/* =========================================================================
   AllergyTap — shared design system
   Premium, minimal, editorial. Warm paper + ink + pine accent.
   Severity colors (brick / ochre) appear ONLY on allergen content.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400;1,500&family=Hanken+Grotesk:wght@300;400;500;600;700;800&display=swap');

:root{
  /* surfaces */
  --paper:      oklch(0.987 0.006 83);   /* warm off-white page */
  --paper-2:    oklch(0.963 0.009 80);   /* soft section bg     */
  --paper-3:    oklch(0.938 0.011 78);   /* deeper panel        */
  --card:       oklch(0.998 0.004 85);   /* near-white card     */
  --ink:        oklch(0.255 0.012 55);   /* warm near-black     */
  --ink-2:      oklch(0.435 0.012 58);   /* muted body text     */
  --ink-3:      oklch(0.585 0.010 60);   /* captions            */
  --line:       oklch(0.885 0.010 75);   /* hairline border     */
  --line-2:     oklch(0.820 0.012 73);   /* stronger border     */

  /* brand — deep pine-teal, jewel-toned, trustworthy */
  --pine:       oklch(0.420 0.055 178);
  --pine-deep:  oklch(0.330 0.050 180);
  --pine-soft:  oklch(0.930 0.022 178);

  /* severity (functional, allergen content only) */
  --severe:     oklch(0.515 0.150 27);   /* refined brick red   */
  --severe-bg:  oklch(0.955 0.030 30);
  --mild:       oklch(0.620 0.105 65);   /* muted ochre amber   */
  --mild-bg:    oklch(0.960 0.035 80);
  --safe:       oklch(0.480 0.080 158);  /* emergency / green   */
  --safe-bg:    oklch(0.955 0.028 158);

  /* type */
  --serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans:  'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --mono:  'Hanken Grotesk', system-ui, -apple-system, sans-serif;

  --maxw: 1240px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:17px;
  font-weight:400;
  letter-spacing:-0.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--pine);color:#fff}

/* ---- layout helpers ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
.section{padding:120px 0}
@media(max-width:820px){
  .wrap{padding:0 22px}
  .section{padding:76px 0}
  body{font-size:16px}
}

/* ---- type primitives ---- */
.eyebrow{
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:0.28em;
  text-transform:uppercase;
  color:var(--pine);
}
.serif{font-family:var(--serif);font-weight:400;line-height:1.04;letter-spacing:-0.01em}
.display{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(40px,6.2vw,82px);
  line-height:0.98;
  letter-spacing:-0.015em;
}
.h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.02;
  letter-spacing:-0.012em;
}
.lead{
  font-size:clamp(18px,2vw,21px);
  color:var(--ink-2);
  line-height:1.55;
  font-weight:400;
}
.muted{color:var(--ink-2)}
em.it{font-style:italic;font-family:inherit}
.accent{color:var(--pine)}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sans);font-size:15px;font-weight:500;
  letter-spacing:0.005em;
  padding:14px 26px;border-radius:2px;
  border:1px solid transparent;
  transition:all .35s var(--ease);
  white-space:nowrap;
}
.btn-ink{background:var(--ink);color:var(--paper)}
.btn-ink:hover{background:var(--pine-deep)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.btn-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.32);backdrop-filter:blur(6px)}
.btn-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn .arw{transition:transform .35s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}

/* ---- top nav ---- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 40px;
  transition:background .4s var(--ease),padding .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.over-dark{color:#fff}
.nav.scrolled{
  background:color-mix(in oklch,var(--paper) 86%,transparent);
  backdrop-filter:blur(16px) saturate(1.1);
  border-bottom-color:var(--line);
  color:var(--ink);
  padding:16px 40px;
}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;font-size:17px;letter-spacing:-0.02em}
.logo-mark{width:28px;height:28px;display:block;flex:0 0 auto}
.nav.over-dark .logo-mark,.foot .logo-mark{filter:brightness(0) invert(1)}
.brand .mark{
  width:26px;height:26px;border-radius:50%;
  border:1.5px solid currentColor;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:9px;font-weight:500;letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:14.5px;font-weight:500;color:inherit;opacity:.82;transition:opacity .25s}
.nav-links a:hover{opacity:1}
.nav-cta{
  font-size:14px;font-weight:500;padding:10px 20px;border-radius:2px;white-space:nowrap;
  border:1px solid currentColor;transition:all .3s var(--ease);
}
.nav.over-dark .nav-cta{border-color:rgba(255,255,255,.55)}
.nav.over-dark .nav-cta:hover{background:#fff;color:var(--ink);border-color:#fff}
.nav.scrolled .nav-cta{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.nav.scrolled .nav-cta:hover{background:var(--pine-deep);border-color:var(--pine-deep)}
@media(max-width:820px){
  .nav{padding:16px 22px}
  .nav.scrolled{padding:13px 22px}
  .nav-links{display:none}
}

/* ---- footer ---- */
.foot{background:var(--ink);color:oklch(0.82 0.01 70);padding:80px 0 40px}
.foot a{color:oklch(0.82 0.01 70);transition:color .25s}
.foot a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;border-bottom:1px solid oklch(0.34 0.01 60)}
.foot-grid h4{font-size:12px;font-family:var(--mono);letter-spacing:0.2em;text-transform:uppercase;color:oklch(0.62 0.01 70);margin-bottom:18px;font-weight:500}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:11px;font-size:14.5px}
.foot-brand .mark{border-color:oklch(0.82 0.01 70)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;font-size:13px;color:oklch(0.6 0.01 70);font-family:var(--mono);letter-spacing:0.02em}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}.foot-bottom{flex-direction:column;gap:14px;text-align:center}}

/* ---- reveal on scroll ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* =========================================================================
   .fa — Food Allergy List component (emoji-free, one-tap language switch)
   Shared by the standalone page and the landing demo phone.
   ========================================================================= */
.fa{background:var(--paper);color:var(--ink);padding:32px 28px 26px;display:flex;flex-direction:column;height:100%}
.fa[dir="rtl"]{direction:rtl}
.fa-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.fa-mark{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;letter-spacing:0.16em;text-transform:uppercase;color:var(--ink-2)}
.fa-logo{width:24px;height:24px;display:block;flex:0 0 auto;filter:brightness(0)}
.fa-lang-wrap{position:relative;flex-shrink:0}
.fa-lang{display:inline-flex;align-items:center;gap:6px;font-family:var(--sans);font-size:12px;font-weight:800;letter-spacing:0.04em;color:var(--ink);background:var(--card);border:1px solid var(--line-2);border-radius:100px;padding:8px 12px;cursor:pointer;transition:border-color .25s var(--ease),background .25s var(--ease)}
.fa-lang:hover{border-color:var(--ink)}
.fa-lang:active{transform:scale(.96)}
.fa-menu{position:absolute;right:0;top:40px;width:230px;max-height:290px;overflow:auto;background:var(--card);border:1px solid var(--line-2);border-radius:14px;box-shadow:0 22px 50px -28px rgba(30,22,14,.5);padding:7px;display:none;z-index:20}
.fa-menu.open{display:block}
.fa-menu button{width:100%;border:none;background:transparent;color:var(--ink);display:flex;justify-content:space-between;gap:12px;padding:10px 11px;border-radius:9px;font-size:14px;font-weight:600;text-align:left}
.fa-menu button:hover{background:var(--paper-2)}
.fa-menu button.on{background:var(--ink);color:var(--paper)}
.fa-menu .code{font-size:10px;font-weight:800;opacity:.6;letter-spacing:.08em}

.fa-head{margin-top:30px}
.fa-eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:0.18em;text-transform:uppercase;color:var(--pine)}
.fa-name{font-family:var(--sans);font-weight:700;font-size:29px;line-height:1.05;letter-spacing:-0.02em;margin-top:5px}
.fa-avoid{font-size:13.5px;color:var(--ink-2);line-height:1.5;margin-top:12px;max-width:34ch}

.fa-list{margin-top:22px;display:flex;flex-direction:column}
.fa-row{display:flex;align-items:center;gap:16px;padding:17px 0;border-top:1px solid var(--line)}
.fa-row:last-child{border-bottom:1px solid var(--line)}
.fa-accent{width:3px;align-self:stretch;border-radius:4px;flex-shrink:0}
.fa-row.sev .fa-accent{background:var(--severe)}
.fa-row.mil .fa-accent{background:var(--mild)}
.fa-nm{font-family:var(--sans);font-weight:750;font-size:24px;line-height:1.08;letter-spacing:-0.02em;flex:1;min-width:0}
.fa-sev{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;flex-shrink:0}
.fa-sev .dot{display:none}
.fa-row.sev .fa-nm,.fa-row.mil .fa-nm{color:var(--ink)}
.fa-row.sev .fa-sev{color:var(--ink-2)}
.fa-row.mil .fa-sev{color:var(--ink-2)}

.fa-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:6px}
.fa-foot .ln{font-family:var(--mono);font-size:10px;letter-spacing:0.06em;color:var(--ink-3)}
.fa-foot .disc{font-size:11.5px;color:var(--ink-3);line-height:1.5}

/* compact variant for the landing demo phone */
.fa--compact{padding:22px 20px 18px}
.fa--compact .fa-head{margin-top:22px}
.fa--compact .fa-name{font-size:23px}
.fa--compact .fa-avoid{font-size:12px;margin-top:9px}
.fa--compact .fa-list{margin-top:16px}
.fa--compact .fa-row{padding:14px 0}
.fa--compact .fa-nm{font-size:21px}
.fa--compact .fa-foot{padding-top:16px}