/* SRIET Industries — site styles
   Palette: ink #16222E · paper #F6F4EF · copper #B4652E · rose #A85D74 · teal #1E6E70 */
:root {
  --ink: #16222E;
  --ink-soft: #3C4A57;
  --paper: #F6F4EF;
  --line: #DAD5CA;
  --copper: #B4652E;
  --rose: #A85D74;
  --teal: #1E6E70;
  --white: #FFFFFF;
  --display: "Archivo", sans-serif;
  --body: "Public Sans", sans-serif;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { font-family: var(--body); color: var(--ink); background: var(--paper); line-height: 1.6; font-size: 1rem; }
img { max-width: 100%; display: block; }
a { color: var(--ink); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 12px; top: 12px; background: var(--ink); color: var(--white); padding: 8px 14px; z-index: 100; }
:focus-visible { outline: 3px solid var(--copper); outline-offset: 2px; }

/* Signature: three-strand motif */
.strands { display: flex; flex-direction: column; gap: 6px; }
.strands i { display: block; height: 4px; border-radius: 2px; }
.strands .s1 { background: var(--copper); width: 100%; }
.strands .s2 { background: var(--rose); width: 78%; }
.strands .s3 { background: var(--teal); width: 56%; }

/* Header */
.site-header { background: var(--ink); color: var(--white); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--white); }
.brand-mark { display: flex; flex-direction: column; gap: 3px; width: 26px; }
.brand-mark i { height: 4px; border-radius: 2px; }
.brand-mark i:nth-child(1) { background: var(--copper); }
.brand-mark i:nth-child(2) { background: var(--rose); width: 80%; }
.brand-mark i:nth-child(3) { background: var(--teal); width: 60%; }
.brand-text { font-family: var(--display); font-weight: 800; font-stretch: 115%; letter-spacing: 0.05em; font-size: 1.85rem; line-height: 1; display: flex; flex-direction: column; }
.brand-sub { font-family: var(--body); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.24em; text-transform: uppercase; color: #C7D0D8; margin-top: 5px; }
.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a { color: #DDE4EA; text-decoration: none; font-size: 0.92rem; font-weight: 500; padding: 8px 12px; border-radius: 4px; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--white); background: rgba(255,255,255,0.09); }
.site-nav .nav-cta { border: 1px solid var(--copper); color: var(--white); }
.site-nav .nav-cta:hover { background: var(--copper); }
.nav-toggle { display: none; background: none; border: 1px solid #45535F; color: var(--white); padding: 8px 14px; border-radius: 4px; font: inherit; }

/* Hero */
.hero { background: var(--ink); color: var(--white); padding: 72px 0 56px; }
.eyebrow { font-family: var(--display); font-stretch: 110%; font-weight: 600; font-size: 0.74rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--copper); margin-bottom: 18px; }
.hero .eyebrow { color: #C98A5A; }
.hero-title { font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: clamp(2.1rem, 5.4vw, 3.6rem); line-height: 1.06; letter-spacing: -0.01em; margin-bottom: 20px; }
.hero-lede { max-width: 620px; color: #C7D0D8; font-size: 1.06rem; margin-bottom: 34px; }
.hero-strands { max-width: 380px; }

/* Unit cards */
.units-band { padding: 64px 0; }
.units-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.unit-card { background: var(--white); border: 1px solid var(--line); border-top: 5px solid var(--accent); border-radius: 6px; padding: 26px 24px 22px; text-decoration: none; display: flex; flex-direction: column; gap: 10px; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.unit-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(22,34,46,0.10); }
.unit-index { font-family: var(--display); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.18em; color: var(--accent); }
.unit-card h2 { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: 1.35rem; line-height: 1.15; }
.unit-tagline { color: var(--accent); font-weight: 600; font-size: 0.92rem; }
.unit-summary { color: var(--ink-soft); font-size: 0.95rem; flex: 1; }
.unit-more { font-weight: 600; font-size: 0.9rem; color: var(--ink); }
.unit-more::after { content: " →"; color: var(--accent); }

/* About band */
.about-band { background: var(--white); border-block: 1px solid var(--line); padding: 64px 0; }
.about-inner { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; }
.about-inner h2, .section-title { font-family: var(--display); font-stretch: 114%; font-weight: 700; font-size: clamp(1.5rem, 3vw, 2rem); line-height: 1.15; }
.about-copy p { margin-bottom: 14px; color: var(--ink-soft); }

/* CTA */
.cta-band { background: var(--ink); color: var(--white); padding: 56px 0; }
.cta-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.cta-inner h2 { font-family: var(--display); font-stretch: 114%; font-weight: 700; font-size: clamp(1.4rem, 3vw, 1.9rem); }
.cta-inner p { color: #C7D0D8; }
.btn { display: inline-block; font-weight: 600; text-decoration: none; padding: 12px 22px; border: 2px solid var(--ink); border-radius: 4px; color: var(--ink); background: transparent; font-size: 0.95rem; cursor: pointer; font-family: var(--body); }
.btn:hover { background: var(--ink); color: var(--white); }
.btn-solid { background: var(--copper); border-color: var(--copper); color: var(--white); }
.btn-solid:hover { background: #96521F; border-color: #96521F; color: var(--white); }
.cta-band .btn-solid { border-color: var(--copper); }

/* Page head / body */
.page-head { background: var(--ink); color: var(--white); padding: 56px 0 44px; }
.page-head h1 { font-family: var(--display); font-stretch: 116%; font-weight: 800; font-size: clamp(1.9rem, 4.5vw, 2.8rem); line-height: 1.08; }
.unit-head { border-bottom: 6px solid var(--accent); }
.unit-tagline-lg { color: #C7D0D8; font-size: 1.08rem; margin-top: 10px; }
.page-body { padding: 52px 0; }
.page-body p { margin-bottom: 16px; color: var(--ink-soft); font-size: 1.02rem; }

/* Products */
.products-band { background: var(--white); border-top: 1px solid var(--line); padding: 56px 0 64px; }
.products-band .section-title { margin-bottom: 26px; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product-card { border: 1px solid var(--line); border-radius: 6px; padding: 20px; background: var(--paper); }
.product-card img { border-radius: 4px; margin-bottom: 14px; aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.product-card h3 { font-family: var(--display); font-weight: 700; font-size: 1.08rem; margin-bottom: 6px; }
.product-card p { font-size: 0.93rem; color: var(--ink-soft); }
.product-specs { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); font-size: 0.85rem !important; }

/* Forms & notices */
.form { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 0.92rem; }
.form input, .form select, .form textarea { font: inherit; padding: 10px 12px; border: 1px solid #B9B2A4; border-radius: 4px; background: var(--white); color: var(--ink); }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--copper); outline: 2px solid rgba(180,101,46,0.25); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hp { position: absolute; left: -9999px; height: 0; width: 0; opacity: 0; }
.notice { padding: 14px 16px; border-radius: 5px; margin-bottom: 22px; font-size: 0.95rem; }
.notice-ok { background: #E3EFE7; border: 1px solid #9CC3A8; color: #1E4B2C; }
.notice-err { background: #F6E4E0; border: 1px solid #D8A79C; color: #7A2E1D; }
.contact-meta { border-top: 1px solid var(--line); padding-top: 22px; }
.contact-meta p { margin-bottom: 6px; }

/* Footer */
.site-footer { background: var(--ink); color: #C7D0D8; margin-top: 0; }
.site-footer .strands { max-width: none; }
.site-footer .strands i { border-radius: 0; height: 3px; width: 100% !important; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; padding: 44px 24px 28px; }
.footer-brand { font-family: var(--display); font-stretch: 114%; font-weight: 700; color: var(--white); font-size: 1.1rem; margin-bottom: 8px; }
.footer-head { font-weight: 700; color: var(--white); font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; }
.footer-link { display: block; color: #C7D0D8; text-decoration: none; margin-bottom: 7px; font-size: 0.95rem; }
.footer-link:hover { color: var(--white); text-decoration: underline; }
.footer-muted { font-size: 0.92rem; }
.footer-legal { border-top: 1px solid #2C3945; padding-top: 18px; padding-bottom: 22px; font-size: 0.85rem; color: #8FA0AE; }

/* Responsive */
@media (max-width: 900px) {
  .units-grid, .products-grid { grid-template-columns: 1fr 1fr; }
  .about-inner { grid-template-columns: 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; width: 100%; flex-direction: column; padding: 10px 0 16px; }
  .site-nav.open { display: flex; }
  .header-inner { flex-wrap: wrap; }
  .units-grid, .products-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 44px; }
}

/* Logo tile (navy mark on cream, as in the company letterhead) */
.brand-logo { display: grid; place-items: center; width: 48px; height: 48px; background: #FBFAE6; border-radius: 8px; }
.brand-logo img { width: 34px; height: auto; }

/* Authorised dealer strip */
.dealer-band { background: var(--white); border-bottom: 1px solid var(--line); }
.dealer-inner { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 14px 24px; }
.dealer-label { font-family: var(--display); font-stretch: 110%; font-weight: 600; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-soft); }
.dealer-brands { display: flex; gap: 10px; flex-wrap: wrap; }
.dealer-brand { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: 0.95rem; color: var(--ink); border: 1px solid var(--line); border-radius: 4px; padding: 5px 14px; background: var(--paper); }

/* Unit illustrations */
.unit-ill { display: block; margin: -6px -4px 4px; }
.unit-ill img { width: 100%; height: 120px; object-fit: contain; }
.unit-head-inner { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: center; }
.unit-head-ill img { width: 100%; max-height: 170px; object-fit: contain; }
@media (max-width: 640px) { .unit-head-inner { grid-template-columns: 1fr; } .unit-head-ill { display: none; } }

/* Bigger header logo */
.brand-logo { width: 62px; height: 62px; border-radius: 10px; }
.brand-logo img { width: 46px; }
.header-inner { min-height: 82px; }

/* Dealer logo images */
.dealer-logo { display: inline-flex; align-items: center; background: var(--white); border: 1px solid var(--line); border-radius: 4px; padding: 6px 14px; }
.dealer-logo img { height: 32px; width: auto; }

/* Home showcase gallery */
.showcase-band { background: var(--white); border-top: 1px solid var(--line); padding: 48px 0 56px; }
.showcase-band .eyebrow { margin-bottom: 22px; }
.showcase-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.showcase-tile { margin: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--paper); }
.showcase-tile img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; display: block; }
.showcase-tile figcaption { font-size: 0.8rem; font-weight: 600; text-align: center; padding: 8px 6px; color: var(--ink-soft); }
@media (max-width: 900px) { .showcase-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .showcase-grid { grid-template-columns: repeat(2, 1fr); } }

/* Product images: illustrations sit flush */
.product-card img { background: transparent; }

.brand-tag { font-family: var(--body); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.02em; text-transform: none; color: #C98A5A; margin-top: 3px; }
@media (max-width: 640px) { .brand-text { font-size: 1.5rem; } .brand-tag { display: none; } }

/* Contact form status messages */
.form-success { background: #E3EFE7; border: 1px solid #9CC3A8; color: #1E4B2C; padding: 14px 18px; border-radius: 6px; margin-bottom: 20px; }
.form-error { background: #F6E4E0; border: 1px solid #D8A79C; color: #7A2E1D; padding: 12px 16px; border-radius: 6px; margin-bottom: 18px; }

/* Masthead banner — SRIET... Empowering Lives */
.masthead-banner { width: 100%; background: var(--ink); border-bottom: 3px solid var(--copper); }
.masthead-banner picture { display: block; }
.masthead-banner img { width: 100%; display: block;
  height: clamp(180px, 24vw, 380px); object-fit: cover; object-position: center top; }
@media (max-width: 760px) { .masthead-banner img { height: auto; } }

/* Solar unit poster */
.unit-poster { margin: 26px 0 0; }
.unit-poster img { width: 100%; max-width: 420px; height: auto; display: block; margin: 0 auto;
  border: 1px solid var(--line); border-radius: 8px; }

/* Contact map */
.map-embed { margin-top: 18px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.map-embed iframe { display: block; }