:root {
    --ink: #071421;
    --navy: #0b1724;
    --green: #31d28b;
    --green-dark: #128958;
    --muted: #64746f;
    --line: #dce8e2;
    --soft: #f2f7f4;
    --white: #ffffff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--soft);
    font-family: Arial, Helvetica, sans-serif;
}

a { color: inherit; }

.battery-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3;
}

.battery-nav {
    width: min(1180px, calc(100% - 32px));
    min-height: 82px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: #f2fbf7;
}

.battery-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    text-decoration: none;
}

.battery-brand-mark {
    width: 42px;
    height: 42px;
    border: 2px solid var(--green);
    border-radius: 13px;
    display: grid;
    place-items: center;
    color: var(--green);
}

.battery-brand span:last-child {
    display: grid;
}

.battery-brand small {
    color: #9eb0ad;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.battery-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.battery-nav-links a {
    padding: 10px 12px;
    border-radius: 7px;
    color: #d6e7e2;
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.battery-nav-links a:hover {
    background: rgba(255,255,255,.08);
    color: #fff;
}

.battery-nav-links .nav-cta {
    background: var(--green);
    color: #061511;
}

.battery-hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    align-items: center;
    overflow: hidden;
    color: #f2fbf7;
}

.battery-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(7,20,33,.96) 0%, rgba(7,20,33,.86) 42%, rgba(7,20,33,.50) 100%),
        linear-gradient(180deg, rgba(7,20,33,.22), rgba(7,20,33,.92)),
        url("battery-landing-home.png") center right / cover no-repeat;
}

.battery-hero-inner {
    position: relative;
    z-index: 2;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 120px 0 80px;
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(360px, .52fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
}

.kicker {
    margin: 0 0 16px;
    color: var(--green);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.battery-hero h1 {
    max-width: 820px;
    margin: 0;
    font-size: clamp(48px, 8vw, 98px);
    line-height: .9;
    letter-spacing: -1px;
}

.hero-copy {
    max-width: 690px;
    margin: 26px 0 0;
    color: #c9d8d4;
    font-size: 20px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.button,
button {
    min-height: 50px;
    border: 0;
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 18px;
    background: var(--green);
    color: #061511;
    font: inherit;
    font-weight: 900;
    text-decoration: none;
    cursor: pointer;
}

.button.secondary {
    border: 1px solid rgba(255,255,255,.18);
    background: rgba(255,255,255,.07);
    color: #fff;
}

.battery-proof {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 34px;
}

.battery-proof div {
    min-height: 86px;
    padding: 14px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 9px;
    background: rgba(255,255,255,.07);
}

.battery-proof strong,
.battery-proof span {
    display: block;
}

.battery-proof strong {
    font-size: 24px;
}

.battery-proof span {
    margin-top: 4px;
    color: #b9c9c5;
    font-size: 13px;
    line-height: 1.35;
}

.enquiry-card {
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 12px;
    padding: clamp(22px, 4vw, 30px);
    background: rgba(255,255,255,.96);
    color: var(--ink);
    box-shadow: 0 34px 110px rgba(0,0,0,.28);
}

.enquiry-card h2 {
    margin: 0 0 8px;
    font-size: 28px;
}

.enquiry-card p {
    margin: 0 0 18px;
    color: var(--muted);
    line-height: 1.5;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.form-row {
    display: grid;
    gap: 7px;
    margin-bottom: 13px;
}

.form-row.full {
    grid-column: 1 / -1;
}

label {
    color: #263b35;
    font-size: 13px;
    font-weight: 900;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid #cbdad4;
    border-radius: 8px;
    padding: 12px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 92px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 3px solid rgba(49, 210, 139, .18);
    border-color: var(--green-dark);
}

.check-row {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    margin: 12px 0 16px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
}

.check-row input {
    width: auto;
    margin-top: 2px;
}

.turnstile-row {
    min-height: 72px;
    margin: 4px 0 12px;
    display: flex;
    align-items: center;
}

.hp-field {
    position: absolute;
    left: -9999px;
}

.message {
    margin-bottom: 16px;
    padding: 13px 14px;
    border-radius: 8px;
    font-weight: 800;
}

.message.success {
    background: #e8fbf0;
    color: #0d653f;
}

.message.error {
    background: #fff1f0;
    color: #b42318;
}

.battery-section {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 76px 0;
}

.section-split {
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(360px, .62fr);
    gap: 56px;
    align-items: start;
}

.battery-section h2 {
    margin: 0;
    font-size: clamp(34px, 5vw, 64px);
    line-height: .96;
}

.battery-section p {
    color: #52645f;
    font-size: 18px;
    line-height: 1.65;
}

.info-list {
    display: grid;
    gap: 12px;
}

.info-list article {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 18px 44px rgba(7,20,33,.06);
}

.info-list h3 {
    margin: 0 0 8px;
}

.dark-band {
    background: var(--navy);
    color: #fff;
}

.dark-band .battery-section p {
    color: #c4d6d1;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 28px;
}

.steps article {
    min-height: 230px;
    padding: 22px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 10px;
    background: rgba(255,255,255,.06);
}

.steps span {
    color: var(--green);
    font-weight: 900;
    letter-spacing: 1.5px;
}

.site-footer {
    padding: 28px max(16px, calc((100vw - 1180px) / 2));
    display: flex;
    justify-content: space-between;
    gap: 20px;
    color: #52645f;
    background: #fff;
    border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
    .battery-nav {
        align-items: flex-start;
        flex-direction: column;
        padding-top: 18px;
    }

    .battery-nav-links {
        width: 100%;
        flex-wrap: wrap;
    }

    .battery-nav-links a {
        flex: 1 1 auto;
        text-align: center;
    }

    .battery-hero-inner,
    .section-split,
    .steps,
    .battery-proof,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .battery-hero-inner {
        padding-top: 160px;
    }

    .form-row.full {
        grid-column: auto;
    }

    .site-footer {
        flex-direction: column;
    }
}