/* ============================================================
   Ironclad Roofing Co.
   Concept: "A roof isn't a shingle. It's a system."
   The hero IS the proof — a roofing-assembly cross-section that
   draws itself in, layer by layer (deck → shield → underlayment →
   starter → shingles → ridge → copper flashing). Rugged slate ground,
   a single rationed amber accent (the copper flashing + the CTA).
   System-font stack, no CDN, no FOUC.
   All body text verified >= 4.5:1 on its ground (notes inline).
   ============================================================ */

:root{
  /* cool storm-slate near-black (never pure #000) */
  --bg:      #12151a;   /* base ground              */
  --bg-2:    #171b21;   /* lifted panels            (~1:1.15) */
  --bg-3:    #1e242c;   /* inputs / insets          */
  --bg-4:    #0d1013;   /* deepest full-bleed bands */
  --panel:   #191e25;

  --ink-hi:  #eef2f6;   /* headings   ~15:1 on bg  */
  --ink:     #cdd5de;   /* body       ~11:1 on bg  */
  --ink-mid: #9aa6b3;   /* secondary  ~6.6:1 on bg */
  --ink-low: #808d9b;   /* tertiary   ~5:1  on bg  (large/labels) */

  /* single accent — storm amber / copper. Tiers so text always clears AA. */
  --amber:      #f5a43c;   /* brand — flashing, large text, CTA fill (~9.5:1 on bg) */
  --amber-hi:   #f9bd6a;   /* small accent text on dark (~12:1) */
  --amber-num:  #f0982a;   /* numerals / small labels on dark (~8:1) */
  --amber-deep: #b9702a;   /* engraving / hairlines ONLY (not text) */
  --amber-ink:  #12151a;   /* text on amber fill */

  /* semantic status (separate from the accent) */
  --warn:    #e5574e;      /* live storm-alert dot only */

  --line:    rgba(245,164,60,.16);   /* drafted amber hairline */
  --line-2:  rgba(238,242,246,.09);  /* neutral hairline */
  --line-3:  rgba(238,242,246,.055); /* faint hairline */

  --serif: 'Iowan Old Style','Palatino Linotype',Palatino,'Book Antiqua','Hoefler Text',Georgia,serif;
  --sans:  system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --mono:  ui-monospace,'SF Mono','SFMono-Regular',Menlo,'Cascadia Mono','Roboto Mono',Consolas,monospace;

  --ease:  cubic-bezier(.22,1,.36,1);
  --pad:   clamp(20px,5vw,80px);
  --maxw:  1240px;
}

*{box-sizing:border-box; margin:0; padding:0}
[hidden]{display:none !important}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:clamp(1rem,.965rem + .18vw,1.075rem);
  line-height:1.62;
  letter-spacing:-.006em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip;
}
::selection{background:var(--amber); color:var(--amber-ink)}

a{color:inherit; text-decoration:none}
img,canvas,svg{display:block; max-width:100%}
h1,h2,h3,h4{text-wrap:balance}
p{text-wrap:pretty}

.skip{
  position:fixed; left:12px; top:-64px; z-index:200;
  background:var(--amber); color:var(--amber-ink);
  padding:10px 16px; border-radius:3px; font-weight:700;
  transition:top .2s var(--ease);
}
.skip:focus{top:12px}
:focus-visible{outline:2.5px solid var(--amber-hi); outline-offset:3px; border-radius:3px}

.wrap{width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--pad)}

/* ---------- shared type atoms ---------- */
.kicker{
  font-family:var(--mono);
  font-size:.7rem; font-weight:600;
  letter-spacing:.26em; text-transform:uppercase;
  color:var(--amber-hi); padding-left:.26em;
}
.kicker--warn{color:var(--ink-mid)}
.sec-title{
  font-family:var(--sans);
  font-weight:800;
  font-size:clamp(1.95rem,1.1rem + 3.4vw,3.35rem);
  line-height:1.03; letter-spacing:-.025em;
  color:var(--ink-hi); margin-top:.6rem; max-width:19ch;
}
.sec-title--sm{font-size:clamp(1.7rem,1.1rem + 2.4vw,2.6rem)}
.sec-title em{font-style:normal; color:var(--amber)}
.sec-head{margin-bottom:clamp(2.4rem,5vw,4rem)}
.sec-head--split{display:grid; gap:clamp(1rem,3vw,3rem); grid-template-columns:1fr; align-items:end}
.sec-head--center{text-align:center; max-width:none}
.sec-head--center .sec-title,.sec-head--center .kicker{margin-inline:auto}
.sec-head--center .sec-title{max-width:24ch}
.sec-head__aside{color:var(--ink-mid); max-width:46ch}
@media (min-width:880px){
  .sec-head--split{grid-template-columns:1.15fr .85fr}
}

/* ---------- reveal ---------- */
[data-rv]{opacity:0; transform:translateY(24px); transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-rv].in{opacity:1; transform:none}
@media (prefers-reduced-motion:reduce){
  [data-rv]{opacity:1 !important; transform:none !important; transition:none !important}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  font-family:var(--sans); font-weight:700; font-size:.95rem; letter-spacing:.005em;
  padding:.92em 1.55em; border-radius:4px; border:1.5px solid transparent;
  cursor:pointer; white-space:nowrap;
  transition:transform .45s var(--ease),background-color .45s var(--ease),
             color .45s var(--ease),border-color .45s var(--ease),box-shadow .45s var(--ease);
}
.btn--amber{background:var(--amber); color:var(--amber-ink); box-shadow:0 8px 26px -12px rgba(245,164,60,.7)}
.btn--amber:hover{background:var(--amber-hi); transform:translateY(-2px); box-shadow:0 14px 34px -12px rgba(245,164,60,.75)}
.btn--ghost{border-color:var(--line-2); color:var(--ink-hi); background:transparent}
.btn--ghost:hover{border-color:var(--amber); color:var(--amber-hi); transform:translateY(-2px)}
.btn--block{width:100%}
.btn--nav{padding:.62em 1.1em; font-size:.85rem}
.btn__short{display:none}

/* ============ NAV ============ */
.nav{position:fixed; inset:0 0 auto 0; z-index:120; transition:background-color .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease); border-bottom:1px solid transparent}
.nav.is-stuck{background:rgba(15,18,23,.82); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); border-bottom-color:var(--line-2); box-shadow:0 8px 30px -18px rgba(0,0,0,.8)}
.nav__in{display:flex; align-items:center; justify-content:space-between; gap:1rem; padding-block:.7rem}
.brand{display:inline-flex; align-items:center; gap:.6rem; color:var(--ink)}
.brand__mark{display:grid; place-items:center; width:38px; height:38px; border:1px solid var(--line-2); border-radius:7px; background:var(--bg-2)}
.brand__word{display:flex; flex-direction:column; line-height:1}
.brand__name{font-weight:800; font-size:1.02rem; letter-spacing:-.02em; color:var(--ink-hi)}
.brand__sub{font-family:var(--mono); font-size:.6rem; letter-spacing:.24em; text-transform:uppercase; color:var(--ink-low); margin-top:.24em}
.nav__links{display:none; gap:1.7rem}
.nav__links a{font-size:.88rem; color:var(--ink-mid); transition:color .3s var(--ease)}
.nav__links a:hover{color:var(--amber-hi)}
@media (min-width:940px){.nav__links{display:flex}}
@media (max-width:400px){.btn__full{display:none} .btn__short{display:inline}}

/* ============ HERO ============ */
.hero{position:relative; padding-top:clamp(6.5rem,14vh,9rem); padding-bottom:clamp(2rem,5vh,3.4rem); overflow:hidden}
.hero__sky{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(120% 80% at 78% -10%, rgba(245,164,60,.10), transparent 55%),
    radial-gradient(90% 70% at 12% 8%, rgba(90,120,150,.10), transparent 60%),
    linear-gradient(180deg,#0e1116 0%,var(--bg) 58%);
}
.hero__sky::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg,transparent 62%,var(--bg) 100%);
}
.hero__in{position:relative; z-index:1; display:grid; gap:clamp(2.4rem,5vw,4rem); grid-template-columns:1fr; align-items:center}
@media (min-width:980px){.hero__in{grid-template-columns:1.02fr 1.05fr}}

.hero__title{
  font-family:var(--sans); font-weight:800;
  font-size:clamp(2.7rem,1.3rem + 6.4vw,5.1rem);
  line-height:.98; letter-spacing:-.035em; color:var(--ink-hi);
  margin:.7rem 0 1.15rem;
}
.hero__title em{font-style:normal; color:var(--amber)}
.line{display:block; overflow:hidden}
.line__i{display:block; transform:translateY(110%); transition:transform 1.15s var(--ease)}
.hero.is-in .line:nth-child(1) .line__i{transition-delay:.05s}
.hero.is-in .line:nth-child(2) .line__i{transition-delay:.17s}
.hero.is-in .line:nth-child(3) .line__i{transition-delay:.29s}
.hero.is-in .line__i{transform:translateY(0)}
@media (prefers-reduced-motion:reduce){.line__i{transform:none !important}}

.hero__lede{font-size:clamp(1.05rem,1rem + .5vw,1.24rem); color:var(--ink); max-width:44ch}
.alert{
  display:inline-flex; align-items:center; gap:.6rem; margin-top:1.4rem;
  padding:.55rem .95rem; border:1px solid var(--line-2); border-radius:100px;
  background:var(--bg-2); font-size:.84rem; color:var(--ink);
}
.alert strong{color:var(--ink-hi); font-weight:700}
.alert__dot{width:8px; height:8px; border-radius:50%; background:var(--warn); flex:none; box-shadow:0 0 0 0 rgba(229,87,78,.55); animation:beat 2.4s var(--ease) infinite}
@keyframes beat{0%{box-shadow:0 0 0 0 rgba(229,87,78,.5)}70%{box-shadow:0 0 0 8px rgba(229,87,78,0)}100%{box-shadow:0 0 0 0 rgba(229,87,78,0)}}
@media (prefers-reduced-motion:reduce){.alert__dot{animation:none}}

.hero__cta{display:flex; flex-wrap:wrap; gap:.8rem; margin-top:1.7rem}
.hero__fine{margin-top:1.1rem; font-size:.82rem; color:var(--ink-low); max-width:46ch}

/* hero instrument */
.hero__instrument{position:relative}
.inst__frame{
  position:relative; border:1px solid var(--line-2); border-radius:12px;
  background:linear-gradient(180deg,var(--bg-2),#12161c);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.03);
  overflow:hidden;
}
.inst__bar{
  display:flex; justify-content:space-between; align-items:center;
  padding:.62rem .95rem; border-bottom:1px solid var(--line-3);
  font-family:var(--mono); font-size:.62rem; letter-spacing:.18em; color:var(--ink-low);
  background:rgba(255,255,255,.015);
}
.inst__canvas{width:100%; height:auto; aspect-ratio:4 / 3.05; display:block}
.inst__legend{
  position:absolute; left:.9rem; top:2.5rem; display:flex; flex-direction:column; gap:.24rem;
  font-family:var(--mono); font-size:.6rem; letter-spacing:.03em; color:var(--ink-mid);
  pointer-events:none;
}
.inst__legend b{color:var(--ink-hi); font-weight:600; font-variant-numeric:tabular-nums}
.inst__legend span{display:flex; align-items:center; gap:.42rem; opacity:0; transition:opacity .5s var(--ease)}
.inst__legend span.on{opacity:1}
.inst__legend i{width:14px; height:0; border-top:2px solid currentColor; flex:none}
.inst__cap{margin-top:.85rem; font-family:var(--mono); font-size:.66rem; letter-spacing:.03em; color:var(--ink-low); text-align:right}

/* hero stats */
.hero__stats{
  position:relative; z-index:1; list-style:none; margin-top:clamp(2.6rem,6vw,4rem);
  display:grid; grid-template-columns:repeat(2,1fr); gap:1px;
  background:var(--line-3); border:1px solid var(--line-3); border-radius:10px; overflow:hidden;
}
@media (min-width:720px){.hero__stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--bg); padding:1.15rem clamp(1rem,3vw,1.6rem); display:flex; flex-direction:column; gap:.2rem}
.stat__n{font-family:var(--mono); font-weight:600; font-size:clamp(1.6rem,1.1rem + 1.6vw,2.15rem); color:var(--amber); font-variant-numeric:tabular-nums; letter-spacing:-.02em}
.stat__n--txt{color:var(--amber)}
.stat__l{font-size:.78rem; color:var(--ink-mid); letter-spacing:.01em}

/* ============ STORM RESPONSE ============ */
.storm{position:relative; background:var(--bg-4); border-block:1px solid var(--line-3); overflow:hidden; padding-block:clamp(3.4rem,8vh,6rem)}
.storm__radar{position:absolute; inset:0; width:100%; height:100%; z-index:0; opacity:.5}
.storm__in{position:relative; z-index:1; display:grid; gap:clamp(2rem,5vw,4rem); grid-template-columns:1fr; align-items:start}
@media (min-width:900px){.storm__in{grid-template-columns:1.05fr 1fr}}
.storm__h{font-family:var(--sans); font-weight:800; font-size:clamp(1.9rem,1.2rem + 3vw,3rem); line-height:1.02; letter-spacing:-.028em; color:var(--ink-hi); margin:.55rem 0 1rem; max-width:16ch}
.storm__h em{font-style:normal; color:var(--amber)}
.storm__p{color:var(--ink); max-width:48ch}
.storm__call{display:inline-flex; flex-direction:column; margin-top:1.6rem; padding:.85rem 1.3rem; border:1px solid var(--line); border-radius:8px; background:rgba(245,164,60,.05); transition:border-color .3s var(--ease),background-color .3s var(--ease)}
.storm__call:hover{border-color:var(--amber); background:rgba(245,164,60,.09)}
.storm__call-k{font-family:var(--mono); font-size:.62rem; letter-spacing:.22em; text-transform:uppercase; color:var(--amber-hi)}
.storm__call-n{font-weight:800; font-size:1.5rem; letter-spacing:-.02em; color:var(--ink-hi); font-variant-numeric:tabular-nums; margin-top:.15rem}
.storm__grid{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line-3); border:1px solid var(--line-3); border-radius:10px; overflow:hidden}
.scell{background:var(--bg-2); padding:1.15rem 1.15rem 1.05rem}
.scell dt{font-family:var(--mono); font-size:.62rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-low)}
.scell dd{display:flex; align-items:baseline; gap:.3rem; margin-top:.4rem; font-weight:800; font-size:clamp(1.7rem,1.2rem + 1.6vw,2.3rem); color:var(--ink-hi); font-variant-numeric:tabular-nums; letter-spacing:-.02em}
.scell__u{font-size:.9rem; font-weight:600; color:var(--ink-mid)}
.scell__sub{margin-top:.35rem; font-size:.74rem; color:var(--ink-mid)}
.scell__live{font-size:1.2rem; color:var(--amber); align-items:center; flex-wrap:wrap}
.scell__pulse{display:inline-block; width:9px; height:9px; border-radius:50%; background:var(--amber); margin-right:.15rem; box-shadow:0 0 0 0 rgba(245,164,60,.6); animation:beat2 2.8s var(--ease) infinite}
@keyframes beat2{0%{box-shadow:0 0 0 0 rgba(245,164,60,.55)}70%{box-shadow:0 0 0 9px rgba(245,164,60,0)}100%{box-shadow:0 0 0 0 rgba(245,164,60,0)}}
@media (prefers-reduced-motion:reduce){.scell__pulse{animation:none}}

/* ============ THE SYSTEM — ledger ============ */
.system{padding-block:clamp(4rem,9vh,7rem)}
.ledger{list-style:none; border-top:1px solid var(--line-2)}
.lrow{
  display:grid; grid-template-columns:auto 1fr; gap:.3rem 1.1rem; align-items:start;
  padding:1.5rem 0; border-bottom:1px solid var(--line-3);
  transition:background-color .4s var(--ease);
}
.lrow:hover{background:linear-gradient(90deg,rgba(245,164,60,.04),transparent 60%)}
.lrow__no{font-family:var(--mono); font-size:.95rem; font-weight:600; color:var(--amber-num); letter-spacing:.02em; padding-top:.2rem; font-variant-numeric:tabular-nums}
.lrow__t{font-size:clamp(1.12rem,1rem + .6vw,1.4rem); font-weight:700; color:var(--ink-hi); letter-spacing:-.015em}
.lrow__d{margin-top:.4rem; color:var(--ink-mid); max-width:64ch; font-size:.97rem}
.lrow__spec{grid-column:2; justify-self:start; margin-top:.7rem; font-family:var(--mono); font-size:.62rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-low); border:1px solid var(--line-3); border-radius:100px; padding:.28rem .7rem}
@media (min-width:820px){
  .lrow{grid-template-columns:auto 1fr auto; align-items:center; gap:0 1.6rem}
  .lrow__no{font-size:1.1rem; padding-top:0}
  .lrow__spec{grid-column:auto; margin-top:0; justify-self:end}
}

/* ============ MATERIALS & WARRANTY ============ */
.mats{padding-block:clamp(4rem,9vh,7rem); background:var(--bg-4); border-block:1px solid var(--line-3)}
.mats__in{display:grid; gap:clamp(2rem,4vw,3.4rem); grid-template-columns:1fr}
@media (min-width:940px){.mats__in{grid-template-columns:.82fr 1.18fr; align-items:start}}
.warranty{position:sticky; top:5rem; background:var(--bg-2); border:1px solid var(--line-2); border-radius:14px; padding:clamp(1.6rem,3vw,2.2rem)}
@media (max-width:939px){.warranty{position:static}}
.warranty__h{font-size:1.5rem; font-weight:800; color:var(--ink-hi); letter-spacing:-.02em; margin:.5rem 0 1.2rem}
.gauge{position:relative; display:grid; place-items:end center; margin:.5rem 0 1.4rem}
.gauge__svg{width:100%; max-width:280px; overflow:visible}
.gauge__track{stroke:var(--bg-3); stroke-width:12; stroke-linecap:round}
.gauge__fill{stroke:var(--amber); stroke-width:12; stroke-linecap:round; filter:drop-shadow(0 0 10px rgba(245,164,60,.35))}
.gauge__read{position:absolute; bottom:.2rem; left:0; right:0; text-align:center; display:flex; flex-direction:column; align-items:center}
.gauge__n{font-family:var(--mono); font-weight:700; font-size:2.9rem; color:var(--ink-hi); line-height:1; font-variant-numeric:tabular-nums; letter-spacing:-.03em}
.gauge__u{font-family:var(--mono); font-size:.68rem; letter-spacing:.24em; text-transform:uppercase; color:var(--amber-hi); margin-top:.35rem}
.warranty__list{list-style:none; display:flex; flex-direction:column; gap:.75rem}
.warranty__list li,.finance__pts li,.book__pts li{display:flex; gap:.65rem; font-size:.92rem; color:var(--ink); align-items:flex-start}
.chk{flex:none; width:18px; height:18px; margin-top:.15rem; border-radius:50%; background:rgba(245,164,60,.14); position:relative}
.chk::after{content:""; position:absolute; left:5px; top:4px; width:5px; height:9px; border:solid var(--amber); border-width:0 2px 2px 0; transform:rotate(42deg)}

.tiers{display:flex; flex-direction:column; gap:1px; background:var(--line-3); border:1px solid var(--line-3); border-radius:14px; overflow:hidden}
.tiers>.sec-head{background:transparent; margin:0; padding:clamp(1.4rem,3vw,2rem) clamp(1.4rem,3vw,2rem) .4rem}
.tier{background:var(--bg-2); padding:clamp(1.4rem,3vw,1.9rem); display:grid; gap:.6rem; position:relative}
.tier--feat{background:linear-gradient(180deg,rgba(245,164,60,.06),var(--bg-2))}
.tier--feat::before{content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--amber)}
.tier__head{display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap}
.tier__t{font-size:1.28rem; font-weight:800; color:var(--ink-hi); letter-spacing:-.02em}
.tier__badge{font-family:var(--mono); font-size:.6rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-mid); border:1px solid var(--line-2); border-radius:100px; padding:.24rem .6rem}
.tier__badge--hot{color:var(--amber-ink); background:var(--amber); border-color:var(--amber)}
.tier__d{color:var(--ink-mid); font-size:.94rem; max-width:56ch}
.tier__spec{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-3); border:1px solid var(--line-3); border-radius:8px; overflow:hidden; margin-top:.3rem}
.tier__spec>div{background:var(--bg-3); padding:.7rem .85rem}
.tier__spec dt{font-family:var(--mono); font-size:.58rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-low)}
.tier__spec dd{font-weight:700; color:var(--ink-hi); font-size:1.02rem; margin-top:.2rem; font-variant-numeric:tabular-nums}

/* ============ BEFORE / AFTER ============ */
.proof{padding-block:clamp(4rem,9vh,7rem)}
.ba{max-width:1080px; margin-inline:auto; padding-inline:var(--pad)}
.ba__stage{position:relative; border:1px solid var(--line-2); border-radius:14px; overflow:hidden; box-shadow:0 40px 80px -46px rgba(0,0,0,.85); touch-action:pan-y}
.ba__canvas{width:100%; height:auto; aspect-ratio:16 / 9; display:block}
.ba__divider{position:absolute; top:0; bottom:0; left:50%; width:2px; background:var(--amber); transform:translateX(-1px); pointer-events:none; box-shadow:0 0 14px rgba(245,164,60,.5)}
.ba__grip{position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:42px; height:42px; border-radius:50%; background:var(--amber); display:grid; place-items:center; box-shadow:0 6px 18px -6px rgba(0,0,0,.7)}
.ba__grip::before,.ba__grip::after{content:""; position:absolute; width:0; height:0; border-block:5px solid transparent}
.ba__grip::before{border-right:7px solid var(--amber-ink); left:9px}
.ba__grip::after{border-left:7px solid var(--amber-ink); right:9px}
.ba__tag{position:absolute; top:.85rem; font-family:var(--mono); font-size:.62rem; letter-spacing:.14em; text-transform:uppercase; padding:.32rem .7rem; border-radius:100px; background:rgba(13,16,19,.72); backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px); color:var(--ink-hi); border:1px solid var(--line-2)}
.ba__tag--l{left:.85rem}
.ba__tag--r{right:.85rem; color:var(--amber-hi)}
.ba__slider{display:block; margin-top:1.1rem; text-align:center}
.ba__slider-lbl{display:block; font-family:var(--mono); font-size:.64rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-low); margin-bottom:.5rem}
.ba__slider input[type=range]{width:min(420px,100%)}

/* range inputs (shared look) */
input[type=range]{-webkit-appearance:none; appearance:none; height:6px; border-radius:100px; background:var(--bg-3); cursor:pointer; outline-offset:5px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none; appearance:none; width:22px; height:22px; border-radius:50%; background:var(--amber); border:3px solid var(--bg); box-shadow:0 3px 10px -3px rgba(0,0,0,.7); cursor:pointer}
input[type=range]::-moz-range-thumb{width:20px; height:20px; border-radius:50%; background:var(--amber); border:3px solid var(--bg); cursor:pointer}
input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px rgba(249,189,106,.5)}

/* ============ FINANCING ============ */
.finance{padding-block:clamp(4rem,9vh,7rem); background:var(--bg-4); border-block:1px solid var(--line-3)}
.finance__in{display:grid; gap:clamp(2rem,4vw,3.6rem); grid-template-columns:1fr; align-items:center}
@media (min-width:900px){.finance__in{grid-template-columns:1.05fr .95fr}}
.finance__p{color:var(--ink); margin-top:1rem; max-width:48ch}
.finance__pts{list-style:none; display:flex; flex-direction:column; gap:.7rem; margin-top:1.5rem}
.calc{background:var(--bg-2); border:1px solid var(--line-2); border-radius:16px; padding:clamp(1.5rem,3.5vw,2.3rem); box-shadow:0 40px 80px -50px rgba(0,0,0,.85)}
.calc__h{font-size:1.2rem; font-weight:800; color:var(--ink-hi); letter-spacing:-.02em; margin-bottom:1.4rem}
.calc__field{margin-bottom:1.5rem}
.calc__row{display:flex; align-items:baseline; justify-content:space-between; margin-bottom:.7rem}
.calc__row label,.calc__lbl{font-size:.86rem; color:var(--ink-mid)}
.calc__amt{font-family:var(--mono); font-weight:700; font-size:1.3rem; color:var(--ink-hi); font-variant-numeric:tabular-nums}
.calc__scale{display:flex; justify-content:space-between; margin-top:.5rem; font-family:var(--mono); font-size:.62rem; color:var(--ink-low)}
.calc__lbl{display:block; margin-bottom:.6rem}
.calc__terms{display:grid; grid-template-columns:repeat(3,1fr); gap:.5rem}
.term{font-family:var(--sans); font-weight:600; font-size:.9rem; color:var(--ink-mid); background:var(--bg-3); border:1.5px solid var(--line-3); border-radius:8px; padding:.7rem .5rem; cursor:pointer; transition:all .3s var(--ease)}
.term:hover{border-color:var(--line-2); color:var(--ink-hi)}
.term.is-on{background:rgba(245,164,60,.12); border-color:var(--amber); color:var(--amber-hi)}
.calc__out{margin:1.6rem 0 1.5rem; padding-top:1.5rem; border-top:1px solid var(--line-3)}
.calc__mo{display:flex; align-items:baseline; gap:.5rem}
.calc__mo-n{font-family:var(--mono); font-weight:700; font-size:clamp(2.4rem,1.6rem + 2.6vw,3.4rem); color:var(--amber); line-height:1; font-variant-numeric:tabular-nums; letter-spacing:-.03em}
.calc__mo-u{font-size:1rem; color:var(--ink-mid); font-weight:600}
.calc__fine{margin-top:.8rem; font-size:.76rem; color:var(--ink-low)}

/* ============ REVIEW ============ */
.review{padding-block:clamp(4.5rem,10vh,8rem)}
.review__in{max-width:760px; margin-inline:auto; text-align:center; display:flex; flex-direction:column; align-items:center}
.review__stars{color:var(--amber); font-size:1.35rem; letter-spacing:.2em}
.review__q{font-family:var(--serif); font-size:clamp(1.4rem,1.05rem + 1.8vw,2.15rem); line-height:1.35; color:var(--ink-hi); letter-spacing:-.01em; margin:1.4rem 0; text-wrap:balance}
.review__q em{font-style:italic; color:var(--amber)}
.review__by{display:flex; flex-direction:column; gap:.25rem}
.review__name{font-weight:800; color:var(--ink-hi); font-size:1.05rem}
.review__meta{font-size:.82rem; color:var(--ink-mid)}
.review__certs{list-style:none; display:flex; flex-wrap:wrap; justify-content:center; gap:.6rem; margin-top:2.4rem}
.review__certs li{font-family:var(--mono); font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-mid); border:1px solid var(--line-3); border-radius:100px; padding:.42rem .85rem}

/* ============ BOOK / FORM ============ */
.book{padding-block:clamp(4rem,9vh,7rem); background:linear-gradient(180deg,var(--bg),#0e1116)}
.book__in{display:grid; gap:clamp(2.4rem,5vw,4rem); grid-template-columns:1fr; align-items:start}
@media (min-width:920px){.book__in{grid-template-columns:1fr 1fr}}
.book__p{color:var(--ink); margin-top:1rem; max-width:46ch}
.book__pts{list-style:none; display:flex; flex-direction:column; gap:.7rem; margin-top:1.6rem}
.cform{background:var(--bg-2); border:1px solid var(--line-2); border-radius:16px; padding:clamp(1.5rem,3.5vw,2.3rem); box-shadow:0 40px 90px -50px rgba(0,0,0,.9)}
.cform__h{font-size:1.25rem; font-weight:800; color:var(--ink-hi); letter-spacing:-.02em; margin-bottom:1.4rem}
.field{margin-bottom:1.1rem}
.field-row{display:grid; grid-template-columns:1fr; gap:0 1rem}
@media (min-width:520px){.field-row{grid-template-columns:1fr 1fr}}
.field label{display:block; font-size:.8rem; font-weight:600; color:var(--ink-mid); margin-bottom:.42rem; letter-spacing:.01em}
.field input,.field select{
  width:100%; font-family:var(--sans); font-size:.98rem; color:var(--ink-hi);
  background:var(--bg-3); border:1.5px solid var(--line-3); border-radius:9px;
  padding:.8rem .9rem; transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.field input::placeholder{color:var(--ink-low)}
.field input:focus,.field select:focus{outline:none; border-color:var(--amber); box-shadow:0 0 0 3px rgba(245,164,60,.16)}
.field input[aria-invalid=true]{border-color:var(--warn); box-shadow:0 0 0 3px rgba(229,87,78,.16)}
.field select{appearance:none; -webkit-appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%239aa6b3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right .9rem center; background-size:12px; padding-right:2.2rem}
.err{margin-top:.42rem; font-size:.76rem; color:#f19a94}
.cform__fine{margin-top:1rem; font-size:.78rem; color:var(--ink-low)}
.cform__ok{text-align:center; padding:1.4rem .5rem .6rem}
.cform__ok-mark{display:inline-block; margin-bottom:.8rem}
.cform__ok-h{font-size:1.4rem; font-weight:800; color:var(--ink-hi); letter-spacing:-.02em; margin-bottom:.5rem}
.cform__ok-p{color:var(--ink-mid); font-size:.94rem; max-width:40ch; margin-inline:auto}
.cform__ok-p a{color:var(--amber-hi); font-weight:700; white-space:nowrap}

/* ============ FOOTER ============ */
.foot{background:var(--bg-4); border-top:1px solid var(--line-3); padding-top:clamp(3rem,6vh,4.5rem)}
.foot__in{display:grid; gap:2.4rem; grid-template-columns:1fr; padding-bottom:2.4rem; border-bottom:1px solid var(--line-3)}
@media (min-width:820px){.foot__in{grid-template-columns:1.2fr 1.8fr}}
.foot__brand{display:flex; gap:.9rem; align-items:flex-start}
.foot__tag{color:var(--ink-mid); font-size:.9rem; max-width:34ch}
.foot__cols{display:grid; grid-template-columns:repeat(2,1fr); gap:2rem 1.5rem}
@media (min-width:560px){.foot__cols{grid-template-columns:repeat(3,1fr)}}
.foot__col h4{font-family:var(--mono); font-size:.64rem; letter-spacing:.18em; text-transform:uppercase; color:var(--ink-low); margin-bottom:.8rem; font-weight:600}
.foot__col a,.foot__col p{display:block; color:var(--ink-mid); font-size:.9rem; margin-bottom:.4rem}
.foot__col a{transition:color .3s var(--ease)}
.foot__col a:hover{color:var(--amber-hi)}
.foot__base{display:flex; flex-wrap:wrap; gap:.6rem 1.5rem; justify-content:space-between; padding-block:1.5rem; font-family:var(--mono); font-size:.68rem; letter-spacing:.04em; color:var(--ink-low)}

/* ---------- light-theme override (page commits to a dark storm world; keep a graceful light) ---------- */
@media (prefers-color-scheme:light){
  :root[data-theme="light"]{ color-scheme:light }
}