/* =========================================================
   StepUp — learning tower landing page
   ========================================================= */

/* ---------- Fonts ---------- */
@font-face{
  font-family:'Playfair Display';
  src:url('assets/fonts/playfair-latin.woff2') format('woff2');
  font-weight:400 900; font-style:normal; font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Playfair Display';
  src:url('assets/fonts/playfair-latin-ext.woff2') format('woff2');
  font-weight:400 900; font-style:normal; font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:'DM Sans';
  src:url('assets/fonts/dm-sans-latin.woff2') format('woff2');
  font-weight:100 1000; font-style:normal; font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'DM Sans';
  src:url('assets/fonts/dm-sans-latin-ext.woff2') format('woff2');
  font-weight:100 1000; font-style:normal; font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

/* ---------- Design tokens ---------- */
:root{
  /* colour */
  --page-bg:#f9f6f2;
  --band-bg:#f4f0eb;
  --surface:#ffffff;
  --text-primary:#1a1a1a;
  --text-secondary:#6e6b67;
  --text-tertiary:#8a8681;
  --accent:#575630;
  --accent-hover:#464527;
  --accent-active:#3a390f;
  --accent-soft:#f1ece6;
  --accent-ink:#6e6857;
  --gold:#c09a5e;
  --star:#fba92c;
  --border:#eae4dc;
  --border-strong:#e0d9cf;
  --hairline:rgba(0,0,0,.05);
  --on-dark:#ffffff;
  --on-dark-soft:rgba(255,255,255,.84);

  /* layout */
  --container-width:1280px;
  --container-narrow:1248px;

  /* spacing (4px base) */
  --space-1:4px;  --space-2:8px;  --space-3:12px; --space-4:16px;
  --space-5:24px; --space-6:32px; --space-7:40px; --space-8:48px;
  --space-9:64px; --space-10:80px;

  /* radii */
  --radius-sm:8px;
  --radius-md:10px;
  --radius-lg:14px;
  --radius-xl:20px;
  --radius-pill:999px;

  /* type */
  --font-sans:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-serif:'Playfair Display',Georgia,'Times New Roman',serif;
  --text-xs:12.5px;
  --text-sm:13px;
  --text-base:14px;
  --text-md:15px;
  --text-lg:17px;
  --text-xl:19.5px;
  --text-2xl:26px;
  --text-3xl:30px;
  --text-4xl:33px;
  --text-display:74px;

  /* motion */
  --ease:cubic-bezier(.4,0,.2,1);
  --dur:180ms;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page-bg);
  color:var(--text-primary);
  font-family:var(--font-sans);
  font-size:var(--text-md);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote,table{margin:0}
ul{margin:0;padding:0;list-style:none}
img,svg{display:block;max-width:100%}
img{height:auto}
button{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}

.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;
}
.skip-link{
  position:absolute;left:var(--space-4);top:-64px;z-index:100;
  background:var(--accent);color:#fff;padding:10px 18px;
  border-radius:var(--radius-md);font-weight:500;
  transition:top var(--dur) var(--ease);
}
.skip-link:focus-visible{top:var(--space-4)}

:where(a,button,[tabindex]):focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- Layout helpers ---------- */
.shell{
  width:100%;
  max-width:var(--container-width);
  margin-inline:auto;
  padding-inline:var(--space-6);
}
.shell--narrow{max-width:var(--container-narrow)}
@media (min-width:1440px){ .shell{padding-inline:0} }

/* ---------- Shared type ---------- */
.h-serif{
  font-family:var(--font-serif);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.15;
  color:var(--text-primary);
}
.h-serif--sm{font-size:clamp(24px,1rem + .97vw,var(--text-3xl))}
.h-serif--xs{font-size:clamp(21px,1rem + .7vw,var(--text-2xl))}
.h-sub{
  font-size:clamp(17px,1rem + .21vw,19px);
  font-weight:700;
  letter-spacing:-.015em;
  line-height:1.6;
  margin-top:5px;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  --btn-bg:var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--space-2);
  background:var(--btn-bg);
  color:#fff;
  font-weight:700;
  letter-spacing:-.01em;
  border:0;
  cursor:pointer;
  text-align:center;
  border-radius:var(--radius-md);
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.btn--pill{border-radius:var(--radius-pill)}
.btn--lg{
  min-width:256px;height:58px;
  padding:0 var(--space-6);
  font-size:var(--text-lg);
  box-shadow:0 1px 2px rgba(50,45,20,.16);
}
.btn--xl{
  min-width:246px;height:72px;
  padding:0 var(--space-6);
  font-size:var(--text-lg);
  box-shadow:0 1px 2px rgba(50,45,20,.16);
}
.btn:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn:active{transform:translateY(0);background:var(--accent-active)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn[disabled],.btn[aria-disabled='true']{
  background:#cdc9bd;color:#f6f4f0;cursor:not-allowed;transform:none;box-shadow:none;
}

/* =========================================================
   Header
   ========================================================= */
.site-header{position:absolute;inset:0 0 auto;z-index:20}
.header__inner{display:flex;align-items:center;gap:var(--space-6);height:102px}

.logo{display:inline-flex;align-items:center;gap:9px}
.logo__mark{color:#6c6a48;width:30px;height:30px;flex:none}
.logo__mark svg{width:100%;height:100%}
.logo__word{
  font-family:var(--font-serif);
  font-weight:700;font-size:30px;
  letter-spacing:-.02em;line-height:1;
}

.nav{flex:1;display:flex;justify-content:center}
.nav__list{display:flex;align-items:center;gap:47px}
.nav__list a{
  display:inline-block;position:relative;
  font-size:var(--text-md);font-weight:500;
  color:var(--text-primary);padding:6px 2px;
  transition:color var(--dur) var(--ease);
}
.nav__list a::after{
  content:'';position:absolute;left:2px;right:2px;bottom:1px;
  height:1.5px;background:currentColor;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav__list a:hover{color:var(--accent)}
.nav__list a:hover::after,
.nav__list a[aria-current='true']::after{transform:scaleX(1)}
.nav__list a[aria-current='true']{color:var(--accent)}

.header__cta{flex:none;height:42px;padding:0 22px;font-size:14.5px}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;
  background:transparent;border:1px solid var(--border-strong);
  border-radius:var(--radius-md);cursor:pointer;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-toggle:hover{background:rgba(0,0,0,.03);border-color:#cfc7ba}
.nav-toggle__bars{display:grid;gap:5px;width:18px}
.nav-toggle__bars span{display:block;height:1.6px;background:var(--text-primary);border-radius:2px}

/* =========================================================
   Hero
   ========================================================= */
.hero{position:relative;min-height:779px;display:flex;isolation:isolate;overflow:hidden}
.hero__media{
  position:absolute;inset:0 0 0 auto;
  width:940px;max-width:66%;z-index:-1;
  -webkit-mask-image:linear-gradient(to right,transparent 0,#000 30%);
  mask-image:linear-gradient(to right,transparent 0,#000 30%);
}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:center right}

.hero__inner{display:flex;align-items:flex-start}
.hero__content{padding-top:149px;padding-bottom:var(--space-8);max-width:620px}

.eyebrow{
  display:inline-block;
  background:var(--accent-soft);color:var(--accent-ink);
  font-size:16px;font-weight:500;letter-spacing:-.005em;
  line-height:32px;height:32px;padding:0 17px;
  border-radius:var(--radius-pill);
}

.hero__title{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(42px,1rem + 4.28vw,var(--text-display));
  line-height:1.06;letter-spacing:-.03em;
  margin-top:9px;
}

.hero__lead{
  margin-top:29px;max-width:412px;
  font-size:var(--text-xl);line-height:1.7;
  color:var(--text-secondary);
}

.usp{display:flex;align-items:flex-start;gap:38px;margin-top:36px}
.usp__item{display:flex;flex-direction:column;align-items:center;gap:10px}
.usp__icon{width:40px;height:40px;color:var(--text-primary)}
.usp__icon svg{width:100%;height:100%}
.usp__label{font-size:var(--text-md);font-weight:600;letter-spacing:-.01em;line-height:1.4;white-space:nowrap}

.hero__actions{display:flex;align-items:center;gap:27px;margin-top:36px;flex-wrap:wrap}
.social-proof{display:flex;align-items:center;gap:18px}
.avatars{display:flex}
.avatars li{margin-left:-6px}
.avatars li:first-child{margin-left:0}
.avatars img{width:32px;height:32px;border-radius:50%;border:2px solid var(--page-bg);background:var(--band-bg)}
.social-proof__rating{display:flex;flex-direction:column;gap:1px}
.social-proof__count{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.4}

.stars{display:inline-flex;align-items:center;gap:2px;color:var(--star)}
.stars svg{fill:currentColor}
.stars--lg svg{width:19px;height:19px}
.stars--md svg{width:17px;height:17px}
.stars--sm svg{width:14px;height:14px}

.assurances{display:flex;align-items:center;gap:44px;margin-top:54px;flex-wrap:wrap}
.assurances li{
  display:flex;align-items:center;gap:14px;
  font-size:14.5px;font-weight:600;letter-spacing:-.01em;line-height:1.4;
}
.assurances__icon{width:20px;height:20px;color:var(--gold);flex:none}
.assurances__icon svg{width:100%;height:100%}

/* =========================================================
   Press band
   ========================================================= */
.press{background:var(--band-bg)}
.press__inner{
  width:min(1180px,100% - 64px);margin-inline:auto;
  height:82px;padding-right:40px;
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--space-6);
}
.press__label{font-size:var(--text-md);font-weight:700;letter-spacing:-.015em}
.press__list{display:flex;align-items:center;gap:clamp(28px,5vw,86px);color:#161616}
.press__logo{display:flex;align-items:center;line-height:1}
.press__logo--parents{font-family:var(--font-serif);font-weight:800;font-size:22px;letter-spacing:-.015em}
.press__logo--bump{font-weight:800;font-size:20px;letter-spacing:-.025em}
.press__logo--bump span{font-weight:400;font-size:16px;margin-right:2px}
.press__logo--babylist{font-weight:500;font-size:19px;letter-spacing:-.025em;gap:5px}
.press__logo--babylist svg{width:16px;height:16px}
.press__logo--gh{
  flex-direction:column;align-items:center;gap:0;
  font-weight:800;font-size:10.5px;letter-spacing:.01em;text-transform:uppercase;line-height:1.25;
}
.press__logo--today{flex-direction:column;align-items:center;gap:0}
.press__logo--today svg{width:32px;height:18px}
.press__logo--today span{font-family:var(--font-serif);font-weight:700;font-size:17px;letter-spacing:-.015em}

/* =========================================================
   Problems + video
   ========================================================= */
.problems{padding-top:47px}
.problems__grid{
  display:grid;
  grid-template-columns:340px minmax(0,1fr);
  gap:66px;align-items:start;
}
.problems__copy{padding-top:12px}

.problem-list{margin-top:38px;display:grid;gap:17px}
.problem{display:grid;grid-template-columns:122px minmax(0,1fr);gap:27px;align-items:start}
.problem__img{
  width:122px;height:99px;object-fit:cover;
  border-radius:var(--radius-md);background:var(--band-bg);
}
.problem__text{padding-top:16px}
.problem__title{font-size:var(--text-base);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.problem__desc{
  margin-top:6px;font-size:var(--text-base);line-height:1.55;
  color:var(--text-secondary);max-width:172px;
}

.video{
  position:relative;border-radius:var(--radius-xl);
  overflow:hidden;isolation:isolate;background:var(--band-bg);
}
.video__img{width:100%;aspect-ratio:876/448;object-fit:cover}
.video::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(105% 115% at -2% 104%,
    rgba(42,30,18,.68) 0%,
    rgba(42,30,18,.38) 24%,
    rgba(42,30,18,.10) 42%,
    rgba(42,30,18,0) 56%);
}
.video__play{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);z-index:2;
  width:65px;height:65px;display:grid;place-items:center;
  border:0;border-radius:50%;
  background:rgba(255,255,255,.42);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  color:#fff;cursor:pointer;
  transition:background-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.video__play svg{width:28px;height:28px;margin-left:3px}
.video__play:hover{background:rgba(255,255,255,.58);transform:translate(-50%,-50%) scale(1.04)}
.video__play:active{transform:translate(-50%,-50%) scale(.98)}
.video__play:focus-visible{outline:2px solid #fff;outline-offset:4px}

.video__caption{position:absolute;left:36px;bottom:50px;z-index:2;max-width:300px;color:var(--on-dark)}
.video__title{
  font-family:var(--font-serif);font-weight:500;
  font-size:clamp(24px,1rem + 1.15vw,32px);
  line-height:1.1;letter-spacing:-.015em;
}
.video__desc{
  margin-top:15px;font-size:15.5px;line-height:1.5;
  color:var(--on-dark-soft);max-width:245px;
}

/* =========================================================
   Built different
   ========================================================= */
.build{padding-top:61px;padding-bottom:44px}
.build__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 532px;
  gap:40px;align-items:start;
}
.build__diagram{position:relative;min-height:550px;padding-top:14px}

.diagram{position:absolute;left:0;right:0;top:20px;height:530px}
.diagram__img{position:absolute;left:233px;top:0;width:278px;height:530px;object-fit:contain}
.diagram__lines{position:absolute;left:0;top:0;width:100%;height:100%}
.diagram__lines path{stroke:#c8bbaa;stroke-width:1;fill:none}

.diagram__labels li{position:absolute;top:var(--y)}
.diagram__labels h3{font-size:var(--text-base);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.diagram__labels p{margin-top:7px;font-size:var(--text-sm);line-height:1.5;color:var(--text-secondary)}
.diagram__labels--left li{left:0;width:180px;text-align:right}
.diagram__labels--right li{left:557px;width:151px;text-align:left}

.materials{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:23px;row-gap:27px;
}
.material__img{
  width:100%;aspect-ratio:508/324;object-fit:cover;
  border-radius:var(--radius-lg);background:var(--band-bg);
}
.material__title{margin-top:19px;font-size:var(--text-base);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.material__desc{margin-top:9px;font-size:var(--text-base);line-height:1.6;color:var(--text-secondary);max-width:165px}

/* =========================================================
   Story + comparison
   ========================================================= */
.story{
  display:grid;
  grid-template-columns:845px minmax(0,1fr);
  min-height:371px;background:var(--page-bg);
}
.story__media{position:relative;isolation:isolate;overflow:hidden}
.story__media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.story__media::after{
  content:'';position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(36,26,16,.74) 0%,rgba(36,26,16,.50) 15%,rgba(36,26,16,.10) 33%,rgba(36,26,16,0) 45%),
    linear-gradient(90deg,rgba(249,246,242,0) 78%,var(--page-bg) 100%);
}
.story__copy{position:relative;z-index:2;padding:78px 0 0 112px;max-width:480px;color:var(--on-dark)}
.story__title{
  font-family:var(--font-serif);font-weight:500;
  font-size:clamp(24px,1rem + 1.2vw,var(--text-4xl));
  line-height:1.35;letter-spacing:-.02em;
}
.story__list{margin-top:32px;display:grid;gap:9px}
.story__list li{position:relative;padding-left:25px;font-size:var(--text-md);color:rgba(255,255,255,.95)}
.story__list li::before{
  content:'';position:absolute;left:1px;top:7px;
  width:10px;height:6px;
  border-left:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);
  transform:rotate(-45deg);
}

.compare{display:flex;align-items:flex-start}
.compare__inner{width:100%;padding:34px 97px 0 5px}
/* the reference centres this heading slightly left of the table's own centre */
.compare__title{text-align:center;padding-right:84px;margin-bottom:3px}

.ctable{width:100%;border-collapse:collapse;table-layout:fixed}
.ctable th,.ctable td{text-align:center}
.ctable thead th{padding:0 0 27px;font-size:var(--text-xs);font-weight:400;color:var(--text-secondary)}
.ctable tbody th{
  text-align:left;padding-left:36px;
  font-size:var(--text-xs);font-weight:400;color:var(--text-primary);
}
.ctable tbody tr{height:40px}
/* rows 1-5 sit on a lighter panel; the price row sits on the section background */
.ctable tbody tr:not(:last-child){background:rgba(255,255,255,.55);box-shadow:inset 0 1px 0 var(--hairline)}
.ctable tbody tr:nth-last-child(2){box-shadow:inset 0 1px 0 var(--hairline),inset 0 -1px 0 var(--hairline)}
.ctable__text{font-size:var(--text-xs);color:var(--text-primary)}
.ctable thead th:nth-child(2),.ctable tbody td:nth-child(2){width:128px}
.ctable thead th:nth-child(3),.ctable tbody td:nth-child(3){width:124px}

.mark{display:inline-block;position:relative;vertical-align:middle}
.mark--yes{width:16px;height:16px;border-radius:50%;background:#4d5a26}
.mark--yes::after{
  content:'';position:absolute;left:4px;top:5px;
  width:7px;height:4px;
  border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;
  transform:rotate(-45deg);
}
.mark--no{width:12px;height:12px}
.mark--no::before,.mark--no::after{
  content:'';position:absolute;left:0;top:5px;
  width:12px;height:1.3px;background:#9d9992;
}
.mark--no::before{transform:rotate(45deg)}
.mark--no::after{transform:rotate(-45deg)}

/* =========================================================
   Reviews
   ========================================================= */
.reviews{padding-top:32px;padding-bottom:45px}
.reviews__grid{
  display:grid;grid-template-columns:minmax(0,1fr) 477px;
  gap:24px;align-items:start;
}
.reviews__head{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:26px}
.reviews__head .h-serif--sm{font-size:clamp(23px,1rem + .84vw,28px)}
.reviews__score{font-size:var(--text-xs);font-weight:500;color:var(--text-primary)}

.review-list{margin-top:16px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}
.review{
  display:flex;flex-direction:column;min-height:209px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:30px 17px 22px;
  box-shadow:0 1px 2px rgba(60,50,35,.04);
}
.review__body{margin-top:16px}
.review__quote{font-size:var(--text-xs);font-weight:700;letter-spacing:-.01em;line-height:1.4}
.review__text{margin-top:10px;font-size:var(--text-sm);line-height:1.85;color:var(--text-secondary)}
.review__author{margin-top:auto;padding-top:16px;font-size:var(--text-xs);color:var(--text-secondary)}

.gallery{
  position:relative;display:grid;
  grid-template-columns:158px 82px 84px 147px;
  grid-template-rows:140px 141px;
  gap:5px;height:286px;
}
.gallery__img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-md);background:var(--band-bg)}
.gallery__img--a{grid-column:1;grid-row:1/3}
.gallery__img--b{grid-column:2;grid-row:1}
.gallery__img--c{grid-column:2;grid-row:2}
.gallery__img--d{grid-column:3;grid-row:1}
.gallery__img--e{grid-column:3;grid-row:2}
.gallery__img--f{grid-column:4;grid-row:1/3}
.gallery__badge{
  position:absolute;left:243px;top:50%;
  transform:translate(-50%,-50%);
  width:104px;height:104px;
  display:grid;place-content:center;text-align:center;
  border-radius:50%;background:#fffdfa;color:#6a5533;
  box-shadow:0 4px 14px rgba(60,45,25,.12);
}
.gallery__badge strong{display:block;font-size:19px;font-weight:500;letter-spacing:-.01em;line-height:1.2}
.gallery__badge span{display:block;margin-top:4px;font-size:var(--text-xs);line-height:1.3}

/* =========================================================
   Final CTA
   ========================================================= */
.final{background:var(--band-bg);padding-top:47px;padding-bottom:136px}
.final__grid{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:start;gap:var(--space-8)}
.final__title{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(24px,1rem + .97vw,var(--text-3xl));
  line-height:1.72;letter-spacing:-.02em;
}

.perks{display:flex;gap:20px;padding-top:18px;margin-right:37px}
.perk{width:150px;text-align:center}
.perk__icon{display:block;margin:0 auto;width:29px;height:29px;color:var(--text-primary)}
.perk__icon svg{width:100%;height:100%}
.perk__title{margin-top:25px;font-size:var(--text-sm);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.perk__desc{margin-top:8px;font-size:var(--text-sm);color:var(--text-secondary);line-height:1.3}

.final__cta{display:flex;flex-direction:column;align-items:center;gap:22px}
.final__ships{font-size:var(--text-md);color:var(--text-secondary)}

/* =========================================================
   Responsive — large tablet / small desktop
   ========================================================= */
@media (max-width:1279px){
  .hero__media{width:58%;max-width:58%}
  .hero__content{max-width:520px}
  .nav__list{gap:clamp(20px,3.2vw,47px)}
  .press__list{gap:clamp(20px,4vw,86px)}

  .story{grid-template-columns:56% minmax(0,1fr)}
  .story__copy{padding-left:56px;padding-top:56px}
  .compare__inner{padding-right:var(--space-7)}
  .compare__title{padding-right:0}

  /* the annotated diagram needs the reference width: stack it below 1280 */
  .build__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-9)}
  .build__diagram{min-height:0;padding-top:0}
  .diagram{position:static;height:auto;display:flex;flex-direction:column;align-items:center;margin-top:var(--space-7)}
  .diagram__img{position:static;width:min(278px,62%);height:auto}
  .diagram__lines{display:none}
  .diagram__labels{
    display:grid;width:100%;
    grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
    gap:var(--space-5) var(--space-6);
    margin-top:var(--space-7);
  }
  .diagram__labels--right{margin-top:var(--space-5)}
  .diagram__labels li{position:static;width:auto;left:auto;right:auto;text-align:left}

  .reviews__grid{grid-template-columns:minmax(0,1fr) 38%}
  .gallery{grid-template-columns:1.9fr 1fr 1fr 1.75fr}
  .gallery__badge{left:50%}
  .perks{gap:32px;margin-right:0}
  .perk{width:auto;min-width:120px}
  .final__grid{gap:var(--space-6)}
}

/* =========================================================
   Responsive — tablet
   ========================================================= */
@media (max-width:1023px){
  .shell{padding-inline:var(--space-7)}

  /* header */
  .nav-toggle{display:inline-flex;order:3}
  .header__inner{height:auto;min-height:80px;gap:var(--space-4);flex-wrap:wrap;padding-block:var(--space-4)}
  .header__cta{order:2;margin-left:auto}
  .nav{order:4;flex:0 0 100%;flex-wrap:wrap;display:none;padding-bottom:var(--space-5)}
  .nav.is-open{display:block}
  .nav__list{flex-direction:column;align-items:flex-start;gap:var(--space-1)}
  .nav__list a{padding:12px 0;font-size:var(--text-lg);width:100%}
  .site-header{position:relative;background:var(--page-bg)}

  /* hero */
  .hero{min-height:0;display:block}
  .hero__media{
    position:relative;inset:auto;z-index:0;
    width:100%;max-width:none;
    height:clamp(320px,52vw,480px);
    margin:var(--space-7) 0 0;
    -webkit-mask-image:none;mask-image:none;
    border-radius:var(--radius-xl);overflow:hidden;
  }
  .hero__media img{object-position:center}
  .hero__inner{display:block}
  .hero__content{padding-top:var(--space-8);padding-bottom:0;max-width:none}
  .hero__lead{max-width:520px}
  .usp{margin-top:var(--space-7)}
  .hero__actions{margin-top:var(--space-7)}
  .assurances{margin-top:var(--space-7);gap:var(--space-6)}

  /* problems */
  .problems{padding-top:var(--space-9)}
  .problems__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-8)}
  .problems__copy{padding-top:0}
  .problem__desc{max-width:none}
  .video__caption{left:32px;bottom:32px;max-width:60%}
  .video__desc{max-width:none}

  /* build */
  .build{padding-top:var(--space-9);padding-bottom:var(--space-9)}
  .build__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-9)}
  .diagram__img{width:min(278px,58%)}
  .diagram__labels{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:var(--space-5) var(--space-7)}
  .lb{display:none}
  .material__desc{max-width:none}

  /* story */
  .story{grid-template-columns:minmax(0,1fr)}
  .story__media{min-height:420px}
  .story__media::after{
    background:linear-gradient(180deg,rgba(36,26,16,.25) 0%,rgba(36,26,16,.7) 65%),
               linear-gradient(90deg,rgba(36,26,16,.5),rgba(36,26,16,.1) 70%);
  }
  .story__copy{padding:var(--space-8) var(--space-7);max-width:none}
  .compare__inner{padding:var(--space-8) var(--space-7)}
  .ctable tbody th{padding-left:var(--space-4)}

  /* reviews */
  .reviews{padding-top:var(--space-9);padding-bottom:var(--space-9)}
  .reviews__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-8)}
  .reviews__head{margin-top:0}
  .gallery{height:340px;grid-template-columns:1.9fr 1fr 1fr 1.75fr;grid-template-rows:1fr 1fr}

  /* final */
  .final{padding-top:var(--space-9);padding-bottom:var(--space-9)}
  .final__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-8);justify-items:start}
  .perks{justify-self:start;gap:var(--space-8);padding-top:0;margin-right:0}
  .final__cta{align-items:flex-start}
}

/* =========================================================
   Responsive — mobile
   ========================================================= */
@media (max-width:639px){
  .shell{padding-inline:var(--space-5)}

  /* keep logo, CTA and menu on a single row */
  .header__inner{gap:var(--space-3)}
  .logo{gap:7px}
  .logo__mark{width:26px;height:26px}
  .logo__word{font-size:24px}
  .header__cta{height:40px;padding:0 14px;font-size:13.5px}

  .hero__content{padding-top:var(--space-7)}
  .hero__title{margin-top:var(--space-4)}
  .hero__lead{margin-top:var(--space-4);font-size:var(--text-lg);line-height:1.6}
  .usp{gap:var(--space-4);margin-top:var(--space-6);justify-content:space-between}
  .usp__icon{width:32px;height:32px}
  .usp__label{font-size:var(--text-sm);white-space:normal;text-align:center}
  .hero__actions{gap:var(--space-5);align-items:flex-start}
  .btn--lg,.btn--xl{width:100%;min-width:0}
  .assurances{gap:var(--space-4) var(--space-5)}
  .assurances li{font-size:var(--text-sm);gap:10px}
  .hero__media{height:280px}

  .press__inner{
    height:auto;flex-direction:column;align-items:flex-start;
    gap:var(--space-4);padding-block:var(--space-6);
  }
  .press__list{flex-wrap:wrap;gap:var(--space-5) var(--space-6)}

  .problem{grid-template-columns:96px minmax(0,1fr);gap:var(--space-4)}
  .problem__img{width:96px;height:78px}
  .problem__text{padding-top:8px}

  .video{background:transparent;overflow:visible;border-radius:0}
  .video__img{border-radius:var(--radius-lg)}
  .video::after{inset:0 0 auto 0;height:0;padding-bottom:51.14%;border-radius:var(--radius-lg)}
  .video__play{top:25.57%}
  .video__caption{position:static;max-width:none;margin-top:var(--space-4);color:inherit}
  .video__title{color:var(--text-primary)}
  .video__desc{color:var(--text-secondary);font-size:var(--text-md);margin-top:var(--space-2)}

  .materials{grid-template-columns:minmax(0,1fr);row-gap:var(--space-6)}
  .diagram__img{width:70%}
  .diagram__labels{grid-template-columns:minmax(0,1fr)}

  .story__media{min-height:360px}
  .story__copy{padding:var(--space-7) var(--space-5)}
  .compare__inner{padding:var(--space-7) var(--space-5)}
  .ctable thead th:nth-child(2),.ctable tbody td:nth-child(2){width:86px}
  .ctable thead th:nth-child(3),.ctable tbody td:nth-child(3){width:74px}

  .review-list{grid-template-columns:minmax(0,1fr);gap:var(--space-4)}
  .review{min-height:0;padding:22px 18px}
  .gallery{height:auto;grid-template-columns:1.6fr 1fr 1fr;grid-template-rows:120px 120px}
  .gallery__img--f{display:none}
  .gallery__badge{width:88px;height:88px}
  .gallery__badge strong{font-size:17px}

  .perks{flex-direction:column;gap:var(--space-6)}
  .perk{
    width:auto;text-align:left;display:grid;
    grid-template-columns:29px 1fr;column-gap:var(--space-4);align-items:center;
  }
  .perk__icon{grid-row:1/3;margin:0}
  .perk__title{margin-top:0}
  .perk__desc{margin-top:2px}
  .final__cta{width:100%;align-items:stretch;text-align:center}
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .btn:hover,.video__play:hover{transform:none}
  .video__play:hover{transform:translate(-50%,-50%)}
}