/* TryThisFuel front-site — brand system per assets/trythisfuel/brand/README.md */
@font-face {
  font-family: "Nunito";
  src: url("/site/Nunito.ttf") format("truetype");
  font-weight: 200 1000;
  font-display: swap;
}
:root {
  --bg: #FAFBF8;
  --text: #2C2C2A;
  --green: #48A848;
  --green-dark: #2E6B2E;
  --tint: #EAF5EA;
  --muted: #6b6b66;
  --card: #ffffff;
  --line: #e4e7e0;
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: var(--green-dark); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
section { padding: 56px 0; }

/* header */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky; top: 0; z-index: 50;
}
.nav { display: flex; align-items: center; gap: 22px; padding: 14px 0; }
.logo { font-weight: 800; font-size: 1.15rem; letter-spacing: .04em; text-decoration: none; color: var(--text); }
.logo b { color: var(--green); }
.nav a.item { color: var(--text); text-decoration: none; font-weight: 600; font-size: .95rem; opacity: .85; }
.nav a.item:hover { color: var(--green-dark); opacity: 1; }
.nav .cta { margin-left: auto; }
.btn {
  display: inline-block; background: var(--green); color: #fff !important;
  padding: 10px 20px; border-radius: 999px; font-weight: 700; text-decoration: none;
  border: none; font-size: .95rem; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--green-dark); }
.btn.ghost { background: transparent; color: var(--green-dark) !important; border: 2px solid var(--green); }
.btn.ghost:hover { background: var(--tint); }

/* hero */
.hero { padding: 64px 0 48px; }
.hero h1 { font-size: clamp(1.9rem, 4.6vw, 3.1rem); line-height: 1.12; font-weight: 800; max-width: 780px; }
.hero h1 em { color: var(--green); font-style: normal; }
.hero .sub { margin: 16px 0 8px; font-size: 1.12rem; color: var(--muted); max-width: 640px; }
.pillrow { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
.pill { background: var(--tint); color: var(--green-dark); font-weight: 700; font-size: .82rem; padding: 5px 12px; border-radius: 999px; }

/* demo */
.demo { margin-top: 34px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.demo h3 { font-size: 1.02rem; margin-bottom: 12px; }
.demo h3 span { color: var(--green-dark); }
.demo .controls { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 16px; }
.demo .controls label { font-size: .82rem; font-weight: 700; color: var(--muted); display: block; margin-bottom: 4px; }
.demo select {
  font-family: inherit; font-size: .95rem; font-weight: 700; color: var(--text);
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
.mealcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.mealcard { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #fff; text-decoration: none; color: var(--text); }
.mealcard img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.mealcard .mc-body { padding: 10px 12px 12px; }
.mealcard .mc-slot { font-size: .72rem; font-weight: 800; letter-spacing: .08em; color: var(--green-dark); text-transform: uppercase; }
.mealcard .mc-title { font-weight: 700; font-size: .95rem; line-height: 1.25; margin: 3px 0 6px; }
.mealcard .mc-macros { font-size: .8rem; color: var(--muted); font-weight: 600; }
.daytotal { margin-top: 14px; background: var(--tint); border-radius: 10px; padding: 10px 14px; font-size: .9rem; font-weight: 700; color: var(--green-dark); }
.demo .note { margin-top: 10px; font-size: .78rem; color: var(--muted); }

/* proof strip */
.proof { background: var(--tint); }
.proof .headline { text-align: center; font-size: 1.3rem; font-weight: 800; margin-bottom: 24px; }
.proof .headline span { color: var(--green-dark); }
.cardrow { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.proofcard { border-radius: 12px; overflow: hidden; background: #fff; border: 1px solid var(--line); text-decoration: none; color: var(--text); }
.proofcard img { aspect-ratio: 1/1; object-fit: cover; }
.proofcard .pc-cap { padding: 8px 12px; font-size: .82rem; font-weight: 700; }
.proofcard .pc-cap b { color: var(--green-dark); }

/* how it works */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 28px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step .n {
  width: 34px; height: 34px; border-radius: 50%; background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 12px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { font-size: .92rem; color: var(--muted); }
h2.sec { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; }
p.seclede { color: var(--muted); margin-top: 8px; max-width: 640px; }

/* sample week */
.week { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; margin-top: 28px; align-items: start; }
.weekgrid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.weekgrid .dayhead { font-size: .75rem; font-weight: 800; letter-spacing: .06em; color: var(--muted); text-transform: uppercase; text-align: center; }
.wcell { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 8px; font-size: .74rem; line-height: 1.3; }
.wcell .slot { font-weight: 800; font-size: .62rem; letter-spacing: .07em; color: var(--green-dark); text-transform: uppercase; }
.wcell .t { font-weight: 700; margin: 2px 0; }
.wcell .m { color: var(--muted); font-weight: 600; }
.grocery { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.grocery h3 { font-size: .95rem; margin-bottom: 10px; }
.grocery h4 { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--green-dark); margin: 10px 0 4px; }
.grocery ul { list-style: none; }
.grocery li { font-size: .84rem; padding: 2px 0 2px 20px; position: relative; color: var(--text); }
.grocery li::before { content: ""; position: absolute; left: 0; top: 8px; width: 10px; height: 10px; border: 2px solid var(--green); border-radius: 3px; }

/* calculator */
.calc { background: var(--tint); }
.calcbox { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; margin-top: 26px; }
.calcgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.calcgrid label { font-size: .8rem; font-weight: 700; color: var(--muted); display: block; margin-bottom: 4px; }
.calcgrid input, .calcgrid select {
  width: 100%; font-family: inherit; font-size: .95rem; font-weight: 700;
  padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--text);
}
.calcbox .btn { margin-top: 16px; }
.results { display: none; margin-top: 20px; }
.results.show { display: block; }
.macros4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; }
.macro { background: var(--tint); border-radius: 10px; padding: 14px; text-align: center; }
.macro .v { font-size: 1.5rem; font-weight: 800; color: var(--green-dark); }
.macro .l { font-size: .78rem; font-weight: 700; color: var(--muted); }
.results .next { margin-top: 16px; font-weight: 700; }

/* protein economy */
.econ { text-align: center; }
.econ blockquote { font-size: clamp(1.15rem, 2.6vw, 1.6rem); font-weight: 800; max-width: 760px; margin: 0 auto; }
.econ blockquote span { color: var(--green); }
.econ .src { margin-top: 10px; font-size: .85rem; color: var(--muted); }

/* pricing */
.founding {
  background: var(--green); color: #fff; border-radius: var(--radius);
  padding: 16px 22px; font-weight: 700; margin-top: 26px; text-align: center;
}
.founding a { color: #fff; }
.tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 22px; }
.tier { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; }
.tier.hot { border: 2px solid var(--green); position: relative; }
.tier .tag {
  position: absolute; top: -12px; left: 20px; background: var(--green); color: #fff;
  font-size: .7rem; font-weight: 800; letter-spacing: .06em; padding: 3px 10px; border-radius: 999px; text-transform: uppercase;
}
.tier h3 { font-size: 1.05rem; }
.tier .price { font-size: 1.9rem; font-weight: 800; margin: 8px 0 2px; }
.tier .price small { font-size: .9rem; color: var(--muted); font-weight: 700; }
.tier .when { font-size: .78rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--green-dark); margin-bottom: 10px; }
.tier ul { list-style: none; margin: 8px 0 16px; }
.tier li { font-size: .88rem; padding: 3px 0 3px 22px; position: relative; }
.tier li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.tier .btn { margin-top: auto; text-align: center; }

/* signup */
.signup { background: var(--tint); }
.signupbox { max-width: 560px; margin: 0 auto; text-align: center; }
.signupform { display: flex; gap: 10px; margin-top: 18px; }
.signupform input {
  flex: 1; font-family: inherit; font-size: 1rem; font-weight: 600;
  padding: 12px 16px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--text);
}
.sumsg { margin-top: 12px; font-weight: 700; font-size: .92rem; display: none; }
.sumsg.ok { display: block; color: var(--green-dark); }
.sumsg.err { display: block; color: #a33; }

/* blog teaser */
.bloglist { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 24px; }

/* footer */
footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: .82rem; color: var(--muted); }
footer.site .cols { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; }
footer.site a { color: var(--muted); }

@media (max-width: 820px) {
  .week { grid-template-columns: 1fr; }
  .weekgrid { grid-template-columns: repeat(2, 1fr); }
  .weekgrid .dayhead { display: none; }
  .signupform { flex-direction: column; }
  .nav a.item.hidesm { display: none; }
}