/* Quiet circuit detail at section boundaries; reading surfaces remain clear. */
.circuit-section{position:relative;isolation:isolate;overflow:hidden}
.ambient-circuit{position:absolute;z-index:-1;bottom:-15px;left:0;width:100%;height:180px;pointer-events:none;opacity:.18;transform:translateY(9px);transition:opacity 1s,transform 1s;mask-image:linear-gradient(90deg,#000,transparent 45%,transparent 55%,#000)}
.circuit-awake>.ambient-circuit{opacity:.52;transform:translateY(0)}
.ambient-circuit-top{bottom:auto;top:-18px;height:150px;mask-image:linear-gradient(90deg,#000,transparent 34%,transparent 74%,#000)}
.circuit-awake>.ambient-circuit-top{opacity:.32}
.circuit-track{stroke:#e9be6755}.circuit-port{stroke:#e9be6788;fill:#110e06}
.circuit-signal{stroke:#e9be67;stroke-linecap:square;stroke-dasharray:.22 99.78;stroke-dashoffset:100;filter:drop-shadow(0 0 4px #e9be6799);animation:section-signal var(--signal-duration,14s) linear var(--signal-delay,0s) infinite;animation-play-state:paused}
.circuit-awake .circuit-signal{animation-play-state:running}
.ambient-paused .circuit-signal,.is-paused .circuit-signal{animation-play-state:paused!important}
@keyframes section-signal{to{stroke-dashoffset:0}}

/* Radial sweeps belong to button surfaces. Text links receive a separate bloom. */
.button,.topic-control,.auth-modes button{isolation:isolate;position:relative;overflow:hidden}
.button:before,.topic-control:before,.auth-modes button:before{content:'';position:absolute;inset:-180%;pointer-events:none;z-index:-1;background:conic-gradient(from 0deg,transparent 0deg,transparent 280deg,#ffffff20 306deg,#e9be6715 319deg,transparent 340deg);animation:button-radial 9s linear infinite;animation-delay:-2s}
.button-light:before{background:conic-gradient(from 0deg,transparent 0deg,transparent 280deg,#e9be6733 308deg,#0000000e 322deg,transparent 342deg)}
.topic-control:before{animation-duration:13s;opacity:.7}
.auth-modes button[aria-pressed="false"]:before{display:none}
.button:hover:before,.topic-control:hover:before{opacity:1}
@keyframes button-radial{to{transform:rotate(360deg)}}
.header-tech{border:1px solid #ffffff32;border-radius:6px;padding:7px 11px;background:#ffffff05;gap:10px;transition:border-color .25s,background .25s}
.header-tech:hover{border-color:#e9be6780;background:#e9be670a}
.tech-site .compact-header{left:50%;transform:translateX(-50%)}
.tech-link{position:relative;isolation:isolate}
.tech-link:not(.button):not(.reference-card):after{content:'';position:absolute;height:1px;left:0;right:0;bottom:-1px;pointer-events:none;background:linear-gradient(90deg,transparent 0%,#e9be6700 38%,#e9be67aa 49%,#ffffffbb 51%,#e9be6700 64%,transparent 100%);background-size:250% 100%;animation:tech-bloom 7s ease-in-out infinite}
.tech-link:not(.button):not(.reference-card):before{content:'';position:absolute;inset:-5px -9px;z-index:-1;pointer-events:none;background:linear-gradient(90deg,transparent,#e9be670c,transparent);background-size:250% 100%;animation:tech-bloom 7s ease-in-out infinite}
@keyframes tech-bloom{0%,20%{background-position:180% 0}75%,100%{background-position:-80% 0}}
.reader-signed-in:after{content:'';position:absolute;width:4px;height:4px;background:#e9be67;border-radius:50%;right:1px;top:3px;box-shadow:0 0 7px #e9be6766}
.topic-control[aria-pressed="true"]{color:#fff;background:#e9be6709;border-color:#e9be6760}
.interest-button.topic-control{gap:15px;align-items:center;font-size:10px;padding-bottom:8px}
.topic-control .topic-label{font-size:inherit;line-height:1.8;text-align:left;letter-spacing:0}
.topic-control .topic-mark{font-size:18px;margin-left:auto;flex-shrink:0}
.topic-picks .topic-control{display:flex;gap:20px;align-items:center;min-height:44px}
.interest-button.topic-control[aria-pressed="true"]{padding-inline:10px;border-radius:0 0 4px 4px}
.inline-link.topic-control{border:0;border-bottom:1px solid #fff4;padding:8px 0;margin-top:12px;max-width:100%}
.topic-control:disabled{opacity:.6}.topic-remove{font-size:9px;min-height:32px;border:1px solid #fff3;border-radius:4px;padding:6px 10px;transition:border-color .2s}
.topic-remove:hover{border-color:#e9be6777}
.updates-hero>.inline-link{margin-top:28px;display:inline-flex;font-size:10px}
.updates-section .guide-body+.guide-body{margin-top:20px}
.email-opt-in{margin:24px 0!important;padding:18px 0!important;border-block:1px solid #fff2!important;font-size:10px!important;color:#fff9;line-height:1.9!important}
.delivery-state{font-size:8px!important;line-height:1.9!important;color:#fff6!important;margin-top:15px!important;letter-spacing:0}
.reader-identity{font-size:10px!important;color:#fff!important;word-break:break-word}
.profile-actions{display:flex;align-items:center;justify-content:space-between;margin-top:25px;gap:20px}.text-button{font-size:9px;border:0;border-bottom:1px solid #fff4;padding:5px 0;color:#fff9}
.interest-dialog{scrollbar-color:#fff4 #080808}.interest-dialog form{margin-top:20px}.interest-dialog .button{margin-top:5px}
.auth-modes{display:flex;border-bottom:1px solid #fff3;margin:24px 0 25px;gap:20px}
.auth-modes button{font-size:10px;border:0;border-bottom:1px solid transparent;padding:12px 8px;color:#fff6;min-height:40px}
.auth-modes button[aria-pressed="true"]{border-bottom-color:#e9be67;color:#fff;background:#ffffff03}
:is(#reader-form,#interest-list-form)>label:not(.email-opt-in){display:flex;align-items:center;justify-content:space-between;font-size:10px;margin:18px 0 9px}
:is(#reader-form,#interest-list-form) label small{font-size:8px;color:#fff6}
:is(#reader-form,#interest-list-form)>input{font:inherit;font-size:12px;background:#111;color:#fff;border:1px solid #fff3;border-radius:5px;padding:13px 14px;width:100%;outline:none;min-height:45px}
:is(#reader-form,#interest-list-form)>input:focus{border-color:#e9be6799;box-shadow:0 0 0 3px #e9be670b}
:is(#reader-form,#interest-list-form) input:user-invalid{border-color:#fff8}
.account-note{font-size:8px!important;line-height:1.9!important;color:#fff7!important;margin-top:20px!important}
.auth-submit-label{font-size:11px!important}.reader-context{min-height:42px}
.briefing-preview-section .section-heading{align-items:flex-end;gap:40px}
.briefing-preview-section .section-summary{font-size:11px;line-height:1.9;color:#fff8;max-width:280px}
.briefing-preview{border:1px solid #fff3;border-radius:10px;background:#070707d9;max-width:950px;margin-inline:auto;overflow:hidden}
.briefing-envelope{display:flex;align-items:center;justify-content:space-between;padding:22px 32px;border-bottom:1px solid #fff2;font-size:8px;letter-spacing:1px}
.briefing-envelope>span:last-child{color:#fff7;letter-spacing:0}
.briefing-preview-body{padding:40px 48px}.briefing-preview-body>.eyebrow{font-size:8px;color:#fff6}.briefing-preview-body>h3{font-size:34px;letter-spacing:-1.8px;margin:20px 0 35px}
.briefing-item{padding:26px 0;border-top:1px solid #fff2;animation:briefing-in .5s ease both}
.briefing-item>.eyebrow{font-size:7px;letter-spacing:.8px;color:#fff8;margin:0}
.briefing-item h4{font-size:20px;letter-spacing:-.8px;font-weight:400;margin:14px 0 12px;line-height:1.4}
.briefing-item>p:not(.eyebrow){font-size:11px;line-height:1.9;color:#fff9;max-width:620px}
.briefing-item-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:20px}.briefing-item-actions .inline-link{font-size:9px}
.briefing-preview-note{font-size:8px;line-height:1.9;color:#fff6;padding:20px 32px;border-top:1px solid #fff2}
.briefing-empty{font-size:12px;color:#fff8;line-height:2;max-width:550px;padding-bottom:20px}
@keyframes briefing-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.updates-values .newsletter-connection{margin-top:65px;border-top-color:#fff2;padding-top:45px}.updates-values .guide-hero-actions{margin-top:24px}
.tech-site .interest-button{width:100%;margin-top:24px;min-height:45px}
.guide-links>article{display:block;border:1px solid #fff3;border-radius:9px;padding:35px;background:linear-gradient(130deg,#ffffff05,transparent);transition:border-color .3s}
.guide-links>article:hover{border-color:#fff7}.guide-links>article>a{display:block}
.guide-links>article .interest-button{width:100%;margin-top:30px;min-height:45px}
.product-copy>.interest-button{margin-top:28px;width:100%;min-height:42px}
@media(max-width:760px){.header-controls{gap:11px}.header-tech{padding:6px 8px;font-size:9px}.header-tech span{font-size:12px}.compact-header .brand{font-size:11px;gap:7px}.ambient-circuit{height:150px;opacity:.16}.circuit-awake>.ambient-circuit{opacity:.38}.updates-section .email-opt-in{font-size:9px!important}.briefing-preview-body{padding:28px 23px}.briefing-envelope{padding:18px 20px;font-size:6px;letter-spacing:.4px;gap:15px}.briefing-preview-body>h3{font-size:27px;letter-spacing:-1.5px;margin:18px 0 25px}.briefing-item h4{font-size:18px}.briefing-item>p:not(.eyebrow){font-size:10px}.briefing-item-actions{align-items:flex-start;gap:15px}.briefing-item-actions .inline-link{font-size:8px;line-height:1.9}.topic-remove{font-size:8px;white-space:nowrap}.briefing-preview-note{padding:17px 20px;font-size:7px}.briefing-preview-section .section-summary{margin-top:25px;max-width:none}.auth-dialog{padding:28px 22px}.auth-dialog>.eyebrow{font-size:7px}.auth-dialog h2{font-size:29px}.auth-dialog .reader-context{font-size:10px!important}.auth-modes{margin-top:20px}.interest-dialog .email-opt-in{font-size:9px!important}.profile-actions .inline-link{font-size:9px}.interest-button.topic-control{font-size:9px}}
@media(prefers-reduced-motion:reduce){.ambient-circuit{opacity:.3;transform:none}.circuit-signal{animation:none;stroke-dashoffset:55}.button:before,.topic-control:before,.auth-modes button:before,.tech-link:before,.tech-link:after{animation:none}.briefing-item{animation:none}}
@media(max-width:760px){.briefing-preview-section h2{font-size:25px;letter-spacing:-1.8px;line-height:1.3}.briefing-preview-body>h3{font-size:23px;letter-spacing:-1.5px}.guide-links>article{padding:27px}}