/* ═══════════════════════════════════
   KoolFyx — style.css (hvac- prefix)
═══════════════════════════════════ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

html {
    scroll-behavior: smooth
}

:root {
    --ice: #2DAAFF;
    --ice-l: #78D2FF;
    --ice-p: #C4ECFF;
    --navy: #04070F;
    --card: #0B1628;
    --card2: #0F1D3A;
    --steel: #182440;
    --steel-l: #243560;
    --gold: #F8C634;
    --gold-d: #A07808;
    --white: #FFFFFF;
    --grey: #5A7298;
    --grey-l: #8AA0BF;
    --grey-p: #B0C4DC;
    --green: #22C880;
    --red: #FF5272;
    --amber: #F5A623;
    --purple: #9B6DFF;
    --c-bg: #F4F8FF;
    --c-card: #FFFFFF;
    --c-blue: #1862A8;
    --c-blue-l: #2878CC;
    --c-gold: #B5820A;
    --c-text: #0F1E38;
    --c-sub: #4A6080;
    --c-border: #C8D8EC;
    --r: 12px;
    --r-lg: 20px;
    --r-xl: 28px;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--navy);
    color: var(--white);
    overflow-x: hidden;
    min-height: 100vh
}

::-webkit-scrollbar {
    width: 4px
}

::-webkit-scrollbar-track {
    background: transparent
}

::-webkit-scrollbar-thumb {
    background: var(--steel-l);
    border-radius: 2px
}

/* BG GRID */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: linear-gradient(rgba(45, 170, 255, .03)1px, transparent 1px), linear-gradient(90deg, rgba(45, 170, 255, .03)1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0
}

/* ── UTILS ── */
.hvac-hide {
    display: none !important
}

.hvac-flex {
    display: flex
}

.hvac-ai-c {
    align-items: center
}

.hvac-jb {
    justify-content: space-between
}

.hvac-g8 {
    gap: 8px
}

.hvac-g12 {
    gap: 12px
}

.hvac-g16 {
    gap: 16px
}

.hvac-w100 {
    width: 100%
}

.hvac-tc {
    text-align: center
}

/* ── NAVBAR ── */
.hvac-nav {
    position: sticky;
    top: 0;
    z-index: 500;
    background: rgba(4, 7, 15, .88);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(24, 36, 64, .9);
    padding: 0 20px
}

.hvac-nav-in {
    max-width: 1200px;
    margin: 0 auto;
    height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between
}

.hvac-logo {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: 27px;
    color: var(--white);
    text-decoration: none;
    line-height: 1
}

.hvac-logo span {
    color: var(--ice)
}

.hvac-logo-tag {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: 11px;
    color: var(--grey);
    margin-top: -3px
}

.hvac-nav-r {
    display: flex;
    align-items: center;
    gap: 10px
}
.whte span{
    color: #fff !important;
}

.hvac-chip-live {
    background: rgba(248, 198, 52, .1);
    border: 1px solid rgba(248, 198, 52, .25);
    border-radius: 20px;
    padding: 5px 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 5px
}

.hvac-live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
    animation: hvac-pulse 1.5s infinite
}

@keyframes hvac-pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1)
    }

    50% {
        opacity: .4;
        transform: scale(.75)
    }
}

@media(max-width:600px) {

    .hvac-logo-tag,
    .hvac-nav-r .hvac-btn-sm {
        display: none
    }
}

/* ── BUTTONS ── */
.hvac-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: var(--r);
    border: none;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .2px;
    transition: all .2s;
    text-decoration: none;
    white-space: nowrap
}

.hvac-btn-pri {
    background: linear-gradient(135deg, #3AB8FF, #1485D4);
    color: var(--navy);
    box-shadow: 0 6px 20px rgba(45, 170, 255, .25)
}

.hvac-btn-pri:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(45, 170, 255, .38)
}

.hvac-btn-gold {
    background: linear-gradient(135deg, #F8C634, #CF9B12);
    color: var(--navy);
    box-shadow: 0 6px 20px rgba(248, 198, 52, .25)
}

.hvac-btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(248, 198, 52, .35)
}

.hvac-btn-ghost {
    background: transparent;
    color: var(--grey-l);
    border: 1px solid var(--steel-l)
}

.hvac-btn-ghost:hover {
    color: var(--white);
    border-color: var(--grey-l)
}

.hvac-btn-outline-ice {
    background: transparent;
    color: var(--ice);
    border: 1.5px solid var(--ice)
}

.hvac-btn-outline-ice:hover {
    background: rgba(45, 170, 255, .08)
}

.hvac-btn-sm {
    padding: 9px 18px;
    font-size: 12px;
    border-radius: 10px
}

.hvac-btn-lg {
    padding: 17px 34px;
    font-size: 16px;
    border-radius: var(--r-lg)
}

.hvac-btn-full {
    width: 100%
}

/* ── TAGS ── */
.hvac-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
    font-family: 'JetBrains Mono', monospace;
    text-transform: uppercase
}

.hvac-t-ice {
    background: rgba(45, 170, 255, .1);
    color: var(--ice);
    border: 1px solid rgba(45, 170, 255, .3)
}

.hvac-t-gold {
    background: rgba(248, 198, 52, .1);
    color: var(--gold);
    border: 1px solid rgba(248, 198, 52, .28)
}

.hvac-t-green {
    background: rgba(34, 200, 128, .1);
    color: var(--green);
    border: 1px solid rgba(34, 200, 128, .28)
}

.hvac-t-amber {
    background: rgba(245, 166, 35, .1);
    color: var(--amber);
    border: 1px solid rgba(245, 166, 35, .28)
}

/* ── HERO ── */
.hvac-hero {
    padding: 76px 20px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1
}

.hvac-hero-glow {
    position: absolute;
    top: -140px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(45, 170, 255, .07)0%, transparent 60%);
    pointer-events: none
}

.hvac-hero-tags {
    margin-bottom: 20px;
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap
}

.hvac-h1 {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: clamp(46px, 8.5vw, 88px);
    line-height: .9;
    letter-spacing: -2.5px;
    color: var(--white);
    margin-bottom: 16px
}

.hvac-h1 .hvac-ci {
    color: var(--ice)
}

.hvac-h1 .hvac-cg {
    color: var(--gold)
}

.hvac-hero-tagline {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: clamp(19px, 3vw, 27px);
    color: var(--grey-l);
    margin-bottom: 12px
}

.hvac-hero-tagline strong {
    color: var(--gold);
    font-style: normal
}

.hvac-hero-sub {
    font-size: 15px;
    color: var(--grey);
    max-width: 520px;
    margin: 0 auto 38px;
    line-height: 1.75
}

.hvac-hero-btns {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px
}

/* ── TYPE SELECT ── */
.hvac-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto
}

@media(max-width:580px) {
    .hvac-type-grid {
        grid-template-columns: 1fr
    }
}

.hvac-type-card {
    background: var(--card2);
    border: 2px solid var(--steel-l);
    border-radius: var(--r-xl);
    padding: 28px 24px;
    cursor: pointer;
    transition: all .25s;
    text-align: left;
    position: relative;
    overflow: hidden
}

.hvac-type-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .3s;
    border-radius: inherit
}

.hvac-type-card.hvac-tc-pro::before {
    background: linear-gradient(135deg, rgba(45, 170, 255, .1), transparent)
}

.hvac-type-card.hvac-tc-home::before {
    background: linear-gradient(135deg, rgba(248, 198, 52, .08), transparent)
}

.hvac-type-card:hover,
.hvac-type-card.hvac-picked {
    border-width: 2px
}

.hvac-type-card.hvac-tc-pro:hover,
.hvac-type-card.hvac-tc-pro.hvac-picked {
    border-color: var(--ice)
}

.hvac-type-card.hvac-tc-home:hover,
.hvac-type-card.hvac-tc-home.hvac-picked {
    border-color: var(--gold)
}

.hvac-type-card:hover::before,
.hvac-type-card.hvac-picked::before {
    opacity: 1
}

.hvac-tc-ico {
    font-size: 36px;
    margin-bottom: 14px
}

.hvac-tc-title {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: 27px;
    margin-bottom: 7px
}

.hvac-tc-desc {
    font-size: 13px;
    color: var(--grey);
    line-height: 1.6;
    margin-bottom: 14px
}

.hvac-tc-perks {
    display: flex;
    flex-direction: column;
    gap: 6px
}

.hvac-tc-perk {
    font-size: 12px;
    color: var(--grey-l);
    display: flex;
    align-items: flex-start;
    gap: 7px
}

.hvac-tc-perk .hvac-ck {
    color: var(--green);
    flex-shrink: 0;
    margin-top: 1px
}

.hvac-tc-btn {
    margin-top: 20px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .8px;
    text-transform: uppercase;
    font-family: 'JetBrains Mono', monospace;
    color: var(--grey);
    transition: color .2s
}

.hvac-type-card.hvac-tc-pro:hover .hvac-tc-btn {
    color: var(--ice)
}

.hvac-type-card.hvac-tc-home:hover .hvac-tc-btn {
    color: var(--gold)
}

/* ── STATS BAR ── */
.hvac-stats-bar {
    background: linear-gradient(90deg, rgba(45, 170, 255, .07), rgba(45, 170, 255, .02), rgba(45, 170, 255, .07));
    border-top: 1px solid rgba(45, 170, 255, .15);
    border-bottom: 1px solid rgba(45, 170, 255, .15);
    padding: 30px 20px;
    z-index: 1;
    position: relative
}

.hvac-stats-grid {
    max-width: 860px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center
}

@media(max-width:580px) {
    .hvac-stats-grid {
        grid-template-columns: repeat(2, 1fr)
    }
}

.hvac-sn {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: 46px;
    line-height: 1;
    color: var(--white)
}

.hvac-sn .hvac-su {
    font-size: 26px;
    color: var(--ice)
}

.hvac-sl {
    font-size: 10px;
    color: var(--grey);
    margin-top: 5px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 1.2px
}

/* ── REG WRAPPER ── */
.hvac-reg-section {
    display: none;
    z-index: 1;
    position: relative
}

.hvac-reg-section.hvac-show {
    display: block
}

.hvac-reg-inner {
    max-width: 840px;
    margin: 0 auto;
    padding: 48px 20px 80px
}

/* ── BACK BTN ── */
.hvac-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--grey);
    cursor: pointer;
    margin-bottom: 28px;
    background: none;
    border: none;
    padding: 0;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color .2s
}

.hvac-back-link:hover {
    color: var(--ice)
}

/* ── REG HEADER ── */
.hvac-reg-hdr {
    text-align: center;
    margin-bottom: 36px
}

.hvac-reg-badge {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px
}

.hvac-reg-h2 {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1;
    margin-bottom: 8px
}

.hvac-reg-sub {
    font-size: 14px;
    color: var(--grey);
    max-width: 460px;
    margin: 0 auto;
    line-height: 1.7
}

/* ── SUB-TYPE TABS ── */
.hvac-stabs {
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, .04);
    border-radius: var(--r);
    padding: 5px;
    margin-bottom: 26px;
    overflow-x: auto;
    scrollbar-width: none
}

.hvac-stabs::-webkit-scrollbar {
    display: none
}

.hvac-stab {
    flex: 1;
    min-width: 115px;
    padding: 10px 14px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    font-size: 12px;
    font-weight: 700;
    color: var(--grey);
    background: transparent;
    transition: all .2s;
    white-space: nowrap;
    text-align: center
}

.hvac-stab.hvac-on {
    background: var(--card2);
    color: var(--white);
    box-shadow: 0 2px 12px rgba(0, 0, 0, .5)
}

/* ── STEPPER ── */
.hvac-stepper {
    display: flex;
    align-items: center;
    margin-bottom: 32px
}

.hvac-st-wrap {
    display: flex;
    align-items: center;
    flex: 1
}

.hvac-st-wrap:last-child {
    flex: none
}

.hvac-st-circ {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    flex-shrink: 0;
    transition: all .3s;
    border: 2px solid var(--steel-l);
    color: var(--grey)
}

.hvac-st-circ.hvac-done {
    background: var(--green);
    border-color: var(--green);
    color: var(--navy)
}

.hvac-st-circ.hvac-active {
    background: var(--ice);
    border-color: var(--ice);
    color: var(--navy);
    box-shadow: 0 0 0 5px rgba(45, 170, 255, .16)
}

.hvac-st-bar {
    flex: 1;
    height: 2px;
    background: var(--steel-l);
    margin: 0 4px;
    transition: background .3s
}

.hvac-st-bar.hvac-done {
    background: var(--green)
}

.hvac-st-lbl {
    display: none
}

@media(min-width:560px) {
    .hvac-st-lbl {
        display: flex;
        flex-direction: column;
        margin-left: 8px;
        margin-right: 6px
    }

    .hvac-st-lbl span {
        font-size: 10px;
        font-weight: 700;
        color: var(--grey);
        white-space: nowrap;
        font-family: 'JetBrains Mono', monospace;
        letter-spacing: .5px
    }
}

.hvac-st-circ.hvac-active~.hvac-st-lbl span {
    color: #000;
}

/* ── FORM CARD ── */
.hvac-fc {
    background: var(--card2);
    border: 1px solid var(--steel-l);
    border-radius: var(--r-xl);
    padding: 28px;
    margin-bottom: 16px;
    position: relative
}

.hvac-fc::before {
    content: '';
    position: absolute;
    top: 0;
    left: 28px;
    right: 28px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 170, 255, .2), transparent)
}

.hvac-fc-title {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: 21px;
    margin-bottom: 4px
}

.hvac-fc-sub {
    font-size: 12px;
    color: var(--grey);
    margin-bottom: 24px;
    line-height: 1.6
}

.hvac-frow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px
}

@media(max-width:540px) {
    .hvac-frow {
        grid-template-columns: 1fr
    }
}

.hvac-fg {
    margin-bottom: 18px
}

.hvac-fg:last-child {
    margin-bottom: 0
}

.hvac-flabel {
    display: block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.2px;
    color: var(--grey-l);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 7px;
    text-transform: uppercase
}

.hvac-finput,
.hvac-fsel,
.hvac-ftxt {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--steel-l);
    border-radius: var(--r);
    color: var(--white);
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    transition: all .22s;
    outline: none;
    appearance: none
}

.hvac-finput::placeholder,
.hvac-ftxt::placeholder {
    color: var(--grey)
}

.hvac-finput:focus,
.hvac-fsel:focus,
.hvac-ftxt:focus {
    border-color: var(--ice);
    background: rgba(45, 170, 255, .05);
    box-shadow: 0 0 0 3px rgba(45, 170, 255, .1)
}

.hvac-fsel {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235A7298' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    cursor: pointer
}

.hvac-fsel option {
    background: var(--card2);
    color: var(--white)
}

.hvac-ftxt {
    resize: vertical;
    min-height: 88px
}

.hvac-fhint {
    font-size: 11px;
    color: var(--grey);
    margin-top: 5px;
    line-height: 1.45
}

.hvac-fhint code {
    color: var(--ice-l);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px
}

.hvac-fdiv {
    height: 1px;
    background: var(--steel-l);
    margin: 22px 0
}

/* ── RADIO PILLS ── */
.hvac-rpills {
    display: flex;
    flex-wrap: wrap;
    gap: 7px
}

.hvac-rpill {
    padding: 8px 15px;
    border-radius: 9px;
    border: 1px solid var(--steel-l);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--grey-l);
    transition: all .18s;
    user-select: none
}

.hvac-rpill:hover {
    border-color: var(--grey-l);
    color: var(--white)
}

.hvac-rpill.hvac-on {
    border-color: var(--ice);
    color: var(--ice);
    background: rgba(45, 170, 255, .09)
}

.hvac-rpill input {
    display: none
}

/* ── CHECKBOXES ── */
.hvac-clist {
    display: flex;
    flex-direction: column;
    gap: 8px
}

.hvac-ci {
    display: flex;
    /* text-align: center; */
    gap: 11px;
    padding: 12px 14px;
    border-radius: var(--r);
    /* border: 1px solid var(--steel-l); */
    cursor: pointer;
    transition: all .18s;
    user-select: none;
    background: rgba(255, 255, 255, .01);
}

.hvac-ci:hover {
    border-color: var(--grey-l);
    background: rgba(255, 255, 255, .025)
}

.hvac-ci.hvac-on {
    border-color: var(--ice);
    background: rgba(45, 170, 255, .07)
}

.hvac-ci input {
    display: none
}

.hvac-cbox {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 2px solid var(--steel-l);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .18s;
    margin-top: 1px
}

.hvac-ci.hvac-on .hvac-cbox {
    background: var(--ice);
    border-color: var(--ice);
    color: var(--navy);
    font-size: 11px;
    font-weight: 900
}

.hvac-ci-label {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--white)
}

.hvac-ci-sub {
    font-size: 11px;
    color: var(--grey);
    margin-top: 2px;
    line-height: 1.35
}

/* ── CERT GRID ── */
.hvac-cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(115px, 1fr));
    gap: 8px
}

.hvac-cert-tile {
    border: 1px solid var(--steel-l);
    border-radius: var(--r);
    padding: 14px 10px;
    cursor: pointer;
    text-align: center;
    transition: all .2s;
    background: var(--card);
    user-select: none
}

.hvac-cert-tile:hover {
    border-color: var(--grey-l)
}

.hvac-cert-tile.hvac-on {
    border-color: var(--ice);
    background: rgba(45, 170, 255, .08)
}

.hvac-ct-ico {
    font-size: 24px;
    margin-bottom: 6px
}

.hvac-ct-nm {
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--white)
}

.hvac-ct-full {
    font-size: 9px;
    color: var(--grey);
    margin-top: 3px;
    line-height: 1.3
}

/* ── ZIP CHIPS ── */
.hvac-zchips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 32px;
    margin-bottom: 8px
}

.hvac-zchip {
    background: rgba(45, 170, 255, .09);
    border: 1px solid rgba(45, 170, 255, .28);
    border-radius: 20px;
    padding: 4px 11px;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--ice-l);
    display: flex;
    align-items: center;
    gap: 5px
}

.hvac-zx {
    cursor: pointer;
    color: var(--grey);
    font-size: 14px;
    line-height: 1
}

.hvac-zx:hover {
    color: var(--red)
}

/* ── AC BRAND TILES ── */
.hvac-brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
    gap: 8px
}

.hvac-brand-tile {
    border: 1px solid var(--c-border);
    border-radius: var(--r);
    padding: 12px 8px;
    cursor: pointer;
    text-align: center;
    background: var(--c-bg);
    transition: all .2s;
    font-size: 11px;
    font-weight: 700;
    color: var(--c-sub);
    font-family: 'JetBrains Mono', monospace;
    user-select: none
}

.hvac-brand-tile:hover {
    border-color: #90A8C8;
    background: #EAF1FC
}

.hvac-brand-tile.hvac-on {
    border-color: var(--c-blue);
    background: rgba(24, 98, 168, .1);
    color: var(--c-blue)
}

/* ── HEALTH GAUGE ── */
.hvac-health-card {
    background: rgba(24, 98, 168, .05);
    border: 1px solid var(--c-border);
    border-radius: var(--r);
    padding: 16px;
    margin-top: 12px;
    display: none
}

.hvac-h-track {
    flex: 1;
    height: 8px;
    background: #D8E6F5;
    border-radius: 4px;
    overflow: hidden
}

.hvac-h-fill {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--green), var(--ice));
    transition: width .7s ease
}

.hvac-h-pct {
    font-size: 12px;
    font-weight: 700;
    color: var(--c-blue);
    min-width: 38px;
    text-align: right
}

/* ── REVIEW CARD ── */
.hvac-rev-card {
    background: var(--card);
    border: 1px solid rgba(45, 170, 255, .22);
    border-radius: var(--r-lg);
    padding: 20px;
    margin-bottom: 16px
}

.hvac-rev-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0C2E68, #1A5699);
    border: 2px solid var(--ice);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0
}

.hvac-rev-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    gap: 16px
}

.hvac-rev-row:last-child {
    border: none
}

.hvac-rev-k {
    font-size: 10px;
    color: var(--grey);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: .8px;
    flex-shrink: 0
}

.hvac-rev-v {
    font-size: 13px;
    color: var(--white);
    font-weight: 500;
    text-align: right;
    max-width: 250px;
    word-break: break-all
}

/* ── SCHEMA NOTE ── */
.hvac-schema-note {
    background: rgba(34, 200, 128, .07);
    border: 1px solid rgba(34, 200, 128, .22);
    border-radius: var(--r);
    padding: 12px 16px;
    font-size: 12px;
    color: var(--grey-l);
    line-height: 1.6;
    margin-bottom: 16px
}

.hvac-schema-note strong {
    color: var(--green)
}

/* ── STEP ACTIONS ── */
.hvac-sact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 6px
}

.hvac-sact-r {
    display: flex;
    gap: 10px;
    margin-left: auto
}

/* ── SUCCESS ── */
.hvac-success-box {
    display: none;
    text-align: center;
    animation: hvac-fu .5s ease
}

.hvac-suc-card {
    border-radius: var(--r-xl);
    padding: 40px 28px
}

.hvac-suc-ico {
    font-size: 72px;
    margin-bottom: 16px
}

.hvac-suc-h {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: clamp(30px, 5vw, 46px);
    margin-bottom: 8px
}

.hvac-suc-id {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    letter-spacing: 2px;
    margin-bottom: 16px
}

.hvac-suc-p {
    font-size: 14px;
    max-width: 420px;
    margin: 0 auto 26px;
    line-height: 1.75
}

.hvac-suc-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap
}

/* ── CONSUMER OVERRIDES (homeowner section) ── */
#hreg .hvac-fc {
    background: var(--c-card);
    border-color: var(--c-border)
}

#hreg .hvac-fc::before {
    background: linear-gradient(90deg, transparent, rgba(24, 98, 168, .15), transparent)
}

#hreg .hvac-fc-title {
    color: var(--c-text)
}

#hreg .hvac-fc-sub {
    color: var(--c-sub)
}

#hreg .hvac-flabel {
    color: #4060A0
}

#hreg .hvac-finput,
#hreg .hvac-fsel,
#hreg .hvac-ftxt {
    background: var(--c-bg);
    border-color: var(--c-border);
    color: var(--c-text)
}

#hreg .hvac-finput::placeholder,
#hreg .hvac-ftxt::placeholder {
    color: #8098C0
}

#hreg .hvac-finput:focus,
#hreg .hvac-fsel:focus,
#hreg .hvac-ftxt:focus {
    border-color: var(--c-blue);
    box-shadow: 0 0 0 3px rgba(24, 98, 168, .1);
    background: #EEF5FF
}

#hreg .hvac-fsel option {
    background: #fff;
    color: var(--c-text)
}

#hreg .hvac-fhint {
    color: var(--c-sub)
}

#hreg .hvac-fhint code {
    color: var(--c-blue)
}

#hreg .hvac-fdiv {
    background: var(--c-border)
}

#hreg .hvac-rpill {
    border-color: var(--c-border);
    color: var(--c-sub);
    background: var(--c-bg)
}

#hreg .hvac-rpill:hover {
    border-color: #8090B8;
    color: var(--c-text)
}

#hreg .hvac-rpill.hvac-on {
    border-color: var(--c-blue);
    color: var(--c-blue);
    background: rgba(24, 98, 168, .08)
}

#hreg .hvac-ci {
    border-color: var(--c-border);
    background: var(--c-bg)
}

#hreg .hvac-ci:hover {
    border-color: #8090B8;
    background: #EEF3FA
}

#hreg .hvac-ci.hvac-on {
    border-color: var(--c-blue);
    background: rgba(24, 98, 168, .07)
}

#hreg .hvac-cbox {
    border-color: var(--c-border);
    background: var(--c-card)
}

#hreg .hvac-ci.hvac-on .hvac-cbox {
    background: var(--c-blue);
    border-color: var(--c-blue);
    color: #fff
}

#hreg .hvac-ci-label {
    color: var(--c-text)
}

#hreg .hvac-ci-sub {
    color: var(--c-sub)
}

#hreg .hvac-stabs {
    background: rgba(0, 0, 0, .05)
}

#hreg .hvac-stab.hvac-on {
    background: var(--c-card);
    color: var(--c-text);
    box-shadow: 0 2px 10px rgba(0, 0, 0, .12)
}

#hreg .hvac-stab {
    color: var(--c-sub)
}

#hreg .hvac-st-circ {
    border-color: var(--c-border);
    color: #8098C0
}

#hreg .hvac-st-circ.hvac-active {
    background: var(--c-blue);
    border-color: var(--c-blue);
    color: #fff;
    box-shadow: 0 0 0 5px rgba(24, 98, 168, .14)
}

#hreg .hvac-st-bar {
    background: var(--c-border)
}

#hreg .hvac-st-bar.hvac-done {
    background: var(--green)
}

#hreg .hvac-st-circ.hvac-done {
    background: var(--green);
    border-color: var(--green);
    color: #fff
}

#hreg .hvac-btn-ghost {
    color: var(--c-sub);
    border-color: var(--c-border)
}

#hreg .hvac-btn-ghost:hover {
    color: var(--c-text);
    border-color: #8098C0
}

#hreg .hvac-reg-sub {
    color: var(--c-sub)
}

#hreg .hvac-reg-h2 {
    color: var(--c-text)
}

#hreg {
    background: linear-gradient(180deg, #EDF4FF 0%, #E4EFF9 100%)
}

/* ── DATA MAP STRIP ── */
.hvac-datamap {
    padding: 52px 20px;
    background: rgba(45, 170, 255, .025);
    border-top: 1px solid rgba(45, 170, 255, .1);
    border-bottom: 1px solid rgba(45, 170, 255, .1);
    z-index: 1;
    position: relative
}

.hvac-dm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 10px;
    max-width: 1080px;
    margin: 0 auto
}

.hvac-dm-item {
    background: var(--card2);
    border: 1px solid var(--steel-l);
    border-radius: var(--r);
    padding: 14px
}

.hvac-dm-from {
    font-size: 10px;
    color: var(--grey);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 4px
}

.hvac-dm-to {
    font-size: 12px;
    font-weight: 700;
    color: var(--ice);
    display: flex;
    align-items: center;
    gap: 4px
}

.hvac-dm-dest {
    font-size: 10px;
    color: var(--green);
    margin-top: 3px;
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.4
}

/* ── BENEFITS ── */
.hvac-benefits {
    padding: 56px 20px;
    z-index: 1;
    position: relative
}

.hvac-ben-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(256px, 1fr));
    gap: 14px;
    margin-top: 36px
}

.hvac-ben-card {
    background: var(--card2);
    border: 1px solid var(--steel-l);
    border-radius: var(--r-lg);
    padding: 22px;
    transition: border-color .2s
}

.hvac-ben-card:hover {
    border-color: rgba(45, 170, 255, .4)
}

.hvac-ben-ico {
    font-size: 28px;
    margin-bottom: 10px
}

.hvac-ben-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px
}

.hvac-ben-desc {
    font-size: 12px;
    color: var(--grey);
    line-height: 1.65
}

/* ── FOOTER ── */
.hvac-footer {
    padding: 42px 20px;
    text-align: center;
    border-top: 1px solid var(--steel-l);
    background: rgba(0, 0, 0, .35);
    z-index: 1;
    position: relative
}

.hvac-footer-logo {
    font-family: 'Big Shoulders Display', sans-serif;
    font-size: 27px;
    margin-bottom: 4px
}

.hvac-footer-logo span {
    color: var(--ice)
}

.hvac-footer-tag {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: 13px;
    color: var(--grey);
    margin-bottom: 20px
}

.hvac-footer-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--grey);
    letter-spacing: .8px;
    line-height: 2.1
}

/* ── ANIMATIONS ── */
@keyframes hvac-fu {
    from {
        opacity: 0;
        transform: translateY(14px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

@keyframes hvac-fi {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

.hvac-anim-up {
    animation: hvac-fu .65s ease both
}

.hvac-d1 {
    animation-delay: .1s
}

.hvac-d2 {
    animation-delay: .22s
}

.hvac-d3 {
    animation-delay: .34s
}

.hvac-d4 {
    animation-delay: .46s
}

/* ── STEP PANELS ── */
.hvac-sp {
    display: none
}

.hvac-sp.hvac-on {
    display: block;
    animation: hvac-fi .3s ease
}

/* ── LOADING OVERLAY ── */
.hvac-loading {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(4, 7, 15, .7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px
}

.hvac-loading.hvac-show {
    display: flex
}

.hvac-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--steel-l);
    border-top-color: var(--ice);
    border-radius: 50%;
    animation: hvac-spin .8s linear infinite
}

@keyframes hvac-spin {
    to {
        transform: rotate(360deg)
    }
}

.hvac-loading p {
    color: var(--grey-l);
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 1px
}