/* ============================================================
   FIT BY SCIENCE - MACRO CALCULATOR
   Consolidated design system. One rule per selector, organized
   by component. Responsive rules sit directly under the
   component they belong to.
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --o: #0B0D0F;   /* Obsidian - page background */
  --c: #15181B;   /* Carbon - surfaces / cards */
  --b: #F4F2ED;   /* Bone - primary text on dark */
  --s: #A7A8A5;   /* secondary text on dark */
  --blue: #2563EB; /* Science Blue - accent only */

  --hairline: rgba(244,242,237,.10);
  --hairline-strong: rgba(244,242,237,.18);
  --surface-hover: #1B1F23;
  --ease-premium: cubic-bezier(.22,1,.36,1);

  --d: "Archivo Narrow","Arial Narrow",sans-serif; /* display */
  --f: "Inter",system-ui,sans-serif;                /* body/UI */

  /* Editorial type scale, shared across the whole experience */
  --type-kicker: .70rem;
  --type-caption: .75rem;
  --type-body: .96rem;
  --type-card-title: 1.18rem;
  --type-section: clamp(2.55rem,4.3vw,3.65rem);     /* primary section heading */
  --type-section-sm: clamp(2.05rem,3.6vw,2.85rem);  /* secondary section heading */

  --result-gap: clamp(42px,6vw,68px);
}

*{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  min-height:100svh;
  background:
    radial-gradient(circle at 82% 8%, rgba(37,99,235,.07), transparent 26rem),
    var(--o);
  color:var(--b);
  font-family:var(--f);
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}

/* ---------- Base typography ---------- */
h1,h2{
  font-family:var(--d);
  letter-spacing:-.035em;
  line-height:.88;
  margin:12px 0 22px;
  text-wrap:balance;
}
h1{ font-size:clamp(3.8rem,17vw,7rem); }
h2{ font-size:clamp(3.1rem,14vw,5.6rem); }
p{ margin:0; color:var(--s); line-height:1.65; }

/* Kicker labels: header wordmark subtitle + every section eyebrow */
header span,
em{
  font-style:normal;
  letter-spacing:.15em;
  color:var(--s);
}
em{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:var(--type-kicker);
  font-weight:600;
}
em::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--blue);
  flex:none;
}

/* ---------- Header ---------- */
header{
  height:72px;
  position:sticky;
  top:0;
  z-index:5;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-inline:max(20px, calc((100vw - 1180px) / 2));
  background:#0b0d0fee;
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--hairline);
}
header b{
  font-family:var(--d);
  font-size:1.04rem;
  letter-spacing:.08em;
}
header span{
  font-size:.68rem;
  letter-spacing:.14em;
  opacity:.82;
}
@media (max-width:600px){
  header{ height:62px; }
  header span{ font-size:.58rem; }
}

/* ---------- Layout shell ---------- */
main{
  width:min(1180px,100%);
  margin:auto;
  padding:clamp(34px,5vw,72px) 20px 84px;
}
@media (max-width:600px){
  main{ padding:28px 18px 62px; }
}

#form,
#results{
  width:min(760px,100%);
  margin-inline:auto;
}
@media (min-width:900px){
  #form{ width:min(760px,100%); }
}

/* ---------- Progress ---------- */
#progress{
  width:min(760px,100%);
  margin:0 auto clamp(48px,7vw,76px);
  color:var(--s);
}
#progress small{
  display:block;
  margin-bottom:10px;
  letter-spacing:.16em;
  font-weight:600;
}
#bar{
  display:block;
  width:25%;
  height:2px;
  background:var(--blue);
  box-shadow:0 0 18px rgba(37,99,235,.20);
  transform-origin:left center;
  transition:width .25s ease;
}
#progress:after{
  content:"";
  display:block;
  height:2px;
  margin-top:-2px;
  position:relative;
  z-index:-1;
  background:#ffffff17;
}
@media (max-width:600px){
  #progress{ margin-bottom:40px; }
}

/* ---------- Form steps (shared) ---------- */
.step{ animation:fbsStepIn .52s var(--ease-premium) both; }
.step > em{ margin-bottom:4px; }
.step h1,
.step h2{
  max-width:680px;
  margin-top:12px;
  margin-bottom:22px;
}
.step > p{
  max-width:570px;
  font-size:1.03rem;
  margin-bottom:32px;
}
@media (max-width:600px){
  h1{ font-size:clamp(3.55rem,18vw,5rem); }
  h2{ font-size:clamp(3rem,15vw,4.35rem); }
  .step > p{ font-size:.96rem; line-height:1.6; margin-bottom:26px; }
}

.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin:14px 0;
}
@media (max-width:430px){
  .grid{ grid-template-columns:1fr; }
}

label,
legend{ font-size:.76rem; color:var(--s); }
fieldset{ border:0; padding:0; margin:0; }

input[type=number]{
  display:block;
  width:100%;
  min-height:52px;
  margin-top:8px;
  padding:14px;
  background:var(--c);
  border:1px solid var(--hairline-strong);
  border-radius:2px;
  color:var(--b);
  font:500 1rem var(--f);
  outline:0;
  transition:border-color .18s ease, background .18s ease;
  /* No native spin buttons anywhere in the dark system */
  appearance:textfield;
  -moz-appearance:textfield;
}
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button{
  -webkit-appearance:none;
  margin:0;
}
input[type=number]::placeholder{
  color:#74777a;
  opacity:1;
}
input[type=number]:hover{ border-color:rgba(244,242,237,.30); }
input[type=number]:focus{ background:#181c20; border-color:var(--blue); }
button:focus-visible,
input:focus-visible,
summary:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:3px;
}

/* Units toggle (US / Metric) */
.units{
  display:flex;
  width:max-content;
  gap:3px;
  margin:15px 0 22px;
  padding:3px;
  border:1px solid var(--hairline);
  background:rgba(255,255,255,.025);
}
.units button{
  min-height:40px;
  padding-inline:17px;
  border:0;
  background:transparent;
  color:var(--s);
  font:600 .72rem var(--f);
  letter-spacing:.08em;
  cursor:pointer;
  transition:background .18s ease, color .18s ease, border-color .18s ease;
}
.units .active{
  color:var(--b);
  background:rgba(37,99,235,.12);
  border:1px solid var(--blue);
  box-shadow:inset 0 0 0 1px rgba(37,99,235,.25);
}

/* Segmented control (Sex, Loss pace) */
.seg{ display:flex; gap:8px; margin:15px 0 22px; }
.seg label{ flex:1; }
.seg input{ position:absolute; opacity:0; }
.seg span{
  min-height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--hairline-strong);
  color:var(--b);
  transition:background .18s ease, border-color .18s ease, transform .18s var(--ease-premium);
}
.seg label:hover span{ background:var(--surface-hover); border-color:rgba(244,242,237,.25); }
.seg input:checked + span{
  background:#191d21;
  border-color:var(--blue);
  box-shadow:inset 0 0 0 1px var(--blue);
}
.seg input:focus-visible + span{
  outline:3px solid var(--blue);
  outline-offset:3px;
  background:var(--surface-hover);
}

/* Choice cards (Activity, Training, Goal) */
.choices{ display:grid; gap:9px; margin-top:4px; }
.choices input{ position:absolute; opacity:0; }
.choices span{
  display:block;
  height:100%;
  padding:16px;
  background:var(--c);
  border:1px solid var(--hairline);
  cursor:pointer;
  transition:background .18s ease, border-color .18s ease, transform .18s var(--ease-premium);
}
.choices label:hover span{ background:var(--surface-hover); border-color:rgba(244,242,237,.25); transform:translateX(2px); }
.choices b,
.choices small{ display:block; }
.choices b{ color:var(--b); font-size:.95rem; }
.choices small{ margin-top:5px; line-height:1.4; }
.choices input:checked + span{
  background:#191d21;
  border-color:var(--blue);
  box-shadow:inset 3px 0 var(--blue);
}
.choices input:checked + span b::after{ content:"  ✓"; } /* inherits Bone from .choices b */
.choices input:focus-visible + span{
  outline:3px solid var(--blue);
  outline-offset:3px;
  background:var(--surface-hover);
}
@media (min-width:900px){
  .choices{ grid-template-columns:1fr 1fr; gap:12px; }
  .choices span{ min-height:94px; padding:20px; }
  .step[data-step="3"] .choices{ grid-template-columns:repeat(4,1fr); }
  .step[data-step="3"] .choices span{ min-height:76px; }
}
@media (max-width:600px){
  .choices span{ padding:16px 15px; }
}

/* Height: compact tactile steppers */
.height-stepper-field{
  margin:14px 0;
}
.height-stepper-field legend{
  margin-bottom:8px;
}
.height-stepper-group{
  display:grid;
  grid-template-columns:1fr 1px 1fr;
  align-items:center;
  min-height:58px;
  overflow:hidden;
  border:1px solid var(--hairline-strong);
  border-radius:2px;
  background:var(--c);
}
.height-stepper-divider{
  width:1px;
  height:32px;
  background:var(--hairline-strong);
  justify-self:center;
}
.height-stepper{
  display:grid;
  grid-template-columns:44px 1fr 44px;
  align-items:center;
  min-width:0;
  outline:0;
}
.height-stepper:focus-visible{
  box-shadow:inset 0 0 0 2px rgba(37,99,235,.55);
}
.height-stepper__button{
  width:44px;
  height:56px;
  padding:0;
  border:0;
  background:transparent;
  color:var(--s);
  font:400 1.15rem/1 var(--f);
  cursor:pointer;
}
.height-stepper__button:hover,
.height-stepper__button:focus-visible{
  background:rgba(37,99,235,.09);
  color:var(--b);
  outline:0;
}
.height-stepper__button:disabled{
  opacity:.22;
  cursor:default;
}
.height-stepper__value{
  display:flex;
  align-items:baseline;
  justify-content:center;
  gap:6px;
  min-width:0;
}
.height-stepper__value b{
  color:var(--b);
  font:700 1.18rem/1 var(--f);
}
.height-stepper__value span{
  color:var(--s);
  font-size:.7rem;
  font-weight:600;
}
.height-stepper-group:focus-within{
  border-color:var(--blue);
  box-shadow:0 0 0 2px rgba(37,99,235,.1);
}
@media(max-width:600px){
  .height-stepper-group{
    min-height:56px;
  }
  .height-stepper{
    grid-template-columns:40px 1fr 40px;
  }
  .height-stepper__button{
    width:40px;
    height:54px;
    font-size:1.12rem;
  }
  .height-stepper__value b{
    font-size:1.12rem;
  }
}

/* Loss pace */
#pace{ margin-top:25px; }
#pace > p{ color:var(--b); font-weight:500; margin-bottom:12px; }

/* Nav / error */
nav{
  display:flex;
  gap:10px;
  margin-top:38px;
  padding-top:10px;
  border-top:1px solid var(--hairline);
}
button{
  min-height:48px;
  padding:0 18px;
  border:1px solid var(--hairline-strong);
  background:transparent;
  color:var(--b);
  font:600 .72rem var(--f);
  letter-spacing:.08em;
  cursor:pointer;
  transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s var(--ease-premium);
}
button:hover{ border-color:rgba(244,242,237,.55); }
#next{ margin-left:auto; background:var(--b); color:var(--o); border-color:var(--b); }
#next:hover{ background:var(--blue); color:#fff; border-color:var(--blue); transform:translateX(2px); }
#back:hover{ transform:translateX(-2px); }
#error{ min-height:20px; padding-top:4px; margin-top:15px; color:#f0b3b3; font-size:.8rem; }
@media (max-width:600px){
  nav{
    position:sticky;
    bottom:0;
    z-index:4;
    margin-inline:-18px;
    padding:14px 18px max(14px, env(safe-area-inset-bottom));
    background:linear-gradient(180deg, rgba(11,13,15,.76), rgba(11,13,15,.98) 32%);
    backdrop-filter:blur(12px);
  }
  #next{ min-height:52px; }
}

/* ============================================================
   RESULTS
   ============================================================ */
#results{
  width:min(1040px,100%);
  animation:fbsResultsIn .7s var(--ease-premium) both;
}

/* ---- Calorie hero ---- */
.cal{
  position:relative;
  max-width:820px;
  padding:8px 0 22px;
}
.cal strong{
  display:block;
  width:max-content;
  max-width:100%;
  font:700 clamp(5.4rem,9vw,7.75rem)/.8 var(--d);
  letter-spacing:-.04em;
  background:linear-gradient(180deg, var(--b) 20%, #d9d7d2 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cal span{
  display:block;
  margin-top:14px;
  font-size:var(--type-kicker);
  letter-spacing:.14em;
  color:var(--s);
}
.cal small{
  display:block;
  margin-top:12px;
  font-size:var(--type-caption);
  color:var(--s);
}
@media (max-width:600px){
  .cal{ padding-bottom:18px; }
  .cal strong{ font-size:clamp(4.9rem,23vw,6.5rem); }
}

.simple-focus{
  max-width:820px;
  padding:16px 0 20px;
}
.simple-focus p{ max-width:590px; font-size:clamp(1rem,2vw,1.12rem); line-height:1.55; }
.simple-focus b{ color:var(--b); font-size:1.06em; }
@media (max-width:600px){
  .simple-focus{ padding:14px 0 18px; }
}

/* ---- Macro breakdown ---- */
.macros{
  display:grid;
  gap:1px;
  max-width:900px;
  margin:24px 0 62px;
  background:var(--hairline);
  border:1px solid var(--hairline);
}
.macros--simple{ grid-template-columns:repeat(4,1fr); }
.macro-card{
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:134px;
  padding:24px 22px;
  background:linear-gradient(180deg, #181c20, #14171a);
}
.macro-card b{
  font:700 clamp(2.25rem,4vw,2.85rem)/.95 var(--d);
  letter-spacing:-.025em;
  color:var(--b);
}
.macro-card span{
  display:block;
  margin-top:5px;
  color:var(--b);
  font-weight:600;
  font-size:.84rem;
}
.macro-card small{
  display:block;
  margin-top:7px;
  color:var(--s);
  font-size:var(--type-caption);
  line-height:1.4;
}
.macro-footnote{
  max-width:700px;
  margin:-40px 0 62px;
  color:var(--s);
  font-size:.82rem;
  line-height:1.5;
}
.macro-footnote b{ color:var(--b); font-weight:600; }
@media (max-width:520px){
  .macros--simple{ grid-template-columns:1fr; }
  .macro-card{
    display:grid;
    grid-template-columns:92px 1fr;
    align-items:center;
    min-height:0;
    padding:17px 15px;
  }
  .macro-card small{ grid-column:2; }
}
@media (max-width:600px){
  .macros{ margin-bottom:46px; }
  .macro-footnote{ margin:-28px 0 46px; }
}

/* ---- Shared result-section rhythm ---- */
.result-intro,
.day-builder,
.lesson{
  padding:var(--result-gap) 0;
  border-top:1px solid var(--hairline);
}
.tracking-basics{
  padding:58px 0 62px;
  border-top:1px solid var(--hairline);
}
.simple-start{ border-top:0; padding-top:0; padding-bottom:56px; }
.result-intro h2,
.day-builder h2,
.tracking-basics h2,
.lesson h2{ margin-bottom:18px; max-width:760px; }
.simple-start h2,
.day-builder h2,
.tracking-basics h2{
  font-size:var(--type-section);
  line-height:.91;
  letter-spacing:-.028em;
}
@media (max-width:600px){
  .result-intro,
  .day-builder,
  .lesson{ padding:44px 0; }
  .tracking-basics{ padding:44px 0 48px; }
  .simple-start{ padding-bottom:44px; }
  :root{ --type-section:clamp(2.45rem,12vw,3.25rem); }
}

/* ---- First week ---- */
.first-week-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  margin-top:24px;
  background:var(--hairline);
  border:1px solid var(--hairline);
}
.first-week-grid article{
  min-height:160px;
  padding:22px 22px 24px;
  background:var(--c);
}
.first-week-grid article > span{
  display:flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  margin-bottom:22px;
  border:1px solid rgba(37,99,235,.55);
  color:var(--b);
  font-size:.72rem;
  font-weight:700;
}
.first-week-grid b,
.first-week-grid small{ display:block; }
.first-week-grid b{ color:var(--b); font-size:.9rem; line-height:1.45; }
.first-week-grid small{ margin-top:7px; color:var(--s); font-size:var(--type-caption); line-height:1.5; }
@media (max-width:900px){
  .first-week-grid{ grid-template-columns:1fr; }
  .first-week-grid article{ min-height:0; }
}

/* ---- Day builder / meal examples ---- */
.day-builder{ max-width:900px; padding-top:58px; padding-bottom:48px; }
.day-builder > p{ max-width:700px; font-size:var(--type-body); line-height:1.62; }

.meal-example{
  margin-top:32px;
  border-top:1px solid var(--hairline);
}
.meal-card{
  display:grid;
  grid-template-columns:minmax(220px,1fr) minmax(390px,auto);
  align-items:center;
  gap:30px;
  padding:20px 0 21px;
  border-bottom:1px solid var(--hairline);
}
.meal-card__identity{ min-width:0; }
.meal-card__label{
  display:block;
  margin-bottom:7px;
  color:var(--blue);
  font-size:.66rem;
  font-weight:600;
  letter-spacing:.14em;
}
.meal-card__title{
  display:block;
  font:700 1.2rem/1.18 var(--d);
  letter-spacing:-.005em;
  color:var(--b);
}
.meal-macros{
  display:grid;
  grid-template-columns:repeat(5,minmax(62px,1fr));
  gap:18px;
  margin:0;
}
.meal-macros span{
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:0;
}
.meal-macros strong{
  color:var(--b);
  font:600 .92rem/1 var(--d);
  letter-spacing:-.01em;
}
.meal-macros small{
  color:var(--s);
  font-size:.58rem;
  line-height:1;
  letter-spacing:.09em;
}

.example-note{
  width:100%;
  margin-top:22px;
  font-size:.8rem;
  line-height:1.5;
  color:var(--s);
}
.example-note b{ color:var(--b); font-weight:600; }

@media (max-width:760px){
  .day-builder{ padding-top:44px; padding-bottom:40px; }
  .meal-example{ margin-top:24px; }
  .meal-card{
    grid-template-columns:1fr;
    gap:14px;
    padding:18px 0 19px;
  }
  .meal-card__title{ font-size:1.08rem; }
  .meal-macros{
    grid-template-columns:repeat(5,minmax(0,1fr));
    gap:8px;
  }
  .meal-macros strong{ font-size:.82rem; }
  .meal-macros small{ font-size:.49rem; letter-spacing:.05em; }
}

/* ============================================================
   NEW TO TRACKING? - beginner food-scale / logging guide
   ============================================================ */
.tracking-basics__intro{ max-width:720px; margin-bottom:30px; font-size:var(--type-body); line-height:1.62; }

.tracking-tools{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--hairline);
  border:1px solid var(--hairline);
}
.tracking-tools article{
  display:grid;
  grid-template-columns:42px 1fr;
  gap:18px;
  padding:24px;
  background:var(--c);
}
.tracking-tools article > span{
  display:flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border:1px solid rgba(37,99,235,.55);
  color:var(--b);
  font-size:.72rem;
  font-weight:700;
}
.tracking-tools b{ display:block; color:var(--b); font-size:.94rem; line-height:1.35; }
.tracking-tools p{ margin:7px 0 0; color:var(--s); font-size:.78rem; line-height:1.55; }
.tracking-tools strong{ color:var(--b); }

.scale-guide{
  display:grid;
  grid-template-columns:minmax(190px,.72fr) 1.55fr;
  gap:34px;
  margin-top:26px;
  padding:28px;
  border:1px solid var(--hairline-strong);
  background:var(--c);
}
.scale-guide__header small{
  display:block;
  margin-bottom:12px;
  color:var(--s);
  font-size:.64rem;
  font-weight:600;
  letter-spacing:.12em;
}
.scale-guide__header b{
  display:block;
  max-width:240px;
  font:700 clamp(1.35rem,2.3vw,1.8rem)/1.05 var(--d);
  color:var(--b);
}
.scale-guide ol{ list-style:none; margin:0; padding:0; }
.scale-guide li{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:14px;
  padding:14px 0;
  border-top:1px solid var(--hairline);
}
.scale-guide li:first-child{ padding-top:0; border-top:0; }
.scale-guide li:last-child{ padding-bottom:0; }
.scale-guide li > span{ padding-top:2px; color:var(--b); font-size:.72rem; font-weight:700; }
.scale-guide li b{ display:block; color:var(--b); font-size:.86rem; line-height:1.4; }
.scale-guide li small{ display:block; margin-top:4px; color:var(--s); font-size:.74rem; line-height:1.5; }

.tracking-rules{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:16px; }
.tracking-rules article{ padding:22px; border:1px solid var(--hairline); background:rgba(255,255,255,.018); }
.tracking-rules small{ display:block; margin-bottom:10px; color:var(--s); font-size:.62rem; letter-spacing:.1em; line-height:1.4; }
.tracking-rules b{ display:block; color:var(--b); font-size:.92rem; line-height:1.4; }
.tracking-rules p{ margin:8px 0 0; color:var(--s); font-size:.77rem; line-height:1.58; }
.tracking-rules strong{ color:var(--b); }

.tracking-note{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:16px;
  padding:14px 18px;
  border-left:2px solid var(--blue);
  background:rgba(37,99,235,.045);
  color:var(--s);
  font-size:.78rem;
  line-height:1.5;
}
.tracking-note b{ flex:none; color:var(--b); }
.tracking-note span{ min-width:0; }

@media (max-width:760px){
  .tracking-tools,
  .tracking-rules,
  .scale-guide{ grid-template-columns:1fr; }
  .scale-guide{ gap:24px; }
  .scale-guide__header b{ max-width:none; }
  .tracking-note{ display:block; }
  .tracking-note b{ display:block; margin-bottom:5px; }
}
@media (max-width:600px){
  .tracking-tools article{ padding:20px 18px; }
  .scale-guide{ padding:22px 18px; }
  .tracking-rules{ gap:10px; }
  .tracking-note{ padding:14px 16px; }
}

/* ============================================================
   PROTEIN HELPER + FAQ
   ============================================================ */
.protein-help{
  padding:52px 0 54px;
  border-top:1px solid var(--hairline);
}
.protein-builder{ max-width:820px; margin-inline:auto; }

.protein-builder > em{ opacity:.82; }
.protein-builder h2{
  margin-top:10px;
  margin-bottom:14px;
  font-size:var(--type-section-sm);
  line-height:.94;
  letter-spacing:-.025em;
}
.protein-builder > p{ max-width:560px; font-size:var(--type-body); margin-bottom:0; }

.meal-count{ display:flex; gap:8px; margin:22px 0 16px; }
.meal-count button{ flex:1; min-height:48px; background:#15181b; color:var(--b); border-color:var(--hairline-strong); }
.meal-count button.active{
  background:rgba(37,99,235,.13);
  color:var(--b);
  border-color:var(--blue);
  box-shadow:inset 0 0 0 1px var(--blue);
}

.protein-callout{ margin-top:18px; padding:24px; background:#171a1d; border:1px solid var(--hairline); overflow:hidden; }
.protein-callout small{ display:block; color:var(--s); font-size:.65rem; letter-spacing:.13em; }
.protein-callout__target{ display:flex; align-items:baseline; flex-wrap:wrap; gap:8px 14px; margin-top:12px; }
.protein-callout__target strong{
  flex:none;
  font:700 clamp(3rem,6vw,4.1rem)/.9 var(--d);
  white-space:nowrap;
  color:var(--b);
}
.protein-callout__target span{ flex:1 1 180px; min-width:0; font-size:.94rem; line-height:1.3; color:var(--b); }
.protein-callout > p{ clear:both; margin:14px 0 0; max-width:520px; font-size:.8rem; line-height:1.5; color:var(--s); }

.faq{ max-width:780px; padding-top:54px; margin-inline:auto; }
.faq h2{ font-size:var(--type-section-sm); line-height:.95; }
.faq details{ padding:18px 0; border-top:1px solid var(--hairline); color:var(--s); }
.faq details:first-of-type{ margin-top:28px; }
.faq summary{
  display:flex;
  justify-content:space-between;
  gap:20px;
  list-style:none;
  color:var(--b);
  font-weight:600;
  font-size:.92rem;
  cursor:pointer;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{ content:"+"; color:var(--blue); font-size:1.2rem; line-height:1; }
.faq details[open] summary::after{ content:"−"; }
.faq details p{ max-width:620px; margin-top:10px; font-size:.86rem; line-height:1.6; }

@media (max-width:600px){
  .protein-help{ padding:44px 0 46px; }
  .protein-help .faq{ padding-top:38px; }
  .protein-builder h2,
  .faq h2{ font-size:clamp(2.05rem,10vw,2.75rem); }
}

/* ============================================================
   LESSON / CTA / FOOTER
   ============================================================ */
.lesson{ max-width:760px; padding-top:62px; padding-bottom:58px; }
.lesson h2{ font-size:var(--type-section-sm); line-height:.92; }
.lesson p{ max-width:680px; font-size:var(--type-body); line-height:1.62; }

.cta{
  position:relative;
  overflow:hidden;
  max-width:800px;
  margin-top:12px;
  padding:clamp(36px,6vw,58px);
  background:var(--b);
  color:var(--o);
}
.cta::after{
  content:"";
  position:absolute;
  right:-150px; bottom:-170px;
  width:260px; height:260px;
  border:1px solid rgba(11,13,15,.12);
  border-radius:50%;
}
.cta h2,
.cta p,
.cta button{ position:relative; z-index:1; }
.cta h2{ max-width:560px; font-size:var(--type-section-sm); line-height:.94; }
.cta p{ margin-top:10px; max-width:520px; font-size:.95rem; line-height:1.55; color:rgba(11,13,15,.8); }
.cta button{ margin-top:12px; min-height:48px; background:var(--o); color:var(--b); }
.cta button:hover{ background:var(--blue); border-color:var(--blue); }

#restart{ margin-top:4px; font-size:.75rem; }
.link{ border:0; padding:0; color:var(--s); text-decoration:underline; }

.disclaimer{ max-width:760px; margin-top:26px; font-size:.68rem; line-height:1.55; color:#858683; }

@media (max-width:600px){
  .lesson{ padding-top:44px; padding-bottom:40px; }
  .lesson h2{ font-size:clamp(2.05rem,10vw,2.75rem); }
  .cta{ margin-inline:0; padding:36px 24px; }
  .cta button{ width:100%; min-height:54px; }
}

/* ============================================================
   UTILITIES / MOTION
   ============================================================ */
.sr-only{
  position:absolute;
  width:1px; height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

@keyframes fbsStepIn{
  from{ opacity:0; transform:translateY(12px); }
  to{ opacity:1; transform:none; }
}
@keyframes fbsResultsIn{
  from{ opacity:0; transform:translateY(18px); }
  to{ opacity:1; transform:none; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; scroll-behavior:auto !important; }
  .step,
  #results{ animation:none !important; }
}

/* ---------- Mobile background tint ---------- */
@media (max-width:600px){
  body{
    background:
      radial-gradient(circle at 90% 4%, rgba(37,99,235,.055), transparent 17rem),
      var(--o);
  }
}


/* ============================================================
   V1.0.3 - FINAL RHYTHM / ALIGNMENT SYSTEM
   A single spacing system for the complete results experience.
   ============================================================ */

:root{
  --result-section-y:52px;
  --result-content-gap:24px;
  --result-inner-gap:16px;
  --result-width:900px;
}

/* One common left/right measure for every major results section. */
.macros,
.simple-start,
.day-builder,
.tracking-basics,
.protein-help,
.lesson,
.cta,
#restart,
.disclaimer{
  width:100%;
  max-width:var(--result-width);
  margin-inline:0;
}

/* Consistent section boundaries: equal space on each side of every divider. */
.day-builder,
.tracking-basics,
.protein-help,
.lesson{
  padding:var(--result-section-y) 0;
  border-top:1px solid var(--hairline);
}

.simple-start{
  padding:0 0 var(--result-section-y);
  border-top:0;
}

/* One heading rhythm everywhere. */
.simple-start h2,
.day-builder h2,
.tracking-basics h2,
.lesson h2{
  margin:12px 0 20px;
}

.simple-start h2{
  margin-bottom:var(--result-content-gap);
}

/* Results intro -> first section */
.macros{
  margin-top:24px;
  margin-bottom:var(--result-section-y);
}

/* First-week cards: no doubled h2 margin + grid margin. */
.first-week-grid{
  margin-top:0;
}
.first-week-grid article{
  display:flex;
  flex-direction:column;
  min-height:164px;
  padding:22px 22px 24px;
}

/* Meal section spacing. */
.day-builder{
  max-width:var(--result-width);
}
.day-builder > p{
  margin:0;
}
.meal-example{
  margin-top:var(--result-content-gap);
}
.example-note{
  margin-top:22px;
}

/* Tracking section: one predictable 24 / 16px internal cadence. */
.tracking-basics__intro{
  margin-bottom:var(--result-content-gap);
}
.scale-guide{
  margin-top:var(--result-inner-gap);
}
.tracking-rules{
  margin-top:var(--result-inner-gap);
  gap:var(--result-inner-gap);
}
.tracking-note{
  margin-top:var(--result-inner-gap);
}

/* Protein + FAQ now share the same left edge as every other section. */
.protein-builder,
.faq{
  width:100%;
  max-width:var(--result-width);
  margin-inline:0;
}
.protein-builder h2{
  margin:12px 0 14px;
}
.meal-count{
  margin:22px 0 var(--result-inner-gap);
}
.protein-callout{
  margin-top:0;
}
.faq{
  margin-top:48px;
  padding-top:48px;
  border-top:1px solid var(--hairline);
}
.faq h2{
  margin:12px 0 24px;
}
.faq details:first-of-type{
  margin-top:0;
}

/* Closing lesson + CTA are one composition, eliminating the oversized gap. */
.lesson{
  max-width:var(--result-width);
}
.lesson > p{
  margin:0;
}
.cta{
  position:relative;
  overflow:hidden;
  max-width:var(--result-width);
  margin-top:32px;
  padding:44px;
  border:1px solid var(--hairline-strong);
  border-left:2px solid var(--blue);
  background:#15181b;
  color:var(--b);
}
.cta::after{
  display:none;
}
.cta h2{
  max-width:680px;
  margin:0 0 16px;
  color:var(--b);
  font-size:var(--type-section-sm);
  line-height:.94;
}
.cta p{
  max-width:610px;
  margin:0;
  color:var(--s);
  font-size:.95rem;
  line-height:1.58;
}
.cta button{
  min-height:48px;
  margin-top:20px;
  background:var(--b);
  color:var(--o);
  border-color:var(--b);
}
.cta button:hover{
  background:var(--blue);
  border-color:var(--blue);
  color:#fff;
}

/* The utility close uses the same left/right measure and a calm final rhythm. */
#restart{
  margin-top:0;
}
.disclaimer{
  margin-top:20px;
}

/* Mobile */
@media (max-width:600px){
  :root{
    --result-section-y:40px;
    --result-content-gap:20px;
    --result-inner-gap:12px;
  }

  .simple-start{
    padding-bottom:var(--result-section-y);
  }

  .day-builder,
  .tracking-basics,
  .protein-help,
  .lesson{
    padding:var(--result-section-y) 0;
  }

  .faq{
    margin-top:40px;
    padding-top:40px;
  }

  .cta{
    margin-top:28px;
    padding:34px 24px;
    border-left-width:1px;
    border-top:2px solid var(--blue);
  }
  .cta button{
    width:100%;
    min-height:54px;
  }
}


/* ============================================================
   PRE-CALC EDUCATION + NAVIGATION
   Beginner guidance is intentionally visible before calculation.
   ============================================================ */
header .brand-home{
  font-family:var(--d);
  font-size:1.04rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--b);
  text-decoration:none;
}
header .brand-home:hover{ color:#fff; }
header .brand-home:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:4px;
}

.calculator-intro{
  width:min(900px,100%);
  margin:0 auto;
  padding:clamp(24px,4vw,42px) 0 clamp(48px,7vw,76px);
}
.calculator-intro h1{
  max-width:820px;
  margin:14px 0 22px;
  font-size:clamp(3.7rem,9vw,6.8rem);
}
.calculator-intro > p{
  max-width:680px;
  font-size:1.03rem;
}
.precalc-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.precalc-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  padding:0 18px;
  border:1px solid var(--hairline-strong);
  color:var(--b);
  text-decoration:none;
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.08em;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s var(--ease-premium);
}
.precalc-link:hover{ border-color:rgba(244,242,237,.55); transform:translateY(-1px); }
.precalc-link--primary{
  background:var(--b);
  border-color:var(--b);
  color:var(--o);
}
.precalc-link--primary:hover{
  background:var(--blue);
  border-color:var(--blue);
  color:#fff;
}
.precalc-link:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:3px;
}

.precalc-education{
  width:min(900px,100%);
  margin:0 auto clamp(64px,8vw,96px);
  border-top:1px solid var(--hairline);
}
.precalc-education .tracking-basics{
  width:100%;
  max-width:none;
  margin:0;
  border-top:0;
  padding-top:var(--result-section-y);
}
.precalc-education .faq{
  width:100%;
  max-width:none;
  margin:0;
  padding:var(--result-section-y) 0 0;
  border-top:1px solid var(--hairline);
}
.precalc-start{
  margin-top:var(--result-section-y);
  padding:var(--result-section-y) 0 0;
  border-top:1px solid var(--hairline);
}
.precalc-start h2{
  max-width:720px;
  margin:12px 0 18px;
  font-size:var(--type-section);
  line-height:.92;
}
.precalc-start p{
  max-width:650px;
  margin-bottom:24px;
  font-size:var(--type-body);
}
.calculator-shell{
  width:min(900px,100%);
  margin:0 auto;
  padding-top:10px;
  scroll-margin-top:86px;
}
#results{ scroll-margin-top:86px; }

/* FAQ now lives in the always-visible beginner guide. */
.protein-help .faq{ display:none; }

/* Real coaching destination instead of a dead button. */
.cta .cta-link{
  position:relative;
  z-index:1;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  margin-top:20px;
  padding:0 18px;
  background:var(--b);
  color:var(--o);
  border:1px solid var(--b);
  text-decoration:none;
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.08em;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.cta .cta-link:hover{
  background:var(--blue);
  border-color:var(--blue);
  color:#fff;
}
.cta .cta-link:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:3px;
}

@media (max-width:600px){
  .calculator-intro{ padding-top:14px; padding-bottom:48px; }
  .calculator-intro h1{ font-size:clamp(3.15rem,15vw,4.5rem); }
  .precalc-actions{ flex-direction:column; }
  .precalc-link{ width:100%; min-height:54px; }
  .precalc-education{ margin-bottom:58px; }
  .precalc-start h2{ font-size:clamp(2.45rem,12vw,3.25rem); }
  .calculator-shell,#results{ scroll-margin-top:72px; }
  .cta .cta-link{ width:100%; min-height:54px; }
}