:root {
    --color-ink: #20262d;
    --color-muted: #5e6974;
    --color-page: #f4f6f5;
    --color-surface: #ffffff;
    --color-header: #20313f;
    --color-header-border: #344858;
    --color-accent: #2f6f73;
    --color-accent-soft: #e7f0ef;
    --color-warm: #b4772e;
    --color-border: #d8dee2;
    --color-focus: #d9902f;
    --shadow-card: 0 8px 20px rgba(32, 38, 45, 0.08);
    --space-page: clamp(20px, 4vw, 48px);
    --content-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: light;
}

body {
    margin: 0;
    background: var(--color-page);
    color: var(--color-ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}

a {
    color: inherit;
}

a:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: 12px;
    z-index: 20;
    padding: 8px 12px;
    background: var(--color-surface);
    border: 2px solid var(--color-focus);
    border-radius: 6px;
    transform: translateY(-140%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    background: var(--color-header);
    color: #ffffff;
    border-bottom: 4px solid var(--color-accent);
}

.site-header__inner {
    width: min(100%, var(--content-width));
    margin: 0 auto;
    padding: 18px var(--space-page);
}

.brand {
    display: inline-flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 16px;
    text-decoration: none;
}

.brand__name {
    font-size: 1.35rem;
    font-weight: 700;
}

.brand__tagline {
    color: #d7e1e5;
    font-size: 0.9rem;
}

.primary-nav__list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.primary-nav__link {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 11px;
    border: 1px solid transparent;
    border-radius: 6px;
    color: #f7fbfc;
    font-size: 0.94rem;
    text-decoration: none;
}

.primary-nav__link:hover,
.primary-nav__link.is-active {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--color-header-border);
}

.primary-nav__link.is-active {
    box-shadow: inset 0 -3px 0 var(--color-focus);
}

.page-shell {
    width: min(100%, var(--content-width));
    margin: 0 auto;
    padding: 34px var(--space-page) 56px;
}

.page-intro {
    max-width: 850px;
    margin-bottom: 32px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 12px;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.1;
}

h2 {
    margin-bottom: 8px;
    font-size: 1.35rem;
    line-height: 1.25;
}

h3 {
    margin-bottom: 8px;
    font-size: 1.08rem;
    line-height: 1.3;
}

.lead {
    color: var(--color-muted);
    font-size: 1.18rem;
}

.section-band,
.process-pack-group {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.section-band__heading,
.process-pack-group__heading {
    max-width: 760px;
    margin-bottom: 18px;
}

.process-pack-group {
    margin-top: 28px;
}

.process-pack-group__heading {
    padding-left: 14px;
    border-left: 5px solid var(--color-accent);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 16px;
}

.tool-card {
    display: flex;
    min-height: 178px;
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-card);
    text-decoration: none;
}

.tool-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.tool-card__badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    margin-bottom: 16px;
    padding: 4px 8px;
    background: var(--color-accent-soft);
    border: 1px solid #c8dddd;
    border-radius: 999px;
    color: #1d5154;
    font-size: 0.78rem;
    font-weight: 700;
}

.tool-card p {
    margin-bottom: 0;
    color: var(--color-muted);
}

.empty-state {
    max-width: 680px;
    padding: 24px;
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: 8px;
}

@media (min-width: 760px) {
    .site-header__inner {
        display: grid;
        grid-template-columns: 220px 1fr;
        gap: 24px;
        align-items: center;
    }

    .brand {
        margin-bottom: 0;
    }

    .primary-nav__list {
        justify-content: flex-end;
    }
}