/* ============================================================
   LIFTERBOTTLE™ — KCA
   Aesthetic: Industrial precision / scientific credibility
   Palette: Near-black, raw steel, acid yellow accent
   Fonts: Bebas Neue (display) + Barlow (body)
   ============================================================ */

:root {
  --black:     #0d0d0d;
  --dark:      #141414;
  --steel:     #1e2024;
  --mid:       #2c2f35;
  --border:    #333740;
  --muted:     #6b7280;
  --light:     #a8adb8;
  --white:     #f4f4f2;
  --accent:    #c8a84b;   /* gold/brass — mining industry */
  --accent2:   #4a90d9;   /* blue for secondary actions */
  --danger:    #c0392b;

  --font-display: 'Bebas Neue', sans-serif;
  --font-cond:    'Barlow Condensed', sans-serif;
  --font-body:    'Barlow', sans-serif;

  --max-w: 1200px;
  --nav-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- SECTION LABELS ---- */
.section-label {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 2.5rem;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-block;
  font-family: var(--font-cond);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.75rem 1.75rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-solid {
  background: var(--accent);
  color: var(--black);
  border-color: var(--accent);
}
.btn-solid:hover {
  background: transparent;
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--black);
  border-color: rgba(0,0,0,0.3);
}
.btn-outline-dark:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(13,13,13,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo img { height: 40px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin-left: auto;
}

.nav-links a {
  font-family: var(--font-cond);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--light);
  padding: 0.4rem 0.75rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  border-bottom-color: var(--accent);
}

.nav-cta {
  background: var(--accent) !important;
  color: var(--black) !important;
  border-bottom-color: transparent !important;
  padding: 0.4rem 1.25rem !important;
  margin-left: 0.5rem;
}
.nav-cta:hover {
  background: var(--white) !important;
  color: var(--black) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(30%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(13,13,13,0.92) 0%,
    rgba(13,13,13,0.7) 50%,
    rgba(13,13,13,0.3) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.hero-tag {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero-tag::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9rem);
  line-height: 0.9;
  color: var(--white);
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}

.hero-title .tm {
  font-size: 0.35em;
  vertical-align: super;
  color: var(--accent);
}

.hero-sub {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  color: rgba(244,244,242,0.75);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 2rem;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-scroll-line {
  width: 40px;
  height: 1px;
  background: var(--muted);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleX(1); opacity: 0.5; }
  50% { transform: scaleX(1.4); opacity: 1; }
}

/* ============================================================
   INTRO STRIP
   ============================================================ */
.intro-strip {
  background: var(--accent);
  padding: 0;
}

.intro-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  divide: 1px solid rgba(0,0,0,0.15);
}

.intro-item {
  padding: 1.75rem 2rem;
  border-right: 1px solid rgba(0,0,0,0.15);
  text-align: center;
}
.intro-item:last-child { border-right: none; }

.intro-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--black);
  line-height: 1;
}

.intro-label {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.6);
  margin-top: 0.25rem;
}

/* ============================================================
   PROBLEM / SOLUTION
   ============================================================ */
.problem {
  padding: 7rem 0;
  background: var(--dark);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.problem-text p {
  color: var(--light);
  margin-bottom: 1.25rem;
  font-weight: 300;
  font-size: 1.05rem;
}

.problem-solution {
  color: var(--white) !important;
  font-size: 1.1rem !important;
  padding: 1.25rem;
  border-left: 3px solid var(--accent);
  background: rgba(200,168,75,0.06);
}

.compare-card {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}

.compare-bad,
.compare-good {
  padding: 2rem;
}

.compare-bad {
  background: rgba(192,57,43,0.08);
  border-bottom: 1px solid var(--border);
}

.compare-good {
  background: rgba(74,144,217,0.08);
}

.compare-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.compare-bad .compare-icon { color: var(--danger); }
.compare-good .compare-icon { color: var(--accent2); }

.compare-bad strong,
.compare-good strong {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
}

.compare-bad p,
.compare-good p {
  font-size: 0.9rem;
  color: var(--light);
  font-weight: 300;
}

.compare-vs {
  text-align: center;
  padding: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  background: var(--mid);
  color: var(--muted);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ============================================================
   PRODUCTS PREVIEW
   ============================================================ */
.products-preview {
  padding: 7rem 0;
  background: var(--black);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1.5px solid var(--border);
  margin-bottom: 3rem;
}

.product-card {
  background: var(--dark);
  display: flex;
  flex-direction: column;
  transition: background 0.25s;
  cursor: pointer;
}

.product-card:hover {
  background: var(--steel);
}

.product-img-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--mid);
}

.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-img-wrap img {
  transform: scale(1.04);
}

.product-info {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.product-cat {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.product-info h3 {
  font-family: var(--font-cond);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.product-price {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--white);
  margin-top: 0.25rem;
}

.product-link {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: auto;
  padding-top: 0.75rem;
  transition: color 0.2s;
}

.product-card:hover .product-link {
  color: var(--accent);
}

.products-cta {
  text-align: center;
}

/* ============================================================
   USE CASES
   ============================================================ */
.use-cases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 540px;
}

.use-case-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.use-case-card.met {
  background: linear-gradient(160deg, #1a1208 0%, #0d0d0d 100%);
  background-image: url('https://lifterbottle.com/wp-content/uploads/2022/03/drilling-rig-shale-gas-search-natural-gas.jpg');
  background-size: cover;
  background-position: center;
}

.use-case-card.bio {
  background: linear-gradient(160deg, #081218 0%, #0d0d0d 100%);
  background-image: url('https://lifterbottle.com/wp-content/uploads/2023/09/Lifterbottle-Single-Bottle-window-view-pic.png');
  background-size: cover;
  background-position: center top;
}

.use-case-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,13,13,0.95) 0%, rgba(13,13,13,0.4) 60%, transparent 100%);
  z-index: 0;
}

.use-case-inner {
  position: relative;
  z-index: 1;
  padding: 3rem;
}

.use-case-tag {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.use-case-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 3rem);
  color: var(--white);
  margin-bottom: 1rem;
  line-height: 1;
}

.use-case-card p {
  font-size: 0.95rem;
  font-weight: 300;
  color: rgba(244,244,242,0.75);
  max-width: 380px;
  margin-bottom: 1.5rem;
}

/* ============================================================
   KCA STRIP
   ============================================================ */
.kca-strip {
  background: var(--white);
  padding: 5rem 0;
}

.kca-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5rem;
  align-items: center;
}

.kca-logo-wrap img {
  max-width: 280px;
  width: 100%;
}

.kca-text p {
  color: #444;
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  line-height: 1.75;
}

/* ============================================================
   DISTRIBUTORS
   ============================================================ */
.dist-strip {
  background: var(--steel);
  padding: 4rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.dist-strip .section-label {
  margin-bottom: 2rem;
}

.dist-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.dist-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.dist-item strong {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--white);
}

.dist-item span {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--dark);
  padding: 5rem 0 2rem;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand img { margin-bottom: 1rem; }

.footer-brand p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.footer-patent {
  font-family: var(--font-cond);
  font-size: 0.7rem !important;
  letter-spacing: 0.1em;
  color: var(--accent) !important;
}

.footer-links h4,
.footer-contact h4 {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }

.footer-contact p {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.footer-contact a {
  color: var(--muted);
  transition: color 0.2s;
}
.footer-contact a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--muted);
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  padding: calc(var(--nav-h) + 5rem) 0 4rem;
  background: var(--dark);
  border-bottom: 1px solid var(--border);
}

.page-hero .section-label { margin-bottom: 0.75rem; }

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  line-height: 0.95;
  color: var(--white);
}

/* ============================================================
   INNER PAGE CONTENT
   ============================================================ */
.page-content {
  padding: 6rem 0;
  background: var(--black);
}

.content-block {
  max-width: 760px;
  margin: 0 auto 5rem;
}

.content-block h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  color: var(--white);
  margin-bottom: 1.25rem;
  margin-top: 2.5rem;
}
.content-block h2:first-child { margin-top: 0; }

.content-block p {
  color: var(--light);
  font-weight: 300;
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.content-block .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

/* ============================================================
   SHOP PAGE
   ============================================================ */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1.5px solid var(--border);
}

.shop-notice {
  background: rgba(200,168,75,0.08);
  border: 1px solid rgba(200,168,75,0.3);
  padding: 1.25rem 1.5rem;
  margin-bottom: 3rem;
  font-size: 0.9rem;
  color: var(--light);
}

.shop-notice a {
  color: var(--accent);
  text-decoration: underline;
}

.dist-table {
  margin-top: 5rem;
}

.dist-table h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 2rem;
}

.dist-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.dist-entry {
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 1.75rem;
}

.dist-entry strong {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--white);
  display: block;
  margin-bottom: 0.75rem;
}

.dist-entry p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

.dist-entry a { color: var(--accent); }

/* ============================================================
   VIDEO EMBED
   ============================================================ */
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 2.5rem 0;
  background: var(--steel);
}

.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.map-wrap {
  aspect-ratio: 4/3;
  overflow: hidden;
  border: 1px solid var(--border);
}

.map-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--steel);
  border: 1px solid var(--border);
  color: var(--white);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea { min-height: 120px; }

.office-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 5rem;
}

.office-card {
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 1.75rem;
}

.office-card h3 {
  font-family: var(--font-cond);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.office-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.8;
}

.office-card a { color: var(--light); }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-hero-img {
  margin: 3rem 0;
  overflow: hidden;
  max-height: 420px;
}

.about-hero-img img {
  width: 100%;
  object-fit: cover;
  object-position: center;
}

/* ============================================================
   PRODUCT IMAGE GALLERY
   ============================================================ */
.img-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2.5rem 0;
}

.img-gallery img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--border);
}

.img-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.img-row figure {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.img-row figcaption {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.model-card {
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 2rem;
  margin: 1.5rem 0;
}

.model-card h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.model-card blockquote {
  font-style: italic;
  color: var(--muted);
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1rem 0;
}

.patent-badge {
  display: inline-block;
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(200,168,75,0.4);
  padding: 0.35rem 0.75rem;
  margin-top: 1.5rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .intro-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .dist-grid { grid-template-columns: repeat(2, 1fr); }
  .kca-grid { gap: 3rem; }
  .shop-grid { grid-template-columns: repeat(2, 1fr); }
  .office-cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem 2rem;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    transition: transform 0.3s ease;
    z-index: 999;
  }

  .nav-links.open { transform: translateY(0); }

  .nav-links a {
    font-size: 1rem;
    padding: 0.6rem 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
    border-right: none;
  }

  .nav-cta { margin-left: 0 !important; }

  .hero-title { font-size: clamp(3rem, 12vw, 5rem); }

  .problem-grid { grid-template-columns: 1fr; gap: 3rem; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .use-cases { grid-template-columns: 1fr; }
  .use-case-card { min-height: 380px; }
  .kca-grid { grid-template-columns: 1fr; gap: 2rem; }
  .kca-logo-wrap img { max-width: 220px; }
  .dist-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .dist-list { grid-template-columns: 1fr; }
  .office-cards { grid-template-columns: 1fr; }
  .img-row { grid-template-columns: 1fr; }
  .intro-strip-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .dist-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .intro-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .shop-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}