/* ==========================================================================
   S R ENERGIES - stylesheet
   Edit colours & spacing here. Everything else inherits from these tokens.
   ========================================================================== */

:root{
  /* Brand */
  --ink:        #0A2A4A;   /* brand navy - headings, dark sections */
  --ink-soft:   #123A5E;
  --slate:      #3D4E63;   /* body text */
  --muted:      #6B7A8C;   /* secondary text */
  --line:       #E3E7EC;   /* borders */
  --bg:         #FFFFFF;
  --bg-alt:     #F6F8FA;   /* alternating section background */
  --amber:      #F0B41A;   /* the sun in the logo - primary accent */
  --amber-dark: #C1860B;
  --amber-soft: #FEF4DC;
  --green:      #3E8A28;   /* the leaf/swoosh green in the logo */
  --green-dark: #2F6E1F;
  --green-light:#78A830;

  /* Type */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;

  /* Layout */
  --wrap: 1120px;
  --wrap-narrow: 760px;
  --radius: 14px;
  --radius-sm: 8px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(10,42,74,.06), 0 2px 8px rgba(10,42,74,.04);
  --shadow-md: 0 4px 12px rgba(10,42,74,.08), 0 12px 32px rgba(10,42,74,.07);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--slate);background:var(--bg);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--green-dark)}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .6em;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2.05rem,4.6vw,3.25rem);letter-spacing:-.03em}
h2{font-size:clamp(1.6rem,3.1vw,2.3rem)}
h3{font-size:1.2rem}
h4{font-size:1.02rem}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.25em}
li{margin-bottom:.5em}
strong{color:var(--ink);font-weight:650}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:4px}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:var(--wrap-narrow);margin-left:auto;margin-right:auto}
.section{padding:clamp(56px,8vw,104px) 0}
.section--tight{padding:clamp(40px,5vw,64px) 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--ink);color:#C6D0DC}
.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}
.section--dark a{color:#fff}
.center{text-align:center}
.lead{font-size:1.13rem;color:var(--slate)}
.section--dark .lead{color:#AFBCCB}

.eyebrow{
  display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--green-dark);margin-bottom:.9rem;
}
.section--dark .eyebrow,
.hero .eyebrow,
.cta-band .eyebrow{color:var(--amber)}

.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;justify-content:center;
  padding:.85em 1.5em;border-radius:var(--radius-sm);font-weight:650;
  font-size:.97rem;border:1.5px solid transparent;cursor:pointer;
  transition:transform .12s ease,background .15s ease,border-color .15s ease;
  line-height:1.2;text-align:center;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--amber);color:var(--ink);border-color:var(--amber)}
.btn--primary:hover{background:#DCA30F;border-color:#DCA30F;color:var(--ink)}
.btn--dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--dark:hover{background:var(--ink-soft);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink)}
.section--dark .btn--ghost,
.hero .btn--ghost,
.cta-band .btn--ghost{color:#fff;border-color:rgba(255,255,255,.32)}
.section--dark .btn--ghost:hover,
.hero .btn--ghost:hover,
.cta-band .btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.07);color:#fff}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn-row--center{justify-content:center}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand__mark{height:36px;width:auto;flex-shrink:0}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-weight:750;color:var(--ink);font-size:1.06rem;letter-spacing:-.01em}
.brand__tag{font-size:.63rem;letter-spacing:.11em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav{display:flex;align-items:center;gap:2px}
.nav a{
  padding:.55em .78em;font-size:.93rem;font-weight:550;color:var(--slate);
  border-radius:6px;white-space:nowrap;
}
.nav a:hover{background:var(--bg-alt);color:var(--ink)}
.nav a.is-active{color:var(--ink);font-weight:650}
.header .btn{padding:.65em 1.15em;font-size:.9rem}
.nav-toggle{
  display:none;background:none;border:1.5px solid var(--line);border-radius:8px;
  padding:9px 11px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}
@media(max-width:1040px){
  .nav{
    position:fixed;inset:74px 0 auto;background:#fff;flex-direction:column;
    align-items:stretch;padding:12px 24px 26px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);display:none;max-height:calc(100vh - 74px);overflow-y:auto;
  }
  .nav.is-open{display:flex}
  .nav a{padding:.85em .4em;border-bottom:1px solid var(--line);border-radius:0}
  .nav .btn{margin-top:14px;border-bottom:none}
  .nav-toggle{display:block}
  .header__cta{display:none}
}

/* ---------- Hero ---------- */
.hero{
  background:var(--ink);
  background-image:
    radial-gradient(900px 460px at 78% -12%, rgba(240,180,26,.20), transparent 62%),
    radial-gradient(700px 420px at 8% 108%, rgba(62,138,40,.26), transparent 60%);
  color:#C6D0DC;padding:clamp(64px,9vw,116px) 0 clamp(56px,7vw,92px);
}
.hero h1{color:#fff;max-width:17ch}
.hero__sub{font-size:1.16rem;color:#B4C1D0;max-width:56ch;margin-bottom:1.9rem}
/* strong defaults to the dark ink colour, which disappears on dark grounds */
.hero__sub strong,
.cta-band p strong,
.section--dark .lead strong{color:#fff}
.hero__note{font-size:.88rem;color:#8798A9;margin-top:1.3rem}
.hero__note strong{color:#C6D0DC}

/* ---------- Doors (two audiences) ---------- */
.door{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;display:flex;flex-direction:column;height:100%;
  box-shadow:var(--shadow-sm);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.door:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:#CFD8E1}
.door__icon{width:46px;height:46px;margin-bottom:18px}
.door h3{font-size:1.42rem;margin-bottom:.35em}
.door__for{font-size:.83rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:650;margin-bottom:1rem}
.door ul{list-style:none;padding:0;margin:0 0 1.6rem}
.door li{padding-left:1.6em;position:relative;font-size:.97rem}
.door li::before{
  content:"";position:absolute;left:0;top:.58em;width:8px;height:8px;
  border-radius:50%;background:var(--green);
}
.door .btn{margin-top:auto;align-self:flex-start}

/* ---------- Cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;height:100%;
}
.card--alt{background:var(--bg-alt);border-color:transparent}
.card h3{font-size:1.1rem;margin-bottom:.45em}
.card p:last-child{margin-bottom:0}
.card__num{
  font-size:.78rem;font-weight:750;color:var(--green-dark);letter-spacing:.1em;
  display:block;margin-bottom:.7rem;
}
.section--dark .card{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.11)}

/* ---------- Promises ---------- */
.promise{display:flex;gap:16px;align-items:flex-start}
.promise__icon{
  flex-shrink:0;width:40px;height:40px;border-radius:10px;background:var(--amber-soft);
  display:flex;align-items:center;justify-content:center;color:var(--amber-dark);
}
.section--dark .promise__icon{background:rgba(240,180,26,.18);color:var(--amber)}
.promise h4{margin-bottom:.28em}
.promise p{font-size:.94rem;margin:0;color:var(--muted)}
.section--dark .promise p{color:#93A3B4}

/* ---------- Process steps ---------- */
.steps{counter-reset:step;display:grid;gap:0}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:26px 0;border-top:1px solid var(--line);
}
.step:last-child{border-bottom:1px solid var(--line)}
.step__n{
  counter-increment:step;font-size:1.5rem;font-weight:750;color:var(--amber);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.step__n::before{content:"0" counter(step)}
.step h3{margin-bottom:.3em;font-size:1.13rem}
.step p{margin:0;font-size:.97rem}
@media(max-width:560px){.step{grid-template-columns:44px 1fr;gap:14px}.step__n{font-size:1.15rem}}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.6em;border:1px solid var(--line);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem;background:#fff}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--bg-alt);font-weight:700;color:var(--ink);font-size:.83rem;letter-spacing:.05em;text-transform:uppercase}
tr:last-child td{border-bottom:none}
td strong{color:var(--ink)}

/* ---------- Notes / callouts ---------- */
.note{
  background:var(--amber-soft);border-left:3px solid var(--amber);
  padding:20px 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:0 0 1.6em;
}
.note p:last-child{margin-bottom:0}
.note--plain{background:var(--bg-alt);border-left-color:var(--muted)}

/* ---------- Accordion (FAQ) ---------- */
details{border-bottom:1px solid var(--line);padding:6px 0}
details summary{
  cursor:pointer;padding:16px 34px 16px 0;font-weight:650;color:var(--ink);
  position:relative;list-style:none;font-size:1.02rem;
}
details summary::-webkit-details-marker{display:none}
details summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:1.4rem;color:var(--green-dark);font-weight:400;line-height:1;
}
details[open] summary::after{content:"\2013"}
details .details__body{padding:0 34px 18px 0}
details .details__body p:last-child{margin-bottom:0}

/* ---------- Guides ---------- */
.guide-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;height:100%;transition:box-shadow .18s ease,transform .18s ease;
}
.guide-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.guide-card h3{font-size:1.08rem}
.guide-card p{font-size:.95rem;color:var(--muted);flex-grow:1}
.guide-card__link{font-weight:650;color:var(--green-dark);font-size:.92rem}
.article{max-width:var(--wrap-narrow);margin:0 auto}
.article h2{margin-top:2.4em;font-size:1.6rem}
.article h3{margin-top:1.8em}
.article__meta{color:var(--muted);font-size:.9rem;margin-bottom:2.2rem;padding-bottom:1.4rem;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:.88rem;color:var(--muted);margin-bottom:1.2rem}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green-dark)}

/* ---------- Facts strip ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.fact{background:#fff;padding:26px 22px;text-align:center}
.fact__v{font-size:1.75rem;font-weight:750;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.fact__v span{color:var(--green-dark)}
.fact__l{font-size:.85rem;color:var(--muted);margin-top:.35rem}
@media(max-width:820px){.facts{grid-template-columns:repeat(2,1fr)}}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink);
  background-image:radial-gradient(760px 380px at 82% 0%, rgba(240,180,26,.20), transparent 62%),
                   radial-gradient(620px 340px at 6% 100%, rgba(62,138,40,.22), transparent 62%);
  border-radius:var(--radius);padding:clamp(38px,5.5vw,60px);color:#B4C1D0;text-align:center;
}
.cta-band h2{color:#fff;margin-bottom:.5em}
.cta-band p{max-width:52ch;margin:0 auto 1.8em;color:#AFBCCB}

/* ---------- Contact ---------- */
.contact-item{display:flex;gap:15px;align-items:flex-start;margin-bottom:26px}
.contact-item__icon{
  flex-shrink:0;width:38px;height:38px;border-radius:9px;background:var(--amber-soft);
  display:flex;align-items:center;justify-content:center;color:var(--amber-dark)
}
.contact-item h4{margin-bottom:.2em;font-size:.98rem}
.contact-item p{margin:0;font-size:.97rem}
.contact-item a{color:var(--slate);border-bottom:1px solid var(--line)}
.contact-item a:hover{color:var(--amber-dark);border-color:var(--amber)}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#8E9DAD;padding:64px 0 28px;font-size:.93rem}
.footer h4{color:#fff;font-size:.8rem;letter-spacing:.11em;text-transform:uppercase;margin-bottom:1.1em}
.footer a{color:#8E9DAD}
.footer a:hover{color:var(--amber)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:38px}
@media(max-width:900px){.footer__grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:560px){.footer__grid{grid-template-columns:1fr}}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:.6em}
.footer__brand{margin-bottom:1.2rem}
.footer__logo{
  display:inline-block;background:#fff;border-radius:12px;padding:13px 16px;
  line-height:0;box-shadow:0 2px 10px rgba(0,0,0,.18);
}
.footer__logo img{width:186px;height:auto;display:block}
.footer__bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.11);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.86rem;color:#7A8898;
}
.udyam{
  display:inline-block;border:1px solid rgba(255,255,255,.18);border-radius:6px;
  padding:.45em .8em;font-size:.8rem;color:#AFBCCB;margin-top:.7rem;
}

/* ---------- Floating WhatsApp ---------- */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:70;display:inline-flex;align-items:center;gap:10px;
  background:#25D366;color:#0A2E17;font-weight:700;font-size:.94rem;
  padding:13px 19px 13px 15px;border-radius:40px;box-shadow:0 6px 20px rgba(0,0,0,.22);
  transition:transform .15s ease;
}
.wa-float:hover{transform:translateY(-2px);color:#0A2E17}
.wa-float svg{width:22px;height:22px;flex-shrink:0}
@media(max-width:560px){
  .wa-float{right:14px;bottom:14px;padding:15px;border-radius:50%}
  .wa-float .wa-float__label{display:none}
}

/* ---------- Utilities ---------- */
.mb-0{margin-bottom:0}
.mt-2{margin-top:2rem}
.small{font-size:.88rem}
.muted{color:var(--muted)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:12px 18px;z-index:200;border-radius:8px;box-shadow:var(--shadow-md)}