:root{
  --brand:#4f46e5; --brand-deep:#3730a3; --brand-ink:#1e1b4b;
  --accent:#22d3ee; --create:#10b981;
  --bg:#f7f7fb; --surface:#ffffff; --ink:#14142b; --muted:#5b5b73;
  --border:#e6e6f0; --shadow:0 1px 2px rgba(20,20,43,.06),0 8px 24px rgba(20,20,43,.06);
  --radius:14px; --maxw:1080px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0b0b16; --surface:#14141f; --ink:#ececf5; --muted:#a3a3bd;
  --border:#26263a; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
}}
:root[data-theme=dark]{--bg:#0b0b16;--surface:#14141f;--ink:#ececf5;--muted:#a3a3bd;--border:#26263a}
:root[data-theme=light]{--bg:#f7f7fb;--surface:#fff;--ink:#14142b;--muted:#5b5b73;--border:#e6e6f0}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
/* top bar */
.topbar{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--border)}
.topbar .row{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
.brand .mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));display:inline-block}
/* dual identity chip */
.idchip{display:flex;align-items:stretch;gap:0;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}
.idchip a{display:flex;align-items:center;gap:7px;padding:8px 14px;color:var(--ink);font-size:.86rem;font-weight:600}
.idchip a:hover{text-decoration:none;background:color-mix(in srgb,var(--brand) 10%,transparent)}
.idchip a+a{border-left:1px solid var(--border)}
.idchip svg{width:18px;height:18px}
.idchip .human svg{color:var(--brand)}
.idchip .bot svg{color:var(--accent)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.7rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 9px;border-radius:999px}
.badge.human{background:color-mix(in srgb,var(--brand) 16%,transparent);color:var(--brand-deep)}
.badge.bot{background:color-mix(in srgb,var(--accent) 22%,transparent);color:#0e7490}
.who{display:flex;align-items:center;gap:12px}
.who .handle{font-weight:700}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:650;font-size:.95rem;padding:11px 18px;border-radius:11px;border:1px solid transparent;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff}
.btn.primary:hover{filter:brightness(1.06);text-decoration:none}
.btn.ghost{background:transparent;border-color:var(--border);color:var(--ink)}
.btn.ghost:hover{border-color:var(--brand);text-decoration:none}
.btn.small{padding:7px 13px;font-size:.85rem}
.btn.block{width:100%;justify-content:center}
/* hero */
.hero{padding:76px 0 40px;text-align:center}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,transparent);padding:6px 12px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(2.3rem,6vw,3.6rem);line-height:1.05;letter-spacing:-.02em;margin:.1em 0 .3em;text-wrap:balance}
.hero p.lede{font-size:clamp(1.05rem,2.4vw,1.3rem);color:var(--muted);max-width:640px;margin:0 auto 28px;text-wrap:balance}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
/* value cards */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:36px 0 20px}
@media(max-width:820px){.values{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card .ic{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--brand) 12%,transparent);color:var(--brand);margin-bottom:14px}
.card .ic svg{width:22px;height:22px}
.card h3{margin:.1em 0 .4em;font-size:1.15rem;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:.96rem}
/* accounts section */
.accounts{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:28px 0 60px}
@media(max-width:820px){.accounts{grid-template-columns:1fr}}
.acct{border:1px solid var(--border);border-radius:var(--radius);padding:26px;background:var(--surface)}
.acct h3{display:flex;align-items:center;gap:10px;margin:0 0 8px}
.acct ul{margin:12px 0 18px;padding-left:18px;color:var(--muted)}
.acct ul li{margin:4px 0}
/* auth pages */
.authwrap{max-width:420px;margin:56px auto;padding:0 20px}
.authcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.authcard h1{font-size:1.5rem;margin:0 0 4px}
.authcard .sub{color:var(--muted);margin:0 0 22px;font-size:.95rem}
.field{margin-bottom:14px}
.field label{display:block;font-size:.82rem;font-weight:650;margin-bottom:6px;color:var(--ink)}
.field input{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--ink);font-size:.98rem}
.field input:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:.8rem;margin:20px 0}
.divider::before,.divider::after{content:"";height:1px;flex:1;background:var(--border)}
.oauth-row{display:flex;flex-direction:column;gap:10px}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.center{text-align:center}
/* flash */
.flash{max-width:var(--maxw);margin:14px auto 0;padding:0 20px}
.flash .msg{padding:11px 15px;border-radius:11px;font-size:.92rem;border:1px solid var(--border)}
.flash .notice{background:color-mix(in srgb,var(--brand) 10%,transparent);border-color:color-mix(in srgb,var(--brand) 30%,transparent)}
.flash .alert{background:color-mix(in srgb,#ef4444 12%,transparent);border-color:color-mix(in srgb,#ef4444 34%,transparent)}
footer.site{border-top:1px solid var(--border);padding:26px 0;color:var(--muted);font-size:.86rem}
/* legal pages */
.legal-wrap{max-width:760px;margin:40px auto}
.legal h1{font-size:2rem;letter-spacing:-.02em;margin:.2em 0 .1em}
.legal h2{font-size:1.25rem;margin:1.7em 0 .5em;letter-spacing:-.01em}
.legal h3{font-size:1.05rem;margin:1.2em 0 .4em}
.legal p,.legal li{opacity:.92}
.legal p{margin:.7em 0}
.legal ul,.legal ol{padding-left:22px}
.legal table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.9rem;display:block;overflow-x:auto}
.legal th,.legal td{border:1px solid var(--border);padding:8px 10px;text-align:left;vertical-align:top}
.legal th{background:color-mix(in srgb,var(--brand) 8%,transparent)}
.legal hr{border:none;border-top:1px solid var(--border);margin:1.6em 0}
/* journey status bar */
.statusbar{border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--surface) 55%,transparent)}
.statusbar .row{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.statusstep{display:flex;flex-direction:column;gap:3px;padding:11px 16px;border-left:1px solid var(--border);opacity:.42;text-decoration:none;color:var(--ink)}
.statusstep:first-child{border-left:none}
.statusstep.ready{opacity:1}
a.statusstep:hover{background:color-mix(in srgb,var(--brand) 8%,transparent);text-decoration:none;opacity:.7}
a.statusstep.ready:hover{opacity:1}
.statusstep .lbl{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem;letter-spacing:-.01em}
.statusstep .lbl .n{width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:700;background:color-mix(in srgb,var(--muted) 22%,transparent);color:var(--muted)}
.statusstep.ready .lbl .n{background:var(--brand);color:#fff}
.statusstep .note{font-size:.78rem;color:var(--muted)}
.idchip .dim{opacity:.4}
.idchip .dim:hover{opacity:.7}
@media(max-width:560px){.statusstep{padding:9px 10px}.statusstep .lbl{font-size:.82rem}.statusstep .note{font-size:.72rem}}
/* three-icon top line + create + brand lockup + creation page */
.header-right{display:flex;align-items:center;gap:12px}
.idchip .create svg{color:var(--create)}
.brand-lockup{display:flex;align-items:center;gap:14px;padding:26px 0;justify-content:center}
.bl-mm{width:44px;height:44px;border-radius:11px;box-shadow:var(--shadow)}
.bl-plus{color:var(--muted);font-size:1.4rem;font-weight:300}
.bl-mode{width:44px;height:44px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);background:var(--surface)}
.bl-mode svg{width:26px;height:26px}
.bl-human svg{color:var(--brand)}
.bl-bot svg{color:var(--accent)}
.bl-create svg{color:var(--create)}
.bl-label{font-weight:700;font-size:1.05rem;letter-spacing:-.01em}
.creation-blank{min-height:56vh;display:flex;align-items:center;justify-content:center;text-align:center}
.creation-center{display:flex;flex-direction:column;align-items:center;gap:18px}
.create-big{width:96px;height:96px;border-radius:24px;display:inline-flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--create) 14%,transparent);color:var(--create)}
.create-big svg{width:52px;height:52px}
.creation-center h1{font-size:2.2rem;margin:0;letter-spacing:-.02em}
/* account-card icon links (Human/Bot) */
.acct .human,.acct .bot{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--border);border-radius:11px;padding:9px 16px;font-weight:650;color:var(--ink);text-decoration:none}
.acct .human:hover,.acct .bot:hover{border-color:var(--brand);text-decoration:none}
.acct .human svg,.acct .bot svg{width:20px;height:20px}
.acct a.human svg{color:var(--brand)}
.acct a.bot svg{color:var(--accent)}
.acct a.dim{opacity:.5}
/* locked / disabled gating */
.disabled{pointer-events:none;cursor:not-allowed;user-select:none}
.idchip .dim{opacity:.4}
.statusstep.disabled{opacity:.42;cursor:not-allowed}
.acct.locked{opacity:.55}
.acct.locked .bot{pointer-events:none}
/* LLM gallery */
.gallery-wrap{max-width:760px;margin:0 auto;padding:10px 20px 50px}
.llm-gallery{display:flex;flex-direction:column;gap:22px;margin-top:16px}
.llm-section > h3{display:flex;align-items:baseline;gap:8px;margin:0 0 10px;font-size:1.05rem;letter-spacing:-.01em}
.llm-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:560px){.llm-grid{grid-template-columns:1fr}}
.llm-card{display:flex;flex-direction:column;gap:3px;border:1px solid var(--border);border-radius:12px;padding:12px 40px 12px 14px;cursor:pointer;position:relative;background:var(--surface)}
.llm-card:hover{border-color:var(--brand)}
.llm-card .llm-radio{position:absolute;top:13px;right:13px}
.llm-card:has(.llm-radio:checked){border-color:var(--brand);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 28%,transparent)}
.llm-card .llm-name{font-weight:650}
.llm-card.available{border-color:color-mix(in srgb,var(--create) 50%,var(--border))}
.llm-card.available .llm-status{color:var(--create);font-weight:600}
.llm-card.unavailable{opacity:.5}
.llm-card.unavailable .llm-radio{pointer-events:none}
.llm-card .llm-status{font-size:.74rem}
/* Connect an AI (/ai) decision tree */
.ai-connect{max-width:860px}
.ai-connect .lede{color:var(--muted);margin:0 0 10px;font-size:1.05rem;text-wrap:balance}
.ai-signin-links{margin:0 0 22px}
.ai-step{margin:28px 0}
.ai-step h2{font-size:1.25rem;letter-spacing:-.015em;margin:0 0 8px}
.ai-step.is-hidden,[hidden].ai-step{display:none !important}
.decision-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
@media(max-width:640px){.decision-grid{grid-template-columns:1fr}}
.decision-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;text-align:left;padding:20px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);cursor:pointer;color:var(--ink);font:inherit}
.decision-card:hover{border-color:var(--brand)}
.decision-card.is-selected{border-color:var(--brand);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 28%,transparent)}
.decision-title{font-weight:700;font-size:1.08rem;letter-spacing:-.01em}
.decision-desc{color:var(--muted);font-size:.94rem}
.decision-badge{display:inline-flex;font-size:.68rem;font-weight:750;letter-spacing:.04em;text-transform:uppercase;padding:4px 9px;border-radius:999px}
.decision-badge.local{background:color-mix(in srgb,var(--create) 18%,transparent);color:#047857}
.decision-badge.remote{background:color-mix(in srgb,#f59e0b 18%,transparent);color:#b45309}
.decision-badge.session{background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand-deep)}
.decision-badge.vault{background:color-mix(in srgb,#ef4444 12%,transparent);color:#b91c1c}
.trust-table-wrap{overflow-x:auto;margin:14px 0;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.trust-table{width:100%;border-collapse:collapse;font-size:.86rem;min-width:640px}
.trust-table th,.trust-table td{border-bottom:1px solid var(--border);padding:10px 12px;text-align:left;vertical-align:top}
.trust-table thead th{background:color-mix(in srgb,var(--brand) 8%,transparent);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
.trust-table tbody th{font-weight:700;white-space:nowrap}
.trust-table tr:last-child th,.trust-table tr:last-child td{border-bottom:none}
.neutrality{margin:10px 0 0}
.provider-card{padding:12px 14px;gap:6px}
.provider-card .llm-card-inner{display:flex;flex-direction:column;gap:3px;position:relative;padding-right:28px}
.provider-card .llm-radio{position:absolute;top:0;right:0}
.llm-trust-line{color:var(--muted);margin-top:4px;font-weight:500}
.trust-accordion{margin-top:6px;border-top:1px dashed var(--border);padding-top:6px}
.trust-accordion summary{cursor:pointer;font-size:.82rem;font-weight:650;color:var(--brand)}
.trust-accordion p{margin:6px 0 0}
.vault-btn{margin-top:8px;align-self:flex-start}
.connected-list{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.connected-card{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 18px}
.ai-sponsor-fields{margin-top:20px;max-width:480px}
.ai-sponsor-fields.is-hidden,[hidden].ai-sponsor-fields{display:none !important}
.ai-explainer .explainer-block{margin:16px 0;padding:16px 18px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.ai-explainer .explainer-block h3{margin:0 0 8px;font-size:1.02rem}
.ai-explainer .explainer-block p{margin:0 0 8px}
.ai-explainer .explainer-block p:last-child{margin-bottom:0}
.ai-modal{border:none;border-radius:var(--radius);padding:0;max-width:min(480px,94vw);box-shadow:var(--shadow);background:transparent}
.ai-modal::backdrop{background:rgba(15,15,30,.45)}
.ai-modal-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:0}
.ai-modal-card h2{margin:0 0 10px;font-size:1.2rem}
.ai-modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}

/* SAFE-FIRST /ai trust ladder */
.ai-hero{margin:0 0 18px;padding:18px 18px 16px;border:1px solid var(--border);border-radius:14px;background:linear-gradient(180deg,color-mix(in srgb,var(--brand) 8%,transparent),var(--surface))}
.ai-hero-kicker{margin:0 0 4px;font-size:.78rem;font-weight:750;letter-spacing:.06em;text-transform:uppercase;color:var(--brand)}
.promise-banner{margin:12px 0 0;padding:12px 14px;border-left:3px solid var(--create,#10b981);background:color-mix(in srgb,var(--create,#10b981) 10%,transparent);border-radius:0 10px 10px 0;font-size:.92rem}
.local-pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0 18px}
@media(max-width:720px){.local-pillars{grid-template-columns:1fr}}
.pillar-card{padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}
.pillar-card h3{margin:8px 0 6px;font-size:1.02rem}
.gallery-subhead{font-size:1.05rem;margin:18px 0 6px}
.ai-gallery-block.is-hidden,[hidden].ai-gallery-block{display:none !important}
.advanced-panel{margin:12px 0;border:1px solid var(--border);border-radius:12px;background:var(--surface);padding:0 14px}
.advanced-panel > summary{cursor:pointer;list-style:none;padding:14px 4px;display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.advanced-panel > summary::-webkit-details-marker{display:none}
.advanced-title{font-weight:700;font-size:1.05rem}
.advanced-body{padding:0 4px 16px;border-top:1px dashed var(--border)}
.advanced-body h3{font-size:.95rem;margin:14px 0 6px}
.advanced-body p{margin:0 0 8px}
.risk-list{margin:6px 0 12px 1.1em;padding:0;color:var(--muted);font-size:.9rem}
.never-banner{margin:16px 0 0;padding:12px 14px;border:1px solid color-mix(in srgb,#ef4444 35%,var(--border));border-radius:10px;background:color-mix(in srgb,#ef4444 8%,transparent);font-size:.92rem}
.never-row{background:color-mix(in srgb,#ef4444 6%,transparent)}
.chrome-vs-profile{margin:12px 0;padding:12px 14px}
.chrome-vs-profile h4{margin:0 0 6px}
.term-link{appearance:none;border:0;background:none;padding:0;margin:0;font:inherit;color:var(--brand);text-decoration:underline;text-decoration-style:dotted;cursor:pointer}
.term-link:hover{color:var(--brand-deep,#3730a3)}
.vault-soon{opacity:.95}
.glossary-body p{margin:0 0 8px}
.btn.small{font-size:.86rem;padding:6px 12px}