/* ===== SANK Construction Ltd ===== */
:root {
  --navy: #0f1a2b;
  --navy-2: #17253b;
  --navy-3: #22324d;
  --gold: #d4a12a;
  --gold-2: #f0c45a;
  --gold-grad: linear-gradient(135deg, #b8861b 0%, #f0c45a 50%, #c8961f 100%);
  --ink: #1b2433;
  --muted: #5b6577;
  --line: #e4e7ec;
  --bg: #ffffff;
  --bg-soft: #f5f6f8;
  --radius: 14px;
  --shadow: 0 18px 40px -18px rgba(15, 26, 43, .35);
  --header-h: 84px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: "Montserrat", sans-serif; line-height: 1.2; margin: 0 0 .6em; color: var(--navy); }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); font-weight: 800; letter-spacing: -.01em; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
address { font-style: normal; }

.container { width: min(1200px, 100% - 2.5rem); margin-inline: auto; }
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.gold { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: "Montserrat", sans-serif; font-weight: 700; font-size: .78rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--gold-2);
  margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 32px; height: 2px; background: var(--gold-grad); }
.eyebrow--dark { color: #a87a12; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .95rem 1.7rem; border-radius: 999px; border: 2px solid transparent;
  font-family: "Montserrat", sans-serif; font-weight: 700; font-size: .92rem; letter-spacing: .02em;
  cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--gold { background: var(--gold-grad); color: var(--navy); box-shadow: 0 10px 24px -10px rgba(212, 161, 42, .8); }
.btn--gold:hover { box-shadow: 0 16px 30px -12px rgba(212, 161, 42, .9); }
.btn--outline { border-color: rgba(255,255,255,.7); color: #fff; }
.btn--outline:hover { background: #fff; color: var(--navy); }
.btn--navy { background: var(--navy); color: #fff; }
.btn--navy:hover { background: var(--navy-3); }
.btn--block { width: 100%; }

/* ===== Header ===== */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h);
  background: rgba(255,255,255,.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; transition: box-shadow .3s, border-color .3s;
}
.header.is-scrolled { box-shadow: 0 8px 24px -16px rgba(15,26,43,.4); border-color: var(--line); }
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.header__logo img { height: 58px; width: auto; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav__link {
  position: relative; font-family: "Montserrat", sans-serif; font-weight: 600; font-size: .92rem; color: var(--navy);
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--gold-grad); transition: width .25s;
}
.nav__link:hover::after, .nav__link.is-active::after { width: 100%; }
.nav__cta { padding: .7rem 1.3rem; }

.nav-toggle { display: none; background: none; border: 0; padding: .5rem; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 2.5px; margin: 5px 0; background: var(--navy); border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; color: #fff; overflow: hidden; padding-top: var(--header-h); }
.hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.06); animation: heroZoom 18s ease-out forwards; }
@keyframes heroZoom { to { transform: scale(1); } }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(15,26,43,.95) 0%, rgba(15,26,43,.85) 50%, rgba(15,26,43,.5) 100%); }
.hero__content { position: relative; max-width: 1200px; padding: 4rem 0; }
.hero h1 { color: #fff; max-width: 14ch; }
.hero__lead { font-size: clamp(1.02rem, 1.6vw, 1.2rem); max-width: 56ch; color: rgba(255,255,255,.85); margin-bottom: 2.2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__scroll { position: absolute; bottom: 2rem; left: 50%; translate: -50% 0; width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.6); border-radius: 20px; }
.hero__scroll span { position: absolute; top: 7px; left: 50%; width: 4px; height: 8px; margin-left: -2px; background: var(--gold-2); border-radius: 2px; animation: scrollDot 1.8s infinite; }
@keyframes scrollDot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* ===== Strip ===== */
.strip { background: var(--navy); color: #fff; position: relative; }
.strip::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--gold-grad); }
.strip__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip__item { display: flex; align-items: center; gap: 1rem; padding: 1.8rem 1.4rem; border-right: 1px solid rgba(255,255,255,.08); }
.strip__item:last-child { border-right: 0; }
.strip__item svg { flex: none; width: 40px; height: 40px; fill: none; stroke: var(--gold-2); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.strip__item strong { display: block; font-family: "Montserrat", sans-serif; font-size: .98rem; }
.strip__item span { font-size: .85rem; color: rgba(255,255,255,.65); }

/* ===== About ===== */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.about__media { position: relative; }
.about__media > img { border-radius: var(--radius); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; box-shadow: var(--shadow); }
.about__media::before { content: ""; position: absolute; inset: -18px 18px 18px -18px; border: 3px solid var(--gold); border-radius: var(--radius); z-index: -1; }
.about__badge { position: absolute; right: -1.5rem; bottom: 2rem; background: #fff; padding: 1rem 1.2rem; border-radius: var(--radius); box-shadow: var(--shadow); width: 220px; }
.about__text > p { color: var(--muted); }
.checklist { list-style: none; padding: 0; margin: 1.6rem 0 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: .8rem 1.4rem; }
.checklist li { position: relative; padding-left: 1.9rem; font-weight: 500; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .2em; width: 1.25rem; height: 1.25rem; border-radius: 50%;
  background: var(--gold-grad);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='10'/%3E%3C/svg%3E") center/contain;
}
.checklist li::after { content: ""; position: absolute; left: .42rem; top: .45em; width: .35rem; height: .6rem; border: solid var(--navy); border-width: 0 2px 2px 0; transform: rotate(45deg); }

/* ===== Section head ===== */
.section__head { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
.section__head p:not(.eyebrow) { color: var(--muted); }
.section__head .eyebrow::after { content: ""; width: 32px; height: 2px; background: var(--gold-grad); }
.section__head--light h2 { color: #fff; }

/* ===== Services ===== */
.services { background: var(--bg-soft); }
.services__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 6px rgba(15,26,43,.05); border: 1px solid var(--line); transition: transform .3s, box-shadow .3s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card__img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.card:hover .card__img img { transform: scale(1.06); }
.card__num { position: absolute; left: 1.2rem; bottom: -1px; background: var(--navy); color: var(--gold-2); font-family: "Montserrat", sans-serif; font-weight: 800; padding: .5rem 1rem; border-radius: 10px 10px 0 0; }
.card__body { padding: 1.8rem 1.8rem 2rem; }
.card__body p { color: var(--muted); }
.card__list { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.card__list li { position: relative; padding-left: 1.3rem; font-size: .95rem; font-weight: 500; }
.card__list li::before { content: ""; position: absolute; left: 0; top: .6em; width: 8px; height: 8px; background: var(--gold); transform: rotate(45deg); }

/* ===== Process ===== */
.process { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.process::after { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border: 60px solid rgba(212,161,42,.06); transform: rotate(45deg); }
.process__grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: s; position: relative; z-index: 1; }
.step { background: var(--navy-2); border: 1px solid rgba(255,255,255,.07); border-radius: var(--radius); padding: 2rem 1.6rem; transition: border-color .3s, transform .3s; }
.step:hover { border-color: var(--gold); transform: translateY(-4px); }
.step__n { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 12px; background: var(--gold-grad); color: var(--navy); font-family: "Montserrat", sans-serif; font-weight: 800; font-size: 1.3rem; margin-bottom: 1.2rem; }
.step h3 { color: #fff; }
.step p { color: rgba(255,255,255,.7); margin: 0; font-size: .95rem; }

/* ===== Gallery ===== */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 260px; gap: 1.2rem; }
.gallery__item { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; }
.gallery__item--tall { grid-row: span 2; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.gallery__item:hover img { transform: scale(1.07); }
.gallery__item figcaption {
  position: absolute; inset: auto 0 0 0; padding: 2.5rem 1.4rem 1.2rem; color: #fff;
  font-family: "Montserrat", sans-serif; font-weight: 700; font-size: 1.1rem;
  background: linear-gradient(to top, rgba(15,26,43,.9), transparent);
}
.gallery__item figcaption span { display: block; font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--gold-2); margin-bottom: .2rem; }

/* ===== Hire ===== */
.hire { position: relative; padding: clamp(4.5rem, 10vw, 7.5rem) 0; color: #fff; overflow: hidden; }
.hire__bg { position: absolute; inset: 0; background-size: cover; background-position: center; background-attachment: fixed; }
.hire__overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,26,43,.95) 0%, rgba(15,26,43,.85) 60%, rgba(15,26,43,.7) 100%); }
.hire__inner { position: relative; display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: center; }
.hire h2 { color: #fff; }
.hire__text > p { color: rgba(255,255,255,.8); max-width: 58ch; }
.hire__chips { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.6rem 0 2rem; }
.hire__chips span { padding: .45rem 1rem; border: 1px solid rgba(240,196,90,.5); border-radius: 999px; font-size: .85rem; color: var(--gold-2); }
.hire__card { background: #fff; color: var(--ink); border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 60px -20px rgba(0,0,0,.6); }
.hire__card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.hire__card div { padding: 1.2rem 1.4rem; border-top: 4px solid var(--gold); }
.hire__card strong { display: block; font-family: "Montserrat", sans-serif; color: var(--navy); }
.hire__card span { color: var(--muted); font-size: .92rem; }

/* ===== Why ===== */
.why__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.why__items { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 1.5rem; }
.why__item { padding: 1.4rem; border-radius: var(--radius); background: var(--bg-soft); border-left: 4px solid var(--gold); }
.why__item h3 { font-size: 1.05rem; margin-bottom: .35rem; }
.why__item p { margin: 0; color: var(--muted); font-size: .94rem; }
.why__media img { border-radius: var(--radius); aspect-ratio: 1 / 1; object-fit: cover; width: 100%; box-shadow: var(--shadow); }

/* ===== Contact ===== */
.contact { background: var(--navy); color: #fff; }
.contact h2 { color: #fff; }
.contact__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }
.contact__info > p { color: rgba(255,255,255,.75); }
.info { display: grid; gap: 1.4rem; margin-top: 2rem; }
.info__row { display: flex; gap: 1rem; align-items: flex-start; }
.info__row svg { flex: none; width: 46px; height: 46px; padding: 11px; border-radius: 12px; background: var(--navy-3); fill: none; stroke: var(--gold-2); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.info__row strong { display: block; font-family: "Montserrat", sans-serif; margin-bottom: .2rem; }
.info__row address, .info__row span { color: rgba(255,255,255,.75); }

.form { background: #fff; color: var(--ink); padding: clamp(1.6rem, 4vw, 2.6rem); border-radius: var(--radius); box-shadow: 0 30px 60px -25px rgba(0,0,0,.6); border-top: 5px solid var(--gold); }
.form h3 { font-size: 1.5rem; }
.form label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 1rem; color: var(--navy); }
.form input, .form select, .form textarea {
  display: block; width: 100%; margin-top: .4rem; padding: .85rem 1rem; font: inherit; font-weight: 400; font-size: .95rem;
  border: 1.5px solid var(--line); border-radius: 10px; background: var(--bg-soft); color: var(--ink); transition: border-color .2s, background .2s;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--gold); background: #fff; }
.form .is-invalid { border-color: #d64545; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form__status { margin: 1rem 0 0; font-weight: 600; min-height: 1.4em; }
.form__status.ok { color: #1f8a4c; }
.form__status.err { color: #d64545; }

.map { margin-top: 4rem; }
.map iframe { width: 100%; height: 360px; border: 0; border-radius: var(--radius); filter: grayscale(.3); }

/* ===== Footer ===== */
.footer { background: #0a1220; color: rgba(255,255,255,.7); padding-top: 4rem; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3rem; }
.footer__logo { background: #fff; display: inline-block; padding: .8rem 1rem; border-radius: 12px; margin-bottom: 1.2rem; }
.footer__logo img { height: 64px; width: auto; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .55rem; }
.footer a:hover { color: var(--gold-2); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 1.4rem 0; font-size: .85rem; }
.footer__bottom p { margin: 0; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__bg { animation: none; transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .nav { gap: 1.3rem; }
  .strip__grid { grid-template-columns: repeat(2, 1fr); }
  .strip__item:nth-child(2) { border-right: 0; }
  .strip__item:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.08); }
  .process__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 72px; }
  .header__logo img { height: 48px; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; padding: 1rem 1.25rem 1.5rem; border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px -20px rgba(15,26,43,.4);
    transform: translateY(-120%); visibility: hidden; transition: transform .35s ease, visibility .35s;
  }
  .nav.is-open { transform: none; visibility: visible; }
  .nav__link { padding: .9rem 0; border-bottom: 1px solid var(--line); }
  .nav__link::after { display: none; }
  .nav__cta { margin-top: 1rem; }

  .about__grid, .why__grid, .contact__grid, .hire__inner { grid-template-columns: 1fr; }
  .about__media { max-width: 520px; margin-inline: auto 18px; }
  .about__badge { right: -10px; width: 180px; }
  .services__grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; grid-auto-rows: 220px; }
  .hire__bg { background-attachment: scroll; }
  .hire__card { max-width: 460px; }
}

@media (max-width: 560px) {
  .container { width: calc(100% - 2rem); }
  .strip__grid, .process__grid, .why__items, .checklist, .form__row, .footer__grid { grid-template-columns: 1fr; }
  .strip__item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .gallery { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .gallery__item--tall { grid-row: span 1; }
  .about__media::before { inset: -12px 12px 12px -12px; }
  .hero__actions .btn { flex: 1 1 100%; }
}