/* ============================================================================
   Shiva Consultancy Group — "Heritage Tech" Design System
   Derived from the Google Stitch design (project 5728787972259054343).
   Self-contained: brand tokens + components live here so pages never depend
   on a Tailwind config race. Standard Tailwind CDN utilities handle layout.
   ========================================================================== */

:root {
  --navy:        #001F3F;  /* heritage navy — primary surface, headings */
  --navy-deep:   #00152B;  /* darker navy for gradients / depth */
  --ink:         #000A14;  /* near-black ink */
  --gold:        #D4AF37;  /* refined gold — primary accent */
  --gold-leaf:   #E5C76B;  /* lighter gold — hover / on-dark links */
  --slate:       #708090;  /* slate grey — secondary text, hairlines */
  --pearl:       #F5F5F5;  /* pearl white — page background */
  --surface:     #FFFFFF;  /* card surface */
  --surface-low: #F3F3F3;  /* low-emphasis fill */
  --ink-body:    #1A1C1C;  /* body text on light */
  --ink-soft:    #43474E;  /* muted body text */
  --line:        rgba(112,128,144,0.20); /* hairline */
}

/* ----- base ----- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, 'Segoe UI', Arial, sans-serif;
  color: var(--ink-body);
  background: var(--pearl);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
.font-display { font-family: 'Playfair Display', Georgia, serif; }
.material-symbols-outlined { font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24; vertical-align: middle; }

/* ----- brand color utilities ----- */
.bg-navy    { background-color: var(--navy); }
.bg-navy-deep{background-color: var(--navy-deep); }
.bg-ink     { background-color: var(--ink); }
.bg-pearl   { background-color: var(--pearl); }
.bg-surface { background-color: var(--surface); }
.bg-surface-low { background-color: var(--surface-low); }
.bg-gold    { background-color: var(--gold); }
.text-navy  { color: var(--navy); }
.text-gold  { color: var(--gold); }
.text-goldleaf { color: var(--gold-leaf); }
.text-slate { color: var(--slate); }
.text-pearl { color: var(--pearl); }
.text-ink   { color: var(--ink-body); }
.text-soft  { color: var(--ink-soft); }
.border-gold  { border-color: var(--gold); }
.border-slate { border-color: var(--line); }
.fill-gold  { color: var(--gold); }

/* ----- layout shell ----- */
.wrap { max-width: 1280px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
@media (min-width: 768px){ .wrap { padding-left: 4rem; padding-right: 4rem; } }
.section { padding-top: 6rem; padding-bottom: 6rem; }
@media (max-width: 767px){ .section { padding-top: 3.5rem; padding-bottom: 3.5rem; } }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--gold); }
.rule { height: 1px; width: 3rem; background: var(--gold); display: inline-block; }

/* ----- header ----- */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 50;
  background: rgba(245,245,245,0.90); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled { background: #ffffff; box-shadow: 0 6px 24px -12px rgba(0,31,63,.18); }
.site-header.on-dark:not(.scrolled){ background: transparent; border-bottom-color: rgba(255,255,255,.14); }
.header-inner { height: 80px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; flex-direction: column; line-height: 1.05; text-decoration: none; }
.brand b { font-family: 'Playfair Display', serif; font-weight: 700; font-size: 1.15rem; letter-spacing: -.01em; color: var(--navy); }
.brand span { font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--slate); margin-top: 2px; }
.on-dark .brand b { color: #fff; } .on-dark .brand span { color: rgba(255,255,255,.7); }
.nav-links { display: none; align-items: center; gap: 1.4rem; }
@media (min-width: 1024px){ .nav-links { display: flex; } }
.nav-link {
  font-size: 14px; font-weight: 600; letter-spacing: .03em; text-decoration: none;
  color: var(--slate); padding-bottom: 4px; border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease; white-space: nowrap;
}
.nav-link:hover { color: var(--navy); }
.nav-link.active { color: var(--navy); border-bottom-color: var(--gold); }
.on-dark:not(.scrolled) .nav-link { color: rgba(255,255,255,.78); }
.on-dark:not(.scrolled) .nav-link:hover, .on-dark:not(.scrolled) .nav-link.active { color: #fff; }
.menu-btn { display: inline-flex; background: none; border: 0; cursor: pointer; color: var(--navy); }
@media (min-width: 1024px){ .menu-btn { display: none; } }
.on-dark:not(.scrolled) .menu-btn { color: #fff; }
/* the header CTA only appears on wide screens (and on scroll) — never crowd the links */
@media (max-width: 1199px){ #hdrCta { display: none !important; } }
@media (max-width: 560px){
  .brand b { font-size: 1rem; letter-spacing: -.02em; }
  .brand span { font-size: 9px; letter-spacing: .12em; }
}

/* mobile drawer */
.drawer { position: fixed; inset: 0; z-index: 60; display: none; }
.drawer.open { display: block; }
.drawer-bg { position: absolute; inset: 0; background: rgba(0,10,20,.5); }
.drawer-panel { position: absolute; right: 0; top: 0; height: 100%; width: 78%; max-width: 320px;
  background: #fff; padding: 1.5rem; display: flex; flex-direction: column; gap: .25rem; box-shadow: -10px 0 40px rgba(0,0,0,.2); }
.drawer-panel a { padding: .9rem .25rem; font-weight: 600; color: var(--navy); text-decoration: none; border-bottom: 1px solid var(--line); }
.drawer-panel a.active { color: var(--gold); }

/* ----- buttons ----- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-size: 14px; font-weight: 600; letter-spacing: .03em; padding: .85rem 1.6rem; border-radius: 4px;
  cursor: pointer; text-decoration: none; border: 1px solid transparent; transition: all .25s ease; }
.btn-gold  { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-leaf); transform: translateY(-2px); }
.btn-navy  { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--gold); color: var(--navy); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.btn-ghost:hover { background: #fff; color: var(--navy); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-outline:hover { background: var(--surface-low); }

/* ----- cards ----- */
.bento-card { background-color: #fff; border: 1px solid var(--line); transition: all .3s cubic-bezier(.4,0,.2,1); }
.bento-card:hover { box-shadow: 0 14px 36px -14px rgba(0,31,63,.18); transform: translateY(-3px); }
/* brand-background utilities must win over the default white card (equal specificity, so make these compound) */
.bento-card.bg-navy { background-color: var(--navy); }
.bento-card.bg-navy-deep { background-color: var(--navy-deep); }
.bento-card.bg-ink { background-color: var(--ink); }
.bento-card.bg-gold { background-color: var(--gold); }
.bento-card.bg-surface-low { background-color: var(--surface-low); }
.vertical-plumbing { position: relative; }
.vertical-plumbing::before { content:''; position:absolute; left:1.5rem; top:3rem; bottom:2rem; width:1px; background: var(--line); }

/* service / domain card */
.domain-card { position: relative; overflow: hidden; }
.domain-card img { transition: transform .7s ease, filter .7s ease; filter: grayscale(1); }
.domain-card:hover img { transform: scale(1.05); filter: grayscale(0); }
.domain-card .underline-grow { width: 3rem; height: 3px; background: var(--gold); transition: width .3s ease; }
.domain-card:hover .underline-grow { width: 6rem; }

/* feature list check */
.check-li { display: flex; align-items: flex-start; gap: .75rem; }
.check-li .material-symbols-outlined { color: var(--gold); }

/* ----- hero ----- */
.hero { position: relative; min-height: 86vh; display: flex; align-items: center; overflow: hidden; background: var(--navy); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .38; }
.hero-bg::after { content:''; position:absolute; inset:0; background: linear-gradient(90deg, rgba(0,21,43,.92) 0%, rgba(0,21,43,.55) 60%, rgba(0,21,43,.25) 100%); }
.hero-reveal { animation: reveal 1s ease-out forwards; }
@keyframes reveal { from { opacity:0; transform: translateY(20px);} to { opacity:1; transform: translateY(0);} }

/* page hero (inner pages) */
.page-hero { padding-top: 9rem; padding-bottom: 3.5rem; background: var(--pearl); }

/* stat */
.stat-num { font-family: 'Playfair Display', serif; font-weight: 700; color: var(--gold); line-height: 1; }

/* footer */
.site-footer { background: var(--navy); color: rgba(255,255,255,.75); }
.site-footer a { color: rgba(255,255,255,.72); text-decoration: none; transition: color .2s ease; }
.site-footer a:hover { color: #fff; }
.footer-h { color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.social-ic { width: 38px; height: 38px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center; color: rgba(255,255,255,.75); transition: all .2s ease; }
.social-ic:hover { border-color: var(--gold); color: var(--gold); }

/* mobile bottom nav */
.mobile-tabs { position: fixed; bottom: 0; left: 0; width: 100%; z-index: 50; background: #fff;
  border-top: 1px solid var(--line); display: flex; justify-content: space-around; padding: .5rem 0; }
@media (min-width: 900px){ .mobile-tabs { display: none; } }
.mobile-tabs a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 10px; color: var(--slate); text-decoration: none; }
.mobile-tabs a.active { color: var(--navy); }
.mobile-tabs a.active .material-symbols-outlined { font-variation-settings: 'FILL' 1; }
body { padding-bottom: env(safe-area-inset-bottom); }
@media (max-width: 899px){ body.has-tabs { padding-bottom: 4.5rem; } }

/* misc */
.grain-icon { position:absolute; pointer-events:none; user-select:none; }
.divider { border-top: 1px solid var(--line); }
.reveal-up { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal-up.in { opacity: 1; transform: translateY(0); }
input, select, textarea { font-family: inherit; }
.field { width: 100%; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: 4px; background: #fff; font-size: 15px; }
.field:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(0,31,63,.08); }
.form-note { font-size: 13px; }

/* ----- people / profile cards ----- */
.monogram { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--navy); color: var(--gold); font-family: 'Playfair Display', serif; font-weight: 700; font-size: 1.15rem;
  border: 2px solid var(--gold); letter-spacing: .02em; }
.profile-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 1.75rem; height: 100%;
  display: flex; flex-direction: column; transition: all .3s ease; }
.profile-card:hover { box-shadow: 0 16px 40px -18px rgba(0,31,63,.2); transform: translateY(-3px); border-color: rgba(212,175,55,.45); }
.profile-card .role { color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.tag { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .04em; color: var(--ink-soft);
  background: var(--surface-low); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }
.tel-link { color: var(--ink-soft); font-size: 13px; text-decoration: none; }
.tel-link:hover { color: var(--navy); }

/* segment / value tiles */
.tile { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 1.5rem; text-align: center; transition: all .3s ease; }
.tile:hover { box-shadow: 0 14px 36px -16px rgba(0,31,63,.18); transform: translateY(-3px); }

/* big impact stat */
.impact-stat { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 2rem; border-top: 4px solid var(--gold); }
.impact-stat .big { font-family: 'Playfair Display', serif; font-weight: 700; color: var(--navy); font-size: 3rem; line-height: 1; }

/* job opening row */
.job { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.1rem 1.25rem;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; transition: all .25s ease; text-decoration: none; }
.job:hover { border-color: var(--gold); box-shadow: 0 10px 28px -16px rgba(0,31,63,.18); }

/* insight/blog card */
.post-card { display: flex; flex-direction: column; justify-content: space-between; height: 100%;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 1.6rem; text-decoration: none; transition: all .3s ease; }
.post-card:hover { box-shadow: 0 16px 40px -18px rgba(0,31,63,.2); transform: translateY(-3px); }