/* Neminath Casting & Alloys — Plain CSS, mobile-first, grid + flexbox */
:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --primary: #0d1b2a;        /* deep navy */
  --primary-2: #1b2a3e;
  --accent: #e85d1f;         /* molten orange */
  --accent-hover: #c84a10;
  --text: #0d1b2a;
  --muted: #5b6573;
  --border: #e5e5e0;
  --radius: 8px;
  --container: 1200px;
  --shadow-lg: 0 18px 40px -20px rgba(13,27,42,.35);
  --font-display: "Archivo", "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; line-height: 1.1; margin: 0; letter-spacing: -.01em; }
h1 { font-size: clamp(2.25rem, 5.5vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 3rem); }
h3 { font-size: 1.15rem; }
p  { margin: 0; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 4rem 0; }
@media (min-width: 768px) { .section { padding: 6rem 0; } }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--accent);
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.4rem;
  font-family: var(--font-display); font-weight: 700; font-size: .9rem;
  letter-spacing: .02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer; transition: all .2s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-outline { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.btn-outline:hover { background: #fff; color: var(--primary); }
.btn-ghost { border-color: var(--border); color: var(--primary); background: var(--surface); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* HEADER */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: .65rem; font-family: var(--font-display); font-weight: 800; }
.brand-mark { width: 36px; height: 36px; border-radius: 6px; background: var(--primary); color: var(--accent); display: grid; place-items: center; font-size: 1rem; }
.brand-logo { width: 40px; height: 40px; border-radius: 6px; object-fit: contain; background: #fff; }
.brand-name { font-size: 1.05rem; line-height: 1; }
.brand-sub { display: block; font-size: .65rem; color: var(--muted); font-weight: 500; letter-spacing: .14em; text-transform: uppercase; margin-top: 3px; }

.nav-links { display: none; }
.nav-links a {
  font-size: .92rem; font-weight: 600; color: var(--primary);
  padding: .5rem .25rem; border-bottom: 2px solid transparent; transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); border-color: var(--accent); }
.nav-cta { display: none; }

.nav-toggle {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  width: 42px; height: 42px; display: grid; place-items: center; cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 18px; height: 2px; background: var(--primary); position: relative; transition: .2s;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after  { position: absolute; top: 6px; }

.mobile-menu {
  display: none; flex-direction: column; gap: .25rem;
  padding: 1rem 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
  background: #fff;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: .9rem .25rem; font-weight: 600;
  border-bottom: 1px solid var(--border); color: var(--primary);
}
.mobile-menu .btn { margin-top: .75rem; justify-content: center; }

@media (min-width: 900px) {
  .nav-links { display: flex; gap: 1.75rem; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-menu { display: none !important; }
}

/* HERO with video */
.hero {
  position: relative; overflow: hidden;
  background: var(--primary); color: #fff;
  min-height: 92vh; display: flex; align-items: center;
}
.hero-video, .hero-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .45; z-index: 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(110deg, var(--primary) 20%, rgba(13,27,42,.85) 55%, rgba(13,27,42,.25) 100%);
}
.hero .container { position: relative; z-index: 2; padding-top: 4rem; padding-bottom: 4rem; }
.hero h1 { margin-top: 1rem; max-width: 18ch; }
.hero h1 .accent { color: var(--accent); }
.hero p.lead { margin-top: 1.25rem; max-width: 56ch; color: rgba(255,255,255,.8); font-size: 1.05rem; }
.hero-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .75rem; }

.hero-stats {
  margin-top: 3.5rem; padding-top: 1.75rem;
  border-top: 1px solid rgba(255,255,255,.15);
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem;
  max-width: 720px;
}
@media (min-width: 700px) { .hero-stats { grid-template-columns: repeat(4, 1fr); } }
.hero-stats dt { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800; color: var(--accent); }
.hero-stats dd { margin: .35rem 0 0; font-size: .7rem; text-transform: uppercase; letter-spacing: .14em; color: rgba(255,255,255,.65); }

/* PAGE HERO (interior pages) */
.page-hero { background: var(--primary); color: #fff; padding: 5rem 0 4rem; }
.page-hero h1 { margin-top: 1rem; max-width: 22ch; font-size: clamp(2rem, 4.5vw, 3.5rem); }
.page-hero p { margin-top: 1.25rem; max-width: 60ch; color: rgba(255,255,255,.75); }

/* CARDS GRID */
.feature-grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; margin-top: 3rem; }
@media (min-width: 600px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card .icon {
  width: 44px; height: 44px; border-radius: 6px;
  background: rgba(232,93,31,.12); color: var(--accent);
  display: grid; place-items: center; font-size: 1.25rem; font-weight: 800;
}
.card h3 { margin-top: 1.25rem; }
.card p  { margin-top: .5rem; color: var(--muted); font-size: .9rem; }

/* SPLIT */
.split { display: grid; gap: 2.5rem; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; gap: 4rem; } }
.split.reverse > :first-child { order: 2; }
@media (min-width: 900px) { .split.reverse > :first-child { order: 0; } }

.split-images { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.split-images img { border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; }
.split-images img:nth-child(2) { margin-top: 2.5rem; }

.muted { color: var(--muted); }
.mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }

/* PRODUCTS */
.prod-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .prod-grid { grid-template-columns: repeat(2, 1fr); } }
.prod-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.prod-card .check { color: var(--accent); font-size: 1.25rem; }
.prod-card h4 { margin-top: .75rem; font-family: var(--font-display); font-size: 1.05rem; }
.prod-card .label { margin-top: .85rem; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.prod-card .value { font-size: .9rem; color: var(--text); }

.sticky-side { position: sticky; top: 100px; }

/* GALLERY */
.gallery { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 2.5rem; }
@media (min-width: 600px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .gallery { grid-template-columns: repeat(3, 1fr); } }
.gallery figure { margin: 0; position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery figure:hover img { transform: scale(1.05); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to top, rgba(13,27,42,.9), transparent);
  color: #fff; padding: 1rem 1.25rem; font-family: var(--font-display); font-weight: 700;
}

/* STANDARDS */
.standards-grid { display: grid; gap: .75rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 600px) { .standards-grid { grid-template-columns: repeat(3, 1fr); } }
.standard {
  text-align: center; padding: 1.1rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  font-family: var(--font-display); font-weight: 700; letter-spacing: .04em;
}

/* BAND (alt section background) */
.band { background: #efeeea; }
.band-dark { background: var(--primary); color: #fff; }
.band-dark .muted { color: rgba(255,255,255,.7); }
.band-dark .eyebrow { color: var(--accent); }

/* CTA */
.cta {
  background: var(--primary); color: #fff;
}
.cta-inner {
  display: flex; flex-direction: column; gap: 1.25rem;
  padding: 3rem 0;
}
@media (min-width: 768px) {
  .cta-inner { flex-direction: row; align-items: center; justify-content: space-between; padding: 4rem 0; }
}
.cta h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
.cta p  { color: rgba(255,255,255,.7); max-width: 50ch; margin-top: .5rem; }

/* CONTACT */
.contact-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.2fr 1fr; gap: 4rem; } }

.form-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.field { display: flex; flex-direction: column; gap: .35rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.field input, .field select, .field textarea {
  font: inherit; padding: .8rem .9rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: #fff; color: var(--text); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field textarea { min-height: 120px; resize: vertical; }

.info-list { list-style: none; padding: 0; margin: 1.5rem 0 0; display: flex; flex-direction: column; gap: 1.25rem; }
.info-list li { display: flex; gap: .9rem; }
.info-list .ico { flex: 0 0 38px; height: 38px; border-radius: 6px; background: rgba(232,93,31,.12); color: var(--accent); display: grid; place-items: center; font-weight: 800; }
.info-list strong { display: block; font-family: var(--font-display); }
.info-list span { color: var(--muted); font-size: .9rem; }

/* FOOTER */
.site-footer { background: var(--primary-2); color: rgba(255,255,255,.7); padding: 3.5rem 0 1.5rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer h4 { color: #fff; font-size: .9rem; text-transform: uppercase; letter-spacing: .12em; }
.site-footer ul { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-direction: column; gap: .5rem; }
.site-footer a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 2.5rem; padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-direction: column; gap: .5rem; font-size: .8rem;
}
@media (min-width: 700px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }

/* utility */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* File upload field */
.file-drop { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; border: 1px dashed var(--border); border-radius: var(--radius); padding: .9rem 1rem; background: var(--surface); }
.file-drop input[type="file"] { font-size: .85rem; }
.file-hint { font-size: .78rem; color: var(--muted); }
.form-error { color: #c0392b; font-size: .85rem; font-weight: 600; }