/* ============================================================
   AG HEAT — theme.css
   Dark autumn / fire design system. Shared by every page.
   Edit tokens or components here once; all pages update.
   ============================================================ */

:root{
  /* warm surfaces (dark-first — no white) */
  --coal:#160800;        /* deepest background */
  --coal-2:#1E0F07;      /* alternating section */
  --coal-3:#25130A;      /* raised band */
  --panel:#271811;       /* card surface */
  --panel-2:#2F1D13;     /* card hover / inner */
  --line:rgba(255,236,222,.09);   /* hairline borders on dark */
  --line-2:rgba(255,236,222,.16);

  /* accents */
  --ember:#F6A532;       /* primary accent — sampled from the AGHeat wordmark (2026-07-21) */
  --flame:#F97316;       /* secondary */
  --flame-dk:#EA580C;
  --amber:#FBBF24;       /* highlight */
  --rust:#C2410C;        /* burnt */
  --red:#B91C1C;         /* deep autumn red */

  /* text on dark */
  --ink:#F6ECE3;         /* primary warm off-white */
  --ink-2:rgba(246,236,227,.66);
  --ink-3:rgba(246,236,227,.42);
  --ink-4:rgba(246,236,227,.26);

  /* rgb helpers */
  --coal-rgb:22,8,0;--ember-rgb:246,165,50;--flame-rgb:249,115,22;--amber-rgb:251,191,36;--red-rgb:185,28,28;

  --fh:'Manrope',sans-serif;--fb:'Inter',sans-serif;
  --r:8px;--rl:14px;--nav-h:72px;--mw:1200px;--mwr:820px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--fb);color:var(--ink);background:var(--coal);line-height:1.65;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:rgba(var(--ember-rgb),.3);color:#fff}

/* ── layout ─────────────────────────────── */
.container{max-width:var(--mw);margin:0 auto;padding:0 24px}
.sp{padding:88px 0}
.sps{padding:60px 0}
.bg-2{background:var(--coal-2)}
.bg-3{background:var(--coal-3)}

/* ── type ───────────────────────────────── */
.eyebrow{display:block;font-family:var(--fh);font-size:.68rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--ember);margin-bottom:12px}
.sh{font-family:var(--fh);font-size:clamp(1.7rem,3.4vw,2.35rem);font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.12}
.lede{font-size:1rem;color:var(--ink-2);line-height:1.75}
.sec-hdr{max-width:640px;margin:0 auto 52px;text-align:center}
.sec-hdr .sub{font-size:.98rem;color:var(--ink-2);line-height:1.72;margin-top:14px}

/* ── buttons ────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--fh);font-size:.85rem;font-weight:700;letter-spacing:.03em;padding:14px 28px;border-radius:var(--r);border:2px solid transparent;cursor:pointer;transition:all .2s;white-space:nowrap}
.btn--ember{background:var(--ember);color:#2A1204}.btn--ember:hover{background:var(--amber);transform:translateY(-1px)}
.btn--primary{background:var(--flame);color:#fff}.btn--primary:hover{background:var(--flame-dk);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}.btn--ghost:hover{border-color:var(--ember);color:var(--ember)}
.btn--sm{padding:10px 20px;font-size:.78rem}

/* ── nav ────────────────────────────────── */
.nav{position:fixed;inset:0 0 auto 0;z-index:999;height:var(--nav-h);background:rgba(var(--coal-rgb),.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.nav.scrolled{box-shadow:0 6px 30px rgba(0,0,0,.5)}
.nav__inner{max-width:var(--mw);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav__logo{font-family:var(--fh);font-size:1.5rem;font-weight:800;color:#fff;letter-spacing:-.03em;display:flex;align-items:center;gap:9px}
.nav__logo span{color:var(--ember)}
.nav__logo img{height:30px;width:auto}
.nav__links{display:flex;align-items:center;gap:30px;position:absolute;left:50%;transform:translateX(-50%);white-space:nowrap;width:max-content}
.nav__links a{font-size:.82rem;font-weight:500;color:var(--ink-2);transition:color .2s}.nav__links a:hover{color:var(--ink)}
.nav__ctas{display:flex;gap:10px;align-items:center}
.nav__hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav__hamburger span{display:block;width:22px;height:2px;background:var(--ink-2);border-radius:2px}

/* ── hero (home) ────────────────────────── */
.hero{background:var(--coal);position:relative;overflow:hidden;padding:calc(var(--nav-h) + 76px) 0 88px}
.hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(var(--flame-rgb),.05) 1px,transparent 1px),linear-gradient(90deg,rgba(var(--flame-rgb),.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(circle at 60% 40%,#000,transparent 80%)}
.hero::after{content:'';position:absolute;top:-14%;right:-6%;width:640px;height:640px;background:radial-gradient(circle,rgba(var(--flame-rgb),.32),transparent 62%);filter:blur(24px);pointer-events:none}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero__pill{display:inline-flex;align-items:center;gap:8px;background:rgba(var(--ember-rgb),.12);border:1px solid rgba(var(--ember-rgb),.32);color:var(--ember);font-family:var(--fh);font-size:.72rem;font-weight:700;letter-spacing:.05em;padding:7px 16px;border-radius:100px;margin-bottom:24px}
.hero__hl{font-family:var(--fh);font-size:clamp(2.3rem,5.2vw,3.6rem);font-weight:800;line-height:1.05;letter-spacing:-.025em;color:var(--ink);margin-bottom:22px}
.hero__hl em{color:var(--ember);font-style:normal}
.hero__sub{font-size:1.06rem;color:var(--ink-2);line-height:1.7;max-width:520px;margin-bottom:14px}
.hero__micro{font-size:.9rem;color:var(--ink-3);line-height:1.7;max-width:520px;margin-bottom:30px}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}
.trust-strip{display:flex;gap:22px;flex-wrap:wrap}
.ti{display:flex;align-items:center;gap:7px;font-family:var(--fh);font-size:.76rem;font-weight:600;color:var(--ink-3)}
.ti svg{color:var(--ember)}
.hero__art{position:relative;display:flex;align-items:center;justify-content:center;min-height:360px}
.hero__flame{position:relative;z-index:1;width:270px;height:270px;filter:drop-shadow(0 18px 50px rgba(249,115,22,.5))}
.hero__badge{position:absolute;bottom:8px;right:0;background:rgba(39,24,17,.92);border:1px solid rgba(var(--ember-rgb),.3);border-radius:var(--rl);padding:14px 20px;backdrop-filter:blur(8px);z-index:2}
.hero__badge-label{font-family:var(--fh);font-size:.6rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ember);margin-bottom:4px}
.hero__badge-val{font-family:var(--fh);font-size:1rem;font-weight:800;color:var(--ink)}

/* ── page hero (inner) ──────────────────── */
.page-hero{background:var(--coal);position:relative;overflow:hidden;padding:calc(var(--nav-h) + 60px) 0 56px}
.page-hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(var(--flame-rgb),.05) 1px,transparent 1px),linear-gradient(90deg,rgba(var(--flame-rgb),.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(circle at 70% 30%,#000,transparent 78%)}
.page-hero::after{content:'';position:absolute;top:-30%;right:-4%;width:520px;height:520px;background:radial-gradient(circle,rgba(var(--flame-rgb),.26),transparent 62%);filter:blur(22px);pointer-events:none}
.page-hero__inner{position:relative;z-index:1;max-width:var(--mw);margin:0 auto;padding:0 24px}
.crumb{display:inline-flex;align-items:center;gap:6px;font-family:var(--fh);font-size:.72rem;font-weight:700;color:var(--ink-3);letter-spacing:.08em;text-transform:uppercase;margin-bottom:20px}
.crumb:hover{color:var(--ember)}
.page-hero h1{font-family:var(--fh);font-size:clamp(2rem,4.6vw,3rem);font-weight:800;line-height:1.08;letter-spacing:-.02em;color:var(--ink);margin-bottom:16px;max-width:760px}
.page-hero__sub{font-size:1.02rem;color:var(--ink-2);line-height:1.72;max-width:620px}
.page-hero__tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.tag{display:inline-block;background:rgba(var(--ember-rgb),.12);border:1px solid rgba(var(--ember-rgb),.28);color:var(--ember);font-family:var(--fh);font-size:.65rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:4px 12px;border-radius:100px}
/* Industry hero — full-bleed photo behind the title, warmed into the coal theme */
.ind-hero{position:relative;overflow:hidden;min-height:60vh;display:flex;align-items:flex-end;padding:0 0 54px}
.ind-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.ind-hero::after{content:'';position:absolute;inset:0;z-index:1;background:linear-gradient(to top,rgba(var(--coal-rgb),.97) 4%,rgba(var(--coal-rgb),.74) 42%,rgba(var(--coal-rgb),.42) 100%)}
.ind-hero__glow{position:absolute;bottom:-20%;left:-6%;width:520px;height:520px;background:radial-gradient(circle,rgba(var(--ember-rgb),.22),transparent 62%);filter:blur(30px);z-index:1;pointer-events:none}
.ind-hero__inner{position:relative;z-index:2;max-width:var(--mw);margin:0 auto;padding:0 24px;width:100%}
.ind-hero h1{font-family:var(--fh);font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;line-height:1.06;letter-spacing:-.02em;color:var(--ink);margin:14px 0 16px;max-width:820px}
.ind-hero .page-hero__sub{max-width:640px}
@media(max-width:640px){.ind-hero{min-height:52vh;padding-bottom:40px}}

/* ── spec strip ─────────────────────────── */
.spec-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-top:36px}
.spec-block{background:var(--panel);border:1px solid var(--line);border-radius:var(--rl);padding:22px 24px}
.spec-block__val{font-family:var(--fh);font-size:1.5rem;font-weight:800;color:var(--ember);line-height:1;margin-bottom:7px}
.spec-block__lbl{font-size:.82rem;color:var(--ink-3);line-height:1.5}

/* ── product photo (white card on the dark theme) ── */
.prod-photo{background:#fff;border-radius:16px;padding:22px;max-width:440px;margin:0 auto 44px;box-shadow:0 12px 34px rgba(0,0,0,.28)}
.prod-photo img{width:100%;height:auto;display:block}

/* ── content grid ───────────────────────── */
.content-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.content-grid h2{font-family:var(--fh);font-size:1.5rem;font-weight:800;color:var(--ink);margin-bottom:18px}
.content-grid p{font-size:.97rem;color:var(--ink-2);line-height:1.85;margin-bottom:16px}
.use-list{display:flex;flex-direction:column;gap:11px;margin-top:4px}
.use-list li{position:relative;padding-left:28px;font-size:.94rem;color:var(--ink-2);line-height:1.6}
.use-list li::before{content:'';position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:rgba(var(--ember-rgb),.18);box-shadow:inset 0 0 0 2px var(--ember)}

/* ── feature grid ───────────────────────── */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.feature-item{display:flex;gap:14px;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--rl);transition:border-color .2s}
.feature-item:hover{border-color:rgba(var(--ember-rgb),.35)}
.feature-item__icon{width:34px;height:34px;flex-shrink:0;border-radius:9px;background:rgba(var(--flame-rgb),.12);color:var(--ember);display:flex;align-items:center;justify-content:center}
.feature-item__title{font-family:var(--fh);font-size:.92rem;font-weight:800;color:var(--ink);margin-bottom:4px}
.feature-item__desc{font-size:.85rem;color:var(--ink-3);line-height:1.6}

/* ── product cards ──────────────────────── */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.prod-card{border:1px solid var(--line);border-radius:var(--rl);padding:28px;background:var(--panel);transition:all .2s;position:relative;overflow:hidden;display:flex;flex-direction:column}
.prod-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--flame),var(--amber));transform:scaleX(0);transform-origin:left;transition:transform .25s}
.prod-card:hover{border-color:rgba(var(--flame-rgb),.45);background:var(--panel-2);transform:translateY(-2px)}
.prod-card:hover::before{transform:scaleX(1)}
.prod-card__icon{width:46px;height:46px;border-radius:11px;background:rgba(var(--flame-rgb),.12);color:var(--ember);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.prod-card h3{font-family:var(--fh);font-size:1.08rem;font-weight:800;color:var(--ink);margin-bottom:9px}
.prod-card p{font-size:.9rem;color:var(--ink-2);line-height:1.7;margin-bottom:16px;flex:1}
.prod-card .lnk{font-family:var(--fh);font-size:.78rem;font-weight:700;color:var(--ember);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.prod-card:hover .lnk{gap:10px}

/* ── application chips ──────────────────── */
.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}
.app{display:flex;align-items:center;gap:13px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);transition:all .2s}
.app:hover{border-color:rgba(var(--ember-rgb),.4);background:var(--panel-2)}
.app svg{color:var(--ember);flex-shrink:0}
.app span{font-family:var(--fh);font-size:.9rem;font-weight:700;color:var(--ink)}

/* ── why / value cards ──────────────────── */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.why-card{padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:var(--rl)}
.why-card__icon{width:44px;height:44px;border-radius:11px;background:rgba(var(--flame-rgb),.12);color:var(--ember);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.why-card h3{font-family:var(--fh);font-size:1.02rem;font-weight:800;color:var(--ink);margin-bottom:8px}
.why-card p{font-size:.9rem;color:var(--ink-2);line-height:1.72}

/* ── steps ──────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:s}
.stp__n{counter-increment:s;font-family:var(--fh);font-size:2.2rem;font-weight:800;color:rgba(var(--flame-rgb),.35);line-height:1;margin-bottom:10px}
.stp__n::before{content:'0' counter(s)}
.stp h4{font-family:var(--fh);font-size:1rem;font-weight:800;color:var(--ink);margin-bottom:7px}
.stp p{font-size:.9rem;color:var(--ink-2);line-height:1.72}

/* ── cta band ───────────────────────────── */
.cta-band{background:var(--coal-3);position:relative;overflow:hidden;padding:76px 0}
.cta-band::after{content:'';position:absolute;bottom:-45%;left:50%;transform:translateX(-50%);width:720px;height:520px;background:radial-gradient(circle,rgba(var(--flame-rgb),.28),transparent 60%);filter:blur(26px)}

/* ── footer ─────────────────────────────── */
.footer{background:#0F0500;padding:56px 0 26px;border-top:1px solid var(--line)}
.footer__inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.footer__logo{font-family:var(--fh);font-size:1.35rem;font-weight:800;color:#fff;letter-spacing:-.03em}.footer__logo span{color:var(--ember)}
.footer__logo img{height:26px;width:auto}
.footer__tag{font-size:.86rem;color:var(--ink-3);margin:12px 0 16px;line-height:1.6;max-width:250px}
.footer__contact a{display:block;font-size:.86rem;color:var(--ink-2);margin-bottom:6px}
.footer__contact a:hover{color:var(--ember)}
.footer__col h4{font-family:var(--fh);font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin-bottom:16px}
.footer__allind{border-top:1px solid var(--line);margin-top:4px;padding-top:24px;margin-bottom:20px}
.footer__allind h4{font-family:var(--fh);font-size:.62rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-4);margin-bottom:14px}
.footer__allind-links{display:flex;flex-wrap:wrap;gap:9px 18px}
.footer__allind-links a{font-size:.8rem;color:var(--ink-3);transition:color .2s}
.footer__allind-links a:hover{color:var(--ember)}
.footer__col ul li{margin-bottom:10px}
.footer__col a{font-size:.86rem;color:var(--ink-3)}.footer__col a:hover{color:var(--ink)}
.footer__copy{padding-top:22px;font-size:.77rem;color:var(--ink-4)}

/* ── responsive ─────────────────────────── */
@media(max-width:860px){
  .hero__inner{grid-template-columns:1fr;gap:36px}
  .hero__art{order:-1;min-height:220px}
  .hero__flame{width:180px;height:180px}
  .content-grid{grid-template-columns:1fr;gap:32px}
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  :root{--nav-h:64px}
  .nav__links,.nav__ctas{display:none}
  .nav__hamburger{display:flex}
  .sp{padding:60px 0}
}
@media(max-width:520px){.footer__inner{grid-template-columns:1fr}}

/* ============================================================
   HOMEPAGE SECTIONS (mirror of AG Chill layout)
   ============================================================ */

/* ── industry cards (photo-less: warm gradient + icon header) ── */
.ind-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.ind-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--rl);background:var(--panel);overflow:hidden;transition:all .2s}
.ind-card:hover{border-color:rgba(var(--flame-rgb),.45);box-shadow:0 16px 40px rgba(0,0,0,.35);transform:translateY(-2px)}
.ind-card__img{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.ind-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.ind-card:hover .ind-card__img img{transform:scale(1.05)}
.ind-card__body{padding:22px 24px;display:flex;flex-direction:column;flex:1}
.ind-card__tag{font-family:var(--fh);font-size:.6rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ember);margin-bottom:8px}
.ind-card__name{font-family:var(--fh);font-size:1.08rem;font-weight:800;color:var(--ink);margin-bottom:9px}
.ind-card__desc{font-size:.9rem;color:var(--ink-2);line-height:1.65;margin-bottom:16px;flex:1}
.ind-card__cta{font-family:var(--fh);font-size:.78rem;font-weight:700;color:var(--ember);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.ind-card:hover .ind-card__cta{gap:10px}
/* "More Industries" compact expand-on-hover cards (top-6 + these, like AG Chill) */
.mind-grid{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start}
.mind-col{flex:1 1 calc(25% - 6px);min-width:0;display:flex;flex-direction:column;gap:8px}
.mind-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--rl);background:var(--panel);overflow:hidden;transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .2s,box-shadow .2s}
.mind-card:hover{border-color:rgba(var(--flame-rgb),.45);box-shadow:0 16px 40px rgba(0,0,0,.35);z-index:3}
.mind-card__img{max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.22,1,.36,1)}
.mind-card:hover .mind-card__img{max-height:150px}
.mind-card__img img{width:100%;height:150px;object-fit:cover;display:block}
.mind-card__body{padding:16px 18px}
.mind-card__tag{display:block;font-family:var(--fh);font-size:.58rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ember);max-height:0;opacity:0;overflow:hidden;transition:max-height .3s ease,opacity .3s ease,margin-bottom .3s ease;margin-bottom:0}
.mind-card:hover .mind-card__tag{max-height:20px;opacity:1;margin-bottom:6px}
.mind-card__name{font-family:var(--fh);font-size:.82rem;font-weight:800;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:2.5em;line-height:1.25;transition:color .2s}
.mind-card:hover .mind-card__name{color:var(--ember)}
.mind-card__arrow{flex-shrink:0;opacity:0;transform:translateX(-5px);transition:opacity .25s,transform .25s;color:var(--ember)}
.mind-card:hover .mind-card__arrow{opacity:1;transform:translateX(0)}
.mind-card__desc{display:block;max-height:0;opacity:0;overflow:hidden;font-family:var(--fb);font-size:.82rem;font-weight:400;color:var(--ink-2);line-height:1.6;transition:max-height .3s ease,opacity .3s ease,margin-top .3s ease;margin-top:0}
.mind-card:hover .mind-card__desc{max-height:90px;opacity:1;margin-top:10px}
@media(max-width:900px){.mind-col{flex-basis:calc(50% - 4px)}}
@media(max-width:560px){.mind-col{flex-basis:calc(50% - 4px)}.mind-card__img{max-height:150px}.mind-card__desc{max-height:90px;opacity:1;margin-top:10px}.mind-card__tag{max-height:20px;opacity:1;margin-bottom:6px}}

/* ── homepage product cards (cat + name + desc + button) ── */
.pcard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--rl);background:var(--panel);padding:26px;transition:all .2s}
.pcard:hover{border-color:rgba(var(--flame-rgb),.45);background:var(--panel-2);transform:translateY(-2px)}
.pcard__icon{width:46px;height:46px;border-radius:11px;background:rgba(var(--flame-rgb),.12);color:var(--ember);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.pcard__cat{font-family:var(--fh);font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ember);margin-bottom:7px}
.pcard__name{font-family:var(--fh);font-size:1.05rem;font-weight:800;color:var(--ink);margin-bottom:9px}
.pcard__desc{font-size:.88rem;color:var(--ink-2);line-height:1.65;margin-bottom:16px;flex:1}

/* ── comparison table ── */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--rl);-webkit-overflow-scrolling:touch}
.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:.9rem}
.cmp thead th{background:var(--coal-3);color:var(--ink);font-family:var(--fh);font-weight:800;font-size:.78rem;letter-spacing:.02em;text-align:left;padding:14px 18px;border-bottom:1px solid var(--line)}
.cmp td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp tbody tr:hover td{background:var(--panel)}
.cmp td:first-child{font-family:var(--fh);font-weight:800;color:var(--ember);white-space:nowrap}

/* ── how it works band ── */
.how{background:var(--coal-3);position:relative;overflow:hidden}
.how::after{content:'';position:absolute;top:-30%;left:-6%;width:520px;height:520px;background:radial-gradient(circle,rgba(var(--flame-rgb),.16),transparent 62%);filter:blur(24px);pointer-events:none}
.how .container{position:relative;z-index:1}
.hsteps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.hstep{position:relative}
.hstep__n{font-family:var(--fh);font-size:.9rem;font-weight:800;color:var(--flame);letter-spacing:.1em;margin-bottom:14px}
.hstep__icon{width:46px;height:46px;border-radius:12px;background:rgba(var(--flame-rgb),.14);color:var(--ember);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.hstep__title{font-family:var(--fh);font-size:1.05rem;font-weight:800;color:var(--ink);margin-bottom:8px}
.hstep__desc{font-size:.9rem;color:var(--ink-2);line-height:1.72}
.how__footer{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}

/* ── selector tool ── */
.sel{background:var(--coal-2)}
.sel__inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:start}
.sel__bullets{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.sel__bullet{display:flex;align-items:center;gap:11px;font-size:.92rem;color:var(--ink-2)}
.sel__dot{width:8px;height:8px;border-radius:50%;background:var(--ember);flex-shrink:0;box-shadow:0 0 0 4px rgba(var(--ember-rgb),.15)}
.sel__form{background:var(--panel);border:1px solid var(--line);border-radius:var(--rl);padding:30px}
.sel__form h3{font-family:var(--fh);font-size:1.15rem;font-weight:800;color:var(--ink);margin-bottom:22px}
.fld{margin-bottom:16px}
.fld label{display:block;font-family:var(--fh);font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:7px}
.fc{width:100%;background:var(--coal-2);border:1.5px solid var(--line-2);border-radius:var(--r);padding:13px 14px;font-family:var(--fb);font-size:.92rem;color:var(--ink);transition:border-color .2s}
.fc:focus{outline:none;border-color:var(--ember)}
select.fc{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23F6A532' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.sel__result{margin-top:6px;padding:20px;border-radius:var(--rl);background:var(--coal-3);border:1px solid rgba(var(--ember-rgb),.3);display:none}
.sel__result.show{display:block}
.sel__result .rlabel{font-family:var(--fh);font-size:.62rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ember);margin-bottom:8px}
.sel__result .rname{font-family:var(--fh);font-size:1.1rem;font-weight:800;color:var(--ink);margin-bottom:6px}
.sel__result .rdesc{font-size:.88rem;color:var(--ink-2);line-height:1.6;margin-bottom:14px}
/* heater calculator: value+unit inputs + result metrics */
.split{display:flex;gap:8px}
.split input.fc{flex:1;min-width:0}
.split select.fc.unit{width:82px;flex:0 0 auto;padding-right:28px}
.rmetrics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:4px 0 14px}
.rmetric{background:rgba(var(--ember-rgb),.06);border:1px solid var(--line);border-radius:var(--r);padding:10px 12px}
.rmetric span{display:block;font-size:.62rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin-bottom:3px}
.rmetric strong{font-family:var(--fh);font-size:.9rem;color:var(--ink);font-weight:700}
/* chiller-format calculator layout (mirrors AG Chill, ember-themed) */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.fg{display:flex;flex-direction:column;gap:5px}
.fg--full{grid-column:span 2}
.fl{font-family:var(--fh);font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.split-input{display:flex}
.split-input .fc:first-child{flex:1;min-width:0;border-radius:var(--r) 0 0 var(--r);border-right:none}
.split-input .fc:last-child{width:80px;flex-shrink:0;border-radius:0 var(--r) var(--r) 0;background:rgba(255,255,255,.07);font-size:.82rem;padding-left:10px;padding-right:24px}
.split-input select.fc{background-image:none}
.split-input select.fc:hover,.split-input select.fc:focus{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23F6A532' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E")}
.cbox-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-bottom:20px}
.cbox{display:flex;align-items:center;gap:7px;font-size:.8rem;color:var(--ink-2);cursor:pointer}
.cbox input{width:14px;height:14px;accent-color:var(--ember);cursor:pointer}
.systype{display:flex;flex-direction:column;gap:3px;border:1.5px solid var(--line-2);border-radius:var(--r);padding:13px 15px;cursor:pointer;transition:border-color .2s}
.systype.on{border-color:var(--ember)}
.systype__t{font-family:var(--fh);font-size:.85rem;font-weight:800;color:var(--ink)}
.systype__d{font-size:.74rem;color:var(--ink-3);line-height:1.35}
@media(max-width:520px){.form-grid{grid-template-columns:1fr}.fg--full{grid-column:span 1}.cbox-grid{grid-template-columns:1fr}}

@media(max-width:860px){
  .sel__inner{grid-template-columns:1fr;gap:32px}
  .how__footer{flex-direction:column;align-items:flex-start}
}

/* ============================================================
   TIER-2 ADDITIONS — accent band, forms, faq, warranty, note
   ============================================================ */

/* ── bright accent band (breaks up the dark) ── */
.accent-band{background:linear-gradient(100deg,var(--flame-dk),var(--flame) 48%,var(--amber));position:relative;overflow:hidden;padding:46px 0}
.accent-band::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(0,0,0,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.06) 1px,transparent 1px);background-size:40px 40px;opacity:.5}
.accent-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.accent-band h3{font-family:var(--fh);font-size:clamp(1.3rem,2.6vw,1.7rem);font-weight:800;color:#2A1204;letter-spacing:-.01em;line-height:1.15;max-width:640px}
.accent-band p{font-size:.95rem;color:rgba(42,18,4,.82);margin-top:6px;max-width:560px}
.btn--coal{background:var(--coal);color:var(--ink)}.btn--coal:hover{background:#000;transform:translateY(-1px)}

/* ── quote form ── */
.qform{background:var(--panel);border:1px solid var(--line);border-radius:var(--rl);padding:30px}
.qgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.qgrid .full{grid-column:1 / -1}
textarea.fc{min-height:120px;resize:vertical;font-family:var(--fb)}
.form-note{font-size:.78rem;color:var(--ink-3);margin-top:14px;text-align:center}
@media(max-width:560px){.qgrid{grid-template-columns:1fr}}

/* ── FAQ accordion ── */
.faq-wrap{max-width:var(--mwr);margin:0 auto}
.faq-cat{font-family:var(--fh);font-size:.7rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--flame);margin:40px 0 4px}
.faq-cat:first-child{margin-top:0}
details.faq{border-bottom:1px solid var(--line)}
details.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;position:relative;font-family:var(--fh);font-size:1.02rem;font-weight:700;color:var(--ink);line-height:1.4}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:'+';position:absolute;right:6px;top:16px;font-size:1.4rem;font-weight:400;color:var(--ember);transition:transform .2s}
details.faq[open] summary::after{content:'\2212'}
details.faq summary:hover{color:var(--ember)}
.faq-a{padding:0 0 22px}
.faq-a p{font-size:.95rem;color:var(--ink-2);line-height:1.85;margin-bottom:12px}
.faq-a p:last-child{margin-bottom:0}
.faq-a a{color:var(--ember);text-decoration:underline;text-decoration-color:rgba(var(--ember-rgb),.4)}
.faq-a ul{padding-left:20px;margin-bottom:12px}
.faq-a li{list-style:disc;font-size:.95rem;color:var(--ink-2);line-height:1.7;margin-bottom:6px}

/* ── warranty extras ── */
.cert-band{display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--rl);padding:26px 30px}
.cert{font-family:var(--fh);font-weight:800;font-size:.92rem;color:var(--ember)}
.cert span{display:block;font-family:var(--fb);font-weight:400;font-size:.76rem;color:var(--ink-3);margin-top:2px}
.note{background:rgba(var(--ember-rgb),.06);border-left:4px solid var(--ember);border-radius:0 var(--r) var(--r) 0;padding:18px 22px}
.note p{font-size:.92rem;color:var(--ink);line-height:1.75}.note a{color:var(--ember);font-weight:600}

/* ── hero flame gentle flicker ── */
@keyframes flameflicker{0%,100%{transform:scale(1) translateY(0)}50%{transform:scale(1.025) translateY(-3px)}}
.hero__flame{animation:flameflicker 3.4s ease-in-out infinite;transform-origin:center bottom;will-change:transform}
@media(prefers-reduced-motion:reduce){.hero__flame{animation:none}}

/* ── long-form guide body ── */
.guide-body{max-width:var(--mwr);margin:0 auto}
.guide-body h2{font-family:var(--fh);font-size:1.35rem;font-weight:800;color:var(--ink);margin:44px 0 16px;padding-top:44px;border-top:1px solid var(--line)}
.guide-body h2:first-child{margin-top:0;padding-top:0;border-top:none}
.guide-body h3{font-family:var(--fh);font-size:1rem;font-weight:800;color:var(--ink);margin:26px 0 10px}
.guide-body p{font-size:.97rem;color:var(--ink-2);line-height:1.9;margin-bottom:16px}
.guide-body ul{padding-left:20px;margin-bottom:16px}
.guide-body li{list-style:disc;font-size:.97rem;color:var(--ink-2);line-height:1.8;margin-bottom:8px}
.guide-body strong{color:var(--ink);font-weight:700}
.guide-body a{color:var(--ember);text-decoration:underline;text-decoration-color:rgba(var(--ember-rgb),.4)}
.guide-body .callout{background:rgba(var(--ember-rgb),.06);border-left:4px solid var(--ember);border-radius:0 var(--r) var(--r) 0;padding:18px 22px;margin:26px 0}
.guide-body .callout p{margin-bottom:0;color:var(--ink)}
.guide-body h2[id]{scroll-margin-top:88px}
.toc{background:rgba(var(--ember-rgb),.05);border:1px solid var(--line-2);border-radius:var(--rl);padding:20px 24px;margin:44px 0 8px}
.toc__label{font-family:var(--fh);font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:12px}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:toc}
.toc li{margin:0 0 7px;font-size:.92rem;line-height:1.5;padding-left:26px;position:relative}
.toc li:last-child{margin-bottom:0}
.toc li::before{counter-increment:toc;content:counter(toc);position:absolute;left:0;top:0;font-family:var(--fh);font-weight:800;font-size:.72rem;color:var(--ember)}
.toc a{color:var(--ink-2);text-decoration:none;font-weight:500}
.toc a:hover{color:var(--ember)}
html{scroll-behavior:smooth}

/* Print-to-PDF spec sheet: white/ink-friendly, chrome hidden (Download Spec Sheet button) */
@media print {
  .nav, .footer, .nav__hamburger, .crumb, .print-hide, button, .btn, form,
  .cta-band, .mind-grid, .prod-grid, .page-hero__tags, [id="quote"] { display:none !important; }
  html, body { background:#fff !important; }
  * { color:#141414 !important; box-shadow:none !important; text-shadow:none !important; }
  .page-hero, section, .sp, .bg-2 { background:#fff !important; padding:12px 0 !important; }
  .page-hero::before, .page-hero::after, .ind-hero__bg, .ind-hero__glow { display:none !important; }
  .spec-block, .feature-item { background:transparent !important; border:1px solid #ccc !important; }
  a { text-decoration:none !important; }
  @page { margin:1.6cm; }
}