/* ==========================================================================
   DESIGN SYSTEM & VARIABLES - KN TRADERS
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --color-primary-teal: #0d9488;       /* Tech Teal */
  --color-primary-teal-glow: rgba(13, 148, 136, 0.15);
  --color-primary-teal-light: #14b8a6;
  --color-primary-blue: #1e3a8a;       /* Deep Industrial Blue */
  --color-primary-blue-light: #2563eb;
  --color-dark-grey: #0f172a;          /* Slate 900 */
  --color-dark-card: #1e293b;          /* Slate 800 */
  --color-light-grey: #f8fafc;         /* Slate 50 */
  --color-light-border: #e2e8f0;       /* Slate 200 */
  --color-dark-border: rgba(255, 255, 255, 0.08);
  --color-text-dark: #0f172a;
  --color-text-muted-dark: #475569;
  --color-text-light: #f8fafc;
  --color-text-muted-light: #94a3b8;
  --color-white: #ffffff;
  
  /* Fonts */
  --font-body: 'Outfit', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  
  /* Layout */
  --header-height: 80px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
  --shadow-teal: 0 8px 30px rgba(13, 148, 136, 0.3);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-light-grey);
  color: var(--color-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
  position: relative;
  overflow: hidden;
}

.section-dark {
  background-color: var(--color-dark-grey);
  color: var(--color-text-light);
}

.section-light {
  background-color: var(--color-white);
  color: var(--color-text-dark);
}

.section-alt {
  background-color: var(--color-light-grey);
  color: var(--color-text-dark);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary-teal);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
  letter-spacing: -0.5px;
}

.section-header.light-text .section-title {
  color: var(--color-white);
}

.section-header.dark-text .section-title {
  color: var(--color-text-dark);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted-dark);
}

.section-dark .section-subtitle {
  color: var(--color-text-muted-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background-color: var(--color-primary-teal);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.25);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-primary-teal-light);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-primary:hover {
  box-shadow: var(--shadow-teal);
  transform: translateY(-2px);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-dark-grey);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-dark {
  background-color: var(--color-dark-grey);
  color: var(--color-white);
  border: 1px solid var(--color-dark-grey);
}

.btn-dark:hover {
  background-color: transparent;
  color: var(--color-dark-grey);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25d366;
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.25);
}

.btn-whatsapp:hover {
  background-color: #20ba5a;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

/* Animations Trigger Utilities */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Transparent Header (default over dark hero slider) */
header.transparent {
  background-color: transparent;
  backdrop-filter: blur(10px);
}

header.transparent .nav-link {
  color: var(--color-white);
}

header.transparent .logo-text {
  color: var(--color-white);
}

header.transparent .mobile-toggle span {
  background-color: var(--color-white);
}

/* Scrolled solid white header */
header.scrolled {
  background-color: var(--color-white);
  height: 70px;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-light-border);
}

header.scrolled .nav-link {
  color: var(--color-text-dark);
}

header.scrolled .logo-text {
  color: var(--color-text-dark);
}

header.scrolled .nav-link.active {
  color: var(--color-primary-teal);
}

header.scrolled .mobile-toggle span {
  background-color: var(--color-text-dark);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary-teal), var(--color-primary-blue));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-white);
  font-size: 1.3rem;
  box-shadow: var(--shadow-sm);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  transition: var(--transition-fast);
}

.logo-text span {
  color: var(--color-primary-teal);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-teal);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--color-primary-teal);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  z-index: 101;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* Responsive navigation adjustments */
@media (max-width: 1024px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 8rem 3rem 3rem 3rem;
    gap: 2rem;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition-smooth);
    z-index: 100;
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-link {
    color: var(--color-text-dark) !important;
    font-size: 1.1rem;
    width: 100%;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .mobile-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--color-text-dark) !important;
  }
  
  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--color-text-dark) !important;
  }
  
  .nav-actions {
    margin-right: 2rem;
  }
}

@media (max-width: 576px) {
  .nav-actions {
    display: none;
  }
}

/* ==========================================================================
   HERO SECTION (FULL SCREEN SLIDER)
   ========================================================================== */
.hero-slider {
  height: 100vh;
  position: relative;
  overflow: hidden;
  background-color: var(--color-dark-grey);
}

.slider-container {
  height: 100%;
  width: 300%;
  display: flex;
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.slide {
  width: 33.3333%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: var(--color-white);
  padding-top: var(--header-height);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Slide backgrounds with dark overlays for high-contrast typography */
.slide::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.9) 20%, rgba(15, 23, 42, 0.5) 60%, rgba(15, 23, 42, 0.3) 100%);
  z-index: 1;
}

.slide-content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  transform: translateY(30px);
  opacity: 0;
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s, transform 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.active-slide .slide-content {
  transform: translateY(0);
  opacity: 1;
}

.slide-tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background-color: var(--color-primary-teal-glow);
  border: 1px solid var(--color-primary-teal);
  border-radius: var(--radius-sm);
  color: var(--color-primary-teal-light);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1.5rem;
}

.slide-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.slide-title span {
  color: var(--color-primary-teal-light);
  background: linear-gradient(120deg, var(--color-primary-teal-light), #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide-desc {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.slide-buttons {
  display: flex;
  gap: 1.2rem;
}

/* Float Animation for Slide 3 */
.floating-elements {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.floating-machine {
  position: absolute;
  width: 400px;
  height: 400px;
  top: 50%;
  left: 50%;
  transform: translate(-30%, -50%);
  background: radial-gradient(circle, rgba(13, 148, 136, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
  opacity: 0.9;
}

.floating-machine img {
  width: 85%;
  height: auto;
  filter: drop-shadow(0 20px 50px rgba(0,0,0,0.5));
}

.particles-glow {
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: var(--color-primary-teal);
  border-radius: 50%;
  box-shadow: 0 0 15px var(--color-primary-teal);
}

.particles-glow:nth-child(1) { top: 30%; right: 20%; animation: pulse-glow 3s infinite 0.5s; }
.particles-glow:nth-child(2) { top: 70%; right: 40%; animation: pulse-glow 4s infinite 1.2s; }
.particles-glow:nth-child(3) { top: 20%; right: 60%; animation: pulse-glow 3.5s infinite 2s; }

@keyframes float {
  0%, 100% { transform: translate(-30%, -52%); }
  50% { transform: translate(-30%, -48%); }
}

@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.8); opacity: 0.8; }
}

/* Slider Controls */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: var(--transition-smooth);
}

.slider-arrow:hover {
  background-color: var(--color-primary-teal);
  border-color: var(--color-primary-teal);
  color: var(--color-white);
  transform: translateY(-50%) scale(1.05);
}

.arrow-prev { left: 2rem; }
.arrow-next { right: 2rem; }

.slider-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.75rem;
  z-index: 10;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  transition: var(--transition-smooth);
}

.slider-dot.active {
  background-color: var(--color-primary-teal);
  width: 30px;
  border-radius: 5px;
}

@media (max-width: 768px) {
  .slide-title {
    font-size: 2.3rem;
  }
  .slide-desc {
    font-size: 1rem;
  }
  .slider-arrow {
    display: none;
  }
  .floating-elements {
    display: none;
  }
  .slide-buttons {
    flex-direction: column;
  }
}

/* ==========================================================================
   ABOUT US SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: center;
}

.about-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-primary-blue);
}

.about-content p {
  color: var(--color-text-muted-dark);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-bullets {
  margin: 2rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.about-bullet-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.about-bullet-item i {
  color: var(--color-primary-teal);
  flex-shrink: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--color-light-border);
  padding-top: 2.5rem;
  margin-top: 2.5rem;
}

.stat-item {
  text-align: left;
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary-teal);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.about-visual {
  position: relative;
}

.about-img-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-img-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.about-visual:hover .about-img-wrapper img {
  transform: scale(1.05);
}

.experience-badge {
  position: absolute;
  bottom: -2rem;
  left: -2rem;
  background: linear-gradient(135deg, var(--color-primary-blue), var(--color-dark-grey));
  color: var(--color-white);
  padding: 2.2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
  border: 1px solid rgba(255,255,255,0.08);
}

.exp-years {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary-teal-light);
}

.exp-text {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-align: center;
  margin-top: 0.5rem;
}

@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 6rem;
  }
  .about-img-wrapper img {
    height: 400px;
  }
}

@media (max-width: 576px) {
  .about-bullets {
    grid-template-columns: 1fr;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .experience-badge {
    left: 1rem;
    bottom: -1rem;
    padding: 1.5rem;
  }
}

/* ==========================================================================
   OUR BRANDS SECTION
   ========================================================================== */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.brand-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-light-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.brand-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-teal);
}

.brand-img-box {
  position: relative;
  height: 230px;
  overflow: hidden;
  background-color: #f1f5f9;
}

.brand-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.brand-card:hover .brand-img-box img {
  transform: scale(1.08);
}

.brand-logo-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--color-white);
  color: var(--color-primary-blue);
  padding: 0.4rem 1rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  letter-spacing: 0.5px;
  border: 1px solid var(--color-light-border);
}

.brand-info {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--color-text-dark);
}

.brand-desc {
  color: var(--color-text-muted-dark);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.brand-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.8rem;
}

.brand-feat-tag {
  background-color: var(--color-light-grey);
  color: var(--color-text-muted-dark);
  padding: 0.25rem 0.65rem;
  font-size: 0.8rem;
  border-radius: 4px;
  font-weight: 500;
  border: 1px solid var(--color-light-border);
}

.brand-card .btn {
  width: 100%;
  padding: 0.8rem 1.5rem;
}

@media (max-width: 1024px) {
  .brands-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .brands-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   WHY CHOOSE US SECTION
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.why-card {
  background-color: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  padding: 3rem 2.2rem;
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary-teal-glow) 0%, transparent 100%);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.why-card:hover {
  transform: translateY(-5px);
  border-color: rgba(13, 148, 136, 0.4);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.why-card:hover::before {
  opacity: 1;
}

.why-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--color-primary-teal-light);
  font-size: 1.6rem;
  transition: var(--transition-smooth);
}

.why-card:hover .why-icon {
  background-color: var(--color-primary-teal);
  border-color: var(--color-primary-teal);
  color: var(--color-white);
  box-shadow: 0 0 20px var(--color-primary-teal);
}

.why-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-white);
}

.why-desc {
  color: var(--color-text-muted-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   PRODUCT GALLERY SECTION (MASONRY & LIGHTBOX)
   ========================================================================== */
.gallery-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 4rem;
}

.filter-btn {
  padding: 0.6rem 1.4rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-light-border);
  color: var(--color-text-muted-dark);
  background-color: var(--color-white);
  transition: var(--transition-smooth);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-primary-teal);
  border-color: var(--color-primary-teal);
  color: var(--color-white);
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.2);
}

.gallery-grid {
  columns: 4 280px;
  column-gap: 1.5rem;
  margin: 0 auto;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-light-border);
  box-shadow: var(--shadow-sm);
  background-color: var(--color-white);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.2) 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 2;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-title {
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.gallery-item-cat {
  color: var(--color-primary-teal-light);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.gallery-item-zoom {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(5px);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-item-zoom {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1200px) {
  .gallery-grid {
    columns: 3;
  }
}

@media (max-width: 768px) {
  .gallery-grid {
    columns: 2;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    columns: 1;
  }
}

/* ==========================================================================
   BROCHURE DOWNLOAD SECTION
   ========================================================================== */
.brochure-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.brochure-content h2 {
  color: var(--color-white);
}

.brochure-content p {
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.brochure-actions {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.brochure-upload-box {
  background-color: rgba(255, 255, 255, 0.02);
  border: 2px dashed rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition-smooth);
}

.brochure-upload-box:hover,
.brochure-upload-box.dragover {
  border-color: var(--color-primary-teal);
  background-color: rgba(13, 148, 136, 0.05);
}

.upload-icon {
  font-size: 2.2rem;
  color: var(--color-primary-teal-light);
  margin-bottom: 1rem;
}

.upload-btn-label {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  cursor: pointer;
  margin: 0.8rem 0;
  transition: var(--transition-fast);
}

.upload-btn-label:hover {
  background-color: var(--color-primary-teal);
  border-color: var(--color-primary-teal);
}

.brochure-upload-box input {
  display: none;
}

.brochure-upload-box p {
  font-size: 0.85rem;
  color: var(--color-text-muted-light);
  margin-bottom: 0;
}

/* PDF Preview Frame */
.brochure-preview {
  position: relative;
  background-color: var(--color-dark-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-dark-border);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  height: 550px;
  display: flex;
  flex-direction: column;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-dark-border);
  margin-bottom: 1.5rem;
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-white);
}

.preview-title i {
  color: #ef4444; /* PDF Red icon */
}

.preview-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted-light);
}

.preview-viewport {
  flex-grow: 1;
  background-color: #0b0f19;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  position: relative;
}

.preview-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
  color: var(--color-text-muted-light);
}

.preview-placeholder i {
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.15);
  margin-bottom: 1.5rem;
  animation: pulse-glow 3s infinite;
}

.preview-placeholder h4 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

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

/* Digital Brochure Interactive Book Mockup */
.mock-pdf-reader {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
}

.mock-pdf-pages {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.mock-pdf-page {
  background-color: var(--color-white);
  color: var(--color-text-dark);
  width: 90%;
  height: 90%;
  padding: 2rem;
  border-radius: 4px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  display: none;
  flex-direction: column;
  animation: pageFlip 0.5s ease;
  overflow-y: auto;
}

.mock-pdf-page.active {
  display: flex;
}

.mock-pdf-page h5 {
  font-size: 1.2rem;
  color: var(--color-primary-blue);
  border-bottom: 2px solid var(--color-primary-teal);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.mock-page-content {
  font-size: 0.8rem;
  color: var(--color-text-muted-dark);
  line-height: 1.5;
}

.mock-page-content ul {
  margin: 1rem 0;
  padding-left: 1.2rem;
  list-style-type: square;
}

.mock-page-content li {
  margin-bottom: 0.4rem;
}

.mock-pdf-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.mock-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.mock-nav-btn:hover {
  background-color: var(--color-primary-teal);
}

.mock-page-num {
  font-size: 0.85rem;
  color: var(--color-text-muted-light);
}

@keyframes pageFlip {
  from { transform: rotateY(-15deg); opacity: 0.5; }
  to { transform: rotateY(0); opacity: 1; }
}

@media (max-width: 1024px) {
  .brochure-container {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .brochure-preview {
    height: 480px;
  }
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: flex-start;
}

.contact-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-light-border);
  box-shadow: var(--shadow-md);
  padding: 3.5rem;
}

.contact-card h3 {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  color: var(--color-text-dark);
}

.form-group {
  margin-bottom: 1.8rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted-dark);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-light-grey);
  border: 1px solid var(--color-light-border);
  color: var(--color-text-dark);
  font-family: inherit;
  transition: var(--transition-fast);
}

.form-control:focus {
  background-color: var(--color-white);
  border-color: var(--color-primary-teal);
  box-shadow: 0 0 0 4px var(--color-primary-teal-glow);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

.contact-card .btn {
  width: 100%;
  padding: 1rem;
}

/* Right Side: Contact Information */
.info-box {
  padding-left: 2rem;
}

.info-title {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  color: var(--color-primary-blue);
  position: relative;
}

.info-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--color-primary-teal);
}

.info-desc {
  color: var(--color-text-muted-dark);
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  margin-bottom: 4rem;
}

.info-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.info-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-primary-teal-glow);
  color: var(--color-primary-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.info-item:hover .info-icon {
  background-color: var(--color-primary-teal);
  color: var(--color-white);
  transform: scale(1.05);
}

.info-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--color-text-dark);
}

.info-text p, .info-text a {
  color: var(--color-text-muted-dark);
  font-size: 0.95rem;
  line-height: 1.5;
}

.info-text a:hover {
  color: var(--color-primary-teal);
}

/* Social Media Section in Contact */
.social-wrap {
  border-top: 1px solid var(--color-light-border);
  padding-top: 2.5rem;
}

.social-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted-dark);
  margin-bottom: 1.2rem;
  letter-spacing: 1px;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--color-light-border);
  background-color: var(--color-white);
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition-smooth);
}

.social-icon:hover {
  background-color: var(--color-primary-teal);
  border-color: var(--color-primary-teal);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.2);
}

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
  .info-box {
    padding-left: 0;
  }
  .contact-card {
    padding: 2.5rem;
  }
}

/* ==========================================================================
   FLOATING ELEMENTS (WHATSAPP BUTTON)
   ========================================================================== */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  border-radius: 50%;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 0 0 rgba(37, 211, 102, 0.5);
  z-index: 99;
  cursor: pointer;
  transition: var(--transition-smooth);
  animation: pulse-whatsapp 2s infinite;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  background-color: #20ba5a;
}

@keyframes pulse-whatsapp {
  0% {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 0 15px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

@media (max-width: 576px) {
  .floating-whatsapp {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  background-color: #0b0f19;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-dark-border);
  padding: 6rem 0 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo-desc p {
  color: var(--color-text-muted-light);
  margin-top: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-title {
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 1.8rem;
  position: relative;
  letter-spacing: 1px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-link {
  color: var(--color-text-muted-light);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link::before {
  content: '➔';
  font-size: 0.7rem;
  color: var(--color-primary-teal);
  transform: translateX(-5px);
  opacity: 0;
  transition: var(--transition-fast);
}

.footer-link:hover::before {
  transform: translateX(0);
  opacity: 1;
}

.footer-link:hover {
  color: var(--color-white);
  padding-left: 5px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer-info-item {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
  color: var(--color-text-muted-light);
}

.footer-info-item i {
  color: var(--color-primary-teal);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-dark-border);
  padding-top: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.copyright {
  font-size: 0.9rem;
  color: var(--color-text-muted-light);
}

.footer-meta-links {
  display: flex;
  gap: 2rem;
  font-size: 0.9rem;
  color: var(--color-text-muted-light);
}

.footer-meta-links a:hover {
  color: var(--color-white);
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   MODALS (LIGHTBOX & PRODUCT SPECS DETAILS)
   ========================================================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(11, 15, 25, 0.95);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.modal.active {
  display: flex;
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.05);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition-fast);
  z-index: 1002;
}

.modal-close:hover {
  background-color: var(--color-primary-teal);
  transform: rotate(90deg);
}

/* Lightbox specific styles */
.lightbox-content {
  max-width: 90%;
  max-height: 80%;
  position: relative;
  z-index: 1001;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.active .lightbox-content {
  transform: scale(1);
}

.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-dark-border);
}

.lightbox-caption {
  color: var(--color-white);
  margin-top: 1.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  font-family: var(--font-heading);
}

.lightbox-category {
  color: var(--color-primary-teal-light);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.25rem;
}

/* Product Spec Modal specific styles */
.spec-modal-card {
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow-y: auto;
  position: relative;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.active .spec-modal-card {
  transform: scale(1);
}

.spec-modal-header {
  padding: 2.5rem 2.5rem 1.5rem 2.5rem;
  border-bottom: 1px solid var(--color-light-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.spec-modal-title h3 {
  font-size: 1.8rem;
  color: var(--color-text-dark);
  margin-bottom: 0.5rem;
}

.spec-modal-brand {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary-teal);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.spec-modal-body {
  padding: 2.5rem;
  overflow-y: auto;
}

.spec-tech-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted-dark);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.spec-grid-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--color-primary-blue);
  border-left: 4px solid var(--color-primary-teal);
  padding-left: 0.75rem;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2.5rem;
}

.spec-table tr {
  border-bottom: 1px solid var(--color-light-border);
}

.spec-table tr:last-child {
  border-bottom: none;
}

.spec-table td {
  padding: 1rem 0;
  font-size: 0.95rem;
}

.spec-table td.spec-name {
  font-weight: 600;
  color: var(--color-text-dark);
  width: 40%;
}

.spec-table td.spec-val {
  color: var(--color-text-muted-dark);
}

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

.spec-feat-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-muted-dark);
}

.spec-feat-item i {
  color: var(--color-primary-teal);
  margin-top: 0.2rem;
}

@media (max-width: 768px) {
  .spec-modal-header {
    padding: 1.5rem;
  }
  .spec-modal-body {
    padding: 1.5rem;
  }
  .spec-features-list {
    grid-template-columns: 1fr;
  }
}

/* Success notification toast for forms */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  background-color: var(--color-dark-grey);
  border: 1px solid var(--color-primary-teal);
  color: var(--color-white);
  padding: 1.2rem 2rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-smooth);
}

.toast-notification.active {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  color: var(--color-primary-teal-light);
  font-size: 1.4rem;
}