/* Satsang Technology — shared styles
   Palette: indigo-ink, ivory, brass. Type: Fraunces + Inter + IBM Plex Mono.
   Signature: an operations "ledger" motif — the company builds the systems
   that keep organisations running, so work is presented as register line-items. */

:root {
  --ink:       #1B1F3B;
  --ink-deep:  #12142A;
  --ivory:     #F7F5EF;
  --ivory-2:   #EFEBE0;
  --brass:     #C6A15B;
  --brass-dim: #A9863F;
  --slate:     #5A6072;
  --line:      #DAD5C7;
  --line-dark: #2C3158;

  --serif: "Fraunces", Georgia, serif;
  --sans:  "Inter", system-ui, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--ivory);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }

/* --- eyebrow / mono labels: the "ledger" voice --- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass-dim);
}

/* ---------------- Header ---------------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,245,239,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .mark {
  font-family: var(--serif); font-weight: 600; font-size: 22px;
  color: var(--ink); letter-spacing: -0.01em;
}
.brand .mark b { color: var(--brass-dim); font-weight: 600; }
.brand .tag {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--slate);
}
.nav { display: flex; gap: 30px; align-items: center; }
.nav a {
  font-size: 14.5px; color: var(--ink); position: relative; padding: 4px 0;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1.5px; width: 0;
  background: var(--brass); transition: width .25s ease;
}
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--brass-dim); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* ---------------- Footer ---------------- */
.site-foot {
  background: var(--ink-deep); color: var(--ivory);
  margin-top: 96px; padding: 56px 0 40px;
}
.site-foot .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-foot .mark { font-family: var(--serif); font-size: 22px; color: var(--ivory); }
.site-foot .mark b { color: var(--brass); }
.site-foot p { color: #A9AEC6; font-size: 14px; margin-top: 12px; max-width: 34ch; }
.foot-col h4 {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--brass); margin-bottom: 14px;
}
.foot-col a, .foot-col span { display: block; color: #C7CBDD; font-size: 14px; margin-bottom: 9px; }
.foot-col a:hover { color: var(--ivory); }
.foot-base {
  border-top: 1px solid var(--line-dark); margin-top: 44px; padding-top: 22px;
  font-family: var(--mono); font-size: 11.5px; color: #7B819C;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--sans); font-size: 15px; font-weight: 500;
  padding: 13px 24px; border-radius: 2px; cursor: pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--ink); color: var(--ivory); }
.btn-primary:hover { background: var(--brass-dim); transform: translateY(-1px); }
.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--ivory); }
.btn .arw { transition: transform .2s ease; }
.btn:hover .arw { transform: translateX(3px); }

/* ---------------- Generic section ---------------- */
.section { padding: 88px 0; }
.section-head { max-width: 62ch; margin-bottom: 48px; }
.section-head .eyebrow { display: block; margin-bottom: 14px; }
.section-head h2 {
  font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 4vw, 44px);
  line-height: 1.08; letter-spacing: -0.02em; color: var(--ink);
}
.section-head p { color: var(--slate); font-size: 17px; margin-top: 16px; }

/* ---------------- Hero ---------------- */
.hero { padding: 100px 0 84px; position: relative; overflow: hidden; }
.hero .eyebrow { display: block; margin-bottom: 22px; }
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(40px, 7vw, 82px); line-height: 1.02; letter-spacing: -0.03em;
  color: var(--ink); max-width: 15ch;
}
.hero h1 em { font-style: italic; color: var(--brass-dim); }
.hero .lede {
  font-size: clamp(17px, 2vw, 20px); color: var(--slate);
  max-width: 54ch; margin: 28px 0 36px; line-height: 1.55;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* the ledger strip under the hero */
.ledger {
  margin-top: 76px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.ledger-row {
  display: grid; grid-template-columns: 56px 1.6fr 1fr auto;
  gap: 24px; align-items: center;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.ledger-row:last-child { border-bottom: 0; }
.ledger-row .idx { font-family: var(--mono); font-size: 12px; color: var(--brass-dim); }
.ledger-row .what { font-family: var(--serif); font-size: 19px; color: var(--ink); }
.ledger-row .meta { font-family: var(--mono); font-size: 12.5px; color: var(--slate); letter-spacing: .02em; }
.ledger-row .stat { font-family: var(--serif); font-size: 22px; color: var(--ink); text-align: right; }
.ledger-row .stat small { display:block; font-family: var(--mono); font-size: 10.5px; letter-spacing:.12em; text-transform:uppercase; color: var(--slate); }

/* ---------------- Cards grid ---------------- */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cell {
  background: var(--ivory); padding: 34px 30px;
  transition: background .25s ease;
}
.cell:hover { background: #FBFAF5; }
.cell .num { font-family: var(--mono); font-size: 12px; color: var(--brass-dim); letter-spacing: .12em; }
.cell h3 { font-family: var(--serif); font-weight: 500; font-size: 22px; margin: 16px 0 10px; letter-spacing: -0.01em; }
.cell p { color: var(--slate); font-size: 15px; }
.cell .stack {
  font-family: var(--mono); font-size: 11.5px; color: var(--slate);
  margin-top: 18px; letter-spacing: .02em; line-height: 1.9;
}
.cell .stack b { color: var(--ink); font-weight: 500; }

/* ---------------- Portfolio entries ---------------- */
.entry {
  display: grid; grid-template-columns: 90px 1fr; gap: 30px;
  padding: 40px 0; border-top: 1px solid var(--line); align-items: start;
}
.entry:first-of-type { border-top: 0; }
.entry .code { font-family: var(--mono); font-size: 12px; color: var(--brass-dim); letter-spacing: .1em; padding-top: 8px; }
.entry h3 { font-family: var(--serif); font-weight: 500; font-size: 26px; letter-spacing: -0.01em; }
.entry .role { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--slate); margin: 6px 0 14px; }
.entry p { color: var(--slate); font-size: 16px; max-width: 62ch; }
.entry .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.entry .chip {
  font-family: var(--mono); font-size: 11.5px; color: var(--ink);
  border: 1px solid var(--line); padding: 5px 11px; border-radius: 2px; background: #fff;
}

/* ---------------- Callout band ---------------- */
.band { background: var(--ink); color: var(--ivory); padding: 72px 0; }
.band h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; max-width: 20ch; }
.band p { color: #B7BCD4; margin: 16px 0 30px; max-width: 52ch; font-size: 17px; }
.band .eyebrow { color: var(--brass); display:block; margin-bottom: 16px; }
.band .btn-primary { background: var(--brass); color: var(--ink-deep); }
.band .btn-primary:hover { background: var(--ivory); }

/* ---------------- Contact ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.field { margin-bottom: 20px; }
.field label {
  display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--slate); margin-bottom: 8px;
}
.field input, .field textarea {
  width: 100%; font-family: var(--sans); font-size: 15px; color: var(--ink);
  padding: 13px 14px; background: #fff; border: 1px solid var(--line); border-radius: 2px;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--brass); border-color: var(--brass); }
.field textarea { resize: vertical; min-height: 130px; }
.contact-detail { border-top: 1px solid var(--line); padding: 20px 0; }
.contact-detail .k { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--brass-dim); }
.contact-detail .v { font-size: 17px; color: var(--ink); margin-top: 6px; }

/* ---------------- Utility ---------------- */
.lead-serif { font-family: var(--serif); font-weight: 500; font-size: clamp(22px, 3vw, 30px); line-height: 1.3; letter-spacing: -0.01em; color: var(--ink); max-width: 24ch; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.prose p { color: var(--slate); font-size: 16px; margin-bottom: 16px; max-width: 60ch; }
.prose p strong { color: var(--ink); font-weight: 600; }

/* ---------------- Responsive ---------------- */
@media (max-width: 860px) {
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--ivory); border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav a { padding: 16px 24px; width: 100%; border-top: 1px solid var(--line); }
  .nav-toggle { display: block; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .two-col, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .site-foot .wrap { grid-template-columns: 1fr; gap: 30px; }
  .ledger-row { grid-template-columns: 40px 1fr; row-gap: 4px; }
  .ledger-row .meta { grid-column: 2; }
  .ledger-row .stat { grid-column: 2; text-align: left; }
  .entry { grid-template-columns: 1fr; gap: 10px; }
  .entry .code { padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}