/* =========================================================
   VITALIS - design tokens (v2)
   A warm-clinical aesthetic: deep emerald "cover" moments,
   soft ivory content, gilded dial gauges.
   ========================================================= */

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

:root{
  --bg:         #F6F8F4;
  --bg-panel:   #FFFFFF;
  --line:       #E2E8DF;
  --ink:        #142A21;
  --ink-soft:   #52655B;

  --emerald-900:#0B2E24;
  --emerald-800:#0F3D2F;
  --emerald-700:#15543F;
  --teal:       #1B8F72;
  --teal-dark:  #116953;
  --gold:       #E7A84D;
  --gold-soft:  #F4CE96;
  --coral:      #E4633E;

  --shadow-sm: 0 1px 2px rgba(11,46,36,0.06);
  --shadow-md: 0 8px 24px rgba(11,46,36,0.09);
  --shadow-lg: 0 18px 48px rgba(11,46,36,0.16);

  --font-display: 'Roboto', system-ui, sans-serif;
  --font-body: 'Roboto', system-ui, sans-serif;
  --font-mono: 'Roboto', system-ui, sans-serif;

  --radius: 16px;
  --max: 1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:
    radial-gradient(circle at 1px 1px, rgba(11,46,36,0.07) 1px, transparent 0) 0 0/26px 26px,
    linear-gradient(180deg, #FBFCF9 0%, var(--bg) 380px, var(--bg) 100%);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

h1,h2,h3,h4{ font-family:var(--font-display); margin:0 0 .4em; font-weight:700; letter-spacing:-0.02em; }
h1{ font-size:clamp(2.3rem,5vw,3.8rem); line-height:1.02; font-weight:800; }
h2{ font-size:clamp(1.55rem,2.6vw,2.2rem); }
h3{ font-size:1.2rem; font-weight:700; }
p{ margin:0 0 1em; color:var(--ink-soft); }
a{ color:var(--teal-dark); text-decoration:none; }
a:hover{ text-decoration:underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible{
  outline:2px solid var(--teal); outline-offset:2px;
}

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

/* ---------- utility top bar ---------- */
.topbar{ background:var(--emerald-900); }
.topbar .wrap{ display:flex; gap:6px; height:42px; align-items:center; justify-content:flex-end; }
.topbar a{
  color:rgba(255,255,255,0.75); font-size:.86rem; font-weight:600; letter-spacing:.01em;
  padding:7px 14px; border-radius:999px; transition:background .18s ease, color .18s ease;
}
.topbar a:hover{ background:rgba(255,255,255,0.14); color:#FFFFFF; text-decoration:none; }
@media (max-width:560px){
  .topbar .wrap{ justify-content:center; flex-wrap:wrap; height:auto; padding:8px 14px; gap:4px; }
}

/* ---------- header ---------- */
.site-header{
  border-bottom:1px solid var(--line);
  background:rgba(246,248,244,0.82);
  backdrop-filter:blur(10px);
  position:sticky; top:0; z-index:40;
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; height:72px; }
.logo{ font-family:var(--font-display); font-weight:600; font-size:1.35rem; color:var(--ink); display:flex; align-items:center; gap:9px; }
.logo:hover{ text-decoration:none; }
.logo .dot{ width:10px; height:10px; border-radius:50%; background:linear-gradient(135deg, var(--gold), var(--teal)); box-shadow:0 0 0 4px rgba(27,143,114,0.14); }
.logo .logo-img{ height:38px; width:auto; display:block; }
nav.primary{ display:flex; gap:6px; }
nav.primary a{
  color:var(--ink-soft); font-weight:600; font-size:.94rem;
  padding:8px 15px; border-radius:999px; transition:background .18s ease, color .18s ease;
}
nav.primary a:hover{ color:var(--teal-dark); background:rgba(27,143,114,0.10); text-decoration:none; }
.nav-toggle{ display:none; }

/* ---------- hero (dark cover moment) ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:52px 0 40px;
  background:
    radial-gradient(680px 420px at 82% -10%, rgba(231,168,77,0.30), transparent 60%),
    radial-gradient(600px 500px at -5% 110%, rgba(27,143,114,0.55), transparent 60%),
    linear-gradient(160deg, var(--emerald-900) 0%, var(--emerald-800) 52%, var(--emerald-700) 100%);
  color:#F3F6F1;
}
.hero::before{
  content:'';
  position:absolute; inset:0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.10) 1px, transparent 0);
  background-size: 22px 22px;
  mix-blend-mode:overlay;
  pointer-events:none;
}
.hero::after{
  content:'';
  position:absolute; inset:-20%;
  background:
    radial-gradient(340px 340px at 20% 30%, rgba(231,168,77,0.28), transparent 65%),
    radial-gradient(420px 420px at 85% 70%, rgba(27,143,114,0.35), transparent 65%);
  filter:blur(10px);
  animation: blobDrift 16s ease-in-out infinite alternate;
  pointer-events:none;
}
@keyframes blobDrift{
  0%   { transform: translate(0,0) scale(1); }
  50%  { transform: translate(3%,-4%) scale(1.06); }
  100% { transform: translate(-3%,3%) scale(0.98); }
}
@media (prefers-reduced-motion: reduce){ .hero::after{ animation:none; } }
.hero .wrap{ z-index:1; }
.hero h1{ color:#FFFFFF; animation: fadeInUp .7s cubic-bezier(.2,.8,.2,1) both; }
.hero .eyebrow{ animation: fadeInUp .6s cubic-bezier(.2,.8,.2,1) both; }
.hero p.lead{ color:rgba(243,246,241,0.82); animation: fadeInUp .7s .08s cubic-bezier(.2,.8,.2,1) both; }
.hero .cta-row{ animation: fadeInUp .7s .16s cubic-bezier(.2,.8,.2,1) both; }
.hero .dial-wrap{ animation: fadeInUp .8s .1s cubic-bezier(.2,.8,.2,1) both; }
@keyframes fadeInUp{
  from{ opacity:0; transform:translateY(16px); }
  to{ opacity:1; transform:translateY(0); }
}
@media (prefers-reduced-motion: reduce){
  .hero h1, .hero .eyebrow, .hero p.lead, .hero .cta-row, .hero .dial-wrap{ animation:none; }
}

/* ---------- scroll-reveal ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .6s cubic-bezier(.2,.8,.2,1), transform .6s cubic-bezier(.2,.8,.2,1); }
.reveal.in-view{ opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:start; }
.eyebrow{
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--gold-soft); display:flex; align-items:center; gap:8px; margin-bottom:10px;
}
.hero p.lead{ font-size:1.12rem; max-width:46ch; }
.hero .cta-row{ display:flex; gap:14px; margin-top:28px; flex-wrap:wrap; }

/* calculator pages get a shorter, quieter hero */
.calc-page .hero{ padding:40px 0 30px; }
.calc-page .hero h1{ margin-bottom:.2em; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-body); font-weight:600; font-size:.96rem;
  padding:13px 24px; border-radius:10px; border:1.5px solid transparent; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
}
.btn:hover{ text-decoration:none; }
.btn-primary{ background:linear-gradient(135deg, var(--gold) 0%, #DE8F3A 100%); color:#241505; box-shadow:0 10px 24px rgba(231,168,77,0.35); position:relative; overflow:hidden; }
.btn-primary::after{
  content:''; position:absolute; inset:0; transform:translateX(-120%);
  background:linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.55) 50%, transparent 70%);
}
.btn-primary:hover::after{ transform:translateX(120%); transition:transform .7s ease; }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 30px rgba(231,168,77,0.45); }
.btn-ghost{ background:rgba(255,255,255,0.06); border-color:rgba(255,255,255,0.5); color:#FFFFFF; }
.btn-ghost:hover{ background:rgba(255,255,255,0.14); }

/* ---------- dial / gauge, the signature element ---------- */
.dial-wrap{ display:flex; justify-content:center; align-items:center; }
.dial{ width:100%; max-width:320px; filter:drop-shadow(0 6px 18px rgba(11,46,36,0.18)); }
.hero .dial{ filter:drop-shadow(0 10px 30px rgba(0,0,0,0.35)); }
.dial .needle{ transform-origin:160px 160px; transition:transform .8s cubic-bezier(.2,.8,.2,1); }
.dial .tick{ stroke:var(--ink); opacity:.25; }
.hero .dial .tick{ stroke:#FFFFFF; opacity:.35; }
.dial .arc-bg{ fill:none; stroke:var(--line); stroke-width:14; }
.hero .dial .arc-bg{ stroke:rgba(255,255,255,0.14); }
.dial .arc-fg{ fill:none; stroke:url(#dialGradient); stroke-width:14; stroke-linecap:round; transition:stroke-dasharray .8s ease; }
.dial .hub{ fill:var(--ink); }
.hero .dial .hub{ fill:#FFFFFF; }
.dial .needle{ stroke:var(--ink); }
.hero .dial .needle{ stroke:#FFFFFF; }

/* ---------- lab-tag tool cards ---------- */
.tool-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin:38px 0; }
.tool-card{
  background:
    linear-gradient(var(--bg-panel), var(--bg-panel)) padding-box,
    linear-gradient(135deg, rgba(27,143,114,0.35), rgba(231,168,77,0.35)) border-box;
  border:1.5px solid transparent; border-radius:var(--radius);
  padding:24px 24px 22px; box-shadow:var(--shadow-sm); position:relative; overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.8,.2,1), box-shadow .22s ease;
}
.tool-card::after{
  content:''; position:absolute; top:-40%; right:-30%; width:60%; padding-bottom:60%; border-radius:50%;
  background:radial-gradient(circle, rgba(231,168,77,0.16), transparent 70%);
  opacity:0; transition:opacity .3s ease; z-index:0; pointer-events:none;
}
.tool-card::before{
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--teal), var(--gold));
  transform:scaleX(0); transform-origin:left; transition:transform .3s ease;
}
.tool-card:hover{ transform:translateY(-6px) scale(1.01); box-shadow:var(--shadow-md); text-decoration:none; }
.tool-card:hover::before{ transform:scaleX(1); }
.tool-card:hover::after{ opacity:1; }
.tool-card .tag{
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.08em; color:var(--teal-dark);
  background:rgba(27,143,114,0.10); display:inline-block; padding:4px 9px; border-radius:5px; margin-bottom:13px;
  position:relative; z-index:1;
}
.tool-card h3{ color:var(--ink); margin-bottom:6px; position:relative; z-index:1; }
.tool-card p{ font-size:.93rem; margin-bottom:0; position:relative; z-index:1; }
.tool-card .go{ position:absolute; top:22px; right:22px; font-size:1.1rem; color:var(--line); transition:color .18s, transform .18s; z-index:1; }
.tool-card:hover .go{ color:var(--gold); transform:translate(2px,-2px); }

/* ---------- section ---------- */
.section{ padding:46px 0; }
.section-head{ max-width:62ch; margin-bottom:26px; }
.section.alt{ background:linear-gradient(180deg, var(--bg-panel), #F3F7F1); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

/* ---------- calculator layout ---------- */
.calc-shell{ display:grid; grid-template-columns:1fr 1fr; gap:28px; margin:32px 0 60px; align-items:start; }
.panel{
  background:
    linear-gradient(var(--bg-panel), var(--bg-panel)) padding-box,
    linear-gradient(135deg, rgba(27,143,114,0.28), rgba(231,168,77,0.28)) border-box;
  border:1.5px solid transparent; border-radius:var(--radius);
  padding:30px; box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease, transform .25s ease;
}
.panel:hover{ box-shadow:var(--shadow-md); transform:translateY(-2px); }
.panel h2{ font-size:1.12rem; margin-bottom:20px; display:flex; align-items:center; gap:9px; font-family:var(--font-body); font-weight:700; }
.panel h2::before{ content:''; width:9px; height:9px; background:var(--gold); border-radius:3px; }

.field{ margin-bottom:17px; }
.field label{ display:block; font-weight:600; font-size:.88rem; margin-bottom:7px; color:var(--ink); }
.field .hint{ font-size:.78rem; color:var(--ink-soft); margin-top:5px; }
.input-row{ display:flex; gap:8px; }
input[type=number], input[type=date], select{
  width:100%; padding:12px 13px; border:1.5px solid var(--line); border-radius:9px;
  font-family:var(--font-mono); font-size:1rem; background:var(--bg); color:var(--ink);
  transition:border-color .15s ease, box-shadow .15s ease;
}
input:hover, select:hover{ border-color:#C9D5C6; }
input:focus, select:focus{ border-color:var(--teal); box-shadow:0 0 0 4px rgba(27,143,114,0.14); }
select{ font-family:var(--font-body); }
.unit-toggle{ display:flex; border:1.5px solid var(--ink); border-radius:9px; overflow:hidden; flex-shrink:0; }
.unit-toggle button{
  border:none; background:var(--bg-panel); color:var(--ink); font-family:var(--font-mono); font-size:.82rem;
  padding:0 13px; cursor:pointer; font-weight:600; height:38px;
}
.unit-toggle button.active{ background:var(--ink); color:#FFFFFF; }
.radio-row{ display:flex; gap:10px; }
.radio-row label{
  flex:1; text-align:center; border:1.5px solid var(--line); border-radius:9px; padding:10px 6px;
  cursor:pointer; font-weight:600; font-size:.88rem; color:var(--ink-soft);
}
.radio-row input{ display:none; }
.radio-row input:checked + span{ color:#FFFFFF; }
.radio-row label:has(input:checked){ background:var(--ink); border-color:var(--ink); color:#FFFFFF; }

.result-panel{
  text-align:center;
  background:
    linear-gradient(180deg, var(--bg-panel), #FBFDFA) padding-box,
    linear-gradient(135deg, rgba(27,143,114,0.28), rgba(231,168,77,0.28)) border-box;
}
.readout-main{ font-family:var(--font-mono); font-weight:700; font-size:3.1rem; color:var(--ink); line-height:1; margin:12px 0 4px; background:linear-gradient(135deg, var(--ink), var(--teal-dark)); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.readout-unit{ font-family:var(--font-mono); font-size:1rem; color:var(--ink-soft); }
.readout-tag{
  display:inline-block; margin-top:14px; padding:7px 16px; border-radius:20px; font-weight:600; font-size:.85rem;
  background:linear-gradient(135deg, rgba(27,143,114,0.16), rgba(27,143,114,0.08)); color:var(--teal-dark);
}
.readout-tag.warn{ background:linear-gradient(135deg, rgba(231,168,77,0.26), rgba(231,168,77,0.12)); color:#8A5A0F; }
.readout-tag.alert{ background:linear-gradient(135deg, rgba(228,99,62,0.22), rgba(228,99,62,0.1)); color:var(--coral); }
.result-grid{ display:grid; grid-template-columns:1fr 1fr; gap:11px; margin-top:22px; text-align:left; }
.result-grid .cell{
  background:linear-gradient(160deg, var(--bg), #FFFFFF); border:1px solid var(--line); border-radius:9px; padding:13px 15px;
  transition:transform .18s ease, border-color .18s ease;
}
.result-grid .cell:hover{ transform:translateY(-2px); border-color:rgba(27,143,114,0.35); }
.result-grid .cell .k{ font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); font-weight:600; }
.result-grid .cell .v{ font-family:var(--font-mono); font-weight:700; font-size:1.18rem; margin-top:3px; }
.placeholder-note{ color:var(--ink-soft); font-size:.9rem; margin-top:16px; }

@keyframes resultPop{
  from{ opacity:0; transform:translateY(10px) scale(.98); }
  to{ opacity:1; transform:translateY(0) scale(1); }
}
[id$="-results"].reveal{ animation:resultPop .5s cubic-bezier(.2,.8,.2,1) both; opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  [id$="-results"].reveal{ animation:none; }
}

/* ---------- FAQ / accordion ---------- */
.faq-item{ border-bottom:1px solid var(--line); padding:17px 0; }
.faq-item summary{ cursor:pointer; font-weight:600; font-family:var(--font-display); font-size:1.05rem; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:'+'; font-size:1.5rem; color:var(--teal); transition:transform .2s; flex-shrink:0; }
.faq-item[open] summary::after{ transform:rotate(45deg); }
.faq-item p{ margin-top:11px; }

/* ---------- related tools strip ---------- */
.related{ display:flex; gap:14px; flex-wrap:wrap; }
.related a{
  border:1.5px solid var(--line); border-radius:10px; padding:11px 18px; font-weight:600;
  color:var(--ink); background:var(--bg-panel); font-size:.9rem; transition:border-color .18s, transform .18s, background .18s;
}
.related a:hover{
  border-color:transparent; color:var(--teal-dark); text-decoration:none; transform:translateY(-2px);
  background:linear-gradient(135deg, rgba(27,143,114,0.10), rgba(231,168,77,0.10));
}

/* ---------- footer ---------- */
footer{ border-top:1px solid var(--line); padding:38px 0; margin-top:24px; background:var(--bg-panel); }
footer .wrap{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:16px; align-items:center; }
footer p{ margin:0; font-size:.85rem; }
footer nav{ display:flex; gap:18px; }
footer nav a{ font-size:.85rem; color:var(--ink-soft); font-weight:600; }

/* ---------- misc ---------- */
.disclaimer{
  font-size:.82rem; color:var(--ink-soft); background:var(--bg-panel); border:1px solid var(--line);
  border-left:3px solid var(--gold); border-radius:0 9px 9px 0; padding:13px 17px; margin-top:24px;
}
.kicker-list{ list-style:none; padding:0; margin:0; }
.kicker-list li{ padding:11px 0; border-bottom:1px solid var(--line); display:flex; gap:12px; }
.kicker-list li .n{ font-family:var(--font-mono); color:var(--teal-dark); font-weight:700; flex-shrink:0; }

/* ---------- segmented health-range gauge (BMI / Body Fat) ---------- */
.gauge{ width:100%; max-width:260px; filter:drop-shadow(0 8px 20px rgba(11,46,36,0.16)); }
.gauge-seg{ fill:none; stroke-width:26; stroke-linecap:butt; }
.gauge .needle{ stroke:var(--ink); stroke-width:4; stroke-linecap:round; transform-origin:160px 170px; transition:transform .9s cubic-bezier(.2,.8,.2,1); }
.gauge .hub{ fill:var(--ink); stroke:#FFFFFF; stroke-width:3; }
.gauge-legend{ display:flex; flex-wrap:wrap; gap:8px 14px; justify-content:center; margin-top:6px; }
.gauge-legend span{ display:inline-flex; align-items:center; gap:6px; font-size:.72rem; font-weight:600; color:var(--ink-soft); }
.gauge-legend i{ width:9px; height:9px; border-radius:50%; display:inline-block; flex-shrink:0; }

/* ---------- trust bar ---------- */
.trust-bar{ display:flex; flex-wrap:wrap; gap:0; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--bg-panel); box-shadow:var(--shadow-sm); }
.trust-bar .item{ flex:1 1 160px; padding:22px 20px; text-align:center; border-right:1px solid var(--line); }
.trust-bar .item:last-child{ border-right:none; }
.trust-bar .item .num{ font-family:var(--font-body); font-weight:800; font-size:1.7rem; color:var(--teal-dark); }
.trust-bar .item .lbl{ font-size:.8rem; color:var(--ink-soft); font-weight:600; margin-top:2px; }

/* ---------- how-it-works steps ---------- */
.steps-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:8px; }
.step-card{ background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius); padding:26px 22px; box-shadow:var(--shadow-sm); position:relative; }
.step-card .step-num{
  width:36px; height:36px; border-radius:10px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, var(--teal), var(--gold)); color:#fff; font-weight:800; font-family:var(--font-body);
  margin-bottom:14px; font-size:1rem;
}
.step-card h3{ margin-bottom:6px; }
.step-card p{ font-size:.92rem; margin-bottom:0; }

@media (max-width:860px){
  .steps-row{ grid-template-columns:1fr; }
  .trust-bar{ flex-direction:column; }
  .trust-bar .item{ border-right:none; border-bottom:1px solid var(--line); }
  .trust-bar .item:last-child{ border-bottom:none; }
}

/* ---------- simple content pages (about/contact/disclaimer/terms) ---------- */
.content-page p, .content-page li{ color:var(--ink-soft); }
.content-page h2{ margin-top:1.4em; }
.contact-card{
  background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; box-shadow:var(--shadow-sm); display:flex; align-items:center; gap:16px; margin:22px 0;
}
.contact-card .ic{
  width:44px; height:44px; border-radius:10px; flex-shrink:0;
  background:linear-gradient(135deg, var(--teal), var(--gold)); display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:1.2rem;
}

/* ---------- footer legal row ---------- */
.footer-legal{ border-top:1px solid var(--line); margin-top:18px; padding-top:18px; }
.footer-legal .wrap{ justify-content:center; gap:22px; }
.footer-legal a{ font-size:.82rem; color:var(--ink-soft); font-weight:600; }
.footer-legal a:hover{ color:var(--teal-dark); }

@media (max-width:860px){
  .hero-grid{ grid-template-columns:1fr; }
  .tool-grid{ grid-template-columns:1fr 1fr; }
  .calc-shell{ grid-template-columns:1fr; }
  nav.primary{ display:none; }
}
@media (max-width:560px){
  .tool-grid{ grid-template-columns:1fr; }
  .result-grid{ grid-template-columns:1fr 1fr; }
}