/* ==========================================================================
   Architech Business Consulting — architechbc.com
   Hand-built static site. No build step, no framework, no dependencies.
   ========================================================================== */

/* --- Reset ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }

/* --- Tokens ------------------------------------------------------------ */
:root {
  --ink:       #0E1116;
  --ink-soft:  #2B323C;
  --slate:     #5C6673;
  --slate-dim: #8B94A0;
  --paper:     #FBFAF8;
  --paper-2:   #F4F2EC;
  --paper-3:   #EBE8E0;
  --line:      #E0DCD3;
  --line-soft: #EEEBE4;
  --accent:    #A97426;
  --accent-ink:#8A5E1C;
  --accent-bg: #F6EEDF;
  --grid:      rgba(14, 17, 22, .045);

  --mark-datum: var(--accent);

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1120px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 4px;
  --shadow: 0 1px 2px rgba(14,17,22,.04), 0 8px 24px -12px rgba(14,17,22,.10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink:       #ECEAE5;
    --ink-soft:  #C9C6BF;
    --slate:     #9AA2AD;
    --slate-dim: #6F7783;
    --paper:     #0E1116;
    --paper-2:   #151A21;
    --paper-3:   #1D232C;
    --line:      #262D37;
    --line-soft: #1C222A;
    --accent:    #D9A455;
    --accent-ink:#E8BC77;
    --accent-bg: #1F1B12;
    --grid:      rgba(236, 234, 229, .05);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px rgba(0,0,0,.6);
  }
}

/* --- Base -------------------------------------------------------------- */
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.1; letter-spacing: -.015em; }
h1 { font-size: clamp(2.5rem, 5.6vw, 4.25rem); letter-spacing: -.028em; }
h2 { font-size: clamp(1.85rem, 3.4vw, 2.6rem); letter-spacing: -.022em; }
h3 { font-size: 1.2rem; font-family: var(--font-body); font-weight: 600; letter-spacing: -.01em; line-height: 1.35; }

a { color: inherit; text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px;
}

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.lede { font-size: clamp(1.075rem, 1.6vw, 1.25rem); color: var(--slate); line-height: 1.65; max-width: 62ch; }
.mono { font-family: var(--font-mono); }

/* Eyebrow label — small caps, monospaced, with a leading rule */
.eyebrow {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase; color: var(--slate-dim);
  display: flex; align-items: center; gap: .75rem; margin-bottom: 1.5rem;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--accent); flex: none;
}

/* --- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .78rem 1.35rem; border-radius: var(--radius);
  font-size: .945rem; font-weight: 500; letter-spacing: -.005em;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--accent-ink); transform: translateY(-1px); }
@media (prefers-color-scheme: dark) { .btn--primary:hover { background: var(--accent); color: #0E1116; } }
.btn--ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent-ink); }
.btn__arrow { transition: transform .18s ease; }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* --- Header ------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.site-header[data-scrolled="true"] { border-bottom-color: var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: 72px; }

.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); }
.brand svg { width: 26px; height: 26px; color: var(--ink); flex: none; }
.brand__name { font-family: var(--font-display); font-size: 1.16rem; font-weight: 600; letter-spacing: -.02em; }
.brand__name em { font-style: normal; color: var(--accent); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav__links { display: flex; gap: 2rem; list-style: none; padding: 0; }
.nav__links a {
  text-decoration: none; font-size: .93rem; color: var(--slate);
  transition: color .16s ease; position: relative;
}
.nav__links a:hover { color: var(--ink); }

.nav__toggle { display: none; background: none; border: 1px solid var(--line); border-radius: var(--radius); padding: .5rem .7rem; cursor: pointer; }
.nav__toggle svg { width: 18px; height: 18px; }

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav[data-open="true"] .nav__links {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; inset: 72px 0 auto; background: var(--paper);
    border-bottom: 1px solid var(--line); padding: .5rem var(--gutter) 1.25rem;
  }
  .nav[data-open="true"] .nav__links a { display: block; padding: .8rem 0; border-bottom: 1px solid var(--line-soft); font-size: 1rem; }
  .header-cta { display: none; }
}

/* --- Hero -------------------------------------------------------------- */
.hero { position: relative; padding: clamp(4.5rem, 11vw, 8.5rem) 0 clamp(3.5rem, 7vw, 5.5rem); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px),
                    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(115% 78% at 72% 6%, #000 0%, transparent 72%);
          mask-image: radial-gradient(115% 78% at 72% 6%, #000 0%, transparent 72%);
}
.hero .wrap { position: relative; }
.hero h1 { max-width: 17ch; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero__lede { margin-top: 1.6rem; max-width: 56ch; }
.hero__actions { margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.hero__sig {
  margin-top: 3.25rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  font-family: var(--font-display); font-style: italic; font-size: 1.075rem;
  color: var(--slate); max-width: 46ch;
}

/* --- Working depth ----------------------------------------------------- */
.depth { display: grid; gap: 2.25rem 2.5rem; }
@media (min-width: 700px)  { .depth { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .depth { grid-template-columns: repeat(3, 1fr); } }

.depth__group h3 {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase; color: var(--slate-dim);
  padding-bottom: .7rem; border-bottom: 1px solid var(--line); margin-bottom: 1rem;
}
.depth__group ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.depth__group li {
  font-size: .855rem; line-height: 1.4; color: var(--ink);
  border: 1px solid var(--line); border-radius: 100px;
  padding: .32rem .72rem; background: var(--paper);
}

.depth__also {
  margin-top: clamp(2.25rem, 4vw, 3rem); padding-top: 1.5rem;
  border-top: 1px solid var(--line); color: var(--slate);
  font-size: .89rem; line-height: 1.8; max-width: 78ch;
}
.depth__also span {
  display: block; font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--slate-dim);
  margin-bottom: .55rem;
}

/* --- Sections ---------------------------------------------------------- */
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section--tint { background: var(--paper-2); border-block: 1px solid var(--line); }
.section__head { max-width: 60ch; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.section__head p { margin-top: 1.1rem; color: var(--slate); font-size: 1.06rem; }

/* --- Services ---------------------------------------------------------- */
.services { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 760px) { .services { grid-template-columns: 1fr 1fr; } }
.service { background: var(--paper); padding: clamp(1.75rem, 3.2vw, 2.5rem); display: flex; flex-direction: column; gap: .9rem; }
.section--tint .service { background: var(--paper-2); }
.service__num { font-family: var(--font-mono); font-size: .72rem; color: var(--accent); letter-spacing: .1em; }
.service p { color: var(--slate); font-size: .985rem; }
.service ul { list-style: none; padding: 0; margin-top: .35rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.service ul li {
  font-family: var(--font-mono); font-size: .74rem; color: var(--slate);
  border: 1px solid var(--line); border-radius: 100px; padding: .22rem .6rem; background: var(--paper);
}

/* --- Approach ---------------------------------------------------------- */
.approach { display: grid; gap: 0; }
.approach__item {
  display: grid; gap: .4rem 2rem; padding: 1.75rem 0; border-top: 1px solid var(--line);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) { .approach__item { grid-template-columns: 4.5rem 20rem 1fr; align-items: baseline; } }
.approach__item:last-child { border-bottom: 1px solid var(--line); }
.approach__num { font-family: var(--font-mono); font-size: .78rem; color: var(--accent); }
.approach__item p { color: var(--slate); font-size: 1rem; }

/* --- Sectors (anonymized proof) ---------------------------------------- */
.sectors { display: grid; gap: 1.25rem; }
@media (min-width: 720px) { .sectors { grid-template-columns: repeat(2, 1fr); } }
.sector {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.4rem, 2.6vw, 1.9rem); background: var(--paper);
  display: flex; flex-direction: column; gap: .7rem;
}
.sector__tag {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
}
.sector h3 { font-size: 1.06rem; }
.sector p { color: var(--slate); font-size: .95rem; }

/* --- About ------------------------------------------------------------- */
.about { display: grid; gap: clamp(2rem, 5vw, 4rem); }
@media (min-width: 900px) { .about { grid-template-columns: 1fr 1.15fr; align-items: start; } }
.about__body p + p { margin-top: 1.1rem; }
.about__body p { color: var(--slate); }
.about__facts { list-style: none; padding: 0; border-top: 1px solid var(--line); }
.about__facts li { display: flex; justify-content: space-between; gap: 1.5rem; padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: .93rem; }
.about__facts .k { color: var(--slate-dim); font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.about__facts .v { text-align: right; font-weight: 500; }

/* --- Contact ----------------------------------------------------------- */
.contact { text-align: center; max-width: 46rem; margin-inline: auto; }
.contact h2 { margin-bottom: 1.1rem; }
.contact p { color: var(--slate); }
.contact__actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; }
.contact__mail {
  display: inline-block; margin-top: 1.8rem; font-family: var(--font-mono);
  font-size: 1.02rem; color: var(--ink); text-decoration: none;
  border-bottom: 1px solid var(--accent); padding-bottom: .15rem;
}
.contact__mail:hover { color: var(--accent-ink); }

/* --- Footer ------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--line); padding: 2.75rem 0; background: var(--paper-2); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; justify-content: space-between; }
.site-footer small, .site-footer a { font-size: .86rem; color: var(--slate); }
.site-footer nav { display: flex; gap: 1.5rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

/* --- Skip link --------------------------------------------------------- */
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: .7rem 1.1rem; border-radius: var(--radius);
}
.skip:focus { left: 1rem; top: 1rem; }