/* ALC — Athle Labs Co · Site stylesheet
   Brand: navy #0F2D51 · teal #5DBFA3 · deep teal #1D9E75 · logo blue #1A5EA5 · Inter */

:root {
  --navy: #0F2D51;
  --teal: #5DBFA3;
  --teal-deep: #1D9E75;
  --blue: #1A5EA5;
  --ink: #16283C;
  --slate: #55677A;
  --paper: #FFFFFF;
  --tint: #F2F6F8;
  --line: #DCE5EA;
  --maxw: 1060px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky; top: 0; z-index: 50;
}
.nav {
  display: flex; align-items: center; gap: 20px;
  padding: 14px 0; flex-wrap: wrap;
}
.nav .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.nav .brand img { height: 40px; width: auto; display: block; }
.nav .brand span {
  font-weight: 700; color: var(--navy); font-size: 15px; letter-spacing: .04em;
}
.nav a.link {
  color: var(--navy); text-decoration: none; font-size: 14.5px; font-weight: 500;
  padding: 6px 2px; border-bottom: 2px solid transparent;
}
.nav a.link:hover, .nav a.link[aria-current="page"] { border-bottom-color: var(--teal); }
.nav a.cta {
  background: var(--navy); color: #fff; text-decoration: none;
  padding: 10px 18px; border-radius: 4px; font-size: 14.5px; font-weight: 600;
}
.nav a.cta:hover { background: var(--teal-deep); }

/* ---------- Type system ---------- */
.eyebrow {
  font-size: 12.5px; font-weight: 600; letter-spacing: .28em;
  text-transform: uppercase; color: var(--teal-deep); margin-bottom: 14px;
}
h1 { font-size: clamp(30px, 4.6vw, 46px); line-height: 1.14; color: var(--navy); font-weight: 700; letter-spacing: -0.015em; }
h2 { font-size: clamp(23px, 3vw, 30px); line-height: 1.22; color: var(--navy); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 19px; color: var(--navy); font-weight: 650; }
.lede { font-size: clamp(17px, 2vw, 19.5px); color: var(--slate); max-width: 46em; margin-top: 18px; }
p + p { margin-top: 14px; }
a { color: var(--teal-deep); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
section.tint { background: var(--tint); }
section.navy { background: var(--navy); color: #E8F0F2; }
section.navy h2, section.navy h3 { color: #fff; }
section.navy .eyebrow { color: var(--teal); }
.section-head { max-width: 46em; margin-bottom: 36px; }
.section-head p { color: var(--slate); margin-top: 12px; }
section.navy .section-head p { color: #C4D4DE; }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 80px; }
.hero .rule { width: 64px; height: 3px; background: var(--teal); margin-bottom: 26px; }
.hero .actions { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.hero .note { margin-top: 22px; font-size: 14px; color: var(--slate); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; background: var(--navy); color: #fff; text-decoration: none;
  padding: 14px 26px; border-radius: 4px; font-weight: 600; font-size: 15.5px;
  border: none; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--teal-deep); }
.btn.ghost { background: transparent; color: var(--navy); border: 1.5px solid var(--navy); }
.btn.ghost:hover { color: var(--teal-deep); border-color: var(--teal-deep); background: transparent; }
section.navy .btn { background: var(--teal); color: var(--navy); }
section.navy .btn:hover { background: #fff; }
.reassure { font-size: 14px; color: var(--slate); font-style: italic; margin-top: 14px; }
section.navy .reassure { color: #B9CCD8; }

/* ---------- Cards & grids ---------- */
.grid { display: grid; gap: 22px; }
.grid.c2 { grid-template-columns: repeat(2, 1fr); }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) { .grid.c3, .grid.c5 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid.c2, .grid.c3, .grid.c5 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper); border: 1px solid var(--line);
  border-top: 3px solid var(--teal); border-radius: 6px; padding: 26px 24px;
}
.card h3 { margin-bottom: 10px; font-size: 17px; }
.card p { font-size: 15px; color: var(--slate); }
.card .num {
  font-size: 13px; font-weight: 700; letter-spacing: .22em; color: var(--teal-deep); margin-bottom: 12px;
}

/* ---------- Evidence blocks ---------- */
.authority {
  border: 1px solid var(--line); border-left: 4px solid var(--teal);
  border-radius: 6px; padding: 30px 28px; background: var(--paper); margin-bottom: 26px;
}
.authority .src { font-size: 13.5px; color: var(--slate); margin-top: 16px; }
.authority .src a { color: var(--teal-deep); }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; gap: 0; border-left: 2px solid var(--line); }
.step { position: relative; padding: 0 0 34px 34px; }
.step:last-child { padding-bottom: 0; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; left: -21px; top: -2px;
  background: var(--navy); color: #fff; font-size: 12.5px; font-weight: 700;
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; letter-spacing: .06em;
}
.step h3 { margin-bottom: 6px; padding-top: 6px; }
.step p { color: var(--slate); font-size: 15.5px; max-width: 44em; }

/* ---------- Maturity scale (signature) ---------- */
.scale { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 26px 0 8px; }
.scale .band { padding: 18px 16px 16px; border-radius: 5px; }
.scale .band strong { display: block; font-size: 15px; margin-bottom: 6px; }
.scale .band span { font-size: 13.5px; line-height: 1.5; display: block; }
.band.b1 { background: #EDF1F4; color: var(--ink); }
.band.b2 { background: #DCEEE8; color: var(--ink); }
.band.b3 { background: #9FD9C5; color: var(--navy); }
.band.b4 { background: var(--navy); color: #fff; }
@media (max-width: 720px) { .scale { grid-template-columns: 1fr 1fr; } }

/* ---------- Dimensions (framework) ---------- */
details.dim {
  border: 1px solid var(--line); border-radius: 6px; margin-bottom: 14px;
  background: var(--paper); overflow: hidden;
}
details.dim summary {
  cursor: pointer; padding: 22px 24px; list-style: none;
  display: flex; gap: 18px; align-items: baseline;
}
details.dim summary::-webkit-details-marker { display: none; }
details.dim summary .dnum { font-weight: 700; letter-spacing: .2em; color: var(--teal-deep); font-size: 13px; white-space: nowrap; }
details.dim summary .dtitle { font-weight: 650; color: var(--navy); font-size: 17.5px; }
details.dim summary .dq { color: var(--slate); font-size: 14.5px; display: block; margin-top: 4px; font-weight: 400; }
details.dim[open] summary { border-bottom: 1px solid var(--line); }
details.dim .dbody { padding: 22px 24px 26px; }
.dbody .deflabel { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--teal-deep); font-weight: 600; margin-bottom: 6px; }
.dbody p.def { color: var(--slate); font-size: 15.5px; margin-bottom: 18px; }
.stds { display: grid; gap: 12px; }
.stds .std { display: flex; gap: 14px; font-size: 15px; }
.stds .std .id { font-weight: 700; color: var(--navy); min-width: 34px; }
.stds .std p { color: var(--ink); }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--slate); font-weight: 600; }

/* ---------- FAQ ---------- */
details.faq { border-bottom: 1px solid var(--line); }
details.faq summary {
  cursor: pointer; padding: 22px 4px; list-style: none;
  font-weight: 600; color: var(--navy); font-size: 17px;
  display: flex; justify-content: space-between; gap: 18px; align-items: baseline;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--teal-deep); font-size: 22px; font-weight: 400; }
details.faq[open] summary::after { content: "–"; }
details.faq .fbody { padding: 0 4px 24px; color: var(--slate); font-size: 15.5px; max-width: 48em; }

/* ---------- Form ---------- */
form.apply { max-width: 640px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-weight: 600; color: var(--navy); font-size: 15px; margin-bottom: 8px; }
.field .hint { font-weight: 400; color: var(--slate); font-size: 13.5px; margin-left: 6px; }
input[type="text"], input[type="email"], select, textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 5px;
  font-family: inherit; font-size: 15.5px; color: var(--ink); background: #fff;
}
input:focus, select:focus, textarea:focus, .btn:focus, a:focus, summary:focus {
  outline: 3px solid rgba(93,191,163,.55); outline-offset: 2px;
}
fieldset { border: none; }
fieldset legend { font-weight: 600; color: var(--navy); font-size: 15px; margin-bottom: 10px; }
.checks { display: grid; gap: 10px; }
.checks label { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; font-weight: 400; color: var(--ink); }
.checks input { margin-top: 4px; }
.consent { font-size: 13.5px; color: var(--slate); margin-top: 18px; max-width: 44em; }

/* ---------- Footer ---------- */
footer.site {
  background: var(--navy); color: #B9CCD8; padding: 54px 0 40px; font-size: 14px;
}
footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; }
@media (max-width: 720px) { footer .cols { grid-template-columns: 1fr; } }
footer h4 { color: #fff; font-size: 13px; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 14px; }
footer a { color: #DCEAF0; text-decoration: none; display: block; padding: 3px 0; }
footer a:hover { color: var(--teal); }
footer .mark { font-weight: 700; color: #fff; font-size: 16px; letter-spacing: .03em; margin-bottom: 10px; }
footer .tag { color: var(--teal); font-size: 13.5px; margin-bottom: 18px; }
footer .legal { border-top: 1px solid rgba(255,255,255,.14); margin-top: 40px; padding-top: 22px; font-size: 12.5px; color: #8FA6B5; }

/* ---------- Utility ---------- */
.quiet { color: var(--slate); font-size: 14.5px; }
.center { text-align: center; }
.mt { margin-top: 28px; }
ul.plain { list-style: none; display: grid; gap: 10px; }
ul.plain li { padding-left: 22px; position: relative; font-size: 15.5px; }
ul.plain li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 10px; border-radius: 50%; background: var(--teal); }