relative;background:#fff;border:1px solid var(--line-strong);border-bottom:0;border-radius:var(--r-lg) var(--r-lg) 0 0;box-shadow:0 30px 60px -30px rgba(10,22,38,.35);font-size:.84rem;line-height:1.4;overflow:hidden}
.win-bar{display:flex;align-items:center;gap:.55rem;background:linear-gradient(180deg,#fff,var(--sky-50));border-bottom:1px solid var(--line);padding:.65rem 1rem;font-weight:600;color:var(--ink)}
.win-bar img{width:20px;height:20px}
.win-bar .dots{margin-left:auto;display:flex;gap:6px}
.win-bar .dots i{width:11px;height:11px;border-radius:50%;background:var(--line-strong)}
.win-tabs{display:flex;gap:.25rem;padding:.55rem 1rem 0;border-bottom:1px solid var(--line);overflow:hidden}
.win-tabs span{padding:.4rem .8rem;font-size:.76rem;color:var(--muted);white-space:nowrap;border-bottom:2px solid transparent}
.win-tabs span.on{color:var(--blue);font-weight:600;border-bottom-color:var(--blue)}
.win-body{padding:1.1rem 1.25rem .6rem}
.win-cols{display:grid;grid-template-columns:1fr 1fr;column-gap:2rem}
.win-row{display:flex;justify-content:space-between;gap:.75rem;align-items:center;padding:.55rem 0;border-bottom:1px solid var(--line)}
.win-row b{font-weight:500;color:var(--ink-2)}
.win-row em{font-style:normal;font-family:var(--mono);font-size:.74rem;background:var(--sky-50);border:1px solid var(--sky-200);padding:.1rem .45rem;border-radius:4px;color:var(--ink);white-space:nowrap}
.win-slider{margin-bottom:.4rem}
.win-slider .lbl{display:flex;justify-content:space-between;color:var(--muted);font-size:.76rem}
.win-slider .track{height:6px;border-radius:4px;background:linear-gradient(90deg,var(--blue) 72%,var(--line) 72%);position:relative;margin:.55rem 0 .7rem}
.win-slider .track::after{content:"";position:absolute;left:72%;top:50%;width:16px;height:16px;transform:translate(-50%,-50%);background:#fff;border:3px solid var(--blue);border-radius:50%}
.win-foot{display:flex;justify-content:space-between;align-items:center;gap:.75rem;flex-wrap:wrap;padding:.8rem 1.25rem;background:var(--bg-alt);border-top:1px solid var(--line);color:var(--muted);font-size:.78rem}
.win-foot .radios{display:inline-flex;align-items:center;gap:.35rem;flex-wrap:wrap}
.win-foot .radios i{width:11px;height:11px;border:1.5px solid var(--line-strong);border-radius:50%;margin-left:.5rem}
.win-foot .radios i:first-child{margin-left:0}
.win-foot .radios i.on{border-color:var(--blue);background:radial-gradient(var(--blue) 45%,#fff 50%)}
.win-foot .radios b{color:var(--ink);font-weight:600}
.win-foot .btnlike{background:var(--blue);color:#fff;border-radius:6px;padding:.35rem .9rem;font-weight:500}
@media (max-width:640px){.win-cols{grid-template-columns:1fr}.win-tabs span:nth-child(n+3){display:none}.win-foot .radios{display:none}}
@media (max-width:480px){.hero-actions .btn{width:100%}}

/* ---------- 2. what is (text + stat tiles) ---------- */
.what-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.what-grid>*{min-width:0}
.what-text p{color:var(--muted);margin-bottom:var(--s-4)}
.what-text p:last-child{margin:0}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--s-4);margin:0}
.stat-grid div{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:var(--s-5);position:relative;overflow:hidden}
.stat-grid div::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--blue)}
.stat-grid div:nth-child(2)::before{background:var(--sky-400)}
.stat-grid div:nth-child(3)::before{background:var(--yellow)}
.stat-grid div:nth-child(4)::before{background:var(--steel)}
.stat-grid dt{font-size:var(--fs-xs);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:500}
.stat-grid dd{margin:.25rem 0 0;font-size:1.5rem;font-weight:700;color:var(--ink);letter-spacing:-.02em}
@media (max-width:900px){.what-grid{grid-template-columns:1fr}}

/* section intros: two short paragraphs under each H2 */
.section-head p+p{margin-top:var(--s-3)}

/* ---------- 3. features (light, numbered cards) ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-5);list-style:none;margin:0;padding:0;counter-reset:feat}
.feature-grid li{counter-increment:feat;position:relative;margin:0;padding:var(--s-6) var(--s-6) var(--s-6);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:border-color var(--t),box-shadow var(--t),transform var(--t)}
.feature-grid li::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--sky-400));transform:scaleX(.18);transform-origin:left;transition:transform .35s ease}
.feature-grid li::after{content:counter(feat,decimal-leading-zero);position:absolute;top:var(--s-5);right:var(--s-5);font-size:2.25rem;font-weight:700;line-height:1;color:var(--sky-100);letter-spacing:-.04em}
.feature-grid li:hover{border-color:var(--sky-200);box-shadow:var(--shadow);transform:translateY(-3px)}
.feature-grid li:hover::before{transform:scaleX(1)}
.f-ico{position:relative;z-index:1;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--sky-50);border:1px solid var(--sky-200);color:var(--blue);margin-bottom:var(--s-5)}
.feature-grid h3{position:relative;z-index:1;margin-bottom:.45rem;font-size:var(--fs-h3)}
.feature-grid p{position:relative;z-index:1;color:var(--muted);font-size:var(--fs-sm);margin:0}
@media (max-width:980px){.feature-grid{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.feature-grid{grid-template-columns:1fr}}

/* ---------- 4. how to use (numbered flow) ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s-5);list-style:none;margin:0;padding:0;position:relative}
.flow::before{content:"";position:absolute;top:26px;left:26px;right:calc(25% - 26px);height:2px;background:linear-gradient(90deg,var(--blue),var(--sky-400))}
.flow li{margin:0;position:relative}
.flow-num{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid var(--blue);color:var(--blue);font-weight:700;font-size:1.15rem;margin-bottom:var(--s-4);position:relative;box-shadow:0 0 0 6px #fff}
.flow li:first-child .flow-num{background:var(--blue);color:#fff}
.flow h3{font-size:var(--fs-base);margin-bottom:.3rem}
.flow p{font-size:var(--fs-sm);color:var(--muted);margin:0}
@media (max-width:900px){
  .flow{grid-template-columns:1fr;gap:0}
  .flow::before{top:26px;bottom:26px;left:25px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,var(--blue),var(--sky-400))}
  .flow li{display:grid;grid-template-columns:52px 1fr;column-gap:var(--s-4);padding-bottom:var(--s-5)}
  .flow-num{grid-row:span 2;margin:0}
}

/* ---------- 5. requirements ---------- */
.req-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:var(--s-6);align-items:start}
.req-grid>*{min-width:0}
.os-list{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.os-list li{display:flex;justify-content:space-between;align-items:center;gap:var(--s-3);margin:0;padding:.85rem var(--s-5);border-bottom:1px solid var(--line);font-size:var(--fs-sm);font-weight:500}
.os-list li:last-child{border-bottom:0}
.os-list .head{background:var(--sky-50);font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.06em;font-weight:600;color:var(--ink)}
@media (max-width:900px){.req-grid{grid-template-columns:1fr}}

/* ---------- tables / badges ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
.data{width:100%;border-collapse:collapse;font-size:var(--fs-sm)}
.data th,.data td{padding:.85rem var(--s-5);text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.data thead th{background:var(--sky-50);font-weight:600;color:var(--ink);font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.06em}
.data tbody tr:last-child th,.data tbody tr:last-child td{border-bottom:0}
.data tbody th{font-weight:600;color:var(--ink);width:38%}
.badge{display:inline-flex;align-items:center;font-size:.72rem;font-weight:600;padding:.15rem .6rem;border-radius:999px;line-height:1.5;white-space:nowrap}
.badge-ok{color:var(--ok);background:#e8f6ee}
.badge-legacy{color:var(--warn);background:#fff3dc}
.badge-no{color:var(--err);background:#fdeceb}

/* ---------- 6. download (light panel) ---------- */
.dl-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(1.5rem,5vw,4rem);align-items:center;padding:clamp(1.75rem,5vw,3.5rem);border-radius:22px;position:relative;overflow:hidden;
  background:radial-gradient(70% 120% at 100% 0%,rgba(154,206,254,.45) 0%,rgba(154,206,254,0) 60%),var(--sky-50);border:1px solid var(--sky-200)}
.dl-panel>*{min-width:0;position:relative}
.dl-copy p{color:var(--muted)}
.dl-copy .btn{margin-top:var(--s-3)}
.dl-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;font-size:var(--fs-sm);box-shadow:var(--shadow-sm)}
.dl-table th,.dl-table td{text-align:left;padding:.75rem var(--s-5);border-bottom:1px solid var(--line)}
.dl-table tr:last-child th,.dl-table tr:last-child td{border-bottom:0}
.dl-table th{font-weight:400;color:var(--muted)}
.dl-table td{font-weight:600;color:var(--ink);text-align:right}
@media (max-width:900px){.dl-panel{grid-template-columns:1fr}}

/* ---------- 7. safety ---------- */
.safe-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-4);list-style:none;margin:0;padding:0}
.safe-grid li{display:flex;gap:var(--s-3);margin:0;padding:var(--s-5);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg)}
.safe-grid .ck{width:32px;height:32px;flex:none;border-radius:50%;background:#e8f6ee;color:var(--ok);display:grid;place-items:center}
.safe-grid .ck .icon{width:17px;height:17px;stroke-width:2.4}
.safe-grid h3{font-size:var(--fs-base);margin-bottom:.2rem}
.safe-grid p{margin:0;font-size:var(--fs-sm);color:var(--muted)}
@media (max-width:980px){.safe-grid{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.safe-grid{grid-template-columns:1fr}}

/* ---------- 8. FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.faq-grid>*{min-width:0}
.faq-head{position:sticky;top:100px}
.faq-head p{color:var(--muted)}
.acc{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:0 var(--s-5)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-item:last-child{border-bottom:0}
.acc-item h3{margin:0;font-size:var(--fs-base)}
.acc-btn{width:100%;display:flex;align-items:center;gap:var(--s-4);text-align:left;background:none;border:0;padding:var(--s-5) 0;font:600 var(--fs-base)/1.45 var(--font);color:var(--ink);cursor:pointer}
.acc-btn:hover{color:var(--blue)}
.acc-btn .qn{font-family:var(--mono);font-size:var(--fs-xs);color:var(--blue);width:24px;flex:none}
.acc-btn .pm{margin-left:auto;width:28px;height:28px;flex:none;border:1px solid var(--line-strong);border-radius:50%;position:relative;background:#fff;transition:background var(--t),border-color var(--t)}
.acc-btn .pm::before,.acc-btn .pm::after{content:"";position:absolute;left:50%;top:50%;width:11px;height:2px;background:var(--ink);transform:translate(-50%,-50%);transition:transform var(--t)}
.acc-btn .pm::after{transform:translate(-50%,-50%) rotate(90deg)}
.acc-btn[aria-expanded="true"] .pm{background:var(--blue);border-color:var(--blue)}
.acc-btn[aria-expanded="true"] .pm::before,.acc-btn[aria-expanded="true"] .pm::after{background:#fff}
.acc-btn[aria-expanded="true"] .pm::after{transform:translate(-50%,-50%) rotate(0)}
.acc-panel{padding:0 var(--s-6) var(--s-5) calc(24px + var(--s-4));color:var(--muted);font-size:var(--fs-sm)}
.acc-panel p:last-child{margin:0}
.js .acc-panel[hidden]{display:none}
@media (max-width:900px){.faq-grid{grid-template-columns:1fr}.faq-head{position:static}.acc-panel{padding-left:0}}

/* ---------- footer (same light colour as header) ---------- */
.site-footer{background:var(--chrome);border-top:1px solid var(--line);color:var(--muted);font-size:var(--fs-sm);padding-top:var(--s-8)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:var(--s-6);padding-bottom:var(--s-7)}
.footer-brand p{margin-top:var(--s-4);max-width:36ch}
.site-footer h2{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);margin-bottom:var(--s-4)}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.5rem}
.site-footer ul a{color:var(--ink-2);text-decoration:none}
.site-footer ul a:hover{color:var(--blue);text-decoration:underline}
.footer-bottom{border-top:1px solid var(--line);padding-block:var(--s-5);display:flex;flex-wrap:wrap;gap:var(--s-3) var(--s-6);justify-content:space-between;font-size:var(--fs-xs)}
.footer-bottom p{margin:0}
.footer-bottom a{color:var(--blue);font-weight:600;text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}

/* ---------- inner pages ---------- */
.page-hero{background:var(--sky-50);border-bottom:1px solid var(--line);padding-block:var(--s-7) var(--s-6)}
.page-hero h1{font-size:clamp(1.9rem,1.4rem + 1.8vw,2.6rem);max-width:24ch}
.page-hero p{color:var(--muted);max-width:62ch;margin:0}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:.35rem;list-style:none;padding:0;margin:0 0 var(--s-4);font-size:var(--fs-xs);color:var(--muted)}
.breadcrumb li{margin:0;display:flex;align-items:center;gap:.35rem}
.breadcrumb li+li::before{content:"/";color:var(--line-strong)}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--blue);text-decoration:underline}
.prose{max-width:74ch}
.prose h2{font-size:clamp(1.4rem,1.15rem + .9vw,1.7rem);margin-top:var(--s-7)}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:var(--s-5)}
.prose li::marker{color:var(--blue)}
.lead{font-size:var(--fs-lg);color:var(--muted)}
.legal-layout{display:grid;grid-template-columns:240px 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.legal-layout>*{min-width:0}
.toc{position:sticky;top:100px;font-size:var(--fs-sm);border-left:2px solid var(--sky-200);padding-left:var(--s-4)}
.toc h2{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:var(--s-3)}
.toc ol{list-style:none;padding:0;margin:0}
.toc li{margin-bottom:.4rem}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--blue);text-decoration:underline}
.updated{display:inline-flex;align-items:center;gap:.4rem;font-size:var(--fs-xs);color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:.25rem .75rem;margin-top:var(--s-4)}
@media (max-width:900px){.legal-layout{grid-template-columns:1fr}.toc{position:static}}
.callout{padding:var(--s-5);border-radius:var(--r);background:var(--sky-50);border:1px solid var(--sky-200);margin:var(--s-5) 0}
.callout p:last-child{margin:0}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-4);list-style:none;padding:0;margin:var(--s-5) 0}
.values li{margin:0;padding:var(--s-5);background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:var(--r)}
.values h3{font-size:var(--fs-base);margin-bottom:.3rem}
.values p{font-size:var(--fs-sm);color:var(--muted);margin:0}
@media (max-width:820px){.values{grid-template-columns:1fr}}

/* contact */
.contact-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.contact-wrap>*{min-width:0}
.contact-card{padding:clamp(1.5rem,4vw,2.5rem);border-radius:var(--r-lg);color:#d3e3f8;background:linear-gradient(135deg,#1c64c4,#0f3c7a);box-shadow:0 24px 50px -28px rgba(21,79,158,.7)}
.contact-card h2{color:#fff;font-size:var(--fs-h3)}
.contact-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(255,255,255,.14);color:#fff;margin-bottom:var(--s-4)}
.contact-email{margin:var(--s-5) 0 0;padding:.9rem 1.1rem;background:#fff;color:var(--ink);border-radius:var(--r);font-weight:600;font-size:var(--fs-lg);word-break:break-all}
.reasons-title{font-size:var(--fs-h3)}
.reasons{list-style:none;padding:0;margin:0}
.reasons li{display:flex;gap:var(--s-3);padding:var(--s-4) 0;border-bottom:1px solid var(--line);margin:0}
.reasons .icon{color:var(--blue);margin-top:.2rem}
.reasons strong{display:block}
.reasons span{font-size:var(--fs-sm);color:var(--muted)}
@media (max-width:860px){.contact-wrap{grid-template-columns:1fr}}

/* sitemap */
.sm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-5)}
.sm-col{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:var(--s-5)}
.sm-col h2{font-size:var(--fs-h3)}
.sm-col ul{list-style:none;padding:0;margin:0}
.sm-col li{padding:.45rem 0;border-bottom:1px solid var(--line);margin:0}
@media (max-width:820px){.sm-grid{grid-template-columns:1fr}}

/* guides */
.guide-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--s-5)}
.gcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--t)}
.gcard:hover{box-shadow:var(--shadow)}
.gcard img{aspect-ratio:16/9;width:100%;object-fit:cover;border-bottom:1px solid var(--line)}
.gcard-body{padding:var(--s-5);display:flex;flex-direction:column;flex:1}
.gcard h2{font-size:var(--fs-h3)}
.gcard h2 a{color:var(--ink);text-decoration:none}
.gcard h2 a::after{content:"";position:absolute;inset:0}
.gcard p{color:var(--muted);font-size:var(--fs-sm)}
.gcard .meta{margin:auto 0 0;font-size:var(--fs-xs);display:flex;justify-content:space-between;align-items:center}
.gcard .meta span{display:inline-flex;gap:.3rem;align-items:center}
.gcard .read{color:var(--blue);font-weight:600}
.article-layout{display:grid;grid-template-columns:1fr 260px;gap:clamp(2rem,5vw,4rem);align-items:start}
.article-layout>*{min-width:0}
.feature-img{border-radius:var(--r-lg);border:1px solid var(--line);margin-bottom:var(--s-6);aspect-ratio:16/9;width:100%;object-fit:cover}
.article-meta{display:flex;flex-wrap:wrap;gap:var(--s-4);margin-top:var(--s-4);font-size:var(--fs-xs);color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:.35rem}
.article-cta{margin-top:var(--s-7);padding:var(--s-6);background:var(--sky-50);border:1px solid var(--sky-200);border-radius:var(--r-lg);display:flex;gap:var(--s-5);align-items:center;justify-content:space-between;flex-wrap:wrap}
.article-cta h2{margin:0 0 .2rem;font-size:var(--fs-h3)}
.article-cta p{margin:0;color:var(--muted)}
@media (max-width:980px){.article-layout{grid-template-columns:1fr}.article-layout .toc{position:static;order:-1}}

/* 404 */
.nf{text-align:center;padding-block:var(--s-8)}
.nf .code{font-size:clamp(4rem,10vw,6.5rem);font-weight:700;line-height:1;color:var(--sky-400);margin-bottom:var(--s-4)}
.nf .actions{display:flex;flex-wrap:wrap;gap:var(--s-3);justify-content:center;margin-top:var(--s-5)}

/* motion */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}.js .reveal{opacity:1;transform:none}}
@media print{.site-header,.site-footer{display:none}}
#features{border-top:1px solid var(--line)}
.related{margin-top:var(--s-6);padding-top:var(--s-5);border-top:1px solid var(--line)}
.related h2{font-size:var(--fs-h3);margin:0 0 var(--s-3)}
.related ul{list-style:none;padding:0;margin:0;display:grid;gap:.5rem}
.related li{margin:0}
.related a{font-weight:500;text-decoration:none}
.related a:hover{text-decoration:underline}

/* ---------- centered layout (all homepage sections) ---------- */
.what-wrap .section-head{margin-bottom:var(--s-6)}
.what-wrap .stat-grid{grid-template-columns:repeat(4,1fr);max-width:900px;margin-inline:auto;text-align:center}
.what-wrap .stat-grid div::before{left:0;right:0;top:0;bottom:auto;width:auto;height:4px}
@media (max-width:760px){.what-wrap .stat-grid{grid-template-columns:1fr 1fr}}
.section-head.center p{margin-inline:auto}
.use-photo{max-width:1000px;margin:0 auto var(--s-7);border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--sky-50)}
.use-photo img{width:100%;aspect-ratio:1200/520;object-fit:cover}
.use-photo.is-broken{display:none}
.flow h3,.flow p{text-align:left}
@media (min-width:901px){.flow{text-align:center}.flow li{display:flex;flex-direction:column;align-items:center}.flow h3,.flow p{text-align:center}.flow::before{left:12.5%;right:12.5%}.flow-num{margin-inline:auto}}
.dl-panel.center{grid-template-columns:1fr;justify-items:center;text-align:center;max-width:860px;margin-inline:auto}
.dl-panel.center .dl-copy p{max-width:62ch;margin-inline:auto}
.dl-panel.center .dl-table{max-width:600px}
.faq-wrap{max-width:900px}
.faq-wrap .acc{text-align:left}

/* FAQ heading must not stick over the questions */
.faq-wrap .faq-head{position:static}

/* ---------- back-to-top button (rotating two-colour ring) ---------- */
.to-top{position:fixed;right:22px;bottom:22px;z-index:150;width:56px;height:56px;border:0;padding:0;border-radius:50%;cursor:pointer;background:transparent;display:grid;place-items:center;opacity:0;transform:translateY(12px);transition:opacity .25s ease,transform .25s ease}
.to-top.is-visible{opacity:1;transform:none}
.to-top[hidden]{display:none}
.to-top::before{content:"";position:absolute;inset:0;border-radius:50%;background:conic-gradient(var(--blue) 0deg 150deg,transparent 150deg 180deg,var(--yellow) 180deg 330deg,transparent 330deg 360deg);animation:to-top-spin 2.4s linear infinite}
.to-top::after{content:"";position:absolute;inset:4px;border-radius:50%;background:#fff;box-shadow:0 6px 16px -6px rgba(10,22,38,.35)}
.to-top .icon{position:relative;z-index:1;width:24px;height:24px;color:var(--blue);stroke-width:2.4}
.to-top:hover .icon{color:var(--blue-700);transform:translateY(-2px);transition:transform var(--t)}
.to-top:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
@keyframes to-top-spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.to-top::before{animation:none}}
@media (max-width:480px){.to-top{right:14px;bottom:14px;width:50px;height:50px}}

/* Remove previously inserted promotional subline */
.hero .page-context-label,.hero .hero-subtitle,.hero .hero-tagline{display:none!important}