/* ============================================================
   COMPONENTS — components.css
   Reusable elements: preloader, nav, buttons, product cards,
   equipment cards, quality cards, contact cards, tags, footer.
   ============================================================ */


/* ── Preloader ───────────────────────────────────────────── */

#preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hide { opacity: 0; visibility: hidden; pointer-events: none; }

.preloader-inner { text-align: center; }
.preloader-line {
  width: 120px; height: 2px;
  background: var(--bg-elevated);
  margin: 0 auto; border-radius: 1px; overflow: hidden;
}
.preloader-line::after {
  content: ''; display: block; width: 40%; height: 100%;
  background: var(--accent-copper);
  animation: preloaderSlide 1s ease-in-out infinite;
}
.preloader-text {
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.2em; color: var(--text-muted);
  margin-top: 1rem; text-transform: uppercase;
}


/* ── Navigation ──────────────────────────────────────────── */

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 0;
  transition: all 0.4s ease;
  background: transparent;
}
.nav.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 0;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1280px; margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
}

/* Logo */
.nav-logo {
  display: flex; align-items: center; gap: 0.75rem;
  text-decoration: none; color: var(--text-primary);
}
.nav-logo-img {
  height: 48px; width: auto;
  filter: brightness(0) invert(1);
  transition: filter 0.3s ease;
}

@media (min-width: 901px) {
  .nav-logo-img { height: 42px; }
}
.nav-logo-text {
  font-family: var(--font-body); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.25em; text-transform: uppercase;
}
.nav-logo-text span {
  display: block; font-weight: 300; letter-spacing: 0.15em;
  color: var(--text-secondary); font-size: 0.6rem;
}

/* Links */
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--text-secondary);
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.15em; text-transform: uppercase;
  transition: color 0.3s ease; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--accent-copper);
  transition: width 0.3s ease;
}
.nav-links a:hover        { color: var(--accent-copper); }
.nav-links a:hover::after  { width: 100%; }

/* CTA button in nav */
.nav-cta {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 0.6rem 1.5rem;
  border: 1px solid var(--accent-copper); color: var(--accent-copper);
  background: transparent; cursor: pointer; text-decoration: none;
  transition: all 0.3s ease;
}
.nav-cta:hover { background: var(--accent-copper); color: var(--bg-primary); }

/* Mobile toggle */
.nav-toggle {
  display: none; background: none; border: none;
  cursor: pointer; padding: 0.5rem;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text-primary); margin: 5px 0;
  transition: all 0.3s ease;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 1.5rem;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10, 14, 23, 0.97);
    backdrop-filter: blur(20px);
    padding: 2rem clamp(1.5rem, 4vw, 4rem);
    border-bottom: 1px solid var(--border-subtle);
  }
}


/* ── Buttons ─────────────────────────────────────────────── */

.btn-primary {
  display: inline-flex; align-items: center; gap: 0.75rem;
  padding: 1rem 2.25rem;
  background: var(--accent-copper); color: var(--bg-primary);
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  border: none; cursor: pointer; text-decoration: none;
  transition: all 0.3s ease;
}
.btn-primary:hover { background: var(--accent-copper-light); transform: translateY(-1px); }
.btn-primary svg   { width: 16px; height: 16px; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.75rem;
  padding: 1rem 2.25rem;
  background: transparent; color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  border: 1px solid var(--border-accent);
  cursor: pointer; text-decoration: none;
  transition: all 0.3s ease;
}
.btn-outline:hover { border-color: var(--accent-copper); color: var(--accent-copper); }


/* ── Product cards ───────────────────────────────────────── */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px; background: var(--border-subtle); margin-top: 1rem;
}
.product-card {
  background: var(--bg-primary); padding: 2rem;
  transition: all 0.35s ease; position: relative; overflow: hidden;
}
.product-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 0; height: 2px; background: var(--accent-copper);
  transition: width 0.4s ease;
}
.product-card:hover::before { width: 100%; }
.product-card:hover         { background: var(--bg-elevated); }
.product-icon {
  width: 32px; height: 32px; margin-bottom: 1.25rem;
  color: var(--accent-copper); opacity: 0.7;
}
.product-card h3 {
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.04em; margin-bottom: 0.6rem;
}
.product-card p {
  font-size: 0.85rem; color: var(--text-secondary);
  font-weight: 300; line-height: 1.65;
}


/* ── Equipment cards ─────────────────────────────────────── */

.equipment-grid { display: grid; gap: 1.5rem; margin-top: 1rem; }

.equip-card {
  padding: 1.75rem; background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}
.equip-card:hover { border-color: var(--border-accent); }
.equip-card h4 {
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.equip-card p {
  font-size: 0.83rem; color: var(--text-secondary);
  font-weight: 300; line-height: 1.65;
}
.equip-tag {
  display: inline-block; margin-top: 0.75rem;
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--accent-copper); letter-spacing: 0.1em;
  text-transform: uppercase;
}


/* ── Quality cards ───────────────────────────────────────── */

.quality-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--border-subtle);
}
.quality-card {
  background: var(--bg-secondary); padding: 2.5rem; text-align: center;
  transition: all 0.3s ease;
}
.quality-card:hover { background: var(--bg-elevated); }
.quality-card-icon {
  font-family: var(--font-display); font-size: 2rem;
  color: var(--accent-copper); margin-bottom: 1rem;
}
.quality-card h3 {
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.08em;
  margin-bottom: 0.6rem; text-transform: uppercase;
}
.quality-card p {
  font-size: 0.85rem; color: var(--text-secondary);
  font-weight: 300; line-height: 1.65;
}
@media (max-width: 768px) {
  .quality-grid { grid-template-columns: 1fr; }
}


/* ── Contact cards ───────────────────────────────────────── */

.contact-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--border-subtle); margin-top: 2rem;
}
.contact-card { background: var(--bg-primary); padding: 2.5rem; }
.contact-card-label {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.3em; color: var(--accent-copper);
  text-transform: uppercase; margin-bottom: 1rem;
}
.contact-card h3 { font-size: 0.95rem; font-weight: 500; margin-bottom: 0.5rem; }
.contact-card p {
  font-size: 0.88rem; color: var(--text-secondary);
  font-weight: 300; line-height: 1.7;
}
.contact-card a {
  color: var(--accent-copper); text-decoration: none;
  font-weight: 500; transition: opacity 0.3s ease;
}
.contact-card a:hover { opacity: 0.8; }
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-card a.btn-primary {
  color: var(--bg-primary);
}
.contact-card a.btn-primary:hover {
  opacity: 1;
  background: var(--accent-copper-light);
}

/* ── Tags & badges ───────────────────────────────────────── */

.industry-tag {
  padding: 0.6rem 1.25rem; border: 1px solid var(--border-subtle);
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.1em;
  color: var(--text-secondary); text-transform: uppercase;
  transition: all 0.3s ease; cursor: default;
}
.industry-tag:hover {
  border-color: var(--accent-copper); color: var(--accent-copper);
  background: var(--accent-copper-glow);
}

.cert-badge {
  padding: 0.4rem 0.8rem; border: 1px solid var(--border-subtle);
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.12em; color: var(--text-muted);
  text-transform: uppercase;
}

.supplier-name {
  font-family: var(--font-body); font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-muted); transition: color 0.3s ease;
}
.supplier-name:hover { color: var(--accent-copper); }


/* ── Photo gallery (infrastructure) ───────────────────────── */

.photo-grid {
  display: grid; gap: 4px; margin-top: 2.5rem;
}
.photo-grid--facility {
  grid-template-columns: 1fr 1.2fr 1fr;
  grid-template-rows: 260px 260px;
}
.photo-grid--equipment {
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 220px;
}
.photo-grid--quality {
  grid-template-columns: 1fr 1.5fr 1fr;
  grid-template-rows: 220px;
}

.photo-cell {
  position: relative; overflow: hidden;
  background: var(--bg-elevated);
}
.photo-cell img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.3s ease;
  filter: grayscale(20%) brightness(0.85);
}
.photo-cell:hover img {
  transform: scale(1.04);
  filter: grayscale(0%) brightness(1);
}
.photo-cell--span-2 { grid-column: span 2; }
.photo-cell--span-row { grid-row: span 2; }

.photo-cell-label {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 0.6rem 0.8rem;
  background: linear-gradient(transparent, rgba(10, 14, 23, 0.85));
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .photo-grid--facility { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .photo-grid--equipment { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; }
  .photo-grid--quality { grid-template-columns: 1fr; grid-template-rows: auto; }
  .photo-cell { min-height: 200px; }
  .photo-cell--span-2 { grid-column: span 1; }
  .photo-cell--span-row { grid-row: span 1; }
}


/* ── Product image strip ─────────────────────────────────── */

.product-strip {
  display: flex; gap: 4px; margin-top: 2rem;
  overflow-x: auto; scrollbar-width: none;
  padding-bottom: 0.5rem;
}
.product-strip::-webkit-scrollbar { display: none; }
.product-strip-item {
  flex: 0 0 180px; height: 140px;
  position: relative; overflow: hidden;
  background: var(--bg-elevated);
}
.product-strip-item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(15%) brightness(0.9);
  transition: all 0.4s ease;
}
.product-strip-item:hover img {
  filter: grayscale(0%) brightness(1);
  transform: scale(1.05);
}


/* ── Modal / popup form ──────────────────────────────────── */

.modal-overlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  width: 90%; max-width: 520px;
  padding: 2.5rem;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.modal-overlay.active .modal { transform: translateY(0); }

.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.2rem;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  transition: color 0.3s ease;
}
.modal-close:hover { color: var(--text-primary); }

.modal h2 {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 400;
  margin-bottom: 0.5rem;
}
.modal h2 em { font-style: italic; color: var(--accent-copper); }
.modal p.modal-desc {
  font-size: 0.85rem; color: var(--text-secondary);
  font-weight: 300; margin-bottom: 2rem; line-height: 1.7;
}

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block; font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 0.75rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.85rem;
  transition: border-color 0.3s ease;
  outline: none; resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-copper);
}
.form-group textarea { min-height: 100px; }

.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-submit {
  width: 100%; margin-top: 0.5rem;
}


/* ── Footer ──────────────────────────────────────────────── */

.footer { padding: 3rem 0; border-top: 1px solid var(--border-subtle); }
.footer-inner {
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 1rem;
}
.footer-copy {
  font-size: 0.72rem; color: var(--text-muted);
  font-weight: 400; letter-spacing: 0.05em;
}
.footer-legal { display: flex; gap: 2rem; }
.footer-legal a {
  font-size: 0.68rem; color: var(--text-muted); text-decoration: none;
  letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500;
  transition: color 0.3s ease;
}
.footer-legal a:hover { color: var(--accent-copper); }