/* ==========================================================================
   Surya Rapaka System — shared stylesheet for the inner pages.
   The homepage carries its own inline CSS; the header, footer, buttons and
   colour tokens here are kept deliberately identical to it so the whole site
   reads as one design.
   ========================================================================== */

:root{
  color-scheme: light;
  --blue:#2563eb; --blue-dark:#1d4ed8; --blue-deep:#1e3a8a;
  --navy:#0a192f;
  --green:#16a34a; --green-dark:#15803d;
  --amber:#f59e0b;
  --ink:#0f172a; --body:#475569; --muted:#64748b; --faint:#94a3b8;
  --line:#e2e8f0; --line-soft:#f1f5f9; --wash:#f8fafc;
  --shadow-sm:0 6px 18px rgba(15,23,42,.05);
  --shadow-md:0 14px 40px -18px rgba(15,23,42,.22);
  --shadow-lg:0 28px 70px -30px rgba(15,23,42,.38);
  --r:14px; --r-lg:22px; --r-xl:32px;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --display:'Plus Jakarta Sans','Inter',-apple-system,'Segoe UI',Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;
     -webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:#dbeafe;color:#1e3a8a}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);margin:0;letter-spacing:-.02em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0}
.shell{max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);
         white-space:nowrap;border:0}

/* skip link — keyboard users land on the content, not the nav, every time */
.skip{position:absolute;left:-9999px;top:0;z-index:300;background:var(--blue);color:#fff;
      padding:12px 18px;border-radius:0 0 10px 0;font-weight:700}
.skip:focus{left:0;text-decoration:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:15px;
     padding:13px 24px;border-radius:10px;border:1px solid transparent;cursor:pointer;position:relative;
     overflow:hidden;font-family:var(--sans);
     transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease}
.btn:hover{transform:translateY(-2px);text-decoration:none}
.btn::after{content:"";position:absolute;top:0;left:-80%;width:40%;height:100%;pointer-events:none;
            background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
            transform:skewX(-20deg);transition:left .6s ease}
.btn:hover::after{left:130%}
.btn-green{background:var(--green);color:#fff;box-shadow:0 12px 26px -12px rgba(22,163,74,.65)}
.btn-green:hover{background:var(--green-dark);color:#fff}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 12px 26px -12px rgba(37,99,235,.6)}
.btn-blue:hover{background:var(--blue-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--blue);border-color:#bfdbfe}
.btn-ghost:hover{background:#eff6ff}
.btn-sm{padding:10px 18px;font-size:14px;white-space:nowrap}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
             backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
             border-bottom:1px solid var(--line);box-shadow:0 4px 20px rgba(15,23,42,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:flex;align-items:center}
.brand img{height:48px;width:auto;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:#475569;font-size:14.5px;font-weight:600;padding:6px 0;white-space:nowrap;position:relative}
.nav-links a:hover{color:var(--blue);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--blue)}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
                                         background:var(--blue);border-radius:2px}
.nav-actions{display:flex;align-items:center;gap:10px}
.burger{display:none;background:none;border:0;padding:8px;color:var(--ink);cursor:pointer}
.mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
             padding:16px 20px 24px}
.mobile-menu.open{display:block}
.mobile-menu a.m-link{display:block;padding:12px 0;font-weight:600;color:#334155;
                      border-bottom:1px solid var(--line-soft)}
.mobile-menu a.m-link:hover{text-decoration:none;color:var(--blue)}
.mobile-menu .btn{width:100%;margin-top:12px}

/* ---------- page hero ---------- */
.page-hero{background:linear-gradient(170deg,#f8fafc 0%,#eef4ff 55%,#fff 100%);
           border-bottom:1px solid var(--line);padding:64px 0 58px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-260px;right:-200px;width:640px;height:640px;
                   border-radius:50%;pointer-events:none;
                   background:radial-gradient(circle,rgba(37,99,235,.12) 0%,rgba(37,99,235,0) 68%)}
.page-hero .shell{position:relative;z-index:2}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px;font-weight:600}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue)}
.crumbs span{margin:0 7px;color:var(--faint)}
.pill{display:inline-flex;align-items:center;gap:8px;background:#eff6ff;color:var(--blue-dark);
      border:1px solid #dbeafe;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:700;
      margin-bottom:18px}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--green);
           box-shadow:0 0 0 4px rgba(22,163,74,.16)}
.page-hero h1{font-size:clamp(32px,4.6vw,52px);font-weight:800;line-height:1.08;margin-bottom:18px;
              max-width:16ch}
.page-hero .lede{font-size:18px;color:var(--body);max-width:66ch;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}

/* ---------- prose ---------- */
main{display:block}
.prose{padding:66px 0}
.prose-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:56px;align-items:start}
.prose h2{font-size:clamp(23px,2.8vw,32px);font-weight:800;margin:0 0 16px}
.prose h2:not(:first-child){margin-top:52px}
.prose h3{font-size:19px;font-weight:800;margin:30px 0 10px}
.prose p{margin:0 0 16px;color:var(--body);font-size:16.5px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:700}
.prose .lead{font-size:18px;color:#334155}
.prose ul.ticks{display:flex;flex-direction:column;gap:12px;margin:0 0 20px}
.prose ul.ticks li{display:flex;gap:11px;align-items:flex-start;font-size:16px;color:var(--body)}
.prose ul.ticks svg{color:var(--green);flex:none;margin-top:5px}
.prose ol.steps-list{counter-reset:st;display:flex;flex-direction:column;gap:22px;margin:0 0 20px;list-style:none}
.prose ol.steps-list li{counter-increment:st;position:relative;padding-left:52px}
.prose ol.steps-list li::before{content:counter(st);position:absolute;left:0;top:-2px;width:34px;height:34px;
                                border-radius:50%;background:#eff6ff;color:var(--blue);font-family:var(--display);
                                font-weight:800;font-size:15px;display:flex;align-items:center;
                                justify-content:center;border:1px solid #dbeafe}
.prose ol.steps-list h3{margin:0 0 6px}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin:26px 0 8px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
      transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#bfdbfe}
.card .card-ico{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;
                justify-content:center;margin-bottom:16px;border:1px solid;flex:none}
.card h3{margin:0 0 8px;font-size:17.5px}
.card p{margin:0;font-size:14.5px;color:var(--body);line-height:1.62}
.c-blue{background:#eff6ff;color:#2563eb;border-color:#dbeafe}
.c-indigo{background:#eef2ff;color:#4f46e5;border-color:#e0e7ff}
.c-emerald{background:#ecfdf5;color:#059669;border-color:#d1fae5}
.c-amber{background:#fffbeb;color:#d97706;border-color:#fde68a}
.c-violet{background:#f5f3ff;color:#7c3aed;border-color:#ede9fe}
.c-rose{background:#fff1f2;color:#e11d48;border-color:#ffe4e6}
.c-cyan{background:#ecfeff;color:#0891b2;border-color:#cffafe}
.c-slate{background:#f1f5f9;color:#334155;border-color:#e2e8f0}
.c-orange{background:#fff7ed;color:#ea580c;border-color:#fed7aa}

/* ---------- sidebar ---------- */
.side{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px}
.side-box{background:var(--wash);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}
.side-box h2{font-size:15px;font-weight:800;margin:0 0 14px;letter-spacing:.02em}
.side-box p{font-size:14px;color:var(--body);margin:0 0 14px;line-height:1.6}
.side-box .btn{width:100%}
.side-list{display:flex;flex-direction:column;gap:10px}
.side-list a{font-size:14.5px;font-weight:600;color:#475569;display:flex;align-items:center;gap:8px}
.side-list a:hover{color:var(--blue);text-decoration:none}
.side-list svg{color:var(--faint);flex:none}
.side-box.accent{background:linear-gradient(150deg,var(--blue-dark),var(--blue-deep));border:0;color:#fff}
.side-box.accent h2{color:#fff}
.side-box.accent p{color:#bfdbfe}
.side-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px}
.side-contact a,.side-contact span{color:#fff;font-weight:600;display:block}
.side-contact small{display:block;color:#93c5fd;font-weight:500;font-size:12.5px;margin-top:2px}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:0;margin-top:8px}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq details[open] summary{color:var(--blue)}
.faq summary{font-family:var(--display);font-weight:800;font-size:16.5px;cursor:pointer;list-style:none;
             display:flex;justify-content:space-between;gap:16px;align-items:flex-start;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:11px;height:11px;margin-top:6px;
                    border-right:2px solid currentColor;border-bottom:2px solid currentColor;
                    transform:rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq p{margin:12px 0 0;color:var(--body);font-size:15.5px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--wash);border-top:1px solid var(--line);padding:60px 0}
.cta-inner{background:linear-gradient(120deg,var(--blue-dark),var(--blue-deep));border-radius:var(--r-xl);
           padding:44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;
           flex-wrap:wrap;position:relative;overflow:hidden}
.cta-inner::after{content:"";position:absolute;top:-140px;right:-80px;width:340px;height:340px;
                  border-radius:50%;background:rgba(255,255,255,.07)}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,32px);font-weight:800;margin:0 0 10px}
.cta-inner p{color:#bfdbfe;font-size:16px;margin:0}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
.cta-inner .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
.cta-inner .btn-ghost:hover{background:rgba(255,255,255,.2)}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#cbd5e1;padding:64px 0 26px;border-top:1px solid rgba(37,99,235,.35)}
.foot-grid{display:grid;grid-template-columns:2.1fr 1fr 1fr 1.5fr;gap:44px;margin-bottom:46px}
.foot-brand img{height:52px;background:rgba(255,255,255,.08);padding:5px;border-radius:9px;margin-bottom:20px}
.foot-brand p{color:#94a3b8;font-size:14px;line-height:1.72;max-width:380px;margin:0 0 22px}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px}
.foot-tags i{font-style:normal;font-size:11.5px;font-weight:700;color:#93c5fd;background:rgba(37,99,235,.14);
             border:1px solid rgba(96,165,250,.24);padding:5px 11px;border-radius:999px}
.site-footer h2{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.1em;margin:0 0 20px;
                font-weight:800;font-family:var(--display)}
.site-footer li{margin-bottom:11px;list-style:none}
.site-footer li a,.site-footer address p{color:#94a3b8;font-size:14px;font-weight:600;font-style:normal}
.site-footer li a:hover{color:#60a5fa;text-decoration:none}
.site-footer address{font-style:normal}
.site-footer address p{margin:0 0 11px}
.site-footer address a{color:#94a3b8}
.site-footer address a:hover{color:#60a5fa}
.foot-bottom{border-top:1px solid rgba(148,163,184,.2);padding-top:24px;display:flex;
             justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#64748b;
             font-weight:600}
.foot-bottom a{color:#64748b}
.foot-bottom a:hover{color:#fff}
.foot-links{display:flex;gap:22px;flex-wrap:wrap}

/* ---------- back to top ---------- */
.totop{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;border:0;
       background:var(--blue);color:#fff;cursor:pointer;display:flex;align-items:center;
       justify-content:center;box-shadow:0 14px 30px -12px rgba(37,99,235,.75);z-index:150;
       opacity:0;visibility:hidden;transform:translateY(14px);
       transition:opacity .3s,transform .3s,visibility .3s,background .2s}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--blue-dark)}

/* ---------- reveal (only once JS confirms it is running) ---------- */
.js .rv{opacity:0;transform:translateY(20px);
        transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  .btn::after{display:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .prose-grid{grid-template-columns:1fr;gap:44px}
  .side{position:static}
}
@media (max-width:940px){
  .nav-links,.nav-actions{display:none}
  .burger{display:block}
  .page-hero{padding:48px 0 44px}
  .prose{padding:52px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:680px){
  .page-hero h1{max-width:none}
  .cta-inner{padding:32px 24px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .totop{right:14px;bottom:14px;width:42px;height:42px}
}