/* ============================================================
   JVM Global — Shared Stylesheet (styles.css)
   Used by index.html, services.html, contact.html
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:96px}
:root{
  --navy:#0B1F3A;--navy-mid:#12284F;--navy-light:#1A3560;
  --slate:#4A5568;--slate-light:#718096;--slate-bg:#F7F9FC;
  --emerald:#0D9B6C;--emerald-dark:#0A7A55;--emerald-light:#E6F7F2;
  --blue:#185FA5;--blue-bg:#EDF4FF;
  --amber:#854F0B;--amber-bg:#FFF8EC;
  --purple:#534AB7;--purple-bg:#F0EFFD;
  --white:#FFFFFF;--text-muted-navy:#9BAEC8;
  --border-light:rgba(74,85,104,0.15);--border:rgba(11,31,58,0.11);--border-md:rgba(11,31,58,0.18);
  --card-border:rgba(11,31,58,0.12);
  --transition:0.22s cubic-bezier(.4,0,.2,1);
}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--slate-bg);color:var(--navy);line-height:1.7;font-size:1.2rem;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.brand-name,.section-title,.page-hero h1,.cta-band h2{font-family:'Plus Jakarta Sans',system-ui,sans-serif}
a{text-decoration:none;color:inherit}

/* ---------- GLOBAL NAV ---------- */

/* ============ UNIFIED STICKY HEADER SHELL ============ */
.sticky-shell{position:sticky;top:0;z-index:1000;box-shadow:0 4px 6px -1px rgba(0,0,0,0.1);background-color:#0c1a30}
nav{background:var(--navy);border-bottom:2px solid var(--emerald)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:80px}
.nav-brand{display:flex;align-items:center;gap:12px;cursor:pointer}
.nav-logo-img{height:54px;width:auto;max-width:100%;display:block;flex-shrink:0}
.nav-brand-divider{width:1px;height:38px;background:rgba(255,255,255,.18)}
.nav-brand-tag{display:flex;flex-direction:column;gap:1px}
.brand-name{font-size:1.7rem;font-weight:700;color:var(--white);letter-spacing:.01em;line-height:1.05}
.brand-sub{font-family:'Inter',sans-serif;font-weight:500;font-size:0.9rem;letter-spacing:0.5px;color:var(--emerald)}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-link{padding:10px 16px;font-size:1.1rem;color:var(--text-muted-navy);border-radius:6px;transition:var(--transition);cursor:pointer}
.nav-link:hover,.nav-link.active{color:var(--white);background:rgba(255,255,255,.08)}
.nav-link.active{color:var(--emerald)}
.nav-cta{margin-left:14px;padding:12px 26px;font-size:1.1rem;font-weight:600;background:var(--emerald);color:var(--white);border-radius:8px;border:none;cursor:pointer;transition:var(--transition)}
.nav-cta:hover{background:var(--emerald-dark)}

/* ---------- PAGE HERO (inner pages) ---------- */
.page-hero{background:var(--navy);padding:52px 2rem 56px}
.page-hero-inner{max-width:1200px;margin:0 auto}
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:11px;color:rgba(232,237,245,.4);margin-bottom:1.25rem;text-transform:uppercase;letter-spacing:.08em}
.breadcrumb span:last-child{color:var(--emerald)}
.page-hero h1{font-size:3.25rem;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.12;letter-spacing:-0.02em}
.page-hero p{font-size:1.2rem;color:rgba(232,237,245,.7);max-width:760px;line-height:1.7}

/* ---------- BUTTONS ---------- */
.btn-primary{padding:14px 28px;background:var(--emerald);color:var(--white);border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{background:var(--emerald-dark)}
.btn-outline{padding:14px 28px;background:transparent;color:var(--white);border:1px solid rgba(255,255,255,.25);border-radius:8px;font-size:1.1rem;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-outline:hover{border-color:var(--emerald);background:rgba(13,155,108,.08)}

/* ---------- SECTION ---------- */
.section{padding:72px 2rem}
.section-inner{max-width:1200px;margin:0 auto}
.section-tag{font-size:0.85rem;letter-spacing:.12em;text-transform:uppercase;color:var(--emerald);font-weight:600;margin-bottom:.6rem}
.section-title{font-size:2.25rem;font-weight:700;margin-bottom:1rem;line-height:1.22;letter-spacing:-0.01em}
.section-desc{font-size:1.2rem;color:var(--slate);max-width:760px;line-height:1.75;margin-bottom:3rem}

/* ---------- CTA BAND ---------- */
.cta-band{background:var(--navy);padding:64px 2rem;text-align:center}
.cta-band-inner{max-width:800px;margin:0 auto}
.cta-band h2{font-size:2.25rem;font-weight:700;color:var(--white);margin-bottom:14px;line-height:1.22;letter-spacing:-0.01em}
.cta-band p{font-size:1.2rem;color:var(--text-muted-navy);margin-bottom:2rem;line-height:1.7}
.cta-band-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- FOOTER (centered logo + credentials) ---------- */
footer{background:var(--navy-mid);border-top:1px solid rgba(255,255,255,.06);padding:48px 2rem 24px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:3rem;margin-bottom:2.5rem}
.footer-brand p{font-size:12px;color:var(--text-muted-navy);line-height:1.7;margin-top:10px;max-width:260px}
.footer-col h4{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted-navy);margin-bottom:14px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px;font-size:12px;color:rgba(232,237,245,.6);line-height:1.6}
.footer-col a{font-size:12px;color:rgba(232,237,245,.6);transition:var(--transition)}
.footer-col a:hover{color:var(--emerald)}
.footer-logo-block{display:flex;flex-direction:column;align-items:center;gap:14px;padding:8px 0 24px;border-top:1px solid rgba(255,255,255,.06)}
.footer-logo-img{height:66px;width:auto;max-width:80%;opacity:.95}
.footer-cred{text-align:center;line-height:1.8}
.footer-cred .cred-name{font-size:13px;font-weight:600;color:var(--white);letter-spacing:.03em;margin-bottom:4px}
.footer-cred .cred-line{font-size:11.5px;color:var(--text-muted-navy)}
.footer-cred .cred-cin{font-size:11px;color:var(--emerald);letter-spacing:.04em;margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:11px;color:var(--text-muted-navy)}
.footer-badges{display:flex;gap:8px;flex-wrap:wrap}
.f-badge{padding:3px 10px;border:1px solid rgba(255,255,255,.12);border-radius:20px;font-size:10px;color:var(--text-muted-navy);letter-spacing:.06em;text-transform:uppercase}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media (max-width:860px){
  .portfolio-grid{grid-template-columns:1fr!important}
  .diff-grid{grid-template-columns:1fr 1fr!important}
}
@media (max-width:820px){
  .brand-name{font-size:1.45rem}
  .page-hero h1{font-size:2.5rem}
  .section-title,.cta-band h2{font-size:1.95rem}
}
@media (max-width:600px){
  .nav-inner{padding:0 1.25rem;height:64px}
  .nav-logo-img{height:42px}
  .nav-brand-divider,.nav-brand-tag{display:none}
  .nav-links{gap:2px}
  .nav-link{padding:8px 11px;font-size:0.95rem}
  .nav-cta{display:none}
  .section{padding:48px 1.25rem}
  .page-hero{padding:40px 1.25rem 44px}
  .page-hero h1{font-size:2.1rem}
  .section-title,.cta-band h2{font-size:1.7rem}
  .page-hero p,.section-desc,.cta-band p{font-size:1.1rem}
  .diff-grid{grid-template-columns:1fr!important}
  .footer-grid{grid-template-columns:1fr}
  .footer-logo-img{height:54px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .subnav-inner{padding:0 1.25rem}
}

/* ---------- SUBNAV (history controls) ---------- */
.subnav{background:var(--navy-mid);border-bottom:1px solid rgba(255,255,255,.07)}
.subnav-inner{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;gap:10px;height:46px}
.subnav-btn{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);color:rgba(232,237,245,.78);font-family:inherit;font-size:0.95rem;font-weight:500;padding:7px 15px;border-radius:7px;cursor:pointer;transition:var(--transition)}
.subnav-btn:hover{background:rgba(13,155,108,.16);border-color:rgba(13,155,108,.4);color:#fff}
.subnav-btn:active{transform:translateY(1px)}
.subnav-btn svg{width:15px;height:15px}
.subnav-spacer{flex:1}
.subnav-hint{font-size:0.85rem;color:rgba(232,237,245,.4);letter-spacing:.04em}
@media(max-width:600px){.subnav-hint{display:none}.subnav-inner{height:42px}}

/* ============ VIDYARANYA BLUEPRINT (27 sectors + 8 engines) ============ */
.vs-block{max-width:1200px;margin:0 auto;padding:3rem 2rem 1rem}
.vs-sub-label{font-size:0.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--emerald);font-weight:700;margin-bottom:.75rem;display:flex;align-items:center;gap:8px}
.vs-sub-label::before{content:'';width:20px;height:2px;border-radius:2px;background:var(--emerald)}
.vs-heading{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.6rem;font-weight:700;color:#fff;margin-bottom:.5rem;line-height:1.25}
.vs-intro{font-size:1.05rem;color:rgba(232,237,245,.72);line-height:1.75;max-width:880px;margin-bottom:1.75rem}
.vs-intro strong{color:#fff}
/* 27 sector grid */
.sector-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:9px;margin-bottom:1rem}
.sector-btn{display:flex;align-items:center;justify-content:center;text-align:center;gap:6px;padding:11px 10px;background:var(--navy);border:1px solid rgba(13,155,108,.28);border-radius:9px;color:#fff;font-family:'Inter',sans-serif;font-size:0.92rem;font-weight:500;text-transform:lowercase;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1.2}
.sector-btn:hover{background:var(--emerald-dark);border-color:var(--emerald);color:#fff;transform:translateY(-2px);box-shadow:0 6px 18px rgba(13,155,108,.25)}
.sector-btn .sdot{width:6px;height:6px;border-radius:50%;background:var(--emerald);flex-shrink:0}
.sector-btn:hover .sdot{background:#fff}
/* 8 engine pillars */
.engine-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:1rem}
.engine-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:1.25rem;transition:var(--transition)}
.engine-card:hover{border-color:var(--emerald);background:rgba(13,155,108,.08)}
.engine-num{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.5rem;font-weight:800;color:var(--emerald);line-height:1;margin-bottom:8px}
.engine-name{font-size:0.98rem;font-weight:700;color:#fff;margin-bottom:6px;line-height:1.3}
.engine-desc{font-size:0.85rem;color:rgba(232,237,245,.6);line-height:1.55}
.engine-validation{margin-top:14px;background:linear-gradient(135deg,var(--emerald-dark),var(--emerald));border-radius:12px;padding:1.1rem 1.4rem;display:flex;align-items:center;gap:12px}
.engine-validation i{font-size:22px;color:#fff;flex-shrink:0}
.engine-validation .ev-text{font-size:0.95rem;font-weight:600;color:#fff;line-height:1.4;letter-spacing:.01em}
/* sector deep-dive target blocks */
.sector-detail{scroll-margin-top:140px;background:#fff;border:1px solid var(--border);border-left:3px solid var(--emerald);border-radius:12px;padding:1.5rem 1.75rem;margin-bottom:14px}
.sector-detail h4{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.2rem;font-weight:700;color:#0f172a !important;margin-bottom:8px;text-transform:capitalize}
.sector-detail p{font-size:1.02rem;color:#1e293b !important;line-height:1.8}
.sector-detail .sd-back{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:0.85rem;color:var(--emerald-dark);font-weight:600;text-decoration:none}
.sector-detail .sd-back:hover{text-decoration:underline}
.sector-detail-wrap{max-width:1200px;margin:0 auto;padding:1rem 2rem 3rem}
.scroll-target{scroll-margin-top:130px}
/* modal */
.vs-modal-overlay{position:fixed;inset:0;background:rgba(11,31,58,.72);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:2000;padding:1.5rem}
.vs-modal-overlay.open{display:flex}
.vs-modal{background:#fff;border-radius:16px;max-width:480px;width:100%;padding:2.25rem;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.4);position:relative}
.vs-modal .vm-icon{width:60px;height:60px;border-radius:50%;background:var(--emerald-light);display:flex;align-items:center;justify-content:center;margin:0 auto 1.25rem}
.vs-modal .vm-icon i{font-size:28px;color:var(--emerald-dark)}
.vs-modal h3{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.4rem;font-weight:700;color:var(--navy);margin-bottom:.75rem}
.vs-modal p{font-size:1rem;color:var(--slate);line-height:1.7;margin-bottom:1.5rem}
.vs-modal .vm-close{background:var(--emerald);color:#fff;border:none;border-radius:8px;padding:12px 28px;font-family:inherit;font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition)}
.vs-modal .vm-close:hover{background:var(--emerald-dark)}
.vs-modal .vm-x{position:absolute;top:14px;right:16px;background:none;border:none;font-size:22px;color:var(--slate-light);cursor:pointer;line-height:1}
@media(max-width:900px){.engine-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.engine-grid{grid-template-columns:1fr}.sector-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.vs-block,.sector-detail-wrap{padding-left:1.25rem;padding-right:1.25rem}}
.hero-stats a.stat-item{text-decoration:none;cursor:pointer}
.hero-stats a.stat-item:hover{border-color:var(--emerald)}

/* ============ PORTFOLIO SERVICE-TAB CLICK-TO-EXPAND ============ */
.svctab-wrap{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.svctab{border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff;transition:var(--transition)}
.svctab.open{border-color:var(--emerald);box-shadow:0 4px 16px rgba(13,155,108,.10)}
.svctab-head{display:flex;align-items:center;gap:11px;padding:13px 16px;cursor:pointer;user-select:none}
.svctab-head:hover{background:var(--slate-bg)}
.svctab-dot{width:9px;height:9px;border-radius:50%;background:var(--emerald);flex-shrink:0}
.svctab-name{flex:1;font-size:0.98rem;font-weight:600;color:#1e293b;line-height:1.3}
.svctab-plus{width:26px;height:26px;border-radius:50%;background:var(--slate-bg);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--slate);flex-shrink:0;transition:var(--transition)}
.svctab.open .svctab-plus{background:var(--emerald);color:#fff;transform:rotate(45deg)}
.svctab-body{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1)}
.svctab-copy{padding:0 16px 15px 36px;font-size:0.96rem;color:#1e293b;line-height:1.7}
@media(max-width:600px){.svctab-copy{padding-left:16px}}