:root{--ink:#111936;--muted:#7a8398;--primary:#123b69;--blue:#3157d5;--line:#e6eaf2;--accent:#ff6f61}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--ink);background:#fff}button,a,input{font:inherit}.login-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(420px,.9fr)}.login-visual{position:relative;overflow:hidden;display:grid;align-content:center;justify-items:center;min-height:100vh;padding:44px;background:linear-gradient(140deg,#fff9ed 0%,#fff 45%,#eaffff 100%)}.login-visual:before,.login-visual:after{content:"";position:absolute;width:150px;height:150px;border-radius:22px;background:rgba(255,255,255,.55);box-shadow:0 24px 90px rgba(49,87,213,.1);transform:rotate(30deg)}.login-visual:before{top:40px;left:44%}.login-visual:after{bottom:40px;left:6%}.brand{position:absolute;top:34px;left:42px;display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:950;font-size:24px}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:#fff;color:var(--blue);box-shadow:0 12px 28px rgba(17,25,54,.12);font-size:13px}.network{position:absolute;inset:0}.node{position:absolute;width:72px;height:72px;display:grid;place-items:center;border-radius:999px;background:#fff;box-shadow:0 22px 55px rgba(17,25,54,.13);font-weight:950;font-size:30px}.node-call{top:31%;left:62%;color:#ffad1f}.node-zalo{top:42%;left:77%;color:#0068ff}.node-form{top:37%;left:31%;color:#a855f7}.node-ads{bottom:26%;left:32%;color:#35a853}.node-chat{top:39%;left:13%;color:#1877f2}.node-mail{bottom:21%;left:10%;width:46px;height:46px;color:#0ea5e9;font-size:20px}.line{position:absolute;height:2px;background:linear-gradient(90deg,rgba(255,111,97,.08),rgba(255,111,97,.34),rgba(255,111,97,.08));transform-origin:left center}.l1{width:48%;top:46%;left:14%;transform:rotate(33deg)}.l2{width:44%;top:48%;left:31%;transform:rotate(2deg)}.l3{width:36%;bottom:30%;left:13%;transform:rotate(-10deg)}.l4{width:38%;top:41%;left:39%;transform:rotate(44deg)}.visual-copy{position:relative;text-align:center;margin-top:120px}.visual-copy h1{margin:0;font-size:64px;letter-spacing:0;font-weight:950}.visual-copy p{margin:14px 0 0;color:var(--accent);font-weight:850;font-size:22px}.login-panel{position:relative;display:grid;place-items:center;min-height:100vh;padding:40px 54px;background:#fff}.panel-inner{width:min(100%,520px);display:grid;gap:14px}.panel-inner h2{margin:0;text-align:center;font-size:32px;line-height:1.1}.panel-inner>p{text-align:center;color:var(--muted);margin:0 0 24px}.signin-options,.login-form{display:grid;gap:12px}.provider-button{min-height:54px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font-weight:850;cursor:pointer}.provider-button span{display:inline-grid;width:26px;text-align:center}.provider-button.primary{background:#123b69;color:#fff;border-color:#123b69}.provider-button.google span{color:#ea4335}.provider-button.email span{color:#26324d}.login-form label{display:grid;gap:7px;color:#26324d;font-weight:800}.login-form input{min-height:48px;border:1px solid var(--line);border-radius:9px;padding:0 13px;outline:none}.login-form input:focus{border-color:#3157d5;box-shadow:0 0 0 3px rgba(49,87,213,.14)}.hidden{display:none!important}.status{min-height:22px;margin:8px 0!important;text-align:center!important;color:var(--muted)!important;font-size:14px}.status.ok{color:#07866f!important}.status.error{color:#dc2626!important}.signup-row{margin-top:24px;display:flex;justify-content:center;align-items:center;gap:10px;color:#26324d}.signup-row button,.text-button{min-height:38px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#17203a;font-weight:850;cursor:pointer}.text-button{border:0;color:var(--blue)}.login-footer{position:absolute;bottom:28px;display:flex;gap:24px;flex-wrap:wrap;justify-content:center;color:var(--accent);font-size:14px;font-weight:850}.login-footer a{color:var(--accent);text-decoration:none}@media(max-width:980px){.login-shell{grid-template-columns:1fr}.login-visual{min-height:420px}.login-panel{min-height:auto;padding:44px 20px 96px}.login-footer{position:static;margin-top:30px}.visual-copy h1{font-size:46px}}@media(max-width:640px){.brand{left:20px;top:20px}.node{transform:scale(.8)}.visual-copy p{font-size:16px}.panel-inner h2{font-size:28px}}