/* =====================================================================
   Datastudy: editorial consultancy design system
   ===================================================================== */

:root {
  /* Palette: warm newsprint */
  --paper: #f5f4f0;
  --paper-2: #efede7;
  --ink: #14130f;
  --ink-soft: #44423b;
  --ink-mute: #75726a;
  --line: #d9d6cd;
  --line-soft: #e6e3da;
  --accent: #c8341f;
  --accent-ink: #9c2716;
  --highlight: #f4c542;
  --card: #ffffff;

  /* Type */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Rhythm */
  --maxw: 1240px;
  --gap: clamp(1rem, 2.4vw, 2rem);
  --radius: 4px;
  --shadow: 0 1px 2px rgba(20, 19, 15, 0.06), 0 8px 24px rgba(20, 19, 15, 0.05);

  /* Motion */
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-soft: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-1: 140ms;
  --dur-2: 240ms;
  --dur-3: 420ms;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.1; margin: 0; color: var(--ink); letter-spacing: -0.01em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::selection { background: var(--ink); color: var(--paper); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

main { display: block; }

/* Containers */
.wrap { width: min(100% - 2rem, var(--maxw)); margin-inline: auto; }
.section { padding-block: clamp(2.6rem, 6vw, 5rem); }
.section--tight { padding-block: clamp(2rem, 4vw, 3.2rem); }
.bg-2 { background: var(--paper-2); }

/* Masthead */
.masthead { background: var(--paper); border-bottom: 1px solid var(--ink); position: sticky; top: 0; z-index: 40; }
.masthead__bar {
  width: min(100% - 2rem, var(--maxw)); margin-inline: auto;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem;
  padding: 1rem 0 .85rem;
}
.masthead__tag { font-family: var(--mono); font-size: .72rem; color: var(--ink-mute); text-transform: uppercase; letter-spacing: .08em; }
.masthead__brand { text-align: center; }
.logo { font-family: var(--serif); font-weight: 900; font-size: clamp(1.8rem, 4.6vw, 2.8rem); letter-spacing: -0.02em; line-height: 1; display: inline-flex; align-items: baseline; gap: .1em; }
.logo__slashes { width: .78em; height: .78em; align-self: center; margin-right: .22em; fill: var(--ink); flex: none; }
.logo__word { color: var(--ink); }
.logo__mark { background: var(--ink); color: var(--paper); padding: 0 .14em; }
.logo--sm { font-size: 1.5rem; }
.masthead__actions { justify-self: end; display: flex; align-items: center; gap: .6rem; }

.btn {
  display: inline-flex; align-items: center; gap: .45rem; font-family: var(--sans); font-weight: 600; font-size: .92rem;
  padding: .6rem 1.1rem; border-radius: var(--radius); border: 1px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer;
  transition: transform var(--dur-2) var(--ease-spring), background var(--dur-2) var(--ease-soft),
    color var(--dur-2) var(--ease-soft), border-color var(--dur-2) var(--ease-soft), box-shadow var(--dur-2) var(--ease-soft);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(20, 19, 15, .14); }
.btn:active { transform: translateY(0) scale(0.97); transition-duration: var(--dur-1); }
.btn svg { width: 17px; height: 17px; }
.btn--solid { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }
.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }

.masthead__nav { border-top: 1px solid var(--line); }
.navlist { width: min(100% - 2rem, var(--maxw)); margin: 0 auto; list-style: none; display: flex; gap: 1.4rem; align-items: center; padding: .55rem 0; overflow-x: auto; scrollbar-width: none; }
.navlist::-webkit-scrollbar { display: none; }
.navlist a { font-family: var(--sans); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); white-space: nowrap; padding-bottom: 2px; border-bottom: 2px solid transparent; transition: color var(--dur-2) var(--ease-soft), border-color var(--dur-2) var(--ease-soft); }
.navlist a:hover, .navlist a[aria-current="page"] { color: var(--accent); border-color: var(--accent); }

/* Kicker */
.kicker { display: inline-block; font-family: var(--sans); font-weight: 700; font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; color: var(--paper); background: var(--ink); padding: .22rem .5rem; margin-bottom: .7rem; }
.kicker--accent { background: var(--accent); }

.eyebrow { display: inline-block; font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); margin-bottom: .7rem; }

/* Hero */
.hero { border-bottom: 3px solid var(--ink); padding-top: clamp(1.6rem, 4vw, 3rem); padding-bottom: clamp(1.8rem, 4vw, 3rem); }
.hero__grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: clamp(1.6rem, 4vw, 3.4rem); align-items: center; }
.hero__title { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 700; line-height: 1.02; letter-spacing: -0.02em; }
.hero__title .accent { color: var(--accent); font-style: italic; }
.hero__lede { font-family: var(--serif); font-size: clamp(1.15rem, 1.9vw, 1.4rem); line-height: 1.45; color: var(--ink-soft); margin: 1.2rem 0 1.6rem; max-width: 40ch; }
.hero__meta { font-family: var(--mono); font-size: .74rem; color: var(--ink-mute); text-transform: uppercase; letter-spacing: .06em; margin-top: 1.6rem; }

/* Stat panel (editorial "by the numbers") */
.statbox { border: 1px solid var(--ink); background: var(--card); box-shadow: var(--shadow); }
.statbox__head { background: var(--ink); color: var(--paper); font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; padding: .6rem .9rem; display: flex; align-items: center; justify-content: space-between; }
.statbox__pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--highlight); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { .statbox__pulse { animation: none; } }
.statbox__row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: .9rem .9rem; border-bottom: 1px solid var(--line-soft); }
.statbox__row:last-child { border-bottom: 0; }
.statbox__k { font-family: var(--sans); font-size: .9rem; color: var(--ink-soft); }
.statbox__v { font-family: var(--serif); font-weight: 700; font-size: 1.4rem; color: var(--ink); }
.statbox__v small { font-family: var(--mono); font-size: .7rem; color: var(--accent); margin-left: .35rem; }

/* Ticker */
.ticker { background: var(--ink); color: var(--paper); overflow: hidden; }
.ticker__inner { width: min(100% - 2rem, var(--maxw)); margin-inline: auto; display: flex; align-items: center; gap: 1rem; padding: .55rem 0; }
.ticker__label { flex: 0 0 auto; font-family: var(--sans); font-weight: 800; font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--highlight); }
.ticker__items { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: #cfccc3; }

/* Section head */
.section-head { border-bottom: 2px solid var(--ink); padding-bottom: .6rem; margin-bottom: 1.8rem; }
.section-head--center { text-align: center; }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 700; }
.section-head p { font-family: var(--serif); color: var(--ink-soft); font-size: 1.1rem; margin-top: .6rem; max-width: 60ch; }
.section-head--center p { margin-inline: auto; }

/* Grid + cards */
.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--card); border: 1px solid var(--line); padding: clamp(1.4rem, 2.4vw, 1.9rem); transition: border-color var(--dur-2) var(--ease-soft), transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2) var(--ease-soft); }
.card:hover { border-color: var(--ink); transform: translateY(-3px); box-shadow: var(--shadow); }
.card__num { font-family: var(--mono); font-size: .78rem; color: var(--accent); letter-spacing: .04em; }
.card h3 { font-size: 1.35rem; margin-top: .5rem; }
.card p { margin-top: .6rem; color: var(--ink-soft); }
.card__list { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .6rem; }
.card__list li { font-family: var(--sans); font-size: .96rem; color: var(--ink-soft); padding-left: 1.3rem; position: relative; }
.card__list li::before { content: ""; position: absolute; left: 0; top: .55em; width: .55rem; height: .55rem; background: var(--accent); }

/* Numbered feature (services detail) */
.feature { display: grid; grid-template-columns: auto 1fr; gap: clamp(1rem, 3vw, 2.4rem); padding-block: clamp(1.6rem, 3vw, 2.4rem); border-bottom: 1px solid var(--line); align-items: start; }
.feature:last-child { border-bottom: 0; }
.feature__index { font-family: var(--serif); font-weight: 900; font-size: clamp(2.4rem, 5vw, 3.6rem); color: var(--line); line-height: 1; }
.feature h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.feature p { margin-top: .6rem; color: var(--ink-soft); max-width: 60ch; font-family: var(--serif); font-size: 1.08rem; }
.feature__list { list-style: none; margin: 1rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.feature__list li { font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); padding: .3rem .6rem; }

/* Split */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.8rem, 4vw, 3.4rem); align-items: center; }
.checklist { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: 1rem; }
.checklist li { display: grid; grid-template-columns: auto 1fr; gap: .8rem; align-items: start; color: var(--ink-soft); }
.checklist li::before { content: ""; width: 1.4rem; height: 1.4rem; margin-top: .15rem; background-color: var(--ink); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f5f4f0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: center; background-size: 14px; }
.checklist strong { color: var(--ink); font-weight: 700; }

/* Steps */
.steps { border-top: 2px solid var(--ink); }
.step { display: grid; grid-template-columns: auto 1fr; gap: clamp(1rem, 3vw, 2.4rem); padding-block: clamp(1.4rem, 3vw, 2rem); border-bottom: 1px solid var(--line); align-items: baseline; }
.step__num { font-family: var(--mono); font-size: .8rem; color: var(--accent); letter-spacing: .06em; padding-top: .4rem; }
.step h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }
.step p { margin-top: .5rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.08rem; max-width: 60ch; }

/* Team */
.team-card { background: var(--card); border: 1px solid var(--line); padding: clamp(1.4rem, 2.4vw, 2rem); }
.team-card__head { display: flex; align-items: center; gap: 1.1rem; }
.team-card__photo { width: 84px; height: 84px; border-radius: 50%; object-fit: cover; border: 1px solid var(--ink); filter: grayscale(1); }
.team-card__role { font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--accent); margin-top: .3rem; }
.team-card p { margin-top: 1.1rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.05rem; }
.tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.1rem; list-style: none; padding: 0; }
.tag { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); padding: .3rem .6rem; }

/* Promo / CTA */
.promo { background: var(--ink); color: var(--paper); padding: clamp(2.2rem, 5vw, 3.6rem); text-align: center; }
.promo__inner { max-width: 46rem; margin-inline: auto; }
.promo__kicker { font-family: var(--mono); text-transform: uppercase; letter-spacing: .14em; font-size: .74rem; color: var(--highlight); margin: 0 0 .7rem; }
.promo h2 { color: var(--paper); font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
.promo p { color: #cfccc3; margin: .9rem auto 1.6rem; max-width: 42ch; font-family: var(--serif); font-size: 1.1rem; }
.promo .btn { border-color: var(--paper); color: var(--paper); }
.promo .btn:hover { background: var(--paper); color: var(--ink); }
.promo .btn--solid { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.promo .btn--solid:hover { background: var(--highlight); border-color: var(--highlight); color: var(--ink); }
.promo .btn-row { justify-content: center; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr .9fr; gap: clamp(1.8rem, 4vw, 3.4rem); align-items: start; }
.contact-list { border-top: 2px solid var(--ink); }
.contact-item { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding-block: 1.2rem; border-bottom: 1px solid var(--line); }
.contact-item__icon { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--ink); }
.contact-item__icon svg { width: 20px; height: 20px; stroke: var(--ink); }
.contact-item h3 { font-family: var(--sans); font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; }
.contact-item a, .contact-item p { color: var(--ink-soft); margin-top: .3rem; display: block; }
.contact-item a:hover { color: var(--accent); }

.page-head { border-bottom: 3px solid var(--ink); padding-bottom: clamp(1.2rem, 3vw, 1.8rem); margin-bottom: clamp(1.8rem, 4vw, 2.8rem); }
.page-head__title { font-size: clamp(2.2rem, 5.4vw, 3.8rem); font-weight: 700; letter-spacing: -0.02em; }
.page-head__intro { font-family: var(--serif); font-size: clamp(1.15rem, 1.8vw, 1.35rem); color: var(--ink-soft); margin-top: .9rem; max-width: 52ch; }

/* Footer */
.footer { background: var(--ink); color: #cfccc3; }
.footer a { color: #cfccc3; }
.footer a:hover { color: #fff; }
.footer__top { width: min(100% - 2rem, var(--maxw)); margin-inline: auto; display: grid; grid-template-columns: 1.3fr 2fr; gap: var(--gap); padding: clamp(2.4rem, 5vw, 4rem) 0; }
.footer .logo__word { color: var(--paper); }
.footer .logo__mark { background: var(--paper); color: var(--ink); }
.footer__tag { font-family: var(--serif); font-size: 1.05rem; color: #b6b3aa; margin: 1rem 0; max-width: 30ch; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.footer__col h3 { font-family: var(--sans); color: var(--paper); font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: .9rem; }
.footer__col ul { list-style: none; margin: 0; padding: 0; }
.footer__col li { padding: .25rem 0; font-size: .92rem; }
.footer__bottom { border-top: 1px solid #2c2b27; }
.footer__bottom-inner { width: min(100% - 2rem, var(--maxw)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem; padding: 1.2rem 0; font-family: var(--mono); font-size: .74rem; color: #908d84; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--dur-3) var(--ease-soft), transform var(--dur-3) var(--ease-soft); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Responsive */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .masthead__bar { grid-template-columns: 1fr auto 1fr; }
  .masthead__tag { display: none; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: 1fr; }
  .feature, .step { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
}

/* Split section head */
.section-head--split { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; text-align: left; }
.section-head--split h2 { margin: .3rem 0 0; }

/* Post cards */
.post-grid { align-items: stretch; }
.post-card { display: flex; }
.post-card__link { display: flex; flex-direction: column; gap: .7rem; width: 100%; padding: 1.6rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: inherit; transition: border-color var(--dur-2) var(--ease-soft), transform var(--dur-2) var(--ease-soft); }
.post-card__link:hover { border-color: var(--ink); transform: translateY(-3px); }
.post-card__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.post-card__cat { color: var(--accent); font-weight: 600; }
.post-card__date { color: var(--ink-mute); }
.post-card__title { font-family: var(--serif); font-size: 1.3rem; line-height: 1.2; margin: 0; }
.post-card__summary { color: var(--ink-soft); font-size: .95rem; margin: 0; flex: 1; }
.post-card__more { display: inline-flex; align-items: center; gap: .4rem; margin-top: .2rem; font-family: var(--mono); font-size: .74rem; letter-spacing: .05em; text-transform: uppercase; color: var(--ink); }
.post-card__more svg { width: 15px; height: 15px; transition: transform var(--dur-2) var(--ease-soft); }
.post-card__link:hover .post-card__more svg { transform: translateX(4px); }

/* Article */
.post { width: min(100% - 2rem, 760px); margin-inline: auto; padding: 3rem 0 1rem; }
.post-head { border-bottom: 1px solid var(--line); padding-bottom: 1.8rem; margin-bottom: 2.2rem; }
.post-head__cat { display: inline-block; font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); text-decoration: none; font-weight: 600; }
.post-head__cat:hover { text-decoration: underline; }
.post-head__title { font-family: var(--serif); font-weight: 600; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.08; letter-spacing: -.01em; margin: .8rem 0 0; }
.post-head__lede { font-size: 1.18rem; line-height: 1.6; color: var(--ink-soft); margin: 1rem 0 1.4rem; }
.post-head__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .7rem; font-family: var(--mono); font-size: .78rem; color: var(--ink-mute); }
.post-head__meta span[aria-hidden] { color: var(--line); }
.post-head__tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.2rem; }

/* Article body typography */
.post-body { font-size: 1.08rem; line-height: 1.75; color: var(--ink); }
.post-body > * + * { margin-top: 1.4rem; }
.post-body h2 { font-family: var(--serif); font-weight: 600; font-size: 1.7rem; line-height: 1.2; letter-spacing: -.01em; margin-top: 2.6rem; }
.post-body h3 { font-family: var(--serif); font-weight: 600; font-size: 1.3rem; line-height: 1.25; margin-top: 2rem; }
.post-body h4 { font-weight: 600; font-size: 1.08rem; margin-top: 1.8rem; }
.post-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.post-body ul, .post-body ol { padding-left: 1.4rem; }
.post-body li + li { margin-top: .5rem; }
.post-body blockquote { border-left: 3px solid var(--accent); padding: .2rem 0 .2rem 1.2rem; color: var(--ink-soft); font-style: italic; }
.post-body img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.post-body code { font-family: var(--mono); font-size: .88em; background: var(--paper-2); border: 1px solid var(--line); border-radius: 3px; padding: .1em .35em; }
.post-body pre { background: var(--ink); color: #f3f1ea; padding: 1.2rem 1.3rem; border-radius: var(--radius); overflow-x: auto; font-size: .86rem; line-height: 1.6; }
.post-body pre code { background: none; border: none; padding: 0; color: inherit; font-size: inherit; }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 2.4rem 0; }
.post-body table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: .6rem .8rem; text-align: left; }
.post-body th { background: var(--paper-2); font-family: var(--mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; }

.post-foot { border-top: 1px solid var(--line); margin-top: 2.8rem; padding-top: 1.6rem; }
.post-foot a { display: inline-flex; align-items: center; gap: .4rem; font-family: var(--mono); font-size: .8rem; color: var(--ink); text-decoration: none; }
.post-foot a:hover { color: var(--accent); }
.post-foot svg { width: 15px; height: 15px; }

@media (max-width: 600px) {
  .post { padding-top: 2rem; }
  .post-body pre { font-size: .8rem; }
}