/* ===== Tokens ===== */
:root {
  --navy: #0d1a2c;
  --navy-2: #12233a;
  --navy-3: #1b2f4b;
  --yellow: #f8c400;
  --yellow-2: #ffd21f;
  --blue: #2f7df6;
  --ink: #0f1724;
  --muted: #5b6676;
  --line: #e4e8ee;
  --bg-soft: #f4f6f9;
  --white: #fff;
  --radius: 4px;
  --head: "Poppins", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--body); color: var(--ink); background: var(--white); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--head); margin: 0; }
p { margin: 0; }
[hidden] { display: none !important; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section--dark { background: var(--navy); color: var(--white); }

.i { width: 1em; height: 1em; flex: none; }
.hl { color: var(--yellow); }

/* ===== Eyebrow / titles ===== */
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  font: 600 12px/1 var(--head); letter-spacing: .06em; text-transform: uppercase;
  color: var(--yellow); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 28px; height: 3px; background: var(--yellow); border-radius: 2px; }
.eyebrow--blue { color: var(--blue); }
.eyebrow--blue::before { background: var(--blue); }

.title { font-size: clamp(26px, 3vw, 36px); font-weight: 700; line-height: 1.2; color: var(--ink); }
.title--light { color: var(--white); }
.subtitle { margin-top: 10px; font-size: 16px; color: #3c4655; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 24px; border-radius: var(--radius);
  font: 600 15px/1 var(--head); cursor: pointer; border: 2px solid transparent;
  transition: transform .15s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--sm { padding: 11px 18px; font-size: 13px; }
.btn--yellow { background: var(--yellow); color: var(--navy); }
.btn--yellow:hover { background: var(--yellow-2); box-shadow: 0 8px 20px rgba(248, 196, 0, .25); }
.btn--ghost { border-color: rgba(255,255,255,.85); color: var(--white); }
.btn--ghost:hover { background: var(--white); color: var(--navy); }
.btn--navy { background: var(--navy); color: var(--white); }
.btn--navy:hover { background: var(--navy-3); }

/* ===== Hero ===== */
.hero { position: relative; color: var(--white); background: var(--navy); overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--navy) 0%, rgba(13,26,44,.96) 30%, rgba(13,26,44,.55) 52%, rgba(13,26,44,.1) 75%),
    linear-gradient(0deg, rgba(13,26,44,.9) 0%, rgba(13,26,44,0) 28%),
    url("https://images.unsplash.com/photo-1709244596178-4c2656d02d1e?w=1800&q=80") right center / cover no-repeat;
}
.hero > *:not(.hero__bg) { position: relative; }

.nav { display: flex; align-items: center; justify-content: space-between; padding-top: 18px; padding-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand__mark {
  width: 44px; height: 44px; display: grid; place-items: center;
  background: var(--yellow); color: var(--navy); border-radius: 3px;
  font: 800 22px/1 var(--head);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__text strong { font: 700 21px/1.1 var(--head); letter-spacing: .01em; }
.brand__text small { font: 500 12px/1.4 var(--body); letter-spacing: .14em; opacity: .9; }

.hero__body { display: grid; grid-template-columns: minmax(0, 560px) 1fr; align-items: start; gap: 40px; padding-top: 26px; padding-bottom: 36px; }
.hero h1 { font-size: clamp(40px, 5.6vw, 66px); font-weight: 800; line-height: 1.04; letter-spacing: -.01em; }
.hero h1 .hl { display: block; }
.hero__lead { margin-top: 22px; max-width: 520px; font-size: 16px; line-height: 1.6; color: rgba(255,255,255,.9); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 30px; }

.stock-tag {
  justify-self: end; margin-top: 10px; margin-right: 10px;
  width: 300px; padding: 22px 26px 24px 46px;
  background: var(--yellow); color: #1a1a1a; transform: rotate(5deg);
  box-shadow: 0 18px 40px rgba(0,0,0,.45);
  font-family: "Kalam", cursive; position: relative;
}
.stock-tag__pin { position: absolute; left: 20px; top: 28px; width: 14px; height: 14px; border-radius: 50%; background: #111; }
.stock-tag h2 { font: 700 30px/1.1 "Kalam", cursive; margin-bottom: 8px; }
.stock-tag p { font-size: 18px; line-height: 1.35; }

.hero__usp {
  list-style: none; margin-top: 0; margin-bottom: 0; display: flex; flex-wrap: wrap; gap: 18px 48px;
  padding-top: 8px; padding-bottom: 30px;
}
.hero__usp li { display: flex; align-items: center; gap: 14px; font: 500 13px/1.35 var(--body); }
.hero__usp .i { width: 32px; height: 32px; color: var(--yellow); }

/* ===== Products ===== */
.products { background: var(--bg-soft); }
.product-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-top: 30px; }
.product { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.product:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(13,26,44,.12); }
.product img { width: 100%; aspect-ratio: 4 / 3.3; object-fit: cover; }
.product__body { padding: 14px 14px 18px; }
.product h3 { font-size: 15px; font-weight: 600; }
.product p { margin-top: 6px; font-size: 13px; line-height: 1.5; color: var(--muted); }

/* ===== Calculator ===== */
.calc {
  background:
    radial-gradient(1200px 500px at 0% 100%, rgba(47,125,246,.08), transparent 60%),
    linear-gradient(135deg, #0b1626 0%, #13243b 100%);
}
.calc__inner { display: grid; grid-template-columns: 1fr minmax(0, 520px); gap: 48px; align-items: center; }
.calc__copy p:not(.eyebrow) { margin-top: 20px; max-width: 420px; font-size: 16px; line-height: 1.7; color: rgba(255,255,255,.85); }
.calc__copy .title { font-size: clamp(28px, 3.2vw, 40px); max-width: 460px; }

.calc__card { background: var(--yellow); padding: 24px 28px 28px; border-radius: 2px; color: var(--ink); }
.field { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 500; }
.field--full { margin-bottom: 18px; }
.field input, .field select {
  width: 100%; height: 44px; padding: 0 12px;
  border: 1px solid rgba(0,0,0,.08); border-radius: 3px; background: var(--white);
  font: 500 15px var(--body); color: var(--ink);
}
.field input:focus, .field select:focus { outline: 2px solid var(--navy); outline-offset: 1px; }
.field input:disabled { background: #f5d655; color: #a08000; border-color: transparent; }
.field select { appearance: none; background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230d1a2c' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 14px center; padding-right: 36px; }
.calc__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 18px; }
.calc__result { background: var(--navy); color: var(--white); padding: 18px 16px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.calc__result strong { font: 700 22px/1 var(--head); }
.calc__result span { font-size: 13px; color: rgba(255,255,255,.85); }

/* ===== Tables ===== */
.tables { background: var(--bg-soft); }
.tabs { display: flex; margin-top: 28px; border: 1px solid var(--line); background: var(--white); overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 1 0 auto; padding: 14px 18px; border: 0; border-right: 1px solid var(--line);
  background: transparent; font: 500 13px var(--body); color: var(--ink); cursor: pointer; white-space: nowrap;
}
.tab:last-child { border-right: 0; }
.tab:hover { background: #fff8dc; }
.tab[aria-selected="true"] { background: var(--yellow); font-weight: 600; }

.tables__body { display: grid; grid-template-columns: 1fr 420px; gap: 24px; margin-top: 16px; align-items: start; }
.wt-table-wrap { background: var(--white); overflow-x: auto; }
.wt-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.wt-table th { background: #e9edf2; padding: 13px 16px; font: 600 14px var(--body); text-align: center; }
.wt-table td { padding: 12px 16px; text-align: center; border-bottom: 1px solid var(--line); }
.wt-table tbody tr:nth-child(even) { background: #fafbfc; }
.wt-table tbody tr:hover { background: #fff8dc; }
.wt-table tr.is-hl td { background: var(--yellow); font-weight: 600; }

.formula { background: var(--navy); color: var(--white); padding: 24px 26px 30px; }
.formula__fig { height: 110px; display: grid; place-items: center; margin-bottom: 14px; }
.formula__fig svg { height: 100%; width: auto; }
.formula h3 { font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.formula p { font-size: 15px; line-height: 1.7; color: rgba(255,255,255,.88); }
.formula__sizes-title { margin-top: 24px; }
.chips { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.chip {
  height: 40px; border: 1px solid rgba(255,255,255,.8); background: transparent; color: var(--white);
  font: 500 13px var(--body); cursor: pointer; border-radius: 2px; white-space: nowrap; padding: 0 4px;
}
.chip:hover, .chip.is-active { background: var(--yellow); border-color: var(--yellow); color: var(--navy); }

/* ===== Why ===== */
.why { padding: 40px 0; background: linear-gradient(90deg, #0b1626, #13243b); }
.why__inner { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); align-items: start; }
.why__head .title { font-size: clamp(24px, 2.4vw, 30px); }
.why__head .hl { display: block; }
.why__item { padding: 4px 22px; border-left: 1px solid rgba(255,255,255,.18); }
.why__item .i { width: 34px; height: 34px; color: var(--yellow); margin-bottom: 12px; }
.why__item h3 { font-size: 15px; font-weight: 600; line-height: 1.35; margin-bottom: 8px; }
.why__item p { font-size: 13px; line-height: 1.55; color: rgba(255,255,255,.75); }

/* ===== Industries ===== */
.industries { padding: 32px 0 40px; background: var(--white); }
.industries__inner { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 14px; align-items: start; }
.industries__head { padding-right: 16px; padding-top: 10px; }
.industries__head .eyebrow { font-size: 11px; }
.industries__head .title { font-size: clamp(22px, 2.1vw, 27px); white-space: nowrap; }
.industries__head p:not(.eyebrow) { margin-top: 10px; font-size: 14px; line-height: 1.6; color: var(--muted); }
.industry img { width: 100%; aspect-ratio: 16 / 10.5; object-fit: cover; border-radius: 2px; }
.industry h3 { margin-top: 10px; font-size: 15px; font-weight: 600; }
.industry p { margin-top: 4px; font-size: 13px; line-height: 1.45; color: var(--muted); }

/* ===== CTA ===== */
.cta {
  padding: 40px 0;
  background:
    linear-gradient(90deg, rgba(13,26,44,.25) 0%, rgba(13,26,44,.9) 30%, rgba(13,26,44,.96) 100%),
    url("https://images.unsplash.com/photo-1538474705339-e87de81450e8?w=1600&q=80") left center / cover no-repeat;
  color: var(--white);
}
.cta__inner { display: flex; align-items: center; justify-content: center; gap: 72px; flex-wrap: wrap; }
.cta .eyebrow { font-size: 11px; margin-bottom: 10px; }
.cta h2 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 700; }
.cta p:not(.eyebrow) { margin-top: 8px; font-size: 14px; color: rgba(255,255,255,.85); }

.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Footer ===== */
.footer { background: #08111e; color: rgba(255,255,255,.8); font-size: 14px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1.2fr 1fr; gap: 40px; padding-top: 48px; padding-bottom: 40px; }
.footer__brand p { margin-top: 16px; max-width: 340px; line-height: 1.65; }
.footer h3 { color: var(--white); font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer__list li { display: flex; gap: 12px; align-items: flex-start; line-height: 1.55; margin-bottom: 12px; }
.footer__list .i { width: 18px; height: 18px; color: var(--yellow); margin-top: 2px; }
.footer__links li { margin-bottom: 10px; }
.footer a:hover { color: var(--yellow); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 16px 0; font-size: 13px; color: rgba(255,255,255,.6); }
.footer__bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-right: 100px; }

/* ===== WhatsApp float ===== */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 50;
  width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center;
  background: #25d366; color: var(--white); box-shadow: 0 10px 24px rgba(0,0,0,.3);
  border: 3px solid var(--white); transition: transform .2s ease;
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 32px; height: 32px; }

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
  .tables__body { grid-template-columns: 1fr; }
  .why__inner { grid-template-columns: repeat(4, 1fr); row-gap: 28px; }
  .why__head { grid-column: 1 / -1; }
  .why__item:nth-child(2) { border-left: 0; padding-left: 0; }
  .industries__inner { grid-template-columns: repeat(4, 1fr); }
  .industries__head { grid-column: 1 / -1; padding: 0 0 8px; }
}
@media (max-width: 860px) {
  .hero__body { grid-template-columns: 1fr; }
  .hero__bg {
    background:
      linear-gradient(180deg, rgba(13,26,44,.92) 0%, rgba(13,26,44,.8) 55%, rgba(13,26,44,.92) 100%),
      url("https://images.unsplash.com/photo-1709244596178-4c2656d02d1e?w=1000&q=80") center / cover no-repeat;
  }
  .hero__body { padding-top: 16px; }
  .stock-tag { justify-self: start; width: 260px; transform: rotate(3deg); margin: 4px 0 20px 6px; }
  .stock-tag h2 { font-size: 26px; }
  .stock-tag p { font-size: 16px; }
  .calc__inner { grid-template-columns: 1fr; gap: 32px; }
  .why__inner { grid-template-columns: repeat(2, 1fr); }
  .why__item:nth-child(4) { border-left: 0; padding-left: 0; }
  .industries__inner { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section { padding: 48px 0; }
  .brand { gap: 10px; }
  .brand__text strong { font-size: 16px; }
  .brand__text small { font-size: 10px; }
  .brand__mark { width: 38px; height: 38px; font-size: 19px; }
  .nav .btn--sm { padding: 10px 12px; font-size: 12px; }
  .hero__ctas .btn { flex: 1 1 auto; }
  .hero__usp { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .calc__card { padding: 20px 16px 22px; }
  .calc__row { grid-template-columns: 1fr 1fr; gap: 12px; }
  .calc__row .field:nth-child(3) { grid-column: 1 / -1; }
  .formula { padding: 22px 18px 24px; }
  .chips { gap: 8px; }
  .cta__inner { justify-content: flex-start; gap: 24px; }
  .cta__actions .btn { flex: 1 1 auto; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .footer__bottom { padding-bottom: 84px; }
  .footer__bottom .container { padding-right: 16px; flex-direction: column; }
  .wa-float { width: 54px; height: 54px; right: 16px; bottom: 16px; }
}