/* 1. Design Tokens & Root Variables */
:root {
  /* Colors */
  --bg-primary: #04060a;
  --bg-secondary: #080d16;
  --bg-tertiary: #111b2c;
  --accent-color: #00f3ff;
  --accent-color-hover: #00c4d1;
  --accent-glow: rgba(0, 243, 255, 0.25);
  --text-primary: #f0f4f8;
  --text-secondary: #8ca3bc;
  --text-muted: #627b97;
  --border-color: rgba(0, 243, 255, 0.15);
  --border-accent: rgba(0, 243, 255, 0.4);

  /* Fonts */
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;

  /* Layout Constants */
  --container-width: 1200px;
  --header-height: 80px;

  /* Scroll Variable (dynamically updated by JS from 0 to 1) */
  --scroll-pct: 0;

  /* Animating Logo Destination Settings */
  --logo-target-x: 70px;
  --logo-target-y: 40px;
  --logo-target-scale: 0.3;
  --logo-base-size: 160px;
}

@media (max-width: 768px) {
  :root {
    --logo-target-x: 50px;
    --logo-target-y: 40px;
    --logo-target-scale: 0.40;
    --logo-base-size: 120px;
    --header-height: 70px;
  }
}

/* 2. Reset & Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 3. Typography & Section Headers */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: none;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.section-divider {
  display: none;
}

/* 4. Styled Placeholders (No Images Mode) */
.accent-placeholder-box {
  position: relative;
  background-color: var(--bg-secondary);
  border: 2px dashed var(--border-accent);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: inset 0 0 20px rgba(0, 243, 255, 0.05);
}

.placeholder-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  background-image:
    repeating-linear-gradient(45deg, var(--accent-color) 0px, var(--accent-color) 1px, transparent 1px, transparent 12px),
    repeating-linear-gradient(-45deg, var(--accent-color) 0px, var(--accent-color) 1px, transparent 1px, transparent 12px);
  pointer-events: none;
}

.placeholder-info {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.placeholder-icon {
  width: 48px;
  height: 48px;
  fill: var(--accent-color);
  opacity: 0.6;
}

.placeholder-label {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-color);
}

.placeholder-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

.accent-placeholder-box:hover {
  border-color: var(--accent-color);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 20px rgba(0, 243, 255, 0.1);
  transform: translateY(-2px);
}

/* Placeholder sizes */
.large-placeholder {
  min-height: 380px;
  width: 100%;
}

.product-placeholder {
  height: 240px;
  width: 100%;
  border-radius: 8px 8px 0 0;
}

/*5. Animating Logo & Header */
.animating-logo-container {
  position: fixed;
  z-index: 1009;
  pointer-events: none;
  transform-origin: top left;
  will-change: transform;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo-image-placeholder {
  max-width: 180%;
  max-height: 180%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
  background-color: transparent;
  border: 2px solid var(--accent-color);
  padding: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  pointer-events: auto;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.logo-tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(calc(10px / var(--logo-target-scale)));
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: calc(6px / var(--logo-target-scale)) calc(12px / var(--logo-target-scale));
  border-radius: calc(4px / var(--logo-target-scale));
  font-family: var(--font-display);
  font-size: calc(12px / var(--logo-target-scale));
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: calc(1.5px / var(--logo-target-scale)) solid var(--accent-color);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;
  box-shadow: 0 calc(4px / var(--logo-target-scale)) calc(15px / var(--logo-target-scale)) rgba(0, 0, 0, 0.5), 
              0 0 calc(10px / var(--logo-target-scale)) var(--accent-glow);
  z-index: 100;
  margin-top: calc(10px / var(--logo-target-scale));
}

.logo-tooltip::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: calc(6px / var(--logo-target-scale));
  border-style: solid;
  border-color: transparent transparent var(--accent-color) transparent;
}

body.is-scrolled .logo-image-placeholder:hover + .logo-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

@media (hover: none) {
  .logo-tooltip {
    display: none !important;
  }
}

/* Header Container */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  pointer-events: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0);
  background: rgba(10, 11, 13, 0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition:
    background 0.5s ease,
    backdrop-filter 0.5s ease,
    border-color 0.5s ease;
}

body.is-scrolled .main-header {
  pointer-events: auto;
  border-color: var(--border-color);
  background: rgba(10, 11, 13, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Empty box matching final logo size to leave space in nav layout */
.header-logo-target {
  width: calc(var(--logo-base-size) * var(--logo-target-scale));
  height: calc(var(--logo-base-size) * var(--logo-target-scale));
  flex-shrink: 0;
}

/* Header Navigation Links */
.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  opacity: calc(var(--scroll-pct));
  transform: translateY(calc(-15px * (1 - var(--scroll-pct))));
  transition: opacity 0.4s ease, transform 0.4s ease;
}

body.is-scrolled .header-nav {
  opacity: 1;
  transform: translateY(0);
}

.nav-link {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.3s ease;
  position: relative;
  padding: 8px 0;
}

.nav-link:hover {
  color: var(--text-primary);
}

/* Text underline expand hover effect */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

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

/*6. Buttons Style System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 14px 28px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  gap: 8px;
}

.btn-solid {
  background-color: var(--accent-color);
  color: #000;
  font-weight: 700;
}

.btn-solid:hover {
  background-color: var(--accent-color-hover);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1.5px solid var(--text-secondary);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.15);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: transparent;
  border: 1.5px solid var(--accent-color);
  color: var(--accent-color);
  padding: 8px 18px !important;
  font-size: 14px;
}

.btn-accent:hover {
  background-color: var(--accent-color);
  color: #000;
  font-weight: 700;
  box-shadow: 0 0 15px var(--accent-glow);
}

.btn-accent::after {
  display: none !important;
}

.btn-full {
  width: 100%;
}

.btn-arrow-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.btn:hover .btn-arrow-icon {
  transform: translateX(4px);
}

/* 7. Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background-color: var(--bg-primary);
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(10, 11, 13, 0.8), rgba(10, 11, 13, 0.95)),
    radial-gradient(circle at 50% 50%, rgba(0, 243, 255, 0.08) 0%, transparent 60%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.01) 0px, rgba(255, 255, 255, 0.01) 1px, transparent 1px, transparent 30px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.01) 0px, rgba(255, 255, 255, 0.01) 1px, transparent 1px, transparent 30px);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 5;
  width: 100%;
  max-width: 800px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo-space {
  width: var(--logo-base-size);
  height: var(--logo-base-size);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(28px, 8vw, 84px);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  line-height: 1;
  text-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
  will-change: opacity, transform;

  opacity: calc(1 - var(--scroll-pct) * 1.5);
  transform: translateY(calc(var(--scroll-pct) * -40px));
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(14px, 2.5vw, 18px);
  font-weight: 600;
  color: var(--accent-color);
  letter-spacing: 0.35em;
  margin-top: 10px;
  margin-bottom: 20px;
  text-transform: uppercase;
  will-change: opacity, transform;

  opacity: calc(1 - var(--scroll-pct) * 1.8);
  transform: translateY(calc(var(--scroll-pct) * -30px));
}

.hero-tagline {
  font-size: clamp(15px, 2vw, 18px);
  font-family: var(--font-display);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  will-change: opacity, transform;

  opacity: calc(1 - var(--scroll-pct) * 2);
  transform: translateY(calc(var(--scroll-pct) * -20px));
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  will-change: opacity, transform;

  opacity: calc(1 - var(--scroll-pct) * 2.2);
  transform: translateY(calc(var(--scroll-pct) * -15px));
}

@media (max-width: 576px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
  }
}

@keyframes scroll-wheel {
  0% {
    top: 6px;
    opacity: 1;
  }

  50% {
    top: 15px;
    opacity: 0.3;
  }

  100% {
    top: 6px;
    opacity: 1;
  }
}

/*8. About Section */
.about-section {
  padding: 120px 0;
  background-color: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.about-text h3 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 16px;
}

.stats-row {
  display: flex;
  gap: 30px;
  margin-top: 40px;
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
}

@media (max-width: 576px) {
  .stats-row {
    flex-wrap: wrap;
    gap: 20px;
  }
}

.stat-item {
  flex: 1;
  min-width: 120px;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 800;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* 9. Products & Portfolio Section */
.portfolio-section {
  padding: 120px 0;
  background-color: var(--bg-primary);
}

/* Custom Tabs styling */
.portfolio-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
}

@media (max-width: 576px) {
  .portfolio-tabs {
    flex-direction: column;
    align-items: stretch;
    padding: 0 20px;
  }
}

.tab-btn {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 12px 24px;
  border: 1.5px solid var(--border-color);
  border-radius: 30px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  text-align: center;
}

.tab-btn:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.tab-btn.active {
  border-color: var(--accent-color);
  background-color: var(--accent-color);
  color: #000;
  font-weight: 700;
  box-shadow: 0 0 15px var(--accent-glow);
}

/* Carousel wrapper to position arrows */
.portfolio-carousel-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}

.portfolio-carousel {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  /* Hide standard Firefox scrollbar */
  padding: 20px 4px;
  /* Give room for card hover translateY */
  width: 100%;
}

.portfolio-carousel::-webkit-scrollbar {
  display: none;
  /* Hide Chrome/Safari scrollbar */
}

.product-card {
  flex: 0 0 380px;
  /* Fixed width of the cards */
  scroll-snap-align: start;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.4s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  height: auto;
}

@media (max-width: 768px) {
  .product-card {
    flex: 0 0 310px;
    /* Slightly narrower cards on smaller screens */
  }
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-color);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent-glow);
}

.product-card.hidden {
  display: none !important;
}

.product-visual {
  width: 100%;
  height: 270px;
  /* Fixed height for image area */
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.product-visual img {
  width: 100%;
  height: 100%;
}

.product-info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-category {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-color);
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}

.product-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
}

/* Glassmorphic Carousel Buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(30, 30, 35, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.carousel-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.carousel-btn:hover {
  background: rgba(30, 30, 35, 0.85);
  border-color: var(--accent-color);
  color: var(--accent-color);
  box-shadow: 0 0 15px var(--accent-glow);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.carousel-btn.prev-btn {
  left: -25px;
}

.carousel-btn.next-btn {
  right: -25px;
}

.carousel-btn.prev-btn:hover svg {
  transform: translateX(-2px);
}

.carousel-btn.next-btn:hover svg {
  transform: translateX(2px);
}

/* Hide scroll buttons on touch screens where swipe is native */
@media (pointer: coarse), (max-width: 768px) {
  .carousel-btn {
    display: none;
  }
}

/*10. Infrastructure Section */
.infrastructure-section {
  padding: 120px 0;
  background-color: var(--bg-secondary);
  position: relative;
}

.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 30px;
}

.infra-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 40px 30px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.infra-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 15px var(--accent-glow);
}

.infra-icon {
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.infra-card:hover .infra-icon {
  transform: scale(1.1);
}

.infra-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.infra-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 11. Contact Section */
.contact-section {
  padding: 120px 0;
  background-color: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

.contact-info h3 {
  font-size: 32px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.contact-info>p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 40px;
}

.info-details {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.info-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.info-icon {
  width: 44px;
  height: 44px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.3s ease;
}

.info-item:hover .info-icon {
  border-color: var(--accent-color);
}

.info-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--accent-color);
}

.info-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.info-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-form-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 40px;
}

@media (max-width: 576px) {
  .contact-form-container {
    padding: 24px;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 576px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.15);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2300f3ff'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 24px;
  padding-right: 40px;
}

.form-group select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.form-feedback {
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

.form-feedback.success {
  opacity: 1;
  transform: translateY(0);
  color: #10b981;
  /* green */
}

.form-feedback.error {
  opacity: 1;
  transform: translateY(0);
  color: #ef4444;
  /* red */
}

/* 12. Footer Section */
.main-footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 13px;
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

.footer-msme {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-color);
}

/* 13. Responsive Mobile Menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 1005;
}

.mobile-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
    pointer-events: auto;
  }

  body.menu-open .main-header {
    pointer-events: auto;
    background: var(--bg-primary) !important;
    z-index: 1015;
  }

  .header-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: auto;
    background-color: rgba(37, 36, 34, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding: 30px 24px;
    z-index: 1020;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);

    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.35s ease;
  }

  body.is-scrolled .header-nav {
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
  }

  body.menu-open .header-nav,
  body.menu-open.is-scrolled .header-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  body.menu-open .mobile-toggle .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  body.menu-open .mobile-toggle .bar:nth-child(2) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* 14. Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 30px;
  right: 30px;
  background-color: #25D366;
  color: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  z-index: 1000;
  transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: translateY(-5px) scale(1.05);
  background-color: #20BA5A;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}

.whatsapp-float:active {
  transform: scale(0.95);
}

.whatsapp-icon {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

@media (max-width: 576px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
  }

  .whatsapp-icon {
    width: 26px;
    height: 26px;
  }
}

/* =====================================================
   Lightbox Modal
   ===================================================== */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
}

.lightbox-overlay.active .lightbox-content {
  transform: scale(1) translateY(0);
}

.lightbox-img {
  width: 100%;
  max-height: 65vh;
  object-fit: contain;
  background: var(--bg-primary);
  display: block;
}

.lightbox-info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border-color);
}

.lightbox-category {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-color);
}

.lightbox-title {
  font-family: var(--font-display);
  font-size: clamp(16px, 2.5vw, 22px);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.lightbox-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 10;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.lightbox-close:hover {
  background: var(--accent-color);
  transform: scale(1.1);
}

/* Make product images show a click cursor */
.product-visual {
  cursor: zoom-in;
}