:root{--ink:#101418;--muted:#5b6672;--line:#dfe4ea;--bg:#ffffff;--alt:#f5f7f9;--accent:#0040ff;--accent2:#ff0040;--accent-d:#0030c0}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
main{min-height:60vh}
.site-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.5rem;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-weight:800;letter-spacing:.06em;font-size:1.05rem;color:var(--ink)}
.brand span{color:var(--accent)}
.site-head nav{display:flex;gap:1.25rem;align-items:center}
.site-head nav a{color:var(--muted);font-weight:600}
.site-head nav a.cta{color:#fff;background:var(--accent);padding:.5rem .9rem;border-radius:6px}
.hero{padding:4.5rem 1.5rem 3.5rem;max-width:900px;margin:0 auto;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);letter-spacing:-.02em}
.lede{font-size:1.15rem;color:var(--muted);max-width:62ch;margin:0 auto 1.5rem}
.chain{font-weight:700;letter-spacing:.14em;color:var(--accent);font-size:.95rem;margin:1.5rem 0}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:.8rem 1.4rem;border-radius:6px;font-weight:600;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--accent-d);text-decoration:none}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.band{padding:3rem 1.5rem;max-width:1100px;margin:0 auto}
.band.alt{background:var(--alt);max-width:none}
.band.alt>*{max-width:1100px;margin-left:auto;margin-right:auto}
.band h2{font-size:1.5rem}
.page-head{padding:3rem 1.5rem 1rem;max-width:900px;margin:0 auto}
.page-head h1{font-size:clamp(1.7rem,4vw,2.5rem)}
.big{font-size:1.25rem;max-width:60ch}
.steps{list-style:none;counter-reset:s;padding:0;display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.steps li{counter-increment:s;border-top:3px solid var(--accent);padding-top:.9rem}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;color:var(--accent);font-weight:800;font-size:.85rem;letter-spacing:.1em}
.steps strong{display:block;margin:.3rem 0}
.steps span{color:var(--muted);font-size:.95rem}
.tags{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
.tags li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.4rem .9rem;font-size:.9rem;color:var(--muted)}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.card{display:block;border:1px solid var(--line);border-radius:10px;padding:1.2rem;color:var(--ink)}
.card:hover{border-color:var(--accent);text-decoration:none}
.card h3{font-size:1.05rem;margin-bottom:.4rem}
.card .eq{color:var(--muted);font-size:.9rem;margin:0 0 .5rem}
.card .ai{color:var(--accent);font-size:.85rem;font-weight:600;margin:0}
.cta-band{border-top:1px solid var(--line);text-align:center}
.cta-band p{color:var(--muted);max-width:60ch;margin:0 auto 1.5rem}
.form{display:grid;gap:1rem;max-width:640px}
.form label{display:grid;gap:.35rem;font-weight:600;font-size:.9rem}
.form input,.form select,.form textarea{font:inherit;padding:.65rem .75rem;border:1px solid var(--line);border-radius:6px;font-weight:400;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.form .btn{justify-self:start}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.error{background:#fdecea;border:1px solid #f5c6c2;color:#8c1d13;padding:.8rem 1rem;border-radius:6px;max-width:640px}
.note{color:var(--muted);font-size:.9rem;max-width:60ch;margin-top:1.25rem}
.site-foot{border-top:1px solid var(--line);padding:2rem 1.5rem;color:var(--muted);font-size:.9rem;text-align:center}
.site-foot p{margin:.25rem 0}
@media(max-width:600px){.hero{padding:3rem 1.25rem 2.5rem}.band{padding:2.25rem 1.25rem}}
.status{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.25rem .6rem;border-radius:999px;margin:.7rem 0 0}
.status.live{background:#e6ecff;color:var(--accent-d)}
.status.dev{background:#f0f2f4;color:var(--muted)}
.band.alt{padding:0}
.band.alt>*{max-width:1100px;margin:0 auto;padding:3rem 1.5rem}
.hl{color:var(--accent2)}
.arch{border:1px solid var(--line);border-radius:10px;padding:1.2rem}
.arch h3{font-size:1rem;margin-bottom:.6rem}
.arch p{color:var(--muted);font-size:.92rem;margin:0}
.flow{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem!important;color:var(--accent)!important;background:var(--alt);padding:.6rem;border-radius:6px;margin-bottom:.7rem!important;line-height:1.7}
.svgwrap{margin:1.4rem 0;padding:1rem;border:1px solid var(--line);border-radius:10px;background:#fff}
.svgwrap svg{width:100%;height:auto;display:block}
.hero-dark{position:relative;background:#080d18 url('/img/hero.png') right center/cover no-repeat;border-radius:14px;overflow:hidden;margin:1.5rem 0;min-height:420px;display:flex;align-items:center}
.hero-dark::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#080d18 0%,rgba(8,13,24,.92) 42%,rgba(8,13,24,.35) 72%,rgba(8,13,24,.1) 100%)}
.hero-inner{position:relative;padding:3rem 2.4rem;max-width:600px}
.hero-dark h1{color:#fff;font-size:clamp(2rem,5vw,3.3rem);line-height:1.08;margin:0 0 1rem}
.hero-dark .lede{color:#c6d0e0;font-size:1.05rem;margin:0 0 1rem;max-width:440px}
.hero-dark .chain{color:#7fa4ff;letter-spacing:.13em;font-size:.82rem;font-weight:600;margin:0 0 1.6rem}
.hero-dark .btn{background:var(--accent);color:#fff;border:0}
@media(max-width:760px){.hero-dark{background-position:center;min-height:340px}.hero-dark::before{background:linear-gradient(180deg,rgba(8,13,24,.82),rgba(8,13,24,.94))}.hero-inner{padding:2.2rem 1.3rem}}
.prog-img{margin:1.4rem 0;border-radius:12px;overflow:hidden;background:#080d18;border:1px solid var(--line)}
.prog-img img{width:100%;height:auto;display:block}
.card-img{margin:-1.2rem -1.2rem .9rem;border-radius:10px 10px 0 0;overflow:hidden;background:#080d18;aspect-ratio:3/2}
.card-img img{width:100%;height:100%;object-fit:cover;display:block}
.brand{display:inline-flex;align-items:center;gap:.55rem}
.brand-logo{height:34px;width:auto;display:block}
@media(max-width:520px){.brand-logo{height:28px}}
.site-head .brand{display:flex!important;flex-direction:row!important;align-items:center;gap:.6rem;white-space:nowrap}
.brand-logo{height:42px!important;width:auto;flex:0 0 auto}
.hero-dark{min-height:520px}
.hero-inner{padding:3.4rem 2.8rem;max-width:640px}
.card-img{aspect-ratio:4/3}
.card-img img{object-fit:contain;background:#080d18}
@media(max-width:760px){.hero-dark{min-height:400px}}
.band{padding:2.2rem 0}
.band h2{margin:0 0 .7rem}
.band>p{margin:.5rem 0}
.band .tags{margin:1rem 0}
.band .note{margin-top:1rem}
.steps{margin:1.4rem 0}

/* ===== THEME SOMBRE ===== */
:root{--bg:#080d18;--alt:#0e1526;--line:#1e2b45;--ink:#e8edf6;--muted:#93a2bd}
body{background:#080d18;color:#e8edf6}
.site-head{background:#080d18;border-bottom:1px solid #1e2b45}
.brand{color:#e8edf6}
.site-head a{color:#c3cee0}
.site-head .cta{background:#0040ff;color:#fff}
h1,h2,h3{color:#fff}
p,li,span,td{color:#c3cee0}
.band{background:transparent}
.band.alt{background:#0e1526}
.lede,.big{color:#dbe3f0}
.note{color:#8b9ab5}
.tags li{background:#0e1526;border:1px solid #1e2b45;color:#c3cee0}
.card{background:#0e1526;border:1px solid #1e2b45}
.card:hover{border-color:#0040ff}
.card h3{color:#fff}
.card .eq{color:#93a2bd}
.card .ai{color:#7fa4ff}
.status.dev{background:#141d33;color:#93a2bd}
.status.live{background:#0d1c3d;color:#7fa4ff}
.arch{background:#0e1526;border:1px solid #1e2b45}
.arch h3{color:#fff}
.arch p{color:#a9b6cd}
.flow{background:#060a12!important;color:#7fa4ff!important}
.steps li strong{color:#fff}
.steps li span{color:#a9b6cd}
.svgwrap{background:#0e1526;border:1px solid #1e2b45}
.prog-img{background:#060a12;border:1px solid #1e2b45}
.card-img,.card-img img{background:#060a12}
.cta-band{background:#0e1526}
.site-foot{background:#060a12;border-top:1px solid #1e2b45;color:#8b9ab5}
.site-foot a{color:#7fa4ff}
input,textarea,select{background:#0e1526;border:1px solid #1e2b45;color:#e8edf6}
label{color:#c3cee0}
a{color:#7fa4ff}
.btn{background:#0040ff;color:#fff;border:0}
.hero-dark{border:1px solid #1e2b45}
.status.ready{background:#0d1c3d;color:#7fa4ff;border:1px solid #1e3a6b}