@font-face {
    font-family: Inter;
    src: url("assets/fonts/Inter.ttf") format("truetype");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Mono";
    src: url("assets/fonts/IBMPlexMono-Regular.ttf") format("truetype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

:root {
    color-scheme: dark;
    --bg: #0e0f16;
    --ink: #e9e9ed;
    --muted: #afb0bd;
    --green: #72c494;
    --rest: #db827c;
    --lavender: #b7a9ed;
    --light: #e4e1f0;
    --dark-ink: #191a27;
    --rule: #ffffff24;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-optical-sizing: auto;
    background: var(--bg);
    color: var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; font-size: 1rem; line-height: 1.65; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-underline-offset: .25em; }
a:focus-visible { outline: 3px solid var(--lavender); outline-offset: 6px; }
p, h1, h2, h3, figure { margin: 0; }
h1, h2, h3 { font-weight: 570; line-height: 1.08; }
h1, h2 { letter-spacing: -.058em; }
h3 { letter-spacing: -.035em; }
.wrap { width: min(100% - 5rem, 78rem); margin-inline: auto; }
.skip-link { position: absolute; top: 1rem; left: 1rem; transform: translateY(-200%); z-index: 10; padding: .8rem 1rem; color: var(--dark-ink); background: var(--green); }
.skip-link:focus { transform: none; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-block: 1.75rem; }
.brand { display: inline-flex; align-items: center; gap: .85rem; text-decoration: none; font-size: 1.2rem; font-weight: 600; letter-spacing: -.04em; }
.brand img { border-radius: .7rem; flex-shrink: 0; }
.site-header nav { display: flex; align-items: center; gap: 1.9rem; }
.nav-link { font-size: .9rem; color: var(--muted); text-decoration: none; }
.nav-link:hover, .site-footer a:hover { color: var(--ink); text-decoration: underline; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 1.5rem; min-height: 3.6rem; padding: .95rem 1.5rem; border: 1px solid transparent; border-radius: .65rem; background: var(--green); color: var(--dark-ink); font-weight: 650; line-height: 1.4; text-align: center; text-decoration: none; transition: background .15s ease, transform .15s ease; }
.button:hover { background: #8ed5ab; transform: translateY(-2px); }
.button-small { background: transparent; color: var(--ink); border-color: #ffffff45; min-height: 2.85rem; padding: .6rem 1rem; font-size: .9rem; }
.button-small:hover { background: #ffffff12; }
.eyebrow { font: .875rem/1.7 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.hero { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); align-items: center; gap: 3rem; padding-block: 3.3rem 4rem; }
.hero h1 { margin-block: 1.7rem 1.9rem; font-size: clamp(3rem, 6.45vw, 5.8rem); line-height: 1.04; }
.hero h1 span { color: var(--green); }
.intro { max-width: 29rem; margin-bottom: 2rem; font-size: clamp(1.125rem, 1.7vw, 1.3rem); color: var(--muted); line-height: 1.6; }
.availability { font-size: .875rem; color: var(--muted); margin-top: 1rem; }
.phase-line { display: flex; align-items: center; gap: 1.15rem; max-width: 30rem; margin-top: 4.5rem; font: .875rem var(--mono); letter-spacing: .075em; }
.phase-line i { height: 1px; background: #ffffff30; flex: 1; }
.work { color: var(--green); }
.rest { color: var(--rest); }
.hero-screen { width: min(100%, 19.5rem); justify-self: center; }
.screen-frame { padding: .4rem; border: 1px solid #656673; border-radius: 2.4rem; background: #111219; box-shadow: 0 1.5rem 6rem #0005; }
.screen-frame img { border-radius: 1.95rem; }
figcaption { font-size: .875rem; line-height: 1.5; color: var(--muted); }
.hero-screen figcaption { margin-top: 1.2rem; text-align: center; }
.timer-details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3rem; padding-block: 2.5rem 5rem; border-top: 1px solid var(--rule); }
.detail-number { font: .8rem/1.6 var(--mono); letter-spacing: .06em; color: var(--lavender); margin-bottom: 1.15rem; }
.timer-details h2 { font-size: 1.25rem; letter-spacing: -.035em; line-height: 1.3; margin-bottom: .7rem; }
.timer-details article > p:last-child { color: var(--muted); }
.section-light { background: var(--light); color: var(--dark-ink); color-scheme: light; }
.workouts { padding-block: 6.5rem 4rem; }
.section-heading h2 { margin-block: 1.4rem 1.25rem; font-size: clamp(2.65rem, 5.5vw, 4.75rem); }
.section-heading > p:last-child { max-width: 33rem; color: #52505f; font-size: 1.2rem; }
.workout-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: center; gap: 5rem; margin-top: 3.5rem; }
.workout-window { aspect-ratio: 1.18; overflow: hidden; border: 1px solid #797482; border-radius: 1.5rem; background: #161723; box-shadow: 0 1rem 3rem #191a2715; }
.workout-window img { width: 100%; margin-top: -14%; }
.workout-figure figcaption { margin-top: 1rem; color: #615d6d; }
.workout-steps { display: grid; gap: 1.8rem; }
.workout-steps > div { display: flex; align-items: baseline; gap: 1.5rem; }
.step-number { color: #695497; font: .875rem var(--mono); }
.workout-steps h3 { font-size: 1.6rem; margin-bottom: .6rem; }
.workout-steps p { color: #52505f; max-width: 26rem; }
.formats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; border-top: 1px solid #191a2733; padding-top: 2.5rem; margin-top: 4rem; }
.formats h3 { font-size: 1.4rem; margin-bottom: .6rem; }
.formats p { color: #615d6d; }
.free-section { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; padding-block: 7rem; }
.free-heading h2 { font-size: clamp(3.5rem, 7.5vw, 6.5rem); margin-top: 1.4rem; }
.free-heading h2 span { color: var(--lavender); }
.free-intro { color: var(--muted); font-size: 1.2rem; margin-top: 1.7rem; }
.zero-line { display: flex; align-items: center; gap: 2.5rem; margin-bottom: 1.5rem; }
.zero { font: 10.5rem/1 var(--mono); color: var(--lavender); }
.zero-line p { font-size: clamp(1.35rem, 2.25vw, 1.8rem); letter-spacing: -.035em; font-weight: 550; line-height: 1.5; }
.free-details > p { color: var(--muted); max-width: 27rem; }
.privacy-note { border-top: 1px solid var(--rule); padding-top: 2rem; margin-top: 2rem; }
.privacy-note h3 { font-size: 1.4rem; margin-bottom: .7rem; }
.privacy-note p { color: var(--muted); max-width: 27rem; margin-bottom: 1rem; }
.text-link { color: var(--lavender); }
.closing { background: #1b2421; border-top: 1px solid #72c49430; border-bottom: 1px solid #72c49430; }
.closing-inner { display: flex; align-items: center; gap: 1.8rem; padding-block: 3.5rem; }
.closing img { border-radius: 1.2rem; }
.closing .eyebrow { color: var(--green); font-size: .8rem; margin-bottom: .5rem; }
.closing h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); letter-spacing: -.045em; }
.closing-action { margin-left: auto; text-align: center; flex-shrink: 0; }
.closing-action .availability { font-size: .8rem; margin-top: .65rem; }
.site-footer { display: flex; align-items: center; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; padding-block: 2.5rem; font-size: .875rem; color: var(--muted); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .25rem 1.8rem; }
.site-footer a { text-decoration: none; }
.site-footer a, .nav-link { padding-block: .65rem; }
.screen-note { flex-basis: 100%; font-size: .8rem; }

@media (min-width: 1600px) {
    .hero { padding-block: 4.5rem 5.5rem; }
}

@media (max-width: 1000px) {
    .wrap { width: min(100% - 3rem, 78rem); }
    .hero { gap: 2rem; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }
    .hero h1 { font-size: clamp(2.9rem, 6.1vw, 4.5rem); }
    .hero .eyebrow { max-width: 19rem; }
    .phase-line { margin-top: 3rem; gap: .75rem; }
    .timer-details { gap: 2rem; }
    .workout-grid { gap: 3rem; }
    .free-section { gap: 3rem; }
    .closing-inner { flex-wrap: wrap; }
    .closing-action { margin-left: 0; }
}

@media (max-width: 720px) {
    .wrap { width: calc(100% - 2.5rem); }
    .site-header { padding-block: 1.15rem; gap: .75rem; }
    .site-header nav { gap: 0; }
    .nav-link { display: none; }
    .brand { font-size: 1rem; gap: .6rem; }
    .brand img { width: 34px; height: 34px; border-radius: .6rem; }
    .button-small { min-height: 2.75rem; padding: .6rem .85rem; font-size: .875rem; }
    .hero { display: flex; flex-direction: column; align-items: stretch; gap: 3rem; padding-block: 3rem; }
    .hero .eyebrow { max-width: none; font-size: .8rem; }
    .hero h1 { font-size: clamp(2.6rem, 9.75vw, 4.4rem); margin-block: 1.25rem 1.5rem; }
    .intro { max-width: 28rem; font-size: 1.125rem; margin-bottom: 1.7rem; }
    .phase-line { margin-top: 2.5rem; max-width: 26rem; }
    .hero-screen { align-self: center; width: min(76%, 19.5rem); }
    .timer-details { grid-template-columns: 1fr; gap: 2rem; padding-bottom: 3.5rem; }
    .timer-details article { max-width: 32rem; }
    .detail-number { margin-bottom: .6rem; }
    .workouts { padding-block: 3.8rem 3rem; }
    .section-heading h2 { font-size: clamp(2.4rem, 8.5vw, 3.4rem); }
    .section-heading > p:last-child { font-size: 1.125rem; }
    .workout-grid { grid-template-columns: 1fr; gap: 2.5rem; margin-top: 2.5rem; }
    .workout-window { aspect-ratio: 1.1; }
    .workout-steps > div { gap: 1rem; }
    .workout-steps h3 { font-size: 1.45rem; }
    .formats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1.5rem; margin-top: 3rem; padding-top: 2rem; }
    .free-section { grid-template-columns: 1fr; gap: 2.5rem; padding-block: 4rem; }
    .free-heading h2 { font-size: clamp(3.5rem, 15vw, 5.8rem); }
    .zero-line { gap: 2rem; }
    .zero { font-size: 8rem; }
    .zero-line p { font-size: 1.5rem; }
    .closing-inner { gap: 1.25rem; padding-block: 2.5rem; }
    .closing img { width: 52px; height: 52px; border-radius: .8rem; }
    .closing-inner > div:nth-child(2) { flex: 1; min-width: 12rem; }
    .closing h2 { font-size: 1.8rem; }
    .closing-action { width: 100%; margin-top: .75rem; text-align: left; }
    .site-footer { align-items: flex-start; flex-direction: column; gap: .5rem; padding-block: 2rem; }
    .site-footer nav { gap: .25rem 1.5rem; }
    .screen-note { margin-top: .5rem; }
}

@media (max-width: 360px) {
    .wrap { width: calc(100% - 2rem); }
    .brand { font-size: .9rem; }
    .brand img { width: 29px; height: 29px; }
    .button-small { padding-inline: .65rem; }
    .hero h1 { font-size: 2.45rem; }
    .button { gap: .75rem; padding-inline: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .button { transition: none; }
    .button:hover { transform: none; }
}