/* ============================================
   CaSync — design tokens
   Concept: the accounting "reconciliation" —
   two ledgers (India / Global) meeting and balancing.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --ink: #101b26;
  --ink-soft: #1c2c3c;
  --paper: #eef0ea;
  --paper-raised: #f7f8f4;
  --line: #c7cdc2;
  --line-strong: #10202f;
  --brass: #b8863d;
  --brass-deep: #8f6524;
  --slate: #4a6670;
  --sync-green: #3e7358;
  --alert: #9c3b2e;
  --ink-70: rgba(16, 27, 38, 0.7);
  --ink-50: rgba(16, 27, 38, 0.5);

  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;

  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

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

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

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0; color: var(--ink); }
h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; color: var(--ink-70); }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before { content: ''; width: 14px; height: 1px; background: var(--brass); display: inline-block; }

/* ---------- Header ---------- */
header.site {
  background: var(--ink);
  color: var(--paper-raised);
  border-bottom: 1px solid var(--line-strong);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max);
  margin: 0 auto;
}
.brand {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand span { color: var(--brass); }
.navlinks {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0; padding: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.navlinks a { text-decoration: none; color: rgba(255,255,255,0.72); transition: color 0.2s; padding-bottom: 4px; border-bottom: 1px solid transparent; }
.navlinks a:hover, .navlinks a.active { color: #fff; border-color: var(--brass); }
.navtoggle { display: none; background: none; border: 1px solid rgba(255,255,255,0.3); color: #fff; padding: 8px 10px; font-family: var(--mono); font-size: 0.75rem; cursor: pointer; }

@media (max-width: 780px) {
  .navlinks { position: absolute; top: 64px; left: 0; right: 0; background: var(--ink); flex-direction: column; padding: 16px 24px 24px; gap: 16px; display: none; border-bottom: 1px solid var(--line-strong); }
  .navlinks.open { display: flex; }
  .navtoggle { display: block; }
  .nav { position: relative; }
}

/* ---------- Hero / reconciliation signature ---------- */
.hero { background: var(--ink); color: #fff; padding: 64px 0 0; position: relative; overflow: hidden; }
.hero-inner { max-width: var(--max); margin: 0 auto; padding: 0 24px 56px; }
.hero h1 { color: #fff; max-width: 780px; }
.hero .lede { color: rgba(255,255,255,0.68); font-size: 1.08rem; max-width: 560px; margin-top: 18px; }
.hero-cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

.recon {
  margin-top: 52px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 22px;
}
.recon-side { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.55); }
.recon-side.right { text-align: right; }
.recon-side strong { display: block; color: #fff; font-size: 1rem; letter-spacing: 0; text-transform: none; font-family: var(--sans); font-weight: 600; margin-top: 4px; }
.recon-mark {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--brass);
  display: flex; align-items: center; justify-content: center;
  color: var(--brass); font-family: var(--mono); font-size: 0.85rem;
  margin: 0 22px;
  flex-shrink: 0;
}
.recon-line { position: relative; }
.recon-line::before, .recon-line::after { content: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px;
  font-family: var(--sans); font-weight: 600; font-size: 0.92rem;
  text-decoration: none;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, color 0.2s, border-color .2s;
}
.btn-primary { background: var(--brass); color: var(--ink); }
.btn-primary:hover { background: #cf9a4b; }
.btn-ghost { border-color: rgba(255,255,255,0.4); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ink-soft); }
.btn:active { transform: translateY(1px); }

/* ---------- Sections ---------- */
section { padding: 64px 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 34px; flex-wrap: wrap; border-bottom: 1px solid var(--line); padding-bottom: 18px; }

.ledger-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
}
@media (max-width: 780px) { .ledger-split { grid-template-columns: 1fr; } }
.ledger-col { padding: 32px; background: var(--paper-raised); }
.ledger-col + .ledger-col { border-left: 1px solid var(--line); }
@media (max-width: 780px) { .ledger-col + .ledger-col { border-left: none; border-top: 1px solid var(--line); } }
.ledger-col .tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass-deep); }

/* ---------- Post cards ---------- */
.post-list { display: flex; flex-direction: column; gap: 0; }
.post-card { display: grid; grid-template-columns: 90px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
.post-card:last-child { border-bottom: none; }
.post-card .num { font-family: var(--mono); color: var(--slate); font-size: 0.85rem; padding-top: 4px; }
.post-card h3 { margin-bottom: 6px; }
.post-card:hover h3 { color: var(--brass-deep); }
.post-card .meta { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate); margin-bottom: 8px; }
.post-card p { margin: 0; font-size: 0.94rem; }

/* ---------- Article ---------- */
.article { max-width: 720px; margin: 0 auto; padding: 56px 24px; }
.article .meta { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--slate); margin-bottom: 18px; }
.article h1 { margin-bottom: 8px; }
.article h2 { margin-top: 2.2em; margin-bottom: 0.6em; font-size: 1.4rem; }
.article p, .article li { color: var(--ink); font-size: 1.02rem; }
.article strong { color: var(--ink); }
.article blockquote { border-left: 3px solid var(--brass); margin: 1.6em 0; padding: 4px 0 4px 20px; color: var(--ink-70); font-style: italic; }
.article hr { border: none; border-top: 1px solid var(--line); margin: 2.4em 0; }
.article ol { padding-left: 1.2em; }

/* ---------- Form ---------- */
.form-shell { background: var(--ink); color: #fff; padding: 56px 0; }
.form-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
@media (max-width: 860px) { .form-grid { grid-template-columns: 1fr; } }
.form-grid h2 { color: #fff; }
.form-grid .lede { color: rgba(255,255,255,0.65); }
.experts-note { margin-top: 26px; padding: 16px 18px; border: 1px solid rgba(255,255,255,0.18); font-family: var(--mono); font-size: 0.78rem; color: rgba(255,255,255,0.6); line-height: 1.6; }

.card-form { background: var(--paper-raised); padding: 32px; border: 1px solid var(--line); }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--slate); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 12px; font-family: var(--sans); font-size: 0.95rem;
  border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 2px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--brass); outline-offset: 1px; border-color: var(--brass); }
.field textarea { resize: vertical; min-height: 110px; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.84rem; color: var(--ink-70); margin-bottom: 20px; }
.consent input { width: auto; margin-top: 3px; }
.consent a { color: var(--brass-deep); }
.hp { position: absolute; left: -9999px; }
.form-msg { display: none; font-family: var(--mono); font-size: 0.82rem; margin-top: 14px; padding: 10px 12px; }
.form-msg.ok { display: block; background: rgba(62,115,88,0.12); color: var(--sync-green); border: 1px solid var(--sync-green); }
.form-msg.err { display: block; background: rgba(156,59,46,0.1); color: var(--alert); border: 1px solid var(--alert); }

/* ---------- Simple content page ---------- */
.page { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.page h1 { margin-bottom: 8px; }
.page .updated { font-family: var(--mono); font-size: 0.75rem; color: var(--slate); margin-bottom: 30px; }
.page h2 { margin-top: 2em; margin-bottom: 0.5em; font-size: 1.25rem; }
.page ul { padding-left: 1.2em; color: var(--ink-70); }
.page li { margin-bottom: 6px; }

/* ---------- Footer ---------- */
footer.site { background: var(--ink); color: rgba(255,255,255,0.55); padding: 40px 0 28px; margin-top: 40px; border-top: 1px solid rgba(255,255,255,0.1); }
.foot-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; font-size: 0.85rem; }
.foot-links { display: flex; gap: 22px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.foot-links a { text-decoration: none; color: rgba(255,255,255,0.55); }
.foot-links a:hover { color: #fff; }
.foot-note { font-family: var(--mono); font-size: 0.72rem; margin-top: 18px; color: rgba(255,255,255,0.35); }