/* ===================================
   Main Stylesheet - Leapcure Vaccines
   =================================== */

/* Base Styles */
body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text-dark);
  background-color: var(--color-white);
}

/* Utility Classes */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-body);
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid transparent;
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: rgba(242, 111, 125, 0.1);
  transform: translateY(-2px);
}

.btn-link {
  padding: 0;
  color: var(--color-white);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: var(--font-weight-medium);
  transition: opacity var(--transition-normal);
}

.btn-link:hover {
  opacity: 0.8;
}

/* ===================================
   Header / Navigation
   =================================== */
.header {
  position: sticky;
  top: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-header);
  padding: 16px 0;
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: var(--font-weight-semibold);
  font-size: 18px;
  color: var(--color-text-dark);
}

.header__logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header__nav-link {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-medium);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition-normal);
}

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

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.header__nav-link:hover::after {
  width: 100%;
}

.lc-pink {
  color: var(--color-primary);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(rgba(26, 77, 82, 0.7), rgba(26, 77, 82, 0.7)), url('../assets/images/hero-background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.hero__content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: left;
}

.hero__tag {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--spacing-sm);
  opacity: 0.9;
  line-height: .5rem;
}

.hero__headline {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

.hero__description {
  font-size: var(--font-size-body-large);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.hero__separator {
  height: 1px;
  width: 9%;
  border: 1px solid #f26f7d;
  border-radius: 2px;
}

/* ===================================
   Challenge Section
   =================================== */
.challenge {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-white);
}

.challenge__header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
}

.challenge__label {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--spacing-sm);
}

.challenge__title {
  font-size: var(--font-size-section-title);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.challenge__subtitle {
  font-size: var(--font-size-body-large);
  color: var(--color-text-gray);
  line-height: var(--line-height-relaxed);
}

.challenge__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.challenge__card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.challenge__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(242, 111, 125, 0.3);
}

.challenge__icon {
  width: 64px;
  height: 64px;
  background-color: rgba(14, 165, 233, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-icon-bg);
  font-size: 32px;
}

.challenge__card-title {
  font-size: var(--font-size-card-title);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-xs);
}

.challenge__card-description {
  font-size: var(--font-size-body);
  color: var(--color-text-gray);
  line-height: var(--line-height-relaxed);
}

/* ===================================
   Stats Section
   =================================== */
.stats {
  background-color: var(--color-teal);
  padding: var(--spacing-2xl) 0;
}

.stats__container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.stats__item {
  text-align: center;
  color: var(--color-white);
}

.stats__number {
  font-size: var(--font-size-stat-number);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-xs);
}

.stats__label {
  font-size: var(--font-size-small);
  color: var(--color-primary);
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===================================
   CTA Card Section
   =================================== */
.cta-section {
  background-color: var(--color-light-gray);
  padding: var(--spacing-3xl) 0;
}

.cta-card {
  max-width: 700px;
  margin: 0 auto;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-xl);
}

.cta-card__heading {
  font-size: var(--font-size-cta-heading);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-sm);
}

.cta-card__description {
  font-size: var(--font-size-body-large);
  color: var(--color-text-gray);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.cta-card__buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.cta-card__trust {
  font-size: var(--font-size-tiny);
  color: var(--color-text-gray);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: var(--font-weight-semibold);
}

/* ===================================
   Footer
   =================================== */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: var(--font-weight-semibold);
  font-size: 18px;
  margin-bottom: var(--spacing-sm);
}

.footer__logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.footer__description {
  font-size: var(--font-size-small);
  line-height: var(--line-height-relaxed);
  opacity: 0.8;
}

.footer__column-title {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
  opacity: 0.7;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer__link {
  font-size: var(--font-size-body);
  opacity: 0.9;
  transition: all var(--transition-normal);
  display: inline-block;
  position: relative;
}

.footer__link:hover {
  color: var(--color-primary);
  opacity: 1;
  padding-left: 4px;
}

.footer__bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-small);
  opacity: 0.7;
}