/* ─────────────────────────────────────────────────────────
   Neil R. Smith Consulting — editorial design system
   ───────────────────────────────────────────────────────── */

:root {
    --paper:    #f7f3ec;
    --paper-2:  #efe9de;
    --ink:      #1c1816;
    --ink-70:   rgba(28,24,22,0.72);
    --ink-55:   rgba(28,24,22,0.55);
    --ink-40:   rgba(28,24,22,0.40);
    --rule:     rgba(28,24,22,0.16);
    --rule-2:   rgba(28,24,22,0.28);
    --accent:   #7a2e1f;
}

/* Reset & base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--paper); color: var(--ink); }
body {
    font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
.serif { font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif; }
ul { list-style: none; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 36px; }

/* Masthead */
.masthead { border-bottom: 1px solid var(--ink); }
.masthead-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 22px 0 18px;
    gap: 32px;
}
.edition {
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-55);
}
.wordmark {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 600;
    font-size: 26px;
    letter-spacing: -0.005em;
    text-align: center;
}
.wordmark a { color: var(--ink); text-decoration: none; }
.nav-top {
    display: flex;
    gap: 26px;
    justify-content: flex-end;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.nav-top a { color: var(--ink); text-decoration: none; padding-bottom: 2px; }
.nav-top a.active { border-bottom: 1px solid var(--accent); color: var(--accent); }
.nav-top a:hover { color: var(--accent); }
.rule-double { border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); height: 5px; }

/* Eyebrow (section / page label) */
.eyebrow {
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 360px;
}
.eyebrow::after { content: ""; flex: 1; height: 1px; background: var(--rule-2); }

/* Hero (home) */
.hero {
    padding: 96px 0 88px;
    border-bottom: 1px solid var(--ink);
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 80px;
    align-items: start;
}
.hero h1 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: clamp(48px, 6vw, 84px);
    line-height: 0.98;
    letter-spacing: -0.025em;
    margin-bottom: 40px;
    max-width: 12ch;
}
.hero h1 .dot { color: var(--accent); font-weight: 600; }
.lead {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 22px;
    line-height: 1.45;
    max-width: 56ch;
    margin-bottom: 24px;
    color: var(--ink);
}
.standfirst {
    font-size: 17px;
    line-height: 1.55;
    max-width: 64ch;
    color: var(--ink-70);
    margin-bottom: 44px;
    padding-top: 24px;
    border-top: 1px solid var(--rule);
}

/* Portrait (shared: home hero, about page-header) */
.portrait { padding-top: 44px; }
.portrait img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    filter: grayscale(100%) contrast(1.02);
    margin-bottom: 14px;
}
.portrait-caption {
    font-family: 'Source Serif 4', Georgia, serif;
    font-style: italic;
    font-size: 14px;
    color: var(--ink-55);
    line-height: 1.4;
}

/* Buttons & links (shared) */
.cta-row {
    display: flex;
    gap: 28px;
    align-items: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-decoration: none;
    border: 1px solid var(--ink);
    color: var(--ink);
    background: transparent;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.accent { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.btn.accent:hover { background: var(--ink); border-color: var(--ink); }
.btn.dark { background: var(--ink); color: var(--paper); }
.btn.dark:hover { background: var(--accent); border-color: var(--accent); }
.link {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
    padding-bottom: 2px;
}
.link:hover { color: var(--ink); border-color: var(--ink); }

/* Section heads (shared) */
.section-head {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 64px;
    align-items: end;
    margin-bottom: 56px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--ink);
}
.section-eyebrow {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-55);
    font-weight: 600;
    padding-top: 8px;
}
.section-head h2 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: clamp(32px, 3.6vw, 46px);
    letter-spacing: -0.015em;
    line-height: 1.05;
    max-width: 22ch;
}
.section-head h2 em { font-style: italic; color: var(--ink-70); font-weight: 400; }
.section-intro {
    margin-top: 18px;
    font-size: 17px;
    color: var(--ink-70);
    max-width: 60ch;
}

/* Engagements (home) */
.engagements {
    padding: 88px 0 104px;
    border-bottom: 1px solid var(--ink);
}
.articles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}
.article {
    padding: 0 32px;
    border-right: 1px solid var(--rule);
    display: flex;
    flex-direction: column;
}
.article:first-child { padding-left: 0; }
.article:last-child { padding-right: 0; border-right: none; }
.art-eyebrow {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-55);
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    gap: 10px;
    align-items: baseline;
}
.art-eyebrow .num { color: var(--accent); font-weight: 700; }
.article h3 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: 26px;
    line-height: 1.12;
    letter-spacing: -0.012em;
    margin-bottom: 18px;
}
.article ul { margin: 0; }
.article li {
    padding: 14px 0;
    border-bottom: 1px solid var(--rule);
    font-size: 15px;
    line-height: 1.5;
    color: var(--ink-70);
}
.article li:last-child { border-bottom: none; }
.article li strong {
    font-family: 'Source Serif 4', Georgia, serif;
    color: var(--ink);
    font-weight: 600;
    letter-spacing: -0.005em;
    font-style: italic;
    margin-right: 4px;
}
.section-note {
    margin-top: 56px;
    max-width: 70ch;
    font-size: 15px;
    color: var(--ink-55);
    font-style: italic;
    font-family: 'Source Serif 4', Georgia, serif;
    padding-top: 22px;
    border-top: 1px solid var(--rule);
}

/* Footprint diagram (home) */
.footprint {
    padding: 88px 0 96px;
    border-bottom: 1px solid var(--ink);
}
.map-wrap {
    margin-top: 32px;
    padding: 32px 0 16px;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}
.map-svg {
    width: 100%;
    height: auto;
    display: block;
    max-width: 1100px;
    margin: 0 auto;
}

/* Closer (home) */
.closer {
    padding: 96px 0;
    text-align: center;
    border-bottom: 1px solid var(--ink);
}
.closer h2 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: clamp(34px, 4vw, 52px);
    letter-spacing: -0.015em;
    line-height: 1.05;
    margin-bottom: 22px;
    max-width: 22ch;
    margin-inline: auto;
}
.closer p {
    max-width: 56ch;
    margin: 0 auto 36px;
    color: var(--ink-70);
    font-size: 18px;
    font-family: 'Source Serif 4', Georgia, serif;
}

/* Page header (about, contact, thank-you) */
.page-header {
    padding: 80px 0 56px;
    border-bottom: 1px solid var(--ink);
}
.page-header.with-portrait { padding-bottom: 72px; }
.page-title {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: clamp(40px, 5vw, 72px);
    line-height: 1.02;
    letter-spacing: -0.022em;
    margin-bottom: 36px;
    max-width: 22ch;
}
.page-title em { font-style: italic; color: var(--ink-70); font-weight: 400; }
.page-standfirst {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 22px;
    line-height: 1.45;
    max-width: 58ch;
    color: var(--ink);
}

/* Body section (about) */
.body-section {
    padding: 72px 0;
    border-bottom: 1px solid var(--ink);
}
.body-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 80px;
    align-items: start;
}
.prose p {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 19px;
    line-height: 1.6;
    margin-bottom: 26px;
    max-width: 60ch;
}
.prose p:last-child { margin-bottom: 0; }
.prose h3 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 40px 0 18px;
}

/* Sidebar (about) */
.sidebar {
    border-top: 2px solid var(--ink);
    padding-top: 18px;
}
.sidebar h4 {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-55);
    font-weight: 600;
    margin-bottom: 20px;
}
.sidebar li {
    padding: 16px 0;
    border-bottom: 1px solid var(--rule);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: baseline;
}
.sidebar li:last-child { border-bottom: none; }
.sidebar .org {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 600;
    font-size: 17px;
    letter-spacing: -0.005em;
}
.sidebar .role {
    font-size: 12px;
    color: var(--ink-55);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: right;
}
.sidebar-card {
    margin-top: 40px;
    padding: 22px 24px;
    background: var(--paper-2);
    border-left: 2px solid var(--accent);
}
.sidebar-card h4 { margin-bottom: 10px; }
.sidebar-card p {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 16px;
    margin-bottom: 14px;
    color: var(--ink);
}
.sidebar-card a {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
    padding-bottom: 2px;
    letter-spacing: 0.02em;
}

/* CTA strip (about) */
.cta-strip {
    padding: 64px 0;
    border-bottom: 1px solid var(--ink);
    text-align: center;
}
.cta-strip-inner {
    display: flex;
    gap: 22px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

/* Form (contact) */
form { display: flex; flex-direction: column; gap: 28px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-55);
    font-weight: 600;
}
.field label .optional {
    text-transform: none;
    letter-spacing: 0;
    color: var(--ink-40);
    font-weight: 400;
}
.field input, .field textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--ink);
    padding: 10px 0;
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 19px;
    color: var(--ink);
    resize: vertical;
}
.field input:focus, .field textarea:focus {
    outline: none;
    border-bottom-color: var(--accent);
}
.field textarea { min-height: 140px; }
.submit-row {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 8px;
    flex-wrap: wrap;
}
.fine-print {
    font-size: 13px;
    color: var(--ink-55);
    font-style: italic;
    font-family: 'Source Serif 4', Georgia, serif;
}

/* Contact card (contact) */
.contact-card {
    border-top: 2px solid var(--ink);
    padding-top: 28px;
}
.contact-card h3 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: 28px;
    margin-bottom: 18px;
    letter-spacing: -0.012em;
}
.contact-card p {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 17px;
    color: var(--ink-70);
    margin-bottom: 28px;
}
.contact-list li {
    padding: 18px 0;
    border-top: 1px solid var(--rule);
}
.contact-list li:first-child { border-top: none; padding-top: 0; }
.contact-list .k {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-55);
    font-weight: 600;
    margin-bottom: 6px;
}
.contact-list .v {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 19px;
}
.contact-list a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--accent); padding-bottom: 1px; }
.contact-list a:hover { color: var(--accent); }
.confidential {
    margin-top: 36px;
    padding: 20px 22px;
    background: var(--paper-2);
    border-left: 2px solid var(--accent);
    font-family: 'Source Serif 4', Georgia, serif;
    font-style: italic;
    font-size: 15px;
    color: var(--ink);
}

/* Confirmation (thank-you) */
.confirmation {
    padding: 140px 0 160px;
    text-align: center;
    border-bottom: 1px solid var(--ink);
}
.confirmation .mark {
    width: 56px;
    height: 56px;
    margin: 0 auto 32px;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 28px;
    line-height: 1;
}
.confirmation h1 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 500;
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1.02;
    letter-spacing: -0.022em;
    margin-bottom: 24px;
}
.confirmation p {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 20px;
    color: var(--ink-70);
    max-width: 52ch;
    margin: 0 auto 40px;
}

/* Footer */
footer {
    padding: 40px 0 32px;
    font-size: 13px;
    color: var(--ink-55);
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
footer a { color: var(--ink); text-decoration: none; }
footer a:hover { color: var(--accent); }
footer nav { display: flex; gap: 20px; }

/* Responsive */
@media (max-width: 900px) {
    .container { padding: 0 24px; }
    .masthead-inner { grid-template-columns: 1fr; gap: 14px; text-align: center; }
    .edition, .nav-top { justify-content: center; display: flex; flex-wrap: wrap; gap: 18px; }
    .hero { padding: 64px 0 56px; }
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .portrait { padding-top: 0; max-width: 320px; }
    .section-head { grid-template-columns: 1fr; gap: 14px; }
    .articles { grid-template-columns: 1fr; }
    .article { padding: 24px 0; border-right: none; border-bottom: 1px solid var(--rule); }
    .article:last-child { border-bottom: none; }
    .article:first-child { padding-top: 0; }
    .body-grid { grid-template-columns: 1fr; gap: 56px; }
    .closer { padding: 64px 0; }
    .confirmation { padding: 80px 0 100px; }
    footer { flex-direction: column; align-items: center; text-align: center; }
}