/* =========================================================
   Net Zero Green Bharat — stylesheet
   ========================================================= */

:root{
  --forest:#0b2d14;
  --forest-2:#103a1c;
  --green:#1c5a2f;
  --leaf:#2f9b2f;
  --leaf-2:#43a82c;
  --lime:#79c143;
  --lime-soft:#9ed36a;

  --paper:#f8faf6;
  --mint:#eef6ec;
  --mint-2:#e1efdd;

  --ink:#10231a;
  --body:#3c4a41;
  --muted:#6a7a6e;
  --line:rgba(11,45,20,.10);

  --white:#ffffff;

  --maxw:1160px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px -24px rgba(11,45,20,.35);
  --shadow-sm:0 8px 24px -14px rgba(11,45,20,.30);

  --font-head:'Montserrat',sans-serif;
  --font-body:'Inter',system-ui,-apple-system,sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:100px;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--body);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,40px)}

h1,h2,h3{font-family:var(--font-head);color:var(--ink);line-height:1.1;letter-spacing:-.02em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--font-head);font-weight:700;font-size:.97rem;letter-spacing:.01em;
  padding:.92em 1.7em;border-radius:100px;cursor:pointer;border:1.5px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;
}
.btn--primary{background:var(--lime);color:var(--forest);box-shadow:0 12px 30px -12px rgba(121,193,67,.8)}
.btn--primary:hover{transform:translateY(-3px);background:var(--lime-soft);box-shadow:0 18px 38px -14px rgba(121,193,67,.9)}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.55)}
.btn--ghost:hover{transform:translateY(-3px);background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- eyebrow / titles ---------- */
.eyebrow{
  font-family:var(--font-head);font-weight:700;text-transform:uppercase;
  letter-spacing:.18em;font-size:.74rem;color:var(--leaf-2);margin-bottom:14px;
}
.eyebrow--light{color:var(--lime-soft)}
.section__title{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800}
.section__title--light{color:#fff}
.section__sub{margin-top:16px;max-width:560px;color:var(--muted);font-size:1.04rem}
.section--forest .section__sub{color:rgba(255,255,255,.72)}
.section__head{max-width:680px;margin-bottom:clamp(34px,5vw,56px)}
.section__head--center{max-width:760px;margin-inline:auto;text-align:center}

/* ---------- section spacing ---------- */
.section{padding-block:clamp(64px,9vw,118px);position:relative}
.section--forest{background:var(--forest);background-image:radial-gradient(120% 120% at 85% -10%,rgba(121,193,67,.16),transparent 55%),radial-gradient(90% 90% at 5% 110%,rgba(47,155,47,.18),transparent 50%)}
.section--mint{background:var(--mint)}

/* =========================================================
   NAV
   ========================================================= */
.nav{position:fixed;inset:0 0 auto 0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .35s,padding .35s}
.nav__inner{
  max-width:var(--maxw);margin-inline:auto;padding:14px clamp(20px,5vw,40px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;transition:padding .35s;
}
.nav__logo{height:62px;width:auto;transition:height .35s}
.nav.scrolled{box-shadow:0 8px 30px -18px rgba(11,45,20,.45)}
.nav.scrolled .nav__inner{padding-block:9px}
.nav.scrolled .nav__logo{height:52px}

.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{
  font-family:var(--font-head);font-weight:600;font-size:.95rem;color:var(--green);
  position:relative;transition:color .25s
}
.nav__links a:not(.nav__cta)::after{
  content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--leaf-2);transition:width .3s var(--ease)
}
.nav__links a:not(.nav__cta):hover{color:var(--forest)}
.nav__links a:not(.nav__cta):hover::after{width:100%}
.nav__cta{
  background:var(--lime);color:var(--forest)!important;padding:.62em 1.3em;border-radius:100px;
  transition:transform .25s var(--ease),background .25s
}
.nav__cta:hover{transform:translateY(-2px);background:var(--lime-soft)}

.nav__toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;
  align-items:center;justify-content:center;background:transparent;border:0;cursor:pointer}
.nav__toggle span{width:24px;height:2.5px;background:var(--forest);border-radius:3px;transition:.3s var(--ease)}
.nav__toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav__toggle.open span:nth-child(2){opacity:0}
.nav__toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;isolation:isolate;overflow:hidden}
.hero__bg,.hero__bg img{position:absolute;inset:0;width:100%;height:100%}
.hero__bg img{object-fit:cover;object-position:center right}
.hero__overlay{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg,rgba(7,28,14,.92) 0%,rgba(8,33,17,.72) 38%,rgba(8,33,17,.18) 70%,rgba(8,33,17,.05) 100%),
    linear-gradient(180deg,rgba(7,28,14,.5),transparent 30%,rgba(7,28,14,.55));
}
.hero__content{position:relative;z-index:2;max-width:760px;padding:140px 0 90px;
  padding-inline:clamp(20px,5vw,40px);margin-inline:auto;width:100%;max-width:calc(var(--maxw) + 0px)}
.hero__content{max-width:var(--maxw)}
.hero__kicker{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-head);font-weight:600;font-size:.8rem;letter-spacing:.04em;
  text-transform:uppercase;color:var(--lime-soft);margin-bottom:26px
}
.hero__kicker .dot{color:rgba(255,255,255,.4)}
.hero__title{font-size:clamp(2.4rem,6.4vw,4.6rem);font-weight:900;color:#fff;max-width:14ch}
.hero__title .grad{
  background:linear-gradient(105deg,var(--lime) 10%,var(--lime-soft) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block
}
.hero__lead{margin-top:24px;max-width:600px;font-size:clamp(1.02rem,1.6vw,1.18rem);color:rgba(255,255,255,.86)}
.hero__actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:16px}

.hero__scroll{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:2;
  width:26px;height:42px;border:2px solid rgba(255,255,255,.5);border-radius:20px;display:flex;justify-content:center}
.hero__scroll span{width:4px;height:9px;background:var(--lime);border-radius:3px;margin-top:7px;animation:scrolldot 1.8s var(--ease) infinite}
@keyframes scrolldot{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%,100%{opacity:0;transform:translateY(12px)}}

/* =========================================================
   ABOUT
   ========================================================= */
.about__grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(28px,6vw,72px);align-items:start}
.about__grid .section__title{font-size:clamp(1.8rem,3.4vw,2.5rem)}
.about__body p{margin-bottom:18px;font-size:1.08rem}
.about__body p:first-child{color:var(--ink);font-weight:500}
.about__body p:last-child{margin-bottom:0}

/* =========================================================
   FOCUS AREAS
   ========================================================= */
.focus__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.fcard{
  background:#fff;border:1px solid rgba(255,255,255,.5);border-radius:var(--radius);
  padding:34px 26px;box-shadow:0 22px 50px -30px rgba(0,0,0,.6);
  display:flex;flex-direction:column;align-items:flex-start;gap:20px;
  transition:transform .4s var(--ease),box-shadow .4s
}
.fcard:hover{transform:translateY(-8px);box-shadow:0 30px 60px -28px rgba(0,0,0,.55)}
.fcard__icon{width:62px;height:62px;border-radius:16px;display:grid;place-items:center;
  background:var(--mint);border:1px solid rgba(67,168,44,.25)}
.fcard__icon svg{width:32px;height:32px;color:var(--leaf-2)}
.fcard h3{color:var(--ink);font-size:1.14rem;font-weight:700;line-height:1.28}

/* =========================================================
   PROJECTS
   ========================================================= */
.projects__grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 36px;
  box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:center;transition:transform .35s var(--ease),box-shadow .35s}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pcard--feature{border-color:rgba(67,168,44,.3);
  background:linear-gradient(150deg,#f3faef,#e6f3df)}
.pcard--feature::after{content:"";position:absolute;right:-50px;bottom:-50px;width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle,rgba(121,193,67,.28),transparent 70%)}
.pcard__num{font-family:var(--font-head);font-weight:900;font-size:clamp(2.8rem,6vw,4rem);
  color:var(--leaf-2);line-height:1;position:relative;z-index:1}
.pcard__title{font-family:var(--font-head);font-weight:700;font-size:1.2rem;color:var(--ink);margin-top:8px;position:relative;z-index:1}
.pcard__desc{margin-top:12px;font-size:.98rem;color:var(--muted);position:relative;z-index:1}
.pcard__icon{width:58px;height:58px;border-radius:15px;display:grid;place-items:center;margin-bottom:22px;
  background:var(--mint);color:var(--leaf-2)}
.pcard__icon svg{width:30px;height:30px}

/* =========================================================
   INNOVATION & IP
   ========================================================= */
.ip__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ip{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:22px 24px;font-family:var(--font-head);font-weight:600;color:var(--ink);font-size:1.02rem;
  box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),border-color .3s}
.ip:hover{transform:translateY(-4px);border-color:var(--lime)}
.ip__dot{flex:0 0 auto;width:12px;height:12px;border-radius:50%;background:linear-gradient(140deg,var(--lime),var(--leaf-2));box-shadow:0 0 0 4px rgba(121,193,67,.18)}

/* =========================================================
   LEADERSHIP
   ========================================================= */
.team__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.member{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .4s var(--ease),box-shadow .4s}
.member:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.member__photo{aspect-ratio:4/5;overflow:hidden;background:var(--mint-2)}
.member__photo img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .6s var(--ease)}
.member:hover .member__photo img{transform:scale(1.05)}
.member__name{font-size:1.12rem;font-weight:700;padding:20px 22px 0}
.member__role{padding:6px 22px 24px;color:var(--leaf-2);font-weight:600;font-size:.92rem;font-family:var(--font-head)}

/* =========================================================
   WHY CHOOSE
   ========================================================= */
.why__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.why__item{display:flex;align-items:center;gap:16px;background:#fff;
  border:1px solid rgba(255,255,255,.5);border-radius:var(--radius-sm);padding:26px 26px;
  box-shadow:0 20px 44px -30px rgba(0,0,0,.55);transition:transform .35s var(--ease),box-shadow .35s}
.why__item:hover{transform:translateY(-5px);box-shadow:0 28px 56px -28px rgba(0,0,0,.5)}
.why__item p{color:var(--ink);font-weight:600;font-size:1rem;line-height:1.4;font-family:var(--font-head)}
.check{flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:linear-gradient(140deg,var(--lime),var(--leaf-2));
  position:relative;box-shadow:0 6px 16px -6px rgba(121,193,67,.8)}
.check::after{content:"";position:absolute;left:10px;top:6px;width:7px;height:13px;border:solid var(--forest);
  border-width:0 2.6px 2.6px 0;transform:rotate(45deg)}

/* =========================================================
   CONTACT
   ========================================================= */
.contact__card{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(34px,5vw,60px);align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:26px;padding:clamp(36px,5vw,64px);
  box-shadow:var(--shadow);position:relative;overflow:hidden}
.contact__card::before{content:"";position:absolute;top:-70px;right:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(121,193,67,.18),transparent 70%)}
.contact__text{position:relative;z-index:1}
.contact__card .section__title{color:var(--ink);font-size:clamp(1.7rem,3.2vw,2.4rem)}
.contact__lead{margin-top:16px;color:var(--leaf-2);max-width:34ch;font-family:var(--font-head);font-weight:700;font-size:1.15rem;line-height:1.35}
.contact__info{position:relative;z-index:1;display:flex;flex-direction:column;gap:16px}
.info{display:flex;align-items:center;gap:18px;background:var(--mint);border:1px solid rgba(67,168,44,.18);
  border-radius:16px;padding:20px 22px;transition:transform .3s var(--ease),background .3s,border-color .3s}
.info:hover{transform:translateY(-4px);background:var(--mint-2);border-color:rgba(67,168,44,.4)}
.info__icon{flex:0 0 auto;width:50px;height:50px;border-radius:13px;display:grid;place-items:center;
  background:var(--leaf-2);color:#fff}
.info__icon svg{width:26px;height:26px}
.info__meta{display:flex;flex-direction:column;min-width:0}
.info__meta small{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.12em;font-size:.66rem;color:var(--leaf);font-weight:700}
.info__meta strong{color:var(--ink);font-size:.95rem;font-weight:600;word-break:break-word;letter-spacing:-.01em}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{background:var(--mint);color:var(--body);padding-top:60px;border-top:1px solid var(--line)}
.footer__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:40px;padding-bottom:44px}
.footer__brand{max-width:380px}
.footer__logo{height:72px;width:auto}
.footer__tag{margin-top:20px;font-size:.95rem;line-height:1.6;color:var(--muted)}
.footer__nav{display:grid;grid-template-columns:1fr 1fr;gap:12px 48px;align-content:start}
.footer__nav a{font-family:var(--font-head);font-weight:600;font-size:.95rem;color:var(--green);transition:color .25s}
.footer__nav a:hover{color:var(--leaf-2)}
.footer__bar{border-top:1px solid var(--line)}
.footer__bar-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-block:22px;
  font-size:.84rem;color:var(--muted)}
.footer__bar-inner > p{margin:0}
.footer__powered{flex:1 1 auto;text-align:center;font-weight:600;color:var(--green);font-family:var(--font-head)}
.footer__credit a{color:var(--leaf-2);font-weight:600;text-decoration:none;transition:color .25s}
.footer__credit a:hover{color:var(--forest);text-decoration:underline}
@media (max-width:760px){
  .footer__bar-inner{flex-direction:column;text-align:center;gap:10px}
  .footer__powered{flex:none}
}

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .hero__scroll span{animation:none}
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:980px){
  .focus__grid,.team__grid{grid-template-columns:repeat(2,1fr)}
  .ip__grid,.why__grid{grid-template-columns:repeat(2,1fr)}
  .about__grid{grid-template-columns:1fr;gap:28px}
  .projects__grid,.contact__card{grid-template-columns:1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav__toggle{display:flex}
  .nav__links{
    position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--forest);padding:90px 28px 32px;
    transform:translateY(-110%);transition:transform .45s var(--ease);box-shadow:0 30px 60px -20px rgba(0,0,0,.5);
    height:auto;max-height:100svh
  }
  .nav__links.open{transform:translateY(0)}
  .nav__links a{color:#fff!important;text-shadow:none;font-size:1.05rem;padding:16px 4px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav__links a::after{display:none}
  .nav__cta{background:var(--lime);color:var(--forest)!important;text-align:center;margin-top:18px;border-bottom:0!important;padding:16px}
  .nav.scrolled .nav__links a{color:#fff}
  .hero__content{padding-top:120px}
  .about__stats{grid-template-columns:1fr;gap:22px}
}
@media (max-width:520px){
  .focus__grid,.team__grid,.ip__grid,.why__grid{grid-template-columns:1fr}
  .hero__kicker{font-size:.72rem;gap:7px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .footer__inner{flex-direction:column;gap:32px}
  .footer__nav{grid-template-columns:1fr 1fr}
}