/* ============================================
   HIZIR LLC — Official Website Styles
   Brand Color: #0C7D91 (Teal)
   ============================================ */

:root {
  --brand:        #0C7D91;
  --brand-dark:   #0A6879;
  --brand-light:  #15A8C0;
  --brand-04:     rgba(12, 125, 145, 0.04);
  --brand-10:     rgba(12, 125, 145, 0.1);
  --brand-20:     rgba(12, 125, 145, 0.2);

  --dark:            #0B1120;
  --dark-2:          #111C2E;
  --dark-3:          #1A2640;
  --dark-4:          #243050;
  --dark-highlights: #071C28; /* teal-tinted deep shade for highlights section */
  --dark-grad-a:     #0D1929; /* product-card thumb — paired with --dark-4 */
  --dark-grad-b:     #0B2A3A; /* highlights-bg gradient stop 2 */
  --dark-grad-c:     #061E30; /* highlights-bg gradient stop 3 */
  --dark-grad-d:     #0D2540; /* highlights-bg gradient stop 4 */

  --light:   #FFFFFF;
  --light-2: #F7FAFC;
  --light-3: #EDF2F7;
  --light-4: #E2E8F0;

  --text-primary:   #1A202C;
  --text-secondary: #4A5568;
  --text-muted:     #A0AEC0;
  --text-on-dark:   #F7FAFC;
  --text-on-dark-2: rgba(247, 250, 252, 0.65);

  --border:      #E2E8F0;
  --border-dark: rgba(255, 255, 255, 0.09);

  --nav-height: 72px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
  --shadow-xl: 0 32px 80px rgba(0,0,0,0.18);

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 0.15s;
  --t:      0.22s;
  --t-med:  0.3s;
  --t-slow: 0.4s;
  --t-hero: 0.9s;

  /* brand-light alpha variants (for glows / scan effects) */
  --brand-light-10: rgba(21, 168, 192, 0.10);
  --brand-light-20: rgba(21, 168, 192, 0.20);
  --brand-light-35: rgba(21, 168, 192, 0.35);
  --brand-light-55: rgba(21, 168, 192, 0.55);
  --brand-light-95: rgba(21, 168, 192, 0.95);

  /* status colors (console log / print-failure states) */
  --status-ok:   #4ADE80;
  --status-warn: #FBBF24;
  --status-err:  #F87171;

  /* precious metal accent (Pt/Ag labels, premium material callouts) */
  --precious-metal:    #C8A020;
  --precious-metal-35: rgba(200, 160, 32, 0.35);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem,    5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem,  3vw, 2.5rem); }
h3 { font-size: clamp(1.125rem,2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p  { line-height: 1.75; }

/* ============================================
   NAVIGATION
   ============================================ */
/* ── Nav entrance animation ── */
@keyframes navSlideIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Nav: centered transparent wrapper ── */
.nav {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  height: 58px;
  background: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  z-index: 1000;
  animation: navSlideIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
}

/* ── Shared dark pill style (logo + menu only) ── */
.nav-logo,
.nav-menu {
  height: 48px;
  background: rgba(11, 17, 32, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  transition: background var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.nav.scrolled .nav-logo,
.nav.scrolled .nav-menu {
  background: rgba(11, 17, 32, 0.92);
  border-color: rgba(255,255,255,0.07);
  box-shadow: 0 2px 16px rgba(0,0,0,0.22);
}

/* ── Logo pill ── */
.nav-logo {
  flex-shrink: 0;
  padding: 0 22px;
  gap: 10px;
}
.nav-logo img { height: 34px; width: auto; }
.nav-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--light);
  display: none;
}

/* ── Menu pill (middle) ── */
.nav-menu {
  padding: 0 10px;
  gap: 2px;
}
.nav-item { position: relative; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 18px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.82);
  transition: color var(--t) var(--ease), background var(--t) var(--ease), box-shadow var(--t) var(--ease);
  white-space: nowrap;
}
.nav-link:hover,
.nav-item:hover > .nav-link {
  color: var(--light);
  background: rgba(255, 255, 255, 0.11);
}
.nav-link.active {
  color: var(--brand-light);
  background: rgba(255,255,255,0.09);
}

.nav-chevron {
  transition: transform var(--t) var(--ease);
  opacity: 0.6;
  flex-shrink: 0;
}
.nav-item:hover > .nav-link .nav-chevron { transform: rotate(180deg); opacity: 0.8; }

/* ── Dropdown ── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 230px;
  background: var(--dark-2);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: 6px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t);
  z-index: 200;
}
.nav-item:hover > .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }

.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-on-dark-2);
  transition: color var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
}
.nav-dropdown a:hover {
  color: var(--text-on-dark);
  background: rgba(255,255,255,0.07);
  transform: translateX(4px);
}
.nav-dropdown a::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
  opacity: 0.6;
}

/* ── Contact pill (own styles, no glass/blur) ── */
.nav-actions {
  height: 48px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding: 0 6px;
  margin-left: 0;
  gap: 0;
  border-radius: 100px;
  background: var(--brand);
  border: 1px solid var(--brand);
  box-shadow: 0 2px 16px rgba(12,125,145,0.38);
  transition: background var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.nav-actions:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  box-shadow: 0 4px 22px rgba(12,125,145,0.55);
}
.nav-actions .btn {
  background: transparent;
  border-color: transparent;
  color: var(--light);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 100px;
  box-shadow: none;
}
.nav-actions .btn:hover {
  background: rgba(0, 0, 0, 0.20);
  border-color: transparent;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.32);
  transform: translateY(1px);
}
.nav-actions .btn:active {
  background: rgba(0, 0, 0, 0.32);
  border-color: transparent;
  box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.45);
  transform: translateY(2px) scale(0.98);
}

/* Divider between the two CTAs inside the nav pill */
.nav-actions-divider {
  width: 1px;
  height: 22px;
  background: rgba(255, 255, 255, 0.32);
  flex-shrink: 0;
  align-self: center;
  pointer-events: none;
  transition: background var(--t) var(--ease);
}
.nav-actions:hover .nav-actions-divider {
  background: rgba(255, 255, 255, 0.45);
}

/* ── Mobile-only nav list items — hidden on desktop ── */
.nav-cta-item { display: none; }

/* ── Hamburger ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 8px;
  margin-left: auto;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-on-dark);
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease), color var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
  cursor: pointer;
  white-space: nowrap;
  border: 1.5px solid transparent;
  line-height: 1;
}
.btn-primary {
  background: var(--brand);
  color: var(--light);
  border-color: var(--brand);
}
.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(12,125,145,0.38);
}
.btn-outline {
  background: transparent;
  color: var(--text-on-dark);
  border-color: rgba(255,255,255,0.28);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-brand {
  background: transparent;
  color: var(--brand);
  border-color: var(--brand);
}
.btn-outline-brand:hover { background: var(--brand); color: var(--light); }
.btn-lg  { padding: 15px 36px; font-size: 1rem; border-radius: var(--radius); }
.btn-sm  { padding: 8px 18px; font-size: 0.8125rem; }

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.section     { padding: 96px 28px; }
.section-sm  { padding: 64px 28px; }
.section-gray { background: var(--light-2); }

.container {
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
}

.section-header { margin-bottom: 56px; }
.section-header.center { text-align: center; max-width: 640px; margin-left: auto; margin-right: auto; }

.section-label {
  display: inline-block;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 12px;
}
.section-label.light { color: var(--brand-light); }
.section-title { color: var(--text-primary); margin-bottom: 16px; }
.section-title.light { color: var(--text-on-dark); }
.section-desc  { color: var(--text-secondary); font-size: 1.0625rem; line-height: 1.75; max-width: 560px; }
.section-desc.light  { color: var(--text-on-dark-2); }
.section-desc.center { max-width: 560px; margin: 0 auto; }

/* ============================================
   HERO — HOME
   ============================================ */
.hero {
  min-height: 100vh;
  background: var(--dark); /* fallback — carousel provides the gradient */
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

/* ── Hero Carousel ── */
.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
  -webkit-user-select: none;
  user-select: none;
  cursor: grab;
  transition: transform var(--t) var(--ease);
}
.hero-carousel.is-dragging {
  cursor: grabbing;
  transition: none;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--t-hero) var(--ease);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  will-change: opacity;
  -webkit-user-select: none;
  user-select: none;
  draggable: false;
}
.hero-slide.active { opacity: 1; }
.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
    rgba(11,17,32,0.97) 0%,
    rgba(11,17,32,0.82) 38%,
    rgba(11,17,32,0.42) 65%,
    rgba(11,17,32,0.12) 100%);
}
.slide-visual {
  position: relative;
  z-index: 1;
  color: rgba(12,125,145,0.9);
  margin-right: 6%;
  pointer-events: none;
  opacity: 0.22;
}
/* When using real photos instead of SVG placeholders */
.slide-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Carousel arrows — hidden */
.carousel-prev,
.carousel-next { display: none; }

/* Carousel dots */
.carousel-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  gap: 10px;
  align-items: center;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  padding: 0;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}
.carousel-dot.active {
  background: var(--brand-light);
  transform: scale(1.5);
}
.carousel-dot:hover:not(.active) { background: rgba(255,255,255,0.55); }

/* ── Social Float ── */
.social-float {
  position: fixed;
  bottom: 92px;
  right: 28px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.social-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--brand);
  color: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(12,125,145,0.38);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.social-btn:hover {
  background: var(--brand-light);
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 8px 24px rgba(12,125,145,0.55);
}
.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 700px 500px at 75% 40%, rgba(12,125,145,0.13) 0%, transparent 65%),
    radial-gradient(ellipse 400px 300px at 15% 75%, rgba(12,125,145,0.07) 0%, transparent 55%);
  pointer-events: none;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(12,125,145,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12,125,145,0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1320px;
  margin: 0 auto;
  padding: 80px 28px 100px;
  width: 100%;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(12,125,145,0.14);
  border: 1px solid rgba(12,125,145,0.32);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-light);
  margin-bottom: 28px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-light);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  color: var(--text-on-dark);
  max-width: 740px;
  margin-bottom: 24px;
}
.hero-title em { font-style: normal; color: var(--brand-light); }
.hero-subtitle {
  color: var(--text-on-dark-2);
  font-size: 1.125rem;
  max-width: 540px;
  margin-bottom: 44px;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 72px; }
.hero-stats {
  display: flex;
  gap: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border-dark);
  flex-wrap: wrap;
}
.stat-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-on-dark);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-num span { color: var(--brand-light); }
.stat-label {
  font-size: 0.8125rem;
  color: var(--text-on-dark-2);
  margin-top: 5px;
}

/* Page Hero (inner pages) */
.page-hero {
  background: linear-gradient(140deg, var(--dark) 0%, var(--dark-3) 100%);
  padding: calc(var(--nav-height) + 64px) 28px 72px;
  min-height: 320px;
  position: relative;
  overflow: hidden;
}
.page-hero-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 500px 300px at 80% 55%, rgba(12,125,145,0.13) 0%, transparent 60%);
  pointer-events: none;
}
.page-hero-inner { position: relative; z-index: 2; max-width: 1320px; margin: 0 auto; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-on-dark-2);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--brand-light); transition: opacity var(--t); }
.breadcrumb a:hover { opacity: 0.8; }
.breadcrumb-sep { opacity: 0.35; font-size: 0.7rem; }
.page-hero h1 { color: var(--text-on-dark); max-width: 640px; margin-bottom: 14px; }
.page-hero p  { color: var(--text-on-dark-2); font-size: 1.125rem; max-width: 520px; }

/* ============================================
   CARDS
   ============================================ */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }

.card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(12,125,145,0.4);
}
.card-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--ease); }
.card:hover .card-thumb img { transform: scale(1.04); }

.thumb-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark-4) 100%);
  color: var(--brand-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

.card-body { padding: 24px; }
.card-tag {
  display: inline-block;
  padding: 3px 11px;
  background: var(--brand-10);
  color: var(--brand);
  border-radius: 100px;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.card-tag.light { background: rgba(12,125,145,0.2); color: var(--brand-light); }
.card-title { font-size: 1.0625rem; font-weight: 700; margin-bottom: 8px; }
.card-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--brand);
}
.card-arrow svg { transition: transform var(--t) var(--ease); }
.card-arrow:hover svg { transform: translateX(4px); }

/* Product Card (larger, featured) */
.product-card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 32px 80px rgba(0,0,0,0.1);
  border-color: var(--brand);
}
.product-card-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--dark-grad-a), var(--dark-4));
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.product-card-badge {
  position: absolute; top: 16px; left: 16px;
  padding: 4px 13px;
  background: var(--brand); color: var(--light);
  border-radius: 100px;
  font-size: 0.73rem; font-weight: 700;
  letter-spacing: 0.06em;
}
.product-card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.product-card-cat {
  font-size: 0.73rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--brand); margin-bottom: 8px;
}
.product-card-title { font-size: 1.25rem; font-weight: 800; margin-bottom: 10px; }
.product-card-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: 22px; }
.product-card-footer {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex; align-items: center; justify-content: space-between;
}

/* ============================================
   HIGHLIGHTS
   ============================================ */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 0;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.highlight-cell {
  background: var(--light);
  padding: 40px 32px;
  transition: background var(--t) var(--ease);
}
.section-gray .highlight-cell { background: var(--light-2); }
.highlight-cell:hover { background: rgba(12,125,145,0.05); }
.highlight-icon {
  width: 52px; height: 52px;
  background: var(--brand-10);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
  margin-bottom: 20px;
}
.highlight-title { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.highlight-desc  { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; }

/* ── Highlights section with background image ── */
.highlights-section {
  position: relative;
  overflow: hidden;
  background: var(--dark-highlights) !important; /* fallback */
}
/* Blurred background image layer
   To use a real photo: set background-image on .highlights-bg in a <style> tag
   e.g. .highlights-bg { background-image: url(assets/highlights-bg.jpg); } */
.highlights-bg {
  position: absolute;
  inset: -40px;           /* overscan so blur edges don't show */
  background:
    linear-gradient(135deg, var(--dark-highlights) 0%, var(--dark-grad-b) 35%, var(--dark-grad-c) 65%, var(--dark-grad-d) 100%);
  background-size: cover;
  background-position: center;
  filter: blur(18px);
  transform: scale(1.06); /* compensate blur-edge bleed */
}
/* Dark overlay — keeps text legible */
.highlights-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 16, 28, 0.70);
}
/* All content inside sits above the bg */
.highlights-section > .container { position: relative; z-index: 1; }

/* Restyle cells for dark background */
.highlights-section .highlights-grid {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.10);
}
.highlights-section .highlight-cell {
  background: transparent;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.highlights-section .highlight-cell:last-child { border-right: none; }
.highlights-section .highlight-cell:hover {
  background: rgba(12,125,145,0.12);
}
.highlights-section .highlight-icon {
  background: rgba(12,125,145,0.18);
  color: var(--brand-light);
}
.highlights-section .highlight-title { color: var(--text-on-dark); }
.highlights-section .highlight-desc  { color: var(--text-on-dark-2); }
.highlights-section .section-label   { color: var(--brand-light); }
.highlights-section .section-title   { color: var(--text-on-dark); }

/* ============================================
   NEWS CARDS
   ============================================ */
.news-card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease), opacity var(--t-fast) var(--ease);
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(12,125,145,0.35); }
.news-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--dark-3), var(--dark-4));
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--ease); }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 12px; }
.news-cat  { color: var(--brand); font-weight: 700; }
.news-title { font-size: 1rem; font-weight: 700; line-height: 1.45; margin-bottom: 10px; flex: 1; }
.news-excerpt { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.news-link {
  font-size: 0.8125rem; font-weight: 700;
  color: var(--brand);
  display: inline-flex; align-items: center; gap: 5px;
}
.news-link svg { transition: transform var(--t) var(--ease); }
.news-link:hover svg { transform: translateX(4px); }

/* ============================================
   CTA BANNER
   ============================================ */
/* ── News ticker ── */
.news-ticker-band {
  background: var(--dark-3);
  border-bottom: 1px solid var(--border);
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  z-index: 1;
}
.news-ticker-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand);
  color: var(--light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 10px 18px;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 2;
}
.news-ticker-track {
  display: inline-flex;
  align-items: center;
  animation: ticker-scroll 28s linear infinite;
  padding-left: 140px;
}
.news-ticker-track:hover { animation-play-state: paused; }
.news-ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 36px 10px 0;
  font-size: 0.82rem;
  color: var(--light);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}
.news-ticker-item:hover { color: var(--brand-light); }
.news-ticker-dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.cta-band {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 100%);
  border-radius: var(--radius-xl);
  padding: 64px 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute; right: -80px; top: -80px;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(12,125,145,0.18) 0%, transparent 65%);
  pointer-events: none;
}
.cta-band h2  { color: var(--text-on-dark); margin-bottom: 10px; }
.cta-band p   { color: var(--text-on-dark-2); font-size: 1.0625rem; }
.cta-actions  { display: flex; gap: 14px; flex-shrink: 0; }

/* ── Soft variant (Free Trial — light inviting card) ── */
.cta-band.cta-band--soft {
  background: var(--light);
  border: 1px solid var(--brand-20);
  box-shadow: 0 4px 24px color-mix(in srgb, var(--brand) 8%, transparent);
}
.cta-band.cta-band--soft::before {
  background: radial-gradient(circle, var(--brand-10) 0%, transparent 65%);
}
.cta-band.cta-band--soft h2 { color: var(--text-primary); }
.cta-band.cta-band--soft p  { color: var(--text-secondary); }
.cta-band.cta-band--soft .btn-outline {
  color: var(--brand-dark);
  border-color: var(--brand-20);
  background: transparent;
}
.cta-band.cta-band--soft .btn-outline:hover {
  background: var(--brand);
  color: var(--light);
  border-color: var(--brand);
}

/* ── Brand variant (Consult — full-weight brand gradient banner) ── */
.cta-band.cta-band--brand {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 100%);
}
.cta-band.cta-band--brand::before {
  background: radial-gradient(circle, rgba(255,255,255,0.14) 0%, transparent 65%);
}
.cta-band.cta-band--brand .btn-outline {
  border-color: rgba(255,255,255,0.7);
  color: var(--light);
}
.cta-band.cta-band--brand .btn-outline:hover {
  background: var(--light);
  color: var(--brand-dark);
  border-color: var(--light);
}
.cta-band.cta-band--brand .btn-primary {
  background: var(--light);
  color: var(--brand-dark);
}
.cta-band.cta-band--brand .btn-primary:hover {
  background: var(--light-3);
  color: var(--brand-dark);
}

/* ── Pill trio (micro-reassurance chips) ── */
.cta-pills {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.cta-pills span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 100px;
  color: var(--light);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.cta-pills span::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--light);
  opacity: 0.85;
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail-wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 80px 28px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: start;
}
.product-img-box {
  position: sticky; top: calc(var(--nav-height) + 24px);
  aspect-ratio: 4/3;
  background: var(--light);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  border: 1px solid var(--border);
}
.product-img-box img { width: 100%; height: 100%; object-fit: contain; padding: 24px; }

.product-info-cat {
  font-size: 0.73rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--brand); margin-bottom: 8px;
}
.product-info h1 { margin-bottom: 6px; }
.product-info-sub { font-size: 1.125rem; color: var(--text-secondary); margin-bottom: 28px; line-height: 1.6; }

.feature-list { margin-bottom: 32px; }
.feature-list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.feature-list li:first-child { border-top: 1px solid var(--border); }
.feat-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
  margin-top: 7px;
}

.spec-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; border-radius: var(--radius); overflow: hidden; }
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 13px 16px; }
.spec-table td:first-child {
  font-weight: 600; background: var(--light-2);
  width: 42%; color: var(--text-primary);
}
.spec-table td:last-child { color: var(--text-secondary); }

.product-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

/* ============================================
   ZIRCONIA TIERS
   ============================================ */
.tier-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.tier-card {
  padding: 28px 22px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--light);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), transform var(--t) var(--ease);
}
.tier-card:hover { border-color: var(--brand); box-shadow: 0 0 0 4px var(--brand-10); transform: translateY(-2px); }
.tier-card.featured { border-color: var(--brand); background: linear-gradient(135deg, rgba(12,125,145,0.03), rgba(12,125,145,0.07)); }
.tier-badge {
  display: inline-block; padding: 3px 10px;
  border-radius: 100px; font-size: 0.73rem; font-weight: 700;
  margin-bottom: 18px;
  background: var(--brand-10); color: var(--brand);
}
.tier-badge.featured { background: var(--brand); color: var(--light); }
.tier-mpa { font-size: 2rem; font-weight: 800; color: var(--text-primary); line-height: 1; margin-bottom: 2px; }
.tier-unit { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 14px; }
.tier-trans { font-size: 0.875rem; color: var(--brand); font-weight: 600; margin-bottom: 10px; }
.tier-name { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.tier-desc { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.65; }

/* ============================================
   PROCESS STEPS
   ============================================ */
.process-steps { display: flex; align-items: flex-start; gap: 0; position: relative; }
.process-steps::before {
  content: '';
  position: absolute;
  top: 28px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-10), var(--brand-20), var(--brand-10));
  z-index: 0;
}
.step {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; text-align: center;
  padding: 0 20px;
  position: relative; z-index: 1;
}
.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--brand);
  color: var(--light);
  font-size: 1.25rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  border: 4px solid var(--light);
  box-shadow: 0 0 0 2px var(--brand);
}
.section-gray .step-num { border-color: var(--light-2); }
.step-title { font-size: 0.9375rem; font-weight: 700; margin-bottom: 8px; }
.step-desc  { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.65; }

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-img-block {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--dark-2), var(--dark-4));
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-dark);
}
.value-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; margin-top: 32px; }
.value-item {
  padding: 20px;
  background: var(--light-2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.value-item h4 { color: var(--brand); margin-bottom: 6px; font-size: 0.9375rem; }
.value-item p  { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.65; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark);
  padding: 72px 28px 0;
}
.footer-grid {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--border-dark);
}
.footer-logo { margin-bottom: 20px; }
.footer-logo img { height: 30px; }
.footer-logo .logo-text {
  font-size: 1.375rem; font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--brand-light);
  display: none;
}
.footer-about {
  font-size: 0.875rem;
  color: var(--text-on-dark-2);
  line-height: 1.75;
  max-width: 270px;
  margin-bottom: 24px;
}
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.8375rem; color: var(--text-on-dark-2);
}
.footer-contact-row a { color: var(--text-on-dark-2); transition: color var(--t); }
.footer-contact-row a:hover { color: var(--brand-light); }
.footer-contact-icon { color: var(--brand); flex-shrink: 0; }

.footer-col-title {
  font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-on-dark);
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.875rem; color: var(--text-on-dark-2); transition: color var(--t); }
.footer-links a:hover { color: var(--brand-light); }

.footer-bottom {
  max-width: 1320px;
  margin: 0 auto;
  padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-on-dark-2);
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: var(--text-on-dark-2); transition: color var(--t); }
.footer-bottom-links a:hover { color: var(--brand-light); }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.aos {
  opacity: 0;
  transform: translateY(48px);
  transition:
    opacity  0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}
.aos.visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}
/* staggered left-to-right wave */
.aos-delay-1 { transition-delay: 0.10s; }
.aos-delay-2 { transition-delay: 0.20s; }
.aos-delay-3 { transition-delay: 0.30s; }
.aos-delay-4 { transition-delay: 0.40s; }

/* ============================================
   TASK 3 — ENHANCED SCROLL ANIMATIONS
   ============================================ */

/* Section-header stagger: label / title / desc slide up individually */
@media (prefers-reduced-motion: no-preference) {
  .section-header .section-label,
  .section-header .section-title,
  .section-header .section-desc {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  }
  .section-header.sh-in-view .section-label {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0ms;
  }
  .section-header.sh-in-view .section-title {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 100ms;
  }
  .section-header.sh-in-view .section-desc {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 200ms;
  }

  /* Card stagger — initial hidden state */
  .card-anim {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  }
  .card-anim.in-view {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   TASK 1 — FLOATING CTA BUTTON
   ============================================ */
.float-cta-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1100;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 22px;
  background: var(--brand);
  color: var(--light);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 4px 18px rgba(12,125,145,0.38);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), background var(--t) var(--ease);
  white-space: nowrap;
  cursor: pointer;
  border: none;
}
.float-cta-btn:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(12,125,145,0.48);
}
@media (max-width: 480px) {
  .float-cta-btn {
    padding: 11px 16px;
    font-size: 0.82rem;
    right: 14px;
    bottom: 14px;
  }
}

/* Modal overlay */
.sample-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(11,17,32,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t) var(--ease);
}
.sample-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.sample-modal {
  background: var(--light);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px 32px 28px;
  position: relative;
  box-shadow: var(--shadow-xl);
  transform: translateY(16px);
  transition: transform var(--t) var(--ease);
}
.sample-modal-overlay.open .sample-modal {
  transform: translateY(0);
}
.sample-modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-secondary);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  background: none;
  border: none;
}
.sample-modal-close:hover { background: var(--light-3); color: var(--text-primary); }
.sample-modal h2 { font-size: 1.35rem; margin-bottom: 6px; color: var(--text-primary); }
.sample-modal .modal-sub { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 24px; }
.sample-form .form-group { margin-bottom: 16px; }
.sample-form label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 5px; letter-spacing: 0.03em; }
.sample-form input,
.sample-form textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--light);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
  outline: none;
}
.sample-form input:focus,
.sample-form textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-10);
}
.sample-form textarea { resize: vertical; min-height: 72px; }
.sample-form .check-group { display: flex; flex-wrap: wrap; gap: 8px 12px; }
.sample-form .check-item { display: flex; align-items: center; gap: 6px; font-size: 0.875rem; color: var(--text-primary); cursor: pointer; }
.sample-form .check-item input[type="checkbox"] { accent-color: var(--brand); width: 15px; height: 15px; cursor: pointer; }
.sample-form .form-submit {
  margin-top: 20px;
  width: 100%;
  padding: 13px;
  background: var(--brand);
  color: var(--light);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}
.sample-form .form-submit:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}

/* ── Liquid flow band (shared across Solutions + Who We Are) ── */
.flow-band {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.flow-band::before,
.flow-band::after {
  content: '';
  position: absolute;
  inset: -5%;
  z-index: -1;
  pointer-events: none;
  will-change: transform;
  filter: drop-shadow(0 1px 1.5px color-mix(in srgb, var(--brand) 5%, transparent));
}
.flow-band::before {
  background-image: repeating-radial-gradient(
    circle at 22% 30%,
    transparent 0, transparent 44px,
    color-mix(in srgb, var(--brand) 5%, transparent) 44px,
    color-mix(in srgb, var(--brand) 5%, transparent) 46px,
    transparent 46px, transparent 88px
  );
  animation: contour-a 16s ease-in-out infinite alternate;
  transform-origin: 22% 30%;
}
.flow-band::after {
  background-image: repeating-radial-gradient(
    circle at 78% 72%,
    transparent 0, transparent 56px,
    color-mix(in srgb, var(--brand-light) 4.5%, transparent) 56px,
    color-mix(in srgb, var(--brand-light) 4.5%, transparent) 58px,
    transparent 58px, transparent 112px
  );
  animation: contour-b 22s ease-in-out infinite alternate;
  transform-origin: 78% 72%;
}
@keyframes contour-a {
  0%   { transform: scale(1)    translate3d(0, 0, 0); }
  100% { transform: scale(1.12) translate3d(1.5%, -1%, 0); }
}
@keyframes contour-b {
  0%   { transform: scale(1.08) translate3d(0, 0, 0); }
  100% { transform: scale(0.96) translate3d(-1%, 1.5%, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .flow-band::before,
  .flow-band::after { animation: none; }
}

/* ============================================
   RESPONSIVE

   ============================================ */
@media (max-width: 1100px) {
  .articles-featured { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2,1fr); }
  .highlights-grid  { grid-template-columns: repeat(2,1fr); }
  .tier-grid         { grid-template-columns: repeat(2,1fr); }
  .footer-grid       { grid-template-columns: 1fr 1fr; }
  .product-detail-wrap { grid-template-columns: 1fr; gap: 40px; }
  .product-img-box   { position: static; }
  .about-split       { grid-template-columns: 1fr; gap: 48px; }
  .cta-band          { flex-direction: column; text-align: center; padding: 48px 36px; }
  .cta-actions       { justify-content: center; }
  .process-steps     { flex-wrap: wrap; gap: 32px; }
  .process-steps::before { display: none; }
}
@media (max-width: 768px) {
  /* ── Nav: sticky full-width bar with accordion menu ── */
  .nav {
    position: sticky;
    top: 0;
    left: 0; right: 0;
    transform: none;
    animation: none;
    width: 100%; max-width: 100%;
    height: auto;
    min-height: var(--nav-height);
    background: rgba(11,17,32,0.97);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    border-radius: 0;
    box-shadow: none;
    z-index: 1000;
  }
  .nav-inner {
    padding: 0 20px;
    gap: 0;
    min-height: var(--nav-height);
    flex-wrap: wrap;
  }
  .nav-logo {
    background: transparent;
    border: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    height: auto;
    padding: 0;
  }
  /* Logo text hidden on mobile — logo image used instead */
  .nav-logo .logo-text { display: none; }

  .nav-actions { display: none; }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  /* ── Nav-menu: desktop-only pill — hidden on mobile ── */
  .nav-menu,
  .nav-cta-item { display: none; }

  /* ── Layout ── */
  .section    { padding: 60px 20px; }
  .section-sm { padding: 44px 20px; }
  .section-header { margin-bottom: 36px; }
  .section-desc.center { max-width: 100%; }

  /* ── Grids → single column ── */
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .articles-featured { grid-template-columns: 1fr; }
  .highlights-grid { grid-template-columns: 1fr; gap: 1px; }
  .tier-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .value-grid { grid-template-columns: 1fr; }

  /* ── Hero — nav is sticky so no need for nav-height offset ── */
  .hero         { padding-top: 0; }
  .hero-content   { padding: 48px 20px 72px; }
  .hero-subtitle  { font-size: 1rem; max-width: 100%; margin-bottom: 32px; }
  .hero-actions   { flex-direction: column; align-items: stretch; gap: 10px; margin-bottom: 48px; }
  .hero-actions .btn { justify-content: center; }
  .hero-stats     { gap: 20px 32px; padding-top: 28px; }
  .stat-num       { font-size: 1.875rem; }
  .slide-visual   { display: none; } /* decorative SVG — not needed on mobile */

  /* ── Page hero (inner pages) — nav is sticky, less top offset needed ── */
  .page-hero   { padding: 48px 20px 48px; min-height: 220px; }
  .page-hero h1 { font-size: clamp(1.5rem, 6.5vw, 2.25rem); }
  .page-hero p  { font-size: 1rem; max-width: 100%; }
  .breadcrumb  { flex-wrap: wrap; }

  /* ── Highlight cells ── */
  .highlight-cell { padding: 28px 20px; }
  /* For single-column layout, remove right border, add bottom border */
  .highlights-section .highlight-cell {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .highlights-section .highlight-cell:last-child { border-bottom: none; }

  /* ── Product cards ── */
  .product-card-thumb { aspect-ratio: 16/9; }
  .product-card-body  { padding: 20px; }
  .product-card-footer { flex-direction: column; align-items: flex-start; gap: 16px; }

  /* ── News cards ── */
  .news-body { padding: 16px; }

  /* ── CTA band ── */
  .cta-band { padding: 36px 24px; border-radius: var(--radius); }
  .cta-actions { justify-content: center; flex-direction: column; width: 100%; gap: 10px; }
  .cta-actions .btn { width: 100%; justify-content: center; }

  /* ── Social float: smaller on mobile ── */
  .social-float { bottom: 72px; right: 16px; gap: 8px; }
  .social-btn   { width: 40px; height: 40px; }

  /* ── Spec table ── */
  .spec-table           { font-size: 0.8125rem; }
  .spec-table td        { padding: 10px 12px; }
  .spec-table td:first-child { width: 40%; }

  /* ── Tier cards ── */
  .tier-card { padding: 22px 18px; }
  .tier-mpa  { font-size: 1.625rem; }

  /* ── Footer ── */
  .footer       { padding: 52px 20px 0; }
  .footer-about { max-width: 100%; }

  /* ── Product detail ── */
  .product-detail-wrap { padding: 48px 20px; gap: 32px; }

  /* ── Article filter: tighter gap ── */
  .article-filter { gap: 8px; }
}

/* ── Small phones (480px and below) ── */
@media (max-width: 480px) {
  .section    { padding: 48px 16px; }
  .section-sm { padding: 36px 16px; }
  .section-header { margin-bottom: 28px; }
  .nav-inner  { padding: 0 16px; }

  /* Page hero */
  .page-hero   { padding: 36px 16px 40px; min-height: 200px; }
  .page-hero h1 { font-size: 1.5rem; }
  .page-hero p  { font-size: 0.9375rem; }

  /* Hero */
  .hero-content  { padding: 36px 16px 60px; }
  .hero-title    { font-size: 1.75rem; }
  .hero-subtitle { font-size: 0.9375rem; margin-bottom: 28px; }
  .hero-actions  { margin-bottom: 36px; }
  /* Stats: 2-column grid on small phones */
  .hero-stats  { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-top: 24px; }
  .stat-num    { font-size: 1.625rem; }
  .stat-label  { font-size: 0.75rem; }

  /* Cards & panels */
  .product-card-body { padding: 16px; }
  .news-body         { padding: 14px; }
  .highlight-cell    { padding: 22px 16px; }
  .shop-panel        { padding: 28px 18px 22px; }
  .order-form        { padding: 22px 16px; }
  .tier-card         { padding: 18px 16px; }
  .cta-band          { padding: 28px 16px; }

  /* Footer */
  .footer            { padding: 44px 16px 0; }
  .footer-grid       { gap: 24px; }
  .footer-bottom     { flex-direction: column; gap: 14px; text-align: center; }
  .footer-bottom-links { flex-wrap: wrap; justify-content: center; gap: 16px; }

  /* Buttons */
  .btn-lg  { padding: 13px 24px; font-size: 0.9375rem; }
  .btn-sm  { padding: 9px 16px; }

  /* Breadcrumb: single-line scroll on very narrow */
  .breadcrumb { font-size: 0.75rem; gap: 5px; }
}

/* ============================================
   MOBILE NAVIGATION OVERLAY
   ============================================ */

/* Scroll lock — applied to body when mobile menu is open */
body.nav-open {
  overflow: hidden;
  touch-action: none;
}

/* Base state: hidden on all screen sizes by default */
.mobile-menu { display: none; }
.mm-backdrop  { display: none; }

@media (max-width: 768px) {

  /* ── Full-screen slide-in overlay ── */
  .mobile-menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(8, 13, 22, 0.99);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    visibility: hidden;
    transform: translateX(100%);
    transition:
      transform 0.38s cubic-bezier(0.32, 0.72, 0, 1),
      visibility 0s linear 0.38s;
    will-change: transform;
  }
  .mobile-menu.open {
    visibility: visible;
    transform: translateX(0);
    transition:
      transform 0.38s cubic-bezier(0.32, 0.72, 0, 1),
      visibility 0s linear 0s;
  }

  /* ── Menu header: logo left, close button right ── */
  .mm-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: var(--nav-height);
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .mm-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
  }
  .mm-logo img { height: 32px; width: auto; }
  .mm-logo-text {
    display: none;
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    color: var(--light);
  }
  .mm-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(247, 250, 252, 0.7);
    cursor: pointer;
    transition:
      background var(--t) var(--ease),
      color var(--t) var(--ease),
      border-color var(--t) var(--ease);
  }
  .mm-close:hover {
    background: rgba(255, 255, 255, 0.13);
    border-color: rgba(255, 255, 255, 0.18);
    color: var(--light);
  }

  /* ── Scrollable body ── */
  .mm-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: 10px 12px 16px;
  }

  /* ── Nav list ── */
  .mm-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .mm-item { position: relative; }

  /* ── Link row: wraps anchor + chevron button for dropdown items ── */
  .mm-link-row {
    display: flex;
    align-items: stretch;
    border-radius: var(--radius-sm);
    transition: background var(--t) var(--ease);
  }
  .mm-link-row:hover { background: rgba(255, 255, 255, 0.05); }
  .mm-link-row .mm-link {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    flex: 1;
  }
  .mm-link-row .mm-link:hover { background: transparent; }

  /* ── Nav link (standalone and inside link-row) ── */
  .mm-link {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 13px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(247, 250, 252, 0.82);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1.4;
    transition: background var(--t) var(--ease), color var(--t) var(--ease);
  }
  .mm-item:not(.mm-has-sub) a.mm-link:hover { background: rgba(255, 255, 255, 0.07); color: var(--light); }
  .mm-link.active { color: var(--brand-light); }

  /* ── Chevron toggle button ── */
  .mm-sub-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 48px;
    background: none;
    border: none;
    border-left: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: rgba(247, 250, 252, 0.4);
    cursor: pointer;
    transition: background var(--t) var(--ease), color var(--t) var(--ease);
  }
  .mm-sub-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(247, 250, 252, 0.9);
  }
  .mm-has-sub.open > .mm-link-row .mm-sub-toggle {
    color: var(--brand-light);
    background: rgba(21, 168, 192, 0.09);
  }

  /* ── Chevron icon ── */
  .mm-chevron {
    transition: transform var(--t-med) var(--ease);
    flex-shrink: 0;
  }
  .mm-has-sub.open > .mm-link-row .mm-chevron { transform: rotate(180deg); }

  /* ── Submenu: collapsed by default, expands on .open ── */
  .mm-sub {
    list-style: none;
    padding: 0 8px;
    margin: 0 0 0 10px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    border-left: 2px solid rgba(255, 255, 255, 0.07);
    transition:
      max-height 0.32s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.25s var(--ease),
      padding 0.28s var(--ease),
      margin 0.28s var(--ease);
  }
  .mm-has-sub.open > .mm-sub {
    max-height: 400px;
    opacity: 1;
    padding: 4px 8px;
    margin: 4px 0 4px 10px;
  }

  /* ── Submenu links ── */
  .mm-sublink {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 400;
    color: rgba(247, 250, 252, 0.6);
    text-decoration: none;
    transition: background var(--t) var(--ease), color var(--t) var(--ease);
  }
  .mm-sublink::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--brand);
    flex-shrink: 0;
    opacity: 0.7;
  }
  .mm-sublink:hover {
    background: rgba(255, 255, 255, 0.06);
    color: rgba(247, 250, 252, 0.95);
  }
  .mm-sublink.active { color: var(--brand-light); }

  /* ── Sticky footer with CTA ── */
  .mm-footer {
    flex-shrink: 0;
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(8, 13, 22, 0.99);
  }
  .mm-cta {
    display: flex !important;
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
  }

  /* ── Backdrop ── */
  .mm-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1099;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-med) var(--ease);
  }
  .mm-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ============================================
   ARTICLES — HOME PAGE FEATURED BLOCK
   ============================================ */
.articles-featured {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
  align-items: start;
}

/* ============================================
   ARTICLES — LIST PAGE
   ============================================ */
.article-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Article grid fade */
#articleGrid { transition: opacity var(--t-fast) var(--ease); }

/* Empty state */
.article-empty {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 24px;
  color: var(--text-muted);
  text-align: center;
  grid-column: 1 / -1;
}
.article-empty-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--light-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
}
.article-empty p { font-size: 0.9375rem; margin: 0; }

/* ============================================
   ARTICLE — DETAIL PAGE
   ============================================ */

/* Single-column centered layout */
.article-layout {
  max-width: 780px;
  margin: 0 auto;
  padding: 64px 28px 96px;
}

/* Article header */
.article-header { margin-bottom: 40px; }

.article-cat-badge {
  display: inline-block;
  padding: 4px 14px;
  background: var(--brand-10);
  color: var(--brand);
  border-radius: 100px;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.article-excerpt {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 28px;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.article-author-block {
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--brand-10);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.article-author-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.article-meta-sep { color: var(--border); }

.article-date, .article-read-time {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Cover image */
.article-cover {
  width: 100%;
  aspect-ratio: 16/7;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 56px;
  background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark-4) 100%);
  display: flex; align-items: center; justify-content: center;
}

.article-cover img {
  width: 100%; height: 100%; object-fit: cover;
}

/* Article body typography */
.article-body { color: var(--text-primary); }

.article-body h2 {
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 700;
  margin-top: 52px;
  margin-bottom: 16px;
  color: var(--text-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--brand-10);
}

.article-body h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.article-body p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 22px 0;
  padding-left: 0;
  list-style: none;
}

.article-body ul li,
.article-body ol li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--brand);
}

.article-body ol { counter-reset: ol-counter; }
.article-body ol li { counter-increment: ol-counter; }
.article-body ol li::before {
  content: counter(ol-counter) '.';
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--brand);
  font-size: 0.875rem;
}

.article-body blockquote {
  margin: 32px 0;
  padding: 24px 28px;
  background: linear-gradient(135deg, rgba(12,125,145,0.06), rgba(12,125,145,0.03));
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body blockquote p {
  font-size: 1.0625rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 0;
  line-height: 1.7;
}

.article-body blockquote cite {
  display: block;
  margin-top: 10px;
  font-size: 0.8125rem;
  font-style: normal;
  font-weight: 600;
  color: var(--brand);
}

.article-body img {
  width: 100%;
  border-radius: var(--radius);
  margin: 32px 0;
}

.article-body .note {
  display: flex;
  gap: 14px;
  padding: 18px 22px;
  background: var(--light-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 32px 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.article-body .note::before {
  content: '💡';
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.article-tag {
  display: inline-block;
  padding: 5px 14px;
  background: var(--light-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

.article-tag:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* Author bio box */
.author-bio {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 28px;
  background: var(--light-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-top: 48px;
}

.author-bio-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--brand-10);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.author-bio-name {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.author-bio-role {
  font-size: 0.8125rem;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 10px;
}

.author-bio-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Related articles */
.related-section { padding: 64px 28px; background: var(--light-2); }
.related-section .container { max-width: 780px; }

/* Responsive */
@media (max-width: 768px) {
  .article-layout { padding: 48px 20px 72px; }
  .article-cover   { aspect-ratio: 16/9; margin-bottom: 36px; }
  .article-body h2 { margin-top: 36px; }
  .author-bio      { flex-direction: column; }
}

/* ============================================
   SHOP & ORDER FORM
   ============================================ */

/* 2×2 order channel grid */
.shop-panels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

/* Individual panel card */
.shop-panel {
  position: relative;
  background: var(--light);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), transform var(--t) var(--ease);
}
.shop-panel:not(.shop-panel-disabled):hover {
  border-color: var(--brand);
  box-shadow: 0 8px 32px rgba(12,125,145,0.12);
  transform: translateY(-3px);
}
.shop-panel-disabled {
  opacity: 0.58;
}
.shop-panel-icon {
  width: 52px; height: 52px;
  background: var(--brand-10);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
  flex-shrink: 0;
}
.shop-panel-badge {
  position: absolute;
  top: 20px; right: 20px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--light-3);
  color: var(--text-secondary);
}
.shop-panel-badge.soon {
  background: rgba(160,174,192,0.18);
  color: var(--text-muted);
}
.shop-panel-badge.active {
  background: var(--brand-10);
  color: var(--brand);
}
.shop-panel-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.shop-panel-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  margin: 0;
}

/* Order form */
.order-form-wrap {
  max-width: 700px;
  margin: 0 auto;
  scroll-margin-top: calc(var(--nav-height) + 32px);
}
.order-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
  background: var(--light);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}
.form-label .req { color: var(--brand); margin-left: 2px; }
.form-input,
.form-textarea,
.form-select {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--light);
  width: 100%;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(12,125,145,0.12);
}
.form-textarea {
  resize: vertical;
  min-height: 110px;
}
.form-select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%234A5568' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 36px;
}
.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: -8px;
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 8px;
}
.file-upload-area {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--dark-2);
  cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.file-upload-area:hover,
.file-upload-area.drag-over {
  border-color: var(--brand);
  background: var(--brand-10);
}
.file-upload-area .file-names {
  font-size: 0.85rem;
  color: var(--brand-light);
  font-weight: 600;
  word-break: break-all;
}

@media (max-width: 768px) {
  .shop-panels     { grid-template-columns: 1fr; }
  .form-row        { grid-template-columns: 1fr; }
  .order-form      { padding: 28px 20px; }
  .shop-panel      { padding: 32px 24px 28px; }
}

/* ============================================
   SLM PRINT-LAYER HOVER (product-card-thumb)
   Evokes selective laser melting scan pass
   ============================================ */
.product-card-thumb::before,
.product-card-thumb::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--t-slow) var(--ease);
  z-index: 2;
}
/* horizontal recoater bar sweeping bottom → top */
.product-card-thumb::before {
  height: 2px;
  bottom: 0;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--brand-light-95) 50%,
    transparent 100%);
  box-shadow: 0 0 14px 2px var(--brand-light-55),
              0 -10px 24px -4px var(--brand-light-35);
}
/* already-sintered region glow trailing below the scan line */
.product-card-thumb::after {
  top: 100%;
  height: 0;
  background: linear-gradient(180deg,
    var(--brand-light-20) 0%,
    var(--brand-light-10) 40%,
    transparent 100%);
  mix-blend-mode: screen;
}
.product-card:hover .product-card-thumb::before {
  opacity: 1;
  animation: slm-scan 2.2s var(--ease) infinite;
}
.product-card:hover .product-card-thumb::after {
  opacity: 1;
  animation: slm-sintered 2.2s var(--ease) infinite;
}
@keyframes slm-scan {
  0%   { bottom: 0;   opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { bottom: 100%; opacity: 0; }
}
@keyframes slm-sintered {
  0%   { top: 100%; height: 0; }
  100% { top: 0;    height: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .product-card:hover .product-card-thumb::before,
  .product-card:hover .product-card-thumb::after { animation: none; opacity: 0; }
}

/* ============================================
   SLICING PROGRESS COUNTER (.stat-num[data-slice])
   ============================================ */
.stat-num[data-slice] {
  position: relative;
  display: inline-block;
  padding-bottom: 6px;
}
.stat-num[data-slice]::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-light) 100%);
  box-shadow: 0 0 8px var(--brand-light-55);
  transition: width var(--t-hero) var(--ease);
}
.stat-num[data-slice].sliced::after { width: 100%; }
@media (prefers-reduced-motion: reduce) {
  .stat-num[data-slice]::after { transition: none; width: 100%; }
}

/* ============================================
   404 PRINT-FAILURE PAGE
   ============================================ */
.pf-wrap {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  font-family: var(--font);
}
.pf-console {
  background: var(--dark);
  color: var(--text-on-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  text-align: left;
  padding: 18px 20px 20px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  margin-bottom: 36px;
  box-shadow: var(--shadow-xl);
}
.pf-console-head {
  display: flex; align-items: center;
  padding-bottom: 12px; margin-bottom: 12px;
  border-bottom: 1px solid var(--border-dark);
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-on-dark-2);
}
.pf-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--status-err);
  box-shadow: 16px 0 0 var(--status-warn), 32px 0 0 var(--status-ok);
  margin-right: 28px;
}
.pf-line { white-space: pre-wrap; }
.pf-line .ok   { color: var(--status-ok); }
.pf-line .warn { color: var(--status-warn); }
.pf-line .err  { color: var(--status-err); font-weight: 600; }
.pf-line .dim  { color: var(--text-on-dark-2); }
.pf-cursor {
  display: inline-block; width: 8px; height: 1em;
  background: var(--brand-light); vertical-align: -2px;
  animation: pf-blink 1s steps(2) infinite;
}
@keyframes pf-blink { 50% { opacity: 0; } }

.pf-layer-visual {
  position: relative;
  width: 160px; height: 90px;
  margin: 0 auto 28px;
  border: 1px dashed var(--brand-20);
  background:
    repeating-linear-gradient(
      0deg,
      var(--brand-10) 0px,
      var(--brand-10) 1px,
      transparent 1px,
      transparent 6px
    );
}
.pf-layer-visual::before {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 62%;
  background: linear-gradient(180deg, var(--brand-light-20), var(--brand-light-10));
  border-top: 1px solid var(--status-err);
}
.pf-layer-visual::after {
  content: "LAYER #404 — ABORTED";
  position: absolute; left: 50%; top: 62%;
  transform: translate(-50%, -50%);
  font-size: 0.6rem; letter-spacing: 0.14em;
  color: var(--status-err); font-weight: 700;
  background: var(--dark); padding: 2px 6px;
}
@media (prefers-reduced-motion: reduce) {
  .pf-cursor { animation: none; }
}