/* Shared page layouts. All colours follow the site's Day / Night tokens. */
.secondary-page{max-width:1160px;margin:0 auto;padding:clamp(40px,6vw,80px) 32px 88px}
.secondary-page h1,.secondary-page h2,.secondary-page h3,.secondary-account h1,.secondary-account h2,.secondary-card h1,.secondary-card h2{font-family:inherit;font-weight:600;color:var(--fg)}
.secondary-page h1{font-size:clamp(36px,4.5vw,54px);line-height:1.08;letter-spacing:-.045em;margin:0 0 16px}
.secondary-page h2{font-size:26px;line-height:1.2;letter-spacing:-.025em;margin:0 0 18px}
.secondary-page h3{font-size:16px;line-height:1.4;letter-spacing:-.01em;margin:24px 0 10px}
.secondary-page .eyebrow,.secondary-account .eyebrow,.secondary-card .eyebrow{color:var(--muted);letter-spacing:.12em;font-size:10px;margin:0 0 18px}
.page-heading{margin-bottom:42px}
.page-description{font-size:16px;line-height:1.65;color:var(--muted);margin:0;max-width:540px}
.secondary-page .button,.secondary-account .button,.secondary-card .button{min-height:44px;gap:12px}
.secondary-page .button-secondary,.secondary-account .button-secondary,.secondary-card .button-secondary{background:var(--surface);color:var(--fg);border:1px solid var(--line);box-shadow:none}
.secondary-page .button-secondary:hover,.secondary-account .button-secondary:hover,.secondary-card .button-secondary:hover{background:var(--surface-strong)}
.secondary-page .quiet-link,.secondary-account .quiet-link{font-size:13px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;min-height:44px;gap:18px}
.secondary-page .quiet-link:hover,.secondary-account .quiet-link:hover{text-decoration:underline}
.page-visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Experiments */
.dashboard-heading{display:flex;align-items:center;justify-content:space-between;gap:28px}
.dashboard-heading>.button{flex-shrink:0}
.dashboard-heading h1{font-size:clamp(36px,4.5vw,54px)}
.project-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0 0;border-top:1px solid var(--line)}
.project-toolbar p{margin:0;font-size:13px}
.import-action{position:relative;cursor:pointer;flex-shrink:0}
.import-action:focus-within{outline:2px solid var(--accent);outline-offset:4px}
.import-help{font-size:11px;color:var(--muted);margin:10px 0 0;text-align:right}
.secondary-page [data-project-status]{margin:0}
.secondary-page [data-project-status]:not(:empty){margin-top:22px;padding:14px 18px;background:var(--surface-strong);border:1px solid var(--line);border-radius:12px;font-size:13px}
.secondary-page .project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:30px}
.secondary-page .project-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);min-width:0;display:flex;flex-direction:column;align-items:flex-start;overflow-wrap:anywhere}
.secondary-page .project-card h2{font-size:24px;line-height:1.25;margin:0 0 10px}
.secondary-page .project-card .eyebrow{margin-bottom:22px}
.secondary-page .project-card>.muted{font-size:11px;margin:0 0 24px}
.secondary-page .project-card>.button{margin-top:auto}
.secondary-page .project-actions{display:flex;gap:5px 16px;border-top:1px solid var(--line);width:100%;padding-top:14px;margin-top:22px}
.secondary-page .project-actions a,.secondary-page .project-actions button{display:inline-flex;align-items:center;min-height:36px;font:inherit;font-size:11px;color:var(--muted);background:none;border:0;padding:0;text-decoration:none}
.secondary-page .project-actions a:hover,.secondary-page .project-actions button:hover{color:var(--fg);text-decoration:underline}
.secondary-page .empty-state{grid-column:1/-1;text-align:center;display:flex;flex-direction:column;align-items:center;border:1px solid var(--line);background:var(--surface);border-radius:22px;padding:48px 24px 52px}
.empty-circuit{width:240px;height:160px;max-width:100%;object-fit:cover;border-radius:16px;margin:0 0 26px}
.secondary-page .empty-state h2{font-size:25px;margin:0 0 10px}
.secondary-page .empty-state p{max-width:360px;font-size:14px;line-height:1.7;color:var(--muted);margin:0 0 12px}
.secondary-page dialog{max-width:440px;width:calc(100% - 32px);background:var(--surface-strong);color:var(--fg);border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow)}
.secondary-page dialog::backdrop{background:rgb(0 0 0 / .45);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}
.secondary-page dialog h2{font-size:25px}
.secondary-page dialog p{font-size:14px;color:var(--muted)}
.secondary-page dialog label{font-size:13px;font-weight:500;display:block}
.secondary-page dialog input{width:100%;min-height:46px;background:var(--field);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--fg);margin-top:9px;font:inherit}
.secondary-page dialog .actions{gap:12px;margin-top:24px}

/* Accounts and feedback */
.secondary-account{max-width:1080px;margin:auto;padding:72px 32px 88px;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.secondary-account .account-intro{padding-top:28px;overflow-wrap:anywhere}
.secondary-account .account-intro h2{font-size:clamp(32px,3.5vw,44px);line-height:1.13;letter-spacing:-.04em;margin:0 0 22px}
.secondary-account .account-intro>p:not(.eyebrow){font-size:15px;line-height:1.75;color:var(--muted);max-width:350px}
.account-benefits{list-style:none;margin:28px 0;padding:0;max-width:350px}
.account-benefits li{font-size:13px;padding:13px 0;border-top:1px solid var(--line)}
.secondary-account .account-card,.secondary-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--fg)}
.secondary-account .account-card h1,.secondary-card h1{font-size:32px;line-height:1.15;letter-spacing:-.035em;margin:0 0 22px}
.secondary-account .form-intro{font-size:13px;line-height:1.7;color:var(--muted);margin:-8px 0 28px}
.secondary-account .form-field{margin-bottom:22px}
.secondary-account label,.secondary-card label{font-size:13px;line-height:1.55;font-weight:500;display:block;margin-bottom:8px}
.secondary-account input:not([type=checkbox]):not([type=hidden]),.secondary-card input:not([type=checkbox]):not([type=hidden]){display:block;width:100%;min-height:46px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--field);color:var(--fg);font:inherit;font-size:14px}
.secondary-card input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);vertical-align:middle}
.secondary-account .field-help,.secondary-card .field-help,.secondary-card .helptext{font-size:11px;line-height:1.7;color:var(--muted);margin:8px 0}
.secondary-account .field-help ul,.secondary-card .helptext ul{padding-left:18px;margin:8px 0}
.secondary-account .field-error,.secondary-account .form-alert,.secondary-card .form-alert,.secondary-card .errorlist{color:var(--fg);font-size:12px}
.secondary-account .field-error,.secondary-card .errorlist{font-weight:600}
.secondary-account .form-alert,.secondary-card .form-alert,.secondary-card .form-notice{padding:14px 16px;border:1px solid var(--line);border-left:3px solid var(--fg);border-radius:10px;background:var(--surface-strong);font-size:13px;line-height:1.7;margin:18px 0}
.secondary-card .form-notice p{margin:0 0 8px}
.secondary-card .form-notice p:last-child{margin-bottom:0}
.secondary-account .account-card .button{width:100%}
.secondary-account .account-links{display:flex;justify-content:space-between;gap:12px 20px;flex-wrap:wrap;margin-top:24px;font-size:12px}
.secondary-account .account-links a{display:inline-flex;align-items:center;min-height:32px}
.secondary-account [data-busy-status],.secondary-card [data-busy-status]{display:block;margin-top:10px;font-size:12px;color:var(--muted)}
.secondary-card.account-settings{max-width:620px;margin:58px auto 80px;padding:38px;overflow-wrap:anywhere}
.secondary-card .card-heading{margin-bottom:28px}
.secondary-card .card-heading p:not(.eyebrow){font-size:13px;color:var(--muted);margin:0}
.secondary-card .settings-section{border-top:1px solid var(--line);padding-top:26px;margin-top:28px}
.secondary-card h2{font-size:20px;letter-spacing:-.02em;margin:0 0 16px}
.secondary-card form>div{margin:18px 0}
.secondary-card .settings-section>p{font-size:13px;color:var(--muted)}
.secondary-card .account-data-actions{display:flex;gap:12px 24px;flex-wrap:wrap;font-size:13px}
.secondary-card .account-data-actions a{min-height:44px;display:inline-flex;align-items:center}
.secondary-card .sign-out-form{margin-top:28px;border-top:1px solid var(--line);padding-top:24px}
.secondary-card .keep-account{display:flex;align-items:center;justify-content:center;min-height:44px;font-size:13px;margin-top:12px}
.secondary-card.simple-card{max-width:600px;margin:70px auto 90px;padding:42px}
.secondary-card.simple-card h1{font-size:36px}
.secondary-card.simple-card>p:not(.eyebrow){font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 28px}
.secondary-card .actions{gap:18px;font-size:13px}

/* Guide: persistent contents on wide screens, a compact index on phones. */
.guide.secondary-page{max-width:1160px}
.guide-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:60px;align-items:start}
.secondary-page .guide-index{display:flex;flex-direction:column;flex-wrap:nowrap;align-items:flex-start;gap:5px;position:sticky;top:116px;border:0;padding:6px 0}
.guide-index-label{font-size:10px;letter-spacing:.1em;font-weight:600;color:var(--muted);margin-bottom:14px}
.secondary-page .guide-index>a{font-size:12px;line-height:1.5;color:var(--muted);min-height:40px;display:inline-flex;align-items:center;text-decoration:none;background:none;border-radius:0;padding:0}
.secondary-page .guide-index>a:hover{color:var(--fg);text-decoration:underline}
.secondary-page .guide-index>.guide-open-lab{color:var(--fg);border-top:1px solid var(--line);width:100%;padding-top:18px;margin-top:18px;font-weight:600}
.secondary-page .guide-content{min-width:0}
.secondary-page .guide-content>section{margin:0 0 46px;padding:0 0 40px;border-bottom:1px solid var(--line);scroll-margin-top:116px}
.secondary-page .guide-content p,.secondary-page .guide-content li{font-size:14px;line-height:1.8;color:var(--muted)}
.secondary-page .guide-content strong{color:var(--fg);font-weight:600}
.secondary-page .guide-content .section-number{font-size:10px;letter-spacing:.1em;font-weight:600;color:var(--muted);margin:0 0 14px}
.guide-two-column{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.guide-two-column h3{margin-top:8px}
.secondary-page .guide-content ul{padding-left:18px;margin:10px 0}
.secondary-page .guide-content li{margin:10px 0}
.secondary-page .guide-note{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:26px 0}
.secondary-page .guide-note h3,.secondary-page .guide-note h2{margin:0 0 10px}
.secondary-page .guide-note p{font-size:13px;line-height:1.8;margin:0 0 12px}
.secondary-page .guide-note p:last-child{margin-bottom:0}
.secondary-page .safety-note{border-left:3px solid var(--fg)}
.secondary-page .guide-content dl{display:grid;grid-template-columns:minmax(100px,1fr) 2fr;gap:0;border-top:1px solid var(--line);font-size:13px;margin:18px 0}
.secondary-page .guide-content dt,.secondary-page .guide-content dd{margin:0;padding:13px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.secondary-page .guide-content dt{font-weight:600;padding-right:20px}
.secondary-page .guide-content dd{color:var(--muted)}
.secondary-page .guide-content .control-profile{font-size:12px;color:var(--fg);font-weight:500;margin-bottom:5px}
.secondary-page .guide-steps{padding-left:24px;margin:20px 0}
.secondary-page .guide-steps li{padding-left:8px;margin:16px 0}
.secondary-page .guide-steps li::marker{color:var(--fg);font-size:12px;font-weight:600}
.measurement-list{border-top:1px solid var(--line);margin:24px 0}
.measurement-list>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:24px;border-bottom:1px solid var(--line);padding:18px 0}
.secondary-page .measurement-list h3{font-size:14px;margin:2px 0}
.secondary-page .measurement-list p{margin:0}
.secondary-page .guide-bottom-actions{gap:24px;font-size:13px}
.guide.secondary-page.legal-page{max-width:800px}
.secondary-page.legal-page>section{margin:34px 0;scroll-margin-top:116px}
.secondary-page.legal-page h2{font-size:21px}
.secondary-page.legal-page section p{font-size:14px;line-height:1.85;color:var(--muted)}
.secondary-page.legal-page .safety-note strong{color:var(--fg)}

@media(max-width:1000px){.secondary-page .project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.secondary-account{gap:40px}.guide-layout{grid-template-columns:175px minmax(0,1fr);gap:34px}.guide-two-column{grid-template-columns:1fr;gap:8px}}
@media(max-width:700px){.secondary-account .account-card{order:-1}.secondary-page{padding:38px 22px 60px}.page-heading{margin-bottom:30px}.dashboard-heading{align-items:flex-start;flex-direction:column;gap:22px}.dashboard-heading>.button{width:100%}.secondary-page .project-grid{grid-template-columns:1fr;gap:16px}.project-toolbar{gap:16px}.project-toolbar p{font-size:12px}.import-help{text-align:left;line-height:1.6;max-width:300px}.secondary-page .project-card{padding:24px}.secondary-page .empty-state{padding:35px 22px}.secondary-account{grid-template-columns:1fr;gap:32px;padding:38px 22px 60px}.secondary-account .account-intro{padding-top:0}.secondary-account .account-intro h2{font-size:32px}.secondary-account .account-intro>p:not(.eyebrow){font-size:14px}.account-benefits{display:none}.secondary-account .account-card,.secondary-card{padding:26px;border-radius:18px}.secondary-card.account-settings,.secondary-card.simple-card{margin:38px 22px 60px;padding:26px}.secondary-card.simple-card h1{font-size:30px}.secondary-card.account-settings h1{font-size:30px}.guide-layout{grid-template-columns:1fr;gap:32px}.secondary-page .guide-index{position:static;display:grid;grid-template-columns:1fr 1fr;gap:2px 20px;border-block:1px solid var(--line);padding:20px 0}.guide-index-label{grid-column:1/-1;margin-bottom:5px}.secondary-page .guide-index>.guide-open-lab{border:0;margin:0;padding:0}.secondary-page .guide-content>section{margin-bottom:30px;padding-bottom:30px;scroll-margin-top:150px}.secondary-page .guide-note{padding:20px}.measurement-list>div{grid-template-columns:1fr;gap:8px}.secondary-page .guide-content dl{display:grid;grid-template-columns:100px minmax(0,1fr);font-size:12px}.secondary-page.legal-page>section{margin:28px 0}.secondary-page.legal-page .guide-note{margin-inline:0}}
@media(prefers-reduced-transparency:reduce){.secondary-page .project-card,.secondary-account .account-card,.secondary-card{background:var(--surface-strong);backdrop-filter:none;-webkit-backdrop-filter:none}}