@font-face {
    font-family: Poppins;
    src: url("assets/poppins-400.woff2") format("woff2");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: Poppins;
    src: url("assets/poppins-600.woff2") format("woff2");
    font-weight: 600;
    font-display: swap;
}
@font-face {
    font-family: Poppins;
    src: url("assets/poppins-700.woff2") format("woff2");
    font-weight: 700;
    font-display: swap;
}
:root {
    color-scheme: dark;
    --black: #0b0404;
    --page: #101010;
    --surface: #1b1a1a;
    --control: #222222;
    --gold: #e1c182;
    --red: #6a1611;
    --maroon: #391b12;
    --hero-glow: radial-gradient(ellipse at 91% 31%, var(--maroon), transparent 64%);
    --text: #fff8f0;
    --muted: #d6c7ba;
    --line: #443631;
    font-family: Poppins, system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--page); color: var(--text); line-height: 1.65; }
p, h1, h2, h3, figure { margin: 0; }
em { color: var(--gold); font-style: normal; }
a { color: var(--gold); text-underline-offset: .17em; }
a:focus-visible, input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.sr-only, .goals input { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: .75rem; left: .75rem; padding: .7rem 1rem; z-index: 2; transform: translateY(-200%); background: var(--gold); color: var(--black); }
.skip-link:focus { transform: none; }
.shell { width: min(100% - 3rem, 72rem); margin-inline: auto; }
.topbar { border-bottom: 1px solid var(--line); }
.brand { min-height: 5.2rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand a { display: inline-flex; align-items: center; gap: .72rem; padding-block: .38rem; text-decoration: none; }
.brand-logo { width: 3.6rem; height: auto; display: block; border-radius: .7rem; }
.brand-name { display: grid; line-height: 1.35; }
.brand-name strong { color: var(--gold); font-size: .91rem; letter-spacing: .045em; }
.brand-name span { color: var(--muted); font-size: .64rem; letter-spacing: .12em; }
.brand > span { color: var(--gold); font-size: .67rem; font-weight: 600; letter-spacing: .13em; text-align: right; }
.hero {
    margin: 1.55rem 0 1.65rem;
    padding: clamp(1.3rem, 4vw, 3rem);
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(12rem, .75fr);
    align-items: center;
    gap: 1.6rem;
    border: 1px solid var(--line);
    border-radius: 1.55rem;
    background: var(--hero-glow), linear-gradient(140deg, var(--surface), var(--black));
}
.eyebrow { color: var(--gold); font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin-top: .72rem; font-size: clamp(2.35rem, 5.6vw, 4.45rem); font-weight: 700; line-height: .99; letter-spacing: -.062em; }
h1 em { display: block; }
.intro { max-width: 38ch; color: var(--muted); font-size: clamp(.95rem, 1.6vw, 1.07rem); }
.author { display: flex; align-items: center; gap: .72rem; margin-top: 1rem; }
.author img { display: block; width: 3.3rem; aspect-ratio: 1; height: auto; border-radius: 50%; border: 1px solid #e1c18265; }
.author figcaption { display: grid; gap: .12rem; }
.author strong { color: var(--gold); font-size: .91rem; }
.author figcaption span { color: var(--muted); font-size: .78rem; }
.calculator-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 1rem; }
.panel { border: 1px solid var(--line); background: var(--surface); border-radius: 1.15rem; }
.form-panel, .daily-result, .meals, .walking { padding: clamp(1rem, 3vw, 1.6rem); }
.form-panel section + section { margin-top: 1.3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.section-title { display: flex; align-items: center; gap: .7rem; margin-bottom: .95rem; }
.section-title h2 { font-size: clamp(1rem, 2.3vw, 1.28rem); letter-spacing: -.024em; line-height: 1.3; }
.step { display: grid; place-items: center; flex: 0 0 2.05rem; height: 2.05rem; border: 1px solid var(--line); color: var(--gold); border-radius: 50%; font-size: .72rem; font-weight: 700; }
.field-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .75rem; }
label { display: block; font-size: .82rem; font-weight: 600; }
label small { color: var(--muted); font-weight: 400; font-size: .76rem; }
.wide { grid-column: 1 / -1; }
input, select {
    display: block;
    width: 100%;
    margin-top: .32rem;
    min-height: 2.85rem;
    border: 1px solid var(--line);
    border-radius: .62rem;
    background: #141313;
    color: var(--text);
    padding: .55rem .68rem;
    font: inherit;
}
input::placeholder { color: #a29b92; opacity: 1; }
input[type="number"] { appearance: textfield; }
input::-webkit-inner-spin-button, input::-webkit-outer-spin-button { appearance: none; margin: 0; }
select:disabled { opacity: .55; }
.unit-input { display: block; position: relative; }
.unit-input input { padding-right: 2.75rem; }
.unit-input > span { position: absolute; top: 50%; right: .65rem; transform: translateY(-50%); font-size: .73rem; font-weight: 400; color: var(--muted); pointer-events: none; }
.hint { margin-top: .55rem; font-size: .77rem; color: var(--muted); }
.work-label { margin-top: .8rem; }
.goals { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .45rem; padding: 0; margin: 0; border: 0; }
.goals label { display: grid; align-content: center; min-height: 4.05rem; text-align: center; border: 1px solid var(--line); border-radius: .65rem; padding: .45rem .22rem; background: #141313; cursor: pointer; line-height: 1.36; }
.goals small { margin-top: .18rem; }
.goals label:has(input:checked) { border-color: var(--gold); background: var(--maroon); color: var(--gold); }
.goals label:has(input:focus-visible) { outline: 2px solid var(--gold); outline-offset: 3px; }
.primary { display: flex; align-items: center; justify-content: space-between; gap: .7rem; width: 100%; min-height: 3rem; margin-top: 1.2rem; padding: .72rem .95rem; border: 0; border-radius: .65rem; background: var(--gold); color: var(--black); font: inherit; font-weight: 700; cursor: pointer; }
.primary:hover { background: #f4d498; }
.privacy { text-align: center; }
.output { display: grid; gap: .7rem; min-width: 0; }
.result-prompt { padding: clamp(1.15rem, 4vw, 2.35rem); border-top: 2px solid var(--red); }
.section-logo { display: block; width: 4.7rem; height: auto; border-radius: .8rem; margin-bottom: 1rem; }
.result-prompt h2, .walking h2 { margin: .55rem 0; font-size: clamp(1.7rem, 4vw, 2.4rem); letter-spacing: -.045em; line-height: 1.18; }
.result-prompt > p:not(.eyebrow) { color: var(--muted); max-width: 42ch; }
.pills { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }
.pills span, .goal-badge { padding: .24rem .58rem; border: 1px solid var(--line); border-radius: 1rem; font-size: .73rem; color: var(--gold); }
.daily-result { border-top: 2px solid var(--red); scroll-margin: .75rem; }
.goal-badge { display: inline-block; margin-top: .45rem; }
.calories { margin-top: .35rem; display: flex; align-items: baseline; flex-wrap: wrap; gap: .48rem; }
.calories strong { font-size: clamp(2.6rem, 6vw, 4rem); line-height: 1.05; color: var(--gold); letter-spacing: -.045em; }
.calories span { color: var(--muted); }
.macro-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .45rem; margin-top: .95rem; }
.macro-grid > div, .fiber, .meal-card, .walking-grid > div { border: 1px solid var(--line); border-radius: .7rem; background: var(--control); padding: .68rem; }
.macro-grid > div, .fiber > div, .walking-grid > div { display: grid; gap: .15rem; font-size: .8rem; }
.macro-grid strong, .fiber strong, .walking-grid strong { color: var(--gold); font-size: 1rem; }
.macro-grid small, .walking-grid small { color: var(--muted); font-size: .7rem; }
.fiber { display: flex; align-items: center; gap: .8rem; margin-top: .48rem; }
.fiber > div { flex: 0 0 auto; }
.fiber p { color: var(--muted); font-size: .73rem; }
.meals { margin-top: .65rem; }
.meals > label { margin-block: .75rem; }
.meal-fields { row-gap: .5rem; }
.split-status { margin-block: .7rem; color: var(--gold); font-size: .77rem; }
.split-status.invalid { color: #ffc0aa; }
.meal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .45rem; }
.meal-card { font-size: .76rem; }
.meal-card strong { display: block; color: var(--gold); font-size: .98rem; margin-block: .18rem; }
.meal-card div { display: flex; gap: .45rem; justify-content: space-between; color: var(--muted); }
.results-note { margin: .55rem .15rem 0; }
.methodology summary { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .75rem .92rem; font-size: .82rem; font-weight: 600; cursor: pointer; }
.methodology summary::-webkit-details-marker { display: none; }
.methodology summary span { color: var(--gold); font-size: 1rem; }
.methodology[open] summary span { transform: rotate(45deg); }
.method-copy { border-top: 1px solid var(--line); padding: .72rem .92rem .9rem; color: var(--muted); font-size: .8rem; }
.method-copy h3 { color: var(--text); font-size: .88rem; margin-top: .62rem; }
.method-copy p + p { margin-top: .55rem; }
.walking { margin: 1rem 0 1.65rem; }
.walking-head { display: flex; align-items: center; justify-content: space-between; gap: .65rem; margin-bottom: .65rem; }
.walking-target { display: grid; text-align: center; color: var(--gold); background: var(--maroon); border: 1px solid var(--line); border-radius: .7rem; padding: .48rem .72rem; white-space: nowrap; }
.walking-target span { font-size: .66rem; text-transform: uppercase; }
.walking > p, #walking-personal > p { margin-top: .55rem; color: var(--muted); }
.walking strong { color: var(--text); }
.walking-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .5rem; margin: .68rem 0; }
.walking-grid strong { color: var(--gold); }
.walking-method { margin-top: .8rem; border-top: 1px solid var(--line); }
.footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .77rem; }
.footer .shell { display: flex; justify-content: space-between; gap: .75rem; padding-block: 1rem; }
.footer strong { color: var(--gold); }

@media (max-width: 48rem) {
    .shell { width: calc(100% - 1.5rem); }
    .brand { min-height: 4.55rem; }
    .brand-logo { width: 2.8rem; }
    .brand > span { font-size: .6rem; letter-spacing: .09em; }
    .hero { grid-template-columns: 1fr; gap: 1.05rem; margin-top: .85rem; border-radius: 1.05rem; }
    .calculator-grid { grid-template-columns: 1fr; }
    .walking-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .walking-head { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 25rem) {
    .goals label { font-size: .74rem; }
    .field-grid { gap: .6rem; }
    .macro-grid > div, .meal-card { padding: .53rem; }
    .macro-grid > div { font-size: .72rem; }
    .author figcaption span { font-size: .68rem; }
}