@import url('https://fonts.googleapis.com/css?family=Lato:400,700&display=swap');

:root {
  /* dark shades of primary color*/
  --color-primary-1: hsl(184, 91%, 17%);
  --color-primary-2: hsl(185, 84%, 25%);
  --color-primary-3: hsl(185, 81%, 29%);
  --color-primary-4: hsl(184, 77%, 34%);
  /* primary/main color */
  --color-primary-5: hsl(185, 62%, 45%);
  /* lighter shades of primary color */
  --color-primary-6: hsl(185, 57%, 50%);
  --color-primary-7: hsl(184, 65%, 59%);
  --color-primary-8: hsl(184, 80%, 74%);
  --color-primary-9: hsl(185, 94%, 87%);
  --color-primary-10: hsl(186, 100%, 94%);
  /* darkest grey - used for headings */
  --color-grey-1: hsl(209, 61%, 16%);
  --color-grey-2: hsl(211, 39%, 23%);
  --color-grey-3: hsl(209, 34%, 30%);
  --color-grey-4: hsl(209, 28%, 39%);
  /* grey used for paragraphs */
  --color-grey-5: hsl(210, 22%, 49%);
  --color-grey-6: hsl(209, 23%, 60%);
  --color-grey-7: hsl(211, 27%, 70%);
  --color-grey-8: hsl(210, 31%, 80%);
  --color-grey-9: hsl(212, 33%, 89%);
  --color-grey-10: hsl(210, 36%, 96%);
  --color-white: #fff;

  /* fonts */
  --font-plain: 'Lato', sans-serif;

  /* typography */
  --fw-light: 300;
  --fw-normal: 400;
  --fw-bold: 700;
  --ratio: 1.5;
  --spacing: 0.25rem;

  /* others */
  --transition: all 0.3s linear;
  --radius: 0.5rem;
  --light-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --dark-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);

  /* globals */
  font-family: var(--font-plain);
  line-height: var(--ratio);
}

/* ==================================
  RESET
===================================== */
html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  border: 0 solid;
  box-sizing: inherit;
  margin: 0;
  overflow-wrap: break-word;
  padding: 0;
}

body {
  background: var(--color-white);
  color: var(--color-grey-1);
  font-size: 0.875rem;
}

ul {
  list-style-type: none;
}

a {
  text-decoration: none;
}

img:not(.nav__logo) {
  width: 100%;
  display: block;
}

h1,
h2,
h3,
h4 {
  letter-spacing: var(--spacing);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  text-transform: capitalize;
}

p {
  color: var(--color-grey-5);
  margin-bottom: 1.25rem;
}

@media screen and (min-width: 800px) {
  body {
    font-size: 1rem;
  }

  h1,
  h2,
  h3,
  h4 {
    line-height: 1;
  }
}

/* ==================================
  GLOBAL CLASSES 
===================================== */

/* BUTTONS -------------- */

.btn {
  background: var(--color-primary-5);
  border: 2px solid transparent;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  color: var(--color-white);
  cursor: pointer;
  font-size: 0.875rem;
  display: inline-block;
  letter-spacing: var(--spacing);
  /* font-weight: 700; */
  padding: 0.375rem 0.75rem;
  transition: var(--transition);
  text-transform: uppercase;
}

.btn:focus,
.btn:hover {
  background: var(--color-primary-8);
  color: var(--color-primary-1);
}

/* FORMS -------------- */
.form__btn-submit,
.form__control {
  border: transparent;
  font-size: 1rem;
  font-weight: var(--fw-light);
  line-height: 1.5;
  padding: 0.375rem 0.75rem;
  text-transform: capitalize;
}

.form__btn-submit {
  background-color: var(--color-primary-8);
  color: var(--color-primary-1);
  cursor: pointer;
  font-family: var(--font-plain);
  letter-spacing: 4px;
  transition: var(--transition);
}

.form__btn-submit:focus,
.form__btn-submit:hover {
  background: var(--color-primary-1);
  color: var(--color-primary-5);
}

.form__control {
  flex: 1 1 auto;
  color: var(--color-grey-5);
  letter-spacing: 4px;
}

.form__control::placeholder {
  color: inherit;
}

/* SECTIONS -------------- */

.section {
  padding: 5rem 0;
}

.section__header {
  text-align: center;
  margin-block-end: 4rem;
}

.section__title {
  font-size: clamp(2rem, 1.5476rem + 1.9048vw, 2.5rem);
  text-transform: uppercase;
}

.section__title span {
  color: var(--color-primary-5);
}

.section-center {
  margin: 0 auto;
  max-width: 1170px;
  width: 90vw;
}

@media screen and (min-width: 992px) {
  .section-center {
    width: 95vw;
  }
}

/* ==================================
  ABOUT SECTION
===================================== */
.about__main,
.about__media {
  margin-block-end: 2rem;
}

@media screen and (min-width: 992px) {
  .about__center {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .about__media,
  .about__main {
    flex: 0 0 calc(50% - 2rem);
    margin-block-end: 0;
  }
}

@media screen and (min-width: 1170px) {
  .about__media,
  .about__image {
    position: relative;
  }

  .about__media::before {
    border: 0.5rem solid var(--color-primary-5);
    content: '';
    height: 100%;
    left: -1.5rem;
    position: absolute;
    top: -1.5rem;
    width: 100%;
  }
}

/* ==================================
  CONTACT SECTION
===================================== */

.contact {
  background: var(--color-primary-5);
}

.contact__form {
  display: flex;
  flex: 1 1 auto;
  gap: 0.5rem;
  max-width: 28rem;
}

.contact__subtitle {
  color: var(--color-primary-8);
  font-size: clamp(0.875rem, 0.6473rem + 0.9589vw, 1.3125rem);
}

.contact__title {
  color: var(--color-white);
  font-size: clamp(1.25rem, 0.9897rem + 1.0959vw, 1.75rem);
}

@media screen and (min-width: 992px) {
  .contact__center {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: space-between;
  }

  .contact__form {
    align-self: flex-start;
    max-width: 100%;
  }
}

/* ==================================
  COPYRIGHT
===================================== */
.copyright {
  color: var(--color-white);
  letter-spacing: var(--spacing);
  text-transform: capitalize;
}

/* ==================================
  FEATURED SECTION
===================================== */
.featured > .section__action {
  text-align: center;
}

/* CARD -------------- */
.card {
  background-color: var(--color-grey-10);
  box-shadow: var(--light-shadow);
  margin-block-end: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--dark-shadow);
  transform: scale(1.02);
}

.card__date {
  background-color: var(--color-primary-8);
  bottom: 0;
  color: var(--color-primary-1);
  margin-block-end: 0;
  padding: 0.25rem 0.5rem;
  position: absolute;
  right: 0;
  text-transform: capitalize;
}

.card__details {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-block-start: auto;
}

.card__details > * {
  color: var(--color-primary-5);
  line-height: 0;
  margin-block-end: 0;
  text-transform: capitalize;
}

.card__image {
  height: 15rem;
  object-fit: cover;
}

.card__main {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 1.25rem 1.5rem;
}

.card__media {
  position: relative;
}

.card__title {
  font-size: clamp(0.875rem, 0.7619rem + 0.4762vw, 1rem);
}

@media screen and (min-width: 768px) {
  .featured__center {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .card {
    flex: 0 0 calc(50% - 2rem);
  }
}

@media screen and (min-width: 1170px) {
  .card {
    flex: 0 0 calc(33.3333% - 2rem);
  }
}

/* ==================================
  FOOTER
===================================== */

.footer {
  background: var(--color-grey-1);
  padding-inline: 2rem;
  text-align: center;
}

.footer .link {
  color: var(--color-white);
}

.footer .link:hover,
.footer .link:focus {
  color: var(--color-primary-5);
  background-color: transparent;
}

.footer .link-list {
  justify-content: center;
}

.footer > * + * {
  margin-block-start: 1.5rem;
}

/* ==================================
  GALLERY SECTION
===================================== */

.gallery__icon {
  color: var(--color-white);
  cursor: pointer;
  font-size: 2rem;
  left: 50%;
  opacity: 0;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: var(--transition);
}

.gallery__image {
  height: 17rem;
  object-fit: cover;
  transition: var(--transition);
}

.gallery__media {
  position: relative;
  background: var(--color-primary-5);
}

.gallery__media:hover .gallery__image,
.gallery__media:focus .gallery__image {
  opacity: 0.6;
}

.gallery__media:hover .gallery__icon,
.gallery__media:focus .gallery__icon {
  opacity: 1;
}

@media screen and (min-width: 768px) {
  .gallery__center {
    display: flex;
    flex-wrap: wrap;
  }

  .gallery__media {
    flex: 0 0 50%;
  }
}

@media screen and (min-width: 992px) {
  .gallery__media {
    flex: 0 0 25%;
  }
}

/* ==================================
  HERO SECTION
===================================== */
.hero {
  align-items: center;
  background: var(--color-primary-5);
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.hero__banner {
  color: var(--color-white);
  padding: 0 3rem;
  text-align: center;
}

.hero__btn.btn {
  background-color: var(--color-white);
  color: var(--color-primary-5);
  font-size: 1.25rem;
  padding: 0.9rem 1.6rem;
}

.hero__btn.btn:hover {
  background-color: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}

.hero__text {
  color: var(--color-white);
  letter-spacing: var(--spacing);
  margin-inline: auto;
  max-width: 35rem;
}

.hero__title {
  text-transform: uppercase;
  font-size: clamp(3rem, 2.0952rem + 3.8095vw, 4rem);
}

@media screen and (min-width: 768px) {
  .hero {
    background: linear-gradient(rgba(44, 174, 186, 0.7), rgba(0, 0, 0, 0.7)),
      url(../images/main.jpeg) center/cover no-repeat;
  }

  .hero__banner {
    padding: 0;
  }

  .hero__text {
    max-width: 45rem;
  }
}

/* ==================================
  LINK
===================================== */
.link {
  color: var(--color-grey-1);
  display: block;
  font-size: 1rem;
  letter-spacing: var(--spacing);
  text-transform: capitalize;
  transition: var(--transition);
}

.link:focus,
.link:hover {
  color: var(--color-primary-1);
  background: var(--color-primary-8);
}

.link-list {
  display: flex;
  gap: 1rem;
}

.link-list--show {
  height: 280px !important;
}
/* ==================================
  NAVBAR
===================================== */

.nav {
  background: var(--color-white);
  box-shadow: var(--dark-shadow);
  left: 0;
  position: fixed;
  top: 0;
  width: 100vw;
  z-index: 2;
}

.nav .link {
  padding: 1rem 2rem;
}

.nav .link:focus,
.nav .link:hover {
  padding-inline-start: 2.25rem;
}

.nav .link-list {
  flex-direction: column;
  flex: 0 0 auto;
  gap: 0;
  height: 0;
  overflow: hidden;
  transition: var(--transition);
}

.nav__center {
  margin: 0 auto;
  max-width: 1170px;
  width: 100%;
}

.nav__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.nav .social__icon-list {
  display: none;
}

.nav__toggle {
  background: transparent;
  border: transparent;
  color: var(--color-primary-5);
  cursor: pointer;
  font-size: 1.5rem;
  transition: var(--transition);
}

.nav__toggle:focus,
.nav__toggle:hover {
  transform: scale(1.2);
}

@media screen and (min-width: 992px) {
  .nav {
    padding: 1rem 2rem;
  }

  .nav .link {
    padding: 0;
  }

  .nav .link:focus,
  .nav .link:hover {
    background: transparent;
    color: var(--color-primary-5);
    padding: 0;
  }

  .nav .link-list {
    flex-direction: row;
    height: auto !important;
    gap: 0.7rem;
  }

  .nav__center {
    align-items: center;
    display: flex;
    justify-content: space-between;
  }

  .nav__header {
    padding: 0;
  }

  .nav .social__icon-list {
    display: flex;
    gap: 0.7rem;
  }

  .nav__toggle {
    display: none;
  }
}

/* ==================================
  SERVICE SECTION
===================================== */

.service {
  background-color: var(--color-grey-10);
}

.service__icon {
  background-color: var(--color-primary-5);
  color: var(--color-primary-10);
  display: inline-block;
  font-size: 2rem;
  padding: 0.5rem;
  margin-block-end: 1.5rem;
}

.service__item {
  margin-block-end: 3rem;
  text-align: center;
}

.service__text {
  max-width: 20rem;
  margin-inline: auto;
}

.service__title {
  font-size: clamp(0.875rem, 0.7974rem + 0.3268vw, 1rem);
}

@media screen and (min-width: 576px) {
  .service__center {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  /* two columns */
  .service__item {
    flex: 0 0 calc(50% - 1rem);
    margin-block-end: 1rem;
  }
}

@media screen and (min-width: 992px) {
  /* three columns */
  .service__item {
    flex: 0 0 calc(33.33% - 1rem);
    margin-block-end: 1rem;
  }
}

@media screen and (min-width: 1170px) {
  /* the icons are moved to the left of the text */
  .service__item {
    display: flex;
    text-align: left;
  }

  .service__icon {
    align-self: flex-start;
    margin-inline-end: 1rem;
  }

  .service__title {
    margin-block-end: 0.5rem;
  }
}

/* ==================================
  SOCIAL ICONS
===================================== */
.social__icon {
  font-size: 2rem;
  transition: var(--transition);
}

.social__icon:focus,
.social__icon:hover {
  color: var(--color-primary-5);
}

.social__icon--light {
  color: var(--color-white);
}

.social__icon-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

@media screen and (min-width: 992px) {
  .social__icon--nav {
    color: var(--color-primary-5);
    font-size: 1.2rem;
    transition: var(--transition);
  }

  .social__icon--nav:focus,
  .social__icon--nav:hover {
    color: var(--color-primary-8);
  }
}