:root{--ink:#173e3c;--muted:#667976;--teal:#235c55;--line:#d8e3dc;--paper:#f6f7f2;--mint:#e0ebe2}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px 'IBM Plex Sans',sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,select{cursor:pointer}button{color:inherit}button:disabled{opacity:.4;cursor:default}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #7ca995;outline-offset:4px}::selection{background:#c8e2d1}.shell{max-width:1600px;margin:auto;padding:0 4.5vw}header{height:92px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative;z-index:3}.brand{display:flex;gap:14px;align-items:center}.brand b{font:700 26px Manrope,sans-serif;letter-spacing:-1px}.brand>span{border-left:1px solid #bfcfc6;padding-left:14px;font-size:12px}.brand small{display:block;color:var(--muted);font-size:10px;margin-top:3px}.nav{display:flex;gap:25px;align-items:center;font-size:12px}.nav a{padding:12px 0}.nav a.active{border-bottom:2px solid var(--teal)}.lang{display:flex;gap:1px}.lang button{border:0;background:transparent;border-radius:50%;width:36px;height:36px;font-size:11px}.lang button[aria-pressed=true]{background:#e2eae1}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:500;text-transform:uppercase;display:flex;align-items:center;gap:10px}.eyebrow:before{content:'';height:6px;width:6px;border-radius:50%;background:#598b75}.landing{position:relative;min-height:calc(100svh - 92px);display:flex;flex-direction:column}.hero{position:relative;flex:1;min-height:530px;display:flex;align-items:center;padding:55px 0 65px}.hero-copy{position:relative;z-index:2;max-width:610px;pointer-events:none}.hero-copy a{pointer-events:auto}h1{font-family:Manrope,sans-serif;font-weight:500;letter-spacing:-3.5px;line-height:1.07;font-size:clamp(54px,5.7vw,86px);margin:25px 0}.hero h1 span{display:block;color:#688d7a}.lead{font-size:16px;line-height:1.75;color:var(--muted);max-width:425px}.actions{display:flex;align-items:center;gap:25px;margin-top:31px}.primary{background:var(--teal);border:1px solid var(--teal);color:white;display:inline-flex;align-items:center;justify-content:space-between;gap:35px;min-height:49px;padding:14px 21px;border-radius:6px;font-size:13px;font-weight:500;transition:background .2s}.primary:hover{background:#15473f}.secondary{display:inline-flex;align-items:center;gap:25px;border-bottom:1px solid #afc3b8;min-height:45px;font-size:13px}.hero-note{font-size:11px;color:var(--muted);margin-top:18px;max-width:385px;line-height:1.6}.art{position:absolute;right:-5vw;top:0;width:75%;height:100%;overflow:hidden;pointer-events:none}.art svg{position:absolute;right:-10%;top:50%;transform:translateY(-48%);width:100%;min-width:730px;height:800px}.art:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,var(--paper),#f6f7f233 23%,transparent 60%)}.ring-one{transform-origin:580px 420px;animation:float 17s ease-in-out infinite}.ring-two{transform-origin:580px 420px;animation:float 22s ease-in-out infinite reverse}@keyframes float{50%{transform:translate(0,-20px) rotate(6deg)}}.paused .ring-one,.paused .ring-two{animation-play-state:paused}.graphic-label{position:absolute;right:8%;bottom:14%;z-index:1;background:#ffffffa6;border:1px solid #cadacf;padding:12px 16px;border-radius:24px;backdrop-filter:blur(9px);font-size:10px;letter-spacing:1.2px;color:#547767}.strip{border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);padding:24px 0;gap:30px;position:relative}.strip article{display:flex;gap:15px}.strip small{font-size:10px;color:#7b9184;padding-top:4px}.strip h2{font:600 14px Manrope,sans-serif;margin:0 0 6px}.strip p{font-size:11px;line-height:1.6;margin:0;color:var(--muted);max-width:300px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;align-items:center;padding:16px 0;font-size:10px;color:var(--muted)}footer button{border:0;background:none;color:var(--muted);font-size:10px;padding:10px 0;min-height:40px}.demo{font-size:11px;line-height:1.6;color:#786a47;position:relative}.demo summary{cursor:pointer;list-style:none;display:inline-flex;gap:7px;align-items:center;min-height:36px}.demo summary:before{content:'';width:5px;height:5px;border-radius:50%;background:#a68d51}.demo p{background:#f6f0e1;border:1px solid #e5dbbd;border-radius:6px;padding:12px;max-width:620px}.demo-strip{margin:22px 0 0;background:#f5f0e4;border:1px solid #e6ddc6;color:#7d6d48;padding:11px 15px;border-radius:6px;font-size:11px;line-height:1.6}.form-layout{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(420px,1.2fr);gap:8%;padding:40px 0 48px;align-items:start;max-width:1300px;margin:auto;min-height:calc(100svh - 210px)}.aside{padding-top:23px;position:sticky;top:35px}.aside h1{font-size:46px;letter-spacing:-2px;line-height:1.15;margin-top:20px}.aside .lead{font-size:14px;max-width:330px}.aside-note{font-size:12px;color:var(--muted);line-height:1.8;max-width:335px;margin-top:25px}.aside-note a{color:var(--ink);border-bottom:1px solid #adc2b5}.aside-graphic{height:145px;position:relative;overflow:hidden;margin-top:20px;opacity:.8}.aside-graphic:before,.aside-graphic:after{content:'';position:absolute;width:220px;height:90px;border:1px solid #9abca7;border-radius:50%;transform:rotate(-27deg);left:0;top:20px;box-shadow:0 0 0 9px #f6f7f2,0 0 0 10px #b9cfc0,0 0 0 19px #f6f7f2,0 0 0 20px #d1ded1}.aside-graphic:after{left:85px;top:40px;transform:rotate(27deg)}.card{border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 15px 40px #153b2905;padding:30px;min-width:0}.steps{display:flex;justify-content:space-between;border-bottom:1px solid #e4eae5;padding-bottom:24px;margin-bottom:27px;gap:10px}.step{display:flex;align-items:center;gap:8px;color:#7e8c84;font-size:11px}.step b{display:grid;place-items:center;width:25px;height:25px;border:1px solid #d7e0d9;border-radius:50%;font-weight:500}.step.current{color:var(--teal)}.step.current b{background:var(--teal);border-color:var(--teal);color:white}.step.done b{background:#e8f0e8;color:#406f56}.card h2{font:600 23px Manrope,sans-serif;letter-spacing:-.6px;margin:0 0 8px}.card .description{font-size:12px;line-height:1.6;color:var(--muted);margin:0 0 23px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{min-width:0}.field.full{grid-column:1/-1}label{font-size:12px;display:block;margin-bottom:8px;font-weight:500}input,select{width:100%;min-height:46px;border:1px solid #cddad1;border-radius:6px;background:#fbfcfa;color:var(--ink);padding:10px 13px;font-size:14px}input::placeholder{font-size:12px;color:#89958e}.field small{display:block;font-size:10px;line-height:1.6;color:var(--muted);margin-top:6px}.form-actions{border-top:1px solid #e5ebe6;margin-top:26px;padding-top:21px;display:flex;justify-content:space-between;align-items:center;gap:20px}.back{border:0;background:none;font-size:12px;padding:12px 0;min-height:44px}.required-note{font-size:10px;color:var(--muted)}.preview-note{font-size:10px;line-height:1.6;color:#839188;margin:13px 0 0}.notice{padding:14px;background:#eef4ee;color:#61796a;border:1px solid #deeadf;border-radius:6px;font-size:12px;line-height:1.7;margin-top:20px}.review-list{margin:20px 0;display:grid;gap:15px}.review-list div{display:grid;grid-template-columns:1fr 1.5fr;gap:15px;border-bottom:1px solid #e9ede9;padding-bottom:13px}.review-list dt{font-size:11px;color:var(--muted)}.review-list dd{font-size:13px;margin:0;overflow-wrap:anywhere}.success{padding:25px 0}.success .success-mark{display:grid;place-items:center;background:#e4efe5;color:#427555;border-radius:50%;width:52px;height:52px;margin-bottom:23px;font-size:25px}.success p{font-size:14px;line-height:1.8;color:var(--muted)}.switcher{display:flex;background:#eef2ec;border-radius:7px;padding:4px;margin-bottom:28px}.switcher button{flex:1;background:none;border:0;border-radius:5px;padding:11px;font-size:12px}.switcher button[aria-pressed=true]{background:white;box-shadow:0 2px 8px #183c2910}.login-fields{display:grid;gap:20px}.password-wrap{position:relative}.password-wrap input{padding-right:65px}.show{position:absolute;right:4px;top:4px;bottom:4px;padding:0 9px;background:transparent;border:0;font-size:10px;min-width:48px}.wide{width:100%;margin-top:24px}.invitation-box{margin-top:26px;border-top:1px solid #e4ebe5;padding-top:18px;font-size:12px;line-height:1.8;color:var(--muted)}.invitation-box strong{color:var(--ink);font-weight:500;display:block}.feedback{font-size:12px;line-height:1.7;background:#edf4ee;border-radius:6px;padding:13px;margin-top:17px}.feedback:empty{display:none}[hidden]{display:none!important}
@media(max-width:1000px){.form-layout{gap:5%;grid-template-columns:.8fr 1.2fr}.aside h1{font-size:38px}.card{padding:25px}.hero h1{font-size:62px}.hero-copy{max-width:510px}.art{right:-10%;width:85%}.nav{gap:16px}}
@media(max-width:760px){.shell{padding:0 23px}header{height:82px}.brand b{font-size:22px}.brand>span{font-size:10px;padding-left:10px}.brand{gap:10px}.brand small{font-size:9px}.nav>a{display:none}.nav{gap:0}.lang button{width:32px;height:36px}.hero{display:block;padding-top:42px;min-height:735px}.hero h1{font-size:clamp(46px,9vw,65px);letter-spacing:-2.5px}.hero-copy{max-width:100%}.lead{font-size:15px}.actions{gap:20px;flex-wrap:wrap;margin-top:24px}.art{top:360px;width:145%;right:-25%;height:410px;opacity:.8}.art svg{min-width:550px;height:560px;right:-5%}.art:after{background:linear-gradient(180deg,var(--paper),transparent 35%)}.graphic-label{display:none}.strip{grid-template-columns:1fr;gap:22px;padding:25px 0}.strip p{max-width:100%}footer{flex-wrap:wrap;gap:6px}.form-layout{grid-template-columns:1fr;gap:26px;padding:20px 0 30px}.aside{position:static;padding-top:10px}.aside h1{font-size:36px;margin:15px 0}.aside-graphic{display:none}.aside .lead,.aside-note{max-width:100%}.aside-note{margin-top:13px}.card{padding:22px}.fields{grid-template-columns:1fr}.field.full{grid-column:auto}.steps{gap:6px}.step{font-size:10px;gap:5px}.step b{width:22px;height:22px}.card h2{font-size:22px}.form-actions{gap:14px}.primary{gap:18px;padding:13px 17px}.required-note{max-width:90px}.demo-strip{margin-top:17px;font-size:10px}.review-list div{grid-template-columns:1fr;gap:5px}}
@media(prefers-reduced-motion:reduce){.ring-one,.ring-two{animation:none}*{transition:none!important}}


.landing{overflow:hidden}


/* Blue signal-network concept — replaces the interlocking-ring artwork. */
:root{--ink:#14274a;--muted:#4d617e;--teal:#254cec;--line:#d4def0;--paper:#f6f8ff;--mint:#e7eeff}
body{background:var(--paper)}::selection{background:#c8d7ff}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline-color:#315bff}
.brand b{color:#2349ed}.brand>span{border-color:#c2d0e8}.brand small{color:#50688e}
.lang button[aria-pressed=true]{background:#e1eaff;color:#2047d6}.eyebrow{color:#234dcf}.eyebrow:before{background:#2c58ef}
.hero h1{font-weight:600}.hero h1 span{color:#234cec}.primary{box-shadow:0 7px 18px #254cec16}.primary:hover{background:#1739c2}.secondary{border-color:#809aca;color:#173a80}
.art:after{background:linear-gradient(90deg,var(--paper),#f6f8ff33 22%,transparent 48%)}
.art{width:76%;right:-5vw}.art svg{height:830px;right:-5%;opacity:1}
.graphic-label{background:#ffffffdf;border-color:#bacdf3;color:#284fac;font-weight:500;right:5%;bottom:7%;border-radius:6px}
.flow-primary,.flow-secondary{transform-origin:650px 410px;animation:signal-drift 16s ease-in-out infinite}.flow-secondary{animation-direction:reverse;animation-duration:21s}.data-pulses{stroke-dasharray:8 160;animation:transmit 9s linear infinite;opacity:.7}
@keyframes signal-drift{50%{transform:translate(0,-13px) rotate(2deg)}}@keyframes transmit{to{stroke-dashoffset:-336}}
.paused .flow-primary,.paused .flow-secondary,.paused .data-pulses{animation-play-state:paused}
.strip small{color:#3254a2}.strip h2{color:#162e59}.strip p{color:#4d617e}.strip{border-color:#cbd8ef}.hero-note{color:#4d617e}
.card{border-color:#cbd8ec;box-shadow:0 15px 45px #203c9008}.card h2{color:#172e55}.card .description{color:#4d617e}
.step{color:#586c8a}.step b{border-color:#b9cbe3}.step.done b{background:#e4ecff;color:#244dc5}.steps{border-color:#d7e1f1}
input,select{border-color:#b6c7e0;background:#fbfcff;color:#14274a}input::placeholder{color:#627697}label{color:#18335b}.form-actions,.invitation-box{border-color:#d6e0f0}
.switcher{background:#e8eef9}.switcher button[aria-pressed=true]{color:#1d47cb;box-shadow:0 2px 8px #2249ad12}.show{color:#2349c4}
.notice,.feedback{background:#edf2ff;border-color:#cbd9f5;color:#38547c}.preview-note{color:#526c8b}.success .success-mark{background:#e4edff;color:#244fe8}.aside-note a{border-color:#8ea7d0;color:#2041a0}
.aside-graphic{height:150px;background:linear-gradient(135deg,transparent 46%,#9dbafa 46%,#9dbafa 46.4%,transparent 46.4%),linear-gradient(45deg,transparent 54%,#c0d3fa 54%,#c0d3fa 54.5%,transparent 54.5%);opacity:1}
.aside-graphic:before,.aside-graphic:after{width:54px;height:54px;border-radius:12px;transform:rotate(-12deg);box-shadow:12px 12px 0 #e0eaff,12px 12px 0 1px #c3d4f7;background:#fff;border-color:#779cf0;left:43px;top:20px}
.aside-graphic:after{width:42px;height:42px;left:207px;top:76px;background:#2b55e8;border-color:#2b55e8;transform:rotate(12deg);box-shadow:8px 8px 0 #e0eaff}
@media(max-width:1000px){.art{width:86%;right:-10%}}
@media(max-width:760px){.art{width:145%;right:-25%;opacity:1;top:385px;height:425px}.art svg{min-width:580px;height:590px;right:-5%}.art:after{background:linear-gradient(180deg,var(--paper),#f6f8ff88 15%,transparent 40%)}.hero{min-height:795px}.network-nodes{opacity:.9}}
@media(prefers-reduced-motion:reduce){.flow-primary,.flow-secondary,.data-pulses{animation:none}}

/* --- integration additions (s1571) --- */
.form-error{background:#fbefec;border:1px solid #efd2cb;color:#8a3b2c;border-radius:6px;padding:12px 14px;font-size:12px;line-height:1.7;margin:0 0 20px}
.nav a.session{display:inline}
@media(max-width:760px){.nav>a.session{display:inline;font-size:11px;margin-right:10px}}
.primary[aria-busy=true]{opacity:.7;cursor:progress}