/* ===== Design tokens ===== */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --surface: #ffffff;
  --border: #e4e7ec;
  --ink: #1b2333;        /* primary text - deep navy/slate */
  --ink-soft: #51596b;   /* secondary text */
  --muted: #7b8194;
  --accent: #2A33C4;     /* brand indigo */
  --accent-soft: #EEF0FE;
  --accent-ink: #1f2691;
  --radius: 10px;
  --maxw: 1120px;
  --font-display: "Space Grotesk", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.18; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 24px; border-radius: 8px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  border: 1px solid transparent; transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-ink); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--full { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.brand { display: inline-flex; align-items: center; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; letter-spacing: 0.02em; color: var(--ink); }
.brand__logo { height: 46px; width: auto; display: block; }
.site-footer .brand__logo { height: 38px; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { color: var(--ink-soft); font-weight: 500; font-size: 0.95rem; transition: color .2s; }
.nav__links a:hover { color: var(--accent); }
.nav__links .btn { color: #fff; }
.nav__toggle { display: none; background: none; border: 0; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }

/* ===== Eyebrow ===== */
.eyebrow {
  display: inline-block; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; font-size: .76rem;
  color: var(--accent); margin-bottom: 16px;
}

/* ===== Hero ===== */
.hero { padding: 96px 28px 72px; max-width: 820px; }
.hero__title { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 600; color: var(--ink); }
.hero__sub { color: var(--ink-soft); font-size: clamp(1.05rem, 2vw, 1.18rem); max-width: 640px; margin-top: 22px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero__stats { display: flex; gap: 56px; flex-wrap: wrap; margin-top: 64px; border-top: 1px solid var(--border); padding-top: 36px; }
.stat { display: flex; flex-direction: column; max-width: 220px; }
.stat__num { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--accent); }
.stat__label { color: var(--muted); font-size: .92rem; margin-top: 2px; }

/* ===== Marquee (subtle capability strip) ===== */
.marquee-wrap { overflow: hidden; background: var(--accent); padding: 18px 0; margin: 0; max-width: 100%; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee { display: flex; gap: 44px; width: max-content; animation: scroll 36s linear infinite; }
.marquee span { color: rgba(255, 255, 255, 0.92); font-weight: 600; font-size: 0.92rem; white-space: nowrap; letter-spacing: 0.04em; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ===== Sections ===== */
.section { padding: 84px 28px; }
.section--alt { background: var(--bg-alt); }
.section__head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section__head h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); }
.section__lede { color: var(--ink-soft); margin-top: 14px; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.card { background: var(--surface); padding: 32px 28px; transition: background .2s ease; }
.card:hover { background: var(--accent-soft); }
.card h3, .card h4 { font-size: 1.12rem; margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: .97rem; }
.card__tagline { color: var(--accent-ink); font-weight: 500; font-style: italic; margin-bottom: 10px; }
.card__best { font-size: .9rem; color: var(--muted); margin-top: 12px; }
.card__best strong { color: var(--ink-soft); }
.cards--2 { grid-template-columns: repeat(2, 1fr); }
.cards--1 { grid-template-columns: 1fr; }

/* ===== Product groups ===== */
.prod-group { margin-top: 56px; }
.prod-group:first-of-type { margin-top: 8px; }
.prod-group__head { max-width: 720px; margin: 0 auto 28px; text-align: center; }
.prod-group__icon { width: 56px; height: 56px; margin: 0 auto 14px; display: block; }
.prod-group__tag { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: 5px 12px; border-radius: 999px; margin-bottom: 14px; }
.prod-group__head h3 { font-size: 1.5rem; }
.prod-group__head p { color: var(--ink-soft); margin-top: 8px; font-size: 1rem; }
.prod-closing { max-width: 760px; margin: 56px auto 0; text-align: center; color: var(--ink-soft); font-size: 1.02rem; padding-top: 32px; border-top: 1px solid var(--border); }

/* ===== Practices ===== */
.practices { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.practice { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 28px; transition: border-color .2s ease, box-shadow .2s ease; }
.practice:hover { border-color: var(--accent); box-shadow: 0 6px 24px rgba(42, 51, 196, 0.06); }
.practice__icon { width: 48px; height: 48px; display: block; margin-bottom: 16px; }
.practice h3 { font-size: 1.2rem; margin-bottom: 8px; }
.practice__tagline { color: var(--accent-ink); font-weight: 500; font-style: italic; margin-bottom: 12px; }
.practice > p { color: var(--ink-soft); font-size: .96rem; }
.practice__list { list-style: none; margin: 16px 0; display: grid; gap: 7px; }
.practice__list li { position: relative; padding-left: 20px; color: var(--ink-soft); font-size: .92rem; }
.practice__list li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.practice__meta { font-size: .88rem; color: var(--muted); margin-top: 10px; }
.practice__meta strong { color: var(--ink); }

/* ===== About blocks ===== */
.about__block { margin-top: 22px; }
.about__block h4 { font-size: 1.02rem; color: var(--accent); margin-bottom: 4px; }
.about__block p { margin-bottom: 0; }

/* ===== Steps ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; list-style: none; }
.step { padding-top: 20px; border-top: 2px solid var(--accent); }
.step__num { font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; color: var(--accent); display: block; margin-bottom: 10px; letter-spacing: 0.05em; }
.step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: .94rem; }

/* ===== Section note ===== */
.section__note { text-align: center; color: var(--muted); font-size: .88rem; margin-top: 28px; font-style: italic; }

/* ===== Posts / Blog ===== */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 26px; display: flex; flex-direction: column; transition: border-color .2s ease; }
.post:hover { border-color: var(--accent); }
.post__meta { font-size: .76rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.post h3 { font-size: 1.12rem; margin-bottom: 10px; }
.post p { color: var(--ink-soft); font-size: .95rem; flex: 1; }
.post__link { color: var(--accent); font-weight: 600; font-size: .9rem; margin-top: 16px; }

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); margin: 6px 0 18px; }
.about p { color: var(--ink-soft); margin-bottom: 16px; }
.about .btn { margin-top: 10px; }
.about__panel { display: grid; gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.panel__item { padding: 24px 26px; border-bottom: 1px solid var(--border); }
.panel__item:last-child { border-bottom: 0; }
.panel__item h4 { font-size: 1.02rem; color: var(--accent); margin-bottom: 4px; }
.panel__item p { color: var(--ink-soft); font-size: .94rem; margin: 0; }

/* ===== Contact ===== */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact__intro h2 { font-size: clamp(1.6rem, 3.2vw, 2.1rem); margin: 6px 0 14px; }
.contact__intro p { color: var(--ink-soft); }
.contact__direct { margin-top: 18px; }
.contact__direct a { color: var(--accent); font-weight: 600; }
.contact__form { display: grid; gap: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .9rem; font-weight: 500; color: var(--ink); }
.opt { color: var(--muted); font-weight: 400; }
.field input, .field textarea {
  background: #fff; border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px; color: var(--ink); font: inherit;
  transition: border-color .2s, box-shadow .2s; resize: vertical;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form__status { font-size: .9rem; min-height: 1.2em; }
.form__status.ok { color: var(--accent); }
.form__status.err { color: #b4434e; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); padding: 36px 28px; background: var(--bg-alt); }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer__copy { color: var(--muted); font-size: .9rem; }
.footer__links { display: flex; gap: 24px; }
.footer__links a { color: var(--ink-soft); font-size: .9rem; transition: color .2s; }
.footer__links a:hover { color: var(--accent); }

/* ===== Article (blog post) ===== */
.article { max-width: 760px; margin: 0 auto; padding: 64px 28px 24px; }
.article__back { display: inline-block; color: var(--accent); font-weight: 600; font-size: .92rem; margin-bottom: 28px; }
.article__cat { font-size: .76rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.article__title { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin: 12px 0 14px; }
.article__meta { color: var(--muted); font-size: .92rem; border-bottom: 1px solid var(--border); padding-bottom: 24px; margin-bottom: 32px; }
.article__body { font-size: 1.06rem; color: var(--ink-soft); }
.article__body h2 { font-size: 1.4rem; color: var(--ink); margin: 36px 0 12px; }
.article__body h3 { font-size: 1.12rem; color: var(--ink); margin: 26px 0 8px; }
.article__body p { margin-bottom: 18px; }
.article__body ul, .article__body ol { margin: 0 0 18px 22px; display: grid; gap: 8px; }
.article__body li { color: var(--ink-soft); }
.article__body strong { color: var(--ink); }
.article__cta { margin: 44px 0 8px; padding: 28px; background: var(--accent-soft); border-radius: var(--radius); text-align: center; }
.article__cta h3 { font-size: 1.2rem; margin-bottom: 10px; }
.article__cta p { color: var(--ink-soft); margin-bottom: 16px; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cards--1 { grid-template-columns: 1fr; }
  .practices { grid-template-columns: 1fr; }
  .posts { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about, .contact { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.open {
    display: flex; flex-direction: column; position: absolute; top: 78px; left: 0; right: 0;
    background: #fff; padding: 24px; gap: 18px; border-bottom: 1px solid var(--border);
  }
  .cards, .cards--2, .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 64px; }
  .hero__stats { gap: 28px; }
}