/* SampattiTrack site — shared foundation. Page-specific rules live in home.css, blog.css, help.css and pages.css. */

@font-face{font-family:'Geist';src:url(/fonts/geist.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Geist Mono';src:url(/fonts/geist-mono.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url(/fonts/instrument-serif.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url(/fonts/instrument-serif-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Material Symbols Rounded';src:url(/fonts/symbols.woff2) format('woff2');font-weight:400;font-style:normal;font-display:block}

:root{
  --bg:#F5F1EA;--surface:#FFFFFF;--surface-alt:#FAF7F2;--ink:#17150F;
  --ink70:rgba(23,21,15,.72);--ink55:rgba(23,21,15,.58);--ink35:rgba(23,21,15,.35);--ink15:rgba(23,21,15,.15);
  --line:rgba(23,21,15,.09);--chip:rgba(23,21,15,.06);
  --accent:#E0531C;--accent-text:#B8410F;--on-accent:#FFFFFF;
  --green:#0E8054;--green-soft:#E6F5EE;--red:#C2410C;--red-soft:#FBEAE0;--amber:#B4690E;--amber-soft:#FAEFDC;--indigo:#4F46E5;--indigo-soft:#EEF0FF;
  --band:#17150F;--band-ink:#F5F1EA;--band-muted:rgba(245,241,234,.66);--band-line:rgba(245,241,234,.14);
  --shadow:rgba(23,21,15,.14);--bezel:#17150F;--tab:#17150F;--tab-ink:#F5F1EA;
  --serif:'Instrument Serif',Georgia,serif;--sans:'Geist',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--mono:'Geist Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#0F0E0C;--surface:#1A1916;--surface-alt:#141310;--ink:#F5F1EA;
  --ink70:rgba(245,241,234,.74);--ink55:rgba(245,241,234,.6);--ink35:rgba(245,241,234,.36);--ink15:rgba(245,241,234,.15);
  --line:rgba(245,241,234,.1);--chip:rgba(245,241,234,.07);
  --accent:#FF7A3F;--accent-text:#FF8A55;--on-accent:#17150F;
  --green:#5DD3A1;--green-soft:rgba(93,211,161,.15);--red:#FF8961;--red-soft:rgba(255,137,97,.15);--amber:#F4B860;--amber-soft:rgba(244,184,96,.15);--indigo:#7A78F7;--indigo-soft:rgba(122,120,247,.15);
  --band:#1A1916;--band-line:rgba(245,241,234,.12);--shadow:rgba(0,0,0,.5);--bezel:#2A2823;--tab:#F5F1EA;--tab-ink:#17150F;
  color-scheme:dark;
}}
:root[data-theme=dark]{
  --bg:#0F0E0C;--surface:#1A1916;--surface-alt:#141310;--ink:#F5F1EA;
  --ink70:rgba(245,241,234,.74);--ink55:rgba(245,241,234,.6);--ink35:rgba(245,241,234,.36);--ink15:rgba(245,241,234,.15);
  --line:rgba(245,241,234,.1);--chip:rgba(245,241,234,.07);
  --accent:#FF7A3F;--accent-text:#FF8A55;--on-accent:#17150F;
  --green:#5DD3A1;--green-soft:rgba(93,211,161,.15);--red:#FF8961;--red-soft:rgba(255,137,97,.15);--amber:#F4B860;--amber-soft:rgba(244,184,96,.15);--indigo:#7A78F7;--indigo-soft:rgba(122,120,247,.15);
  --band:#1A1916;--band-line:rgba(245,241,234,.12);--shadow:rgba(0,0,0,.5);--bezel:#2A2823;--tab:#F5F1EA;--tab-ink:#17150F;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
main{flex:1}
[hidden]{display:none!important}
img,video,svg{max-width:100%}
a{color:var(--accent-text);text-underline-offset:.2em}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
summary{list-style:none;cursor:pointer}
summary::-webkit-details-marker{display:none}
::selection{background:var(--accent);color:var(--on-accent)}
code{font-family:var(--mono);font-size:.88em;background:var(--chip);border-radius:6px;padding:1px 6px}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* Layout */
.wrap{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (max-width:480px){.wrap{padding-left:16px;padding-right:16px}}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--accent);color:var(--on-accent);padding:8px 14px;border-radius:999px;font-weight:600;text-decoration:none}
.skip:focus{left:12px}

/* Icons: <span class="icon" aria-hidden="true">name</span>; add .fill for the filled style */
.icon{font-family:'Material Symbols Rounded';font-weight:normal;font-style:normal;font-size:20px;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-feature-settings:'liga';font-feature-settings:'liga';font-variation-settings:'FILL' 0;flex:none;user-select:none}
.icon.fill{font-variation-settings:'FILL' 1}

/* Type */
.eyebrow{margin:0 0 16px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink55);font-weight:400}
.eyebrow.accent{color:var(--accent-text)}
.display{font-family:var(--serif);font-weight:400;letter-spacing:-.025em;margin:0}
.display em{font-style:italic;color:var(--accent)}
.d-hero{font-size:clamp(56px,8.4vw,112px);line-height:.9}
.d-xl{font-size:clamp(48px,7vw,96px);line-height:.95}
.d-page{font-size:clamp(52px,7vw,88px);line-height:.95}
.d-lg{font-size:clamp(40px,5.4vw,68px);line-height:1;letter-spacing:-.02em}
.d-md{font-size:clamp(36px,4.6vw,56px);line-height:1;letter-spacing:-.02em}
.d-sm{font-size:44px;line-height:1;letter-spacing:-.02em}
.lead{font-size:19px;line-height:1.55;color:var(--ink70);max-width:32em}
.muted{color:var(--ink55)}
.small{font-size:14px}
.mono{font-family:var(--mono)}
.page-head{padding-top:72px;padding-bottom:40px}
.page-head .display{margin-bottom:16px}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px 40px;margin-bottom:40px}
.more-link{display:inline-flex;align-items:center;gap:4px;font-weight:500;font-size:15px}
.more-link .icon{font-size:18px}

/* Rules */
.rule-double{border-top:3px double var(--ink15)}
.rule{border-top:1px solid var(--line)}

/* Surfaces */
.card{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:24px}
.band{background:var(--band);color:var(--band-ink)}
.band a{color:var(--band-ink)}
.alt{background:var(--surface-alt);border-top:1px solid var(--line)}
.icon-tile{width:40px;height:40px;border-radius:12px;background:var(--chip);display:inline-flex;align-items:center;justify-content:center;color:var(--accent)}
.icon-tile .icon{font-size:22px}
.pill-link{display:inline-block;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:14px;text-decoration:none;color:var(--ink)}
.pill-link:hover{border-color:var(--accent);color:var(--accent-text)}
.note{display:flex;gap:14px;background:var(--amber-soft);border-radius:16px;padding:16px 18px;margin:24px 0}
.note .icon{font-size:22px;line-height:1.3;color:var(--amber)}
.note p,.prose .note p{margin:0;line-height:1.6}
.note.tip{background:var(--green-soft)}
.note.tip .icon{color:var(--green)}

/* Ledger card: mono postings that balance */
.ledger{font-family:var(--mono);font-size:14px;line-height:1.8;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:22px 24px}
.ledger .row{display:flex;justify-content:space-between;gap:12px}
.ledger .head{color:var(--ink55);font-size:11px;letter-spacing:.1em;margin-bottom:6px}
.ledger .sum{border-top:3px double var(--ink15);margin-top:8px;padding-top:6px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:var(--on-accent);text-decoration:none;font-weight:600;padding:13px 24px;border-radius:999px;transition:transform .15s ease}
.btn:hover{color:var(--on-accent);transform:translateY(-1px)}
.btn.ghost{background:var(--surface);border:1px solid var(--line);color:var(--ink)}
.btn.ghost:hover{color:var(--ink)}
.btn.sm{font-size:14px;padding:8px 16px}
.btn .icon{font-size:18px}
.badge{display:inline-block;line-height:0;border-radius:10px;width:max-content}
.badge img{display:block;height:52px;width:auto}
.badge.lg img{height:56px}
.badge.sm img{height:44px}
.badge.xs img{height:42px}

/* FAQ / disclosure */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{font-weight:600;display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.faq summary .icon{font-size:22px;color:var(--ink55);transition:transform .2s ease}
.faq details[open] summary .icon{transform:rotate(45deg)}
.faq details[open] summary .icon.chev{transform:rotate(180deg)}
.faq details > :not(summary){margin:10px 0 0;color:var(--ink70);line-height:1.65;max-width:40em}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in oklab,var(--bg) 86%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.site-header .bar{display:flex;align-items:center;gap:12px 28px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:600;font-size:17px;letter-spacing:-.02em}
.brand:hover{color:var(--ink)}
.brand img{width:32px;height:32px;border-radius:8px;display:block;background:var(--surface)}
.nav{display:flex;align-items:center;gap:4px 22px;flex-wrap:wrap;margin-left:auto}
.nav a{color:var(--ink55);text-decoration:none;font-size:15px;font-weight:500;padding:6px 0}
.nav a:hover,.nav a[aria-current]{color:var(--ink)}
.nav .btn{color:var(--on-accent);padding:8px 16px;font-size:14px}
.nav .btn:hover{color:var(--on-accent)}
@media (max-width:640px){
  .site-header .bar{gap:8px 16px}
  .nav{gap:2px 16px;width:100%;margin-left:0}
  .nav a{font-size:14px}
  .nav .btn{display:none}
}

/* Footer */
.site-footer{border-top:3px double var(--ink15);background:var(--bg)}
.site-footer .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:32px 40px;padding-top:56px;padding-bottom:40px}
.site-footer .about{grid-column:span 2;display:flex;flex-direction:column;gap:14px;min-width:0}
@media (max-width:420px){.site-footer .about{grid-column:auto}}
.site-footer .brand img{width:28px;height:28px;border-radius:7px}
.site-footer .tagline{margin:0;font-family:var(--serif);font-size:28px;line-height:1.1;max-width:12em}
.site-footer .col{display:flex;flex-direction:column;gap:8px;font-size:15px}
.site-footer .col a{color:var(--ink);text-decoration:none}
.site-footer .col a:hover{color:var(--accent-text)}
.site-footer .col .eyebrow{margin:0 0 4px;font-size:11px;letter-spacing:.12em}
.site-footer .legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 32px;padding-top:20px;padding-bottom:40px;border-top:1px solid var(--line);font-size:13px;color:var(--ink55)}
.site-footer .legal p{margin:0;max-width:52em;line-height:1.55}

/* Long-form text (blog posts, help articles, privacy, support) */
.prose{min-width:0;max-width:720px;font-size:18px;line-height:1.75}
.prose > :first-child{margin-top:0}
.prose h2{margin:44px 0 12px;font-size:28px;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.prose h3{margin:32px 0 10px;font-size:21px;font-weight:600;letter-spacing:-.015em;line-height:1.3}
.prose p,.prose ul,.prose ol{margin:0 0 18px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:0 0 6px}
.prose li::marker{color:var(--ink55)}
.prose strong{font-weight:600}
.prose .summary{font-size:21px;line-height:1.55;border-left:3px solid var(--accent);padding-left:20px;margin:0 0 32px}
.prose .callout{font-size:19px;line-height:1.55;color:var(--ink70);padding:20px 24px;background:var(--surface);border:1px solid var(--line);border-radius:20px;margin:0 0 40px}
.prose .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
.prose table{border-collapse:collapse;width:100%;min-width:460px;font-size:15px;line-height:1.5}
.prose th{padding:14px 18px;text-align:left;color:var(--ink55);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:500}
.prose td{padding:12px 18px;border-top:1px solid var(--line)}
.prose .num{text-align:right;font-family:var(--mono)}
.prose .formula{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;margin:24px 0;text-align:center;font-family:var(--serif);font-size:30px;overflow-x:auto}
.prose .disclaimer{margin-top:32px;font-size:14px;color:var(--ink55)}
.breadcrumb{font-size:14px;color:var(--ink55);margin-bottom:24px;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--ink55)}
.toc{font-size:14px;display:flex;flex-direction:column;gap:2px;padding-left:14px;border-left:1px solid var(--line)}
.toc .eyebrow{margin:0 0 8px;font-size:11px;letter-spacing:.12em}
.toc a{padding:4px 0;color:var(--ink55);text-decoration:none}
.toc a:hover{color:var(--ink)}
.app-card{display:flex;flex-direction:column;gap:12px}
.app-card img.app-icon{width:44px;height:44px;border-radius:11px;background:var(--surface-alt)}
.app-card p{margin:0;font-weight:600;font-size:16px;line-height:1.35}