:root {
    --ink: #14171c;
    --ink-soft: #2c313a;
    --paper: #f4efe6;
    --paper-2: #fffdf8;
    --line: #d8d0c4;
    --muted: #6e675e;
    --accent: #e3a21a;
    --accent-ink: #1a1406;
    --ok: #2d6a4f;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: Bahnschrift, "DIN Alternate", "Trebuchet MS", "Segoe UI", sans-serif;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.5;
}

.wrap {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 1.15rem;
}

.site-header {
    background: var(--ink);
    color: var(--paper);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 60px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--paper);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.logo__mark {
    width: 0.7rem;
    height: 1.15rem;
    background: var(--accent);
    clip-path: polygon(50% 0, 100% 38%, 62% 38%, 50% 100%, 0 62%, 38% 62%);
}

.nav a {
    margin-left: 1.1rem;
    color: #c9c2b6;
    text-decoration: none;
    font-size: 0.92rem;
}

.nav a:hover { color: var(--accent); }

.site-main { min-height: 60vh; }

.page-result .site-main,
.page-catalog .site-main { padding: 1.35rem 0 3.75rem; }

.kicker {
    margin: 0 0 0.65rem;
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
}

.kicker--light { color: #9a6d10; }

.hero-band {
    background:
        repeating-linear-gradient(
            -18deg,
            transparent,
            transparent 14px,
            rgba(255, 255, 255, 0.025) 14px,
            rgba(255, 255, 255, 0.025) 15px
        ),
        linear-gradient(165deg, #232830 0%, #14171c 58%, #101318 100%);
    color: var(--paper);
    padding: 2.8rem 0 3.1rem;
}

.hero-band h1 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.75rem, 4vw, 2.55rem);
    line-height: 1.15;
    font-weight: 600;
    letter-spacing: -0.02em;
    max-width: 18ch;
}

.hero-lead {
    margin: 0 0 1.35rem;
    color: #c9c2b6;
    max-width: 40rem;
    font-size: 1.05rem;
}

.hero-flow {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.15rem;
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0;
    font-size: 0.86rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #a39b90;
}

.hero-flow li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-flow li:not(:last-child)::after {
    content: "→";
    color: var(--accent);
    font-weight: 700;
}

.picker {
    display: grid;
    gap: 0.9rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(227, 162, 26, 0.28);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.picker__step { min-width: 0; }

.picker__num {
    display: block;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 0.15rem;
}

.picker label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.95rem;
}

.picker select {
    width: 100%;
    padding: 0.7rem 0.75rem;
    border: 1px solid #3d4450;
    border-radius: 2px;
    font-size: 1rem;
    font-family: inherit;
    background: #0f1216;
    color: var(--paper);
}

.picker select:focus {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.picker select:disabled {
    opacity: 0.45;
}

.btn {
    padding: 0.9rem 1.2rem;
    border: none;
    border-radius: 2px;
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: var(--accent-ink);
}

.btn-primary:hover:not(:disabled) { filter: brightness(1.06); }

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.home-catalog-link {
    margin: 1.15rem 0 0;
    color: #c9c2b6;
    font-size: 0.92rem;
    line-height: 1.55;
}

.home-catalog-link a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(227, 162, 26, 0.5);
}

.home-catalog-link a:hover { border-bottom-color: var(--accent); }

.home-seo {
    padding: 2.4rem 0 3.4rem;
}

.home-seo h2 {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
}

.home-seo > .wrap > p {
    margin: 0 0 1.35rem;
    color: var(--muted);
    max-width: 44rem;
}

.home-seo__grid {
    display: grid;
    gap: 1rem;
}

.home-seo__grid h3 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
}

.home-seo__grid p {
    margin: 0;
    color: var(--muted);
}

.page-result h1 {
    margin: 0 0 0.4rem;
    font-size: clamp(1.5rem, 3vw, 2.05rem);
    line-height: 1.2;
}

.result-head {
    margin-bottom: 1.15rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
}

.result-meta {
    margin: 0;
    color: var(--muted);
    font-size: 1.02rem;
    letter-spacing: 0.01em;
}

.car-compact {
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 0.9rem 1rem 1rem;
    margin-bottom: 1.15rem;
}

.car-compact__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.55rem;
}

.car-compact h2,
.fit-block h2,
.panel h2,
.recommendations h2 {
    margin: 0;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.link-change {
    flex-shrink: 0;
    color: var(--ink);
    font-size: 0.82rem;
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
}

.link-change:hover { color: #9a6d10; }

.car-compact__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.35rem 0.75rem;
    margin: 0;
}

.car-compact__grid dt {
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.car-compact__grid dd {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 600;
}

.fit-block {
    background: var(--ink);
    color: var(--paper);
    padding: 1.35rem 1.3rem 1.4rem;
    margin-bottom: 1.2rem;
    border-left: 4px solid var(--accent);
}

.fit-block h2 {
    color: var(--accent);
    margin-bottom: 0.85rem;
}

.fit-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem 1rem;
    margin: 0;
}

.fit-stats dt {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #a39b90;
    margin-bottom: 0.2rem;
}

.fit-stats dd {
    margin: 0;
    font-size: clamp(1.05rem, 2.2vw, 1.45rem);
    font-weight: 600;
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.fit-block__sub {
    margin: 0.9rem 0 0;
    color: #c9c2b6;
    font-size: 1rem;
}

.panel--spec {
    padding: 0.95rem 0 0.15rem;
    overflow: hidden;
}

.panel--spec h2 {
    padding: 0 1rem 0.65rem;
}

.req-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    margin: 0;
    border-top: 1px solid var(--line);
}

.req-grid div {
    min-width: 0;
    padding: 0.7rem 1rem 0.75rem;
    border-bottom: 1px solid var(--line);
    border-right: 1px solid var(--line);
    background: var(--paper-2);
}

.req-grid div:nth-child(3n) { border-right: none; }

.req-grid dt {
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.12rem;
}

.req-grid dd {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.55rem;
    margin: 0 0 1.1rem;
    font-size: 0.82rem;
    color: var(--muted);
}

.breadcrumbs a {
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
}

.breadcrumbs a:hover { color: #9a6d10; }

.breadcrumbs a:not(:last-child)::after,
.breadcrumbs span:not(:last-child)::after {
    content: "/";
    margin-left: 0.55rem;
    color: #b7aea2;
    border-bottom: none;
}

.catalog-head {
    margin-bottom: 1.35rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
}

.page-catalog h1 {
    margin: 0 0 0.55rem;
    font-size: clamp(1.5rem, 3vw, 2.05rem);
    line-height: 1.2;
}

.catalog-lead {
    margin: 0;
    color: var(--muted);
    max-width: 40rem;
}

.catalog-intro {
    color: var(--muted);
    max-width: 42rem;
}

.catalog-intro p {
    margin: 0 0 0.7rem;
}

.catalog-intro p:last-child { margin-bottom: 0; }

.catalog-h2 {
    margin: 0 0 0.85rem;
    font-size: 1.15rem;
    font-weight: 600;
}

.catalog-grid--models {
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
}

.catalog-grid--engines {
    grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
}

.catalog-engine {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 0.95rem 1.05rem 1rem;
    text-decoration: none;
    color: inherit;
}

.catalog-engine:hover {
    border-color: var(--accent);
}

.catalog-engine strong {
    font-size: 1.05rem;
    font-weight: 600;
}

.catalog-engine__meta {
    display: block;
    margin-top: 0.28rem;
    color: var(--muted);
    font-size: 0.88rem;
}

.catalog-engine__action {
    margin-top: 0.55rem;
    color: #9a6d10;
    font-size: 0.86rem;
    font-weight: 600;
    border-bottom: 1px solid var(--accent);
}

.catalog-engine:hover .catalog-engine__action {
    color: var(--ink);
}

.catalog-section-title {
    margin: 0 0 0.8rem;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 600;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
    gap: 0.7rem;
}

.catalog-card {
    display: block;
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 0.9rem 1rem;
    text-decoration: none;
    color: inherit;
}

.catalog-card:hover {
    border-color: var(--accent);
}

.catalog-card strong {
    display: block;
    font-size: 1.02rem;
    font-weight: 600;
}

.catalog-card span {
    display: block;
    margin-top: 0.28rem;
    color: var(--muted);
    font-size: 0.88rem;
}

.panel {
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 1.1rem 1.15rem 1.2rem;
    margin-bottom: 1.15rem;
}

.recommendations h2 {
    margin-bottom: 0.35rem;
}

.recommendations__lead {
    margin: 0 0 1rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.note {
    margin: 1rem 0.9rem;
    padding: 0.7rem 0.85rem;
    background: #f3e6c8;
    color: #6a4b12;
    font-size: 0.92rem;
}

.recommendations { margin-top: 1.6rem; }

.battery-list {
    display: grid;
    gap: 0.9rem;
}

.battery-card {
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 1.05rem 1.1rem 1.1rem;
}

.battery-card--best {
    border-color: var(--accent);
    background: #fff8ea;
    box-shadow: inset 4px 0 0 var(--accent);
}

.battery-card__top {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 0.7rem;
}

.battery-card h3 {
    margin: 0.25rem 0 0;
    font-size: 1.12rem;
    line-height: 1.25;
}

.badge-best,
.badge-rank {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.badge-best {
    background: var(--accent);
    color: var(--accent-ink);
    padding: 0.2rem 0.45rem;
}

.badge-rank { color: var(--muted); }

.score-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 4.4rem;
    text-align: center;
    background: var(--ink);
    color: var(--accent);
    padding: 0.45rem 0.55rem;
}

.score-pill__value {
    font-weight: 700;
    font-size: 1.15rem;
    line-height: 1.1;
}

.score-pill__label {
    margin-top: 0.12rem;
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #c9c2b6;
}

.batt-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.45rem 0.7rem;
    margin: 0;
}

.batt-specs dt {
    font-size: 0.65rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--muted);
}

.batt-specs dd {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.compat {
    margin-top: 0.75rem;
    padding-top: 0.65rem;
    border-top: 1px solid var(--line);
}

.compat__title {
    margin: 0 0 0.4rem;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 700;
}

.compat__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.55rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.compat__item {
    font-size: 0.82rem;
    color: var(--ok);
}

.compat__item::before {
    content: "✓ ";
    font-weight: 700;
}

.compat__item--warn {
    color: #9a6d10;
    flex-basis: 100%;
}

.compat__item--warn::before {
    content: "⚠ ";
}

.guide {
    margin-top: 2.1rem;
    padding-top: 1.6rem;
    border-top: 1px solid var(--line);
    max-width: 42rem;
}

.guide h2 {
    margin: 0 0 0.85rem;
    font-size: 1.2rem;
    line-height: 1.3;
    letter-spacing: 0;
    text-transform: none;
    font-weight: 600;
}

.guide h3 {
    margin: 1.25rem 0 0.5rem;
    font-size: 1.02rem;
    font-weight: 600;
}

.guide p {
    margin: 0 0 0.75rem;
    color: var(--ink-soft);
}

.guide ul {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--ink-soft);
}

.guide li + li { margin-top: 0.3rem; }

.faq {
    margin-top: 2rem;
    max-width: 42rem;
}

.faq h2 {
    margin: 0 0 0.85rem;
    font-size: 1.2rem;
    line-height: 1.3;
    letter-spacing: 0;
    text-transform: none;
    font-weight: 600;
}

.faq details {
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-bottom: none;
    padding: 0.7rem 0.9rem;
}

.faq details:last-child {
    border-bottom: 1px solid var(--line);
}

.faq summary {
    cursor: pointer;
    font-weight: 600;
    line-height: 1.35;
}

.faq summary:hover { color: #9a6d10; }

.faq details p {
    margin: 0.5rem 0 0.15rem;
    color: var(--ink-soft);
}

.site-footer {
    background: var(--ink);
    color: #9a9388;
    padding: 1.3rem 0;
    font-size: 0.82rem;
}

.site-footer p { margin: 0 0 0.4rem; }

@media (min-width: 720px) {
    .picker {
        grid-template-columns: 1fr 1fr;
        gap: 1rem 1.1rem;
        padding: 1.45rem;
    }

    .picker .btn-primary {
        grid-column: 1 / -1;
        margin-top: 0.25rem;
    }

    .home-seo__grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem 1.75rem;
    }
}

@media (max-width: 899px) {
    .fit-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 639px) {
    .hero-band { padding: 1.7rem 0 2rem; }

    .car-compact__head {
        flex-wrap: wrap;
    }

    .car-compact__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .req-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .req-grid div:nth-child(3n) { border-right: 1px solid var(--line); }

    .req-grid div:nth-child(2n) { border-right: none; }

    .battery-card__top { flex-direction: row; }

    .score-pill { align-self: flex-start; }

    .batt-specs {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq details {
        padding: 0.7rem 0.75rem;
    }

    .catalog-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}