/* OptistreamsAI website system: "Electric Loop" (Sal picked direction 3 on 2026-10-25, review page
   x_branding/tools/review/light-widget.html; the rulebook is x_branding/tools/review/site-rulebook.html).

   The idea: the logo's story becomes the page's signature. Work starts green and turns bronze once automation takes over,
   so the green-to-bronze STREAM marks things that are working or growing: the hero input's edge, card tops, stat ticks,
   result bars, the active nav item and the highlight word. Everything else stays calm: navy text, porcelain or navy ground.

   Colour jobs (one job each):
     green   = forward: every primary button (white label AND white icon), action links, growth numbers, icons in chips/tiles
     bronze  = warmth: section labels (kickers), stars, the end of the stream, the glow
     navy    = text and structure; text greys are tinted navy, never a neutral grey (light: navy 600 #3A4D6A and navy 500 #5A6C88;
               dark: #A1ACBB and #8391A6, the blue-greys that read as light navy on the navy ground)
   Website decision (2026-10-25): the primary button is green. The kit gives bronze the button and green to growth/go-live; on
   the website green owns "move forward" and bronze moves to labels and the stream. The app (tokens/app.css) is unchanged.

   Checked against the kit on 2026-10-25 (Sal: "double check it against the brand kit"): type (display 800 -3%, headings 700 -2%,
   body 17/1.6 navy, labels 700 caps 12%), radius scale 10/16/22/pill, the kit stream and glow verbatim, control borders 3:1
   (#7C8492 light, #6B7E9C dark, from app.css), the app shadows, the smallest-shadow card, white labels never on #10893E (dark
   button #0F7E39, hover #0D7335), proof numbers in bronze 800 or green, logo badge clear space of half its diameter and 16px
   minimum, icons on a 24px grid at 1.75 stroke, no em dashes. Three deliberate website decisions differ from the kit and are
   recorded in doc 140 s1.8: green primary button, secondary text in tinted navy (navy 600/500) instead of slate 600 in light
   mode, and the one highlighted headline word in the green-to-bronze stream instead of plain bronze.

   Dark is the default (the site's clock theme); light follows body.light-mode (the class the site uses) or [data-theme="light"].
   Every class is prefixed os- so it never collides with page or agent CSS. Fonts load separately (tokens/fonts.css on kit
   pages, /files/1/site_2/brand/fonts/figtree.css on the site). Every text pair is checked on site-rulebook.html. */

/* ---------- Part 1: tokens ---------- */
:root, [data-theme="dark"]{
  --os-bg:#071831; --os-surface:#102441; --os-surface-2:#14294A; --os-line:#233651; --os-control:#6B7E9C;
  --os-text:#F1EEE7; --os-text-2:#A1ACBB; --os-text-3:#8391A6;
  --os-action:#0F7E39; --os-action-hover:#0D7335; --os-on-action:#FFFFFF; --os-link:#5CC486; --os-focus:#5CC486;
  --os-growth:#5CC486; --os-proof:#CFA170; --os-kicker:#CFA170; --os-star:#CFA170;
  --os-tile-bg:rgba(92,196,134,.12); --os-tile-ink:#5CC486;
  --os-hl:linear-gradient(90deg,#5CC486,#CFA170);
  --os-header:rgba(7,24,49,.72);
  --os-hover:rgba(241,238,231,.06);
  --os-shadow-1:0 1px 2px rgba(2,12,28,.4); --os-shadow-2:0 8px 24px rgba(2,12,28,.45); --os-shadow-3:0 24px 60px rgba(2,12,28,.6);
  --os-logo-bg:#F1EEE7; --os-logo-ink:#071831;
  color-scheme:dark;
}
body.light-mode, [data-theme="light"]{
  --os-bg:#F9F6F2; --os-surface:#FFFFFF; --os-surface-2:#F1EEE7; --os-line:#E3DED4; --os-control:#7C8492;
  --os-text:#071831; --os-text-2:#3A4D6A; --os-text-3:#5A6C88;
  --os-action:#0B6A30; --os-action-hover:#084A22; --os-on-action:#FFFFFF; --os-link:#0B6A30; --os-focus:#0B6A30;
  --os-growth:#0B6A30; --os-proof:#8C5D32; --os-kicker:#8C5D32; --os-star:#A07143;
  --os-tile-bg:#DDF3E5; --os-tile-ink:#0B6A30;
  --os-hl:linear-gradient(90deg,#0B6A30,#8C5D32);
  --os-header:rgba(249,246,242,.86);
  --os-hover:rgba(7,24,49,.045);
  --os-shadow-1:0 1px 2px rgba(7,24,49,.06); --os-shadow-2:0 8px 24px rgba(7,24,49,.08); --os-shadow-3:0 24px 60px rgba(7,24,49,.16);
  --os-logo-bg:#FFFFFF; --os-logo-ink:#071831;
  color-scheme:light;
}
:root{
  --os-stream:linear-gradient(90deg,#10893E 0%,#10893E 45%,#CFA170 100%);
  --os-stream-v:linear-gradient(180deg,#10893E 0%,#10893E 45%,#CFA170 100%);
  --os-glow:radial-gradient(closest-side,rgba(207,161,112,.20),rgba(16,137,62,.05) 60%,transparent);   /* the kit's glow, verbatim */
  --os-font:'Figtree',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  /* type (px): 12 label, 13 meta, 14 small, 17 body (kit 17/1.6), 18 lead, 22 card title, 28 stat, 40 section title, 52 hero */
  /* radius: the kit scale only (sm 10, md 16, lg 22, pill) */
  --os-r-tile:10px; --os-r-btn:10px; --os-r-field:16px; --os-r-card:16px; --os-r-panel:22px; --os-r-photo:16px; --os-r-pill:999px;
  --os-ease:cubic-bezier(.25,0,.5,1);
}

/* ---------- Part 2: type ---------- */
.os-h1{font-family:var(--os-font);font-size:clamp(36px,4.2vw,52px);font-weight:800;letter-spacing:-.03em;line-height:1.05;color:var(--os-text);text-wrap:balance}
.os-h2{font-family:var(--os-font);font-size:clamp(28px,3.2vw,40px);font-weight:700;letter-spacing:-.02em;line-height:1.1;color:var(--os-text);text-wrap:balance}
.os-h3{font-family:var(--os-font);font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--os-text)}
.os-h4{font-family:var(--os-font);font-size:17px;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--os-text)}
.os-lead{font-size:18px;line-height:1.6;color:var(--os-text-2)}
.os-text{font-size:17px;line-height:1.6;color:var(--os-text)}   /* kit: body is navy (off-white in dark), 17/1.6 */
.os-small{font-size:14px;line-height:1.6;color:var(--os-text-2)}
.os-meta{font-size:13px;line-height:1.5;color:var(--os-text-3)}
.os-hl{background:var(--os-hl);-webkit-background-clip:text;background-clip:text;color:transparent}
.os-kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--os-kicker)}
/* the logo badge keeps clear space of half its diameter: a 16px badge (the kit minimum) gets 8px all round */
.os-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--os-growth);background:var(--os-surface);border:1px solid var(--os-line);border-radius:var(--os-r-pill);padding:8px 14px 8px 8px}
.os-eyebrow img,.os-eyebrow svg{width:16px;height:16px;flex:0 0 auto}
.os-section-head{max-width:680px}
.os-section-head.center{margin:0 auto;text-align:center}
.os-section-head .os-h2{margin-top:10px}
.os-section-head .os-lead{margin-top:14px}

/* ---------- Part 3: actions ---------- */
.os-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border:0;border-radius:var(--os-r-btn);
  background:var(--os-action);color:var(--os-on-action);font:600 15px/1.2 var(--os-font);letter-spacing:.005em;text-decoration:none;cursor:pointer;white-space:nowrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 6px 16px rgba(11,106,48,.22);transition:background-color .2s var(--os-ease),transform .2s var(--os-ease),box-shadow .2s var(--os-ease)}
.os-btn svg{width:17px;height:17px;flex:0 0 auto;color:currentColor;transition:transform .2s var(--os-ease)}
.os-btn:hover{background:var(--os-action-hover);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 10px 22px rgba(11,106,48,.28)}
.os-btn:hover svg:last-child{transform:translateX(2px)}
.os-btn:active{transform:translateY(0) scale(.98)}
.os-btn:focus-visible,.os-btn-2:focus-visible,.os-link:focus-visible,.os-iconbtn:focus-visible,.os-chip:focus-visible,.os-nav a:focus-visible{outline:2px solid var(--os-focus);outline-offset:2px}
.os-btn--sm{min-height:36px;padding:7px 14px;font-size:14px;border-radius:8px}
.os-btn--lg{min-height:52px;padding:14px 24px;font-size:16px}
.os-btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.os-btn-2{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:var(--os-r-btn);
  background:transparent;color:var(--os-text);border:1px solid var(--os-control);font:600 15px/1.2 var(--os-font);text-decoration:none;cursor:pointer;white-space:nowrap;transition:background-color .2s,border-color .2s,transform .2s}
.os-btn-2:hover{background:var(--os-hover);border-color:var(--os-text-2);transform:translateY(-1px)}
.os-btn-2.os-btn--sm{min-height:36px;padding:7px 14px;font-size:14px;border-radius:8px}
.os-link{display:inline-flex;align-items:center;gap:6px;font:700 15px/1.3 var(--os-font);color:var(--os-link);text-decoration:none;background:none;border:0;padding:0;cursor:pointer}
.os-link svg{width:16px;height:16px;transition:transform .2s var(--os-ease)}
.os-link:hover svg{transform:translateX(3px)}
.os-link--inline{display:inline;font-weight:700;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:color-mix(in srgb,var(--os-link) 45%,transparent)}
.os-iconbtn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:var(--os-r-btn);border:0;background:transparent;color:var(--os-text);cursor:pointer;transition:background-color .2s}
.os-iconbtn:hover{background:var(--os-hover)}
.os-iconbtn svg{width:20px;height:20px}

/* ---------- Part 4: inputs ---------- */
.os-composer{position:relative;overflow:hidden;background:var(--os-surface);border:1px solid var(--os-line);border-radius:var(--os-r-field);padding:16px 12px 12px 18px;box-shadow:var(--os-shadow-2);transition:border-color .2s,box-shadow .2s}
.os-composer:after{content:'';position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--os-stream)}
.os-composer:focus-within{border-color:var(--os-action);box-shadow:var(--os-shadow-2),0 0 0 3px color-mix(in srgb,var(--os-action) 18%,transparent)}
.os-composer textarea{display:block;width:100%;min-height:48px;border:0;outline:0;resize:none;background:transparent;font:16px/1.5 var(--os-font);color:var(--os-text)}
.os-composer textarea::placeholder{color:var(--os-text-3)}
.os-composer-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px}
.os-label{display:block;font-size:14px;font-weight:600;color:var(--os-text);margin-bottom:6px}
.os-input{display:block;width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--os-control);border-radius:var(--os-r-btn);background:var(--os-surface);font:15px/1.4 var(--os-font);color:var(--os-text);transition:border-color .2s,box-shadow .2s}
.os-input::placeholder{color:var(--os-text-3)}
.os-input:focus{outline:0;border-color:var(--os-action);box-shadow:0 0 0 3px color-mix(in srgb,var(--os-action) 18%,transparent)}
.os-input.is-error{border-color:#B42318}
body:not(.light-mode) .os-input.is-error{border-color:#F49086}
.os-help{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--os-text-3);margin-top:6px}
.os-help.is-error{color:#B42318}
body:not(.light-mode) .os-help.is-error{color:#F49086}
.os-chip{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:6px 12px;border:1px solid var(--os-line);border-radius:var(--os-r-pill);background:var(--os-surface);font:600 13px/1.2 var(--os-font);color:var(--os-text);cursor:pointer;transition:border-color .2s,transform .2s}
.os-chip svg{width:14px;height:14px;color:var(--os-growth)}
.os-chip:hover{border-color:var(--os-action);transform:translateY(-1px)}

/* ---------- Part 5: numbers ---------- */
.os-stat b{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--os-proof);font-variant-numeric:tabular-nums}
.os-stat span{display:block;font-size:13px;color:var(--os-text-3);margin-top:2px}
.os-stat:before{content:'';display:block;width:36px;height:3px;border-radius:3px;background:var(--os-stream);margin-bottom:10px}
.os-bar{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:baseline}
.os-bar b{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--os-growth)}
.os-bar span{font-size:13px;color:var(--os-text-2)}
.os-bar i{grid-column:1/-1;height:6px;border-radius:6px;background:var(--os-surface-2);overflow:hidden}
.os-bar i:after{content:'';display:block;height:100%;width:var(--w,60%);background:var(--os-stream);border-radius:6px}
.os-num{color:var(--os-growth);font-weight:800}

/* ---------- Part 6: cards and tiles ---------- */
.os-card{position:relative;overflow:hidden;background:var(--os-surface);border:1px solid var(--os-line);border-radius:var(--os-r-card);padding:26px;box-shadow:var(--os-shadow-1)}
.os-card--lift{transition:box-shadow .2s var(--os-ease),transform .2s var(--os-ease)}
.os-card--lift:hover{box-shadow:var(--os-shadow-2);transform:translateY(-2px)}
.os-card--stream:before{content:'';position:absolute;left:0;right:0;top:0;height:4px;background:var(--os-stream)}
.os-card--flat{box-shadow:none}
.os-tile{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:var(--os-r-tile);background:var(--os-tile-bg);color:var(--os-tile-ink);flex:0 0 auto}
.os-tile svg{width:20px;height:20px}
.os-feature{display:flex;gap:16px;align-items:flex-start}
.os-feature .os-h4{margin-bottom:4px}
.os-photo{border-radius:var(--os-r-photo);overflow:hidden;border:1px solid var(--os-line);box-shadow:var(--os-shadow-1);background:var(--os-surface)}
.os-photo img{display:block;width:100%;height:100%;object-fit:cover}
.os-caption{font-size:13px;color:var(--os-text-3);margin-top:10px;text-align:center}
.os-frame{border-radius:var(--os-r-card);overflow:hidden;border:1px solid var(--os-line);box-shadow:var(--os-shadow-3);background:var(--os-surface)}
.os-frame img{display:block;width:100%}

/* ---------- Part 7: logos ---------- */
.os-logo-pill{display:inline-flex;align-items:center;gap:6px;min-height:28px;padding:5px 11px;border-radius:var(--os-r-pill);background:var(--os-logo-bg);color:var(--os-logo-ink);font:600 12.5px/1 var(--os-font);border:1px solid var(--os-line)}
.os-logo-pill svg,.os-logo-pill img{width:15px;height:15px}
.os-logo-tile{display:flex;flex-direction:column;align-items:center;gap:10px;font-size:13px;color:var(--os-text-3)}
.os-logo-tile span{display:grid;place-items:center;width:58px;height:58px;border-radius:14px;background:var(--os-logo-bg);border:1px solid var(--os-line);box-shadow:var(--os-shadow-1)}
.os-logo-tile svg,.os-logo-tile img{width:30px;height:30px}
.os-client-logo{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:6px 12px;border-radius:10px;background:#FFFFFF;border:1px solid var(--os-line)}
.os-client-logo img{height:30px;width:auto}
.os-stars{color:var(--os-star);letter-spacing:2px;font-size:15px}

/* ---------- Part 8: quotes, badges, lists ---------- */
.os-quote p{font-size:clamp(20px,2.2vw,26px);font-weight:500;line-height:1.45;letter-spacing:-.01em;color:var(--os-text);text-wrap:balance}
.os-quote p:before{content:'\201C';font-weight:800;margin-right:.05em;background:var(--os-hl);-webkit-background-clip:text;background-clip:text;color:transparent}
.os-quote p:after{content:'\201D';font-weight:800;margin-left:.05em;background:var(--os-hl);-webkit-background-clip:text;background-clip:text;color:transparent}
.os-quote cite{display:block;font-style:normal;font-size:14px;color:var(--os-text-3);margin-top:12px}
.os-live{display:inline-flex;align-items:center;gap:7px;padding:4px 10px;border-radius:var(--os-r-pill);background:var(--os-tile-bg);color:var(--os-growth);font:700 12px/1.2 var(--os-font);letter-spacing:.04em}
.os-live:before{content:'';width:7px;height:7px;border-radius:50%;background:currentColor;box-shadow:0 0 0 0 currentColor;animation:os-pulse 2s infinite}
@keyframes os-pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,currentColor 50%,transparent)}70%{box-shadow:0 0 0 7px transparent}100%{box-shadow:0 0 0 0 transparent}}
.os-checks{display:grid;gap:12px;list-style:none;padding:0;margin:0}
.os-checks li{display:flex;gap:12px;font-size:15px;line-height:1.55;color:var(--os-text-2)}
.os-checks li b{color:var(--os-text)}
.os-checks svg{flex:0 0 auto;width:18px;height:18px;color:var(--os-growth);margin-top:3px}
.os-divider{position:relative;height:1px;background:var(--os-line);border:0}
.os-divider:before{content:'';position:absolute;left:0;top:-1px;width:64px;height:3px;border-radius:3px;background:var(--os-stream)}

/* ---------- Part 9: page chrome ---------- */
.os-header{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 24px;background:var(--os-header);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--os-line)}
.os-header img{height:30px;width:auto}
.os-nav{display:flex;flex-direction:column;gap:2px}
.os-nav a{position:relative;display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font:600 14px/1.3 var(--os-font);color:var(--os-text-2);text-decoration:none;transition:background-color .2s,color .2s}
.os-nav a:hover{background:var(--os-hover);color:var(--os-text)}
.os-nav a[aria-current="page"]{background:var(--os-surface);color:var(--os-text);box-shadow:var(--os-shadow-1)}
.os-nav a[aria-current="page"]:before{content:'';position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--os-stream-v)}
.os-sticky{display:inline-flex;align-items:center;gap:10px;padding:7px 7px 7px 20px;border-radius:var(--os-r-pill);background:var(--os-header);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--os-line);box-shadow:var(--os-shadow-3)}
.os-sticky .os-meta{font-size:14px;white-space:nowrap}
.os-footer{border-top:1px solid var(--os-line);padding:48px 24px 40px;text-align:center}
.os-footer img{height:28px;width:auto;margin:0 auto 16px;display:block}
.os-footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 20px;font-size:14px;margin-top:16px}
.os-footer nav a{color:var(--os-text-2);text-decoration:none}
.os-footer nav a:hover{color:var(--os-text)}
/* day/night pairs: <img class="os-day"> for light mode, <img class="os-night"> for dark (wins over .os-photo img etc.) */
body:not(.light-mode) .os-day,body.light-mode .os-night{display:none!important}
.os-glow{position:absolute;width:760px;height:760px;border-radius:50%;background:var(--os-glow);pointer-events:none;z-index:0}

/* ---------- Part 10: the site frame (every optistreamsai.ca page shell) ---------- */
body.os-site{margin:0;background:var(--os-bg);color:var(--os-text);font-family:var(--os-font);-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background-color .3s,color .3s;
  /* bridge for any agent still on the old names (core/brand.js era) */
  --color-background:var(--os-bg);--color-foreground:var(--os-text);--color-surface:var(--os-surface);--color-border:var(--os-line);--color-subtle-text:var(--os-text-2);
  --color-brand-gold:var(--os-kicker);--color-brand-teal:var(--os-growth);--color-brand-purple:var(--os-kicker);--color-brand-blue:var(--os-growth);
  --color-header-bg:var(--os-header);--color-border-hover:var(--os-control);--font-family-base:var(--os-font);--font-family-display:var(--os-font)}
body.os-site ::selection{background:color-mix(in srgb,var(--os-growth) 22%,transparent)}
.os-topbar{position:fixed;top:0;left:0;right:0;z-index:50;height:72px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 20px;background:var(--os-header);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--os-line)}
.os-topbar .os-brand{display:flex;align-items:center;gap:6px}
.os-topbar .os-brand a{display:flex;align-items:center}
.os-topbar .os-brand img{height:30px;width:auto;display:block}
.os-topbar-actions{display:flex;align-items:center;gap:4px}
.os-side{position:fixed;top:72px;left:0;bottom:0;width:232px;z-index:40;padding:22px 14px;background:var(--os-bg);border-right:1px solid var(--os-line);transform:translateX(-100%);transition:transform .3s var(--os-ease);overflow-y:auto}
.os-side.active{transform:none}
.os-backdrop{position:fixed;inset:0;z-index:39;background:rgba(7,24,49,.42);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
body:not(.light-mode) .os-backdrop{background:rgba(2,12,28,.72)}
.os-backdrop.active{opacity:1;visibility:visible}
.os-main{position:relative;padding-top:72px;overflow-x:clip;transition:margin-left .3s var(--os-ease)}   /* clip: glows never cause sideways scroll, and sticky still works */
@media (min-width:768px){.os-main.menu-open{margin-left:232px}}
@media (max-width:767px){.os-side{top:0;width:min(300px,84vw);padding:84px 16px 24px;background:var(--os-surface);box-shadow:var(--os-shadow-3);z-index:45}.os-desktop-only{display:none!important}}
@media (min-width:768px){.os-mobile-only{display:none!important}}
.os-section{position:relative;padding:clamp(64px,9vw,112px) 24px}
.os-section--tight{padding-top:clamp(40px,6vw,64px);padding-bottom:clamp(40px,6vw,64px)}
.os-section--glow{overflow:hidden}
.os-wrap{position:relative;z-index:1;max-width:1120px;margin:0 auto}
.os-wrap--narrow{max-width:760px}
.os-panel{position:relative;overflow:hidden;background:var(--os-surface);border:1px solid var(--os-line);border-radius:var(--os-r-panel);padding:clamp(28px,5vw,56px);box-shadow:var(--os-shadow-1)}
.os-panel>*:not(.os-glow){position:relative;z-index:1}
.os-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,64px);align-items:center}
.os-split--top{align-items:start}
.os-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.os-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:900px){.os-split,.os-grid-2,.os-grid-3{grid-template-columns:1fr}}
.os-reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--os-ease),transform .6s var(--os-ease)}
.os-reveal.visible{opacity:1;transform:none}
.os-offer{position:fixed;left:50%;bottom:max(16px,env(safe-area-inset-bottom));z-index:60;opacity:0;transform:translate(-50%,150%);transition:transform .35s var(--os-ease),opacity .35s;pointer-events:none}
.os-offer.visible{opacity:1;transform:translate(-50%,0);pointer-events:auto}
@media (max-width:560px){.os-offer .os-meta{display:none}.os-offer.os-sticky{padding:6px}}
.os-site-footer{border-top:1px solid var(--os-line);padding:56px 24px 44px;text-align:center}
.os-site-footer img{height:28px;width:auto;display:block;margin:0 auto 16px}
.os-site-footer .os-small{max-width:52ch;margin:0 auto}
.os-site-footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 36px;margin-top:20px}
.os-site-footer nav div{display:flex;align-items:baseline;flex-wrap:wrap;justify-content:center;gap:6px 16px}
.os-site-footer nav a{font-size:14px;color:var(--os-text-2);text-decoration:none;transition:color .2s}
.os-site-footer nav a:hover{color:var(--os-text)}
.os-site-footer .os-meta{margin-top:20px}

/* ---------- Part 11: dialogs, status, results, marquee ---------- */
.os-modal-overlay,.os-drawer-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(7,24,49,.42);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
body:not(.light-mode) .os-modal-overlay,body:not(.light-mode) .os-drawer-overlay{background:rgba(2,12,28,.72)}
.os-modal-overlay.active,.os-drawer-overlay.active{opacity:1;visibility:visible}
.os-modal{position:relative;width:100%;max-width:480px;max-height:calc(100vh - 32px);overflow-y:auto;background:var(--os-surface);border:1px solid var(--os-line);border-radius:var(--os-r-panel);
  padding:36px;box-shadow:var(--os-shadow-3);transform:translateY(10px) scale(.98);transition:transform .3s var(--os-ease)}
.os-modal:before{content:'';position:absolute;left:0;right:0;top:0;height:4px;background:var(--os-stream)}
.os-modal-overlay.active .os-modal{transform:none}
.os-modal .os-h3{margin:12px 0 6px}
.os-close{position:absolute;top:14px;right:14px}
.os-drawer-overlay{justify-content:flex-end;align-items:stretch;padding:0}
.os-drawer{position:relative;width:100%;max-width:520px;height:100%;overflow-y:auto;background:var(--os-surface);border-left:1px solid var(--os-line);padding:40px 36px;box-shadow:var(--os-shadow-3);
  transform:translateX(100%);transition:transform .4s var(--os-ease)}
.os-drawer:before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--os-stream-v)}
.os-drawer-overlay.active .os-drawer{transform:none}
.os-field{margin-bottom:16px}
.os-select{display:block;width:100%;min-height:44px;padding:10px 40px 10px 14px;border:1px solid var(--os-control);border-radius:var(--os-r-btn);background:var(--os-surface);color:var(--os-text);font:15px/1.4 var(--os-font);
  appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237C8492' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center}
.os-select:focus,.os-textarea:focus{outline:0;border-color:var(--os-action);box-shadow:0 0 0 3px color-mix(in srgb,var(--os-action) 18%,transparent)}
.os-textarea{display:block;width:100%;min-height:120px;padding:10px 14px;border:1px solid var(--os-control);border-radius:var(--os-r-btn);background:var(--os-surface);color:var(--os-text);font:15px/1.5 var(--os-font);resize:vertical}
.os-btn--block{width:100%}
.os-status{display:none;align-items:flex-start;gap:10px;padding:12px 14px;border-radius:var(--os-r-btn);font:600 14px/1.45 var(--os-font);border:1px solid transparent;margin-top:16px}
.os-status.visible{display:flex}
.os-status svg{flex:0 0 auto;width:18px;height:18px;margin-top:1px}
.os-status[data-status="success"]{background:var(--os-tile-bg);color:var(--os-growth);border-color:color-mix(in srgb,var(--os-growth) 40%,transparent)}
.os-status[data-status="error"]{background:#F8E9E8;color:#B42318;border-color:rgba(180,35,24,.35)}
body:not(.light-mode) .os-status[data-status="error"]{background:rgba(244,144,134,.14);color:#F49086;border-color:rgba(244,144,134,.4)}
.os-spin{animation:os-spin 1s linear infinite}
@keyframes os-spin{to{transform:rotate(360deg)}}
.os-shake{animation:os-shake .3s ease-in-out}
@keyframes os-shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.os-results{display:grid;gap:10px}
.os-result{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.os-result b{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--os-growth);font-variant-numeric:tabular-nums}
.os-result span{font-size:15px;color:var(--os-text-2)}
.os-rows{display:grid;gap:14px}
.os-row{display:grid;grid-template-columns:132px minmax(0,1fr);gap:14px;align-items:baseline}
.os-row .os-kicker{font-size:11px}
.os-row p{font-size:15px;line-height:1.6;color:var(--os-text-2);margin:0}
@media (max-width:560px){.os-row{grid-template-columns:1fr;gap:4px}}
.os-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.os-marquee-track{display:flex;gap:28px;width:max-content;padding:6px 0;animation:os-marquee 60s linear infinite}
.os-marquee:hover .os-marquee-track{animation-play-state:paused}
@keyframes os-marquee{to{transform:translateX(-50%)}}

@media (prefers-reduced-motion:reduce){.os-btn,.os-btn-2,.os-chip,.os-link svg,.os-reveal{transition:none}.os-reveal{opacity:1;transform:none}.os-live:before,.os-marquee-track{animation:none}}