/* ===========================
   Shankar Engineers Landing Page
   Pure HTML + CSS (No framework)
   =========================== */

:root{
  --bg: #060b16;
  --bg2:#0b1636;
  --card:#0b1d45;
  --card2:#0f2658;

  --text:#eaf0ff;
  --muted:#b6c4e6;

  --blue:#0b2b5e;
  --blue2:#0e3b85;

  --orange:#ff8a1f;
  --orange2:#ffb14a;

  --border: rgba(255,255,255,0.10);
  --shadow: 0 18px 55px rgba(0,0,0,0.40);
  --radius: 18px;
  --radius2: 26px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, Helvetica, sans-serif;
  color:var(--text);
  background: radial-gradient(1100px 600px at 18% 10%, rgba(14,59,133,0.40), transparent 55%),
              radial-gradient(1000px 600px at 80% 30%, rgba(255,138,31,0.18), transparent 60%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  line-height:1.45;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.container{
  width:min(1120px, 92vw);
  margin-inline:auto;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 18px;
  border-radius:14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color:var(--text);
  font-weight:700;
  letter-spacing:0.2px;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,0.18); }
.btn--primary{
  background: linear-gradient(135deg, var(--orange), var(--orange2));
  color:#081022;
  border-color: transparent;
  box-shadow: 0 14px 45px rgba(255,138,31,0.28);
}
.btn--ghost{
  background: rgba(11,43,94,0.25);
  border-color: rgba(255,255,255,0.12);
}
.btn--small{ padding:10px 14px; border-radius:12px; }
.btn--full{ width:100%; }

.note{
  margin:12px 0 0;
  font-size:13px;
  color: var(--muted);
}

/* Header / Nav */
.header{
  position:sticky;
  top:0;
  z-index:50;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(6,11,22,0.65);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:220px;
}
.brand__logo{
  width:46px;
  height:46px;
  border-radius:12px;
  background:#fff;
  object-fit:cover;
  padding:6px;
  border:1px solid rgba(255,255,255,0.18);
}
.brand__text{ display:flex; flex-direction:column; }
.brand__name{ font-weight:900; font-size:14px; letter-spacing:0.6px; }
.brand__tagline{
  font-size:11px;
  color:var(--muted);
  line-height:1.2;
}

.nav__toggle{ display:none; }
.nav__hamburger{
  width:46px;
  height:46px;
  border-radius:14px;
  border:1px solid var(--border);
  display:grid;
  place-items:center;
  background: rgba(255,255,255,0.04);
  cursor:pointer;
}
.nav__hamburger span{
  display:block;
  width:20px;
  height:2px;
  background:rgba(255,255,255,0.85);
  margin:2px 0;
  border-radius:99px;
}
.nav__links{
  display:flex;
  align-items:center;
  gap:16px;
}
.nav__links a{
  font-size:14px;
  font-weight:700;
  color: rgba(255,255,255,0.85);
  padding:10px 10px;
  border-radius:12px;
  transition: background .18s ease;
}
.nav__links a:hover{ background: rgba(255,255,255,0.06); }

/* Mobile menu */
@media (max-width: 860px){
  .nav__hamburger{ display:grid; }
  .nav__links{
    position:absolute;
    left:4vw;
    right:4vw;
    top:72px;
    display:grid;
    padding:14px;
    gap:10px;
    border-radius: var(--radius);
    background: rgba(8,16,34,0.98);
    border:1px solid rgba(255,255,255,0.10);
    box-shadow: var(--shadow);
    transform: translateY(-10px);
    opacity:0;
    pointer-events:none;
    transition: .18s ease;
  }
  .nav__toggle:checked ~ .nav__links{
    transform: translateY(0);
    opacity:1;
    pointer-events:auto;
  }
}

/* Hero */
.hero{
  position:relative;
  padding: 46px 0 36px;
  overflow:hidden;
}
.hero__bg{
  position:absolute;
  inset:0;
  background:
    radial-gradient(800px 320px at 25% 0%, rgba(255,138,31,0.18), transparent 60%),
    radial-gradient(680px 280px at 80% 10%, rgba(14,59,133,0.35), transparent 65%);
  pointer-events:none;
}
.hero__grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap:22px;
  align-items:start;
}
.hero__content{
  padding: 18px 0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  background: rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.12);
  font-size:13px;
  color:var(--muted);
}
.dot{
  width:10px;
  height:10px;
  border-radius:99px;
  background: linear-gradient(135deg, var(--orange), var(--orange2));
  box-shadow: 0 0 0 5px rgba(255,138,31,0.14);
}
.hero__title{
  margin: 16px 0 10px;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height:1.08;
  letter-spacing:-0.8px;
  font-weight: 950;
}
.hero__title span{
  display:block;
  color: rgba(255,255,255,0.85);
  font-weight:900;
  margin-top:8px;
}
.hero__subtitle{
  margin: 0 0 16px;
  color: rgba(255,255,255,0.82);
  font-size: 15.5px;
  max-width: 68ch;
}
.hero__cta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin: 14px 0 18px;
}
.hero__trust{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:12px;
  margin-top:16px;
}
.trust__item{
  padding:12px 12px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.10);
}
.trust__item strong{
  display:block;
  font-size:14px;
  font-weight:950;
}
.trust__item span{
  font-size:12px;
  color: var(--muted);
}

.hero__card{
  padding:16px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border:1px solid rgba(255,255,255,0.10);
  box-shadow: var(--shadow);
}
.hero__cardTop{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.pill{
  font-size:12px;
  font-weight:900;
  padding:8px 10px;
  border-radius:999px;
  background: rgba(14,59,133,0.35);
  border:1px solid rgba(255,255,255,0.12);
}
.pill--alt{
  background: rgba(255,138,31,0.12);
}
.hero__cardTitle{
  margin: 8px 0 10px;
  font-size:18px;
  font-weight:950;
}
.contactMini__row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.contactMini__label{
  font-size:12px;
  color:var(--muted);
  min-width:92px;
}
.contactMini__value{
  font-size:13px;
  font-weight:800;
  text-align:right;
}
.divider{
  height:1px;
  background: rgba(255,255,255,0.08);
  margin: 12px 0;
}

@media (max-width: 960px){
  .hero__grid{ grid-template-columns:1fr; }
  .hero__trust{ grid-template-columns:1fr; }
}

/* Sections */
.section{ padding: 52px 0; }
.section--alt{
  background: rgba(255,255,255,0.02);
  border-top:1px solid rgba(255,255,255,0.05);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.section__head{ margin-bottom:18px; }
.section__title{
  margin:0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 950;
  letter-spacing:-0.6px;
}
.section__lead{
  color: rgba(255,255,255,0.84);
  margin-top:10px;
  max-width: 70ch;
}
.section__sub{
  margin:10px 0 0;
  color: var(--muted);
}

/* About */
.section__grid{
  display:grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap:22px;
}
.infoCards{
  display:grid;
  gap:12px;
  margin-top:16px;
}
.infoCard{
  padding:14px 14px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
}
.infoCard h3{
  margin:0 0 8px;
  font-size:15px;
  font-weight:950;
}
.infoCard p{ margin:6px 0; color: rgba(255,255,255,0.83); }

.asideCard{
  padding:16px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(11,43,94,0.36), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}
.asideCard__title{
  margin:0 0 10px;
  font-size:16px;
  font-weight:950;
}
.checkList{
  margin:0;
  padding-left:18px;
  color: rgba(255,255,255,0.85);
}
.checkList li{ margin:8px 0; }
.asideCard__cta{ margin-top:14px; }

@media (max-width: 960px){
  .section__grid{ grid-template-columns:1fr; }
}

/* Product cards */
.cards{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:14px;
}
.card{
  padding:16px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.10);
  transition: transform .18s ease, border-color .18s ease;
}
.card:hover{
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.18);
}
.card h3{
  margin:0 0 10px;
  font-size:16px;
  font-weight:950;
}
.card p{ margin:0 0 12px; color: rgba(255,255,255,0.82); font-size:14px; }
.tag{
  display:inline-flex;
  margin:4px 6px 0 0;
  padding:7px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:900;
  background: rgba(255,138,31,0.12);
  border:1px solid rgba(255,255,255,0.12);
}
.tag--alt{ background: rgba(14,59,133,0.30); }

@media (max-width: 980px){
  .cards{ grid-template-columns:1fr; }
}

.catalogStrip{
  margin-top:18px;
  border-radius: var(--radius2);
  background: linear-gradient(135deg, rgba(255,138,31,0.13), rgba(14,59,133,0.28));
  border:1px solid rgba(255,255,255,0.12);
  padding:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.catalogStrip__content h3{
  margin:0 0 4px;
  font-weight:950;
}
.catalogStrip__content p{
  margin:0;
  color: rgba(255,255,255,0.84);
  font-size:14px;
}

/* Facilities */
.twoCol{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:14px;
}
.panel{
  padding:16px;
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
}
.panel h3{
  margin:0 0 10px;
  font-size:16px;
  font-weight:950;
}
.bulletList{
  margin:0;
  padding-left:18px;
  color: rgba(255,255,255,0.85);
}
.bulletList li{ margin:7px 0; }

@media (max-width: 960px){
  .twoCol{ grid-template-columns:1fr; }
}

.capacity{
  margin-top:16px;
  padding:16px;
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,0.10);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
}
.capacity__title{
  margin:0 0 12px;
  font-weight:950;
}
.capacity__grid{
  display:grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap:10px;
}
.cap{
  padding:12px;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(11,43,94,0.24);
}
.cap strong{
  display:block;
  font-weight:950;
  font-size:13px;
}
.cap span{
  display:block;
  margin-top:6px;
  color: var(--muted);
  font-size:12px;
}
@media (max-width: 960px){
  .capacity__grid{ grid-template-columns:1fr; }
}

/* Gallery */
.gallery{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:14px;
  margin-top:16px;
}
.gallery__item{
  margin:0;
  border-radius: var(--radius2);
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  box-shadow: 0 10px 35px rgba(0,0,0,0.35);
}
.gallery__item img{
  width:100%;
  height:100%;
  object-fit:cover;
  transform: scale(1.02);
  transition: transform .25s ease;
}
.gallery__item:hover img{ transform: scale(1.06); }

@media (max-width: 860px){
  .gallery{ grid-template-columns:1fr; }
}

/* Testimonials */
.testimonials{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:14px;
  margin-top:16px;
}
.tCard{
  padding:16px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.10);
}
.tCard p{
  margin:0 0 14px;
  color: rgba(255,255,255,0.86);
}
.tCard__meta strong{
  display:block;
  font-weight:950;
}
.tCard__meta span{
  color: var(--muted);
  font-size:13px;
}

@media (max-width: 980px){
  .testimonials{ grid-template-columns:1fr; }
}

/* Video */
.videoWrap{
  margin-top:16px;
  border-radius: var(--radius2);
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
}
.videoWrap iframe{
  width:100%;
  height: 320px;
  border:0;
}
@media (max-width: 860px){
  .videoWrap iframe{ height: 220px; }
}

/* Contact */
.contactGrid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap:20px;
  align-items:start;
}
.contactInfo{
  display:grid;
  gap:12px;
  margin-top:16px;
}
.contactInfo__box{
  padding:14px;
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
}
.contactInfo__box h3{
  margin:0 0 8px;
  font-weight:950;
  font-size:15px;
}
.contactInfo__box p{ margin:8px 0; color: rgba(255,255,255,0.84); }
.contactInfo__box a{ text-decoration:underline; text-underline-offset:4px; }

.formCard{
  padding:16px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(255,138,31,0.10), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}
.formCard__title{
  margin:0 0 12px;
  font-size:16px;
  font-weight:950;
}
.form label{
  display:grid;
  gap:8px;
  font-weight:800;
  font-size:13px;
  color: rgba(255,255,255,0.90);
  margin-bottom:12px;
}
.form input, .form textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(6,11,22,0.55);
  color: var(--text);
  outline:none;
}
.form input:focus, .form textarea:focus{
  border-color: rgba(255,177,74,0.55);
  box-shadow: 0 0 0 4px rgba(255,138,31,0.14);
}

@media (max-width: 960px){
  .contactGrid{ grid-template-columns:1fr; }
}

/* Footer */
.footer{
  padding:34px 0 0;
  border-top:1px solid rgba(255,255,255,0.08);
  background: rgba(0,0,0,0.20);
}
.footer__grid{
  display:grid;
  grid-template-columns: 1.2fr 0.6fr 0.8fr 0.6fr;
  gap:16px;
}
.footer__brand img{
  width:56px;
  height:56px;
  border-radius: 16px;
  padding:8px;
  background:#fff;
  border:1px solid rgba(255,255,255,0.18);
}
.footer h4{
  margin:0 0 10px;
  font-weight:950;
}
.footer a{
  display:block;
  padding:6px 0;
  color: rgba(255,255,255,0.86);
}
.footer p{
  margin:10px 0 0;
  color: var(--muted);
}

.footer__bottom{
  margin-top:22px;
  border-top:1px solid rgba(255,255,255,0.08);
  padding:14px 0;
}
.footer__bottomGrid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color: rgba(255,255,255,0.72);
  font-size:13px;
}
.toTop{
  font-weight:950;
  padding:10px 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
}

@media (max-width: 980px){
  .footer__grid{ grid-template-columns: 1fr 1fr; }
}

/* Floating Buttons */
.floatBtn{
  position:fixed;
  bottom:18px;
  z-index:100;
  padding:12px 14px;
  border-radius: 999px;
  font-weight:950;
  border:1px solid rgba(255,255,255,0.16);
  background: rgba(11,43,94,0.80);
  box-shadow: 0 14px 45px rgba(0,0,0,0.35);
  backdrop-filter: blur(10px);
}
.floatBtn:hover{ transform: translateY(-2px); }
.floatBtn--whatsapp{
  right:18px;
  background: linear-gradient(135deg, #1fd66a, #10b981);
  color:#041a0d;
  border-color: transparent;
}
.floatBtn--call{
  left:18px;
  background: linear-gradient(135deg, var(--orange), var(--orange2));
  color:#081022;
  border-color: transparent;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .btn, .card, .gallery__item img{ transition:none; }
}