/* =============================================================
   LUMARA CORPORATION — Premium Industrial Supply
   Design System
   ============================================================= */

:root {
  /* Brand colors (from Lumara logo) */
  --lumara-blue:        #0A1654;   /* deep Lumara navy */
  --lumara-blue-700:    #131F6B;
  --lumara-blue-600:    #1E2C84;
  --lumara-blue-500:    #2A3A9C;
  --lumara-blue-100:    #E5E8F4;

  --lumara-gold:        #C8A04A;   /* mid gold */
  --lumara-gold-dark:   #8C6A2A;   /* burnt amber */
  --lumara-gold-light:  #E8D08A;   /* pale wheat */

  /* Industrial neutrals */
  --off-white:          #FAF8F3;   /* warm off-white */
  --sand:               #EFE8DB;   /* light sand */
  --steel-100:          #E5E7EB;
  --steel-200:          #CBD0D8;
  --steel-300:          #98A0AE;
  --steel-500:          #5B6470;
  --graphite:           #2A2E36;
  --graphite-deep:      #14171C;
  --ink:                #0E1014;

  /* Semantic */
  --bg:                 var(--off-white);
  --bg-elev:            #FFFFFF;
  --bg-dark:            var(--lumara-blue);
  --bg-darker:          var(--graphite-deep);

  --text:               var(--graphite);
  --text-muted:         var(--steel-500);
  --text-on-dark:       #F2F4FA;
  --text-on-dark-muted: #B4BBD0;

  --border:             rgba(20, 23, 28, 0.10);
  --border-strong:      rgba(20, 23, 28, 0.18);
  --border-dark:        rgba(255, 255, 255, 0.12);

  /* Type scale */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --text-xs:    0.75rem;     /* 12 */
  --text-sm:    0.875rem;    /* 14 */
  --text-base:  1rem;        /* 16 */
  --text-md:    1.125rem;    /* 18 */
  --text-lg:    1.375rem;    /* 22 */
  --text-xl:    clamp(1.6rem, 1.2rem + 1.4vw, 2.25rem);
  --text-2xl:   clamp(2.1rem, 1.5rem + 2.4vw, 3.25rem);
  --text-hero:  clamp(2.6rem, 2rem + 3.6vw, 4.75rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --section-y: clamp(4rem, 7vw, 7.5rem);

  /* Radii / shadows */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 14px;
  --radius-xl: 22px;

  --shadow-sm:   0 1px 2px rgba(10, 22, 84, 0.06);
  --shadow:      0 6px 20px -4px rgba(10, 22, 84, 0.10), 0 2px 4px rgba(10,22,84,0.05);
  --shadow-lg:   0 24px 60px -12px rgba(10, 22, 84, 0.25);

  --content-max: 1200px;
  --content-wide: 1400px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* Resets */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, picture, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
ul, ol { padding: 0; list-style: none; }

/* Typography helpers */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--lumara-blue);
  letter-spacing: -0.015em;
  line-height: 1.1;
}
h1 { font-size: var(--text-hero); font-weight: 500; }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); font-family: var(--font-sans); font-weight: 600; letter-spacing: -0.005em; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lumara-gold-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: currentColor;
}

.lead { font-size: var(--text-md); color: var(--text-muted); line-height: 1.7; }
.small { font-size: var(--text-sm); }
.muted { color: var(--text-muted); }

/* Layout primitives */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}
.container-wide { max-width: var(--content-wide); }

section { padding: var(--section-y) 0; }
.section-tight { padding: clamp(2.5rem, 4vw, 4rem) 0; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(250, 248, 243, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(250, 248, 243, 0.95);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-8);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--lumara-blue);
  font-size: 1.05rem;
}
.brand .brand-mark { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text { letter-spacing: 0.22em; }

.nav-links {
  display: flex;
  gap: clamp(1.1rem, 2vw, 2rem);
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a {
  color: var(--graphite);
  padding: 0.4rem 0;
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--lumara-blue); }
.nav-links a.is-active {
  color: var(--lumara-blue);
}
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -22px;
  height: 2px;
  background: linear-gradient(90deg, var(--lumara-gold), var(--lumara-gold-dark));
}

.nav-cta {
  background: var(--lumara-blue);
  color: var(--off-white) !important;
  padding: 0.6rem 1.1rem !important;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-cta:hover { background: var(--lumara-blue-700); transform: translateY(-1px); }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--lumara-blue);
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 880px) {
  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--bg-elev);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
  }
  .nav-links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links a.is-active::after { display: none; }
  .nav-links a.is-active { background: var(--sand); }
  .nav-cta { margin: 0.75rem 1.5rem; text-align: center; }
  .nav-toggle { display: inline-flex; }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.95rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
              color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--lumara-blue);
  color: var(--off-white);
}
.btn-primary:hover { background: var(--lumara-blue-700); box-shadow: var(--shadow); }
.btn-gold {
  background: linear-gradient(135deg, var(--lumara-gold-light), var(--lumara-gold), var(--lumara-gold-dark));
  color: var(--lumara-blue);
  border-color: rgba(255,255,255,0.4);
}
.btn-gold:hover { box-shadow: 0 12px 30px -8px rgba(140, 106, 42, 0.45); }
.btn-ghost {
  background: transparent;
  color: var(--lumara-blue);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--lumara-blue); color: var(--off-white); border-color: var(--lumara-blue); }
.btn-on-dark {
  background: transparent;
  color: var(--text-on-dark);
  border-color: rgba(255,255,255,0.3);
}
.btn-on-dark:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: clamp(4rem, 8vw, 8rem) 0 clamp(4rem, 7vw, 7rem);
  overflow: hidden;
  background: linear-gradient(180deg, var(--off-white) 0%, var(--sand) 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(200, 160, 74, 0.10), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(10, 22, 84, 0.06), transparent 60%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  position: relative;
}
.hero-content { max-width: 640px; }
.hero h1 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}
.hero h1 .accent {
  background: linear-gradient(180deg, var(--lumara-gold-dark) 0%, var(--lumara-gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: normal;
  font-weight: 700;
}
.hero p.lead { max-width: 540px; margin-bottom: var(--space-8); }
.cta-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 22, 84, 0.55) 100%);
}
.hero-visual .visual-badge {
  position: absolute;
  left: 1.25rem; bottom: 1.25rem;
  color: var(--off-white);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  z-index: 2;
}
.hero-visual .visual-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-md);
  text-transform: none;
  letter-spacing: 0;
  margin-top: 0.25rem;
  font-weight: 500;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { aspect-ratio: 5 / 4; max-height: 420px; }
}

/* Metric bar */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric {
  background: var(--off-white);
  padding: var(--space-8) var(--space-6);
  text-align: left;
}
.metric .num {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 1.5rem + 1.5vw, 2.7rem);
  font-weight: 500;
  color: var(--lumara-blue);
  line-height: 1;
  display: block;
}
.metric .num em {
  color: var(--lumara-gold-dark);
  font-style: normal;
}
.metric .label {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.6rem;
  display: block;
}
@media (max-width: 760px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   SECTIONS / CARDS
   ============================================================ */
.section-head {
  max-width: 760px;
  margin-bottom: var(--space-12);
}
.section-head h2 { margin-top: var(--space-4); }
.section-head p { margin-top: var(--space-4); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center .eyebrow::before { display: none; }

/* Vertical cards */
.verticals {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.vertical {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.vertical::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lumara-gold-light), var(--lumara-gold), var(--lumara-gold-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.vertical:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(10,22,84,0.15);
}
.vertical:hover::before { transform: scaleX(1); }
.vertical-img {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--steel-100);
}
.vertical-img img { width: 100%; height: 100%; object-fit: cover; }
.vertical h3 { color: var(--lumara-blue); }
.vertical > div:not(.vertical-img) {
  min-height: 13.5rem;
}
.vertical ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0;
  height: 4.75rem;
  align-content: flex-start;
}
.vertical ul li {
  font-size: var(--text-xs);
  border: 1px solid var(--border-strong);
  border-radius: 99px;
  padding: 0.35rem 0.7rem;
  color: var(--text-muted);
  background: var(--sand);
}
.vertical .vlink {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--lumara-blue);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  align-self: flex-start;
}
.vertical .vlink::after {
  content: "→";
  transition: transform 0.2s var(--ease);
}
.vertical:hover .vlink::after { transform: translateX(4px); }

@media (max-width: 760px) {
  .verticals { grid-template-columns: 1fr; }
  .vertical > div:not(.vertical-img) { min-height: 0; }
  .vertical ul { height: auto; }
}

/* Why Lumara - feature list */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.feature {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
}
.feature .icon {
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--lumara-blue);
  color: var(--lumara-gold-light);
  display: inline-flex;
  align-items: center; justify-content: center;
  margin-bottom: var(--space-2);
}
.feature .icon svg { width: 22px; height: 22px; }
.feature h4 { color: var(--lumara-blue); }
.feature p { font-size: var(--text-sm); color: var(--text-muted); line-height: 1.65; }
@media (max-width: 760px) { .features { grid-template-columns: 1fr; } }

/* Highlight strip / product highlights */
.highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.highlight {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  isolation: isolate;
}
.highlight img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.highlight::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(10, 22, 84, 0.85));
}
.highlight .caption {
  position: absolute;
  left: 1rem; right: 1rem; bottom: 1rem;
  z-index: 2;
  color: var(--off-white);
}
.highlight .caption .tag {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lumara-gold-light);
}
.highlight .caption h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--off-white);
  font-size: var(--text-md);
  margin-top: 0.25rem;
}
.highlight:hover img { transform: scale(1.05); }
@media (max-width: 900px) { .highlights { grid-template-columns: repeat(2, 1fr); } }

/* Workflow / process */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  counter-reset: step;
  position: relative;
}
.process::before {
  content: "";
  position: absolute;
  top: 28px; left: 6%; right: 6%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), var(--border-strong), transparent);
  z-index: 0;
}
.step {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  text-align: left;
}
.step .num-circle {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--lumara-blue);
  display: inline-flex;
  align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  position: relative;
  z-index: 1;
}
.step h4 { font-size: var(--text-md); color: var(--lumara-blue); }
.step p { font-size: var(--text-sm); color: var(--text-muted); line-height: 1.6; }

@media (max-width: 980px) {
  .process { grid-template-columns: repeat(2, 1fr); }
  .process::before { display: none; }
}
@media (max-width: 480px) {
  .process { grid-template-columns: 1fr; }
}

/* Final CTA band */
.cta-band {
  background: var(--lumara-blue);
  color: var(--text-on-dark);
  border-radius: var(--radius-xl);
  padding: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-8);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 90% 110%, rgba(200, 160, 74, 0.25), transparent 50%),
    radial-gradient(circle at 5% -10%, rgba(232, 208, 138, 0.10), transparent 50%);
  pointer-events: none;
}
.cta-band > * { position: relative; }
.cta-band h2 { color: var(--off-white); }
.cta-band p { color: var(--text-on-dark-muted); margin-top: var(--space-4); }
.cta-band .actions { display: flex; flex-direction: column; gap: var(--space-3); }
.cta-band .actions .btn { justify-content: center; }
@media (max-width: 800px) {
  .cta-band { grid-template-columns: 1fr; }
}

/* ============================================================
   PRODUCT (Energy / Building) PAGES
   ============================================================ */
.page-header {
  background: linear-gradient(180deg, var(--lumara-blue) 0%, var(--lumara-blue-600) 100%);
  color: var(--text-on-dark);
  padding: clamp(5rem, 9vw, 8rem) 0 clamp(3.5rem, 6vw, 5.5rem);
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(200,160,74,0.18), transparent 50%),
    radial-gradient(ellipse at 10% 90%, rgba(232,208,138,0.08), transparent 50%);
  pointer-events: none;
}
.page-header .container { position: relative; }
.page-header .eyebrow { color: var(--lumara-gold-light); }
.page-header .eyebrow::before { background: var(--lumara-gold-light); }
.page-header h1 {
  color: var(--off-white);
  margin: var(--space-4) 0 var(--space-6);
  max-width: 18ch;
}
.page-header p { color: var(--text-on-dark-muted); max-width: 60ch; font-size: var(--text-md); }

/* Product family card */
.family {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
  padding: clamp(3rem, 5vw, 5rem) 0;
  border-bottom: 1px solid var(--border);
}
.family:last-child { border-bottom: 0; }
.family.reverse { direction: rtl; }
.family.reverse > * { direction: ltr; }
.family-media {
  aspect-ratio: 5 / 6;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: sticky;
  top: 92px;
}
.family-media img { width: 100%; height: 100%; object-fit: cover; }
.family-content > .eyebrow { margin-bottom: var(--space-3); }
.family-content h2 { color: var(--lumara-blue); margin-bottom: var(--space-4); }
.family-content > p.lead { margin-bottom: var(--space-8); }
@media (max-width: 900px) {
  .family { grid-template-columns: 1fr; }
  .family.reverse { direction: ltr; }
  .family-media { position: static; aspect-ratio: 16/10; }
}

/* Product item */
.product {
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0;
}
.product:first-child { border-top: 0; padding-top: 0; }
.product-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.product-head h3 {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--lumara-blue);
  letter-spacing: -0.01em;
}
.product-head .meta {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lumara-gold-dark);
  font-weight: 600;
}
.product p { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: var(--space-4); }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  font-weight: 500;
  color: var(--text-muted);
  background: var(--sand);
  width: 38%;
}
.spec-table td { color: var(--graphite); font-weight: 500; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

.app-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: var(--space-4); }
.app-tags li {
  font-size: var(--text-xs);
  background: var(--lumara-blue-100);
  color: var(--lumara-blue);
  padding: 0.3rem 0.65rem;
  border-radius: 99px;
  font-weight: 500;
}

/* Two column quick product layout */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}
.product-grid > .product {
  border-top: 1px solid var(--border);
  padding-top: var(--space-8);
}
@media (max-width: 760px) { .product-grid { grid-template-columns: 1fr; } }

/* Brochure-style data cards */
.data-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.data-card h3 {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--lumara-blue);
}

/* Calorific values list */
.calorific-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
}
.calorific-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  font-size: var(--text-sm);
}
.calorific-list li:last-child { border-right: 0; }
.calorific-list .name { color: var(--graphite); font-weight: 500; }
.calorific-list .val { color: var(--lumara-gold-dark); font-weight: 600; font-family: var(--font-display); font-size: var(--text-md); }
.calorific-list .ash { font-size: var(--text-xs); color: var(--text-muted); margin-left: 0.4rem; }

/* Categories grid (building materials) */
.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.category {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.category:hover { border-color: var(--lumara-gold); transform: translateY(-2px); }
.category .cat-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--sand);
  color: var(--lumara-blue);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-2);
}
.category h4 { font-size: var(--text-base); color: var(--lumara-blue); font-weight: 600; }
.category p { font-size: var(--text-sm); color: var(--text-muted); }
@media (max-width: 980px) { .categories { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .categories { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .categories { grid-template-columns: 1fr; } }

/* Audience strip */
.audience {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.audience > div {
  padding: var(--space-6);
  border-right: 1px solid var(--border);
}
.audience > div:last-child { border-right: 0; }
.audience h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--lumara-blue);
  margin-bottom: 0.4rem;
}
.audience p { font-size: var(--text-sm); color: var(--text-muted); }
@media (max-width: 880px) {
  .audience { grid-template-columns: repeat(2, 1fr); }
  .audience > div { border-right: 0; border-bottom: 1px solid var(--border); }
}

/* Trust note / disclosure */
.trust-note {
  background: var(--sand);
  border-left: 3px solid var(--lumara-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.trust-note strong { color: var(--graphite); font-weight: 600; }
.trust-note h4 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--lumara-blue);
  margin-bottom: 0.5rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.contact-card {
  background: var(--lumara-blue);
  color: var(--text-on-dark);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.contact-card::after {
  content: "";
  position: absolute; right: -60px; bottom: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(200,160,74,0.25), transparent 70%);
  pointer-events: none;
}
.contact-card h3 { color: var(--off-white); font-family: var(--font-sans); font-weight: 600; font-size: var(--text-lg); }
.contact-card .lead { color: var(--text-on-dark-muted); }
.contact-list { margin-top: var(--space-6); display: grid; gap: var(--space-4); }
.contact-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 0.85rem;
  align-items: start;
}
.contact-list .lbl { font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--lumara-gold-light); display: block; margin-bottom: 0.15rem; }
.contact-list a, .contact-list span.val { color: var(--off-white); font-size: var(--text-md); word-break: break-word; }
.contact-list a:hover { color: var(--lumara-gold-light); }
.contact-list .icn { color: var(--lumara-gold-light); width: 22px; height: 22px; margin-top: 2px; }

.form {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.form h3 { font-family: var(--font-sans); font-size: var(--text-lg); font-weight: 600; color: var(--lumara-blue); margin-bottom: var(--space-2); }
.form > p { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: var(--space-6); }
.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--space-4);
}
.field label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field input, .field select, .field textarea {
  border: 1px solid var(--border-strong);
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 0.85rem 0.95rem;
  font: inherit;
  color: var(--graphite);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--lumara-blue);
  box-shadow: 0 0 0 3px rgba(10, 22, 84, 0.10);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.field-row .field { margin-bottom: 0; }
.form .form-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
  align-items: center;
}
.form .form-actions p { font-size: var(--text-xs); color: var(--text-muted); margin: 0; }
.form-note {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--border-strong);
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.about-grid img {
  width: 100%;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
  box-shadow: var(--shadow);
}
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }

.value-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
}
.value-list li {
  border-top: 2px solid var(--lumara-gold);
  padding-top: var(--space-3);
}
.value-list strong { display: block; color: var(--lumara-blue); font-weight: 600; margin-bottom: 0.3rem; }
.value-list span { font-size: var(--text-sm); color: var(--text-muted); }
@media (max-width: 600px) { .value-list { grid-template-columns: 1fr; } }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--graphite-deep);
  color: var(--text-on-dark);
  padding: var(--space-20) 0 var(--space-8);
  margin-top: var(--space-16);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-dark);
}
.footer-brand p { color: var(--text-on-dark-muted); font-size: var(--text-sm); margin-top: var(--space-4); max-width: 32ch; line-height: 1.7; }
.footer-col h5 {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lumara-gold-light);
  margin-bottom: var(--space-4);
}
.footer-col ul li { margin-bottom: 0.65rem; font-size: var(--text-sm); }
.footer-col ul a { color: var(--text-on-dark-muted); transition: color 0.2s var(--ease); }
.footer-col ul a:hover { color: var(--lumara-gold-light); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--text-on-dark-muted);
}
.footer-bottom .meta a { color: var(--text-on-dark-muted); margin-left: var(--space-3); }
.footer-bottom .meta a:hover { color: var(--lumara-gold-light); }

@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   UTILS
   ============================================================ */
.stack-sm > * + * { margin-top: var(--space-3); }
.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-6); }
.text-on-dark { color: var(--text-on-dark); }
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-12) 0;
}
.hr-gold {
  height: 2px;
  width: 60px;
  background: linear-gradient(90deg, var(--lumara-gold-light), var(--lumara-gold-dark));
  border-radius: 2px;
}
.glyph-fix {
  font-family: var(--font-sans);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
}
.bg-dark { background: var(--lumara-blue); color: var(--text-on-dark); }
.bg-dark h2, .bg-dark h3 { color: var(--off-white); }
.bg-sand { background: var(--sand); }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--lumara-gold);
  outline-offset: 3px;
  border-radius: 4px;
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 8px;
  background: var(--lumara-blue);
  color: var(--off-white);
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: var(--radius);
}
.skip-link:focus { top: 8px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}