/*=============== VARIABLES CSS ===============*/
:root {
  --header-height: 4.5rem;

  /*========== Colors ==========*/
  /* Primary Brand Colors */
  --primary-color: #0078D4;
  --primary-dark: #005A9E;
  --primary-light: #50A0E6;
  --primary-lighter: #E6F2FB;
  
  /* Secondary Colors */
  --secondary-color: #2B88D8;
  --accent-color: #00B294;
  --accent-dark: #008573;
  
  /* Neutral Colors */
  --title-color: #1A1A1A;
  --text-color: #4A4A4A;
  --text-color-light: #6B6B6B;
  --body-color: #FFFFFF;
  --container-color: #FFFFFF;
  --border-color: #E0E0E0;
  
  /* Status Colors */
  --success-color: #00B294;
  --warning-color: #FFB900;
  --error-color: #E74856;
  --info-color: #0078D4;
  
  /* Background Colors */
  --bg-gray: #F8F9FA;
  --bg-light: #FAFBFC;
  --bg-dark: #1A1A1A;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.20);
  
  /*========== Font and Typography ==========*/
  --body-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Font Sizes - Mobile First */
  --biggest-font-size: 2rem;
  --h1-font-size: 1.75rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.813rem;
  
  /* Font Weight */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /*========== Spacing ==========*/
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /*========== Border Radius ==========*/
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /*========== Transitions ==========*/
  --transition-fast: 0.2s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /*========== Z-index ==========*/
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

/* Responsive Typography */
@media screen and (min-width: 1024px) {
  :root {
    --biggest-font-size: 3rem;
    --h1-font-size: 2.5rem;
    --h2-font-size: 2rem;
    --h3-font-size: 1.5rem;
    --normal-font-size: 1.125rem;
    --small-font-size: 1rem;
    --smaller-font-size: 0.875rem;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  font-weight: var(--font-regular);
  background-color: var(--body-color);
  color: var(--text-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  color: var(--title-color);
  font-weight: var(--font-bold);
  line-height: 1.2;
}

ul {
  list-style: none;
}

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

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

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

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

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 1200px;
  margin-left: var(--spacing-sm);
  margin-right: var(--spacing-sm);
  margin-left: auto;
  margin-right: auto;
}

@media screen and (min-width: 768px) {
  .container {
    margin-left: var(--spacing-lg);
    margin-right: var(--spacing-lg);
  }
}

@media screen and (min-width: 1024px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }
}

.section {
  padding: var(--spacing-3xl) 0;
}

@media screen and (max-width: 767px) {
  .section {
    padding: var(--spacing-2xl) 0;
  }
}

.section--gray {
  background-color: var(--bg-gray);
}

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

.section__subtitle {
  display: inline-block;
  font-size: var(--small-font-size);
  font-weight: var(--font-semibold);
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.section__title {
  font-size: var(--h2-font-size);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

@media screen and (min-width: 768px) {
  .section__title {
    font-size: var(--h1-font-size);
  }
}

.section__description {
  color: var(--text-color-light);
  font-size: var(--normal-font-size);
  line-height: 1.7;
}

/*=============== BUTTONS ===============*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-weight: var(--font-semibold);
  font-size: var(--normal-font-size);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.btn i {
  font-size: 1.125rem;
}

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

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

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

.btn--secondary:hover {
  background-color: var(--primary-lighter);
}

.btn--large {
  padding: 1.125rem 2rem;
  font-size: 1.0625rem;
}

.btn--full {
  width: 100%;
}

/*=============== HEADER & NAV ===============*/
.header {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background-color: var(--body-color);
  z-index: var(--z-fixed);
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: var(--font-bold);
  color: var(--title-color);
}

.nav__logo i {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.nav__logo strong {
  color: var(--primary-color);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  font-weight: var(--font-medium);
  color: var(--text-color);
  transition: var(--transition-base);
}

.lang-switch:hover {
  background-color: var(--bg-gray);
  color: var(--primary-color);
}

.lang-switch i {
  font-size: 1rem;
}

/* Mobile Navigation */
@media screen and (max-width: 1023px) {
  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--body-color);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    transition: var(--transition-base);
    z-index: var(--z-fixed);
  }

  .nav__menu.show-menu {
    right: 0;
  }

  .nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
  }

  .nav__link {
    font-size: 1.125rem;
    font-weight: var(--font-medium);
    color: var(--title-color);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
  }

  .nav__link:hover,
  .nav__link.active {
    color: var(--primary-color);
  }

  .nav__link--cta {
    background-color: var(--primary-color);
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    border: none;
    margin-top: var(--spacing-sm);
  }

  .nav__close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--title-color);
  }

  .nav__toggle {
    font-size: 1.5rem;
    color: var(--title-color);
    cursor: pointer;
  }
}

/* Desktop Navigation */
@media screen and (min-width: 1024px) {
  .nav__menu {
    width: 100%;
  }

  .nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-left: var(--spacing-xl);
  }

  .nav__link {
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
    color: var(--title-color);
    position: relative;
  }

  .nav__link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-base);
  }

  .nav__link:hover::after,
  .nav__link.active::after {
    width: 100%;
  }

  .nav__link--cta {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
  }

  .nav__link--cta:hover {
    background-color: var(--primary-dark);
  }

  .nav__link--cta::after {
    display: none;
  }

  .nav__toggle,
  .nav__close {
    display: none;
  }
}

/*=============== HERO SECTION ===============*/
.hero {
  margin-top: var(--header-height);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-lighter) 0%, #FFFFFF 100%);
  padding: var(--spacing-3xl) 0;
}

.hero__container {
  position: relative;
  z-index: 2;
}

.hero__content {
  max-width: 700px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: white;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  font-size: var(--small-font-size);
  font-weight: var(--font-semibold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.hero__badge i {
  color: var(--accent-color);
}

.hero__title {
  font-size: var(--biggest-font-size);
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
}

@media screen and (min-width: 768px) {
  .hero__title {
    font-size: 3.5rem;
  }
}

.hero__title--highlight {
  color: var(--primary-color);
  display: block;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--text-color-light);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero__stat {
  text-align: center;
  padding: var(--spacing-md);
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.hero__stat-number {
  font-size: var(--h2-font-size);
  font-weight: var(--font-extrabold);
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.hero__stat-label {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

@media screen and (max-width: 767px) {
  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }
}

.hero__trust {
  padding-top: var(--spacing-md);
}

.hero__trust-text {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
  font-style: italic;
}

.hero__visual {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

@media screen and (min-width: 768px) {
  .hero__visual {
    grid-template-columns: repeat(3, 1fr);
  }
}

.hero__visual-card {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition-base);
}

.hero__visual-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.hero__visual-card i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.hero__visual-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.hero__visual-card p {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.hero__background {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__background-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.hero__background-shape--1 {
  width: 400px;
  height: 400px;
  background-color: var(--primary-color);
  top: -100px;
  right: -100px;
}

.hero__background-shape--2 {
  width: 300px;
  height: 300px;
  background-color: var(--accent-color);
  bottom: -50px;
  left: -50px;
}

.hero__background-shape--3 {
  width: 250px;
  height: 250px;
  background-color: var(--secondary-color);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/*=============== TRUST SECTION ===============*/
.trust {
  background-color: var(--body-color);
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--border-color);
}

.trust__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

@media screen and (max-width: 767px) {
  .trust__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }
}

.trust__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
}

@media screen and (max-width: 767px) {
  .trust__item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
  }
}

.trust__icon {
  font-size: 2rem;
  color: var(--primary-color);
  flex-shrink: 0;
}

@media screen and (max-width: 767px) {
  .trust__icon {
    font-size: 1.5rem;
  }
}

.trust__content {
  flex: 1;
}

.trust__number {
  font-size: 1.5rem;
  font-weight: var(--font-extrabold);
  color: var(--title-color);
  line-height: 1;
  margin-bottom: 0.25rem;
}

@media screen and (max-width: 767px) {
  .trust__number {
    font-size: 1.125rem;
  }
}

.trust__text {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

@media screen and (max-width: 767px) {
  .trust__text {
    font-size: 0.75rem;
  }
}

/*=============== CHALLENGES SECTION ===============*/
.challenges__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

@media screen and (max-width: 767px) {
  .challenges__grid {
    grid-template-columns: 1fr;
  }
}

.challenge-card {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
  opacity: 1;
  visibility: visible;
}

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

.challenge-card__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.challenge-card__icon i {
  font-size: 1.75rem;
  color: white;
}

.challenge-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--title-color);
}

.challenge-card__text {
  color: var(--text-color-light);
  line-height: 1.6;
}

.challenges__cta {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.challenges__cta-text {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

/*=============== SOLUTION SECTION ===============*/
.solution__features {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.feature {
  display: flex;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
  opacity: 1;
}

@media screen and (max-width: 767px) {
  .feature {
    flex-direction: column;
  }
}

.feature__icon {
  width: 70px;
  height: 70px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary-lighter) 0%, #FFFFFF 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.feature__icon i {
  font-size: 2rem;
  color: var(--primary-color);
}

.feature__content {
  flex: 1;
}

.feature__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--title-color);
}

.feature__text {
  color: var(--text-color-light);
  line-height: 1.7;
}

.solution__highlight {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  color: white;
  margin-bottom: var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.solution__highlight::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(50%, -50%);
}

.solution__highlight-content {
  position: relative;
  z-index: 1;
}

.solution__highlight i {
  font-size: 2rem;
  opacity: 0.5;
  margin-bottom: var(--spacing-sm);
}

.solution__highlight h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: white;
}

.solution__highlight p {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.solution__highlight-authors {
  font-size: var(--normal-font-size);
  opacity: 0.9;
}

.solution__cta {
  text-align: center;
}

/*=============== PROCESS SECTION ===============*/
.process__timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.process__step {
  position: relative;
  padding-left: 100px;
  margin-bottom: var(--spacing-3xl);
}

@media screen and (max-width: 767px) {
  .process__step {
    padding-left: 70px;
    margin-bottom: var(--spacing-xl);
  }
}

.process__step:last-child {
  margin-bottom: 0;
}

.process__step::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 80px;
  bottom: -60px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-lighter) 100%);
}

@media screen and (max-width: 767px) {
  .process__step::before {
    left: 23px;
  }
}

.process__step:last-child::before {
  display: none;
}

.process__step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 65px;
  height: 65px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: var(--font-extrabold);
  color: white;
  box-shadow: var(--shadow-md);
}

@media screen and (max-width: 767px) {
  .process__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.125rem;
  }
}

.process__step-content {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.process__step-content:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.process__step-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-lighter);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.process__step-icon i {
  font-size: 1.75rem;
  color: var(--primary-color);
}

.process__step-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--title-color);
}

.process__step-text {
  color: var(--text-color-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.process__step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.5rem;
}

.process__step-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--small-font-size);
  color: var(--text-color);
}

.process__step-list i {
  color: var(--accent-color);
  font-size: 0.875rem;
}

.process__cta {
  margin-top: var(--spacing-xl);
}

.process__cta-box {
  background: linear-gradient(135deg, var(--primary-lighter) 0%, #FFFFFF 100%);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.process__cta-box h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

.process__cta-box p {
  color: var(--text-color-light);
  margin-bottom: var(--spacing-lg);
  font-size: 1.125rem;
}

/*=============== CONTACT / FORM SECTION ===============*/
.contact__content {
  display: grid;
  gap: var(--spacing-xl);
}

@media screen and (min-width: 1024px) {
  .contact__content {
    grid-template-columns: 2fr 1fr;
  }
}

.contact__form-wrapper {
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

@media screen and (max-width: 767px) {
  .contact__form-wrapper {
    padding: var(--spacing-lg);
  }
}

.form__section {
  margin-bottom: var(--spacing-xl);
}

.form__section:last-child {
  margin-bottom: 0;
}

.form__section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--title-color);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary-color);
}

.form__section-title i {
  color: var(--primary-color);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media screen and (min-width: 768px) {
  .form__row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-weight: var(--font-medium);
  color: var(--title-color);
  margin-bottom: 0.5rem;
  font-size: var(--normal-font-size);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--normal-font-size);
  color: var(--text-color);
  background-color: var(--body-color);
  transition: var(--transition-base);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-lighter);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}

.form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A4A4A' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

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

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.form__checkbox input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.form__checkbox-label {
  font-size: var(--small-font-size);
  color: var(--text-color);
  line-height: 1.6;
}

.form__checkbox-label a {
  color: var(--primary-color);
  text-decoration: underline;
}

.form__checkbox-label a:hover {
  color: var(--primary-dark);
}

.form__note {
  text-align: center;
  font-size: var(--small-font-size);
  color: var(--text-color-light);
  margin-top: var(--spacing-md);
}

.contact__success {
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
}

.contact__success-icon {
  width: 80px;
  height: 80px;
  background-color: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
}

.contact__success-icon i {
  font-size: 2.5rem;
  color: white;
}

.contact__success h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
  color: var(--title-color);
}

.contact__success p {
  color: var(--text-color-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact__info-card {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.contact__info-card--highlight {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
  color: white;
  border: none;
  box-shadow: var(--shadow-lg);
}

.contact__info-card--highlight h3 {
  color: white;
  font-weight: var(--font-extrabold);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.contact__info-card--highlight h3 .fa-bolt {
  color: #ff3b30;
  filter: drop-shadow(0 0 8px rgba(255, 59, 48, 0.6));
}

.contact__info-card--highlight p {
  color: white !important;
  font-weight: var(--font-medium);
  line-height: 1.8;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.25);
}

.contact__info-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-lighter);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.contact__info-icon i {
  font-size: 1.75rem;
  color: var(--primary-color);
}

.contact__info-card--highlight .contact__info-icon {
  background-color: rgba(255, 255, 255, 0.2);
}

.contact__info-card--highlight .contact__info-icon i {
  color: white;
}

.contact__info-card--highlight .contact__info-icon i {
  color: white;
}

.contact__info-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.contact__info-card p {
  color: var(--text-color-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
}

.contact__info-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: var(--spacing-md);
}

.contact__info-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--primary-color);
  font-weight: var(--font-medium);
  transition: var(--transition-base);
}

.contact__info-link:hover {
  color: var(--primary-dark);
  transform: translateX(4px);
}

.contact__info-link i {
  font-size: 1rem;
}

.contact__info-list {
  margin-top: var(--spacing-sm);
}

.contact__info-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: var(--small-font-size);
}

.contact__info-list i {
  color: var(--accent-color);
}

/*=============== FAQ SECTION ===============*/
.faq__content {
  max-width: 900px;
  margin: 0 auto var(--spacing-xl);
}

.faq__item {
  background-color: white;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq__item:hover {
  box-shadow: var(--shadow-md);
}

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  background-color: white;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.125rem;
  font-weight: var(--font-semibold);
  color: var(--title-color);
  transition: var(--transition-base);
}

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

.faq__question i {
  font-size: 1.25rem;
  color: var(--primary-color);
  transition: var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--spacing-sm);
}

.faq__item.active .faq__question i {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-in-out;
}

.faq__item.active .faq__answer {
  max-height: 2000px;
}

.faq__answer > * {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq__answer div {
  padding: 0 var(--spacing-lg);
}

.faq__answer p {
  color: var(--text-color-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
}

.faq__answer ul {
  list-style: none;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
  margin: var(--spacing-sm) 0;
}

.faq__answer ul li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.5rem;
  color: var(--text-color-light);
  line-height: 1.7;
}

.faq__answer ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: var(--font-bold);
}

.faq__cta {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.faq__cta h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

.faq__cta p {
  color: var(--text-color-light);
  margin-bottom: var(--spacing-lg);
}

/*=============== FOOTER ===============*/
.footer {
  background-color: var(--bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

@media screen and (max-width: 767px) {
  .footer__content {
    grid-template-columns: 1fr;
  }
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: var(--font-bold);
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer__logo i {
  color: var(--primary-color);
  font-size: 1.75rem;
}

.footer__logo strong {
  color: var(--primary-color);
}

.footer__description {
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition-base);
}

.footer__social-link:hover {
  background-color: var(--primary-color);
  transform: translateY(-4px);
}

.footer__title {
  font-size: 1.125rem;
  color: white;
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-semibold);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__links a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition-base);
}

.footer__links a:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

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

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

.footer__contact i {
  color: var(--primary-color);
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.footer__contact a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition-base);
}

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

.footer__certifications {
  margin-top: var(--spacing-md);
}

.footer__cert-label {
  font-size: var(--small-font-size);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.5rem;
}

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

.footer__copyright,
.footer__legal {
  font-size: var(--small-font-size);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.5rem;
}

/*=============== SCROLL TO TOP ===============*/
.scroll-top {
  position: fixed;
  right: 1.5rem;
  bottom: -50%;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  z-index: var(--z-tooltip);
  cursor: pointer;
}

.scroll-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-4px);
}

.scroll-top.show-scroll {
  bottom: 3rem;
}

/*=============== SCROLL BAR ===============*/
::-webkit-scrollbar {
  width: 0.6rem;
  background-color: var(--bg-gray);
}

::-webkit-scrollbar-thumb {
  background-color: var(--primary-color);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--primary-dark);
}

/*=============== SELECTION ===============*/
::selection {
  background-color: var(--primary-color);
  color: white;
}

/*=============== ANIMATIONS ===============*/
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Intersection Observer Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}