/* =================================================================
   Efficiency Engine Data + AI Solutions, LLC — styles.css
   Plain CSS, no build step. Dark, high-contrast, technical.
   Colors live in :root below — change the brand here.
   ================================================================= */

:root {
  /* --- Brand / theme tokens (edit these) --- */
  --bg:        #0a0c10;   /* page background        */
  --bg-2:      #11151c;   /* raised surfaces        */
  --bg-3:      #161b24;   /* cards                  */
  --line:      #232a36;   /* borders / hairlines    */
  --text:      #e8edf4;   /* primary text           */
  --text-dim:  #9aa6b8;   /* secondary text         */
  --text-mute: #6b7689;   /* tertiary / labels      */
  --accent:    #5cf2c0;   /* primary accent (AI)    */
  --accent-2:  #6aa3ff;   /* secondary accent       */
  --accent-ink:#04130d;   /* text on accent         */
  --danger:    #ff7a7a;   /* "old way" tint         */

  /* --- Type --- */
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* --- Layout --- */
  --maxw: 1120px;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --radius: 14px;
}

/* ---------- Reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* Subtle ambient glow behind the page top */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 520px;
  background:
    radial-gradient(60% 100% at 20% 0%, rgba(92,242,192,.10), transparent 70%),
    radial-gradient(50% 90% at 90% 0%, rgba(106,163,255,.10), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
  position: relative;
  z-index: 1;
}
.section { padding-block: clamp(3.5rem, 9vw, 7rem); }
.eyebrow {
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 .9rem;
}
.section__h {
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 800;
  margin: 0 0 1rem;
  max-width: 22ch;
}
.section__lede {
  color: var(--text-dim);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  max-width: 60ch;
  margin: 0 0 2.5rem;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: .6rem 1rem;
  border-radius: 0 0 var(--radius) 0;
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,12,16,.72);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.nav__brand {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  text-decoration: none;
  font-weight: 800;
}
.nav__mark {
  font-family: var(--mono);
  letter-spacing: .04em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav__sub { color: var(--text-mute); font-size: .82rem; font-weight: 500; }
.nav__links { display: flex; align-items: center; gap: clamp(.5rem, 2vw, 1.6rem); }
.nav__links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: .92rem;
  font-weight: 500;
  transition: color .15s ease;
}
.nav__links a:hover, .nav__links a:focus-visible { color: var(--text); }
.nav__cta {
  border: 1px solid var(--line);
  padding: .42rem .9rem;
  border-radius: 999px;
  color: var(--text) !important;
}
.nav__cta:hover { border-color: var(--accent); }
/* Hide the long text links on small screens; keep brand + contact */
@media (max-width: 640px) {
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  text-decoration: none;
  font-weight: 700;
  font-size: .98rem;
  padding: .8rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
  will-change: transform;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
}
.btn--primary:hover { filter: brightness(1.06); }
.btn--ghost {
  border-color: var(--line);
  color: var(--text);
  background: var(--bg-2);
}
.btn--ghost:hover { border-color: var(--accent); }
.btn--lg { padding: 1rem 1.8rem; font-size: 1.05rem; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 11vw, 7.5rem) clamp(2.5rem, 7vw, 5rem); }
.hero__headline {
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -.03em;
  font-weight: 800;
  margin: 0 0 1.4rem;
  max-width: 18ch;
}
.hero__lede {
  color: var(--text-dim);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  max-width: 56ch;
  margin: 0 0 2rem;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 2.5rem; }
.hero__proof {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.6rem;
  color: var(--text-mute);
  font-family: var(--mono);
  font-size: .85rem;
}
.hero__proof li { display: inline-flex; align-items: center; gap: .55rem; }
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

/* ---------- The shift / contrast ---------- */
.contrast {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  margin-top: .5rem;
}
.contrast__col {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.3rem, 3vw, 2rem);
}
.contrast__col h3 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-family: var(--mono);
  letter-spacing: .02em;
}
.contrast__col ul { margin: 0; padding-left: 1.1rem; color: var(--text-dim); }
.contrast__col li { margin-bottom: .6rem; }
.contrast__col--old { opacity: .82; }
.contrast__col--old h3 { color: var(--danger); }
.contrast__col--new { border-color: rgba(92,242,192,.35); }
.contrast__col--new h3 { color: var(--accent); }
@media (max-width: 720px) {
  .contrast { grid-template-columns: 1fr; }
}

/* ---------- Services cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
@media (max-width: 920px) { .cards { grid-template-columns: 1fr; max-width: 600px; } }
.card {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 1.9rem);
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(106,163,255,.4); }

/* Featured card — the ongoing/retainer offering, visually prioritized */
.card--featured {
  position: relative;
  border-color: rgba(92,242,192,.45);
  background:
    linear-gradient(180deg, rgba(92,242,192,.06), transparent 40%),
    var(--bg-3);
  box-shadow: 0 0 0 1px rgba(92,242,192,.25), 0 18px 50px -28px rgba(92,242,192,.5);
}
.card--featured:hover { border-color: rgba(92,242,192,.8); }
.card--featured .card__tag { color: var(--accent); border-color: rgba(92,242,192,.4); }
.card__badge {
  position: absolute;
  top: -.7rem;
  right: 1.2rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent-ink);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  padding: .3rem .7rem;
  box-shadow: 0 6px 18px -8px rgba(92,242,192,.7);
}
/* On wide screens, let the featured card pull slightly forward */
@media (min-width: 921px) {
  .card--featured { transform: translateY(-8px); }
  .card--featured:hover { transform: translateY(-12px); }
}

.card__tag {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .25rem .65rem;
  margin-bottom: 1rem;
}
.card__title {
  font-size: 1.3rem;
  line-height: 1.2;
  margin: 0 0 1.2rem;
  font-weight: 700;
}
.card__spec { margin: 0; }
.card__spec dt {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-top: 1rem;
}
.card__spec dt:first-child { margin-top: 0; }
.card__spec dd { margin: .3rem 0 0; color: var(--text-dim); }
.services__note {
  margin-top: 2rem;
  color: var(--text-mute);
  font-style: italic;
}

/* ---------- Process steps ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
  counter-reset: step;
}
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 1.9rem);
  position: relative;
}
.step__num {
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--text-mute);
}
.step__role {
  position: absolute;
  top: clamp(1.4rem, 3vw, 1.9rem);
  right: clamp(1.4rem, 3vw, 1.9rem);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.step__role--ai { color: var(--accent); border-color: rgba(92,242,192,.4); }
.step__role--human { color: var(--accent-2); border-color: rgba(106,163,255,.4); }
.step__title { margin: .8rem 0 .5rem; font-size: 1.25rem; }
.step p { margin: 0; color: var(--text-dim); }

/* ---------- Founders ---------- */
.bios {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}
@media (max-width: 760px) { .bios { grid-template-columns: 1fr; max-width: 520px; } }
.bio {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.bio__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: linear-gradient(135deg, var(--bg-2), var(--line));
  border-bottom: 1px solid var(--line);
}
.bio__body { padding: clamp(1.3rem, 3vw, 1.8rem); }
.bio__name { margin: 0; font-size: 1.4rem; }
.bio__role {
  margin: .2rem 0 1rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: .85rem;
}
.bio__text { margin: 0 0 1rem; color: var(--text-dim); }
.bio__links a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
}
.bio__links a:hover { text-decoration: underline; }

/* ---------- Contact ---------- */
.contact { text-align: center; }
.contact__inner { max-width: 640px; margin-inline: auto; }
.contact .section__h { margin-inline: auto; max-width: none; }
.contact .section__lede { margin-inline: auto; }
.contact .btn { margin-top: .5rem; }
.contact__fineprint { margin-top: 1.4rem; color: var(--text-mute); font-size: .92rem; }
.contact__fineprint a { color: var(--accent); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 2rem; }
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  color: var(--text-mute);
  font-size: .88rem;
}
.footer__brand { font-family: var(--mono); color: var(--text-dim); }

/* ---------- Focus visibility (a11y) ---------- */
a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Scroll-in animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}