/* ---------- tokens ---------- */
:root {
  --bg: #f6f3ee;
  --bg-tint: #efeae2;
  --surface: #fffdf9;
  --ink: #14202e;
  --ink-2: #4a5563;
  --line: #dfd8cc;
  --accent: #0e6b68;
  --accent-ink: #ffffff;
  --accent-soft: #dcebe8;
  --shadow: 0 1px 2px rgb(20 32 46 / 0.04), 0 8px 24px -12px rgb(20 32 46 / 0.12);
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --radius: 14px;
  --wrap: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11161d; --bg-tint: #161d26; --surface: #19212b; --ink: #ece7df; --ink-2: #a3acb8;
    --line: #2a3441; --accent: #5cc2b8; --accent-ink: #0b1a1a; --accent-soft: #173533;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #11161d; --bg-tint: #161d26; --surface: #19212b; --ink: #ece7df; --ink-2: #a3acb8;
  --line: #2a3441; --accent: #5cc2b8; --accent-ink: #0b1a1a; --accent-soft: #173533;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.5);
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--ink-2); }
.small { font-size: 0.9rem; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 16px; }
.ic { width: 18px; height: 18px; flex: none; }
.eyebrow { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.eyebrow a { text-decoration: none; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 46rem; }

/* ---------- buttons ---------- */
.btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font: 500 0.95rem/1 var(--sans); text-decoration: none; cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--ink); transform: translateY(-1px); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { border-color: var(--accent); filter: brightness(1.08); }
.btn-sm { padding: 9px 16px; font-size: 0.9rem; }
.more { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.95rem; color: var(--accent); text-decoration: none; }
.more .ic { transition: transform 0.15s ease; }
a:hover .more .ic, .more:hover .ic { transform: translateX(3px); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; white-space: nowrap; }
.brand-mark {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px;
  background: var(--ink); color: var(--bg); font: 600 0.95rem/1 var(--serif); letter-spacing: 0.02em;
}
.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.site-nav a { display: block; padding: 8px 12px; border-radius: 8px; text-decoration: none; font-size: 0.94rem; color: var(--ink-2); }
.site-nav a:hover { color: var(--ink); background: var(--bg-tint); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer;
}
.theme-toggle .ic:last-child { display: none; }
:root[data-theme="dark"] .theme-toggle .ic:first-child { display: none; }
:root[data-theme="dark"] .theme-toggle .ic:last-child { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .ic:first-child { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .ic:last-child { display: block; }
}
.menu-toggle { display: none; }
.menu-toggle span { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform 0.2s ease; }
.menu-toggle span + span { margin-top: -14px; }

@media (max-width: 1000px) {
  .brand-name { display: none; }
}
@media (max-width: 860px) {
  .menu-toggle { display: grid; gap: 5px; place-content: center; }
  .menu-toggle span + span { margin-top: 0; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
  .brand-name { display: inline; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; margin: 0; }
  .site-nav ul {
    display: none; flex-direction: column; padding: 12px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .site-nav ul.open { display: flex; }
  .site-nav a { padding: 12px; font-size: 1.05rem; }
  .header-actions { margin-left: auto; }
}
@media (max-width: 420px) {
  .brand-name { display: none; }
}

/* ---------- sections ---------- */
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section-tint { background: var(--bg-tint); }
.section-title { margin-bottom: 1.5rem; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 1.5rem; }
.section-head .section-title { margin: 0; }
.page-head { padding: clamp(56px, 9vw, 104px) 0 clamp(8px, 2vw, 24px); }
.page-head h1 { max-width: 20ch; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
}
.card p:last-child { margin-bottom: 0; }
.prose { max-width: 42rem; }
.prose h2 { font-size: 1.5rem; margin-top: 2rem; }
.prose h2:first-child { margin-top: 0; }

/* ---------- hero ---------- */
.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(40px, 6vw, 72px); }
.hero-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.display { font-size: clamp(2.4rem, 5.2vw, 4rem); line-height: 1.07; letter-spacing: -0.02em; }
.photo { width: 100%; aspect-ratio: 4 / 5; border-radius: 20px; object-fit: cover; border: 1px solid var(--line); }
.photo-placeholder {
  display: grid; place-items: center; position: relative; overflow: hidden;
  background:
    radial-gradient(120% 90% at 20% 10%, var(--accent-soft), transparent 60%),
    linear-gradient(160deg, var(--surface), var(--bg-tint));
}
.photo-placeholder span { font: 500 clamp(4rem, 10vw, 7rem)/1 var(--serif); color: var(--ink); opacity: 0.85; letter-spacing: 0.02em; }
.photo-placeholder::after {
  content: ""; position: absolute; inset: 14px; border: 1px solid var(--line); border-radius: 12px; pointer-events: none;
}
.hero-photo { max-width: 400px; justify-self: end; width: 100%; }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo { justify-self: start; max-width: 260px; order: -1; }
}

/* ---------- metrics ---------- */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.metric { padding: 28px 28px 8px 0; }
.metric + .metric { padding-left: 28px; border-left: 1px solid var(--line); }
.metric-company { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 0.75rem; }
.metric-value { font: 500 clamp(3rem, 6vw, 4.5rem)/1 var(--serif); color: var(--accent); margin-bottom: 0.4rem; letter-spacing: -0.02em; }
.metric-label { font-weight: 600; margin-bottom: 0.6rem; }
@media (max-width: 760px) {
  .metrics { grid-template-columns: 1fr; }
  .metric, .metric + .metric { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line); }
}

/* ---------- paths ---------- */
.paths { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.path {
  display: block; padding: clamp(28px, 4vw, 44px); border-radius: var(--radius); text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.path:hover { transform: translateY(-3px); border-color: var(--accent); }
.path h2 { margin-bottom: 0.3em; }
@media (max-width: 640px) { .paths { grid-template-columns: 1fr; } }

/* ---------- case studies ---------- */
.study-card { display: flex; flex-direction: column; text-decoration: none; transition: transform 0.2s ease, border-color 0.2s ease; }
.study-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.study-card h3 { margin-bottom: 0.4em; }
.study-meta { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 0.75rem; }
.study-metric { margin-top: auto; min-height: 4.4em; align-items: flex-start; padding-top: 16px; border-top: 1px solid var(--line); display: flex; align-items: baseline; gap: 8px; font-size: 0.9rem; color: var(--ink-2); }
.study-metric .num { font: 500 1.6rem/1 var(--serif); color: var(--accent); flex: none; }
.study-card .more { margin-top: 16px; }
.study-grid { display: grid; grid-template-columns: 280px 1fr; gap: clamp(28px, 5vw, 64px); align-items: start; }
.study-aside { position: sticky; top: 92px; }
.facts { margin: 20px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.facts dt { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-2); }
.facts dd { margin: 2px 0 0; font-weight: 600; }
.takeaways { margin-top: 2rem; padding: 24px; border-radius: var(--radius); background: var(--accent-soft); }
.study-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: clamp(48px, 7vw, 80px); padding-top: 24px; background: linear-gradient(var(--line), var(--line)) 24px 0 / calc(100% - 48px) 1px no-repeat; }
.study-nav .small { font-family: var(--sans); }
.study-nav a { display: flex; flex-direction: column; text-decoration: none; font: 500 1.15rem/1.3 var(--serif); max-width: 45%; }
.study-nav .next { text-align: right; margin-left: auto; }
@media (max-width: 860px) {
  .study-grid { grid-template-columns: 1fr; }
  .study-aside { position: static; }
}

/* ---------- timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; }
.tl-item { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 32px 0; border-top: 1px solid var(--line); }
.tl-item:first-child { border-top: 0; padding-top: 8px; }
.tl-when { font-weight: 600; color: var(--accent); font-size: 0.95rem; padding-top: 4px; }
.tl-company { color: var(--ink-2); font-weight: 500; margin-bottom: 0.9rem; }
.bullets { margin: 0; padding-left: 1.1rem; }
.bullets li { margin-bottom: 0.5rem; padding-left: 0.2rem; }
.bullets li::marker { color: var(--accent); }
@media (max-width: 760px) { .tl-item { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 300px 1fr; gap: clamp(32px, 6vw, 72px); align-items: start; }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; } .about-photo { max-width: 220px; } }

/* ---------- services ---------- */
.services-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.service-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.service-list li {
  display: flex; flex-direction: column; gap: 4px; padding: 20px 22px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line);
}
.service-name { font-weight: 600; }
@media (max-width: 860px) { .services-grid { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .service-list { grid-template-columns: 1fr; } }
.cta-band { background: var(--ink); color: var(--bg); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { margin: 0; }
.cta-inner .btns { margin: 0; }
.cta-band .btn:not(.btn-primary) { background: transparent; color: var(--bg); border-color: color-mix(in srgb, var(--bg) 35%, transparent); }
.cta-band .btn:not(.btn-primary):hover { border-color: var(--bg); }

/* ---------- credentials ---------- */
.cred-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.cred-grid .card { display: flex; flex-direction: column; gap: 6px; padding: 22px 24px; }
.cred-issuer { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.cred-name { font-weight: 600; line-height: 1.4; }
.award-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.award-list li { display: grid; grid-template-columns: 160px 1fr; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
@media (max-width: 560px) { .award-list li { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.contact-grid.no-form { grid-template-columns: minmax(0, 560px); }
.contact-ways { display: grid; gap: 14px; }
.contact-way { display: flex; align-items: center; gap: 16px; padding: 20px 22px; text-decoration: none; font-weight: 600; transition: border-color 0.2s ease; overflow-wrap: anywhere; }
.contact-way:hover { border-color: var(--accent); }
.contact-way .ic { width: 22px; height: 22px; color: var(--accent); }
.contact-way > span { display: flex; flex-direction: column; }
.contact-form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: 0.92rem; }
.field input, .field textarea {
  font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 14px; width: 100%;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.hp { position: absolute; left: -9999px; }
.contact-form .btn { justify-self: start; }
.form-status { margin: 0; min-height: 1.4em; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.footer-inner p { margin: 0; }
.footer-name { font: 500 1.15rem/1.2 var(--serif); }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; list-style: none; margin: 0; padding: 0; font-size: 0.95rem; }

/* ---------- motion ---------- */
.js .reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}