/**
 * Swine Tech - Main Stylesheet
 * Organized with CSS Custom Properties and Mobile-First Approach
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Variables)
   ============================================ */
:root {
  /* Colors - Brand Palette */
  --primary-color: #0b8d0b;
  --secondary-color: #242146;
  --accent-red: #fb3640; /* Imperial Red - symbolizes care, vitality, and compassion */
  --accent-blue: #007deb; /* Azure Blue - conveys trust, professionalism, and reliability */
  --text-dark: #111111; /* Night Black - adds strength, stability, and clarity */
  --text-light: #ffffff; /* White - signifies purity, cleanliness, and precision */
  --bg-white: #ffffff; /* White - signifies purity, cleanliness, and precision */
  --bg-dark: #000000;
  --bg-light: #f5f5f5;

  /* Typography - Brand Fonts */
  /* Gotham Bold for headings, Gotham Book for body text */
  /* Fallback to Montserrat (similar geometric sans-serif) */
  --font-heading: "Gotham", "Gotham Bold", "Montserrat", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Gotham", "Gotham Book", "Montserrat", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-main: var(--font-body); /* Default font */
  --font-weight-normal: 400; /* Gotham Book weight */
  --font-weight-semibold: 600;
  --font-weight-bold: 700; /* Gotham Bold weight */
  --font-weight-extrabold: 800;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;

  /* Layout */
  --container-max-width: 1200px;
  --container-padding: 1.5rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
}

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

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

body {
  font-family: var(--font-body); /* Gotham Book for body text */
  font-weight: var(--font-weight-normal);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

a:hover,
a:focus {
  opacity: 0.8;
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

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

ul {
  list-style: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================
   BUTTON COMPONENT
   ============================================ */
.btn {
  display: inline-block;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  padding: 0;
}

.btn:hover,
.btn:focus {
  transform: scale(1.05);
  opacity: 0.9;
}

.btn:active {
  transform: scale(0.98);
}

.btn__img {
  width: 100%;
  height: auto;
  display: block;
  max-width: 180px; /* Standard CTA button size */
}

.btn--large .btn__img {
  max-width: 200px; /* Slightly larger for hero section */
  width: 100%;
  height: auto;
}

.btn--large {
  display: inline-block;
  margin-top: var(--spacing-sm);
}

.btn--blue {
  background-color: var(--accent-blue);
  color: var(--text-light);
  padding: 0.875rem 1rem;
  border-radius: 6px;
  font-weight: var(--font-weight-bold);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  text-align: center;
  display: inline-block;
  border: none;
  width: fit-content;
}

.btn--blue:hover,
.btn--blue:focus {
  background-color: #0066cc;
  opacity: 1;
  transform: scale(1.05);
}

.btn--large.btn--blue {
  padding: 1rem 1.125rem;
  font-size: 1rem;
}

.btn--black {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding: 0.875rem 1rem;
  border-radius: 6px;
  font-weight: var(--font-weight-bold);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  text-align: center;
  display: inline-block;
  border: none;
  width: fit-content;
}

.btn--black:hover,
.btn--black:focus {
  background-color: #333333;
  opacity: 1;
  transform: scale(1.05);
}

.btn--red {
  background-color: var(--accent-red);
  color: var(--text-light);
  padding: 0.875rem 1rem;
  border-radius: 6px;
  font-weight: var(--font-weight-bold);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  text-align: center;
  display: inline-block;
  border: none;
  width: fit-content;
}

.btn--red:hover,
.btn--red:focus {
  background-color: #e02e36;
  opacity: 1;
  transform: scale(1.05);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  background-color: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: var(--spacing-md);
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-img {
  height: 50px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: nowrap;
  flex-shrink: 0;
  transition: transform var(--transition-normal),
    opacity var(--transition-normal);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: nowrap;
  margin: 0;
  padding: 0;
  list-style: none;
  flex-shrink: 0;
}

.nav__link {
  font-weight: var(--font-weight-semibold);
  color: var(--text-dark);
  padding: var(--spacing-xs);
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition-fast),
    background-color var(--transition-fast);
  font-size: 0.9rem;
  white-space: nowrap;
  min-height: 44px; /* Touch target size */
  justify-content: center;
}

.nav__link:hover,
.nav__link:focus {
  color: var(--accent-blue);
  opacity: 1;
  background-color: transparent;
}

.nav__link--dropdown {
  position: relative;
}

.nav__dropdown-arrow {
  font-size: 0.7em;
  margin-left: 4px;
  transition: transform var(--transition-fast);
}

.nav__item--dropdown:hover .nav__dropdown-arrow,
.nav__link--dropdown[aria-expanded="true"] .nav__dropdown-arrow {
  transform: rotate(180deg);
}

.nav__separator {
  color: var(--text-dark);
  opacity: 0.5;
  padding: 0 0.25rem;
  font-weight: var(--font-weight-normal);
  margin: 0;
}

.nav__phone {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-dark);
  white-space: nowrap;
  padding: var(--spacing-xs);
  border-radius: 4px;
  transition: color var(--transition-fast),
    background-color var(--transition-fast);
  font-size: 0.9rem;
  min-height: 44px; /* Touch target size */
}

.nav__phone:hover,
.nav__phone:focus {
  color: var(--accent-blue);
  opacity: 1;
}

.nav__phone-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  object-fit: contain;
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  justify-content: center;
  align-items: center;
  min-width: 44px; /* Touch target size */
  min-height: 44px;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-dark);
  transition: all var(--transition-normal);
  border-radius: 2px;
  pointer-events: none;
}

.nav__toggle:focus {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.nav__toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.nav__toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  background-color: var(--bg-white);
  padding: var(--spacing-xl) var(--container-padding);
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: calc(
    var(--spacing-xl) + 60px
  ); /* Align with Contact Us in navbar */
}

.hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: var(--spacing-lg);
  align-items: center;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.hero__content {
  padding-left: 0;
  padding-top: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.hero__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.hero__heading span {
  display: block;
}

.hero__heading--red {
  color: var(--accent-red);
}

.hero__heading--blue {
  color: var(--accent-blue);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
  line-height: 1.6;
}

.hero__subtitle span {
  display: block;
}

.hero__content .btn {
  margin-top: var(--spacing-sm);
}

.hero__image {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding-top: 0;
  padding-left: var(--spacing-lg);
  align-self: flex-start;
  margin-top: -60px; /* Align bottle top with Contact Us in navbar */
}

.hero__bottle {
  max-width: 240px;
  width: 100%;
  height: auto;
  object-fit: contain;
  transform: rotate(1deg);
}

/* ============================================
   ASF SECTION
   ============================================ */
.asf-section {
  background-image: url("../assets/Section 2/Background.png");
  background-size: cover; /* Cover entire section with image */
  background-position: center center;
  background-repeat: no-repeat;
  padding: var(--spacing-xl) var(--container-padding);
  padding-bottom: calc(var(--spacing-xl) + 350px); /* Extra padding for video overlap below CTA */
  position: relative;
  color: var(--text-light);
  min-height: 500px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Red overlay removed to show background image clearly */
/* .asf-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(251, 54, 64, 0.5);
  z-index: 0;
} */

.asf-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  text-align: center;
}

.asf-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5); /* Add shadow for better readability */
}

.asf-section__heading span {
  display: block;
}

.asf-section__text {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.8;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5); /* Add shadow for better readability */
}

.asf-section__content {
  position: relative;
  z-index: 3; /* Ensure CTA is above video thumbnail */
  margin-bottom: var(--spacing-xxl);
  padding-bottom: var(--spacing-lg);
}

.asf-section__content .btn {
  position: relative;
  z-index: 4;
  display: inline-block;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   VIDEO SECTION
   ============================================ */
.video-section {
  background-color: var(--bg-white);
  padding: var(--spacing-xl) var(--container-padding);
  padding-top: 0;
  position: relative;
  z-index: 2;
  margin-top: -300px; /* Pull up so video overlaps ASF section */
}

.video-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  text-align: center;
  padding-top: 0;
}

.video-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin: 0;
  color: var(--text-dark);
}

.video-section__heading--red {
  color: var(--accent-red);
}

.video-section__heading--blue {
  color: var(--accent-blue);
}

.video-section__player {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  z-index: 1; /* Below CTA button */
  margin-top: -250px; /* Overlap into Section 2, positioned below CTA */
  margin-bottom: var(--spacing-md);
}

.video-section__play-btn {
  position: relative;
  width: 100%;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.video-section__thumbnail {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
}

.video-section__play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  transition: transform var(--transition-fast);
}

.video-section__play-btn:hover .video-section__play-icon {
  transform: translate(-50%, -50%) scale(1.1);
}

/* ============================================
   MECHANISM SECTION
   ============================================ */
.mechanism-section {
  background-image: url("../assets/Section 4/Background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: var(--spacing-xxl) var(--container-padding);
  position: relative;
  color: var(--text-light);
}

.mechanism-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(25, 118, 210, 0.95);
  z-index: 0;
}

.mechanism-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.mechanism-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.mechanism-section__text {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.mechanism-section__benefits {
  margin-bottom: var(--spacing-lg);
}

.mechanism-section__benefit {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: clamp(0.95rem, 1.5vw, 1.125rem);
  line-height: 1.6;
}

.mechanism-section__check {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.mechanism-section__animation {
  overflow: visible; /* Allow cell glow effects to extend beyond container */
  position: relative;
}

/* Cell Animation */
.cell-animation {
  width: 100%;
  height: 400px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible; /* Allow glow effects to show */
  padding: 20px; /* Add padding to prevent cells from going outside while allowing glow */
}

.cell-animation__container {
  position: relative;
  width: 100%;
  max-width: 400px; /* Tighter container for compact cluster */
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible; /* Allow glow effects to extend beyond container */
}

.cell-animation__cell {
  position: absolute;
  animation: cellPulse 2s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(0, 125, 235, 0.5)); /* Blue glow effect */
  transition: transform 0.3s ease, filter 0.4s ease, opacity 0.4s ease;
}

.cell-animation__cell:hover {
  transform: scale(1.1);
  filter: drop-shadow(0 0 15px rgba(0, 125, 235, 0.8));
}

/* Red cell glow effect - applied via JavaScript when cell is red */
.cell-animation__cell.cell-red {
  filter: drop-shadow(0 0 10px rgba(251, 54, 64, 0.5)); /* Red glow effect */
}

.cell-animation__cell.cell-red:hover {
  filter: drop-shadow(0 0 15px rgba(251, 54, 64, 0.8));
}

@keyframes cellPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

/* Ripple animation for click prompt */
@keyframes rippleAnimation {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.6;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.3;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

.cell-animation__click-prompt-wrapper {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cell-animation__click-prompt {
  position: relative;
  text-align: center;
  z-index: 101; /* Higher than wrapper to ensure text is in front */
}

.cell-animation__ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

/* ============================================
   PROOF SECTION (CAROUSEL)
   ============================================ */
.proof-section {
  background-color: var(--bg-white);
  padding: var(--spacing-xl) var(--container-padding);
}

.proof-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.proof-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.proof-section__heading--red {
  color: var(--accent-red);
}

.proof-section__heading--blue {
  color: var(--accent-blue);
}

/* Carousel */
.carousel {
  position: relative;
  width: 100%;
  padding: 0 40px; /* Space for side arrows */
}

.carousel__track {
  overflow: hidden;
  border-radius: 0;
  box-shadow: none;
  position: relative;
  border: none;
}

.carousel__slide {
  display: none;
}

.carousel__slide--active {
  display: block;
}

.carousel__slide-wrapper {
  position: relative;
  width: 100%;
  cursor: pointer;
}

.carousel__slide-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("../assets/Section 5/Black Hover.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 1;
  pointer-events: none;
}

.carousel__slide-wrapper:hover::before {
  opacity: 1;
}

.carousel__image {
  width: 100%;
  height: auto;
  display: block;
  border: none;
  border-radius: 0;
  position: relative;
  z-index: 0;
}

.carousel__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: var(--spacing-md);
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.carousel__slide-wrapper:hover .carousel__overlay {
  opacity: 1;
}

.carousel__gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  background-image: url("../assets/Section 5/White Gradient.png");
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
  opacity: 1;
}

.carousel__view-more {
  position: relative;
  z-index: 3;
  color: var(--text-light);
  font-weight: var(--font-weight-bold);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
  text-decoration: none;
  pointer-events: auto;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.carousel__view-more:hover,
.carousel__view-more:focus {
  color: var(--accent-blue);
}

.carousel__controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.carousel__btn {
  width: auto;
  height: auto;
  border-radius: 0;
  background-color: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity var(--transition-fast);
  padding: 0;
  pointer-events: auto;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.carousel__btn--prev {
  left: -30px;
  opacity: 0;
  pointer-events: none;
}

.carousel__btn--prev.carousel__btn--visible {
  opacity: 1;
  pointer-events: auto;
}

.carousel__btn--next {
  right: -30px;
}

.carousel__btn--next.carousel__btn--hidden {
  opacity: 0;
  pointer-events: none;
}

.carousel__btn:hover,
.carousel__btn:focus {
  opacity: 0.7;
}

.carousel__arrow {
  width: 16px;
  height: 24px;
  display: block;
  transition: opacity var(--transition-fast);
  object-fit: contain;
}

.carousel__arrow--prev {
  transform: rotate(180deg);
}

.carousel__arrow--next {
  transform: rotate(0deg);
}

.carousel__indicators {
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  justify-content: center;
  margin-top: var(--spacing-md);
}

.carousel__indicator {
  width: auto;
  height: auto;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel__indicator:hover {
  transform: scale(1.2);
  opacity: 0.8;
}

.carousel__indicator-img {
  width: 12px;
  height: 12px;
  display: block;
  transition: opacity var(--transition-fast);
}

.carousel__indicator--active .carousel__indicator-img {
  opacity: 1;
}

.carousel__indicator:not(.carousel__indicator--active) .carousel__indicator-img {
  opacity: 0.5;
}

/* ============================================
   PRODUCT SECTION
   ============================================ */
.product-section {
  background-image: url("../assets/Section 6/Background.png");
  background-size: 100% auto;
  background-position: center top;
  background-repeat: no-repeat;
  padding: 0;
  width: 100%;
  position: relative;
  color: var(--text-light);
  display: block;
  /* Image is 4000x2483, aspect ratio ~1.61:1 */
  /* Use padding-bottom trick to maintain aspect ratio: height = width * (2483/4000) */
  padding-bottom: 62.075%; /* 2483/4000 * 100 = 62.075% */
  min-height: 800px; /* Fallback minimum height */
}

.product-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: transparent;
  z-index: 0;
}

.product-section__container {
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl) var(--container-padding);
}

.product-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin-bottom: var(--spacing-xl);
  line-height: 1.2;
}

.product-section__display {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.product-section__box-img,
.product-section__bottle-img {
  max-width: 300px;
  width: 100%;
  filter: drop-shadow(var(--shadow-lg));
}

.product-section__features {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: auto;
  padding-bottom: var(--spacing-xl);
  position: relative;
  z-index: 2;
}

.product-section__feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 150px;
}

.product-section__feature-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xs);
  padding: var(--spacing-xs);
}

.product-section__feature-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-section__feature-title {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: var(--font-weight-semibold);
}

.product-section__connector {
  width: 60px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
}

/* ============================================
   ADMIN SECTION
   ============================================ */
.admin-section {
  background-image: url("../assets/Section 7/Background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: var(--spacing-xxl) var(--container-padding);
  position: relative;
}

.admin-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 0;
}

.admin-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.admin-section__heading {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-lg);
  color: var(--text-light);
  line-height: 1.3;
}

.admin-section__heading--red {
  color: var(--accent-red);
}

.admin-section__heading--blue {
  color: var(--accent-blue);
}

.admin-section__video {
  max-width: 800px;
  margin: 0 auto;
}

.admin-section__play-btn {
  position: relative;
  width: 100%;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.admin-section__thumbnail {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
}

.admin-section__play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  transition: transform var(--transition-fast);
}

.admin-section__play-btn:hover .admin-section__play-icon {
  transform: translate(-50%, -50%) scale(1.1);
}

/* ============================================
   PROTOCOL SECTION
   ============================================ */
.protocol-section {
  background-color: var(--bg-white);
  padding: var(--spacing-xl) var(--container-padding);
}

.protocol-section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.protocol-section__img {
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
  filter: drop-shadow(var(--shadow-md));
}

.protocol-section__heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold); /* Gotham Bold */
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.protocol-section__heading--red {
  color: var(--accent-red);
}

.protocol-section__text {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
  color: var(--text-dark);
}

.protocol-section__note {
  font-size: clamp(0.95rem, 1.5vw, 1rem);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-lg);
  color: var(--primary-color);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-image: url("../assets/Footer/Background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: var(--spacing-xl) var(--container-padding);
  color: var(--text-light);
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.9);
  z-index: 0;
}

.footer__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  position: relative;
  z-index: 1;
  margin-bottom: var(--spacing-lg);
}

.footer__logo {
  width: auto;
  height: auto;
  max-width: 300px;
  max-height: 120px;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
}

.footer__brand-text {
  font-weight: var(--font-weight-bold);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.footer__social {
  margin-top: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-light);
  font-size: 1.25rem;
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  border-radius: 4px;
}

.footer__social-link:hover,
.footer__social-link:focus {
  color: var(--accent-blue);
  transform: scale(1.1);
  opacity: 1;
}

.footer__address {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.footer__address p {
  margin: 0;
  flex: 1;
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-light);
}

.footer__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.footer__bottom {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.footer__copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer__legal {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer__legal-link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xs);
}

.footer__legal-link:hover,
.footer__legal-link:focus {
  color: var(--text-light);
  opacity: 1;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet and below (1024px) */
@media (max-width: 1024px) {
  .nav__container {
    gap: var(--spacing-sm);
  }

  .nav__menu {
    gap: 0.5rem;
  }

  .nav__link {
    font-size: 0.85rem;
    padding: 0.25rem;
  }

  .nav__phone {
    font-size: 0.85rem;
  }
}

/* Tablet portrait (768px) */
@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

  .nav__container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .nav__logo-img {
    height: 45px;
    max-width: 180px;
  }

  .nav__toggle {
    display: flex;
    order: 2;
    z-index: 1001;
  }

  .nav__right {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: var(--spacing-md) var(--container-padding);
    margin-top: 0;
    z-index: 1000;
  }

  .nav__right--open {
    display: flex;
  }

  .nav__menu {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin: 0;
    padding: 0;
  }

  .nav__menu li {
    width: 100%;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }

  .nav__menu li:last-child {
    border-bottom: none;
  }

  .nav__link {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: 1rem;
    justify-content: space-between;
  }

  .nav__separator {
    display: none;
  }

  .nav__phone {
    width: 100%;
    padding: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 1rem;
    justify-content: flex-start;
  }

  .nav__phone-icon {
    width: 20px;
    height: 20px;
  }

  .hero__container,
  .video-section__container,
  .mechanism-section__container,
  .proof-section__container,
  .protocol-section__container {
    grid-template-columns: 1fr;
  }

  .hero__image {
    order: -1;
  }

  .product-section__features {
    flex-direction: column;
  }

  .product-section__connector {
    width: 2px;
    height: 40px;
  }

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

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

/* Mobile landscape and small tablets (640px) */
@media (max-width: 640px) {
  .nav__logo-img {
    height: 40px;
    max-width: 150px;
  }

  .hero__bottle {
    max-width: 200px;
  }
}

/* Mobile portrait (480px) */
@media (max-width: 480px) {
  :root {
    --container-padding: 0.75rem;
  }

  .nav__container {
    padding: var(--spacing-xs) var(--container-padding);
  }

  .nav__logo-img {
    height: 35px;
    max-width: 130px;
  }

  .nav__toggle {
    width: 28px;
    height: 28px;
  }

  .nav__right {
    padding: var(--spacing-sm) var(--container-padding);
  }

  .nav__link,
  .nav__phone {
    padding: var(--spacing-sm);
    font-size: 0.95rem;
  }

  .hero {
    min-height: auto;
    padding: var(--spacing-md) var(--container-padding);
  }

  .hero__bottle {
    max-width: 180px;
  }

  .btn--large .btn__img {
    max-width: 200px;
  }

  .asf-section,
  .mechanism-section,
  .product-section {
    padding: var(--spacing-lg) var(--container-padding);
  }
}

/* Small mobile (360px) */
@media (max-width: 360px) {
  :root {
    --container-padding: 0.5rem;
  }

  .nav__logo-img {
    height: 30px;
    max-width: 110px;
  }

  .hero__heading {
    font-size: clamp(1.5rem, 6vw, 2.5rem);
  }

  .hero__bottle {
    max-width: 150px;
  }

  .btn--large .btn__img {
    max-width: 180px;
  }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-blue);
  color: var(--text-light);
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}