/* ============================================================
   Nepa Nest Pvt. Ltd. - Core Stylesheet
   1. Design tokens      5. Header / Nav
   2. Reset & base       6. Cards & components
   3. Typography         7. Footer
   4. Layout & buttons   8. Responsive
   ============================================================ */

/* ---------- 1. DESIGN TOKENS ---------- */
:root{
  /* Brand: crimson #98272e + copper #cb7e51 */
  --crimson-300:#e8a0a4; --crimson-400:#cf5f66; --crimson-500:#98272e;
  --crimson-600:#7c1f25; --crimson-700:#5e171c;
  --copper-300:#eec6a9; --copper-400:#dc9a70; --copper-500:#cb7e51;
  --copper-600:#a8623b; --copper-700:#82492b;

  /* Status colours stay semantic - never brand */
  --ok:#2f7d5f; --ok-ink:#26694f;
  --warn:#b4661f; --warn-ink:#8f4f14;
  --danger:#d0342c; --danger-ink:#b02a23;

  --grad-brand:linear-gradient(120deg,#98272e 0%,#cb7e51 100%);
  --grad-warm:linear-gradient(120deg,#cb7e51 0%,#eec6a9 100%);
  --grad-mesh:radial-gradient(60% 60% at 15% 20%,rgba(152,39,46,.18) 0%,transparent 60%),
              radial-gradient(50% 50% at 85% 10%,rgba(203,126,81,.20) 0%,transparent 60%),
              radial-gradient(45% 45% at 70% 85%,rgba(152,39,46,.11) 0%,transparent 60%);

  --bg:#ffffff;
  --bg-soft:#fbf7f5;
  --bg-elev:#ffffff;
  --bg-inset:#f4ece7;
  --line:#ebe0d9;
  --line-strong:#d8c7bc;

  --ink:#1a1210;
  --ink-2:#57483f;
  --ink-3:#8a786f;

  --brand:var(--crimson-500);
  --brand-ink:#85222a;
  --accent:var(--copper-500);

  --ring:rgba(152,39,46,.30);
  --shadow-sm:0 1px 2px rgba(38,21,17,.06),0 2px 6px rgba(38,21,17,.05);
  --shadow-md:0 6px 16px rgba(38,21,17,.08),0 2px 6px rgba(38,21,17,.05);
  --shadow-lg:0 18px 45px rgba(38,21,17,.13),0 6px 14px rgba(38,21,17,.07);
  --shadow-glow:0 20px 50px rgba(152,39,46,.28);

  --r-xs:8px; --r-sm:12px; --r-md:16px; --r-lg:22px; --r-xl:30px; --r-pill:999px;

  --step:clamp(64px,7vw,110px);
  --gutter:clamp(18px,4vw,32px);
  --maxw:1200px;

  --t-fast:.18s cubic-bezier(.4,0,.2,1);
  --t:.3s cubic-bezier(.4,0,.2,1);
  --t-slow:.6s cubic-bezier(.16,1,.3,1);

  --font:"Plus Jakarta Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --header-h:76px;
  color-scheme:light;
}

html[data-theme="dark"]{
  --bg:#141010;
  --bg-soft:#1b1514;
  --bg-elev:#221a19;
  --bg-inset:#2c221f;
  --line:#3a2b27;
  --line-strong:#4d3a34;

  --ink:#f7efec;
  --ink-2:#d0bfb8;
  --ink-3:#a2908a;

  --brand:var(--crimson-400);
  --brand-ink:#e8a0a4;
  --accent:var(--copper-400);

  --ok:#4bbd8f; --ok-ink:#6fd3aa;
  --warn:#e09048; --warn-ink:#eeaa6c;
  --danger:#f0837c; --danger-ink:#f5a29c;

  --ring:rgba(207,95,102,.45);
  --shadow-sm:0 1px 2px rgba(0,0,0,.45);
  --shadow-md:0 8px 20px rgba(0,0,0,.5);
  --shadow-lg:0 22px 55px rgba(0,0,0,.6);
  --shadow-glow:0 20px 60px rgba(152,39,46,.45);

  --grad-mesh:radial-gradient(60% 60% at 15% 20%,rgba(152,39,46,.32) 0%,transparent 62%),
              radial-gradient(50% 50% at 85% 10%,rgba(203,126,81,.24) 0%,transparent 62%),
              radial-gradient(45% 45% at 70% 85%,rgba(152,39,46,.16) 0%,transparent 62%);
  color-scheme:dark;
}

/* ---------- 2. RESET & BASE ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  transition:background var(--t),color var(--t);
}
body.nav-open{overflow:hidden}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
:focus-visible{outline:3px solid var(--ring);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand);color:#fff}

.skip-link{
  position:absolute;left:16px;top:-80px;z-index:2000;
  background:var(--brand);color:#fff;padding:12px 20px;border-radius:var(--r-sm);
  font-weight:700;transition:top var(--t);
}
.skip-link:focus{top:16px}

::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:var(--bg-soft)}
::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px;border:3px solid var(--bg-soft)}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}

/* ---------- 3. TYPOGRAPHY ---------- */
h1,h2,h3,h4,h5{line-height:1.15;font-weight:800;letter-spacing:-.022em;color:var(--ink)}
h1{font-size:clamp(2.35rem,5.4vw,4.15rem);letter-spacing:-.035em}
h2{font-size:clamp(1.85rem,3.6vw,2.9rem);letter-spacing:-.03em}
h3{font-size:clamp(1.18rem,1.8vw,1.5rem)}
h4{font-size:1.05rem;font-weight:700}
p{color:var(--ink-2)}
.lead{font-size:clamp(1.02rem,1.5vw,1.19rem);color:var(--ink-2);line-height:1.75}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{font-family:var(--font-mono);font-size:.82em;letter-spacing:.02em}

/* ---------- 4. LAYOUT ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-wide{max-width:1340px}
.section{padding-block:var(--step);position:relative}
.section--soft{background:var(--bg-soft)}
.section--tight{padding-block:calc(var(--step) * .6)}
.grid{display:grid;gap:clamp(18px,2.4vw,28px)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.center{text-align:center}
.mt-24{margin-top:24px}
.mt-40{margin-top:40px}

.sec-head{max-width:660px;margin-bottom:clamp(34px,4.5vw,58px)}
.sec-head.center{margin-inline:auto}
.sec-head h2{margin-block:14px 14px}
.sec-head p{font-size:1.05rem}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.735rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-ink);
  background:color-mix(in srgb,var(--brand) 11%,transparent);
  border:1px solid color-mix(in srgb,var(--brand) 22%,transparent);
  padding:7px 15px;border-radius:var(--r-pill);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-weight:700;font-size:.95rem;letter-spacing:-.01em;
  background:var(--brand);color:#fff;
  border:1px solid transparent;white-space:nowrap;
  transition:transform var(--t-fast),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn svg{width:17px;height:17px;flex:none;transition:transform var(--t)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--grad-brand);box-shadow:0 10px 26px -8px rgba(152,39,46,.6)}
.btn--primary:hover{box-shadow:0 16px 34px -8px rgba(152,39,46,.68)}
.btn--primary:hover svg{transform:translateX(3px)}
.btn--accent{background:var(--grad-warm);color:var(--crimson-700);box-shadow:0 10px 26px -8px rgba(203,126,81,.6)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-ink);background:color-mix(in srgb,var(--brand) 7%,transparent)}
.btn--light{background:#fff;color:var(--crimson-600)}
.btn--light:hover{box-shadow:0 14px 30px -10px rgba(0,0,0,.5)}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn--sm{padding:10px 19px;font-size:.875rem}
.btn--lg{padding:17px 34px;font-size:1.02rem}
.btn--block{width:100%}

.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:.92rem;
  color:var(--brand-ink);transition:gap var(--t),color var(--t);
}
.link-arrow svg{width:15px;height:15px;transition:transform var(--t)}
.link-arrow:hover{gap:11px}
.link-arrow:hover svg{transform:translateX(2px)}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.78rem;font-weight:650;color:var(--ink-2);
  background:var(--bg-inset);border:1px solid var(--line);
  padding:5px 12px;border-radius:var(--r-pill);
}

/* ---------- 5. HEADER ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:900;height:var(--header-h);
  display:flex;align-items:center;
  transition:background var(--t),box-shadow var(--t),border-color var(--t),height var(--t);
  border-bottom:1px solid transparent;
}
.header.is-stuck{
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 4px 24px rgba(38,21,17,.06);
  --header-h:66px;
}
.header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1340px}

/* Brand lockup - horizontal logo artwork (assets/img/logo.png, 342x74)
   Heights are capped at 37px so a 2x display never has to upscale the
   74px-tall source. Raise these only after exporting the logo at 2x. */
.brand{display:flex;align-items:center;flex:none}
.brand__logo{
  height:36px;width:auto;display:block;
  transition:transform var(--t),height var(--t),filter var(--t);
}
.brand:hover .brand__logo{transform:scale(1.035)}
.header.is-stuck .brand__logo{height:32px}
.footer .brand__logo{height:37px}
/* The artwork was drawn for light backgrounds; lift it slightly on dark. */
html[data-theme="dark"] .brand__logo{filter:brightness(1.18) saturate(1.08)}
@media (max-width:640px){
  .brand__logo{height:32px}
  .header.is-stuck .brand__logo{height:29px}
}

.nav{display:flex;align-items:center;gap:2px}
.nav a{
  position:relative;padding:9px 15px;border-radius:var(--r-sm);
  font-size:.925rem;font-weight:650;color:var(--ink-2);transition:color var(--t)}
.nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:750}

.head-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:41px;height:41px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--bg-elev);color:var(--ink-2);
  transition:all var(--t);
}
.icon-btn:hover{color:var(--brand-ink);border-color:var(--brand);transform:translateY(-2px)}
.icon-btn svg{width:19px;height:19px}
.theme-btn .moon{display:none}
html[data-theme="dark"] .theme-btn .sun{display:none}
html[data-theme="dark"] .theme-btn .moon{display:block}

.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--bg-elev)}
.burger span{display:block;width:19px;height:2px;margin:4px auto;border-radius:2px;background:var(--ink);transition:transform var(--t),opacity var(--t)}
body.nav-open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:880;
  background:var(--bg);padding:26px var(--gutter) 40px;
  display:flex;flex-direction:column;
  transform:translateX(100%);opacity:0;visibility:hidden;
  transition:transform var(--t-slow),opacity var(--t),visibility var(--t);
  overflow-y:auto;
}
body.nav-open .drawer{transform:translateX(0);opacity:1;visibility:visible}
.drawer .d-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:17px 4px;font-size:1.22rem;font-weight:750;
  border-bottom:1px solid var(--line);color:var(--ink);
}
.drawer .d-link svg{width:17px;height:17px;color:var(--ink-3)}
.drawer .d-link[aria-current="page"]{color:var(--brand-ink)}
.drawer .btn{margin-top:26px}
.drawer__meta{margin-top:auto;padding-top:30px;color:var(--ink-3);font-size:.88rem}
.drawer__meta a{color:var(--ink-2);font-weight:650}

.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:950;background:var(--grad-brand);transition:width .1s linear}

main{padding-top:var(--header-h)}

/* ---------- 6. CARDS & SHARED COMPONENTS ---------- */
.card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(22px,2.6vw,30px);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  position:relative;overflow:hidden;
}
.card--hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--brand) 35%,var(--line))}
.card__ico{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin-bottom:18px;
  background:color-mix(in srgb,var(--brand) 12%,transparent);color:var(--brand-ink);
  transition:transform var(--t),background var(--t),color var(--t);
}
.card__ico svg{width:25px;height:25px}
.card--hover:hover .card__ico{background:var(--grad-brand);color:#fff;transform:scale(1.08) rotate(-5deg)}
.card h3{margin-bottom:9px}
.card p{font-size:.945rem}
.card__glow{
  position:absolute;inset:auto -30% -55% auto;width:200px;height:200px;border-radius:50%;
  background:var(--grad-brand);filter:blur(60px);opacity:0;transition:opacity var(--t);pointer-events:none;
}
.card--hover:hover .card__glow{opacity:.16}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* page hero (inner pages) */
.phero{
  position:relative;overflow:hidden;
  padding-block:clamp(56px,7vw,96px) clamp(48px,6vw,80px);
  background:var(--bg-soft);border-bottom:1px solid var(--line);
}
.phero::before{content:"";position:absolute;inset:0;background:var(--grad-mesh);pointer-events:none}
.phero .wrap{position:relative}
.phero h1{font-size:clamp(2.1rem,4.6vw,3.4rem);margin-block:16px 16px}
.phero .lead{max-width:62ch}
.crumbs{display:flex;gap:9px;align-items:center;font-size:.86rem;color:var(--ink-3);margin-bottom:6px}
.crumbs a:hover{color:var(--brand-ink)}
.crumbs span{opacity:.55}

/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(125deg,#5e171c 0%,#98272e 48%,#cb7e51 100%);
  color:#fff;padding:clamp(38px,5.5vw,68px);text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:-40%;
  background:radial-gradient(40% 40% at 20% 20%,rgba(255,255,255,.22) 0,transparent 60%),
             radial-gradient(35% 35% at 80% 70%,rgba(238,198,169,.32) 0,transparent 60%);
  animation:drift 18s ease-in-out infinite alternate;
}
@keyframes drift{to{transform:translate3d(4%,-4%,0) rotate(8deg)}}
.cta-band>*{position:relative}
.cta-band h2{color:#fff;max-width:20ch;margin-inline:auto}
.cta-band p{color:rgba(255,255,255,.86);max-width:56ch;margin:16px auto 30px;font-size:1.05rem}
.cta-band .row{justify-content:center}

/* ---------- 7. FOOTER ---------- */
.footer{background:var(--bg-soft);border-top:1px solid var(--line);padding-top:clamp(52px,6vw,78px)}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:clamp(28px,4vw,48px)}
.footer h4{font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:18px}
.footer__links li{margin-bottom:11px}
.footer__links a{font-size:.94rem;color:var(--ink-2);transition:color var(--t),padding-left var(--t)}
.footer__links a:hover{color:var(--brand-ink);padding-left:5px}
.footer .brand{margin-bottom:16px}
.footer__about p{font-size:.94rem;max-width:36ch}
.contact-line{display:flex;gap:11px;align-items:flex-start;margin-bottom:13px;font-size:.93rem;color:var(--ink-2)}
.contact-line svg{width:17px;height:17px;color:var(--brand-ink);flex:none;margin-top:4px}
.contact-line a:hover{color:var(--brand-ink)}
.socials{display:flex;gap:9px;margin-top:20px}
.socials a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--bg-elev);color:var(--ink-2);transition:all var(--t);
}
.socials a:hover{background:var(--grad-brand);color:#fff;border-color:transparent;transform:translateY(-3px)}
.socials svg{width:17px;height:17px}
.footer__bottom{
  margin-top:clamp(38px,5vw,58px);border-top:1px solid var(--line);
  padding-block:24px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:.87rem;color:var(--ink-3);
}
.footer__bottom nav{display:flex;gap:20px}
.footer__bottom a:hover{color:var(--brand-ink)}

.to-top{
  position:fixed;right:22px;bottom:22px;z-index:800;
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-glow);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:all var(--t);
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-3px)}
.to-top svg{width:19px;height:19px}

/* ---------- 8. RESPONSIVE ---------- */
@media (max-width:1024px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:880px){
  .nav,.head-actions .btn{display:none}
  .burger{display:block}
  .g-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:34px}
  .footer__bottom{flex-direction:column;text-align:center}
  body{font-size:16px}
  .btn{width:100%}
  .row .btn{width:auto;flex:1 1 auto;min-width:170px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}