:root {
  --color-main-blue: #043873;
  --color-primary-baby-blue: #4f9cf9;
  --color-yellow: #ffe492;
  --color-text-black: #212529;

  --font-size-small: 1.6rem;
  --font-size-larg: 7rem;
  --padding-section: 6rem 0;
}

/* --- CSS Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

a {
  color: inherit;
  display: inline-block;
}

button {
  display: inline-block;
  background-color: transparent;
  border: none;
  cursor: pointer;
  border: 0;
}

ul,
ol {
  list-style: none;
}

html {
  /* 1rem = 10px */
  font-size: 62.5%;
  scroll-behavior: smooth;
  scroll-padding-top: 4rem;
  overflow-x: hidden;
}

body {
  font-size: 1.6rem;
  font-family: "Inter", serif;
  line-height: 1.3;
}

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

/* --- End CSS Reset --- */

.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1rem 2.5rem;
}
.tow-cols,
.three-cols {
  padding: var(--padding-section);
}
/* --- Header --- */
.header {
  background-color: #043873;
  padding-top: 1.5rem;
  transition: 0.3 ease-in-out;
}
.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header__logo .logo {
  width: 19.1rem;
  height: 3.4rem;
}
.header__navigation {
  display: flex;
  gap: 3.2rem;
  font-size: var(--font-size-small);
  color: #ffff;
  cursor: pointer;
  transition: trasform 0.3s ease-in;
}
.header__navigation li:hover {
  color: #ffe492;
  transform: scale(1.04);
}
.burger-mnue__checkbox {
  display: none;
}
.header__buttons {
  display: flex;
  gap: 2.4rem;
}
.log-in--btn {
  background-color: var(--color-yellow);
  color: var(--color-main-blue);
  font-size: var(--font-size-small);
  padding: 1rem 1.4rem;
  border-radius: 0.4rem;
}
.global-blue--btn {
  background-color: var(--color-primary-baby-blue);
  color: #ffff;
  font-size: var(--font-size-small);
  padding: 1rem 1.4rem;
  border-radius: 0.4rem;
  transition: 0.3s ease-in-out;
}
.global-blue--btn:hover {
  transform: scale(1.1);
}
/* --- End Header --- */

/* --- Hero Section --- */
.hero-section {
  background-color: var(--color-main-blue);
  padding: var(--padding-section);
  background-image: url(images/element/Element-bg.svg);
  background-size: cover;
  background-position: center center;
  z-index: -1;
}

.hero-section-content,
.tow-cols {
  display: flex;
  flex-direction: row;
  align-content: center;
  justify-content: center;
  gap: 4rem;
}
.text-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.8rem;
  color: #ffff;
}
.main-text-heading {
  font-size: var(--font-size-larg);
  font-weight: 700;
  line-height: 1.25;
  /* letter-spacing: 1; */
}
.main-text-paragraph {
  font-size: var(--font-size-small);
  font-weight: 300;
  margin-bottom: var(--font-size-larg);
}
.text-box button {
  align-self: self-start;
}
.img-box img {
  width: 680px;
  height: 430px;
}
/* --- End Hero Section --- */

/* --- Products Section --- */
.products-section-content h2,
.products-section-content p {
  color: var(--color-text-black);
}

/* --- End Products Section --- */

/* --- Resources Section --- */
.bg-test,
.resources-section,
.footer {
  background-color: #043873;
  width: 100%;
}
/* --- End Resources Section --- */

/* --- Pricing Section --- */
.three-cols {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3rem;
}
.pricing-boxes,
.three-boxes {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex: 1;
}

.pricing-box {
  border: 1px solid var(--color-yellow);
  border-radius: 0.6rem;
  padding: 3rem 2.4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.plan-name {
  font-weight: bold;
}
.plan-description {
  font-weight: 500;
  margin-bottom: 0.2rem;
}
.plan-price {
  font-size: 3.2rem;
  font-weight: 700;
}
.plan-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-start;
  list-style-position: inside;
}
.plan-feature {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin: 0.6rem;
}
.paln-btn {
  font-size: var(--font-size-small);
  padding: 1rem 1.4rem;
  border-radius: 0.4rem;
  border: 1px solid var(--color-yellow);
}
.personla-plan {
  background-color: var(--color-main-blue);
  color: #ffff;
  padding: 6rem 2.4rem;
  border: none;
}
.personla-plan .plan-price {
  color: var(--color-yellow);
}
/* --- End Pricing Section --- */

/* --- About Section --- */
.about-section {
  background-color: var(--color-main-blue);
  color: #ffff;
  text-align: center;
  background-image: url(images/element/BACKGROUND.svg);
  background-repeat: no-repeat;
}
/* --- End About Section --- */

/* --- Sponsors Section --- */
.sponsors-section-content .text-box {
  color: var(--color-text-black);
}
.logos-box {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 9rem;
}
/* --- End Sponsors Section --- */

/* --- Testimonial Section */
.testimonial-section-content {
  margin-top: 6rem;
}
.client-box {
  gap: 2rem;
  padding: 3rem 2.4rem;
  border-radius: 1rem;
  box-shadow: rgba(149, 157, 165, 0.2) 0px 8px 24px;
}
.top {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  border-bottom: 1px solid var(--color-text-black);
}
.top img {
  width: 100px;
  height: auto;
  flex-shrink: 0;
}

.bottom {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: 3rem;
}
.client-job {
  margin-top: 0.5rem;
  font-size: var(--font-size-small);
}

.blue-box {
  background-color: var(--color-primary-baby-blue);
  color: #ffff;
}
.blue-box .top {
  border-color: #ffff;
}
.blue-box .client-name {
  color: var(--color-main-blue);
}
/* --- End Testimonial Section */

/* --- Footer --- */
.footer-content {
  color: #ffff;
}
.footer-btn {
  margin-top: 0;
}
.three-cols-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.footer-content .logos-box--footer {
  margin-top: -5rem;
  display: flex;
  flex-direction: row;
  gap: 3rem;
}
.footer-cols {
  display: flex;
  flex-direction: row;
  gap: 8rem;
  flex: 1;
}
.footer-column img {
  margin-bottom: 2rem;
}
.footer-list-title {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 0.8rem;
}
.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.footer-list-item {
  font-size: var(--font-size-small);
}
.footer-list-item:hover {
  color: var(--color-yellow);
  text-decoration: underline;
}
.main-text-heading--footer {
  font-size: 2.8rem;
  font-weight: 500;
}
.main-text-paragraph--footer {
  margin: 1.8rem 0;
}
.footer-bottom {
  margin-top: 4rem;
  border-bottom: 1px solid var(--color-text-black);
}
.footer-author {
  margin: 1.2rem 3rem;
  font-size: var(--font-size-small);
}
.footer-author a {
  font-size: 1.5rem;
  font-weight: bold;
}
.footer-author {
  display: flex;
  justify-content: space-between;
}
.author-icons a {
  margin-right: 0.6rem;
}
/* --- End Footer --- */

/* --- Responsive Design --- */

/* -- Tablet Virson -- */
@media (max-width: 768px) {
  .tow-cols,
  .hero-section-content {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-direction: column;
  }
  .header__buttons {
    display: none;
  }
  .three-cols {
    display: flex;
    gap: 1rem;
    flex-direction: column;
  }
  .logos-box {
    display: flex;
    flex-direction: column;
  }
  .products-section-content {
    display: flex;
    flex-direction: column;
  }
  .client-box {
    padding: 1.5rem 1rem;
  }
  .client-data h4,
  .client-box p {
    font-size: 70%;
  }
  .footer-cols {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  .three-cols-footer {
    display: flex;
    flex-direction: row;
  }
  .footer-top .main-text-heading {
    font-size: calc(var(--font-size-larg) / 2);
  }
}

/* -- Mobiel Virson -- */
@media (max-width: 550px) {
  html {
    font-size: 10px;
  }
  section {
    font-size: 1.4rem;
  }
  .header__content {
    position: relative;
    padding: 0;
    z-index: 10;
  }

  .burger-menu {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    gap: 0.75rem;
    z-index: 200;
    position: relative;
    align-self: center;
  }
  .header__buttons {
    display: none;
  }

  .header__content:has(.burger-mnue__checkbox:checked)
    .burger-menu__bar:nth-child(1) {
    transform: translateY(10px) rotate(40deg);
  }
  .header__content:has(.burger-mnue__checkbox:checked)
    .burger-menu__bar:nth-child(2) {
    opacity: 0;
    visibility: hidden;
  }
  .header__content:has(.burger-mnue__checkbox:checked)
    .burger-menu__bar:nth-child(3) {
    transform: translateY(-10px) rotate(-40deg);
  }
  .burger-menu__bar {
    height: 0.3rem;
    width: 4.375rem;
    background-color: #fff;
    transition: 0.2 ease-in-out;
  }
  .header__logo {
    z-index: 100;
  }

  /* Test burger menu */
  /* .header__navigation {
    position: absolute;
    width: 100vw;
    background-color: aqua;
    top: 0;
    left: auto;
    padding: 2rem 0;
    border-bottom: 0.1rem solid #fff;
    z-index: 5;
  } */

  .header__navigation {
    display: none;
    position: absolute;
    width: 100%;
    top: 150%;
    left: 0;
    z-index: -5;
    padding: 1.2rem 0;
    margin-right: 1rem;
    text-align: center;
    background-color: #4f9cf9;
    border-radius: 0.5rem;
    transition: 0.1s ease-in;
  }
  .header__navigation a {
    margin: 0 0.5rem;
  }

  .burger-mnue__checkbox:checked + .header__navigation {
    display: block;
  }

  .img-box img {
    width: 100%;
    height: auto;
  }
  .container {
    display: flex;
    flex-direction: column;
  }

  .header__logo {
    width: -50%;
  }

  .text-box {
    text-align: center;
  }
  .text-box button {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .global-blue--btn {
    margin: 0 auto;
    gap: 1rem;
  }

  .products-section-content .main-text-heading,
  .about-section-content .main-text-heading,
  .hero-section-content .main-text-heading,
  .resources-section-content .main-text-heading,
  .footer-top {
    font-size: 5rem;
    text-align: center;
  }
  .section .main-text-heading {
    font-size: 5rem;
  }
  .three-boxes {
    flex-direction: column;
  }
  .footer-column img {
    width: 60%;
  }
  .footer-author {
    font-size: 1.2rem;
  }
}