/* ============================================================
   O C Mathew And Associates LLP — Design System
   Modern premium: navy + gold, Fraunces / Inter
   ============================================================ */

:root {
  /* Brand palette */
  --ink:        #0B1B34;  /* deep navy — headings, dark sections */
  --navy-900:   #0B1B34;
  --navy-800:   #12294D;
  --navy-700:   #1B3A66;
  --navy-600:   #24507F;

  --gold:       #C6A15B;  /* refined gold accent */
  --gold-soft:  #D9BE86;
  --gold-deep:  #A07E37;  /* meets contrast on light bg for text */

  --emerald:    #1F7A5C;  /* finance-positive cue */
  --emerald-soft:#E6F1EC;

  --ivory:      #FBFAF7;  /* page background (warm off-white) */
  --parchment:  #F4F1E9;  /* alt section background */
  --surface:    #FFFFFF;

  --text:       #16233B;  /* body text on light */
  --muted:      #5B6472;  /* secondary text */
  --muted-2:    #8A93A3;
  --border:     #E7E3D8;  /* warm hairline */
  --border-cool:#E5E7EB;

  --danger:     #C0392B;

  /* Typography */
  --font-serif: "Fraunces", "EB Garamond", Georgia, "Times New Roman", serif;
  --font-sans:  "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Spacing rhythm (density ~4/10, standard-spacious) */
  --space-section: clamp(4.5rem, 9vw, 8.5rem);

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(11,27,52,.06), 0 1px 1px rgba(11,27,52,.04);
  --shadow-md: 0 8px 24px -12px rgba(11,27,52,.18);
  --shadow-lg: 0 24px 60px -24px rgba(11,27,52,.28);
  --shadow-gold: 0 16px 40px -18px rgba(198,161,91,.45);

  --radius: 14px;
  --radius-lg: 22px;

  --ease-out: cubic-bezier(.22,.61,.36,1);
  --ease-in-out: cubic-bezier(.65,.05,.36,1);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0;
  font-optical-sizing: auto;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

::selection { background: var(--gold); color: #fff; }

:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.container-narrow { max-width: 880px; }

.section { padding-block: var(--space-section); }
.section-tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* Dark section */
.section-dark {
  background: var(--ink);
  color: #E7EBF2;
  position: relative;
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-parchment { background: var(--parchment); }

/* ---------- Typography helpers ---------- */
.display {
  font-size: clamp(2.6rem, 6.2vw, 4.7rem);
  line-height: 1.02;
}
.h2 { font-size: clamp(2rem, 4vw, 3rem); }
.h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.32rem);
  line-height: 1.6;
  color: var(--muted);
  max-width: 60ch;
}
.section-dark .lead { color: #B7C1D4; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--gold);
}
.section-dark .eyebrow { color: var(--gold-soft); }

.text-gold { color: var(--gold-deep); }
.serif-em { font-family: var(--font-serif); font-style: italic; font-weight: 400; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  padding: .95rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease-out), background .25s, color .25s, box-shadow .25s, border-color .25s;
  min-height: 48px;
  will-change: transform;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover { background: var(--navy-700); box-shadow: var(--shadow-md); transform: translateY(-2px); }

.btn-gold {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  color: #2A2109;
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover { transform: translateY(-2px); filter: brightness(1.04); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--ink); background: rgba(11,27,52,.03); }

.section-dark .btn-ghost { color: #fff; border-color: rgba(255,255,255,.28); }
.section-dark .btn-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.55); }

.btn-link {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 600; color: var(--gold-deep);
}
.btn-link svg { transition: transform .3s var(--ease-out); }
.btn-link:hover svg { transform: translateX(5px); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  z-index: 100;
  transition: background .4s var(--ease-out), box-shadow .4s, backdrop-filter .4s;
}
.site-header.scrolled {
  background: rgba(251,250,247,.85);
  backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--border), var(--shadow-sm);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 78px;
  transition: height .4s var(--ease-out);
}
.site-header.scrolled .nav { height: 66px; }

.brand { display: flex; align-items: center; gap: .7rem; }
.brand-mark { height: 46px; width: auto; flex: none; }
/* White tile so the full-colour logo stays legible on the dark footer */
.brand-chip { background: #fff; padding: 6px 10px; border-radius: 10px; box-sizing: content-box; }
@media (max-width: 400px) { .brand-mark { height: 40px; } .brand-name { font-size: 1rem; } }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-family: var(--font-serif); font-weight: 600; font-size: 1.12rem; color: var(--ink); letter-spacing: -.01em; }
.brand-sub { font-size: .62rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted-2); font-weight: 600; }

.nav-links { display: flex; align-items: center; gap: .35rem; }
.nav-links a {
  position: relative;
  padding: .55rem .9rem;
  font-size: .93rem; font-weight: 500; color: var(--text);
  border-radius: 8px;
  transition: color .2s;
}
.nav-links a::after {
  content: ""; position: absolute; left: .9rem; right: .9rem; bottom: .3rem;
  height: 1.5px; background: var(--gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--ink); }

.nav-cta { display: flex; align-items: center; gap: .75rem; }

.nav-toggle {
  display: none;
  width: 46px; height: 46px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 20px; height: 2px; background: var(--ink);
  transition: transform .3s var(--ease-out), opacity .2s;
  position: relative;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after  { position: absolute; top: 6px; }
body.menu-open .nav-toggle span { background: transparent; }
body.menu-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
body.menu-open .nav-toggle span::after  { transform: translateY(-6px) rotate(-45deg); }

/* Mobile drawer */
.mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--ivory);
  padding: 100px clamp(1.5rem,6vw,3rem) 3rem;
  display: flex; flex-direction: column; gap: .25rem;
  transform: translateY(-100%);
  transition: transform .5s var(--ease-in-out);
  visibility: hidden;
}
body.menu-open .mobile-menu { transform: translateY(0); visibility: visible; }
.mobile-menu a {
  font-family: var(--font-serif); font-size: 1.7rem; color: var(--ink);
  padding: .7rem 0; border-bottom: 1px solid var(--border);
}
.mobile-menu .btn { margin-top: 1.5rem; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform .4s var(--ease-out), box-shadow .4s, border-color .4s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--gold-soft); }

.icon-badge {
  width: 54px; height: 54px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--emerald-soft); color: var(--emerald);
  margin-bottom: 1.4rem;
}
.icon-badge.gold { background: rgba(198,161,91,.14); color: var(--gold-deep); }
.icon-badge.navy { background: rgba(18,41,77,.08); color: var(--navy-700); }
.icon-badge svg { width: 26px; height: 26px; }

/* ---------- Utility ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-sm { gap: .75rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.center { text-align: center; }
.mx-auto { margin-inline: auto; }
.divider { height: 1px; background: var(--border); border: 0; margin: 0; }

.tag {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .78rem; font-weight: 600; letter-spacing: .04em;
  padding: .35rem .75rem; border-radius: 999px;
  background: var(--parchment); color: var(--muted);
  border: 1px solid var(--border);
}

/* ---------- Stats ---------- */
.stat-num {
  font-family: var(--font-serif); font-weight: 500;
  font-size: clamp(2.6rem, 5vw, 3.6rem); line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.section-dark .stat-num { color: #fff; }
.stat-num .suffix { color: var(--gold-deep); }
.section-dark .stat-num .suffix { color: var(--gold-soft); }
.stat-label { color: var(--muted); font-size: .95rem; margin-top: .4rem; }
.section-dark .stat-label { color: #A9B4C7; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #AEB9CC; padding-block: 4.5rem 2rem; }
.site-footer a { color: #C7D0DF; transition: color .2s; }
.site-footer a:hover { color: var(--gold-soft); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 2.5rem; }
.footer-col h4 { color: #fff; font-family: var(--font-sans); font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1.2rem; font-weight: 600; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .7rem; }
.footer-bottom {
  margin-top: 3.5rem; padding-top: 1.75rem; border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  font-size: .85rem; color: #7C89A0;
}

/* ---------- Reveal animations (GSAP-driven; CSS fallback) ---------- */
.reveal { opacity: 0; transform: translateY(24px); }
.no-js .reveal, .reduced-motion .reveal { opacity: 1; transform: none; }

/* Page-load wipe overlay — pure CSS so it ALWAYS clears itself,
   even if JavaScript/GSAP never loads or stalls. */
.page-wipe {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--ink);
  transform-origin: bottom;
  pointer-events: none;
  will-change: transform;
  animation: wipeAway .7s cubic-bezier(.65,.05,.36,1) .05s forwards;
}
@keyframes wipeAway {
  from { transform: scaleY(1); }
  to   { transform: scaleY(0); }
}
.reduced-motion .page-wipe,
.no-js .page-wipe { display: none; }
@media (prefers-reduced-motion: reduce) { .page-wipe { display: none; } }

/* Hero accent shapes — radial gradient gives the soft glow without
   an expensive blur filter (keeps scroll smooth on low-end devices). */
.hero-orb {
  position: absolute; border-radius: 50%;
  opacity: .5; pointer-events: none;
  will-change: transform;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (min-width: 861px) and (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* Reduced motion global */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   Shared components for the Services directory + detail pages
   ============================================================ */

/* Premium service tiles (directory) — 4 across, 2 rows */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.svc-tile {
  position: relative; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 2rem 1.8rem 1.6rem;
  text-decoration: none; overflow: hidden;
  transition: transform .3s var(--ease-out), box-shadow .3s, background .3s, border-color .3s;
}
.svc-tile::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--navy-700), var(--gold));
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.svc-tile:hover, .svc-tile:focus-visible {
  transform: translateY(-8px); box-shadow: var(--shadow-lg);
  background: #F8FBFF; border-color: #D6E4F5;
}
.svc-tile:hover::before, .svc-tile:focus-visible::before { transform: scaleX(1); }
.svc-tile-icon {
  width: 60px; height: 60px; border-radius: 15px; display: grid; place-items: center;
  background: rgba(18,41,77,.06); color: var(--navy-700); margin-bottom: 1.35rem;
  transition: transform .3s var(--ease-out), background .3s;
}
.svc-tile:hover .svc-tile-icon { transform: scale(1.09); background: rgba(18,41,77,.1); }
.svc-tile-icon svg { width: 30px; height: 30px; }
.svc-tile h3 { font-family: var(--font-serif); font-size: 1.3rem; color: var(--ink); line-height: 1.2; }
.svc-tile p { color: var(--muted); margin-top: .6rem; font-size: .95rem; line-height: 1.55; flex: 1; }
.svc-tile-cta {
  display: inline-flex; align-items: center; gap: .4rem; margin-top: 1.4rem;
  color: var(--navy-700); font-weight: 600; font-size: .9rem; letter-spacing: .01em;
  transition: color .3s;
}
.svc-tile-cta svg { transition: transform .3s var(--ease-out); }
.svc-tile:hover .svc-tile-cta { color: var(--gold-deep); }
.svc-tile:hover .svc-tile-cta svg { transform: translateX(5px); }
@media (max-width: 1024px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .svc-grid { grid-template-columns: 1fr; } }

/* Chips */
.chip { font-size:.8rem; font-weight:500; color:var(--muted); background:var(--parchment); border:1px solid var(--border); border-radius:999px; padding:.4rem .85rem; display:inline-block; }
.chips { display:flex; flex-wrap:wrap; gap:.5rem; }

/* Callout */
.callout { background:var(--parchment); border-left:3px solid var(--gold); border-radius:12px; padding:1.3rem 1.5rem; color:var(--text); }
.callout strong { color:var(--ink); }

/* Accordion (FAQ / industries) */
details.acc { border-top:1px solid var(--border); }
details.acc summary { cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:1.2rem 0; font-family:var(--font-serif); font-size:1.15rem; color:var(--ink); }
details.acc summary::-webkit-details-marker { display:none; }
details.acc summary .plus { color:var(--gold-deep); font-size:1.4rem; transition:transform .3s var(--ease-out); flex:none; }
details.acc[open] summary .plus { transform:rotate(45deg); }
details.acc .acc-body { padding:0 0 1.4rem; color:var(--muted); line-height:1.65; }

/* Spec columns (who / problems / benefits / deliverables) */
.spec-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1.5rem; }
.spec-card { background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:1.7rem; }
.spec-card h3 { font-family:var(--font-sans); font-size:.78rem; letter-spacing:.14em; text-transform:uppercase; color:var(--gold-deep); margin:0 0 1rem; }
.spec-card ul { list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.7rem; color:var(--muted); }
.spec-card li { display:flex; gap:.6rem; align-items:flex-start; }
.spec-card li svg { flex:none; margin-top:3px; color:var(--emerald); width:18px; height:18px; }
@media (max-width:720px){ .spec-grid{ grid-template-columns:1fr; } }

/* Process steps */
.proc { display:grid; gap:1.1rem; }
.proc-step { display:grid; grid-template-columns:auto 1fr; gap:1.3rem; align-items:start; }
.proc-num { font-family:var(--font-serif); font-size:1.4rem; color:#2A2109; background:linear-gradient(180deg,var(--gold-soft),var(--gold)); width:54px; height:54px; border-radius:15px; display:grid; place-items:center; flex:none; box-shadow:var(--shadow-gold); }
.proc-step h3 { font-size:1.2rem; }

/* Breadcrumb */
.crumb { font-size:.85rem; color:var(--muted-2); display:flex; gap:.5rem; align-items:center; flex-wrap:wrap; }
.crumb a { color:var(--muted); }
.crumb a:hover { color:var(--gold-deep); }
.crumb .sep { color:var(--border); }