/* TechSanskriti Solutions – shared styles */
:root {
  --river: #0f4c5c;      /* deep Ganga teal – primary */
  --river-deep: #0a3440;
  --river-soft: #e3eff0;
  --marigold: #e8a317;   /* genda-phool accent */
  --marigold-soft: #fdf3dc;
  --paper: #f8fbfa;
  --card: #ffffff;
  --ink: #13232b;
  --mist: #dde7e6;
  --muted: #55686d;
  --chat-bg: #e9efe9;
  --bubble-out: #d9f4d0;
  --wa: #1fa855;
  --on-river: #ffffff;
  --radius-s: 8px;
  --radius-l: 18px;
  --shadow: 0 18px 40px -24px rgba(10, 52, 64, .35);
  --measure: 66ch;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0d1a1f; --card: #12242a; --ink: #e6efee; --mist: #1f3238; --muted: #9fb2b5;
    --river: #5fb3c4; --river-deep: #0f4c5c; --river-soft: #15303a; --marigold-soft: #2d2410;
    --chat-bg: #142429; --bubble-out: #1d3b2a; --on-river: #06161b;
    --shadow: 0 18px 40px -24px rgba(0, 0, 0, .7);
  }
}
:root[data-theme="dark"] {
  --paper: #0d1a1f; --card: #12242a; --ink: #e6efee; --mist: #1f3238; --muted: #9fb2b5;
  --river: #5fb3c4; --river-deep: #0f4c5c; --river-soft: #15303a; --marigold-soft: #2d2410;
  --chat-bg: #142429; --bubble-out: #1d3b2a; --on-river: #06161b;
  --shadow: 0 18px 40px -24px rgba(0, 0, 0, .7);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Mukta", system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 18px; line-height: 1.6;
}
a { color: var(--river); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--marigold); outline-offset: 3px; border-radius: 4px;
}
img, svg { max-width: 100%; }
h1, h2, h3 { text-wrap: balance; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--river); color: var(--on-river); padding: 8px 14px; border-radius: 6px; z-index: 100; }
.skip:focus { left: 8px; }
.eyebrow { display: inline-block; font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--marigold); margin: 0 0 10px; }

/* header */
.site-head { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--mist); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: -0.2px; line-height: 1.1; }
.brand svg { flex: none; }
.brand small { display: block; font-weight: 500; font-size: 12px; color: var(--muted); letter-spacing: .02em; }
.main-nav { display: flex; align-items: center; gap: 22px; font-size: 16px; }
.main-nav a { color: var(--muted); text-decoration: none; font-weight: 500; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--ink); }
.main-nav .btn { color: var(--on-river); padding: 9px 16px; font-size: 15px; }
.menu-btn { display: none; background: none; border: 1px solid var(--mist); border-radius: var(--radius-s); width: 44px; height: 44px; color: var(--ink); cursor: pointer; }
.menu-btn svg { display: block; margin: auto; }

/* buttons */
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border-radius: var(--radius-s);
  font: inherit; font-weight: 700; font-size: 17px; line-height: 1.2; text-decoration: none; border: 2px solid var(--river); cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.primary { background: var(--river); color: var(--on-river); }
.btn.plain { color: var(--river); background: transparent; }
.btn.wa { background: var(--wa); border-color: var(--wa); color: #fff; }
.btn svg { flex: none; }

/* hero */
.hero { padding: 64px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.2vw, 62px); line-height: 1.05; font-weight: 800; letter-spacing: -1.2px; margin: 0 0 20px; max-width: 15ch; }
.hero .lede { font-size: 21px; color: var(--muted); max-width: 48ch; margin: 0 0 18px; }
.hero .hi { font-size: 19px; color: var(--river); margin: 0 0 28px; font-weight: 500; }
.trust { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 15px; color: var(--muted); }
.trust li { display: flex; align-items: center; gap: 7px; }
.trust li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--marigold); }

.page-hero { padding: 48px 0 40px; }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 52px); line-height: 1.08; font-weight: 800; letter-spacing: -1px; margin: 0 0 16px; max-width: 22ch; }
.page-hero .lede { font-size: 20px; color: var(--muted); max-width: 60ch; margin: 0 0 26px; }
.crumbs { font-size: 14px; color: var(--muted); margin: 0 0 18px; }
.crumbs a { color: var(--muted); }
.crumbs ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs li + li::before { content: "/"; margin-right: 6px; opacity: .6; }

/* phone chat */
.phone { justify-self: center; width: 100%; max-width: 360px; border-radius: 34px; padding: 12px; background: var(--river-deep); box-shadow: 0 30px 60px -30px rgba(10, 52, 64, .55); }
.screen { border-radius: 24px; overflow: hidden; background: var(--chat-bg); }
.chat-head { background: #0f4c5c; color: #fff; padding: 12px 16px; display: flex; align-items: center; gap: 10px; }
.chat-head .av { width: 34px; height: 34px; border-radius: 50%; background: var(--marigold); display: grid; place-items: center; font-weight: 800; color: #0a3440; }
.chat-head b { display: block; font-size: 15px; line-height: 1.2; }
.chat-head small { font-size: 12px; opacity: .8; }
.thread { padding: 14px 12px 18px; display: flex; flex-direction: column; gap: 8px; min-height: 430px; font-size: 14.5px; line-height: 1.4; }
.msg { max-width: 84%; padding: 7px 10px; border-radius: 10px; background: var(--card); box-shadow: 0 1px 0 rgba(0,0,0,.06); }
.msg.me { align-self: flex-end; background: var(--bubble-out); }
.msg .opt { display: block; margin-top: 6px; padding: 5px 8px; border-top: 1px solid var(--mist); color: var(--river); text-align: center; font-weight: 600; }
.msg.paid { border-left: 3px solid #2f9e5b; }
.chat-anim .msg { opacity: 0; transform: translateY(6px); animation: pop .35s ease forwards; }
.chat-anim .msg:nth-child(1) { animation-delay: .3s; }
.chat-anim .msg:nth-child(2) { animation-delay: 1.1s; }
.chat-anim .msg:nth-child(3) { animation-delay: 1.9s; }
.chat-anim .msg:nth-child(4) { animation-delay: 2.7s; }
.chat-anim .msg:nth-child(5) { animation-delay: 3.5s; }
.chat-anim .msg:nth-child(6) { animation-delay: 4.4s; }
@keyframes pop { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .chat-anim .msg { animation: none; opacity: 1; transform: none; } }

/* sections */
section.block { padding: 72px 0; border-top: 1px solid var(--mist); }
section.block.tint { background: var(--river-soft); border-top: 0; }
section.block h2 { font-size: clamp(28px, 3.4vw, 40px); line-height: 1.15; margin: 0 0 14px; font-weight: 800; letter-spacing: -0.5px; }
section.block .intro { color: var(--muted); max-width: var(--measure); margin: 0 0 36px; font-size: 19px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--mist); border-radius: var(--radius-l); padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
a.card { text-decoration: none; color: inherit; }
a.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--river); }
.card h3 { font-size: 22px; margin: 0; line-height: 1.25; }
.card p { margin: 0; color: var(--muted); font-size: 17px; }
.card .ico { width: 48px; height: 48px; border-radius: 12px; background: var(--river-soft); color: var(--river); display: grid; place-items: center; }
.card .more { margin-top: auto; padding-top: 8px; font-weight: 700; color: var(--river); }
.card.featured { border: 2px solid var(--river); }
.tag { align-self: flex-start; font-size: 13px; font-weight: 700; padding: 3px 10px; border-radius: 99px; background: var(--marigold-soft); color: #8a5a00; }
:root[data-theme="dark"] .tag { color: var(--marigold); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .tag { color: var(--marigold); } }
.ticks { list-style: none; padding: 0; margin: 4px 0 0; display: grid; gap: 6px; font-size: 16px; }
.ticks li { padding-left: 26px; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: .45em; width: 14px; height: 8px; border-left: 2.5px solid var(--wa); border-bottom: 2.5px solid var(--wa); transform: rotate(-45deg); }

/* steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: s; }
.steps li { counter-increment: s; border-top: 3px solid var(--river); padding-top: 14px; }
.steps li::before { content: counter(s); font-weight: 800; font-size: 28px; color: var(--marigold); display: block; line-height: 1; margin-bottom: 8px; }
.steps b { display: block; font-size: 19px; margin-bottom: 4px; }
.steps span { color: var(--muted); font-size: 16px; }

/* split layouts */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.prose { max-width: var(--measure); }
.prose h2 { margin-top: 0; }
.prose h3 { font-size: 22px; margin: 28px 0 6px; }
.prose p, .prose li { color: var(--ink); }
.prose ul { padding-left: 22px; }

/* price box */
.price { background: var(--river-deep); color: #fff; border-radius: var(--radius-l); padding: 30px 32px; box-shadow: var(--shadow); }
.price .amt { font-size: 46px; font-weight: 800; line-height: 1; margin: 6px 0 4px; }
.price .per { opacity: .85; }
.price ul { margin: 18px 0 22px; padding-left: 20px; }
.price li { margin: 4px 0; }
.price .note { font-size: 14px; opacity: .8; margin: 16px 0 0; }
.price .btn { width: 100%; background: var(--marigold); border-color: var(--marigold); color: #0a3440; }
.fine { color: var(--muted); font-size: 15px; }

/* countdown */
.countdown { display: flex; gap: 10px; margin: 0 0 24px; flex-wrap: wrap; }
.countdown div { background: var(--card); border: 1px solid var(--mist); border-radius: 12px; padding: 10px 14px; min-width: 76px; text-align: center; }
.countdown b { display: block; font-size: 28px; line-height: 1; color: var(--river); font-variant-numeric: tabular-nums; }
.countdown span { font-size: 13px; color: var(--muted); }

/* calculator */
.calc { background: var(--card); border: 1px solid var(--mist); border-radius: var(--radius-l); padding: 28px; box-shadow: var(--shadow); }
.calc label { display: block; font-weight: 600; margin: 0 0 4px; font-size: 16px; }
.calc .row { margin-bottom: 18px; }
.calc .val { float: right; color: var(--river); font-weight: 800; }
.calc input[type=range] { width: 100%; accent-color: var(--river); height: 28px; }
.calc .out { margin-top: 8px; padding: 18px; border-radius: 12px; background: var(--marigold-soft); }
.calc .out b { display: block; font-size: 34px; line-height: 1.1; color: var(--ink); font-variant-numeric: tabular-nums; }
.calc .out span { font-size: 15px; color: var(--muted); }

/* work */
.work .card .meta { font-size: 14px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }

/* FAQ */
.faq { max-width: 820px; display: grid; gap: 12px; }
.faq details { background: var(--card); border: 1px solid var(--mist); border-radius: 12px; padding: 0 20px; }
.faq details[open] { border-color: var(--river); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 32px 18px 0; font-weight: 700; font-size: 18px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 26px; font-weight: 500; color: var(--river); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { margin: 0 0 18px; color: var(--muted); }

/* enquiry form */
.form { background: var(--card); border: 1px solid var(--mist); border-radius: var(--radius-l); padding: 28px; box-shadow: var(--shadow); display: grid; gap: 16px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: 16px; }
.form input, .form select, .form textarea { font: inherit; font-size: 17px; padding: 12px 14px; border-radius: var(--radius-s); border: 1px solid var(--mist); background: var(--paper); color: var(--ink); width: 100%; }
.form textarea { min-height: 96px; resize: vertical; }
.form .btn { width: 100%; }
.form .hint { margin: 0; font-size: 14px; color: var(--muted); text-align: center; }
.contact-list { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 10px 20px; }
.contact-list dt { color: var(--muted); }
.contact-list dd { margin: 0; font-weight: 500; }

/* CTA band */
.cta-band { background: var(--river-deep); color: #fff; border-radius: var(--radius-l); padding: 44px; display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin: 0 0 6px !important; }
.cta-band p { margin: 0; opacity: .85; }
.cta-band .btn.plain { color: #fff; border-color: rgba(255,255,255,.5); }

/* legal pages */
.legal { padding: 56px 0 72px; }
.legal article { max-width: var(--measure); }
.legal h1 { font-size: clamp(32px, 4vw, 44px); line-height: 1.1; margin: 0 0 8px; letter-spacing: -0.6px; }
.legal .updated { color: var(--muted); margin: 0 0 36px; }
.legal h2 { font-size: 23px; margin: 36px 0 8px; }
.legal p, .legal li { line-height: 1.7; }

/* footer */
.site-foot { border-top: 1px solid var(--mist); padding: 48px 0 40px; font-size: 15px; color: var(--muted); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.foot-grid h3 { font-size: 15px; color: var(--ink); margin: 0 0 10px; text-transform: uppercase; letter-spacing: .06em; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--ink); }
.foot-base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--mist); padding-top: 20px; }

/* floating WhatsApp + mobile CTA bar */
.wa-float { position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 58px; height: 58px; border-radius: 50%; background: var(--wa); color: #fff; display: grid; place-items: center; box-shadow: 0 10px 24px -8px rgba(0,0,0,.45); transition: transform .2s; }
.wa-float:hover { transform: scale(1.06); }
.mobile-bar { display: none; }

/* reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 960px) {
  .cards, .cards.four { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  body { font-size: 17px; }
  .hero { padding: 36px 0 40px; }
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: 1fr 1fr; }
  section.block { padding: 56px 0; }
  .menu-btn { display: block; }
  .js .main-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--mist); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 16px; box-shadow: var(--shadow); }
  .js .main-nav.open { display: flex; }
  .js .main-nav a { padding: 13px 4px; border-bottom: 1px solid var(--mist); font-size: 18px; }
  .js .main-nav .btn { margin-top: 12px; border-bottom: 2px solid var(--river); padding: 13px; }
  .main-nav { flex-wrap: wrap; gap: 14px; }
  .site-head .wrap { position: relative; }
  .cta-band { padding: 32px 24px; }
  /* mobile bar replaces the floating button */
  .wa-float { display: none; }
  .mobile-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: var(--paper); border-top: 1px solid var(--mist); box-shadow: 0 -8px 24px -16px rgba(0,0,0,.35); }
  .mobile-bar .btn { padding: 11px 10px; font-size: 16px; }
  body { padding-bottom: 76px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .cards, .cards.two, .cards.four, .steps, .foot-grid, .form .two { grid-template-columns: 1fr; }
  .thread { min-height: 0; }
  .hero .lede, .page-hero .lede { font-size: 18px; }
  .brand { font-size: 18px; }
  .actions .btn { flex: 1 1 100%; }
  .contact-list { grid-template-columns: 1fr; gap: 2px; }
  .contact-list dd { margin-bottom: 10px; }
  .calc, .form { padding: 20px; }
}