/* ============================================================
   DSE GROUP — dsegroup.ai
   Brand: ink black / warm white / bronze-gold (from logo bars)
   Type:  Archivo (display) · Inter (body)
   ============================================================ */

:root {
  --ink: #0a0a0c;
  --ink-2: #121215;
  --paper: #f7f6f2;
  --white: #ffffff;
  --text: #17171b;
  --muted: #5c5c64;
  --muted-dark: #9a9aa2;
  --line: #e5e2d8;
  --line-dark: #26262b;
  --gold: #c19244;
  --gold-deep: #8a6420;
  --gold-bright: #e2b45c;
  --gold-grad: linear-gradient(180deg, #6e4e17 0%, #e2b45c 45%, #8a6420 100%);
  --gold-grad-h: linear-gradient(90deg, #8a6420 0%, #e2b45c 50%, #6e4e17 100%);
  --radius: 14px;
  --max: 1140px;
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ---------- Logo ---------- */
.logo-img { height: 42px; width: auto; display: block; }
.footer .logo-img { height: 52px; }

/* legacy mark styles (kept for safety) */
.mark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.mark .bar { width: 3px; height: 30px; border-radius: 2px; background: var(--gold-grad); }
.mark .mark-text { display: flex; flex-direction: column; line-height: 1; }
.mark .mark-dse {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--white);
}
.mark .mark-group {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.5rem;
  letter-spacing: 0.62em;
  color: var(--white);
  margin-top: 4px;
  text-transform: uppercase;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: rgba(10, 10, 12, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  font-size: 0.86rem; font-weight: 500; letter-spacing: 0.04em;
  color: var(--muted-dark); text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-cta {
  font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink) !important; background: var(--white);
  padding: 10px 18px; border-radius: 8px; text-decoration: none;
}
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); margin: 5px 0; border-radius: 2px; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--ink); border-bottom: 1px solid var(--line-dark);
    display: none; padding: 8px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 14px 24px; font-size: 1rem; }
  .nav-cta { margin: 10px 24px 14px; display: inline-block; }
}

/* ---------- Hero (dark) ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink); color: var(--white);
  padding: 168px 0 120px;
}
.hero.hero-sub { padding: 150px 0 90px; }
#neural { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.9; }
.hero .wrap { position: relative; z-index: 2; text-align: center; }
.hero h1 { margin-left: auto; margin-right: auto; }
.hero .lede { margin-left: auto; margin-right: auto; }
.hero-actions { justify-content: center; }
.hero-meta { justify-content: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.72rem;
  letter-spacing: 0.42em; text-transform: uppercase;
}
.eyebrow::before, .eyebrow::after {
  content: ""; width: 2px; height: 16px; border-radius: 2px; background: var(--gold-grad);
}
.hero .eyebrow { color: var(--gold-bright); }

.hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.4rem, 5.2vw, 4.1rem);
  line-height: 1.08; letter-spacing: -0.02em;
  margin: 22px 0 22px; max-width: none;
}
.hero h1 .gold {
  background: var(--gold-grad-h);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lede { font-size: 1.16rem; color: var(--white); max-width: 56ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 15px 28px; border-radius: 10px; border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: var(--gold-grad-h); color: var(--ink); }
.btn-gold:hover { box-shadow: 0 8px 30px rgba(193, 146, 68, 0.35); }
.btn-ghost { color: var(--white); border-color: rgba(255,255,255,0.25); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-bright); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { box-shadow: 0 8px 24px rgba(10,10,12,0.25); }

.hero-meta {
  margin-top: 58px; padding-top: 26px; border-top: 1px solid var(--line-dark);
  display: flex; flex-wrap: wrap; gap: 12px 40px;
  font-family: var(--font-display); font-weight: 700;
  font-size: 0.85rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--white);
}

/* ---------- Light sections ---------- */
.section { padding: 96px 0; }
.section.alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 720px; margin-bottom: 54px; }
.section-head .eyebrow { color: var(--gold-deep); }
.section-head h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.12; letter-spacing: -0.015em;
  margin: 16px 0 14px;
}
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.section.alt .card { background: var(--paper); }
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(23,23,27,0.08); }
.card::before {
  content: ""; position: absolute; left: 0; top: 28px; bottom: 28px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--gold-grad); opacity: 0;
  transition: opacity 0.2s ease;
}
.card:hover::before { opacity: 1; }
.card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.18rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.97rem; }
.card .card-tag {
  font-family: var(--font-display); font-weight: 600; font-size: 0.68rem;
  letter-spacing: 0.32em; text-transform: uppercase; color: var(--gold-deep);
  display: block; margin-bottom: 14px;
}
.card a.card-link {
  display: inline-block; margin-top: 18px; font-weight: 600; font-size: 0.9rem;
  color: var(--text); text-decoration: none; border-bottom: 1px solid var(--gold);
}
.card a.card-link:hover { color: var(--gold-deep); }

/* Process rows */
.rows { display: grid; gap: 0; border-top: 1px solid var(--line); }
.row {
  display: grid; grid-template-columns: 220px 1fr; gap: 32px;
  padding: 34px 0; border-bottom: 1px solid var(--line);
}
.row .row-label {
  font-family: var(--font-display); font-weight: 700; font-size: 1rem;
  display: flex; align-items: flex-start; gap: 12px;
}
.row .row-label::before { content: ""; width: 3px; height: 22px; margin-top: 3px; border-radius: 2px; background: var(--gold-grad); flex: none; }
.row p { color: var(--muted); max-width: 62ch; }
@media (max-width: 720px) { .row { grid-template-columns: 1fr; gap: 10px; } }

/* Feature list */
.checks { list-style: none; display: grid; gap: 14px; }
.checks li { padding-left: 26px; position: relative; color: var(--muted); }
.checks li strong { color: var(--text); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 10px; height: 10px; border-radius: 2px; background: var(--gold-grad);
}

/* Dark CTA band */
.cta-band { background: var(--ink); color: var(--white); padding: 90px 0; position: relative; overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 2px; height: 46px; background: var(--gold-grad);
}
.cta-band .wrap { text-align: center; }
.cta-band h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem); letter-spacing: -0.015em; margin-bottom: 14px;
}
.cta-band p { color: var(--white); max-width: 52ch; margin: 0 auto 32px; }

/* ---------- Blog ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 900px) { .post-grid { grid-template-columns: 1fr; } }
.post-card { text-decoration: none; }
.post-card time { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 12px; }

.article { max-width: 720px; margin: 0 auto; padding: 150px 24px 90px; }
.article h1 { font-family: var(--font-display); font-weight: 800; font-size: clamp(1.9rem, 4vw, 2.7rem); line-height: 1.12; margin: 14px 0 10px; }
.article .article-meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 36px; }
.article h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; margin: 40px 0 12px; }
.article p { margin-bottom: 18px; }
.article .eyebrow { color: var(--gold-deep); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; gap: 36px; } }
.contact-info h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; margin: 26px 0 6px; }
.contact-info p, .contact-info a { color: var(--muted); text-decoration: none; }
.contact-info a:hover { color: var(--gold-deep); }

.form { display: grid; gap: 18px; }
.form label { font-weight: 600; font-size: 0.88rem; display: grid; gap: 8px; }
.form input, .form select, .form textarea {
  font: inherit; padding: 13px 15px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--white); color: var(--text); width: 100%;
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--gold); outline: none; box-shadow: 0 0 0 3px rgba(193,146,68,0.18); }
.form textarea { min-height: 140px; resize: vertical; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: var(--muted-dark); padding: 70px 0 36px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h4 {
  font-family: var(--font-display); font-weight: 600; font-size: 0.72rem;
  letter-spacing: 0.32em; text-transform: uppercase; color: var(--white); margin-bottom: 18px;
}
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer a { color: var(--muted-dark); text-decoration: none; font-size: 0.92rem; }
.footer a:hover { color: var(--gold-bright); }
.footer .footer-blurb { font-size: 0.92rem; max-width: 34ch; margin-top: 16px; }
.footer-bottom {
  border-top: 1px solid var(--line-dark); padding-top: 26px;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: 0.8rem;
}

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- Client logo marquee ---------- */
.clients { background: var(--ink); padding: 40px 0 56px; overflow: hidden; }
.clients-label {
  text-align: center;
  font-family: var(--font-display); font-weight: 600; font-size: 0.7rem;
  letter-spacing: 0.38em; text-transform: uppercase; color: var(--muted-dark);
  margin-bottom: 34px;
}
.marquee { position: relative; }
.marquee::before, .marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--ink), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--ink), transparent); }
.marquee-track {
  display: flex; align-items: center; width: max-content;
  animation: marquee 32s linear infinite;
}
.marquee-set { display: flex; align-items: center; gap: 90px; padding-right: 90px; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; width: 100%; justify-content: center; }
  .marquee-set { flex-wrap: wrap; justify-content: center; gap: 40px; padding-right: 0; }
  .marquee-set[aria-hidden="true"] { display: none; }
}
.client-logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.45);
  white-space: nowrap; transition: color 0.2s;
}
.client-logo:hover { color: rgba(255,255,255,0.85); }
.client-logo-img { height: 32px; width: auto; opacity: 0.6; transition: opacity 0.2s; }
.client-logo-img:hover { opacity: 0.95; }


/* ---------- Mobile refinements ---------- */
@media (max-width: 640px) {
  /* the forced two-line headline breaks awkwardly on narrow screens:
     drop the <br> and let it wrap naturally at a smaller size */
  .hero h1 br { display: none; }
  .hero h1 { font-size: clamp(1.9rem, 9vw, 2.4rem); line-height: 1.12; }
  .hero { padding: 140px 0 90px; }
  .hero.hero-sub { padding: 128px 0 70px; }
  .section { padding: 68px 0; }
  .cta-band { padding: 70px 0; }
  .hero-meta { gap: 10px 24px; font-size: 0.78rem; }
  .marquee-set { gap: 56px; padding-right: 56px; }
  .client-logo-img { height: 26px; }
  .btn { width: 100%; text-align: center; }
  .hero-actions { flex-direction: column; align-items: stretch; }
}


/* ---------- Blog: white background + link styling ---------- */
body.page-white { background: var(--white); }
body.page-white .card { background: var(--white); }
.article a:not(.btn) {
  color: inherit; font-weight: 700; text-decoration: underline;
  text-decoration-color: var(--gold); text-underline-offset: 3px;
}
.article a:not(.btn):hover { color: var(--gold-deep); }