/* ============================================================================
   Ascend design system — tokens + base + components
   The single apply primitive for /apply-ascend-brand. Link this after the four
   Google Fonts, set theme with <html> (default light) or <html data-theme="dark">.
   Token reference: references/design-system.md
   ========================================================================== */

/* ---- LIGHT (canonical) --------------------------------------------------- */
:root{
  /* surfaces */
  --bg:#FFFFFF; --surface:#FFFFFF; --band:#F2F2F2; --bg-alt:#F2F2F2;
  --bg-inset:#F7F7F5;          /* nav rail / inset chrome — sits behind content */
  --black-20:#CBCBCB;          /* neutral track — utilization bars, dividers on fills */
  /* foreground ramp */
  --fg:#111111; --fg-muted:#2C2B2B; --fg-subtle:#5E5E5E; --fg-faint:#989898;
  /* accent (Blue 60) */
  --accent:#2D7DD2; --accent-hover:#1E72C8; --accent-press:#104B8A;
  --accent-10:#EAF2FB; --accent-80:#1A4E86; --on-accent:#FFFFFF;
  /* caution (Gold 60) — attention only, never decoration, never the regulated marker */
  --gold:#B78428; --secondary:#B78428; --warning:#A8751A;
  --gold-10:#FFF5E3; --gold-80:#7A5616;
  /* success (Green) */
  --green:#1F7A4B; --success:#1F7A4B; --green-10:#E8F4EE; --green-80:#145C37;
  /* danger (Red) */
  --red:#A4262C; --danger:#A4262C; --red-10:#FBEBEC; --red-80:#7A1B20;
  /* lines + elevation */
  --hair:rgba(17,17,17,0.10); --border:rgba(17,17,17,0.10);
  --hair-2:rgba(17,17,17,0.18); --border-strong:rgba(17,17,17,0.20);
  --focus-ring:#629EDE;
  --shadow-1:0 4px 10px rgba(0,0,0,0.05);
  /* radii */
  --radius-sm:2px; --r-btn:8px; --radius-md:8px; --r-card:12px; --radius-lg:12px;
  --radius-xl:16px; --r-pill:999px; --radius-pill:999px;
  /* spacing scale: 2 4 8 12 24 36 60 80 */
  --space-xxs:2px; --space-xs:4px; --space-s:8px; --space-m:12px;
  --space-l:24px; --space-xl:36px; --space-xxl:60px; --space-xxxl:80px;
  /* display sizes — hero metric only (sole exception to the 24px Inter ceiling) */
  --fs-hero:48px; --fs-hero-mobile:36px;
  /* type */
  --sans:"Figtree",system-ui,sans-serif;
  --ui:"Inter",system-ui,sans-serif;
  --serif:"Literata",Georgia,serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
  /* motion */
  --motion-fast:150ms ease-out; --motion-base:200ms ease-out;
}

/* ---- DARK ----------------------------------------------------------------
   Canonical · ratified by the Ascend design owner (2026-06-18).
   Derived from the Foundations seed (page #111111, card #1E1E1E,
   accent -> Blue 40 #629EDE, semantic ramps inverted to translucent-fill +
   light-ink, borders rgba(255,255,255,0.08)) extended to a complete map.
   The regulated layer is marked by form, not hue, so it survives this theme
   unchanged. Derivation recipe: references/voice-and-usage.md.
   ------------------------------------------------------------------------- */
[data-theme="dark"]{
  --bg:#111111; --surface:#1B1B1D; --band:#242427; --bg-alt:#242427;
  --bg-inset:#0B0B0B;          /* nav rail — darkest surface */
  --black-20:rgba(255,255,255,0.14);  /* neutral track on dark */
  --fg:#F2F2F2; --fg-muted:#D4D4D6; --fg-subtle:#9B9BA0; --fg-faint:#6E6E73;
  --accent:#629EDE; --accent-hover:#7FB0E6; --accent-press:#4A8AD0;
  --accent-10:rgba(98,158,222,0.16); --accent-80:#A7CBEF; --on-accent:#111111;
  --gold:#D6A23C; --secondary:#D6A23C; --warning:#D6A23C;
  --gold-10:rgba(214,162,60,0.16); --gold-80:#E8C685;
  --green:#3FA76B; --success:#3FA76B; --green-10:rgba(63,167,107,0.18); --green-80:#7DD3A6;
  --red:#E0575C; --danger:#E0575C; --red-10:rgba(224,87,92,0.18); --red-80:#F3A1A4;
  --hair:rgba(255,255,255,0.08); --border:rgba(255,255,255,0.08);
  --hair-2:rgba(255,255,255,0.16); --border-strong:rgba(255,255,255,0.16);
  --focus-ring:#7FB0E6;
  --shadow-1:0 4px 12px rgba(0,0,0,0.50);
}

/* ---- base ---------------------------------------------------------------- */
*{box-sizing:border-box;}
.pagehead[id],section[id]{scroll-margin-top:72px;} /* anchor offset: clears the sticky .topnav on in-page jumps (single mechanism, ~72px below nav) */
html,body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--ui);
  font-size:13.5px;line-height:1.45;-webkit-font-smoothing:antialiased;
  transition:background var(--motion-base),color var(--motion-base);}
.wrap{max-width:1200px;margin:0 auto;padding:20px 36px 48px;}
h1,h2,h3{font-family:var(--sans);font-weight:600;margin:0;letter-spacing:-0.01em;color:var(--fg);}
h1{font-size:26px;line-height:1.12;}
h2{font-size:15px;font-weight:600;margin:0 0 4px;}
h3{font-size:13px;font-weight:600;}
p{margin:0;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;}
.num{font-variant-numeric:tabular-nums;}
.mono,.addr{font-family:var(--mono);font-variant-numeric:tabular-nums;overflow-wrap:break-word;}
.eyebrow{font-family:var(--ui);font-size:11px;font-weight:600;letter-spacing:0.10em;
  text-transform:uppercase;color:var(--fg-faint);}
.sub{color:var(--fg-subtle);font-size:13px;max-width:70ch;}
.lede{font-size:14.5px;color:var(--fg);max-width:80ch;margin-top:10px;}
.fine{font-family:var(--serif);font-style:italic;font-size:12px;color:var(--fg-subtle);line-height:1.45;}

/* focus + reduced motion (a11y) */
:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px;border-radius:3px;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
}

/* ---- theme-switch guard -------------------------------------------------- *
   Suppress transitions for exactly the flip frame so a theme change SNAPS
   instead of letting every element animate its colour on its own clock (the
   staggered "blotty" wipe). The toggle adds `theme-switching` to <html>, flips
   the theme, then removes it on the next frame — so hover/other transitions are
   untouched. Reduced-motion is already handled by the rule above; this only
   covers the normal theme-switch case. MUST stay outside any media query. */
html.theme-switching,
html.theme-switching *,
html.theme-switching *::before,
html.theme-switching *::after{transition:none!important;}

/* ---- top nav ------------------------------------------------------------- */
.topnav{display:flex;align-items:center;justify-content:space-between;gap:24px;
  border-bottom:1px solid var(--hair);padding:14px 0;position:sticky;top:0;
  background:var(--bg);z-index:5;}
.topnav .left{display:flex;align-items:center;gap:22px;}
.logo{height:24px;width:auto;display:block;}
.navlinks{display:flex;gap:4px;}
.navlinks a{font-size:12.5px;font-weight:600;color:var(--fg-subtle);padding:5px 11px;
  border-radius:var(--r-pill);transition:background var(--motion-fast),color var(--motion-fast);}
.navlinks a:hover{background:var(--band);color:var(--fg);text-decoration:none;}
.navlinks a.active{background:var(--accent-10);color:var(--accent-80);}
.tag{font-size:10.5px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--fg-subtle);border:1px solid var(--hair);border-radius:var(--r-pill);
  padding:3px 10px;white-space:nowrap;}
/* mobile nav — a horizontal nav must collapse on phones, or the links run off-screen and
   force horizontal page scroll. Pair the .nav-toggle hamburger button (markup + a small
   ascendToggleNav() handler) with .topnav; the links become a dropdown <=760px. */
.nav-toggle{display:none;align-items:center;justify-content:center;height:30px;width:34px;padding:0;
  border:1px solid var(--hair);border-radius:8px;background:var(--bg);color:var(--fg);cursor:pointer;}
.nav-toggle svg{width:16px;height:16px;display:block;}
@media(max-width:760px){
  .nav-toggle{display:inline-flex;}
  .topnav{gap:12px;}
  .topnav .left{gap:14px;}
  .tag{display:none;}
  .navlinks{position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:2px;margin:0;
    background:var(--bg);border-bottom:1px solid var(--hair);box-shadow:0 10px 24px rgba(0,0,0,.07);
    padding:8px 16px 14px;max-height:0;overflow:hidden;opacity:0;pointer-events:none;
    transition:max-height var(--motion-fast),opacity var(--motion-fast);}
  .topnav.nav-open .navlinks{max-height:75vh;overflow:auto;opacity:1;pointer-events:auto;}
  .navlinks a{font-size:14px;padding:10px 12px;}
}
/* overflow guards: grid/flex items must shrink below their content's intrinsic width so a
   wide child (table/diagram) scrolls inside .tbl-scroll/.dgm-scroll instead of flooring the
   track at min-content on mobile (the classic grid/flex min-width:auto overflow). */
.kpi-strip>*,.tbl-scroll,.dgm-scroll{min-width:0;}

/* ---- application shell (sidenav + topbar) -------------------------------- */
/* token-driven replacements for the prototype's inline React styles (AdminShell). */
.app-sidenav{width:240px;border-right:1px solid var(--hair);background:var(--bg-inset);}
.nav-group-eyebrow{font-family:var(--ui);font-weight:500;font-size:10px;line-height:14px;
  letter-spacing:0.08em;text-transform:uppercase;color:var(--fg-subtle);}
.nav-item{display:flex;align-items:center;gap:10px;color:var(--fg-muted);
  transition:color var(--motion-fast),background var(--motion-fast);}
.nav-item:hover{color:var(--fg);}
.nav-item.active{background:var(--accent-10);color:var(--accent-80);box-shadow:inset 3px 0 0 var(--accent);}
.app-topbar{height:56px;border-bottom:1px solid var(--hair);background:var(--bg);}
/* env tag: regulated layer marked by FORM (outline pill + gold caution dot), not a fill hue */
.env-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;
  border:1px solid var(--hair-2);border-radius:var(--r-pill);font-family:var(--ui);
  font-size:12px;font-weight:500;color:var(--fg);white-space:nowrap;}
.env-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none;}

.pagehead{padding:24px 0 4px;}
section{margin-top:24px;}
.sec-head{display:flex;align-items:baseline;gap:10px;margin-bottom:12px;}
.sec-head .n{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:500;}

/* ---- cards --------------------------------------------------------------- */
.card{border:1px solid var(--hair);border-radius:var(--r-card);padding:20px;background:var(--surface);}
.card.lead{border-color:var(--accent);box-shadow:var(--shadow-1);background:var(--accent-10);}
.card.accent-top{border-top:3px solid var(--accent);}

/* ---- hero KPI + hairline strip (one hero metric, never equal-weight cards)  */
.kpi{display:flex;flex-direction:column;gap:6px;}
.kpi .k-label{font-family:var(--ui);font-size:11px;font-weight:600;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--fg-subtle);}
/* hero display metric: the one number 24px or larger per view — the sole exception
   to the Inter ceiling. Exactly one .k-value per view; supporting stats stay ≤ 24px. */
.kpi .k-value{font-family:var(--ui);font-weight:700;font-size:var(--fs-hero);line-height:52px;
  letter-spacing:-0.018em;font-variant-numeric:tabular-nums;color:var(--fg);}
@media(max-width:760px){ .kpi .k-value{font-size:var(--fs-hero-mobile);line-height:40px;} }
.kpi .k-sub{font-size:12px;color:var(--fg-subtle);}
.kpi-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hair);
  border:1px solid var(--hair);border-radius:var(--r-btn);overflow:hidden;margin-top:16px;}
.kpi-strip .cell{background:var(--surface);padding:12px 14px;display:flex;flex-direction:column;gap:3px;}
.kpi-strip .cell .l{font-size:10.5px;font-weight:600;letter-spacing:0.05em;text-transform:uppercase;color:var(--fg-faint);}
.kpi-strip .cell .v{font-family:var(--ui);font-weight:600;font-size:18px;font-variant-numeric:tabular-nums;color:var(--fg);}
.kpi-strip .cell .d{font-size:10.5px;color:var(--fg-subtle);line-height:1.3;}
@media(max-width:760px){ .kpi-strip{grid-template-columns:repeat(2,1fr);} }
@media(max-width:440px){ .kpi-strip{grid-template-columns:1fr;} }

/* ---- buttons ------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;
  border-radius:var(--r-btn);font-family:var(--ui);font-size:13px;font-weight:500;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background var(--motion-fast),border-color var(--motion-fast),color var(--motion-fast);}
.btn-primary{background:var(--accent);color:var(--on-accent);}
.btn-primary:hover{background:var(--accent-hover);text-decoration:none;}
.btn-secondary{background:transparent;border-color:var(--hair-2);color:var(--fg);}
.btn-secondary:hover{background:var(--band);text-decoration:none;}
.btn-ghost{background:transparent;color:var(--accent);}
.btn-ghost:hover{background:var(--accent-10);text-decoration:none;}
/* caution-tier confirm only (Pause / at-risk) — the ONLY interactive gold */
.btn-caution{background:var(--gold);color:var(--on-accent);}
.btn-caution:hover{filter:brightness(1.05);text-decoration:none;}
/* disabled — --band fill + --fg-faint ink + --hair border, identical in both themes,
   never opacity (at 50% the accent reads "broken" in light but "enabled-dim" in dark) */
.btn:disabled,.btn[disabled],.btn[aria-disabled="true"]{background:var(--band);color:var(--fg-faint);
  border-color:var(--hair);cursor:not-allowed;filter:none;}
input:disabled,select:disabled,textarea:disabled{background:var(--band);color:var(--fg-faint);
  border-color:var(--hair);cursor:not-allowed;}

/* ---- status pills + chips ------------------------------------------------ */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;
  border-radius:var(--r-pill);padding:3px 10px;line-height:1.4;white-space:nowrap;}
.pill .dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none;}
.pill.nominal{background:var(--green-10);color:var(--green-80);}
.pill.caution{background:var(--gold-10);color:var(--gold-80);}
.pill.critical{background:var(--red-10);color:var(--red-80);}
.pill.neutral{background:var(--band);color:var(--fg-subtle);}
.chip{display:inline-flex;align-items:center;font-size:10px;font-weight:600;
  border-radius:var(--r-pill);padding:2px 8px;background:var(--accent-10);color:var(--accent-80);}
.chip.gold{background:var(--gold-10);color:var(--gold-80);}
.chip.neutral{background:var(--band);color:var(--fg-subtle);}
/* token chip: mark + symbol */
.token-chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;}
.token-chip .tk-mark{width:14px;height:14px;border-radius:50%;background:var(--accent-10);
  display:inline-flex;align-items:center;justify-content:center;font-size:8px;color:var(--accent-80);}

/* ---- mono address (click-to-copy) --------------------------------------- */
.addr{font-size:12.5px;color:var(--fg);cursor:pointer;border-bottom:1px dotted var(--hair-2);}
.addr:hover{color:var(--accent);}

/* ---- tables -------------------------------------------------------------- */
table.matrix{width:100%;border-collapse:collapse;font-size:12px;}
table.matrix th,table.matrix td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--hair);
  vertical-align:top;line-height:1.35;}
table.matrix th{font-family:var(--ui);font-weight:700;font-size:10px;letter-spacing:0.04em;
  text-transform:uppercase;color:var(--fg-faint);}
table.matrix td.num{font-variant-numeric:tabular-nums;text-align:right;}
table.matrix th.num{text-align:right;}
.tbl-scroll{overflow-x:auto;}
@media(max-width:767px){ table.matrix{min-width:560px;} }

/* ---- utilization / capacity bar (two-tier: blue default, gold above 80%) ----- */
/* The documented markup (references/components.md §10) is a <span class="util">
   wrapping an inline-by-default <i> fill: <span class="util"><i style="width:NN%"></i></span>.
   A bare inline <span> ignores height/overflow and gives the <i> no box to size
   against, so the track must be forced to a block: display:block + width:100%
   makes the <span> a full-width sized track; .util>i is display:block;height:100%
   with its width driven by the inline style. .util.warn>i is the gold variant >80%. */
.util{display:block;width:100%;height:3px;background:var(--black-20);border-radius:var(--radius-sm);overflow:hidden;}
.util.standalone{height:6px;}
.util>i{display:block;height:100%;background:var(--accent);border-radius:var(--radius-sm);}
.util.warn>i{background:var(--gold);}

/* ---- mock-data strip (caution register) ---------------------------------- */
.mockstrip{background:var(--gold-10);border:1px solid var(--gold);border-color:color-mix(in srgb,var(--gold) 35%,transparent);
  border-radius:var(--r-btn);padding:7px 12px;font-size:11px;color:var(--gold-80);
  display:flex;align-items:center;gap:8px;}
.mockstrip svg{width:13px;height:13px;flex:none;}
/* quiet whole-page register — sticky footer strip (no chip glyph, neutral ink) */
.mockstrip.footer{position:sticky;bottom:0;left:0;right:0;justify-content:center;
  background:var(--surface);border:none;border-top:1px solid var(--hair);border-radius:0;
  color:var(--fg-faint);font-size:12px;padding:6px 24px;z-index:2;}
.mockstrip.footer svg{display:none;}

/* ---- key-insight / decision card (top-accent) ---------------------------- */
.keyinsight{border:1px solid var(--hair);border-top:3px solid var(--accent);border-radius:var(--r-card);
  padding:14px 16px;font-size:13.5px;line-height:1.5;background:var(--surface);}
.keyinsight .kihead{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.keyinsight .kihead svg{width:15px;height:15px;color:var(--accent);}

/* ---- disclosure ---------------------------------------------------------- */
.disclosure{border:1px solid var(--hair);border-radius:var(--r-btn);background:var(--surface);}
.disclosure>summary{cursor:pointer;padding:11px 14px;font-family:var(--sans);font-weight:600;
  font-size:12.5px;list-style:none;display:flex;align-items:center;gap:8px;color:var(--fg);}
.disclosure>summary::-webkit-details-marker{display:none;}
.disclosure>summary::before{content:"+";font-family:var(--mono);color:var(--accent);font-weight:700;}
.disclosure[open]>summary::before{content:"\2013";}
.disclosure .dbody{padding:0 14px 14px;}

/* ---- tooltip (abbr) ------------------------------------------------------ */
abbr[data-tip]{position:relative;text-decoration:underline dotted;text-decoration-thickness:1px;
  text-underline-offset:2px;cursor:help;}
abbr[data-tip]:hover::after{
  content:attr(data-tip);position:absolute;left:0;bottom:calc(100% + 7px);z-index:30;
  width:max-content;max-width:250px;background:var(--fg);color:var(--bg);
  font-family:var(--ui);font-style:normal;font-weight:400;font-size:11.5px;line-height:1.45;
  letter-spacing:0;text-transform:none;text-align:left;padding:8px 11px;border-radius:var(--r-btn);
  box-shadow:var(--shadow-1);white-space:normal;pointer-events:none;}
abbr[data-tip]:hover::before{content:"";position:absolute;left:9px;bottom:calc(100% + 2px);z-index:30;
  border:5px solid transparent;border-top-color:var(--fg);pointer-events:none;}

/* ---- footer / signature block -------------------------------------------- */
.foot{margin-top:28px;border-top:1px solid var(--hair);padding-top:14px;
  display:flex;flex-direction:column;gap:11px;}
.foot .frow{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;}
.foot .dleft{display:flex;gap:9px;align-items:flex-start;max-width:88ch;}
.foot .dleft svg{width:14px;height:14px;color:var(--fg-faint);margin-top:1px;flex:none;}
.foot .meta{font-size:11px;color:var(--fg-faint);}
.author{display:flex;align-items:center;gap:11px;}
.avatar{width:42px;height:42px;border-radius:50%;object-fit:cover;border:1.5px solid var(--accent);display:block;}
/* initials avatar — use when there is no person photo (the mountain Mark is logo only, never an avatar) */
.avatar-initials{width:42px;height:42px;border-radius:50%;border:1.5px solid var(--accent);background:var(--accent-10);
  display:inline-flex;align-items:center;justify-content:center;font-family:var(--sans);font-weight:700;font-size:14px;color:var(--accent-80);}
.author .an{font-family:var(--sans);font-weight:600;font-size:13px;color:var(--fg);}
.author .at{font-size:11px;color:var(--fg-subtle);margin-top:1px;}

/* ---- theme toggle (utility) --------------------------------------------- */
.theme-toggle{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 11px;
  border:1px solid var(--hair-2);border-radius:var(--r-pill);background:transparent;
  color:var(--fg-subtle);font-family:var(--ui);font-size:11.5px;font-weight:600;cursor:pointer;
  transition:background var(--motion-fast),color var(--motion-fast);}
.theme-toggle:hover{background:var(--band);color:var(--fg);}

/* ---- print --------------------------------------------------------------- */
@media print{
  @page{size:A4;margin:12mm;}
  html,body{background:#fff;color:#111;}
  .wrap{padding:0;max-width:none;}
  .topnav{position:static;}
  .theme-toggle{display:none;}
  section{break-inside:avoid;}
  .card,.kpi-strip,.keyinsight{box-shadow:none;}
}
