:root{
  --ink:#0d3b47; --ink-soft:#2c5560; --muted:#5f7a82;
  --teal:#0f5a6b; --teal-2:#17788b; --green:#0f6a54;
  --cream:#f3eee4; --paper:#fffdf8; --sand:#e8e1d1; --line:#d3c8b0;
  --amber-bg:#fef3c7;
  --radius:14px; --shadow:0 10px 30px rgba(13,59,71,.10);
  --font:"Century Gothic",CenturyGothic,"Apple Gothic","URW Gothic",Questrial,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
h1,h2,h3{font-family:var(--font);font-weight:700;line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h2{font-size:clamp(1.6rem,3.4vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--teal);color:#fff;padding:8px 12px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--teal-2);outline-offset:2px;border-radius:4px}
section[id]{scroll-margin-top:64px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---------- header: big logo bar + floating menu bar ---------- */
.brandbar{background:var(--paper);border-bottom:1px solid var(--line)}
.brandbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.brandbar .brand img{height:68px;width:auto}
.brandbar .mail{font-size:.9rem;font-weight:600;text-decoration:none;color:var(--ink-soft)}
.brandbar .mail:hover{color:var(--teal)}
@media(max-width:720px){.brandbar .brand img{height:52px}.brandbar .mail{display:none}}

.menubar{position:sticky;top:0;z-index:50;background:rgba(255,253,248,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.menubar .wrap{position:relative;display:flex;align-items:center;height:56px}
.menubar .mini{position:absolute;left:20px;top:50%;transform:translateY(-50%);opacity:0;pointer-events:none;transition:opacity .2s}
.menubar .mini img{height:28px;width:auto}
.menubar.scrolled .mini{opacity:1;pointer-events:auto}
@media(max-width:1240px){.menubar .mini{display:none}}
.menubar nav{flex:1;min-width:0;display:flex;align-items:center;gap:4px;font-size:.92rem;font-weight:500;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.menubar nav::-webkit-scrollbar{display:none}
.menubar nav a{flex:none;text-decoration:none;color:var(--ink-soft);padding:8px 11px;border-radius:999px}
.menubar nav a:first-child{margin-left:auto}
.menubar nav a.btn{margin-right:auto;margin-left:8px;padding:8px 20px;color:#fff;font-size:.9rem}
.menubar nav a:hover{color:var(--teal);background:#e9f1f2}
.menubar nav a.btn:hover{background:var(--teal-2);color:#fff}
.menubar nav a.active{color:var(--teal);background:#d9ebee;font-weight:700}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;text-decoration:none;border:2px solid transparent;font-size:.98rem;cursor:pointer;transition:transform .12s, background .12s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--teal);color:#fff!important}
.btn-primary:hover{background:var(--teal-2)}
.btn-ghost{background:transparent;color:var(--teal)!important;border-color:var(--teal)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;padding:60px 0 64px;background:linear-gradient(135deg,#0a2f3a 0%,#0f5a6b 58%,#17788b 100%)}
.hero::before{content:"";position:absolute;right:-12%;bottom:-45%;width:70%;aspect-ratio:1;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 65%);pointer-events:none}
.hero .grid{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
@media(max-width:960px){.hero .grid{grid-template-columns:1fr;gap:36px}}
.eyebrow{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#d6eef2;background:rgba(255,255,255,.14);padding:6px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{color:#fff;font-size:clamp(2.2rem,4.4vw,3.4rem);margin-bottom:.45em}
.hero h1 span{display:block;color:#a9dde5;font-size:.5em;line-height:1.3;margin-top:.7em;text-wrap:balance}
.hero p.lead{font-size:1.1rem;color:#d6e8ec;max-width:30em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:0;list-style:none}
.chips li{font-size:.82rem;font-weight:600;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 16px}
.btn-light{background:#fff;color:var(--teal)!important}
.btn-light:hover{background:#eaf5f7}
.btn-outline-light{border-color:rgba(255,255,255,.7);color:#fff!important}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.hero .microcopy{font-size:.82rem;color:#b9d3d8;margin:0}

.stage{min-width:0}
.frame{background:var(--paper);border-radius:14px;box-shadow:0 30px 60px rgba(0,0,0,.35);overflow:hidden;border:1px solid rgba(255,255,255,.28)}
.frame .bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:#ece5d3;border-bottom:1px solid var(--line)}
.frame .bar i{width:10px;height:10px;border-radius:50%;background:#cbbf9f}
.frame .bar b{margin-left:10px;font-size:.74rem;font-weight:600;color:var(--muted)}
.slides{position:relative;aspect-ratio:16/10;background:#f8f4ea}
.slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .6s ease}
.slide.active{opacity:1}
.slide img{width:100%;height:100%;object-fit:contain;object-position:center}
.tabs{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px}
.tab{font:inherit;font-size:.85rem;font-weight:600;padding:8px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.38);background:transparent;color:#e3f1f4;cursor:pointer}
.tab:hover{background:rgba(255,255,255,.12)}
.tab[aria-selected="true"]{background:#fff;color:var(--teal);border-color:#fff}
.cap{text-align:center;color:#d6e8ec;font-size:.88rem;margin:12px auto 0;max-width:38em;min-height:3em}

.trust{background:var(--paper);border-block:1px solid var(--line)}
.trust ul{list-style:none;margin:0;padding:18px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;font-size:.92rem;font-weight:600;color:var(--ink-soft)}
.trust li::before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}
@media(max-width:820px){.trust ul{grid-template-columns:1fr 1fr}}

section.block{padding:68px 0}
.block.alt{background:var(--paper);border-block:1px solid var(--line)}
.sec-head{max-width:46em;margin-bottom:34px}
.sec-head p{color:var(--ink-soft);font-size:1.05rem}

.shot{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin:0}
.shot img{width:100%}
.shot figcaption{padding:10px 14px;font-size:.82rem;color:var(--muted);border-top:1px solid var(--line)}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s;list-style:none;padding:0;margin:0}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.steps li{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;counter-increment:s}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;font-weight:700;margin-bottom:12px}
.steps h3{font-size:1.05rem;font-family:inherit;font-weight:700}
.steps p{font-size:.92rem;color:var(--ink-soft);margin:0}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:820px){.cards{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.card.featured{border:2px solid var(--teal)}
.tag{align-self:flex-start;font-size:.72rem;font-weight:700;letter-spacing:.08em;color:var(--green);background:#d1fae5;padding:4px 10px;border-radius:999px;margin-bottom:10px}
.card .for{color:var(--ink-soft);font-size:.95rem}
.card ul{padding-left:0;list-style:none;margin:6px 0 22px;flex:1}
.card li{padding:6px 0 6px 26px;position:relative;font-size:.95rem}
.card li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.card .meta{font-size:.8rem;color:var(--muted);margin-top:10px}
.download-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:10px}
.card .download-meta .meta{margin:0}
.note{font-size:.9rem;color:var(--ink-soft);margin-top:18px}

.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.94rem}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--sand);font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
td:not(:first-child),th:not(:first-child){text-align:center}
tr:last-child td{border-bottom:0}
.yes{color:var(--green);font-weight:800}
.no{color:#9aa9ae}

.callout{display:grid;grid-template-columns:auto 1fr;gap:18px;background:var(--amber-bg);border:1px solid #f1d58a;border-radius:var(--radius);padding:22px 24px}
.callout .ic{font-size:1.6rem;line-height:1}
.callout h3{font-family:inherit;font-size:1.05rem;font-weight:700;margin-bottom:.3em}
.callout p{margin:0;font-size:.95rem;color:#5b3a0a}
.callout ol{margin:.6em 0 0;padding-left:1.2em;font-size:.95rem;color:#5b3a0a}

.two{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
@media(max-width:820px){.two{grid-template-columns:1fr}}
.checks{list-style:none;padding:0;margin:0}
.checks li{padding:8px 0 8px 28px;position:relative}
.checks li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.gallery{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.gallery{grid-template-columns:1fr}}
.gallery figure{margin:0}
.thumb{display:block;aspect-ratio:16/10;background:#f8f4ea;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:contain}
.pill{display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--teal);background:#d9ebee;padding:3px 9px;border-radius:999px;margin-top:12px}
.pill.plus{color:#7a4a05;background:#fde8b8}
.gallery h3{font-family:inherit;font-size:1rem;font-weight:700;margin:6px 0 4px}
.gallery p{font-size:.9rem;color:var(--ink-soft);margin:0}

.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:0;margin-bottom:10px}
.faq summary{cursor:pointer;list-style:none;padding:16px 20px;font-weight:600;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.3rem;color:var(--teal);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 20px 18px;color:var(--ink-soft);font-size:.96rem}

.contact{max-width:420px}
.contact div{background:var(--cream);border:1px solid var(--line);border-radius:12px;padding:18px}
.contact b{display:block;margin-bottom:4px}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.features{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.features{grid-template-columns:1fr}}
.fcard{background:var(--paper);border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.fcard h3{font-size:1.05rem;margin-bottom:.4em}
.fcard p{font-size:.92rem;color:var(--ink-soft);margin:0}
.stack{display:grid;gap:22px;min-width:0}
.gcards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:960px){.gcards{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.gcards{grid-template-columns:1fr}}
.gcard{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .12s}
.gcard:hover{transform:translateY(-2px);border-color:var(--teal)}
.gcard h3{margin:.2em 0 .3em;font-size:1.08rem;color:var(--teal)}
.gcard p{margin:0;color:var(--ink-soft);font-size:.92rem}
.gcard .time{font-size:.74rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.gallery figure.big{grid-column:span 2}
@media(max-width:560px){.gallery figure.big{grid-column:auto}}
.pill.lite{color:#0f6a54;background:#d1fae5}
.sha{margin-top:12px;font-size:.78rem;color:var(--muted)}
.sha summary{cursor:pointer;font-weight:600;color:var(--ink-soft)}
.sha code{display:block;margin-top:6px;padding:8px 10px;background:var(--cream);border:1px solid var(--line);border-radius:8px;word-break:break-all;font-size:.74rem;color:var(--ink)}
.sha-main{margin-top:18px;font-size:.85rem}
.sha-line{margin:8px 0 0;font-size:.85rem}
.sha-line b{display:inline-block;min-width:3em}
.sha-help{font-size:.88rem;color:var(--ink-soft);margin:10px 0 0}
.sha-help code{background:var(--sand);padding:2px 6px;border-radius:6px;font-size:.82rem}
.frame .bar b em{font-style:normal;color:var(--teal);font-weight:700}
footer{background:var(--ink);color:#cfe0e4;padding:40px 0;font-size:.88rem}
footer a{color:#fff}
footer .legal{max-width:60em;opacity:.85;margin-top:14px}

/* ---------- guides ---------- */
.crumbs{font-size:.85rem;color:var(--muted);padding:22px 0 0}
.crumbs a{color:var(--ink-soft);text-decoration:none}.crumbs a:hover{color:var(--teal);text-decoration:underline}
.ghead{padding:14px 0 26px}
.ghead h1{font-size:clamp(1.9rem,4vw,2.7rem);margin:.2em 0 .35em}
.ghead .lead{font-size:1.1rem;color:var(--ink-soft);max-width:44em}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:.84rem;color:var(--muted);margin-top:14px}
.article{max-width:820px}
.article h2{font-size:1.5rem;margin:1.6em 0 .5em}
.article h3{font-size:1.1rem;margin:1.2em 0 .3em}
.article p,.article li{font-size:1.02rem}
.article ul,.article ol{padding-left:1.3em}
.article li{margin:.3em 0}
.article code{background:var(--sand);padding:2px 6px;border-radius:6px;font-size:.88em}
.gstep{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:34px 0 0;padding-top:6px}
.gstep .n{width:40px;height:40px;border-radius:50%;background:var(--teal);color:#fff;font-weight:700;display:grid;place-items:center;font-size:1.1rem}
.gstep h2{margin:.35em 0 0}
.gstep .body{grid-column:2}
.shot.small{max-width:720px}
.vid{margin:22px 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#0b2f39}
.vid video{display:block;width:100%;height:auto}
.vid figcaption{padding:10px 14px;font-size:.84rem;color:#cfe0e4}
.tip{background:#e9f4ef;border:1px solid #b7dccb;border-radius:var(--radius);padding:16px 20px;margin:20px 0;font-size:.97rem}
.tip b:first-child{color:var(--green)}
.tbl{margin:18px 0}
.tbl table{min-width:480px}
.tbl td:not(:first-child),.tbl th:not(:first-child){text-align:left}
.gcards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:26px 0}
@media(max-width:720px){.gcards{grid-template-columns:1fr}}
.gcard{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .12s}
.gcard:hover{transform:translateY(-2px);border-color:var(--teal)}
.gcard h3{margin:.2em 0 .3em;font-size:1.15rem;color:var(--teal)}
.gcard p{margin:0;color:var(--ink-soft);font-size:.95rem}
.gcard .time{font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.next{display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 10px}
.checkbox{list-style:none;padding:0}.checkbox li{padding-left:28px;position:relative}.checkbox li::before{content:"\2610";position:absolute;left:0;color:var(--teal);font-weight:700}