/*
 * theme-trade — utilitarian grid, photo-driven, no-nonsense.
 * Targets AGRICULTURE, AUTOMOTIVE, CONSTRUCTION, ENERGY, ENGINEERING,
 * MANUFACTURING, POSTAL, TRANSPORTATION.
 *
 * Visual differentiators vs theme-modern / theme-formal / theme-bold:
 *   - Heavy borders, blocky composition, condensed display type.
 *   - Hero is split 60/40 with a "spec strip" stat row across the bottom.
 *   - Services render as a numbered spec-card grid (left rule, tabular feel).
 *   - Industries surface as a capabilities matrix (checkmarks + photo).
 *   - CTAs prominently feature phone (trades convert on calls, not forms).
 *   - Buttons are uppercase, hard-edged, bold.
 */

:root {
    --color-text: #0d1117;
    --color-text-muted: #3a4452;
    --color-bg: #ffffff;
    --color-bg-alt: #f0f3f6;
    --color-border: #cfd6de;
    --color-brand: #1b232d;
    --color-accent: #dc2626;
    --color-accent-hover: #b91c1c;
    --font-display: ui-sans-serif, system-ui, sans-serif;
    --font-body: ui-sans-serif, system-ui, sans-serif;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 4px;
    --section-y: 3.5rem;
    --container-max: 66rem;
}

*, *::before, *::after { box-sizing: border-box; }
body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.55;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--color-brand);
    margin-top: 0;
    line-height: 1.1;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.005em;
}
h1 { font-size: clamp(2.25rem, 4vw + 1rem, 3.5rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.75rem, 2vw + 1rem, 2.5rem); margin-bottom: 0.75rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; letter-spacing: 0.015em; }
h4 { font-size: 1rem; margin-bottom: 0.375rem; letter-spacing: 0.025em; }
p { margin: 0 0 1rem; }
a { color: var(--color-accent); text-decoration: none; transition: color 120ms ease; }
a:hover, a:focus { color: var(--color-accent-hover); text-decoration: underline; }

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--color-brand); color: #fff; padding: 0.5rem 1rem; }

/* ---------- Header ---------- */
.site-header { background: var(--color-bg); border-bottom: 2px solid var(--color-brand); }
.site-header__inner {
    max-width: var(--container-max); margin: 0 auto; padding: 1rem 1.5rem;
    display: flex; align-items: center; justify-content: space-between;
    gap: 1.5rem; flex-wrap: wrap;
}
.site-header__brand {
    font-family: var(--font-display);
    font-weight: 700; font-size: 1.375rem;
    color: var(--color-brand); text-decoration: none;
    text-transform: uppercase; letter-spacing: 0.025em;
}
.site-header__brand:hover, .site-header__brand:focus { color: var(--color-brand); text-decoration: none; }
.site-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-nav__link {
    color: var(--color-text); text-decoration: none;
    font-weight: 600; padding: 0.25rem 0;
    text-transform: uppercase; font-size: 0.875rem; letter-spacing: 0.04em;
}
.site-nav__link:hover, .site-nav__link:focus { color: var(--color-accent); text-decoration: none; }
.site-nav__link.is-active { color: var(--color-accent); border-bottom: 2px solid var(--color-accent); }

/* ---------- Sections ---------- */
.site-main { min-height: calc(100vh - 18rem); }
.section { padding: var(--section-y) 0; }
.section--alt { background: var(--color-bg-alt); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section__header {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 1.5rem; flex-wrap: wrap;
    border-bottom: 2px solid var(--color-brand);
    padding-bottom: 1rem; margin-bottom: 2.5rem;
}
.section__header h2 { margin: 0; }
.section__header p { color: var(--color-text-muted); margin: 0; max-width: 28rem; }
.section__eyebrow {
    text-transform: uppercase; letter-spacing: 0.12em;
    font-size: 0.75rem; font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

/* ---------- Hero ---------- */
.hero { background: var(--color-bg); border-bottom: 1px solid var(--color-border); }
.hero__inner {
    max-width: var(--container-max); margin: 0 auto;
    padding: 3.5rem 1.5rem 0;
    display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center;
}
@media (min-width: 56rem) {
    .hero__inner { grid-template-columns: 6fr 4fr; padding: 4rem 1.5rem 0; }
}
.hero__content { max-width: 36rem; }
.hero__title { color: var(--color-brand); }
.hero__lede { font-size: 1.125rem; color: var(--color-text-muted); max-width: 32rem; }
.hero__cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.5rem; }
.hero__visual {
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border));
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.hero__visual img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Spec strip (stat row under hero) */
.spec-strip {
    background: var(--color-brand); color: #fff;
    margin-top: 3rem;
}
.spec-strip__inner {
    max-width: var(--container-max); margin: 0 auto; padding: 1.5rem 1.5rem;
    display: grid; grid-template-columns: 1fr; gap: 1.5rem;
}
@media (min-width: 40rem) { .spec-strip__inner { grid-template-columns: repeat(3, 1fr); gap: 2rem; } }
.spec-strip__item { padding: 0 0.5rem; border-left: 3px solid var(--color-accent); }
.spec-strip__value {
    font-family: var(--font-display);
    font-size: 1.5rem; font-weight: 700; line-height: 1.1;
    color: #fff; text-transform: uppercase; letter-spacing: 0.02em;
}
.spec-strip__label {
    font-size: 0.8125rem; color: rgba(255,255,255,0.75);
    text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.25rem;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.875rem 1.5rem; border-radius: var(--radius-sm);
    font-family: var(--font-display); font-weight: 700; font-size: 0.9375rem;
    border: 2px solid transparent; cursor: pointer; text-decoration: none;
    transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease;
    text-transform: uppercase; letter-spacing: 0.06em;
}
.btn:hover, .btn:focus { text-decoration: none; }
.btn--primary { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn--primary:hover, .btn--primary:focus { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: #fff; }
.btn--secondary { background: transparent; color: var(--color-brand); border-color: var(--color-brand); }
.btn--secondary:hover, .btn--secondary:focus { background: var(--color-brand); color: #fff; }

/* On dark sections (CTA, footer) the secondary button needs a light variant */
.cta-block .btn--secondary, .site-footer .btn--secondary { color: #fff; border-color: rgba(255,255,255,0.6); }
.cta-block .btn--secondary:hover, .site-footer .btn--secondary:hover { background: #fff; color: var(--color-brand); border-color: #fff; }

/* ---------- Spec card grid (Services) ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.5rem; }
.spec-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem 1.5rem;
}
.spec-card__num {
    font-family: var(--font-display);
    font-size: 0.75rem; font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase; letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
}
.spec-card__title { margin: 0 0 0.5rem; font-size: 1.25rem; }
.spec-card__text { color: var(--color-text-muted); margin: 0; font-size: 0.9375rem; }

/* ---------- Capabilities (Industries) ---------- */
.capabilities { display: grid; grid-template-columns: 1fr; gap: 0; border: 1px solid var(--color-border); }
@media (min-width: 56rem) { .capabilities { grid-template-columns: 1fr 1fr; } }
.capabilities__photo {
    min-height: 16rem; aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, var(--color-bg-alt), var(--color-border));
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}
.capabilities__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (min-width: 56rem) { .capabilities__photo { border-bottom: 0; border-right: 1px solid var(--color-border); } }
.capabilities__list { padding: 0; margin: 0; list-style: none; }
.capabilities__item {
    display: grid; grid-template-columns: auto 1fr; gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    align-items: start;
}
.capabilities__item:last-child { border-bottom: 0; }
.capabilities__check {
    width: 1.5rem; height: 1.5rem; border-radius: 50%;
    background: var(--color-accent); color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.875rem; flex-shrink: 0;
    margin-top: 0.125rem;
}
.capabilities__name {
    font-family: var(--font-display); font-weight: 700;
    color: var(--color-brand); text-transform: uppercase;
    letter-spacing: 0.02em; font-size: 1rem;
    margin: 0 0 0.25rem;
}
.capabilities__desc { color: var(--color-text-muted); margin: 0; font-size: 0.9375rem; }

/* ---------- FAQ (bordered list) ---------- */
.faq-list {
    max-width: 50rem; margin: 0 auto;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.faq-item { border-top: 1px solid var(--color-border); }
.faq-item:first-child { border-top: 0; }
.faq-item__summary {
    list-style: none; cursor: pointer;
    padding: 1.25rem 1rem 1.25rem 0;
    display: flex; justify-content: space-between; gap: 1rem;
    font-family: var(--font-display); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.02em;
    color: var(--color-brand);
}
.faq-item__summary::-webkit-details-marker { display: none; }
.faq-item__summary::after {
    content: '+'; color: var(--color-accent);
    font-weight: 700; font-size: 1.5rem; line-height: 1;
}
.faq-item[open] > .faq-item__summary::after { content: '–'; }
.faq-item__answer { padding: 0 0 1.5rem; color: var(--color-text-muted); }

/* ---------- Prose (About, Resources copy) ---------- */
.prose { max-width: 44rem; margin: 0 auto; }
.prose h2 { margin-top: 2.5rem; }
.prose p { color: var(--color-text); }
.prose ul, .prose ol { padding-left: 1.5rem; color: var(--color-text); }
.prose li { margin-bottom: 0.5rem; }
.prose__meta {
    color: var(--color-accent); font-weight: 700; font-size: 0.75rem;
    text-transform: uppercase; letter-spacing: 0.15em;
    margin-bottom: 1rem;
    padding-bottom: 1rem; border-bottom: 2px solid var(--color-brand);
}

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 0; border: 1px solid var(--color-border); }
@media (min-width: 56rem) { .contact-grid { grid-template-columns: 5fr 7fr; } }
.contact-info { padding: 2rem 2rem; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); }
@media (min-width: 56rem) { .contact-info { border-bottom: 0; border-right: 1px solid var(--color-border); } }
.contact-info h3 { margin-top: 0; }
.contact-info dt {
    font-family: var(--font-display); font-weight: 700;
    color: var(--color-brand); margin-top: 1rem;
    text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.875rem;
}
.contact-info dd { margin: 0.25rem 0 0; color: var(--color-text); }
.contact-info dd a { color: var(--color-accent); }

.contact-form { padding: 2rem 2rem; background: var(--color-bg); }
.contact-form__row { margin-bottom: 1.25rem; }
.contact-form label {
    display: block; font-weight: 700; margin-bottom: 0.375rem;
    font-family: var(--font-display); font-size: 0.875rem;
    text-transform: uppercase; letter-spacing: 0.04em;
}
.contact-form input[type="text"], .contact-form input[type="email"], .contact-form input[type="tel"], .contact-form textarea {
    width: 100%; padding: 0.75rem 0.875rem;
    border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    background: var(--color-bg); font: inherit; color: var(--color-text);
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--color-accent); outline-offset: -2px; border-color: var(--color-accent); }
.contact-form textarea { resize: vertical; min-height: 7rem; }
.contact-form__consent { display: flex; gap: 0.625rem; align-items: flex-start; font-size: 0.875rem; color: var(--color-text-muted); }
.contact-form__consent input[type="checkbox"] { margin-top: 0.25rem; }
.contact-form__notice {
    background: var(--color-bg-alt);
    padding: 0.75rem 1rem; font-size: 0.8125rem;
    color: var(--color-text-muted); margin-bottom: 1.25rem;
    border-left: 3px solid var(--color-accent);
}

/* ---------- CTA block (used on home/services/industries footers) ---------- */
.cta-block {
    background: var(--color-brand); color: #fff;
    padding: 3rem 2rem; text-align: center;
    border-top: 4px solid var(--color-accent);
}
.cta-block h2 { color: #fff; margin-top: 0; }
.cta-block p { color: rgba(255,255,255,0.85); max-width: 38rem; margin: 0 auto 1.5rem; }
.cta-block .btn--primary { background: #fff; color: var(--color-brand); border-color: #fff; }
.cta-block .btn--primary:hover, .cta-block .btn--primary:focus { background: rgba(255,255,255,0.85); border-color: rgba(255,255,255,0.85); color: var(--color-brand); }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-brand); color: rgba(255,255,255,0.85);
    padding: 3rem 0 1.25rem;
    margin-top: var(--section-y);
    border-top: 4px solid var(--color-accent);
}
.site-footer__inner {
    display: grid; grid-template-columns: 1fr; gap: 2rem;
    max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem;
}
@media (min-width: 48rem) { .site-footer__inner { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer__brand {
    font-family: var(--font-display); font-weight: 700;
    color: #fff; margin-bottom: 0.5rem;
    text-transform: uppercase; letter-spacing: 0.025em; font-size: 1.125rem;
}
.site-footer__heading {
    font-family: var(--font-display); font-weight: 700;
    color: #fff; margin-bottom: 0.75rem;
    text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.875rem;
}
.site-footer__address { color: rgba(255,255,255,0.75); font-size: 0.9375rem; margin: 0; }
.site-footer__col p { margin: 0 0 0.25rem; }
.site-footer__col a { color: rgba(255,255,255,0.85); text-decoration: none; }
.site-footer__col a:hover { color: #fff; text-decoration: underline; }
.site-footer__legal {
    margin-top: 2.5rem; padding: 1.25rem 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 0.8125rem; color: rgba(255,255,255,0.6);
    display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
    max-width: var(--container-max); margin-left: auto; margin-right: auto;
}
.site-footer__legal p { margin: 0; }
.site-footer__attribution { font-size: 0.75rem; }
.site-footer__attribution a { color: rgba(255,255,255,0.7); text-decoration: underline; }