/* ============================================================
   OptimFood.ai — SHARED v2 layer (Design System v2)
   Tokens, base, bands, buttons, nav, footer — loaded by EVERY
   v2 page before its page stylesheet.
   Source of truth: docs/optimfood_design_system.md §2–§5
   ============================================================ */

/* ---- fonts (self-hosted, subset latin + latin-ext) ---- */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/sg700-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/sg700-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/inter400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/inter400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/inter600-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/inter600-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/jbm400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/jbm400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/jbm500-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/jbm500-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  /* Palette B — LOCKED */
  --ink:#0F1A17; --paper:#FFFFFF; --teal:#0D9488; --green:#10B981; --amber:#F59E0B;
  /* neutral scale derived from ink */
  --ink-70:#41524C; --ink-40:#8A9691;
  --paper-70:rgba(255,255,255,.66);
  --line-on-light:rgba(15,26,23,.14); --line-on-dark:rgba(255,255,255,.16);
  --panel-on-light:#F2F6F4; --panel-on-dark:#17251F;
  /* derived accessible text hues (design-system §2) */
  --teal-ink:#0B7A70; --green-ink:#047857; --amber-ink:#B45309;
  /* semantic aliases */
  --color-primary:var(--teal); --color-money-good:var(--green);
  --color-attention:var(--amber); --color-focus:var(--teal);
  /* type */
  --font-display:'Space Grotesk','Inter',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
  --fs-hero:clamp(56px,8.5vw,110px);
  --fs-section:clamp(34px,4.5vw,56px);
  --fs-h3:clamp(22px,2.6vw,28px);
  --fs-lead:clamp(18px,2vw,20px);
  --fs-body:16px; --fs-caption:13px;
  --fs-stat:clamp(32px,4vw,48px);
  --fs-eyebrow:12px;
  /* space / radius */
  --space-2:8px; --space-3:12px; --space-4:16px; --space-5:24px;
  --space-6:32px; --space-7:48px; --space-8:64px; --space-9:96px;
  --radius-sm:12px; --radius-md:20px; --radius-lg:30px; --radius-pill:9999px;
  --maxw-site:1180px;
}

/* ---- reset / base ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--paper); color:var(--ink);
  font-family:var(--font-body); font-size:var(--fs-body); line-height:1.5;
  -webkit-font-smoothing:antialiased; overflow-x:clip;
}
img,canvas,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;background:none;border:0;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--color-focus);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--maxw-site);margin:0 auto;padding-inline:clamp(20px,4.5vw,40px)}
.skip-link{
  position:fixed;top:-60px;left:16px;z-index:200;background:var(--ink);color:var(--paper);
  padding:12px 22px;border-radius:var(--radius-pill);font-weight:600;transition:top .2s;
}
.skip-link:focus{top:12px}

/* ============ BANDS — the two-mode rhythm, hard cuts ============ */
.band{padding-block:clamp(64px,9vw,var(--space-9))}
.band--paper{background:var(--paper);color:var(--ink)}
.band--ink{background:var(--ink);color:var(--paper)}
.kicker{
  font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--teal);margin-bottom:18px;
}
.band--paper .kicker{color:var(--teal-ink)}
h2{
  font-family:var(--font-display);font-weight:700;font-size:var(--fs-section);
  line-height:1.04;letter-spacing:-.02em;text-wrap:balance;max-width:20ch;margin-bottom:20px;
}
.sec-head p{max-width:58ch;font-size:var(--fs-lead);line-height:1.6}
.band--paper .sec-head p{color:var(--ink-70)}
.band--ink .sec-head p{color:var(--paper-70)}
.sec-head{margin-bottom:clamp(36px,5vw,64px)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---- inner-page hero (content pages, no cinema) ---- */
.page-hero{background:var(--ink);color:var(--paper);padding:clamp(140px,18vh,180px) 0 clamp(56px,8vw,84px)}
.page-hero h1{
  font-family:var(--font-display);font-weight:700;font-size:clamp(38px,5.5vw,68px);
  line-height:1.02;letter-spacing:-.025em;max-width:16ch;text-wrap:balance;margin-bottom:22px;
}
.page-hero h1 .accent{color:var(--teal)}
.page-hero .sub{font-size:var(--fs-lead);line-height:1.6;color:var(--paper-70);max-width:56ch}

/* ---- buttons: always pills ---- */
.btn{
  display:inline-flex;align-items:center;gap:10px;border-radius:var(--radius-pill);
  padding:14px 32px;font-weight:600;font-size:16px;min-height:48px;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--teal);color:var(--ink)}
.btn-primary:hover{background:#10A697}
.btn-primary svg path{stroke:var(--ink)}
.btn-ghost-dark{box-shadow:inset 0 0 0 2px rgba(255,255,255,.55);color:var(--paper)}
.btn-ghost-dark:hover{box-shadow:inset 0 0 0 2px var(--paper)}
.btn-ghost-light{box-shadow:inset 0 0 0 2px var(--ink);color:var(--ink)}
.btn-ghost-light:hover{background:var(--ink);color:var(--paper)}

/* ============ ANNOUNCEMENT BAR (shared — sits ABOVE the nav) ============
   Ink bar, teal accent (§2: ink+teal carry the surface; green stays money,
   amber stays attention). It lives in normal flow so it scrolls away with
   the page; the nav is absolutely parked under it and only switches to
   position:fixed once the bar has scrolled past (i18n.js). Dismissal is
   remembered per visitor — localStorage 'of_ann_v1' = 'off'. */
.topbar{position:relative;z-index:100}
html.ann-off .announce{display:none}
.announce{background:var(--ink);border-bottom:1px solid var(--line-on-dark)}
.announce-in{
  position:relative;max-width:var(--maxw-site);margin:0 auto;
  padding:9px 34px;text-align:center;text-wrap:balance;
  font-size:12px;line-height:1.42;color:var(--paper-70);
}
.announce-dot{
  display:inline-block;vertical-align:middle;width:6px;height:6px;border-radius:50%;
  background:var(--teal);margin:-2px 9px 0 0;
}
.announce-text{display:inline}
.announce-text .em{color:var(--paper);font-weight:600}
.announce-cta{
  display:inline-block;margin-left:10px;color:var(--teal);font-weight:600;white-space:nowrap;
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;
  transition:color .18s ease,text-decoration-color .18s ease;
}
.announce-cta:hover{color:#16B3A3;text-decoration-color:currentColor}
.announce-x{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:32px;height:32px;display:none;align-items:center;justify-content:center;
  color:var(--ink-40);border-radius:var(--radius-pill);
  transition:color .15s ease,background .15s ease;
}
html.js .announce-x{display:flex}
.announce-x:hover{color:var(--paper);background:rgba(255,255,255,.07)}
@media (min-width:721px){
  .announce-in{padding:10px 66px;font-size:13.5px}
  .announce-x{right:30px}
}
/* visually hidden (screen-reader only) */
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}

/* ============ NAV (shared) ============ */
#nav{position:fixed;inset-inline:0;top:0;z-index:100;transition:background .25s ease,box-shadow .25s ease}
/* under the announcement bar: parked at its bottom edge, scrolls with the
   page, then pinned to the viewport once the bar is gone */
.topbar #nav{position:absolute;top:100%}
.topbar #nav.nav-fixed{position:fixed;top:0}
#nav.scrolled{background:var(--ink);box-shadow:0 1px 0 var(--line-on-dark)}
.nav-in{
  max-width:var(--maxw-site);margin:0 auto;padding:14px clamp(20px,4.5vw,40px);
  display:flex;align-items:center;gap:26px;
}
.nav-lockup{height:40px;width:auto}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-link{color:var(--paper-70);font-size:15px;padding:10px 2px;transition:color .15s}
.nav-link:hover{color:var(--paper)}
.nav-link[aria-current="page"]{color:var(--paper)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-lang{
  font-family:var(--font-mono);font-size:13px;font-weight:500;color:var(--paper);
  min-width:44px;min-height:44px;border-radius:var(--radius-pill);
  box-shadow:inset 0 0 0 1.5px var(--line-on-dark);
}
.nav-lang:hover{box-shadow:inset 0 0 0 1.5px var(--paper-70)}
.nav-login{color:var(--paper-70);font-size:15px;padding:10px 4px}
.nav-login:hover{color:var(--paper)}
.nav-cta{
  background:var(--teal);color:var(--ink);font-weight:600;font-size:15px;white-space:nowrap;
  border-radius:var(--radius-pill);padding:12px 24px;min-height:44px;display:inline-flex;align-items:center;
}
.nav-cta:hover{background:#10A697}
.nav-cta-short{display:none}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;align-items:center}
.nav-burger span{display:block;width:22px;height:2px;background:var(--paper);transition:transform .2s,opacity .2s}
.nav-mobile{display:none}
#nav.menu-open{background:var(--ink)}
#nav.menu-open .nav-mobile{
  display:flex;flex-direction:column;background:var(--ink);
  border-top:1px solid var(--line-on-dark);padding:10px clamp(20px,4.5vw,40px) 24px;
}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile-link{color:var(--paper);padding:14px 0;font-size:17px;border-bottom:1px solid var(--line-on-dark)}
.nav-mobile-link:last-child{border-bottom:0}

/* ============ FOOTER (shared) ============ */
footer{background:var(--ink);color:var(--paper);padding:56px 0 44px}
.foot-in{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.foot-lockup{height:36px;width:auto}
.foot-links{display:flex;gap:24px;margin-left:auto;flex-wrap:wrap}
.foot-links a{color:var(--paper-70);font-size:14.5px;padding:8px 0}
.foot-links a:hover{color:var(--paper)}
.foot-in .copy{
  width:100%;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--paper-70);border-top:1px solid var(--line-on-dark);padding-top:22px;margin-top:10px;
}

/* ---- quiet email alternative under primary CTAs ---- */
.alt-contact{font-size:14px}
.alt-contact a{text-decoration:underline;text-underline-offset:3px;font-weight:600}
.band--paper .alt-contact{color:var(--ink-70)}
.band--paper .alt-contact a{color:var(--teal-ink)}
.band--ink .alt-contact{color:var(--paper-70)}
.band--ink .alt-contact a{color:var(--teal)}

/* ============ shared responsive (nav) ============ */
@media (max-width:960px){
  .nav-links{display:none}
  .nav-login{display:none}
  .nav-burger{display:flex}
  .nav-cta-long{display:none}
  .nav-cta-short{display:inline}
}

/* ============ reveal (driven by i18n.js IntersectionObserver → .show) ============ */
/* hidden state exists ONLY under .js so no-JS and crawlers see everything */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease}
.js .reveal.show{opacity:1;transform:none}

/* ============ reduced motion ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}