/* ==========================================================================
   Telco Help | bespoke visual identity (telcohelp.au)
   "Stop overpaying your telco": a sharp, trustworthy money-saving advocate.
   Editorial serif display (Newsreader) + a precise grotesque (Spline Sans),
   a confident savings-green on a cool clean slate, recovered-money gold.
   Centrepiece: a scroll-driven bill audit, line items get marked up and the
   saving resolves. Distinct from the fall-monitoring look; no dashboard template.
   ========================================================================== */
:root{
  --bg:        oklch(0.985 0.006 230);
  --bg-2:      oklch(0.962 0.011 230);
  --paper:     oklch(1 0 0);
  --ink:       oklch(0.26 0.035 250);
  --ink-soft:  oklch(0.40 0.030 250);
  --muted:     oklch(0.52 0.024 250);

  --brand:     oklch(0.45 0.115 248);   /* trustworthy advocate blue */
  --brand-ink: oklch(0.38 0.115 250);
  --brand-deep:oklch(0.25 0.060 252);
  --night:     oklch(0.235 0.045 254);

  --save:      oklch(0.62 0.155 152);   /* confident savings green */
  --save-ink:  oklch(0.46 0.130 152);
  --save-soft: oklch(0.93 0.045 152);
  --gold:      oklch(0.74 0.135 86);     /* recovered money */
  --gold-ink:  oklch(0.55 0.115 78);

  --over:      oklch(0.58 0.185 24);     /* overcharge / flagged red */
  --over-soft: oklch(0.94 0.04 30);

  --line:      oklch(0.90 0.012 240);
  --line-2:    oklch(0.84 0.016 240);
  --on-dark:   oklch(0.97 0.010 230);

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Spline Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --num: "Spline Sans", ui-sans-serif, system-ui, sans-serif;

  --maxw: 1180px;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --radius: 18px; --radius-lg: 28px; --radius-sm: 12px;
  --shadow: 0 2px 6px oklch(0.25 0.05 252 / .05), 0 24px 60px -24px oklch(0.25 0.06 252 / .28);
  --shadow-sm: 0 1px 3px oklch(0.25 0.05 252 / .06), 0 10px 24px -16px oklch(0.25 0.06 252 / .22);

  --z-nav:200;
  --ease: cubic-bezier(.16,1,.3,1);
}
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0; background:var(--bg); color:var(--ink); font-family:var(--sans);
  font-size:clamp(1.02rem,.99rem + .18vw,1.13rem); line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{ max-width:100%; display:block; }
a{ color:var(--brand-ink); }
::selection{ background:oklch(0.93 0.045 152 / .85); }

h1,h2,h3{ font-family:var(--serif); font-weight:520; line-height:1.06;
  letter-spacing:-0.014em; text-wrap:balance; margin:0; color:var(--ink);
  font-optical-sizing:auto; overflow-wrap:break-word; }
h1{ font-size:clamp(2.5rem,1.6rem + 4vw,4.7rem); }
h2{ font-size:clamp(1.95rem,1.4rem + 2.5vw,3.25rem); }
h3{ font-size:clamp(1.25rem,1.08rem + .85vw,1.6rem); }
p{ margin:0; text-wrap:pretty; overflow-wrap:break-word; }
.lead{ font-size:clamp(1.16rem,1.04rem + .58vw,1.46rem); line-height:1.5; color:var(--ink-soft); }
.kicker{ font-family:var(--sans); font-weight:700; font-size:.82rem; letter-spacing:.10em;
  text-transform:uppercase; color:var(--save-ink); display:inline-flex; gap:.5rem; align-items:center; margin:0 0 1rem; }
.kicker::before{ content:""; width:1.6rem; height:2px; background:var(--save); border-radius:2px; flex:none; }

.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.measure{ max-width:62ch; }
.skip{ position:absolute; left:-999px; }
.skip:focus{ left:1rem; top:1rem; z-index:999; background:var(--ink); color:#fff; padding:.7rem 1rem; border-radius:8px; }
:where(a,button,summary):focus-visible{ outline:3px solid var(--save); outline-offset:3px; border-radius:6px; }

/* ---------- buttons ---------- */
.btn{ display:inline-flex; align-items:center; gap:.5rem; font-family:var(--sans); font-weight:600; white-space:nowrap;
  font-size:1rem; line-height:1; padding:.95rem 1.5rem; border-radius:12px; border:1.5px solid transparent;
  text-decoration:none; cursor:pointer; transition:transform .4s var(--ease), background-color .25s, box-shadow .4s, border-color .25s; }
.btn--primary{ background:var(--save); color:oklch(0.99 0.01 150); box-shadow:0 8px 22px -10px oklch(0.62 0.155 152 / .7); }
.btn--primary:hover{ background:var(--save-ink); transform:translateY(-2px); box-shadow:0 16px 34px -10px oklch(0.62 0.155 152 / .75); }
.btn--ghost{ background:transparent; color:var(--brand-ink); border-color:var(--line-2); }
.btn--ghost:hover{ border-color:var(--brand); transform:translateY(-2px); }
.btn--lg{ padding:1.1rem 1.85rem; font-size:1.06rem; }
.btn--on-dark{ background:var(--on-dark); color:var(--brand-deep); }
.btn--on-dark:hover{ background:#fff; }
.textlink{ color:var(--brand-ink); font-weight:600; text-decoration:none; border-bottom:2px solid oklch(0.62 0.155 152 / .5); padding-bottom:1px; transition:border-color .25s; }
.textlink:hover{ border-color:var(--save); }
@media (prefers-reduced-motion: reduce){ .btn:hover{ transform:none; } }

/* ---------- header ---------- */
.site{ position:sticky; top:0; z-index:var(--z-nav); background:oklch(0.985 0.006 230 / .82);
  backdrop-filter:blur(12px) saturate(1.3); border-bottom:1px solid transparent; transition:border-color .3s, background-color .3s; }
.site.is-stuck{ border-color:var(--line); }
.site__in{ display:flex; align-items:center; justify-content:space-between; min-height:72px; gap:1rem; }
.brand{ display:inline-flex; align-items:center; gap:.55rem; text-decoration:none; color:var(--ink);
  font-family:var(--serif); font-weight:560; font-size:1.32rem; letter-spacing:-0.02em; }
.brand__mark{ width:30px; height:30px; flex:none; }
.nav{ display:flex; align-items:center; gap:1.5rem; }
.nav a:not(.btn){ color:var(--ink-soft); text-decoration:none; font-weight:500; font-size:.97rem; }
.nav a:not(.btn):hover,.nav a[aria-current="page"]{ color:var(--brand-ink); }
.nav__toggle{ display:none; background:var(--paper); border:1.5px solid var(--line-2); color:var(--ink);
  font-family:var(--sans); font-weight:600; font-size:.92rem; padding:.55rem .9rem; border-radius:10px; cursor:pointer; }
@media (max-width:720px){
  .nav__toggle{ display:inline-block; }
  .nav{ position:absolute; top:100%; right:var(--gutter); left:var(--gutter); flex-direction:column; align-items:stretch;
    gap:.4rem; background:var(--paper); border:1px solid var(--line); border-radius:14px; padding:.7rem; box-shadow:var(--shadow);
    transform-origin:top; transform:scaleY(.96); opacity:0; pointer-events:none; transition:opacity .2s, transform .2s; }
  .nav[data-open="true"]{ opacity:1; transform:none; pointer-events:auto; }
  .nav a:not(.btn){ padding:.7rem .8rem; border-radius:9px; }
  .nav a:not(.btn):hover{ background:var(--bg-2); }
  .nav .btn{ justify-content:center; margin-top:.2rem; }
}

/* ---------- hero ---------- */
.hero{ position:relative; padding:clamp(3.2rem,2.6rem + 6vw,7.5rem) 0 clamp(2.6rem,2rem + 4vw,5rem); overflow:hidden; }
.hero::before{ content:""; position:absolute; inset:-25% -10% auto -10%; height:92%; z-index:-1;
  background:radial-gradient(58% 70% at 74% 16%, oklch(0.93 0.045 152 / .8), transparent 70%),
             radial-gradient(50% 60% at 8% 2%, oklch(0.92 0.05 230 / .7), transparent 66%);
  filter:blur(6px); }
.hero__grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(2rem,4vw,4.5rem); align-items:center; }
@media (max-width:900px){ .hero__grid{ grid-template-columns:1fr; } }
.hero h1{ margin-bottom:1.25rem; }
.hero h1 em{ font-style:italic; color:var(--save-ink); font-weight:520; }
.hero .lead{ max-width:46ch; margin-bottom:1.9rem; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:.9rem; align-items:center; }
.hero__note{ margin-top:1.8rem; max-width:50ch; color:var(--muted); font-size:.95rem;
  padding-left:1rem; border-left:3px solid var(--line-2); }

/* hero figure: an audited bill receipt (the result), distinct from the centrepiece */
.hero__fig{ position:relative; justify-self:center; width:min(100%,420px); }
.receipt{ position:relative; background:var(--paper); border-radius:var(--radius); box-shadow:var(--shadow);
  border:1px solid var(--line); padding:1.4rem 1.4rem 1.5rem; }
.receipt__head{ display:flex; align-items:center; gap:.55rem; font-size:.86rem; font-weight:600; color:var(--save-ink);
  padding-bottom:.9rem; margin-bottom:.9rem; border-bottom:1px dashed var(--line-2); }
.receipt__head .pulse{ width:9px; height:9px; border-radius:50%; background:var(--save); flex:none;
  box-shadow:0 0 0 0 oklch(0.62 0.155 152 / .55); animation:pulse 2.6s var(--ease) infinite; }
@keyframes pulse{ 70%{ box-shadow:0 0 0 9px oklch(0.62 0.155 152 / 0); } 100%{ box-shadow:0 0 0 0 oklch(0.62 0.155 152 / 0); } }
.receipt__nums{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:.7rem; margin-bottom:1.1rem; }
.numcard{ background:var(--bg); border:1px solid var(--line); border-radius:var(--radius-sm); padding:.7rem .8rem; min-width:0; }
.numcard.is-after{ background:var(--save-soft); border-color:oklch(0.84 0.06 152); }
.numcard.is-save{ background:oklch(0.97 0.04 86); border-color:oklch(0.86 0.07 86); }
.numcard .lvl{ font-family:var(--num); font-weight:700; font-size:1.32rem; letter-spacing:-.02em; line-height:1;
  font-variant-numeric:tabular-nums; color:var(--ink); }
.numcard.is-after .lvl{ color:var(--save-ink); }
.numcard.is-save .lvl{ color:var(--gold-ink); }
.numcard .nm{ font-size:.72rem; color:var(--muted); margin-top:.35rem; line-height:1.25; }
.receipt__found{ background:var(--bg); border:1px solid var(--line); border-radius:var(--radius-sm); padding:.85rem .9rem; }
.receipt__found .cap{ display:flex; justify-content:space-between; font-size:.74rem; font-weight:700; letter-spacing:.04em;
  text-transform:uppercase; color:var(--muted); margin-bottom:.55rem; }
.receipt__found ul{ list-style:none; margin:0; padding:0; font-size:.86rem; line-height:1.5; color:var(--ink-soft); }
.receipt__found li{ display:flex; gap:.5rem; padding:.16rem 0; }
.receipt__found li svg{ width:15px; height:15px; flex:none; color:var(--save); margin-top:.18rem; }
.receipt__alert{ margin-top:1rem; display:inline-flex; gap:.45rem; align-items:center; background:var(--brand-deep);
  color:var(--on-dark); border-radius:999px; padding:.5rem 1rem; font-size:.86rem; font-weight:600; }
.receipt__alert svg{ width:16px; height:16px; flex:none; color:var(--gold); }

/* ---------- section rhythm ---------- */
.section{ padding:clamp(3.5rem,2.8rem + 4vw,6.5rem) 0; }
.section.panel{ background:var(--bg-2); }
.section__head{ max-width:42ch; margin-bottom:clamp(2rem,3vw,3rem); }
.section__head h2{ margin-bottom:.8rem; }
.section__head p{ color:var(--ink-soft); font-size:1.12rem; }

/* ---------- pains grid ---------- */
.pains{ display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(1.2rem,2.5vw,2rem); }
@media (max-width:760px){ .pains{ grid-template-columns:1fr; } }
.pain{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:1.6rem 1.7rem;
  box-shadow:var(--shadow-sm); min-width:0; }
.pain h3{ display:flex; gap:.7rem; align-items:flex-start; font-size:1.22rem; margin-bottom:.55rem; }
.pain h3 .x{ flex:none; width:26px; height:26px; border-radius:8px; background:var(--over-soft); color:var(--over);
  display:grid; place-items:center; font-family:var(--sans); font-weight:800; font-size:.95rem; margin-top:.1rem; }
.pain p{ color:var(--ink-soft); font-size:.99rem; }

/* ---------- feats grid ---------- */
.feats{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1.2rem,2.5vw,2rem); }
@media (max-width:880px){ .feats{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .feats{ grid-template-columns:1fr; } }
.feat{ display:flex; gap:1rem; align-items:flex-start; min-width:0; }
.feat > div{ min-width:0; }
.feat__ic{ width:46px; height:46px; flex:none; border-radius:12px; padding:11px; color:var(--brand);
  background:linear-gradient(150deg, oklch(0.94 0.04 230), oklch(0.93 0.045 152)); }
.feat h3{ font-size:1.18rem; margin:.15rem 0 .4rem; }
.feat p{ color:var(--ink-soft); font-size:.97rem; }

/* ---------- compare / yoy bars ---------- */
.compare{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,4vw,4rem); align-items:center; }
@media (max-width:840px){ .compare{ grid-template-columns:1fr; } }
.compare h2{ margin-bottom:1rem; }
.yoy{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:clamp(1.4rem,3vw,2rem); box-shadow:var(--shadow-sm); }
.yoy__row{ display:grid; grid-template-columns:5rem 1fr; gap:.9rem; align-items:center; margin-bottom:.9rem; }
.yoy__yr{ font-size:.86rem; font-weight:600; color:var(--muted); }
.yoy__track{ height:14px; background:var(--bg-2); border-radius:999px; overflow:hidden; }
.yoy__track i{ display:block; height:100%; border-radius:999px; background:linear-gradient(90deg, var(--brand), oklch(0.5 0.12 248)); }
.yoy__track.now i{ background:linear-gradient(90deg, var(--save), oklch(0.66 0.15 150)); }

/* ---------- steps ---------- */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1.5rem,3vw,3rem); counter-reset:s; }
@media (max-width:820px){ .steps{ grid-template-columns:1fr; gap:0; } }
.step{ counter-increment:s; position:relative; padding-top:1.6rem; border-top:2px solid var(--line-2); min-width:0; }
@media (max-width:820px){ .step{ padding:1.6rem 0; } .step + .step{ border-top:1px solid var(--line); } }
.step::before{ content:none; font-family:var(--serif); font-weight:560; font-size:1.5rem; color:var(--save-ink);
  position:absolute; top:1.3rem; right:0; }
.step h3{ font-size:1.25rem; margin:.2rem 0 .5rem; max-width:90%; }
.step p{ color:var(--ink-soft); font-size:.99rem; }

/* ---------- proof / stats ---------- */
.proof{ max-width:64ch; }
.proof h2{ margin-bottom:1rem; }
.proof > p{ color:var(--ink-soft); font-size:1.1rem; }
.stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1rem,2.5vw,2rem); margin-top:2.4rem; }
@media (max-width:680px){ .stats{ grid-template-columns:1fr; gap:1.4rem; } }
.stat{ min-width:0; }
.stat b{ font-family:var(--serif); font-weight:560; font-size:clamp(1.9rem,1.4rem + 1.8vw,2.7rem); line-height:1;
  display:block; color:var(--save-ink); font-variant-numeric:tabular-nums; }
.stat span{ display:block; margin-top:.5rem; color:var(--ink-soft); font-size:.95rem; line-height:1.45; }

/* ---------- faq ---------- */
.faq{ max-width:760px; }
.faq details{ border-bottom:1px solid var(--line); }
.faq summary{ list-style:none; cursor:pointer; padding:1.35rem 2.5rem 1.35rem 0; position:relative;
  font-family:var(--serif); font-weight:540; font-size:1.2rem; color:var(--ink); }
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{ content:""; position:absolute; right:.3rem; top:50%; width:12px; height:12px; margin-top:-7px;
  border-right:2px solid var(--save); border-bottom:2px solid var(--save); transform:rotate(45deg); transition:transform .3s var(--ease); }
.faq details[open] summary::after{ transform:rotate(225deg); }
.faq p{ color:var(--ink-soft); padding-bottom:1.35rem; max-width:64ch; }

/* ---------- centrepiece: scroll-driven bill audit ---------- */
.audit{ background:var(--night); color:var(--on-dark); position:relative; overflow:hidden; }
.audit::before{ content:""; position:absolute; inset:0; z-index:0; pointer-events:none;
  background:radial-gradient(42% 32% at 84% 6%, oklch(0.62 0.155 152 / .22), transparent 70%),
            radial-gradient(46% 36% at 8% 96%, oklch(0.45 0.115 248 / .34), transparent 70%); }
.audit .wrap{ position:relative; z-index:1; }
.audit__intro{ max-width:42ch; padding-bottom:clamp(1rem,2vw,2.5rem); }
.audit__intro .tag{ font-family:var(--sans); font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--save); font-size:.82rem; margin-bottom:1rem; display:inline-flex; gap:.5rem; align-items:center; }
.audit__intro h2{ color:var(--on-dark); margin-bottom:.9rem; }
.audit__intro p{ color:oklch(0.82 0.02 230); font-size:1.14rem; }

.audit__cols{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(2rem,5vw,5rem); align-items:start; }
@media (max-width:880px){ .audit__cols{ grid-template-columns:1fr; } }
.audit__stage{ position:sticky; top:0; height:100vh; display:flex; align-items:center; justify-content:center; }
@media (max-width:880px){ .audit__stage{ position:sticky; top:62px; height:auto; padding:1rem 0 1.5rem; } }

/* the bill sheet */
.bill{ width:min(420px,86vw); background:var(--paper); color:var(--ink); border-radius:16px;
  box-shadow:0 40px 80px -30px #000, 0 0 0 1px oklch(0.5 0.04 250 / .25); overflow:hidden; }
.bill__top{ display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:1rem 1.2rem; background:var(--brand-deep); color:var(--on-dark); }
.bill__top b{ font-family:var(--serif); font-weight:540; font-size:1.05rem; }
.bill__top span{ font-size:.74rem; opacity:.78; font-variant-numeric:tabular-nums; }
.bill__rows{ padding:.5rem 0; }
.bill__row{ display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:.7rem 1.2rem; font-size:.92rem; position:relative; transition:background-color .5s var(--ease); }
.bill__row .lbl{ display:flex; flex-direction:column; min-width:0; }
.bill__row .lbl b{ font-weight:600; color:var(--ink); overflow-wrap:break-word; }
.bill__row .lbl small{ font-size:.72rem; color:var(--muted); }
.bill__row .amt{ font-family:var(--num); font-weight:600; font-variant-numeric:tabular-nums; color:var(--ink-soft); white-space:nowrap; }
.bill__row + .bill__row{ border-top:1px solid var(--line); }
/* flagged state, set by JS scene */
.bill__row.is-flag{ background:var(--over-soft); }
.bill__row.is-flag .amt{ color:var(--over); text-decoration:line-through; text-decoration-color:var(--over); }
.bill__row.is-flag::after{ content:"OVERCHARGE"; position:absolute; right:1.2rem; top:-.55rem;
  font-family:var(--sans); font-size:.58rem; font-weight:800; letter-spacing:.06em; color:#fff;
  background:var(--over); padding:.12rem .4rem; border-radius:5px; opacity:0; transform:translateY(4px);
  transition:opacity .45s var(--ease), transform .45s var(--ease); }
.bill__row.is-flag.is-marked::after{ opacity:1; transform:none; }
.bill__row.is-cut.is-marked .amt{ color:var(--save-ink); text-decoration:none; }
.bill__row.is-cut.is-marked .lbl b{ color:var(--save-ink); }
.bill__total{ display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:1rem 1.2rem; border-top:2px solid var(--line-2); background:var(--bg); }
.bill__total .lbl{ font-weight:700; font-size:.92rem; }
.bill__total .amt{ font-family:var(--num); font-weight:800; font-size:1.45rem; font-variant-numeric:tabular-nums;
  letter-spacing:-.02em; transition:color .6s var(--ease); }
.bill__total.is-saved .amt{ color:var(--save-ink); }
.bill__saving{ display:flex; align-items:center; justify-content:space-between; gap:.6rem; padding:.85rem 1.2rem;
  background:linear-gradient(100deg, var(--save), oklch(0.56 0.14 156)); color:oklch(0.99 0.01 150);
  font-weight:700; font-size:.92rem; opacity:0; max-height:0; overflow:hidden;
  transition:opacity .5s var(--ease), max-height .5s var(--ease); }
.bill__saving.is-on{ opacity:1; max-height:60px; }
.bill__saving .big{ font-family:var(--num); font-weight:800; font-size:1.2rem; font-variant-numeric:tabular-nums; }

/* the scrolling beats next to the sticky bill */
.audit__beats{ padding:6vh 0 8vh; }
@media (max-width:880px){ .audit__beats{ padding:2vh 0 0; } }
.abeat{ min-height:62vh; display:flex; flex-direction:column; justify-content:center; max-width:34ch; }
@media (max-width:880px){ .abeat{ min-height:52vh; } }
.abeat__step{ font-family:var(--sans); font-weight:700; font-size:.8rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--save); margin-bottom:.7rem; }
.abeat h3{ color:var(--on-dark); font-size:clamp(1.5rem,1.2rem + 1.6vw,2.3rem); margin-bottom:.7rem; }
.abeat p{ color:oklch(0.8 0.02 230); font-size:1.06rem; }
.abeat.is-win .abeat__step{ color:var(--gold); }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1.2fr .8fr; gap:clamp(2rem,4vw,4rem); align-items:start; }
@media (max-width:840px){ .contact-grid{ grid-template-columns:1fr; } }
.form{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:clamp(1.4rem,3vw,2rem); box-shadow:var(--shadow-sm); margin-top:1.2rem; }
.form__honey{ position:absolute; left:-9999px; width:1px; height:1px; opacity:0; }
.field{ margin-bottom:1.1rem; }
.field label{ display:block; font-weight:600; font-size:.92rem; margin-bottom:.4rem; color:var(--ink); }
.field .opt{ font-weight:400; color:var(--muted); }
.field input,.field textarea{ width:100%; font-family:var(--sans); font-size:1rem; color:var(--ink);
  background:var(--bg); border:1.5px solid var(--line-2); border-radius:10px; padding:.8rem .9rem; transition:border-color .2s, box-shadow .2s; }
.field textarea{ min-height:130px; resize:vertical; line-height:1.55; }
.field input:focus,.field textarea:focus{ outline:none; border-color:var(--save); box-shadow:0 0 0 3px oklch(0.62 0.155 152 / .18); }
.form__note{ color:var(--muted); font-size:.86rem; margin-top:1rem; line-height:1.5; }
/* progressive form-feedback (enhancement only; native validation + POST still work with JS off) */
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{ border-color:var(--over); }
.field input[aria-invalid="true"]:focus,.field textarea[aria-invalid="true"]:focus{ box-shadow:0 0 0 3px oklch(0.58 0.185 24 / .18); }
.field__err{ display:block; min-height:0; color:var(--over); font-size:.84rem; font-weight:600; margin-top:.4rem; }
.field__err:empty{ margin-top:0; }
.btn[aria-busy="true"]{ opacity:.85; cursor:progress; }
.aside{ background:var(--bg-2); border:1px solid var(--line); border-radius:var(--radius); padding:clamp(1.4rem,3vw,1.9rem); }
.aside h2{ font-size:1.35rem; margin-bottom:1rem; }
.aside dl{ margin:0; }
.aside dt{ font-weight:700; font-size:.98rem; color:var(--ink); margin-top:1rem; }
.aside dt:first-of-type{ margin-top:0; }
.aside dd{ margin:.2rem 0 0; color:var(--ink-soft); font-size:.94rem; }

/* ---------- cta band ---------- */
.cta{ text-align:center; position:relative; }
.cta .wrap{ background:linear-gradient(135deg, var(--brand), var(--brand-deep)); color:var(--on-dark);
  border-radius:var(--radius-lg); padding:clamp(2.6rem,2rem + 4vw,4.5rem); max-width:var(--maxw); }
.cta h2{ color:var(--on-dark); max-width:20ch; margin:0 auto 1rem; }
.cta p{ color:oklch(0.88 0.02 230); max-width:48ch; margin:0 auto 1.8rem; font-size:1.12rem; }

/* ---------- guide article tweaks ---------- */
.section .measure h2{ margin-bottom:1rem; }
.section .measure > p + p{ margin-top:1rem; }
table{ overflow-wrap:break-word; }

/* ---------- footer ---------- */
.foot{ background:var(--brand-deep); color:oklch(0.84 0.02 230); padding:clamp(3rem,2rem + 3vw,4.5rem) 0 2.4rem; }
.foot a{ color:oklch(0.9 0.02 230); }
.foot__top{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:2.5rem; }
.foot__promise{ font-family:var(--serif); font-weight:540; font-size:1.5rem; color:var(--on-dark); max-width:14ch; }
.foot__cols{ display:flex; flex-wrap:wrap; gap:2.2rem 3rem; }
.foot__col h4{ font-family:var(--sans); font-size:.76rem; text-transform:uppercase; letter-spacing:.08em; color:var(--save); margin:0 0 .9rem; }
.foot__col ul{ list-style:none; margin:0; padding:0; display:grid; gap:.5rem; }
.foot__col li,.foot__col a{ font-size:.94rem; color:oklch(0.82 0.02 230); }
.foot__col a{ text-decoration:none; }
.foot__col a:hover{ color:#fff; }
.foot__bottom{ border-top:1px solid oklch(1 0 0 / .12); margin-top:2.6rem; padding-top:1.5rem;
  display:flex; flex-wrap:wrap; gap:.6rem 1.6rem; justify-content:space-between; color:oklch(0.7 0.02 230); font-size:.85rem; }
.foot__bottom a{ color:oklch(0.82 0.02 230); }

/* ---------- reveal motion (visible by default; JS hides only below-fold) ---------- */
.reveal{ transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-pending{ opacity:0; transform:translateY(22px); }
@media (prefers-reduced-motion: reduce){
  .reveal.is-pending{ opacity:1; transform:none; }
  .bill__row,.bill__total,.bill__saving,.bill__row.is-flag::after{ transition:none; }
}