/* ── CSS ring: @property makes --ring-angle animatable as an angle type ── */
@property --ring-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

@keyframes ring-spin { to { --ring-angle: 360deg; } }

:root {
  --green:        #5aff28;
  --green-dim:    rgba(90,255,40,.10);
  --green-glow:   rgba(90,255,40,.20);
  --green-border: rgba(90,255,40,.18);
  --surface:      #000;
  --panel:        rgba(255,255,255,.04);
  --panel-b:      rgba(255,255,255,.08);
  --text:         #fff;
  --dim:          rgba(255,255,255,.70);
  --dim2:         rgba(255,255,255,.50);

  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
  --mono: 'SF Mono','Fira Code','JetBrains Mono',monospace;

  --r-sm: 6px; --r-md: 8px; --r-lg: 12px; --r-xl: 14px;

  /* ── 5 named font sizes — use ONLY these, no raw rem values ─────── */
  --fs-xxl: clamp(3.2rem, 7vw,  6.5rem);      /* cover / CTA giant headlines */
  --fs-xl:  clamp(2.2rem, 4.5vw, 4rem);       /* section big-title           */
  --fs-l:   clamp(1.3rem, 2vw,  1.75rem);     /* card titles / sub-headings  */
  --fs-m:   clamp(1rem,   1.4vw, 1.2rem);     /* body / lead / faq           */
  --fs-s:   clamp(0.9rem, 1vw,  1rem);        /* labels / badges / meta      */
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{width:100%;height:100%;overflow:hidden;background:#000}
body{width:100%;height:100%;overflow:hidden;background:transparent;font-family:var(--font);color:var(--text);-webkit-font-smoothing:antialiased}

/* ── Particle canvas (inside .deck, z-index:0 — below slides at z-index:1) ── */
#particles{position:absolute;inset:0;z-index:0;pointer-events:none}

/* ── CSS ring — EdTech AI style ─────────────────────────────────────────── */
/* Faint static orbit track — just a ring outline */
.ring-track{
  position:absolute;
  width:min(78vh,78vw);height:min(78vh,78vw);
  border-radius:50%;
  border:1px solid rgba(90,255,40,.10);
  box-shadow:0 0 0 1px rgba(90,255,40,.04);
  top:50%;left:52%;
  transform:translate(-50%,-54%);
  z-index:0;pointer-events:none;
}
/* Full-orbit ring — entire circle visible, bright hot-spot rotates (Aura style) */
.ring-comet{
  position:absolute;
  width:min(78vh,78vw);height:min(78vh,78vw);
  border-radius:50%;
  top:50%;left:52%;
  transform:translate(-50%,-54%);
  z-index:0;pointer-events:none;
  /* Full ring: dim all the way around, brightens into a hot-spot at the head */
  background:conic-gradient(
    from var(--ring-angle),
    rgba(90,255,40,.05)   0%,
    rgba(90,255,40,.03)  15%,
    rgba(90,255,40,.03)  35%,
    rgba(90,255,40,.07)  55%,
    rgba(90,255,40,.18)  70%,
    rgba(90,255,40,.45)  83%,
    rgba(90,255,40,.80)  91%,
    rgba(180,255,120,1)  95.5%,
    rgba(255,255,255,1)  97%,
    rgba(90,255,40,.80)  98.5%,
    rgba(90,255,40,.05) 100%
  );
  animation:ring-spin 9s linear infinite;
  /* Thin ring band: hollow center, visible ring, transparent outside */
  -webkit-mask:radial-gradient(circle,transparent 46%,#000 47%,#000 50.5%,transparent 51.5%);
  mask:radial-gradient(circle,transparent 46%,#000 47%,#000 50.5%,transparent 51.5%);
}
/* Diffuse green bloom behind the head — separate element so it can blur */
.ring-glow{
  position:absolute;
  width:80px;height:80px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(90,255,40,.45) 0%,rgba(90,255,40,.15) 50%,transparent 100%);
  filter:blur(10px);
  z-index:0;pointer-events:none;
  /* JS will position this each frame — starts hidden */
  top:0;left:0;opacity:0;
}

/* ── Slide engine ───────────────────────── */
.deck{
  position:relative;width:100vw;width:100svw;height:100vh;height:100svh;
  overflow:hidden;outline:none;background:transparent;
}

.slide{
  position:absolute;inset:0;display:flex;flex-direction:column;
  padding:3rem 5.5rem;
  z-index:1;isolation:isolate;
  transform:translateY(100%);
  transition:transform .52s cubic-bezier(.42,0,.22,1);
  will-change:transform;pointer-events:none;overflow:hidden;user-select:none;
}
.slide.active{transform:translateY(0);pointer-events:auto;user-select:text}
.slide.past{transform:translateY(-100%)}

/* no slide::before blobs */

/* no per-slide gradient blobs — canvas ring + star field handle all decoration */

/* ── Enter animations ───────────────────── */
[data-anim]{opacity:0;transform:translateY(16px);transition:none}
[data-anim].in{opacity:1;transform:translateY(0);transition:opacity .45s ease,transform .45s ease}

[data-anim="left"]{opacity:0;transform:translateX(-24px);transition:none}
[data-anim="left"].in{opacity:1;transform:translateX(0);transition:opacity .45s ease,transform .45s ease}

[data-anim]:nth-child(1).in{transition-delay:.00s}
[data-anim]:nth-child(2).in{transition-delay:.07s}
[data-anim]:nth-child(3).in{transition-delay:.14s}
[data-anim]:nth-child(4).in{transition-delay:.21s}
[data-anim]:nth-child(5).in{transition-delay:.28s}
[data-anim]:nth-child(6).in{transition-delay:.35s}
[data-anim]:nth-child(7).in{transition-delay:.42s}
[data-anim]:nth-child(8).in{transition-delay:.49s}
[data-anim]:nth-child(9).in{transition-delay:.55s}
[data-anim]:nth-child(10).in{transition-delay:.61s}
[data-anim]:nth-child(11).in{transition-delay:.67s}
[data-anim]:nth-child(12).in{transition-delay:.73s}

/* ── Word-split animation spans ─────────── */
.word{display:inline-block}

/* ── Shimmer on green accent words ──────── */
@keyframes shimmer{from{background-position:0% center}to{background-position:200% center}}
.cover-title em,.big-title em,.cta-title em,.slide-title em{
  background:linear-gradient(90deg,#5aff28 0%,#a8ff78 45%,#00ffaa 70%,#5aff28 100%);
  background-size:200% auto;
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  animation:shimmer 4s linear infinite;
  font-style:normal;
}

/* ── Dot nav ────────────────────────────── */
.dots-nav{position:fixed;right:.5rem;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:.5rem;z-index:200}
.dot{width:6px;height:6px;border-radius:50%;border:none;background:rgba(255,255,255,.2);cursor:pointer;padding:0;transition:background .2s,transform .2s}
.dot.active{background:var(--green);transform:scale(1.5)}
.dot:hover{background:rgba(255,255,255,.55)}
.kbd-hint{position:fixed;bottom:1.5rem;right:1.5rem;font-size:.75rem;color:rgba(255,255,255,.18);font-family:var(--mono);letter-spacing:.05em;pointer-events:none;z-index:200}

/* ── Shared typography ──────────────────── */
.eyebrow{font-size:1rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--green);margin-bottom:1.5rem}
.rule{width:3rem;height:2px;background:var(--green);margin-bottom:1.75rem}
.big-title{font-size:var(--fs-xl);font-weight:800;line-height:1.05;letter-spacing:-.03em;margin-bottom:1.25rem}

/* ── Slide Title component — reusable animated headline ─ */
.slide-title{font-size:var(--fs-xl);font-weight:800;line-height:1.05;letter-spacing:-.03em;margin-bottom:1.25rem}
.title-line{display:block}
.slide-title--hero{font-size:var(--fs-xxl);line-height:.95;letter-spacing:-.04em}
.slide-title--feature{font-size:var(--fs-l);line-height:1.1;margin-bottom:.75rem}

.lead{font-size:var(--fs-m);color:var(--text);line-height:1.65;max-width:38rem;margin-bottom:1rem}
.lead strong{color:var(--text)}
.lead em{color:var(--green);font-style:normal}

/* ── Panel / card ───────────────────────── */
.panel{background:var(--panel);border:1px solid var(--panel-b);border-radius:var(--r-xl);padding:1.25rem 1.5rem;backdrop-filter:blur(12px)}

/* ── Buttons ────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--green);color:#000;font-weight:700;font-size:1rem;padding:.8rem 1.6rem;border-radius:var(--r-lg);text-decoration:none;border:none;cursor:pointer;transition:background .25s,transform .25s;white-space:nowrap}
.btn:hover{background:#32c800;transform:translateY(-2px)}
.btn-ghost{background:none;color:var(--dim);border:none;font-size:.9rem;padding:.65rem 0;text-decoration:none;transition:color .15s}
.btn-ghost:hover{color:var(--text)}

/* ── ── ── SLIDES ── ── ── */

/* COVER */
.slide-cover{justify-content:center;gap:0}
.cover-title{font-size:var(--fs-xxl);font-weight:800;line-height:.95;letter-spacing:-.04em;margin-bottom:1rem}
.cursor{color:var(--green);animation:blink 1.1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.cover-sub{font-size:var(--fs-m);color:var(--text);max-width:34rem;line-height:1.55;margin-bottom:2rem}
.cover-sub strong{color:var(--text)}
.cover-ctas{display:flex;align-items:center;gap:1.25rem;flex-wrap:nowrap;margin-bottom:2rem}
.trust-bar{display:none}
.cover-meta{display:none}
.trust-sep{opacity:.4}

/* PROBLEM */
.slide-problem{justify-content:center;gap:0}
.bug-finders{display:flex;flex-direction:column;margin-top:auto;margin-bottom:0;max-width:64rem;width:100%}
.bug-punch{margin-bottom:auto}
.bug-finder{display:flex;align-items:baseline;gap:.75rem;padding:.45rem 1.25rem;border-bottom:1px solid rgba(255,255,255,.07);color:var(--dim)}
.bug-finder:last-child{border-bottom:none}
.bf-num{font-size:var(--fs-s);font-weight:800;color:var(--dim2);min-width:2.25rem;letter-spacing:.06em;font-variant-numeric:tabular-nums;flex-shrink:0}
.bf-text{font-size:var(--fs-l);font-weight:600;line-height:1.25}
.bf-answer{color:var(--green);background:rgba(90,255,40,.05);border-radius:var(--r-md);margin-top:.5rem;border:1px solid rgba(90,255,40,.15)}
.bf-answer .bf-num{color:var(--green)}
.bug-punch{font-size:var(--fs-m);color:var(--dim);font-style:italic;padding-left:1.25rem;margin-top:.75rem}

/* VIDEO slides */
.slide-video{flex-direction:row;align-items:stretch;gap:3rem;padding:3rem 4rem}
.video-side{flex:1;display:flex;align-items:center;justify-content:center;min-width:0}
.video-side video{width:100%;max-height:78vh;object-fit:cover;border-radius:var(--r-xl);border:1px solid var(--panel-b)}
.video-text{flex:0 0 22rem;display:flex;flex-direction:column;justify-content:center;gap:1rem}
.video-num{font-size:1rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.video-title{font-size:var(--fs-l);font-weight:800;line-height:1.1}
.video-desc{font-size:var(--fs-m);color:var(--text);line-height:1.6}

/* HOW IT WORKS */
.slide-how{justify-content:flex-start}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:auto;margin-bottom:auto;align-items:start;align-content:start}
.pillar{padding:2rem;border-radius:var(--r-xl);border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.07);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);display:flex;flex-direction:column;align-self:start}
.pillar-header{background:none;border:none;color:var(--text);text-align:left;cursor:pointer;display:flex;flex-direction:column;width:100%;font-family:var(--font);padding:0}
.pillar-step{font-size:3.5rem;font-weight:800;color:rgba(255,255,255,.22);line-height:1;margin-bottom:.75rem;letter-spacing:-.04em}
.pillar-title{font-size:var(--fs-l);font-weight:700;margin-bottom:.6rem;line-height:1.25}
.pillar-chevron{display:none;font-size:.8rem;color:var(--dim);transition:transform .25s;align-self:flex-end;position:absolute;top:1.5rem;right:1.5rem}
.pillar.open .pillar-chevron{transform:rotate(180deg);color:var(--green)}
.pillar-text{font-size:var(--fs-m);color:var(--text);line-height:1.6}

/* BEFORE / AFTER */
.slide-ba{padding:2.5rem 5.5rem;justify-content:flex-start}
.slide-ba .ba-card{margin-top:auto;margin-bottom:auto}
.ba-card{margin-top:1.5rem;width:100%;max-width:860px;align-self:center;border-radius:var(--r-xl);border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.07);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);overflow:hidden}
.ba-header{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid rgba(255,255,255,.12)}
.ba-col-label{padding:.75rem 1.5rem;font-size:var(--fs-s);font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.ba-col-old{color:rgba(255,255,255,.9);border-right:1px solid rgba(255,255,255,.08)}
.ba-col-new{color:var(--green)}
.ba-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid rgba(255,255,255,.06)}
.ba-row:last-child{border-bottom:none}
.ba-old{display:flex;flex-direction:column;gap:.2rem;padding:.9rem 1.5rem;border-right:1px solid rgba(255,255,255,.06)}
.ba-old-main{font-size:var(--fs-m);color:rgba(255,255,255,.9);text-decoration:line-through;text-decoration-color:rgba(255,255,255,.5)}
.ba-cost{font-size:var(--fs-s);color:rgba(255,255,255,.9);font-family:var(--mono);font-weight:500}
.ba-new{display:flex;flex-direction:column;gap:.2rem;padding:.9rem 1.5rem;background:rgba(90,255,40,.03)}
.ba-new-main{font-size:var(--fs-m);color:var(--text);font-weight:600}
.ba-new-detail{font-size:var(--fs-s);color:rgba(255,255,255,.6)}

/* PRICING CAROUSEL */
.slide-pricing{justify-content:flex-start}
.pc-wrap{position:relative;display:flex;align-items:center;justify-content:center;margin-top:1.5rem;width:100%;overflow:visible}
.pc-viewport{position:relative;width:100%;height:560px;display:flex;align-items:center;justify-content:center;perspective:1400px;overflow:visible}
.pc-track{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;transform-style:preserve-3d}
.pc-card{position:absolute;width:26rem;height:520px;border-radius:var(--r-xl);border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.07);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:2rem;display:flex;flex-direction:column;overflow:hidden;transition:transform .5s ease-out,opacity .5s ease-out,filter .5s ease-out,box-shadow .5s ease-out;will-change:transform,opacity}
.pc-card-popular{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.08)}
.pc-inactive a,.pc-inactive button{pointer-events:none}
.pc-inactive:hover{opacity:.85!important}
.price-toprow{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.price-name{font-size:var(--fs-s);font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.9}
.price-badge{display:inline-flex;align-items:center;gap:.3rem;font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;border:1px solid rgba(255,255,255,.4);border-radius:4px;padding:.22rem .55rem;white-space:nowrap;color:rgba(255,255,255,.8)}
.pc-card-popular .price-badge{border-color:rgba(90,255,40,.65);color:var(--green)}
.price-price{font-size:2.4rem;font-weight:800;line-height:1;color:var(--text);margin-bottom:.3rem}
.price-price .per{font-size:var(--fs-s);font-weight:400;color:rgba(255,255,255,.75);margin-left:.2rem}
.price-desc{font-size:var(--fs-s);color:var(--text);line-height:1.55;margin-bottom:1rem}
.price-actions{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:1rem}
.price-divider{height:1px;background:rgba(255,255,255,.12);margin-bottom:.9rem}
.price-features{list-style:none;display:flex;flex-direction:column;gap:.5rem;flex:1}
.price-features li{font-size:var(--fs-s);color:var(--text);display:flex;align-items:flex-start;gap:.5rem;line-height:1.4}
.price-features li::before{content:'✓';color:var(--green);flex-shrink:0;font-weight:700;margin-top:.05rem}
.price-cta{display:inline-flex;align-items:center;justify-content:center;padding:.65rem 1.1rem;border-radius:var(--r-md);font-size:var(--fs-s);font-weight:600;text-decoration:none;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}
.price-cta.green{background:var(--green);color:#000}
.price-cta.green:hover{background:#32c800}
.price-cta.ghost{border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.75);background:transparent}
.price-cta.ghost:hover{border-color:rgba(255,255,255,.4);color:var(--text)}
.price-cta.frosted{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:var(--text)}
.price-cta.frosted:hover{background:rgba(255,255,255,.13)}

.pricing-sub{font-size:var(--fs-s);color:var(--dim);margin-bottom:1.25rem;letter-spacing:.02em}

/* CALCULATOR */
.slide-calc{padding:2.5rem 5.5rem}
.calc-inner{display:flex;gap:3rem;align-items:flex-start;margin-top:auto;margin-bottom:auto}
.calc-controls{flex:0 0 18rem}
.calc-templates{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.25rem}
.tpl-btn{background:var(--panel);border:1px solid var(--panel-b);color:var(--dim);font-size:var(--fs-s);padding:.5rem 1rem;border-radius:var(--r-md);cursor:pointer;text-align:left;transition:all .15s}
.tpl-btn.active{border-color:var(--green-border);background:var(--green-dim);color:var(--text)}
.tpl-btn:hover:not(.active){border-color:rgba(255,255,255,.18);color:var(--text)}
.calc-label{font-size:var(--fs-s);text-transform:uppercase;letter-spacing:.1em;color:var(--dim);margin-bottom:.5rem}
.calc-runs{font-size:.95rem;color:var(--text);font-family:var(--mono)}
.calc-runs span{color:var(--green);font-weight:700}
.calc-bars{flex:1;display:flex;flex-direction:column;gap:.6rem}
.calc-bar-row{display:flex;align-items:center;gap:.75rem}
.calc-bar-name{font-size:var(--fs-s);color:var(--dim);width:8rem;flex-shrink:0;text-align:right}
.calc-bar-name.ours{color:var(--text);font-weight:600}
.calc-bar-track{flex:1;height:8px;background:rgba(255,255,255,.07);border-radius:4px;overflow:hidden}
.calc-bar-fill{height:100%;background:rgba(255,255,255,.2);border-radius:4px;transition:width .5s ease}
.calc-bar-fill.ours{background:var(--green)}
.calc-bar-cost{font-size:var(--fs-s);font-family:var(--mono);color:var(--dim);width:5rem;flex-shrink:0}
.calc-bar-cost.ours{color:var(--green);font-weight:700}
.calc-note{margin-top:.75rem;font-size:var(--fs-s);color:var(--dim2);line-height:1.5}

/* FAQ */
.slide-faq{padding:2.5rem 5.5rem;overflow:hidden}
.faq-heading{display:flex;align-items:baseline;gap:1.25rem;margin-bottom:.75rem}
.faq-heading .big-title{margin-bottom:0}
.faq-count{font-size:1rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--green);opacity:.7}
.faq-list{margin-top:auto;margin-bottom:auto;max-width:none;display:flex;flex-direction:column;border-radius:var(--r-xl);border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.07);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:0 2rem}
.faq-item{border-bottom:1px solid rgba(255,255,255,.08)}
.faq-item:last-child{border-bottom:none}
.faq-q{width:100%;background:none;border:none;color:var(--text);font-size:var(--fs-m);font-weight:500;padding:1.1rem 0;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-family:var(--font)}
.faq-q:hover{opacity:.75}
.faq-chevron{flex-shrink:0;font-size:.8rem;transition:transform .25s;color:var(--dim)}
.faq-item.open .faq-chevron{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;font-size:var(--fs-m);color:var(--text);line-height:1.7}
.faq-a-inner{padding:0 0 1.25rem}
.faq-a-inner ul{list-style-type:disc;margin:.5rem 0 .75rem 1.5rem;padding:0}
.faq-a-inner li{margin-bottom:.35rem;color:rgba(255,255,255,.75)}
.faq-a-inner strong{font-weight:600;color:var(--green)}
.faq-item.open .faq-a{max-height:40rem}

/* CTA */
.slide-cta{justify-content:center;align-items:flex-start}
.cta-title{font-size:var(--fs-xxl);font-weight:800;line-height:.95;letter-spacing:-.04em;margin-bottom:1rem}
.cta-sub{font-size:var(--fs-m);color:var(--text);margin-bottom:2rem}
.cta-links{display:flex;gap:1.5rem;font-size:.88rem;margin-top:1.5rem}
.cta-links a{color:var(--dim);text-decoration:none;transition:color .15s}
.cta-links a:hover{color:var(--green)}

/* ── Responsive ─────────────────────────── */
@media(max-width:900px){
  #particles{display:none}
  .slide{padding:2rem 2rem}
  .slide-video{flex-direction:column;padding:2rem}
  .video-text{flex:none}
  .pillars{grid-template-columns:1fr;gap:.75rem;margin-top:1.5rem;margin-bottom:0}
  .slide-ba .ba-card,.calc-inner,.faq-list,.bug-finders{margin-top:1.5rem;margin-bottom:0}
  .bug-punch{margin-bottom:0}
  .pillar{position:relative;padding:1.25rem 1.5rem}
  .pillar-header{flex-direction:row;align-items:center;gap:.75rem}
  .pillar-step{font-size:1.4rem;margin-bottom:0;min-width:2.5rem;opacity:.6;letter-spacing:-.02em}
  .pillar-title{font-size:var(--fs-m);margin-bottom:0;flex:1;line-height:1.3}
  .pillar-chevron{display:block}
  .pillar-text{max-height:0;overflow:hidden;transition:max-height .35s ease,margin .35s ease;margin-top:0}
  .pillar.open .pillar-text{max-height:12rem;margin-top:.75rem}
  .pricing-grid{flex-direction:column}
  .calc-inner{flex-direction:column}
  .calc-controls{flex:none;width:100%}
  .big-title,.slide-title:not(.slide-title--hero):not(.slide-title--feature){font-size:2.4rem}
  .cover-title,.slide-title--hero{font-size:3rem}
  .ba-table{max-width:100%}
}

/* BA stacks vertically on narrow screens */
@media(max-width:640px){
  .slide-ba{padding:1.5rem 1.5rem}
  .ba-header{grid-template-columns:1fr 1fr}
  .ba-row{grid-template-columns:1fr 1fr}
  .ba-col-label,.ba-old,.ba-new{padding:.75rem 1rem}
  .ba-old-main,.ba-new-main{font-size:.85rem}
  .ba-cost,.ba-new-detail{font-size:.75rem}
}

/* Tight mobile layout */
@media(max-width:480px){
  .slide{padding:1.25rem 1.25rem}
  .slide-ba,.slide-faq,.slide-calc{padding:1.25rem 1.25rem}
  .faq-list{max-width:none}
  .kbd-hint{display:none}
  .cover-title,.slide-title--hero{font-size:2.2rem}
  .big-title,.slide-title:not(.slide-title--hero):not(.slide-title--feature){font-size:2rem}
  .faq-heading{flex-direction:column;gap:.25rem;align-items:flex-start}
}