:root {
  --accent: #129573; --accent-dark: #0d7a5e; --accent-soft: #e3f4ee;
  --bg: #ffffff; --bg-alt: #f5f7f6; --card: #ffffff; --text: #14181c; --muted: #5d6670; --line: #e3e7ea;
  --protein: #3f78f2; --carbs: #f0a020; --fat: #e0506a;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --accent: #2bb48c; --accent-dark: #39c79c; --accent-soft: #12302a; --bg: #0e1113; --bg-alt: #151a1d;
          --card: #1a2023; --text: #eef1f3; --muted: #9aa4ad; --line: #283035; color-scheme: dark; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
img { max-width: 100%; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

header.site { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.brand .dot { width: 26px; height: 26px; border-radius: 50%; background: conic-gradient(var(--protein) 0 35%, var(--carbs) 0 70%, var(--fat) 0 100%); box-shadow: inset 0 0 0 6px var(--bg); outline: 2px solid var(--accent); }
nav.links { display: flex; gap: 18px; margin-left: auto; align-items: center; }
nav.links a { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; }
nav.links a:hover, nav.links a.active { color: var(--text); }
.btn { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; padding: 10px 18px; border-radius: 12px; border: 0; font-size: 16px; cursor: pointer; font-family: inherit; }
.btn:hover { background: var(--accent-dark); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--bg-alt); }
nav.links .btn { color: #fff; font-size: 15px; padding: 8px 14px; }
@media (max-width: 720px) {
  header.site .wrap { height: auto; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; gap: 10px; }
  nav.links { width: 100%; margin-left: 0; gap: 14px; flex-wrap: wrap; }
  nav.links .btn { margin-left: auto; }
}

.hero { padding: 72px 0 56px; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.05; letter-spacing: -0.035em; margin: 0 0 18px; }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.badge { display: inline-flex; align-items: center; gap: 8px; background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 12px; font-weight: 600; font-size: 15px; }
.badge small { font-weight: 400; opacity: .7; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }

.phone { margin: 0 auto; width: 290px; border-radius: 42px; background: var(--card); border: 1px solid var(--line); box-shadow: 0 30px 60px -20px rgba(0,0,0,.25); padding: 22px 18px; }
.phone .hi { font-weight: 800; font-size: 26px; margin: 4px 4px 12px; }
.phone .chip { display: inline-block; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 4px 12px; border-radius: 99px; margin: 0 0 12px 4px; }
.phone .card { background: var(--bg-alt); border-radius: 18px; padding: 14px; margin-bottom: 10px; }
.phone .big { font-size: 32px; font-weight: 800; letter-spacing: -0.02em; }
.phone .muted { color: var(--muted); font-size: 13px; }
.rings { display: flex; justify-content: space-between; margin-top: 10px; }
.ring { width: 66px; height: 66px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 15px; position: relative; }
.ring::before { content: ""; position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(var(--c) var(--p), color-mix(in srgb, var(--c) 18%, transparent) 0); mask: radial-gradient(circle, transparent 56%, #000 57%); -webkit-mask: radial-gradient(circle, transparent 56%, #000 57%); }
.week { display: flex; justify-content: space-between; margin-top: 8px; }
.week span { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 700; color: #fff; }

section { padding: 64px 0; }
section.alt { background: var(--bg-alt); }
section h2 { font-size: clamp(28px, 4vw, 38px); letter-spacing: -0.03em; margin: 0 0 10px; line-height: 1.15; }
section .sub { color: var(--muted); margin: 0 0 36px; max-width: 640px; }
.features { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.feature .icon { font-size: 26px; }
.feature h3 { margin: 8px 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.step { position: relative; padding: 22px 22px 22px 70px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; left: 22px; top: 20px; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; display: grid; place-items: center; }
.step h3 { margin: 0 0 4px; font-size: 17px; } .step p { margin: 0; color: var(--muted); font-size: 15px; }

.login { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 720px) { .login { grid-template-columns: 1fr; } }
.login .box { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 26px; }
.login .box h3 { margin: 0 0 6px; }
.login .box p { color: var(--muted); margin: 0 0 18px; font-size: 15px; }

.page { padding: 48px 0 72px; }
.page h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.03em; margin: 0 0 6px; }
.page .updated { color: var(--muted); margin: 0 0 32px; font-size: 15px; }
.page h2 { font-size: 22px; margin: 36px 0 8px; letter-spacing: -0.01em; }
.page h3 { font-size: 18px; margin: 22px 0 6px; }
.page li { margin: 4px 0; }
.note { background: var(--accent-soft); border-radius: 14px; padding: 14px 18px; font-size: 15px; }

details.faq { border-bottom: 1px solid var(--line); padding: 16px 0; }
details.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--accent); font-size: 24px; line-height: 1; }
details.faq[open] summary::after { content: "–"; }
details.faq p, details.faq ul { color: var(--muted); margin: 10px 0 0; }
.faq-group { margin-top: 36px; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }

form.contact { display: grid; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 26px; }
form.contact label { display: grid; gap: 6px; font-weight: 600; font-size: 15px; }
form.contact input, form.contact select, form.contact textarea { font: inherit; font-weight: 400; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; width: 100%; }
form.contact input:focus, form.contact select:focus, form.contact textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
form.contact .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { font-weight: 600; }
.form-msg.ok { color: var(--accent); } .form-msg.err { color: #d93a3a; }

footer.site { border-top: 1px solid var(--line); padding: 36px 0; color: var(--muted); font-size: 15px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 18px; margin-left: auto; }
footer.site a { color: var(--muted); text-decoration: none; } footer.site a:hover { color: var(--text); }