/* ============================================
   3C SOLUTION — MODERN REDESIGN
   ============================================ */

/* --- Variables --- */
:root {
  --blue: #0072bc;
  --blue-d: #005a96;
  --green: #22a94b;
  --green-d: #178a3b;
  --teal: #0097a7;
  --teal-d: #00788a;
  --ink: #1a1e24;
  --muted: #68737e;
  --light: #f4f7fa;
  --line: #e2e8f0;
  --dark: #12161b;
  --dark2: #1c2028;
  --gradient-brand: linear-gradient(135deg, var(--blue), var(--teal));
  --gradient-brand-h: linear-gradient(135deg, var(--blue-d), var(--teal-d));
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.12);
  --shadow-xl: 0 30px 80px rgba(0,0,0,.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* --- Reset & Base --- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: #fff;
  overflow-x: hidden;
  line-height: 1.7;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* --- Utility --- */
.section { padding: 100px 0; }
.section-light { background: var(--light); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  background: currentColor;
}
.k-blue { color: var(--blue); }
.k-green { color: var(--green); }
.k-teal { color: var(--teal); }

.section-header { margin-bottom: 60px; }
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--ink);
  margin: .5rem 0 1rem;
  line-height: 1.2;
}
.section-sub {
  color: var(--muted);
  max-width: 600px;
  font-size: 1.05rem;
}
.section-sub.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-brand {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0,114,188,.3);
}
.btn-brand:hover {
  background: var(--gradient-brand-h);
  box-shadow: 0 6px 20px rgba(0,114,188,.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border: 2px solid var(--line);
  color: var(--ink);
}
.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--blue);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0,0,0,.1);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.15);
}

.btn-outline-white {
  background: transparent;
  border: 2px solid rgba(255,255,255,.3);
  color: #fff;
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: #fff;
  color: #fff;
}

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  font-size: .82rem;
  padding: .45rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.topbar a { color: rgba(255,255,255,.7); }
.topbar a:hover { color: #fff; }
.topbar .info-group { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.topbar .info-item { display: flex; align-items: center; gap: .4rem; }
.topbar .info-item i { color: var(--teal); font-size: .75rem; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  padding: .7rem 0;
  transition: all var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.nav-brand img {
  height: 44px;
  width: auto;
  border-radius: 6px;
}
.brand-text .brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -.02em;
}
.brand-text .brand-tag {
  font-size: .6rem;
  letter-spacing: .25em;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.nav-links a {
  padding: .5rem 1rem;
  font-weight: 500;
  font-size: .9rem;
  color: #4a5568;
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--blue);
  background: rgba(0,114,188,.06);
}

.nav-cta .btn { padding: .55rem 1.4rem; font-size: .85rem; }

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   VIDEO HERO
   ============================================ */
.video-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
}
.video-hero video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate(-50%, -50%);
}
.video-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0,0,0,.55) 0%,
    rgba(0,0,0,.35) 40%,
    rgba(0,0,0,.6) 100%
  );
  z-index: 1;
}
.video-hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 24px;
  color: #fff;
}
.video-hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -.03em;
  max-width: 800px;
  animation: fadeUp .8s ease-out;
}
.video-hero-content .lead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: .85;
  max-width: 650px;
  margin-bottom: 2rem;
  line-height: 1.7;
  animation: fadeUp .8s ease-out .15s both;
}
.video-hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp .8s ease-out .3s both;
}
.video-hero-pills {
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp .8s ease-out .45s both;
}
.video-hero-pills .pill-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .88rem;
  font-weight: 600;
  opacity: .9;
}
.video-hero-pills .pill-item i {
  color: var(--green);
  font-size: 1rem;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s infinite;
}
.hero-scroll-indicator a {
  color: rgba(255,255,255,.6);
  font-size: 1.5rem;
  transition: color var(--transition);
}
.hero-scroll-indicator a:hover { color: #fff; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   TAG STRIP
   ============================================ */
.tag-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.tag-strip .pill {
  color: #fff;
  text-align: center;
  font-weight: 700;
  letter-spacing: .25em;
  padding: 1rem 0;
  font-size: .9rem;
}
.tag-strip .p-blue { background: var(--blue); }
.tag-strip .p-green { background: var(--green); }
.tag-strip .p-teal { background: var(--teal); }

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: center;
}
.about-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
  display: block;
}
.about-text .check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
  margin: 1.5rem 0 2rem;
}
.check-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .92rem;
  font-weight: 500;
  color: #4a5568;
}
.check-item i { color: var(--green); font-size: 1rem; }

/* ============================================
   STATS BAND
   ============================================ */
.stats-band {
  background: var(--gradient-brand);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.stats-band .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
  position: relative;
  color: #fff;
}
.stat-item .stat-num {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: .3rem;
}
.stat-item .stat-label {
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: .7;
}

/* ============================================
   WHY CHOOSE / FEATURES
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}
.feature-card:hover::before { opacity: 1; }

.icon-box {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.2rem;
}
.t-blue { background: rgba(0,114,188,.1); color: var(--blue); }
.t-green { background: rgba(34,169,75,.1); color: var(--green); }
.t-teal { background: rgba(0,151,167,.1); color: var(--teal); }

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: .5rem;
  color: var(--ink);
}
.feature-card p {
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.6;
}

/* ============================================
   PRODUCTS & BRANDS
   ============================================ */
.brands-showcase {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-bottom: 4rem;
}

/* ---- Brand Row (alternating image/text) ---- */
.brand-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 20px rgba(0,0,0,.06);
  transition: box-shadow var(--transition), transform var(--transition);
}
.brand-row:hover {
  box-shadow: 0 8px 40px rgba(0,0,0,.12);
  transform: translateY(-4px);
}

/* Reverse layout for alternating rows */
.brand-row-reverse {
  direction: rtl;
}
.brand-row-reverse > * {
  direction: ltr;
}

/* Image half */
.brand-row-img {
  position: relative;
  min-height: 340px;
  overflow: hidden;
}
.brand-row-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.brand-row:hover .brand-row-img img {
  transform: scale(1.05);
}
.brand-row-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,.25) 0%, transparent 60%);
  pointer-events: none;
}

/* Content half */
.brand-row-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 2.5rem 2.5rem 2rem;
}

.brand-badge {
  display: inline-block;
  width: fit-content;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .25rem .7rem;
  border-radius: 999px;
  margin-bottom: .6rem;
}
.badge-blue  { background: rgba(37,99,235,.1);  color: var(--blue); }
.badge-green { background: rgba(5,150,105,.1);  color: var(--green); }
.badge-teal  { background: rgba(13,148,136,.1);  color: var(--teal); }

.brand-row-title {
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: .04em;
  margin-bottom: .75rem;
  position: relative;
}
.brand-row-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 2px;
  margin-top: .5rem;
  transition: width var(--transition);
}
.brand-row:hover .brand-row-title::after {
  width: 80px;
}
.brand-row-title[style*="var(--blue)"]::after  { background: var(--blue); }
.brand-row-title[style*="var(--green)"]::after { background: var(--green); }
.brand-row-title[style*="var(--teal)"]::after  { background: var(--teal); }

.brand-row-desc {
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.brand-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1.2rem;
}

.brand-row-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-weight: 600;
  font-size: .9rem;
  text-decoration: none;
  transition: gap var(--transition);
}
.brand-row-link:hover {
  gap: .65rem;
}
.link-blue  { color: var(--blue); }
.link-green { color: var(--green); }
.link-teal  { color: var(--teal); }

/* ---- Staggered entrance animation ---- */
.brand-row .brand-row-img   { transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1); }
.brand-row .brand-row-content { transition: opacity .7s .15s cubic-bezier(.4,0,.2,1), transform .7s .15s cubic-bezier(.4,0,.2,1); }

/* Reset reveal transform on brand-row — we animate children instead */
.brand-row.reveal { transform: none; }
.brand-row.reveal.visible { transform: none; }

.brand-row:not(.visible) .brand-row-img {
  opacity: 0;
  transform: translateX(-50px);
}
.brand-row-reverse:not(.visible) .brand-row-img {
  transform: translateX(50px);
}
.brand-row:not(.visible) .brand-row-content {
  opacity: 0;
  transform: translateX(50px);
}
.brand-row-reverse:not(.visible) .brand-row-content {
  transform: translateX(-50px);
}

/* Shimmer line on hover */
.brand-row::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  transition: left .6s;
  pointer-events: none;
  z-index: 2;
}
.brand-row:hover::after {
  left: 100%;
}

.chip {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  background: var(--light);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .3rem .8rem;
  color: #4a5568;
  margin: 0 .3rem .4rem 0;
}

.supply-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.supply-item {
  display: flex;
  gap: .9rem;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  transition: all var(--transition);
}
.supply-item:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-sm);
}
.supply-item span {
  font-weight: 600;
  font-size: .92rem;
}

/* ============================================
   SERVICES
   ============================================ */
.services-banner {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
}
.services-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.services-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,114,188,.75), rgba(0,151,167,.65));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 2rem;
}
.services-banner-overlay h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: .4rem;
}
.services-banner-overlay p {
  font-size: 1.05rem;
  opacity: .85;
  margin: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  text-align: center;
}
.service-card .icon-box {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   KNOWLEDGE CENTER
   ============================================ */
.knowledge-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.k-list { display: flex; flex-direction: column; gap: 1rem; }

.k-item {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  transition: all var(--transition);
}
.k-item:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
.k-item h3 {
  font-size: .98rem;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
}
.k-item small { color: var(--muted); }
.k-item .arr {
  margin-left: auto;
  color: var(--teal);
  font-size: 1.1rem;
  transition: transform var(--transition);
}
.k-item:hover .arr { transform: translateX(4px); }

/* ============================================
   CTA BAND
   ============================================ */
.cta-band {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2332 100%);
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,114,188,.15), transparent 70%);
  top: -200px;
  right: -100px;
}
.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  position: relative;
}
.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: .5rem;
}
.cta-band p { opacity: .65; margin: 0; }

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 3rem;
  align-items: start;
}
.contact-cards { display: flex; flex-direction: column; gap: 1rem; }

.contact-card {
  background: var(--light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem;
  display: flex;
  gap: 1rem;
  transition: all var(--transition);
}
.contact-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--blue);
}

.contact-form {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  background: #fff;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group { margin-bottom: 1rem; }
.form-group.full { grid-column: 1 / -1; }

.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: .4rem;
  color: var(--ink);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: .92rem;
  font-family: inherit;
  transition: all var(--transition);
  background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0,114,188,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-note {
  text-align: center;
  margin-top: 1rem;
  font-size: .85rem;
  color: var(--muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,.6);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 3rem;
}
.footer h5 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}
.footer a {
  color: rgba(255,255,255,.6);
  display: inline-block;
  padding: .2rem 0;
  transition: color var(--transition);
}
.footer a:hover { color: #fff; }
.footer p { font-size: .9rem; line-height: 1.7; }

.footer-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}
.footer-brand img { height: 40px; border-radius: 6px; }
.footer-brand .brand-name { color: #fff; font-weight: 800; font-size: 1.3rem; }
.footer-brand .brand-tag { font-size: .55rem; letter-spacing: .25em; text-transform: uppercase; opacity: .5; }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin-bottom: .8rem;
  font-size: .88rem;
}
.footer-contact-item i { color: var(--teal); margin-top: .15rem; }

.social-links {
  display: flex;
  gap: .5rem;
  margin-top: 1rem;
}
.social-links a {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: all var(--transition);
}
.social-links a:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 60px;
  padding: 1.2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .83rem;
}

/* ============================================
   WHATSAPP FLOAT
   ============================================ */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1000;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 6px 20px rgba(37,211,102,.4);
  transition: all var(--transition);
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 30px rgba(37,211,102,.5);
  color: #fff;
}
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,.3);
  animation: wa-pulse 2s infinite;
}
@keyframes wa-pulse {
  0% { transform: scale(1); opacity: .7; }
  100% { transform: scale(1.4); opacity: 0; }
}

.wa-tooltip {
  position: absolute;
  right: 72px;
  background: #fff;
  color: var(--ink);
  padding: .45rem .85rem;
  border-radius: 8px;
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.whatsapp-float:hover .wa-tooltip { opacity: 1; }

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 96px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--blue);
  transform: translateY(-3px);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all .7s cubic-bezier(.4,0,.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all .7s cubic-bezier(.4,0,.2,1);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all .7s cubic-bezier(.4,0,.2,1);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .about-grid,
  .knowledge-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .about-img {
    max-height: 420px;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-banner {
    height: 260px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .topbar { display: none; }

  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--line);
  }
  .nav-links.open a {
    padding: .75rem 1rem;
    border-radius: 8px;
  }
  .nav-cta.open {
    display: block;
    position: absolute;
    top: calc(100% + 220px);
    left: 0;
    right: 0;
    background: #fff;
    padding: 0 1rem 1rem;
    box-shadow: var(--shadow-lg);
  }
  .nav-toggle { display: flex; }

  .about-img {
    max-height: 340px;
  }

  .features-grid,
  .supply-grid {
    grid-template-columns: 1fr;
  }
  .brand-row {
    grid-template-columns: 1fr;
  }
  .brand-row-reverse {
    direction: ltr;
  }
  .brand-row-img {
    min-height: 240px;
  }
  .brand-row:not(.visible) .brand-row-img,
  .brand-row-reverse:not(.visible) .brand-row-img {
    transform: translateY(30px);
  }
  .brand-row:not(.visible) .brand-row-content,
  .brand-row-reverse:not(.visible) .brand-row-content {
    transform: translateY(30px);
  }
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
  .services-banner {
    height: 200px;
  }
  .services-banner-overlay h3 {
    font-size: 1.2rem;
  }
  .stats-band .container {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .about-text .check-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .section { padding: 60px 0; }

  .video-hero {
    min-height: 500px;
  }

  .cta-band .container {
    flex-direction: column;
    text-align: center;
  }

  .contact-form { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .video-hero-content h1 { font-size: 1.8rem; }
  .video-hero-pills { gap: .8rem; }
  .stat-item .stat-num { font-size: 2rem; }
  .about-img {
    max-height: 280px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .services-banner {
    height: 180px;
  }
  .brand-row-content {
    padding: 1.5rem;
  }
  .brand-row-title {
    font-size: 1.5rem;
  }
  .brand-row-img {
    min-height: 200px;
  }
}