@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,500;1,8..60,300;1,8..60,400&family=DM+Mono:wght@400;500&display=swap');

:root {
    --paper:      #f5f2eb;
    --paper-dark: #ffffff;
    --ink:        #1a1a18;
    --ink-mid:    #3d3d38;
    --ink-light:  #cecebc;
    --ink-faint:  #c4c2b8;
    --rule:       #f3f1eb;
    --accent:     #2e5440;   /* deep forest green — land/science */
    --accent-warm:#8b4e1a;   /* for secondary callouts */
    --white:      #ffffff;

    --serif:      'Playfair Display', Georgia, serif;
    --body:       'Source Serif 4', Georgia, serif;
    --mono:       'DM Mono', 'Courier New', monospace;

    --col:        680px;
    --col-wide:   1060px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--body);
    font-size: 17px;
    line-height: 1.75;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}

/* ── LAYOUT ───────────────────────────────── */
.container       { max-width: var(--col-wide); margin: 0 auto; padding: 0 40px; }
.container--narrow { max-width: var(--col); margin: 0 auto; padding: 0 40px; }

/* ── HEADER ───────────────────────────────── */
header {
    border-bottom: 1px solid var(--rule);
    background: var(--paper);
    position: sticky; top: 0; z-index: 50;
}
.header-top {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 40px;
    max-width: var(--col-wide); margin: 0 auto;
}
.logo {
    font-family: var(--serif); font-size: 1.1rem; font-weight: 700;
    color: var(--ink); text-decoration: none; letter-spacing: 0.01em;
}
.logo span { color: var(--accent); }
nav {
    display: flex; gap: 0; align-items: center;
}
nav a {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--ink-light); text-decoration: none;
    padding: 6px 18px; transition: color 0.15s;
    border-left: 1px solid var(--rule);
}
nav a:last-child { border-right: 1px solid var(--rule); }
nav a:hover, nav a.active { color: var(--ink); }
nav a.active { color: var(--accent); }

/* ── HERO ─────────────────────────────────── */
.hero {
    border-bottom: 2px solid var(--ink);
    padding: 72px 40px 56px;
    max-width: var(--col-wide); margin: 0 auto;
    display: grid; grid-template-columns: 1fr 340px; gap: 60px; align-items: end;
}
.hero-kicker {
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--accent);
    margin-bottom: 20px; display: block;
}
.hero-title {
    font-family: var(--serif); font-size: clamp(2.6rem, 4.5vw, 4rem);
    font-weight: 700; line-height: 1.1; color: var(--ink);
    letter-spacing: -0.01em;
}
.hero-title em { font-style: italic; color: var(--accent); }
.hero-sub {
    margin-top: 24px;
    font-size: 1.05rem; color: var(--ink-mid); line-height: 1.7;
    max-width: 520px;
}
.hero-cta { margin-top: 36px; display: flex; gap: 16px; align-items: center; }

/* right column */
.hero-meta {
    padding-bottom: 4px;
}
.hero-meta-item {
    padding: 16px 0;
    border-top: 1px solid var(--rule);
}
.hero-meta-item:last-child { border-bottom: 1px solid var(--rule); }
.meta-label {
    font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--ink-light); display: block;
    margin-bottom: 4px;
}
.meta-val {
    font-family: var(--body); font-size: 0.92rem; color: var(--ink-mid);
}

/* ── BUTTONS ──────────────────────────────── */
.btn {
    font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
    text-transform: uppercase; text-decoration: none; display: inline-block;
    padding: 11px 24px; border: 1.5px solid; transition: all 0.15s;
    cursor: pointer; background: none;
}
.btn-primary   { border-color: var(--ink); color: var(--ink); }
.btn-primary:hover { background: var(--ink); color: var(--paper); }
.btn-ghost     { border-color: var(--rule); color: var(--ink-mid); }
.btn-ghost:hover { border-color: var(--ink-mid); color: var(--ink); }
.btn-accent    { border-color: var(--accent); color: var(--accent); }
.btn-accent:hover { background: var(--accent); color: var(--paper); }

/* ── SECTION WRAPPERS ─────────────────────── */
.section { padding: 72px 40px; max-width: var(--col-wide); margin: 0 auto; }
.section + .section { border-top: 1px solid var(--rule); }

.section-label {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--ink-light);
    display: flex; align-items: center; gap: 12px; margin-bottom: 36px;
}
.section-label::after {
    content: ''; flex: 1; height: 1px; background: var(--rule);
}

h2.section-title {
    font-family: var(--serif); font-size: clamp(1.7rem, 2.5vw, 2.4rem);
    font-weight: 700; line-height: 1.2; color: var(--ink);
    letter-spacing: -0.01em; margin-bottom: 12px;
}
.section-deck {
    font-size: 1rem; color: var(--ink-mid); max-width: 560px;
    line-height: 1.7; margin-bottom: 48px;
}

/* ── CAPABILITIES (3-col) ─────────────────── */
.cap-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--ink);
}
.cap-col {
    padding: 32px 28px 32px 0;
    border-right: 1px solid var(--rule);
}
.cap-col:first-child { padding-left: 0; }
.cap-col:last-child  { border-right: none; padding-right: 0; }
.cap-num {
    font-family: var(--mono); font-size: 0.65rem; color: var(--ink-faint);
    letter-spacing: 0.08em; display: block; margin-bottom: 20px;
}
.cap-col h3 {
    font-family: var(--serif); font-size: 1.15rem; font-weight: 600;
    color: var(--ink); margin-bottom: 12px; line-height: 1.3;
}
.cap-col p { font-size: 0.88rem; color: var(--ink-mid); line-height: 1.7; margin-bottom: 16px; }
.cap-stack {
    font-family: var(--mono); font-size: 0.62rem; color: var(--ink-light);
    letter-spacing: 0.04em; line-height: 1.8;
}

/* ── FEATURED PROJECTS ────────────────────── */
.projects-list { display: flex; flex-direction: column; }

.project-entry {
    display: grid; grid-template-columns: 80px 1fr 380px;
    gap: 0; border-top: 1px solid var(--rule);
    padding: 48px 0; text-decoration: none; color: inherit;
    transition: background 0.15s;
}
.project-entry:hover { background: var(--paper-dark); margin: 0 -40px; padding: 48px 40px; }
.project-entry:last-child { border-bottom: 1px solid var(--rule); }

.proj-index {
    font-family: var(--mono); font-size: 0.65rem; color: var(--ink-faint);
    padding-top: 4px; letter-spacing: 0.06em;
}
.proj-body { padding-right: 48px; }
.proj-tags {
    display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px;
}
.tag {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--ink-light);
    border: 1px solid var(--rule); padding: 3px 8px;
}
.tag-accent { border-color: var(--accent); color: var(--accent); }
.proj-title {
    font-family: var(--serif); font-size: 1.45rem; font-weight: 700;
    line-height: 1.25; color: var(--ink); margin-bottom: 12px;
}
.proj-title em { font-style: italic; }
.proj-desc {
    font-size: 0.9rem; color: var(--ink-mid); line-height: 1.7;
    max-width: 480px;
}
.proj-meta {
    display: flex; flex-direction: column; justify-content: flex-start;
    gap: 0; border-left: 1px solid var(--rule); padding-left: 36px;
}
.proj-stat { padding: 12px 0; border-bottom: 1px solid var(--rule); }
.proj-stat:first-child { padding-top: 0; }
.proj-stat:last-child  { border-bottom: none; }
.stat-n {
    font-family: var(--serif); font-size: 2rem; font-weight: 700;
    color: var(--ink); line-height: 1; display: block;
}
.stat-l {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.07em;
    color: var(--ink-light); text-transform: uppercase; margin-top: 4px;
    display: block;
}
.proj-arrow {
    font-family: var(--mono); font-size: 0.65rem; color: var(--accent);
    letter-spacing: 0.06em; margin-top: 20px;
}

/* ── DIFFERENTIATORS ──────────────────────── */
.diff-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--rule);
}
.diff-item {
    padding: 36px 32px;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}
.diff-n {
    font-family: var(--mono); font-size: 0.62rem; color: var(--ink-faint);
    letter-spacing: 0.1em; display: block; margin-bottom: 12px;
}
.diff-item h4 {
    font-family: var(--serif); font-size: 1.05rem; font-weight: 600;
    color: var(--ink); margin-bottom: 10px;
}
.diff-item p { font-size: 0.87rem; color: var(--ink-mid); line-height: 1.7; margin: 0; }

/* ── FOOTER CTA STRIP ─────────────────────── */
.cta-strip {
    border-top: 2px solid var(--ink);
    padding: 64px 40px;
    max-width: var(--col-wide); margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between; gap: 48px;
}
.cta-strip h2 {
    font-family: var(--serif); font-size: clamp(1.5rem, 2.5vw, 2.1rem);
    font-weight: 700; color: var(--ink); max-width: 520px; line-height: 1.25;
}
.cta-strip h2 em { font-style: italic; color: var(--accent); }

/* ── FOOTER ───────────────────────────────── */
footer {
    border-top: 1px solid var(--rule);
    background: var(--paper-dark);
}
.footer-inner {
    max-width: var(--col-wide); margin: 0 auto;
    padding: 28px 40px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
}
.footer-nav { display: flex; gap: 28px; }
.footer-nav a {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--ink-light); text-decoration: none;
    transition: color 0.15s;
}
.footer-nav a:hover { color: var(--ink); }
.footer-copy {
    font-family: var(--mono); font-size: 0.62rem;
    color: var(--ink-faint); letter-spacing: 0.05em;
}

/* ── PAGE HEADER (inner pages) ────────────── */
.page-masthead {
    border-bottom: 2px solid var(--ink);
    padding: 56px 40px 40px;
    max-width: var(--col-wide); margin: 0 auto;
}
.page-masthead .kicker {
    font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 16px;
}
.page-masthead h1 {
    font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 700; color: var(--ink); line-height: 1.15; letter-spacing: -0.01em;
}
.page-masthead p {
    margin-top: 16px; font-size: 1rem; color: var(--ink-mid);
    max-width: 580px; line-height: 1.7;
}

/* ── PROJECTS (inner page) ────────────────── */
.project-article {
    padding: 64px 40px;
    max-width: var(--col-wide); margin: 0 auto;
    border-bottom: 1px solid var(--rule);
}
.project-article:last-of-type { border-bottom: none; }

.article-header { margin-bottom: 48px; }
.article-header .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.article-title {
    font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700; line-height: 1.15; color: var(--ink); letter-spacing: -0.01em;
}
.article-title em { font-style: italic; }

.article-body {
    display: grid; grid-template-columns: 1fr 400px; gap: 60px; align-items: start;
}
.article-text {}
.article-aside {}

/* PSI blocks */
.psi { margin-bottom: 28px; }
.psi-label {
    font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em;
    text-transform: uppercase; display: block; margin-bottom: 8px;
    padding-bottom: 6px; border-bottom: 1px solid var(--rule);
}
.psi-label.problem { color: var(--accent-warm); border-color: var(--accent-warm); }
.psi-label.solution { color: var(--accent); border-color: var(--accent); }
.psi-label.impact { color: var(--ink-mid); }
.psi p { font-size: 0.92rem; color: var(--ink-mid); line-height: 1.75; margin: 0; }

/* Data card */
.data-card {
    background: var(--paper-dark); border: 1px solid var(--rule);
    padding: 28px; margin-bottom: 20px;
}
.data-card-title {
    font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--ink-light); display: block;
    margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--rule);
}
.data-figures { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.fig { padding: 14px 0; border-bottom: 1px solid var(--rule); }
.fig:nth-last-child(-n+2) { border-bottom: none; }
.fig-n {
    font-family: var(--serif); font-size: 1.9rem; font-weight: 700;
    color: var(--ink); display: block; line-height: 1;
}
.fig-l {
    font-family: var(--mono); font-size: 0.58rem; color: var(--ink-light);
    text-transform: uppercase; letter-spacing: 0.07em;
    display: block; margin-top: 4px;
}

/* image frame */
.img-frame {
    border: 1px solid var(--rule); overflow: hidden; margin-bottom: 12px;
}
.img-frame img { width: 100%; height: auto; display: block; }
.img-caption {
    font-family: var(--mono); font-size: 0.62rem; color: var(--ink-light);
    line-height: 1.5; padding: 10px 14px; background: var(--paper-dark);
    border-top: 1px solid var(--rule);
}

/* methodology steps */
.method-list { list-style: none; padding: 0; }
.method-list li {
    display: flex; gap: 16px; padding: 14px 0;
    border-bottom: 1px solid var(--rule); font-size: 0.87rem; color: var(--ink-mid);
    line-height: 1.6;
}
.method-list li:first-child { border-top: 1px solid var(--rule); }
.method-n {
    font-family: var(--mono); font-size: 0.62rem; color: var(--ink-faint);
    flex-shrink: 0; padding-top: 3px; letter-spacing: 0.06em;
}

/* tech stack */
.stack-line {
    font-family: var(--mono); font-size: 0.66rem; color: var(--ink-light);
    letter-spacing: 0.04em; display: flex; gap: 0; flex-wrap: wrap;
    margin-top: 24px; border-top: 1px solid var(--rule); padding-top: 16px;
}
.stack-line span { margin-right: 16px; }
.stack-label {
    font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--ink-faint); margin-right: 16px;
}

/* ── SERVICES PAGE ────────────────────────── */
.service-row {
    display: grid; grid-template-columns: 200px 1fr 1fr;
    gap: 0; border-top: 1px solid var(--rule); padding: 48px 0;
}
.service-num-col {
    font-family: var(--mono); font-size: 0.65rem; color: var(--ink-faint);
    letter-spacing: 0.08em; padding-top: 4px;
}
.service-desc h3 {
    font-family: var(--serif); font-size: 1.25rem; font-weight: 600;
    color: var(--ink); margin-bottom: 14px;
}
.service-desc p { font-size: 0.9rem; color: var(--ink-mid); line-height: 1.75; margin: 0; }
.service-detail { padding-left: 40px; border-left: 1px solid var(--rule); }
.service-detail ul { list-style: none; padding: 0; }
.service-detail li {
    font-family: var(--mono); font-size: 0.72rem; color: var(--ink-mid);
    padding: 8px 0; border-bottom: 1px solid var(--rule);
    letter-spacing: 0.02em;
}
.service-detail li:first-child { padding-top: 0; }
.service-detail li:last-child  { border-bottom: none; }

/* use cases */
.use-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--rule); border-left: 1px solid var(--rule);
    margin-top: 48px;
}
.use-cell {
    padding: 28px 24px;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}
.use-cell h4 {
    font-family: var(--serif); font-size: 0.98rem; font-weight: 600;
    color: var(--ink); margin-bottom: 8px;
}
.use-cell p { font-size: 0.83rem; color: var(--ink-mid); line-height: 1.65; margin: 0; }

/* ── ABOUT PAGE ───────────────────────────── */
.about-layout {
    display: grid; grid-template-columns: 260px 1fr;
    gap: 0; align-items: start;
    padding: 64px 40px; max-width: var(--col-wide); margin: 0 auto;
}
.about-sidebar { padding-right: 48px; border-right: 1px solid var(--rule); position: sticky; top: 80px; }
.headshot {
    width: 100%; aspect-ratio: 4/5; background: var(--paper-dark);
    border: 1px solid var(--rule); margin-bottom: 24px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono); font-size: 0.65rem; color: var(--ink-faint);
    overflow: hidden;
}
.headshot img { width: 100%; height: 100%; object-fit: cover; }
.cred-list { list-style: none; padding: 0; }
.cred-list li {
    font-size: 0.82rem; color: var(--ink-mid);
    padding: 9px 0; border-bottom: 1px solid var(--rule);
    line-height: 1.4;
}
.cred-list li:first-child { border-top: 1px solid var(--rule); }
.cred-org {
    font-family: var(--mono); font-size: 0.58rem; color: var(--ink-faint);
    display: block; letter-spacing: 0.05em;
}
.about-main { padding-left: 56px; }
.about-main p {
    font-size: 0.97rem; color: var(--ink-mid); line-height: 1.8;
    margin-bottom: 20px; max-width: 580px;
}
.about-main h2 {
    font-family: var(--serif); font-size: 1.6rem; font-weight: 700;
    color: var(--ink); margin-bottom: 24px; margin-top: 48px;
    padding-top: 40px; border-top: 1px solid var(--rule);
}
.about-main h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }

/* contact form */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-family: var(--mono); font-size: 0.62rem;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light);
    margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 10px 14px;
    background: var(--white); border: 1px solid var(--rule);
    font-family: var(--body); font-size: 0.92rem; color: var(--ink);
    transition: border-color 0.15s; -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none; border-color: var(--ink);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; }
    .hero-meta { display: none; }
    .cap-grid { grid-template-columns: 1fr; border-top: none; }
    .cap-col { border-right: none; border-top: 1px solid var(--rule); padding: 28px 0; }
    .project-entry { grid-template-columns: 48px 1fr; }
    .proj-meta { display: none; }
    .diff-grid { grid-template-columns: 1fr; }
    .article-body { grid-template-columns: 1fr; }
    .service-row { grid-template-columns: 1fr; gap: 24px; }
    .service-detail { padding-left: 0; border-left: none; border-top: 1px solid var(--rule); padding-top: 24px; }
    .use-grid { grid-template-columns: 1fr 1fr; }
    .about-layout { grid-template-columns: 1fr; }
    .about-sidebar { position: static; padding-right: 0; border-right: none; border-bottom: 1px solid var(--rule); padding-bottom: 40px; margin-bottom: 40px; }
    .about-main { padding-left: 0; }
    .cta-strip { flex-direction: column; align-items: flex-start; }
    nav a { padding: 6px 12px; }
    .section, .project-article, .page-masthead, .hero, .cta-strip { padding-left: 20px; padding-right: 20px; }
    .about-layout { padding-left: 20px; padding-right: 20px; }
    .header-top { padding-left: 20px; padding-right: 20px; }
    .footer-inner { padding-left: 20px; padding-right: 20px; }
}
@media (max-width: 600px) {
    .use-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .data-figures { grid-template-columns: 1fr; }
    .hero-title { font-size: 2rem; }
}