.riv-welcome{--bg-deep:#070a11;--bg-surface:#090d15;--glass:#ffffff0f;--glass-hover:#ffffff1c;--glass-border:#ffffff21;--glass-border-top:#ffffff4d;--glass-inset:inset 0 1px 0 #fff3;--teal:#2fc6df;--teal-dim:#3da7c9;--teal-glow:#2fc6df59;--violet:#8b5cf6;--violet-bright:#a78bfa;--emerald:#69b578;--pink:#ec4899;--w-text:#ffffffed;--w-text-dim:#ffffff8c;--w-text-muted:#ffffff4d;--display:"Space Grotesk", var(--font-display), sans-serif;--mono:"JetBrains Mono", var(--font-geist-mono), monospace;font-family:var(--display);background:var(--bg-deep);color:var(--w-text);-webkit-font-smoothing:antialiased;position:fixed;inset:0;overflow:hidden}.riv-welcome .split{height:100%;display:flex;position:relative}.riv-welcome .spot{z-index:1;pointer-events:none;mix-blend-mode:screen;background:radial-gradient(680px circle at var(--mx,30%) var(--my,44%), #2fc6df4d 0%, #3da7c929 24%, #8b5cf61a 42%, transparent 66%);position:fixed;inset:0}.riv-welcome .formpane{background:radial-gradient(120% 80% at 22% 0%, #2fc6df0d, transparent 55%), var(--bg-surface);flex-shrink:0;justify-content:center;align-items:center;width:clamp(440px,45%,620px);padding:48px clamp(32px,5vw,72px);display:flex;position:relative}.riv-welcome .scene{width:100%;max-width:392px;transform-style:preserve-3d;z-index:10;animation:.85s cubic-bezier(.2,.7,.2,1) both rivFade;position:relative}@keyframes rivFade{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}.riv-welcome .plate{-webkit-backdrop-filter:blur(14px);will-change:transform;background:linear-gradient(#ffffff0a,#ffffff03);border:1px solid #ffffff14;border-radius:24px;position:absolute;box-shadow:0 20px 60px #0006}.riv-welcome .plate-a{opacity:.5;inset:-26px -34px 50px -18px;transform:translateZ(-90px)rotate(-3deg)}.riv-welcome .plate-b{opacity:.35;inset:36px -22px -28px -30px;transform:translateZ(-150px)rotate(2.4deg)}.riv-welcome .chip-float{color:var(--w-text-dim);border:1px solid var(--glass-border);-webkit-backdrop-filter:blur(20px)saturate(170%);box-shadow:0 14px 40px #0006, var(--glass-inset);will-change:transform;white-space:nowrap;z-index:7;background:#ffffff12;border-top-color:#ffffff3d;border-radius:13px;align-items:center;gap:7px;padding:8px 13px;font-size:11.5px;font-weight:600;display:flex;position:absolute}.riv-welcome .cf-dot{border-radius:50%;width:7px;height:7px}.riv-welcome .chip-1{top:-34px;left:-58px;transform:translateZ(80px)}.riv-welcome .chip-2{bottom:-30px;right:-50px;transform:translateZ(105px)}.riv-welcome .chip-3{top:48%;right:-78px;transform:translateZ(60px)}.riv-welcome .chip-1 .cf-dot{background:var(--emerald);box-shadow:0 0 9px #69b578cc}.riv-welcome .chip-2 .cf-dot{background:var(--teal);box-shadow:0 0 9px #2fc6dfcc}.riv-welcome .chip-3 .cf-dot{background:var(--violet-bright);box-shadow:0 0 9px #a78bfacc}.riv-welcome .beaver{z-index:9;pointer-events:none;filter:drop-shadow(0 14px 18px #0000008c)drop-shadow(0 3px 5px #0006);width:138px;height:auto;position:absolute;top:-78px;right:-26px;transform:translateZ(60px)}.riv-welcome .form-glass{z-index:2;-webkit-backdrop-filter:blur(24px)saturate(160%);border:1px solid var(--glass-border);border-top-color:var(--glass-border-top);will-change:transform;box-shadow:0 50px 120px #0009, 0 18px 50px #0006, var(--glass-inset), inset 0 0 0 1px #ffffff05;background:linear-gradient(#111520d1,#0b0e16c7);border-radius:24px;padding:34px 34px 28px;position:relative;transform:translateZ(40px)}.riv-welcome .form-glass:before{content:"";background:linear-gradient(90deg,#0000,#fff9 50%,#0000);height:1px;position:absolute;top:0;left:16px;right:16px}.riv-welcome .brandbar{align-items:center;gap:11px;margin-bottom:24px;display:flex}.riv-welcome .brand-chip{border:1px solid var(--glass-border);border-top-color:var(--glass-border-top);width:36px;height:36px;box-shadow:var(--glass-inset), 0 4px 16px #0000004d;background:#ffffff1a;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.riv-welcome .brand-chip img{object-fit:contain;width:21px;height:21px}.riv-welcome .brand-word{letter-spacing:-.02em;font-size:17px;font-weight:600}.riv-welcome .eyebrow{font-family:var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--teal-dim);margin-bottom:11px;font-size:10.5px}.riv-welcome .title{letter-spacing:-.03em;padding-right:54px;font-size:26px;font-weight:600;line-height:1.12}.riv-welcome .title .iris{background:linear-gradient(120deg,#7fe5f4,#a78bfa 52%,#8fdfa0);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.riv-welcome .sub{color:var(--w-text-dim);margin-top:8px;font-size:13.5px;font-weight:300;line-height:1.55}.riv-welcome .btn-google{width:100%;font-family:var(--display);color:var(--w-text);background:var(--glass);border:1px solid var(--glass-border);border-top-color:var(--glass-border-top);cursor:pointer;box-shadow:var(--glass-inset);border-radius:12px;justify-content:center;align-items:center;gap:10px;margin-top:22px;padding:12px;font-size:14px;font-weight:500;transition:all .18s;display:flex}.riv-welcome .btn-google:hover{background:var(--glass-hover);transform:translateY(-1px)}.riv-welcome .btn-google:disabled{opacity:.6;cursor:default;transform:none}.riv-welcome .btn-google svg{width:17px;height:17px}.riv-welcome .divider{color:var(--w-text-muted);font-size:11px;font-family:var(--mono);letter-spacing:.1em;align-items:center;gap:12px;margin:18px 0;display:flex}.riv-welcome .divider:before,.riv-welcome .divider:after{content:"";background:linear-gradient(90deg,#0000,#ffffff24,#0000);flex:1;height:1px}.riv-welcome .field{margin-bottom:13px}.riv-welcome .field label{font-family:var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--w-text-muted);margin-bottom:6px;font-size:10px;display:block}.riv-welcome .field-row{justify-content:space-between;align-items:baseline;display:flex}.riv-welcome .forgot{color:var(--w-text-dim);cursor:pointer;font-size:11px;font-family:var(--display);background:0 0;border:none;text-decoration:none;transition:all .15s}.riv-welcome .forgot:hover{color:var(--teal)}.riv-welcome .input-wrap{position:relative}.riv-welcome .input{width:100%;font-family:var(--display);color:var(--w-text);border:1px solid var(--glass-border);background:#ffffff0b;border-radius:11px;outline:none;padding:12px 14px;font-size:14px;transition:all .18s}.riv-welcome .input.pw{padding-right:44px}.riv-welcome .input::placeholder{color:var(--w-text-muted)}.riv-welcome .input:focus{background:#2fc6df0f;border-color:#2fc6df8c;box-shadow:0 0 0 3px #2fc6df1f}.riv-welcome .eye{cursor:pointer;width:32px;height:32px;color:var(--w-text-muted);background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;transition:all .15s;display:flex;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.riv-welcome .eye:hover{color:var(--w-text-dim);background:#ffffff0f}.riv-welcome .eye svg{width:18px;height:18px}.riv-welcome .err{color:#ff9aa2;min-height:0;margin:4px 0 10px;font-size:12px;line-height:1.4}.riv-welcome .btn-primary{width:100%;font-family:var(--display);color:#04161c;cursor:pointer;background:linear-gradient(#5fe0f2,#2fc6df 55%,#23a8c4);border:1px solid #96ebfa80;border-radius:12px;justify-content:center;align-items:center;gap:8px;margin-top:8px;padding:13px;font-size:14.5px;font-weight:600;text-decoration:none;transition:all .18s;display:flex;box-shadow:0 6px 24px #2fc6df57,inset 0 1px #fff6}.riv-welcome .btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 32px #2fc6df75,inset 0 1px #ffffff80}.riv-welcome .btn-primary:active{transform:translateY(0)}.riv-welcome .btn-primary:disabled{opacity:.7;cursor:default;transform:none}.riv-welcome .footer-line{color:var(--w-text-dim);text-align:center;margin-top:22px;font-size:13px}.riv-welcome .footer-line a{color:var(--teal);font-weight:500;text-decoration:none}.riv-welcome .footer-line a:hover{text-decoration:underline}.riv-welcome .legal{color:var(--w-text-muted);text-align:center;margin-top:12px;font-size:10.5px;line-height:1.5}.riv-welcome .legal a{color:var(--w-text-dim);text-decoration:none}.riv-welcome .legal a:hover{text-decoration:underline}.riv-welcome .signed-wrap{margin-top:22px}.riv-welcome .signed-id{border:1px solid var(--glass-border);border-top-color:var(--glass-border-top);box-shadow:var(--glass-inset);background:#ffffff0b;border-radius:13px;align-items:center;gap:12px;margin-bottom:16px;padding:13px 14px;display:flex}.riv-welcome .avatar{color:#04161c;text-transform:uppercase;background:linear-gradient(135deg,#7fe5f4,#a78bfa);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;font-size:16px;font-weight:600;display:flex;box-shadow:0 4px 16px #2fc6df4d}.riv-welcome .signed-meta{min-width:0}.riv-welcome .signed-meta .lbl{font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--w-text-muted);font-size:9.5px}.riv-welcome .signed-meta .who{color:var(--w-text);text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:14px;font-weight:500;overflow:hidden}.riv-welcome .signout{text-align:center;width:100%;color:var(--w-text-dim);cursor:pointer;font-size:12.5px;font-family:var(--display);background:0 0;border:none;margin-top:14px;transition:all .15s;display:block}.riv-welcome .signout:hover{color:var(--w-text)}.riv-welcome .seamwrap{z-index:5;pointer-events:none;width:2px;position:absolute;top:0;bottom:0;left:clamp(440px,45%,620px)}.riv-welcome .seam{opacity:.7;background:linear-gradient(#0000 0%,#2fc6df80 24%,#8b5cf68c 52%,#69b57880 80%,#0000 100%) 0 0/100% 240%;width:1.5px;animation:9s linear infinite rivFlow;position:absolute;top:0;bottom:0;left:0}@keyframes rivFlow{0%{background-position:0 0}to{background-position:0 240%}}.riv-welcome .seam-glow{filter:blur(22px);background:linear-gradient(90deg,#0000,#2fc6df12 45%,#8b5cf614 55%,#0000);width:100px;position:absolute;top:0;bottom:0;left:-50px}.riv-welcome .spark{background:#bfeefa;border-radius:50%;width:7px;height:7px;animation:7s cubic-bezier(.4,0,.6,1) infinite rivSpark;position:absolute;left:-3px;box-shadow:0 0 10px 3px #7fe5f4b3,0 0 24px 8px #8b5cf659}@keyframes rivSpark{0%{opacity:0;top:-3%}10%{opacity:1}90%{opacity:1}to{opacity:0;top:103%}}.riv-welcome .canvaspane{background:var(--bg-deep);flex:1;position:relative;overflow:hidden}.riv-welcome #riv-dag{z-index:2;width:100%;height:100%;display:block;position:absolute;inset:0}.riv-welcome .canvas-overlay{pointer-events:none;z-index:2;background:radial-gradient(80% 60% at 90%,#8b5cf60f,#0000 60%),radial-gradient(70% 60% at 10%,#2fc6df0f,#0000 60%);position:absolute;inset:0}.riv-welcome .canvas-grid{z-index:0;pointer-events:none;opacity:.5;background-image:radial-gradient(#ffffff0f 1px,#0000 1px);background-size:26px 26px;position:absolute;inset:0}.riv-welcome .canvas-label{z-index:3;font-family:var(--mono);color:var(--w-text-muted);letter-spacing:.06em;align-items:center;gap:8px;font-size:11px;display:flex;position:absolute;top:24px;left:34px}.riv-welcome .canvas-label .ld{background:var(--emerald);border-radius:50%;width:6px;height:6px;animation:2.2s infinite rivBl;box-shadow:0 0 8px #69b578b3}@keyframes rivBl{0%,to{opacity:1}50%{opacity:.45}}.riv-welcome .canvas-label b{color:var(--w-text-dim);font-weight:500}@media (max-width:860px){.riv-welcome .canvaspane,.riv-welcome .seamwrap{display:none}.riv-welcome .formpane{width:100%}.riv-welcome .chip-3{display:none}.riv-welcome .spot{background:radial-gradient(620px circle at var(--mx,50%) var(--my,40%), #2fc6df2e 0%, #8b5cf612 30%, transparent 64%)}}@media (max-width:430px){.riv-welcome .form-glass{padding:30px 24px 26px}.riv-welcome .beaver{width:108px;top:-60px;right:-12px}.riv-welcome .title{padding-right:36px;font-size:23px}.riv-welcome .chip-1{top:-26px;left:-14px}.riv-welcome .chip-2{bottom:-20px;right:-12px}}@media (prefers-reduced-motion:reduce){.riv-welcome .scene,.riv-welcome .seam,.riv-welcome .spark,.riv-welcome .canvas-label .ld{animation:none}}