/* ═══════════════════════════════════════════════════
   SITE — shared design layer for the ALP site pages
   ─────────────────────────────────────────────────
   Built on alp-tokens.css / alp-components.css. Adds:
     • reveal-on-scroll + lightbox
     • chrome refinements (active nav, text social links)
     • page hero (sub-page intro)
     • stats bar
     • machine page extras (numbered features, sidebar specs, gallery)
     • engineering / gallery / custom / about / contact sections

   Load order (after the token + component layers):
     main.css → product.css → alp-tokens.css → alp-components.css
     → nav-mobile.css → site.css → (page.css)
   ═══════════════════════════════════════════════════ */

/* ── REVEAL ON SCROLL ───────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--alp-duration-page) var(--alp-ease-out),
              transform var(--alp-duration-page) var(--alp-ease-out);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ── LIGHTBOX ───────────────────────────────────── */
.lightbox {
  position: fixed; inset: 0; z-index: 10000;
  display: none; align-items: center; justify-content: center;
  background: rgba(0,0,0,.9); padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox__img {
  max-width: min(94vw, 1200px); max-height: 82vh;
  object-fit: contain; border-radius: var(--alp-radius-s);
  border: 1px solid var(--alp-line);
}
.lightbox__close {
  position: absolute; top: 18px; inset-inline-start: 18px;
  width: 42px; height: 42px; border-radius: var(--alp-radius-s);
  border: 1px solid var(--alp-line); background: rgba(0,0,0,.6);
  color: #fff; font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.lightbox__close:hover { background: var(--alp-accent); }
.lightbox__caption {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.75); font-size: .9rem; text-align: center;
  max-width: 80vw;
}

/* ── CHROME REFINEMENTS ─────────────────────────── */
.main-nav a[aria-current="page"] { color: var(--text); }
.mobile-nav-drawer__links a[aria-current="page"] { color: var(--accent); }

/* Text social links (replaces product.css icon boxes) */
.footer-social { display: flex; gap: 12px; flex-wrap: wrap; }
.footer-social a {
  width: auto; height: auto; border: none; border-radius: 0;
  background: transparent; padding: 0;
  font-size: .84rem; color: var(--muted);
  display: inline; align-items: unset; justify-content: unset;
}
.footer-social a:hover { border-color: transparent; color: var(--accent); }

/* ── PAGE HERO (sub-pages intro) ────────────────── */
.page-hero {
  padding: 130px 0 var(--alp-space-5);
  border-bottom: 1px solid var(--alp-line);
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(211, 47, 47, 0.08) 0%, rgba(10, 10, 10, 0.98) 75%);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(135deg, rgba(211, 47, 47, 0.04) 25%, transparent 25%),
    linear-gradient(225deg, rgba(211, 47, 47, 0.04) 25%, transparent 25%),
    linear-gradient(315deg, rgba(211, 47, 47, 0.04) 25%, transparent 25%),
    linear-gradient(45deg, rgba(211, 47, 47, 0.04) 25%, transparent 25%);
  background-size: 36px 36px, 72px 72px, 72px 72px, 72px 72px, 72px 72px;
  background-position: 0 0, 36px 0, 36px 0, 0 0, 0 0;
  opacity: 0.35;
  pointer-events: none;
}
.page-hero__kicker {
  display: inline-block;
  font-family: var(--alp-font);
  font-size: var(--alp-fs-label); font-weight: var(--alp-fw-bold);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--alp-brand-red);
  padding: 4px 12px;
  background: rgba(211, 47, 47, 0.12);
  border: 1px solid rgba(211, 47, 47, 0.3);
  border-radius: 4px;
  margin-bottom: 12px;
}
.page-hero__title {
  margin: var(--alp-space-2) 0 var(--alp-space-3);
  font-family: var(--alp-font);
  font-size: clamp(1.8rem, 3.8vw, 2.7rem);
  font-weight: var(--alp-fw-black);
  line-height: 1.25; color: #fff;
}
.page-hero__desc {
  margin: 0; max-width: 68ch;
  color: var(--alp-text-secondary); font-size: var(--alp-fs-body-lg); line-height: 1.85;
}

/* ── AMBIENT TRIANGULAR PATTERNS (ALP SIGNATURE) ── */
.alp-ambient-triangles {
  position: relative;
}
.alp-ambient-triangles::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(211, 47, 47, 0.08) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  opacity: 0.4;
  pointer-events: none;
}

/* ── STATS BAR ──────────────────────────────────── */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--alp-space-3);
}
.stat-cell {
  padding: var(--alp-space-4);
  background: var(--alp-surface-1);
  border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
  text-align: right;
}
.stat-cell__value {
  font-family: var(--alp-font);
  font-size: var(--alp-fs-h2); font-weight: var(--alp-fw-black);
  color: var(--text);
}
.stat-cell__label { color: var(--muted); font-size: var(--alp-fs-caption); margin-top: 4px; }
@media (max-width: 980px) { .stats-bar { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .stats-bar { grid-template-columns: 1fr; } }

/* ── MACHINE PAGE ───────────────────────────────── */
/* Breadcrumb reuses product.css. Sidebar key specs */
.product-specs-mini {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
  margin: 0 0 var(--alp-space-4);
}
.product-specs-mini .spec-item { padding: 12px 14px; }
.product-specs-mini .spec-item strong { font-size: .92rem; }

/* Numbered engineering feature cards */
.features-grid--eng .feature-card { position: relative; padding-block-start: 22px; }
.features-grid--eng .feature-card__num {
  display: block; font-family: var(--alp-font);
  font-size: var(--alp-fs-label); font-weight: var(--alp-fw-black);
  color: var(--alp-accent); letter-spacing: .14em; margin-bottom: 8px;
}

/* Product gallery (static renders) */
.product-gallery-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--alp-space-3);
}
.product-gallery-grid a {
  display: block; overflow: hidden; position: relative;
  border-radius: var(--alp-radius-m);
  border: 1px solid var(--alp-line);
  background: var(--alp-surface-1);
}
.product-gallery-grid img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block;
  transition: transform var(--alp-duration-base) var(--alp-ease-out);
}
.product-gallery-grid a:hover img { transform: scale(1.04); }
.product-gallery-grid figcaption {
  position: absolute; inset-inline: 0; bottom: 0; padding: 18px 12px 10px;
  font-size: var(--alp-fs-caption); color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,.72), transparent);
}
@media (max-width: 980px) { .product-gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .product-gallery-grid { grid-template-columns: 1fr; } }

/* Section titles used across sub-pages */
.section-head { margin-bottom: var(--alp-space-5); }

/* ── ENGINEERING PAGE ───────────────────────────── */
.eng-hero-media {
  border-radius: var(--alp-radius-m); overflow: hidden;
  border: 1px solid var(--alp-line);
}
.eng-hero-media img { width: 100%; display: block; }

.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--alp-space-3);
  counter-reset: step;
}
.process-step {
  position: relative; padding: var(--alp-space-4) var(--alp-space-4) var(--alp-space-3);
  background: var(--alp-surface-1); border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
}
.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-block; margin-bottom: 10px;
  font-family: var(--alp-font);
  font-size: var(--alp-fs-label); font-weight: var(--alp-fw-black);
  letter-spacing: .14em; color: var(--alp-accent);
}
.process-step h3 { margin: 0 0 6px; font-size: var(--alp-fs-h3); font-weight: var(--alp-fw-bold); }
.process-step p { margin: 0; color: var(--muted); font-size: var(--alp-fs-body); line-height: 1.8; }
@media (max-width: 980px) { .process-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .process-steps { grid-template-columns: 1fr; } }

.material-tiers {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--alp-space-3);
}
@media (max-width: 980px) { .material-tiers { grid-template-columns: 1fr; } }

/* ── GALLERY PAGE ───────────────────────────────── */
.gallery-filters {
  display: flex; gap: var(--alp-space-2); flex-wrap: wrap; margin-bottom: var(--alp-space-5);
}
.gallery-filters button {
  min-height: 36px; padding: 0 var(--alp-space-3);
  border-radius: var(--alp-radius-s);
  border: 1px solid var(--alp-line); background: transparent; color: var(--muted);
  font-family: var(--alp-font); font-size: var(--alp-fs-caption);
  font-weight: var(--alp-fw-bold); cursor: pointer;
  transition: color var(--alp-duration-fast) var(--alp-ease-out),
              border-color var(--alp-duration-fast) var(--alp-ease-out);
}
.gallery-filters button:hover { color: var(--text); border-color: var(--alp-text-faint); }
.gallery-filters button.active {
  color: #fff; background: var(--alp-accent); border-color: var(--alp-accent);
}
html.light-mode .gallery-filters button.active { color: #fff; }
.gallery-masonry {
  columns: 3; column-gap: var(--alp-space-3);
}
.gallery-masonry > a {
  display: block; break-inside: avoid; margin-bottom: var(--alp-space-3);
  border-radius: var(--alp-radius-m); overflow: hidden;
  border: 1px solid var(--alp-line); background: var(--alp-surface-1);
}
.gallery-masonry img { width: 100%; display: block; object-fit: cover; }
@media (max-width: 980px) { .gallery-masonry { columns: 2; } }
@media (max-width: 640px) { .gallery-masonry { columns: 1; } }

/* ── CUSTOM PROJECTS ────────────────────────────── */
.project-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--alp-space-4);
  padding: var(--alp-space-4); align-items: center;
  background: var(--alp-surface-1); border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
}
.project-card + .project-card { margin-top: var(--alp-space-3); }
.project-card img { width: 100%; border-radius: var(--alp-radius-s); display: block; }
.project-card h3 { margin: 0 0 8px; font-size: var(--alp-fs-h3); font-weight: var(--alp-fw-bold); }
.project-card p { margin: 0 0 14px; color: var(--muted); font-size: var(--alp-fs-body); line-height: 1.8; }
@media (max-width: 980px) { .project-card { grid-template-columns: 1fr; } }

/* ── ABOUT ──────────────────────────────────────── */
.about-lead {
  font-size: var(--alp-fs-h1); line-height: 1.4; font-weight: var(--alp-fw-bold);
  color: var(--text); max-width: 32ch;
}
.about-lead mark { color: var(--alp-accent); background: transparent; }
.value-list { display: flex; flex-direction: column; gap: var(--alp-space-3); }
.value-row {
  display: grid; grid-template-columns: 120px 1fr; gap: var(--alp-space-4);
  padding: var(--alp-space-3);
  background: var(--alp-surface-1); border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
}
.value-row strong { color: var(--alp-accent); font-size: var(--alp-fs-caption); letter-spacing: .12em; }
.value-row p { margin: 0; color: var(--muted); line-height: 1.8; font-size: var(--alp-fs-body); }
@media (max-width: 640px) { .value-row { grid-template-columns: 1fr; gap: var(--alp-space-2); } }

/* ── CONTACT ────────────────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--alp-space-5);
  align-items: start;
}
.contact-form {
  display: flex; flex-direction: column; gap: var(--alp-space-3);
  background: var(--alp-surface-1); border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m); padding: var(--alp-space-4);
}
.contact-form textarea { resize: vertical; min-height: 130px; }
.contact-channels { display: flex; flex-direction: column; gap: var(--alp-space-3); }
.contact-channel {
  display: flex; flex-direction: column; gap: 4px;
  padding: var(--alp-space-3);
  background: var(--alp-surface-1); border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
}
.contact-channel span { font-size: var(--alp-fs-caption); color: var(--alp-text-muted); }
.contact-channel a, .contact-channel strong { color: var(--text); font-size: var(--alp-fs-body-lg); font-weight: var(--alp-fw-bold); }
@media (max-width: 980px) { .contact-grid { grid-template-columns: 1fr; } }

/* ── CTA BLOCK (shared) ─────────────────────────── */
.site-cta {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--alp-space-4); flex-wrap: wrap; text-align: right;
  padding: var(--alp-space-5);
  background: var(--alp-surface-1);
  border: 1px solid var(--alp-line);
  border-radius: var(--alp-radius-m);
}
.site-cta h2 { margin: 0 0 6px; font-size: var(--alp-fs-h2); font-weight: var(--alp-fw-black); }
.site-cta p { margin: 0; color: var(--muted); line-height: 1.8; }
.site-cta__actions { display: flex; gap: var(--alp-space-3); flex-wrap: wrap; }
@media (max-width: 640px) {
  .site-cta__actions { flex-direction: column; align-items: stretch; }
  .site-cta__actions .alp-btn { width: 100%; }
}

/* ═══════════════════════════════════════════════════
   PHASE 2 — ENGINEERING & CUSTOMIZER COMPONENT STYLES
   ═══════════════════════════════════════════════════ */

/* ── ENGINEERING PLANES GRID ────────────────────── */
.engineering-planes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 36px;
}
.eng-card {
  position: relative;
  padding: 32px;
  background: rgba(18, 18, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.eng-card:hover {
  transform: translateY(-4px);
  border-color: rgba(211, 47, 47, 0.4);
}
.eng-card__badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(211, 47, 47, 0.15);
  border: 1px solid var(--alp-brand-red);
  color: var(--alp-brand-red);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 16px;
}
.eng-card h3 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  color: #fff;
  font-weight: 700;
}
.eng-card p {
  margin: 0 0 20px;
  color: var(--alp-text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}
.eng-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 16px;
}
.eng-card__list li {
  font-size: 0.86rem;
  color: var(--alp-text-secondary);
  display: flex;
  justify-content: space-between;
}
.eng-card__list li strong {
  color: #fff;
}
@media (max-width: 860px) {
  .engineering-planes-grid { grid-template-columns: 1fr; }
}

/* ── FEM & STRUCTURAL LAYOUT ────────────────────── */
.fem-layout-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  margin-top: 36px;
}
.fem-info-block h3 {
  margin: 0 0 14px;
  font-size: 1.4rem;
  color: #fff;
  font-weight: 800;
}
.fem-info-block p {
  color: var(--alp-text-secondary);
  line-height: 1.85;
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.fem-spec-table {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.fem-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  font-size: 0.9rem;
}
.fem-spec-row span { color: var(--alp-text-secondary); }
.fem-spec-row strong { color: #fff; font-weight: 700; }
/* ── VISUAL MEDIA CARDS & DIAGRAMS ──────────────── */
.biomech-master-visual {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0d0d0d;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  margin-bottom: 36px;
}
.biomech-master-visual img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}
.biomech-master-visual:hover img {
  transform: scale(1.015);
}
.biomech-visual-overlay {
  position: absolute;
  bottom: 0;
  inset-inline: 0;
  padding: 18px 24px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.biomech-visual-overlay span {
  font-size: 0.9rem;
  color: #fff;
  font-weight: 600;
}
.fem-diagram-img-wrap {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(0, 229, 255, 0.2);
  margin-bottom: 16px;
}
.fem-diagram-img-wrap img {
  width: 100%;
  display: block;
}
.custom-visual-banner {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}
/* ── AUGMENTED REALITY (AR) COMPONENTS & MODAL ──── */
.btn-ar-hero {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.4);
  color: #00e5ff;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 18px rgba(0, 229, 255, 0.15);
}
.btn-ar-hero:hover {
  background: rgba(0, 229, 255, 0.18);
  border-color: #00e5ff;
  box-shadow: 0 6px 28px rgba(0, 229, 255, 0.35);
  transform: translateY(-2px);
}
.btn-ar-studio {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(211, 47, 47, 0.2) 0%, rgba(0, 229, 255, 0.15) 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 14px;
}
.btn-ar-studio:hover {
  border-color: #00e5ff;
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.25);
  transform: translateY(-2px);
}

/* AR Modal Backdrop & Card */
.alp-ar-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100000;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.alp-ar-modal-backdrop.active {
  display: flex;
}
.alp-ar-modal-card {
  position: relative;
  width: min(480px, 94vw);
  background: #141414;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.9);
}
.alp-ar-modal-close {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.alp-ar-modal-close:hover {
  background: var(--alp-brand-red);
}
.alp-ar-modal-header h3 {
  margin: 8px 0 10px;
  font-size: 1.35rem;
  color: #fff;
}
.alp-ar-modal-header p {
  color: var(--alp-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 20px;
}
.alp-ar-qr-frame {
  display: inline-flex;
  padding: 14px;
  background: #1a1a1a;
  border: 2px solid rgba(0, 229, 255, 0.3);
  border-radius: 12px;
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.15);
  margin-bottom: 18px;
}
.alp-ar-qr-frame img {
  display: block;
  border-radius: 6px;
}
.alp-ar-badge-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  color: #00e5ff;
  text-align: right;
  padding-right: 12px;
}
.alp-ar-mobile-wrap {
  width: 100vw;
  height: 100vh;
  position: relative;
}


@media (max-width: 860px) {
  .fem-layout-grid { grid-template-columns: 1fr; }
}

/* ── MECHANISMS TRI-GRID ────────────────────────── */
.mechanisms-tri-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}
.mech-card {
  padding: 28px;
  background: rgba(18, 18, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}
.mech-icon-circle {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: rgba(211, 47, 47, 0.12);
  border: 1px solid rgba(211, 47, 47, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--alp-brand-red);
  margin-bottom: 20px;
}
.mech-card h4 {
  margin: 0 0 12px;
  font-size: 1.15rem;
  color: #fff;
}
.mech-card p {
  margin: 0;
  color: var(--alp-text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}
@media (max-width: 860px) {
  .mechanisms-tri-grid { grid-template-columns: 1fr; }
}

/* ── QA BANNER CARD ─────────────────────────────── */
.qa-banner-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  padding: 40px;
  background: linear-gradient(135deg, rgba(25, 25, 25, 0.9) 0%, rgba(12, 12, 12, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
}
.qa-content h2 {
  margin: 8px 0 14px;
  font-size: 1.6rem;
  color: #fff;
}
.qa-content p {
  color: var(--alp-text-secondary);
  line-height: 1.85;
  margin-bottom: 24px;
  font-size: 0.94rem;
}
.qa-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.qa-pill {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  font-size: 0.84rem;
  color: #fff;
}
.qa-action {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
@media (max-width: 860px) {
  .qa-banner-card { grid-template-columns: 1fr; padding: 24px; }
}

/* ── CUSTOMIZER WIZARD LAYOUT ───────────────────── */
.customizer-grid-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: start;
  margin-top: 36px;
}
.customizer-steps-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.wizard-card {
  padding: 24px;
  background: rgba(18, 18, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}
.wizard-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.wizard-step-badge {
  padding: 3px 10px;
  background: var(--alp-brand-red);
  color: #fff;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 700;
}
.wizard-card__header h3 {
  margin: 0;
  font-size: 1.1rem;
  color: #fff;
}
.wizard-options-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.opt-btn {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--alp-text-secondary);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
}
.opt-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.opt-btn.active {
  background: rgba(211, 47, 47, 0.15);
  border-color: var(--alp-brand-red);
  color: #fff;
  font-weight: 700;
}
.color-select-group label {
  display: block;
  font-size: 0.88rem;
  color: var(--alp-text-secondary);
  margin-bottom: 10px;
}
.color-options-row {
  display: flex;
  gap: 12px;
  align-items: center;
}
.color-chip {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}
.color-chip:hover {
  transform: scale(1.1);
}
.color-chip.active {
  transform: scale(1.15);
  border-color: var(--alp-brand-red) !important;
  box-shadow: 0 0 10px rgba(211, 47, 47, 0.5);
}
.selected-color-label {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--alp-brand-red);
  font-weight: 600;
}
.custom-branding-checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.custom-checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #fff;
  cursor: pointer;
}
.custom-checkbox-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--alp-brand-red);
  cursor: pointer;
}
.alp-input-text {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #fff;
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
}
.alp-input-text:focus {
  border-color: var(--alp-brand-red);
}
.footprint-calc-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: rgba(211, 47, 47, 0.08);
  border: 1px solid rgba(211, 47, 47, 0.25);
  border-radius: 8px;
  font-size: 0.92rem;
}

/* ── STICKY SUMMARY CARD ────────────────────────── */
.sticky-summary-card {
  position: sticky;
  top: 90px;
  padding: 28px;
  background: rgba(18, 18, 18, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}
.sticky-summary-card h3 {
  margin: 0 0 18px;
  font-size: 1.25rem;
  color: #fff;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.summary-specs-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sum-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}
.sum-row span { color: var(--alp-text-secondary); }
.sum-row strong { color: #fff; text-align: left; }

/* ── PROCESS STEPS ──────────────────────────────── */
.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px;
}
.proc-step-card {
  padding: 28px 20px;
  background: rgba(18, 18, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}
.proc-step-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--alp-brand-red);
  margin-bottom: 12px;
}
.proc-step-card h4 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: #fff;
}
.proc-step-card p {
  margin: 0;
  color: var(--alp-text-secondary);
  font-size: 0.86rem;
  line-height: 1.75;
}
@media (max-width: 980px) {
  .process-steps-grid { grid-template-columns: repeat(2, 1fr); }
  .customizer-grid-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .process-steps-grid { grid-template-columns: 1fr; }
  .wizard-options-row { grid-template-columns: 1fr; }
}