:root{color-scheme:dark;--page:#020d1e;--left:#03172e;--right:#031326;--card:rgba(8,30,54,.9);--border:rgba(76,137,181,.34);--input:#0a2743;--input-border:#244762;--text:#f4f8fc;--muted:#91a8bc;--accent:#13cce5;--blue:#0da1dc;--error:#ff9b9b;--error-bg:rgba(239,68,68,.1)}html[data-theme=light]{color-scheme:light;--page:#edf5fa;--left:#e4f2f8;--right:#f5f9fc;--card:rgba(255,255,255,.94);--border:#c7dce8;--input:#f5f9fc;--input-border:#c4d7e3;--text:#10283d;--muted:#5e7588;--error:#b42318;--error-bg:#fff1ef}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}body{font-family:"Segoe UI",Arial,sans-serif;background:var(--page);color:var(--text)}button,input{font:inherit}.login-shell{display:grid;grid-template-columns:52% 48%;width:100%;height:100vh;height:100dvh;overflow:hidden}.brand-panel{position:relative;min-width:0;height:100%;padding:clamp(30px,4.2vw,62px) clamp(34px,6vw,84px);background:radial-gradient(ellipse at 40% 70%,rgba(9,174,221,.16),transparent 35%),radial-gradient(circle at 15% 0,rgba(16,103,176,.13),transparent 38%),linear-gradient(137deg,#061d39 0%,#03162d 54%,#021126 100%);isolation:isolate;overflow:hidden}.brand-panel:before{content:"";position:absolute;inset:0;background:linear-gradient(132deg,transparent 0 28%,rgba(17,161,205,.035) 28% 43%,transparent 43%);pointer-events:none}.brand-panel:after{content:"";position:absolute;left:8%;bottom:-12%;width:70%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(13,198,229,.13),rgba(7,111,174,.045) 40%,transparent 69%);filter:blur(14px);z-index:-1}.login-logo{position:relative;z-index:2;display:block;width:clamp(142px,12vw,170px);color:#edf8fe;text-decoration:none}.login-logo svg{display:block;width:100%;height:auto;overflow:visible}.login-logo g{fill:none;stroke:#16d5ef;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 5px rgba(22,213,239,.22))}.login-logo text{fill:currentColor;font-size:22px;font-weight:700}.login-logo .ai{fill:#16d5ef}.brand-copy{position:relative;z-index:2;margin-top:clamp(42px,7vh,68px)}.brand-copy h1{margin:0;max-width:540px;font-size:clamp(2rem,3.1vw,3.2rem);font-weight:700;line-height:1.09;letter-spacing:-.035em}.brand-copy h1 span{color:var(--accent);text-shadow:0 0 18px rgba(19,204,229,.18)}.brand-copy p{margin:20px 0 0;color:#9db3c5;font-size:clamp(.84rem,1vw,1rem);line-height:1.55}.network{position:absolute;z-index:1;left:clamp(24px,5vw,72px);bottom:clamp(12px,3vh,34px);width:min(430px,47vw,53vh);filter:drop-shadow(0 0 20px rgba(15,177,219,.13))}.network:before{content:"";position:absolute;inset:15%;border-radius:50%;background:rgba(10,181,224,.09);filter:blur(28px)}.network svg{position:relative;display:block;width:100%;height:auto;overflow:visible}.lines{fill:none;stroke:#137cae;stroke-width:1.35;opacity:.75}.node circle{fill:#06213b;stroke:#158ab7;stroke-width:1.35}.node path,.node circle+path{fill:none;stroke:#90bed0;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.core circle:first-child{fill:#05213b;stroke:#0b8fbd;stroke-width:1.7}.core circle:nth-child(2){fill:#072c49;stroke:#19cae6;stroke-width:2;filter:drop-shadow(0 0 12px rgba(25,202,230,.48))}.core path{fill:none;stroke:#22d8ef;stroke-width:2.7;stroke-linecap:round;stroke-linejoin:round}.form-panel{position:relative;display:grid;place-items:center;min-width:0;height:100%;padding:clamp(28px,4vw,54px);background:radial-gradient(circle at 52% 47%,rgba(17,101,168,.09),transparent 43%),linear-gradient(145deg,#03162b,var(--right));border-left:1px solid rgba(48,87,120,.22);overflow:hidden}.form-panel:before{content:"";position:absolute;width:430px;height:430px;border-radius:50%;background:rgba(10,116,181,.055);filter:blur(50px);pointer-events:none}.theme-toggle{position:absolute;z-index:3;top:20px;right:22px;display:grid;place-items:center;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:9px;background:var(--card);color:var(--muted);cursor:pointer}.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}.login-card{position:relative;z-index:2;width:min(370px,100%);padding:32px 30px 30px;border:1px solid var(--border);border-radius:12px;background:var(--card);box-shadow:0 18px 45px rgba(0,0,0,.3),0 0 38px rgba(18,138,194,.065),inset 0 1px rgba(255,255,255,.025);backdrop-filter:blur(16px)}.login-card:before{content:"";position:absolute;inset:-1px;border-radius:inherit;box-shadow:0 0 18px rgba(16,157,209,.08);pointer-events:none}.login-card header{margin-bottom:24px}.login-card h2{margin:0;font-size:1.45rem;line-height:1.2;letter-spacing:-.02em}.login-card header p{margin:7px 0 0;color:var(--muted);font-size:.75rem}.login-card form{display:grid;gap:16px}.login-card label{display:grid;gap:7px;font-size:.71rem;font-weight:650}.input-wrap{display:grid;grid-template-columns:17px minmax(0,1fr) auto;gap:8px;align-items:center;height:42px;padding:0 11px;border:1px solid var(--input-border);border-radius:6px;background:var(--input);color:var(--muted);transition:border-color .18s,box-shadow .18s}.input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(19,204,229,.1),0 0 14px rgba(19,204,229,.09)}.input-wrap>svg,.password-toggle svg,.submit svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.input-wrap input{min-width:0;width:100%;height:40px;padding:0;border:0;outline:0;background:transparent;color:var(--text);font-size:.74rem}.input-wrap input::placeholder{color:color-mix(in srgb,var(--muted) 70%,transparent)}.password-toggle{display:grid;place-items:center;width:28px;height:28px;padding:0;border:0;background:transparent;color:var(--muted);cursor:pointer}.password-toggle:hover,.password-toggle.visible{color:var(--accent)}.form-meta{display:flex;justify-content:flex-end;margin-top:-8px}.form-meta button{font:inherit;font-size:.66rem;color:var(--accent);text-decoration:none;border:0;padding:0;background:transparent}.form-meta button:hover:not(:disabled){text-decoration:underline}.form-meta button:disabled{opacity:.72;cursor:not-allowed}.submit{display:flex;align-items:center;justify-content:center;gap:8px;height:42px;margin-top:1px;border:0;border-radius:6px;background:linear-gradient(90deg,#10bfdc,#0aaee2);box-shadow:0 8px 20px rgba(10,173,220,.22),0 0 16px rgba(15,194,225,.1);color:#fff;font-size:.75rem;font-weight:750;cursor:pointer;transition:transform .16s,box-shadow .16s}.submit:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(10,173,220,.3),0 0 20px rgba(15,194,225,.14)}.form-error{margin:-7px 0 16px;padding:9px 10px;border:1px solid color-mix(in srgb,var(--error) 40%,transparent);border-radius:6px;background:var(--error-bg);color:var(--error);font-size:.7rem;line-height:1.4}html[data-theme=light] .brand-panel{background:radial-gradient(ellipse at 40% 70%,rgba(8,177,216,.14),transparent 36%),linear-gradient(137deg,#e4f4fa,#f4fafc 54%,#e1f0f7)}html[data-theme=light] .form-panel{background:radial-gradient(circle at 52% 47%,rgba(17,137,188,.075),transparent 43%),var(--right)}html[data-theme=light] .login-logo{color:#102d42}html[data-theme=light] .brand-copy p{color:#59778b}html[data-theme=light] .node circle{fill:#effafd}html[data-theme=light] .node path{stroke:#3c7185}html[data-theme=light] .core circle:first-child{fill:#dff4f9}html[data-theme=light] .core circle:nth-child(2){fill:#f1fbfd}html[data-theme=light] .login-card{box-shadow:0 18px 42px rgba(31,74,103,.13),0 0 30px rgba(21,147,190,.05)}@media(max-height:760px) and (min-width:901px){.brand-panel{padding-top:26px;padding-bottom:20px}.login-logo{width:140px}.brand-copy{margin-top:32px}.brand-copy h1{font-size:2rem}.brand-copy p{margin-top:13px;font-size:.8rem}.network{width:min(350px,44vh);bottom:4px}.login-card{width:350px;padding:26px 27px}.login-card header{margin-bottom:18px}.login-card form{gap:13px}.input-wrap,.submit{height:39px}.input-wrap input{height:37px}}
@media(max-width:900px){html,body{height:auto;min-height:100%;overflow:auto}.login-shell{grid-template-columns:1fr;height:auto;min-height:100vh;overflow:visible}.brand-panel{height:auto;min-height:390px;padding:28px 28px 20px}.brand-copy{margin-top:36px}.brand-copy h1{font-size:clamp(2rem,7vw,3.2rem)}.network{position:relative;left:auto;bottom:auto;width:min(380px,75vw);margin:-16px auto -74px}.form-panel{height:auto;min-height:480px;padding:58px 22px 36px}.theme-toggle{top:14px;right:16px}}@media(max-width:520px){.brand-panel{min-height:350px;padding:24px 20px 14px}.login-logo{width:142px}.brand-copy{margin-top:28px}.brand-copy p{margin-top:14px}.network{width:92vw;margin:-10px auto -72px}.form-panel{min-height:450px;padding:52px 15px 28px}.login-card{padding:27px 22px}}

/* Design 4 reference alignment. */
.login-shell{grid-template-columns:51.5% 48.5%;background:linear-gradient(135deg,#061a33 0%,#03152b 47%,#031326 100%)}
.brand-panel{padding:clamp(30px,4.3vw,64px) clamp(34px,7.5vw,104px);background:radial-gradient(ellipse at 38% 69%,rgba(8,172,220,.15),transparent 34%),linear-gradient(135deg,rgba(7,31,58,.96),rgba(3,20,42,.94));}
.login-logo{width:clamp(128px,10.8vw,156px)}
.login-logo g{stroke-width:1.8;filter:drop-shadow(0 0 4px rgba(22,213,239,.2))}
.login-logo text{font-size:15px;font-weight:700;letter-spacing:-.15px}
.brand-copy{margin-top:clamp(48px,8.5vh,82px)}
.brand-copy h1{max-width:500px;font-size:clamp(2rem,2.8vw,2.85rem);line-height:1.12;letter-spacing:-.025em}
.brand-copy h1 span{color:var(--accent)}
.brand-copy p{margin-top:22px;font-size:clamp(.78rem,.88vw,.94rem);line-height:1.5}
.network{left:clamp(24px,6.2vw,86px);bottom:clamp(16px,4vh,42px);width:min(410px,43vw,49vh)}
.form-panel{padding:clamp(28px,4vw,52px);background:radial-gradient(circle at 50% 49%,rgba(17,101,168,.075),transparent 42%),rgba(3,19,38,.91);border-left-color:rgba(47,83,113,.14)}
.login-card{width:min(460px,78%);padding:34px 32px 32px;border-radius:10px;background:rgba(7,29,52,.9);box-shadow:0 18px 44px rgba(0,0,0,.28),0 0 32px rgba(18,138,194,.055),inset 0 1px rgba(255,255,255,.025)}
.login-card h2{font-size:1.4rem}.login-card header p{font-size:.72rem}.login-card form{gap:15px}
.input-wrap,.submit{height:41px}.input-wrap input{height:39px}
.theme-toggle{width:32px;height:32px;top:16px;right:18px;border-color:rgba(75,125,161,.22);background:rgba(7,29,52,.72);font-size:.78rem}
html[data-theme=light] .login-shell{background:linear-gradient(135deg,#e6f4f9,#f5fafc)}
html[data-theme=light] .brand-panel{background:radial-gradient(ellipse at 38% 69%,rgba(8,172,220,.12),transparent 34%),linear-gradient(135deg,rgba(230,246,251,.98),rgba(245,250,252,.96))}
html[data-theme=light] .form-panel{background:radial-gradient(circle at 50% 49%,rgba(17,137,188,.06),transparent 42%),rgba(247,251,253,.94)}
html[data-theme=light] .login-card{background:rgba(255,255,255,.94)}
@media(max-height:760px) and (min-width:901px){.brand-copy{margin-top:34px}.brand-copy h1{font-size:1.9rem}.network{width:min(330px,42vh)}.login-card{width:min(420px,78%);padding:27px 29px}}