/* ============================================
   sat2Tani — Main Stylesheet
   Brand: Satellite + Agriculture + Technology
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #1B5E8C;
  --color-primary-dark: #0D3B66;
  --color-primary-light: #2E7DB5;
  --color-secondary: #2E7D32;
  --color-secondary-light: #43A047;
  --color-secondary-bright: #66BB6A;
  --color-accent: #00897B;

  --color-text: #1A2332;
  --color-text-light: #5A6578;
  --color-text-muted: #8892A4;
  --color-white: #FFFFFF;
  --color-off-white: #F8FAFB;
  --color-light-gray: #EEF2F6;
  --color-border: #DDE3EA;

  --gradient-primary: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-secondary) 100%);
  --gradient-hero: linear-gradient(160deg, #0D3B66 0%, #1B5E8C 40%, #1B6B4A 100%);
  --gradient-card: linear-gradient(145deg, rgba(27, 94, 140, 0.05) 0%, rgba(46, 125, 50, 0.05) 100%);
  --gradient-text: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary-light) 100%);

  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  --shadow-sm: 0 2px 8px rgba(13, 59, 102, 0.08);
  --shadow-md: 0 4px 20px rgba(13, 59, 102, 0.12);
  --shadow-lg: 0 8px 40px rgba(13, 59, 102, 0.16);
  --shadow-xl: 0 16px 60px rgba(13, 59, 102, 0.2);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --header-height: 80px;
  --container-max: 1200px;
  --section-padding: 100px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

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

.section {
  padding: var(--section-padding) 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(27, 94, 140, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 94, 140, 0.4);
}

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

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

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

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

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-white);
}

.btn--lg {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

/* --- Section Headers --- */
.section__label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.section__label--light {
  color: var(--color-secondary-bright);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

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

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.nav__toggle span {
  background: var(--color-text);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.header.scrolled .nav__logo-img,
.nav__logo-img {
  height: 42px;
  width: auto;
  transition: height var(--transition);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --- Language Toggle --- */
.lang-toggle {
  display: flex;
  align-items: center;
  background: var(--color-light-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.lang-toggle__btn {
  padding: 6px 12px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-light);
  border-radius: var(--radius-full);
  transition: all var(--transition);
  letter-spacing: 0.5px;
}

.lang-toggle__btn:hover {
  color: var(--color-primary);
}

.lang-toggle__btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav__link {
  padding: 8px 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

/* --- Nav Dropdown --- */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
  color: var(--color-text);
}

.nav__dropdown-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.nav__dropdown.open .nav__dropdown-icon,
.nav__dropdown:hover .nav__dropdown-icon {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  z-index: 100;
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown.open .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: 10px 14px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav__dropdown-link:hover {
  background: rgba(27, 94, 140, 0.08);
  color: var(--color-primary);
}

.nav__dropdown-toggle.active,
.nav__dropdown.open .nav__dropdown-toggle {
  color: var(--color-primary);
  background: rgba(27, 94, 140, 0.08);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
  background: rgba(27, 94, 140, 0.08);
}

.nav__cta {
  padding: 10px 24px;
  font-size: var(--font-size-sm);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-white);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: var(--color-white);
}

.hero__overlay {
  display: none;
}

.hero__particles {
  display: none;
}

.hero__container {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-top: var(--header-height);
}

.hero__logo {
  width: 180px;
  margin: 0 auto 24px;
  filter: drop-shadow(0 4px 16px rgba(13, 59, 102, 0.12));
  animation: float-logo 4s ease-in-out infinite;
}

@keyframes float-logo {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -1px;
}

.hero__title-sat {
  background: linear-gradient(180deg, #0D3B66 0%, #1B5E8C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title-tani {
  background: linear-gradient(180deg, #2E7D32 0%, #43A047 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__tagline {
  font-size: var(--font-size-xl);
  font-style: italic;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.hero__tagline::before,
.hero__tagline::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40px;
  height: 1px;
  background: var(--color-border);
}

.hero__tagline::before { right: calc(100% + 16px); }
.hero__tagline::after { left: calc(100% + 16px); }

.hero__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero .btn--outline {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.hero .btn--outline:hover {
  background: rgba(27, 94, 140, 0.08);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat-num {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.hero__stat-suffix {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-secondary);
}

.hero__stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: 4px;
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  animation: bounce 2s infinite;
  z-index: 2;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- About Section --- */
.about {
  background: var(--color-off-white);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.about__image-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.about__badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

.about__badge svg {
  width: 20px;
  height: 20px;
  color: var(--color-secondary);
}

.about__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

.about__benefits {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.about__benefit {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
  color: var(--color-text);
}

.about__benefit-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 125, 50, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}

.about__benefit-icon svg {
  width: 18px;
  height: 18px;
  color: var(--color-secondary);
}

/* --- Products Section --- */
.products {
  background: var(--color-off-white);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.product-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.product-card__icon svg {
  width: 32px;
  height: 32px;
}

.product-card__icon--primary { background: rgba(27, 94, 140, 0.1); color: var(--color-primary); }
.product-card__icon--green { background: rgba(46, 125, 50, 0.1); color: var(--color-secondary); }
.product-card__icon--blue { background: rgba(25, 118, 210, 0.1); color: #1976D2; }
.product-card__icon--leaf { background: rgba(102, 187, 106, 0.15); color: var(--color-secondary-light); }
.product-card__icon--teal { background: rgba(0, 137, 123, 0.1); color: var(--color-accent); }

.product-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.product-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-card__link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition);
}

.product-card__link:hover {
  color: var(--color-secondary);
}

.products__grid .product-card:nth-child(4),
.products__grid .product-card:nth-child(5) {
  grid-column: span 1;
}

@media (min-width: 1025px) {
  .products__grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .products__grid .product-card:nth-child(1),
  .products__grid .product-card:nth-child(2),
  .products__grid .product-card:nth-child(3) {
    grid-column: span 2;
  }
  .products__grid .product-card:nth-child(4) {
    grid-column: 1 / span 3;
  }
  .products__grid .product-card:nth-child(5) {
    grid-column: 4 / span 3;
  }
}

/* --- Industries Section --- */
.industries {
  background: var(--color-white);
}

.industries__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.industry-card {
  padding: 32px 28px;
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.industry-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.industry-card__num {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  line-height: 1;
}

.industry-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.industry-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

.industries__grid .industry-card:nth-child(4),
.industries__grid .industry-card:nth-child(5) {
  grid-column: span 1;
}

@media (min-width: 1025px) {
  .industries__grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .industries__grid .industry-card:nth-child(1),
  .industries__grid .industry-card:nth-child(2),
  .industries__grid .industry-card:nth-child(3) {
    grid-column: span 2;
  }
  .industries__grid .industry-card:nth-child(4) {
    grid-column: 1 / span 3;
  }
  .industries__grid .industry-card:nth-child(5) {
    grid-column: 4 / span 3;
  }
}

/* --- Value Bar --- */
.value-bar {
  background: var(--color-white);
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.value-bar__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.value-bar__item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 32px;
}

.value-bar__icon {
  width: 48px;
  height: 48px;
  color: var(--color-secondary);
  flex-shrink: 0;
}

.value-bar__icon svg {
  width: 100%;
  height: 100%;
}

.value-bar__item h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.3;
}

.value-bar__item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.value-bar__divider {
  width: 1px;
  height: 48px;
  background: var(--color-border);
}

/* --- Features Section --- */
.features {
  background: var(--color-white);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card__icon svg {
  width: 32px;
  height: 32px;
}

.feature-card__icon--soil { background: rgba(121, 85, 72, 0.1); color: #795548; }
.feature-card__icon--pest { background: rgba(211, 47, 47, 0.1); color: #D32F2F; }
.feature-card__icon--weather { background: rgba(25, 118, 210, 0.1); color: #1976D2; }
.feature-card__icon--calendar { background: rgba(123, 31, 162, 0.1); color: #7B1FA2; }
.feature-card__icon--irrigation { background: rgba(0, 137, 123, 0.1); color: #00897B; }
.feature-card__icon--moisture { background: rgba(2, 119, 189, 0.1); color: #0277BD; }
.feature-card__icon--image { background: rgba(245, 124, 0, 0.1); color: #F57C00; }
.feature-card__icon--lswi { background: rgba(56, 142, 60, 0.1); color: #388E3C; }
.feature-card__icon--health { background: rgba(46, 125, 50, 0.1); color: #2E7D32; }

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.feature-card__subtitle {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.feature-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Gallery Section --- */
.gallery {
  background: var(--color-off-white);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 220px);
  gap: 16px;
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
}

.gallery__item--large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery__item:hover img {
  transform: scale(1.08);
}

.gallery__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 59, 102, 0.8) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery__item:hover .gallery__overlay {
  opacity: 1;
}

.gallery__overlay span {
  color: var(--color-white);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.gallery__whatsapp {
  margin-top: 40px;
  display: flex;
  justify-content: center;
}

.whatsapp-join {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.25);
  transition: all var(--transition);
  max-width: 560px;
  width: 100%;
}

.whatsapp-join:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.35);
  color: var(--color-white);
}

.whatsapp-join svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.whatsapp-join strong {
  display: block;
  font-size: var(--font-size-lg);
  margin-bottom: 4px;
}

.whatsapp-join span {
  display: block;
  font-size: var(--font-size-sm);
  opacity: 0.9;
  line-height: 1.5;
}

/* --- Floating WhatsApp Button --- */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  left: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px 12px 14px;
  background: #25D366;
  color: var(--color-white);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 998;
  transition: all var(--transition);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.whatsapp-float__label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
}

.whatsapp-float:hover {
  background: #1fb855;
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
  color: var(--color-white);
}

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

  .whatsapp-float {
    padding: 14px;
    bottom: 24px;
    left: 24px;
  }
}

/* --- Download Section --- */
.download {
  background: var(--gradient-hero);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.download::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(102, 187, 106, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.download__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.download__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.download__desc {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px;
  line-height: 1.8;
}

.download__buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.download__store {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  transition: all var(--transition);
  color: var(--color-white);
}

.download__store:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.download__store svg {
  width: 28px;
  height: 28px;
}

.download__store small {
  display: block;
  font-size: var(--font-size-xs);
  opacity: 0.8;
}

.download__store strong {
  font-size: var(--font-size-base);
}

.download__phone {
  display: flex;
  justify-content: center;
}

.download__phone-screen {
  width: 260px;
  height: 480px;
  background: var(--color-white);
  border-radius: 32px;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-xl);
  border: 4px solid rgba(255, 255, 255, 0.2);
  position: relative;
}

.download__phone-screen::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 6px;
  background: var(--color-light-gray);
  border-radius: 3px;
}

.download__phone-logo {
  width: 120px;
  margin-bottom: 20px;
}

.download__phone-screen p {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-dark);
  line-height: 1.5;
}

/* --- Testimonials Section --- */
.testimonials {
  background: var(--color-white);
}

.testimonials__slider {
  position: relative;
  overflow: hidden;
}

.testimonials__track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
  flex: 0 0 calc(50% - 12px);
  background: var(--color-off-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.testimonial-card__stars {
  color: #FFB300;
  font-size: var(--font-size-lg);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-card__text {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.testimonial-card__author span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.testimonials__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 36px;
}

.testimonials__btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: all var(--transition);
}

.testimonials__btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.testimonials__btn svg {
  width: 20px;
  height: 20px;
}

.testimonials__dots {
  display: flex;
  gap: 8px;
}

.testimonials__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
}

.testimonials__dot.active {
  background: var(--color-primary);
  width: 28px;
  border-radius: 5px;
}

/* --- How To Use Section --- */
.how-to {
  background: var(--color-off-white);
}

.how-to__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.how-to__video-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16/9;
}

.how-to__video-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.how-to__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
}

.how-to__play:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--color-white);
}

.how-to__play svg {
  width: 32px;
  height: 32px;
  margin-left: 4px;
}

.how-to__video-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 59, 102, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--color-white);
  text-align: center;
  padding: 24px;
}

.how-to__video-overlay svg {
  width: 48px;
  height: 48px;
  opacity: 0.6;
}

.how-to__video-overlay p {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.how-to__steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.how-to__step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.how-to__step-num {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  line-height: 1;
}

.how-to__step h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.how-to__step p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

.how-to__languages {
  margin-top: 48px;
  text-align: center;
}

.how-to__languages > span {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.how-to__lang-tags {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.how-to__lang-tag {
  padding: 8px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
  cursor: pointer;
}

.how-to__lang-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(27, 94, 140, 0.05);
}

/* --- Contact Section --- */
.contact {
  background: var(--color-white);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.contact__card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.contact__card-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27, 94, 140, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

.contact__card-icon svg {
  width: 22px;
  height: 22px;
}

.contact__card h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact__card a,
.contact__card p {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
}

.contact__card a:hover {
  color: var(--color-primary);
}

.contact__form {
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.contact__field {
  margin-bottom: 20px;
}

.contact__field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.contact__field input,
.contact__field textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.contact__field input:focus,
.contact__field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 140, 0.12);
}

.contact__submit {
  width: 100%;
  margin-top: 8px;
}

.contact__form--success .contact__submit {
  background: var(--color-secondary);
}

/* --- CTA Section --- */
.cta {
  padding: 80px 0;
}

.cta__box {
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.cta__box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
}

.cta__desc {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 36px;
  position: relative;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
  height: 60px;
  margin-bottom: 12px;
  filter: brightness(1.1);
}

.footer__tagline {
  font-style: italic;
  font-size: var(--font-size-sm);
  color: var(--color-secondary-bright);
  margin-bottom: 16px;
}

.footer__desc {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.footer__links h4,
.footer__contact h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer__links ul li {
  margin-bottom: 10px;
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-secondary-bright);
}

.footer__contact ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--font-size-sm);
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer__contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-secondary-bright);
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition);
}

.footer__social a:hover {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__bottom-links {
  display: flex;
  gap: 24px;
}

.footer__bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

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

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
    --font-size-5xl: 2.75rem;
    --font-size-3xl: 1.75rem;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .products__grid,
  .industries__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .products__grid .product-card,
  .industries__grid .industry-card {
    grid-column: span 1 !important;
  }

  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }

  .gallery__item--large {
    grid-column: span 2;
    grid-row: span 1;
    height: 280px;
  }

  .gallery__item {
    height: 200px;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .testimonial-card {
    flex: 0 0 100%;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
    --font-size-5xl: 2.25rem;
    --font-size-3xl: 1.5rem;
    --header-height: 70px;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 32px 32px;
    gap: 24px;
    box-shadow: var(--shadow-xl);
    transition: right var(--transition);
  }

  .nav__actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }

  .lang-toggle {
    align-self: flex-start;
    background: var(--color-light-gray);
    border-color: var(--color-border);
  }

  .lang-toggle__btn {
    color: var(--color-text-light);
  }

  .lang-toggle__btn.active {
    background: var(--color-primary);
    color: var(--color-white);
  }

  .nav__cta {
    text-align: center;
    width: 100%;
  }

  .nav__menu.open {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 4px;
  }

  .nav__link {
    color: var(--color-text);
    width: 100%;
    padding: 12px 16px;
  }

  .nav__dropdown {
    width: 100%;
  }

  .nav__dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    color: var(--color-text);
  }

  .nav__dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 12px;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  .nav__dropdown.open .nav__dropdown-menu {
    max-height: 400px;
    margin-top: 4px;
  }

  .nav__dropdown-link {
    color: var(--color-text-light);
    padding: 10px 16px;
  }

  .nav__dropdown-link:hover,
  .nav__dropdown-link.active {
    color: var(--color-primary);
    background: rgba(27, 94, 140, 0.06);
  }

  .nav__toggle {
    display: flex;
    z-index: 1001;
  }

  .header.scrolled .nav__toggle span,
  .nav__toggle span {
    background: var(--color-text);
  }

  .about__grid,
  .download__grid,
  .how-to__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__image-wrapper img {
    height: 350px;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .products__grid,
  .industries__grid {
    grid-template-columns: 1fr;
  }

  .value-bar__divider {
    display: none;
  }

  .value-bar__item {
    width: 50%;
    justify-content: center;
  }

  .hero__stats {
    gap: 32px;
  }

  .hero__tagline::before,
  .hero__tagline::after {
    display: none;
  }

  .gallery__grid {
    grid-template-columns: 1fr;
  }

  .gallery__item--large {
    grid-column: span 1;
    height: 250px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cta__box {
    padding: 48px 24px;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__logo {
    width: 140px;
  }

  .value-bar__item {
    width: 100%;
  }

  .download__buttons {
    flex-direction: column;
  }

  .download__store {
    justify-content: center;
  }
}