/* #region variables */
:root {
  --background-main: #fff;
  --background-secondary: #4d5ae5;
  --background-additional: #404bbf;
  --background-rare: #f4f4fd;
  --background-gradient: rgba(46, 47, 66, 0.7);
  --background-footer: #2e2f42;
  --background-backdrop: rgba(46, 47, 66, 0.4);
  --background-modal: #fcfcfc;
  --background-social: #31d0aa;
  --background-btn-close: rgba(0, 0, 0, 0.1);
  --color-main: #2e2f42;
  --color-secondary: #fff;
  --color-body: #434455;
  --color-rare: #f4f4fd;
  --color-minor: #404bbf;
  --color-logo: #4d5ae5;
  --color-border: #e7e9fc;
  --color-burger: #2f2f37;
  --color-form: #8e8f99;
  --font-weight-main: 700;
  --font-weight-additional: 500;
  --font-weight-rare: 400;
  --font-size-body: 16px;
  --font-size-main: 36px;
  --font-size-secondary: 20px;
  --font-size-additional: 12px;
  --font-size-rare: 18px;
  --font-size-minor: 56px;
  --letter-spacing-body: 0.02em;
  --letter-spacing-main: 0.03em;
  --letter-spacing-additional: 0.04em;
  --cubic-bezier: cubic-bezier(0.4, 0, 0.2, 1);
  --time: 250ms;
}

/* #endregion variables */

/* #region base styles */

body {
  font-family: 'Roboto', sans-serif;
  font-size: var(--font-size-body);
  line-height: 1.5;
  letter-spacing: var(--letter-spacing-body);
  color: var(--color-body);
  background-color: var(--background-body);
}

body:has(.backdrop.is-open) {
  overflow: hidden;
}

ul,
ol {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}

a {
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

.visually-hidden {
  position: absolute;
  white-space: nowrap;
  width: 1px;
  height: 1px;
  overflow: hidden;
  border: 0;
  padding: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(100%);
  margin: -1px;
}

.container {
  max-width: 320px;
  padding: 0 16px;
  margin: 0 auto;
}

@media screen and (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media screen and (min-width: 1158px) {
  .container {
    max-width: 1158px;
    padding: 0 15px;
  }
}

.section {
  padding: 96px 0;
}

@media only screen and (min-width: 1158px) {
  .section {
    padding: 120px 0;
  }
}

.logo {
  display: inline-block;
  font-family: 'Raleway', sans-serif;
  font-weight: var(--font-weight-main);
  font-size: var(--font-size-rare);
  line-height: 1.17;
  letter-spacing: var(--letter-spacing-main);
  text-transform: uppercase;
  color: var(--color-logo);
}

.social-list {
  display: flex;
  justify-content: space-between;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  fill: var(--color-rare);
  background-color: var(--background-secondary);
  border-radius: 50%;
}

.title-section {
  text-align: center;
  font-weight: var(--font-weight-main);
  font-size: var(--font-size-main);
  line-height: 1.11;
  color: var(--color-main);
}

.subtitle {
  margin-bottom: 8px;
  font-weight: var(--font-weight-additional);
  font-size: var(--font-size-secondary);
  line-height: 1.2;
  color: var(--color-main);
}

.button {
  font-family: inherit;
  font-weight: var(--font-weight-additional);
  font-size: var(--font-size-body);
  line-height: 1.5;
  letter-spacing: var(--letter-spacing-additional);
  color: var(--color-secondary);
  background-color: var(--background-secondary);
  box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  border: none;
  cursor: pointer;

  transition: background-color var(--time) var(--cubic-bezier);
}

.btn-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  color: var(--color-main);
}

.btn-close-icon {
  fill: currentColor;
}

/* #endregion base styles */

/* #region header */

.page-header {
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 6px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16), 0 2px 1px 0 rgba(46, 47, 66, 0.08);
}

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

.nav-list,
.contacts {
  display: none;
}

.header-logo .logo-dark {
  color: var(--color-main);
}

.burger-btn {
  padding: 16px 0;
  border: none;
  background-color: transparent;
}

.burger-icon {
  display: block;
  fill: var(--color-burger);
}

@media screen and (min-width: 768px) {
  .burger-btn {
    display: none;
  }

  .header-nav {
    display: flex;
    align-items: center;
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
  }

  .header-logo {
    padding: 24px 0;
    margin-right: 120px;
  }
}

@media screen and (min-width: 768px) {
  .nav-link {
    display: block;
    padding: 24px 0;
    font-weight: var(--font-weight-additional);
    color: var(--color-main);
    transition: color var(--time) var(--cubic-bezier);
  }

  .nav-link.current {
    position: relative;
  }

  .nav-link.current::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background-color: var(--background-additional);
  }

  .contacts {
    font-style: normal;
    display: block;
  }

  .contacts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .contacts-link {
    display: block;
    font-size: var(--font-size-additional);
    line-height: 1.17;
    letter-spacing: var(--letter-spacing-additional);
    color: var(--color-body);
    transition: color var(--time) var(--cubic-bezier);
  }
}

@media screen and (min-width: 1158px) {
  .header-logo {
    margin-right: 76px;
  }

  .contacts-list {
    flex-direction: row;
    align-items: center;
    gap: 40px;
  }

  .contacts-link {
    padding: 24px 0;
    font-size: var(--font-size-body);
    line-height: 1.5;
    letter-spacing: var(--letter-spacing-body);
  }

  .nav-link:hover,
  .nav-link:focus,
  .contacts-link:hover,
  .contacts-link:focus,
  .nav-link.current {
    color: var(--color-minor);
  }
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background-main);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition: opacity var(--time) var(--cubic-bezier),
    visibility var(--time) var(--cubic-bezier);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu-container {
  position: relative;
  padding-top: 72px;
  padding-bottom: 40px;

  display: flex;
  flex-direction: column;
  height: 100%;
}

.mobile-btn-close {
  background-color: transparent;
}

.mobile-menu-nav {
  margin-bottom: auto;
}

.mobile-menu-nav-item:not(:last-child) {
  margin-bottom: 40px;
}

.mobile-menu-nav-item {
  color: var(--color-main);
}

.mobile-menu-nav-item:first-child {
  color: var(--color-logo);
}

.mobile-menu-nav-link {
  font-weight: var(--font-weight-main);
  font-size: var(--font-size-main);
  line-height: 1.11;
  letter-spacing: 0.02em;
  color: inherit;
}

.mobile-menu-contacts {
  font-style: normal;
}

.mobile-menu-contacts-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
  color: inherit;
}

.mobile-menu-contacts-item:first-child {
  color: var(--color-logo);
}

.mobile-menu-contacts-link {
  font-weight: var(--font-weight-additional);
  font-size: var(--font-size-secondary);
  line-height: 1.2;
  letter-spacing: var(--letter-spacing-body);
  color: inherit;
  transition: color var(--time) var(--cubic-bezier);
}

@media screen and (min-width: 768px) {
  .mobile-menu {
    display: none;
  }
}

/* #endregion header */

/* #region hero section */

.hero {
  padding: 72px 0;
  text-align: center;
  background-color: var(--background-footer);
  background-image: linear-gradient(
      to right,
      var(--background-gradient),
      var(--background-gradient)
    ),
    url('../images/herobg-m.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

@media screen and (min-width: 320px) and (min-resolution: 192dpi) {
  .hero {
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
      ),
      url('../images/herobg-m@2x.jpg');
  }
}

@media screen and (min-width: 768px) {
  .hero {
    padding: 122px 0;
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
      ),
      url('../images/herobg-t.jpg');
  }
}

@media screen and (min-width: 768px) and (min-resolution: 192dpi) {
  .hero {
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
      ),
      url('../images/herobg-t@2x.jpg');
  }
}

@media screen and (min-width: 1158px) {
  .hero {
    padding: 188px 0;
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
      ),
      url('../images/herobg-d.jpg');
  }
}

@media screen and (min-width: 768px) and (min-resolution: 192dpi) {
  .hero {
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
      ),
      url('../images/herobg-d@2x.jpg');
  }
}

.hero-title {
  width: 216px;
  margin: 0 auto 72px;
  font-weight: var(--font-weight-main);
  font-size: var(--font-size-main);
  line-height: 1.11;
  color: var(--color-secondary);
}

.hero-button {
  display: block;
  margin: 0 auto;
  width: 169px;
  height: 56px;
  box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
}

@media screen and (min-width: 768px) {
  .hero-title {
    width: 496px;
    margin-bottom: 36px;
    font-size: var(--font-size-minor);
    line-height: 1.07;
  }
}

@media screen and (min-width: 1158px) {
  .hero-title {
    margin-bottom: 48px;
  }

  .hero-button:hover,
  .hero-button:focus {
    background-color: var(--background-additional);
    outline: none;
  }
}

/* #endregion hero section */

/* #region advantages section */

.advantages-list {
  font-weight: var(--font-weight-additional);
}

.advantages-item {
  margin-bottom: 72px;
}

.advantages-item:last-child {
  margin-bottom: 0;
}

.advantages-icon {
  display: none;
}

.advantages-subtitle {
  margin-bottom: 8px;
}

@media screen and (min-width: 768px) {
  .advantages-list {
    display: flex;
    flex-wrap: wrap;
    row-gap: 72px;
    column-gap: 24px;
  }

  .advantages-item {
    max-width: 356px;
    margin-bottom: 0;
  }

  .advantages-subtitle {
    text-align: start;
  }
}

@media screen and (min-width: 1158px) {
  .advantages-list {
    flex-wrap: nowrap;
  }

  .advantages-icon {
    display: flex;
    margin-bottom: 8px;
    justify-content: center;
    align-items: center;
    height: 112px;
    border-radius: 4px;
    background-color: var(--background-rare);
  }

  .advantages-subtitle {
    margin-bottom: 8px;
    font-weight: var(--font-weight-additional);
    font-size: var(--font-size-secondary);
    line-height: 1.2;
  }

  .advantages-text {
    font-weight: var(--font-weight-rare);
  }
}

/* #endregion advantages section */

/* #region our team section */

.team {
  background-color: var(--background-rare);
}

.team-item {
  max-width: 264px;
  margin: 0 auto 72px;
  text-align: center;
  border-radius: 0 0 4px 4px;
  box-shadow: 0 2px 1px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16), 0 1px 6px 0 rgba(46, 47, 66, 0.08);
  background-color: var(--background-main);
}

.team-item:last-child {
  margin-bottom: 0px;
}

.team-title {
  margin-bottom: 72px;
}

.team-content {
  padding: 32px 16px;
}

.team-text {
  margin-bottom: 8px;
}

@media screen and (min-width: 768px) {
  .team-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 24px;
    row-gap: 64px;
  }

  .team-item {
    margin: 0;
  }
}

@media screen and (min-width: 1158px) {
  .team-list {
    flex-wrap: nowrap;
    gap: 24px;
  }

  .social-link {
    transition: background-color var(--time) var(--cubic-bezier);
  }

  .social-link:hover,
  .social-link:focus {
    background-color: var(--background-additional);
    outline: none;
  }
}

/* #endregion our team section */

/* #region portfolio section*/

.title-portfolio {
  margin-bottom: 72px;
}

.portfolio-item {
  outline: none;
  box-shadow: 0 2px 1px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16), 0 1px 6px 0 rgba(46, 47, 66, 0.08);
}

.portfolio-item {
  margin-bottom: 48px;
}

.portfolio-item:last-child {
  margin-bottom: 0;
}

.portfolio-wrapper {
  position: relative;
  overflow: hidden;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: var(--color-rare);
  transform: translateY(100%);
  background-color: var(--background-secondary);
  padding: 40px 32px;
  transition: transform var(--time) var(--cubic-bezier);
}

.portfolio-card {
  border: 1px solid var(--color-border);
  border-top: none;
  padding: 32px 16px;
}

@media screen and (min-width: 768px) {
  .portfolio-list {
    display: flex;
    flex-wrap: wrap;
    row-gap: 72px;
    column-gap: 24px;
    justify-content: center;
  }

  .portfolio-item {
    max-width: 356px;
  }

  .portfolio-item {
    margin-bottom: 0;
  }
}

@media screen and (min-width: 1158px) {
  .portfolio-list {
    display: flex;
    flex-wrap: wrap;
    row-gap: 40px;
    column-gap: 24px;
  }

  .portfolio-item {
    max-width: 360px;
    box-shadow: none;
  }

  .portfolio-item:hover .overlay {
    transform: translateY(0);
  }

  .portfolio-item:hover,
  .portfolio-item:focus {
    outline: none;
    box-shadow: 0 2px 1px 0 rgba(46, 47, 66, 0.08),
      0 1px 1px 0 rgba(46, 47, 66, 0.16), 0 1px 6px 0 rgba(46, 47, 66, 0.08);
  }
}

/* #endregion portfolio section*/

/* #region footer */

.page-footer {
  background-color: var(--background-footer);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  row-gap: 72px;
  text-align: center;
}

.footer-logo {
  margin-bottom: 16px;
}

.footer-logo .logo-light,
.info-text {
  color: var(--color-rare);
}

.info-text {
  text-align: start;
}

.social-text,
.subscription-text {
  color: var(--color-secondary);
  font-weight: var(--font-weight-additional);
  margin-bottom: 16px;
}

.footer-social-list {
  gap: 16px;
}

.subscription-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.subs-input {
  width: 288px;
  height: 40px;
  border: 1px solid var(--color-secondary);
  box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  opacity: 0.3;
  padding: 8px 16px;
  background-color: transparent;
  font-size: var(--font-size-additional);
  line-height: 2;
  letter-spacing: var(--letter-spacing-additional);
  color: var(--color-secondary);
  outline: none;
}

.subs-input::placeholder {
  color: var(--color-secondary);
  opacity: 0.6;
}

.subs-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 165px;
  height: 40px;
  box-shadow: none;
}

.icon-send {
  fill: currentColor;
  margin-left: 16px;
}

@media screen and (min-width: 768px) {
  .footer-container {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: start;
    text-align: left;
    column-gap: 24px;
    padding-left: 108px;
  }

  .info-logo {
    width: 264px;
  }

  .footer-social {
    width: 208px;
  }

  .subscription-form {
    display: flex;
    flex-direction: row;
    gap: 24px;
  }

  .subs-input {
    width: 264px;
  }
}

@media screen and (min-width: 1158px) {
  .page-footer {
    padding: 100px 0;
  }

  .footer-container {
    flex-wrap: nowrap;
    gap: 80px;
    padding-left: 15px;
  }

  .info-logo {
    margin-right: 40px;
  }

  .social-link {
    transition: background-color var(--time) var(--cubic-bezier);
  }

  .footer-social .social-link:hover,
  .footer-social .social-link:focus {
    background-color: var(--background-social);
    outline: none;
  }

  .subs-input {
    opacity: 1;
    transition: border-color var(--time) var(--cubic-bezier);
  }

  .subs-input:focus {
    border-color: var(--background-social);
  }

  .subs-button {
    transition: background-color var(--time) var(--cubic-bezier);
  }

  .subs-button:hover,
  .subs-button:focus {
    background-color: var(--background-social);
    outline: none;
  }
}

/* #endregion footer */

/* #region backdrop */

.backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background-color: var(--background-backdrop);
  transition: opacity var(--time) var(--cubic-bezier),
    visibility var(--time) var(--cubic-bezier);
}

.backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: initial;
}

.modal {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -70%);
  width: 288px;
  min-height: 623px;
  padding: 72px 16px 24px;
  background-color: var(--background-modal);
  box-shadow: 0 1px 1px 0 rgba(0, 0, 0, 0.14), 0 1px 3px 0 rgba(0, 0, 0, 0.12),
    0 2px 1px 0 rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  opacity: 0;
  transition: opacity var(--time) var(--cubic-bezier),
    transform var(--time) var(--cubic-bezier);
  transition-delay: 250ms;
}

.backdrop.is-open .modal {
  opacity: 1;
  transform: translate(-50%, -50%) scale(0.9);
}

.backdrop-btn {
  background-color: var(--background-btn-close);
  transition: background-color var(--time) var(--cubic-bezier),
    color var(--time) var(--cubic-bezier);
}

.modal-text {
  margin-bottom: 16px;
  font-weight: var(--font-weight-additional);
  text-align: center;
  color: var(--color-main);
}

.entry-field {
  margin-bottom: 8px;
}

.modal-label {
  display: block;
  margin-bottom: 4px;
  font-size: var(--font-size-additional);
}

.modal-wrapper {
  position: relative;
}

.modal-label,
.modal-input,
.modal-comment {
  line-height: 1.17;
  letter-spacing: var(--letter-spacing-additional);
  color: var(--color-form);
}

.modal-input,
.modal-comment {
  display: block;
  width: 100%;
  height: 40px;
  font-size: var(--font-size-rare);
  border: 1px solid rgba(46, 47, 66, 0.4);
  border-radius: 4px;
  outline: transparent;
  transition: border-color var(--time) var(--cubic-bezier);
}

.modal-input {
  padding-left: 38px;
}

.modal-comment {
  padding: 8px 16px;
  height: 120px;
  resize: none;
}

.modal-comment::placeholder {
  font-size: var(--font-size-additional);
  opacity: 0.5;
}

.modal-input:focus,
.modal-comment:focus {
  border-color: var(--color-logo);
}

.entry-field-comment {
  margin-bottom: 16px;
}

.modal-icon {
  position: absolute;
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
  fill: var(--color-main);
  transition: fill var(--time) var(--cubic-bezier);
}

.modal-input:focus + .modal-icon {
  fill: var(--color-logo);
}

@media screen and (min-width: 768px) {
  .modal {
    width: 408px;
    min-height: 584px;
  }
}

@media screen and (min-width: 1158px) {
  .backdrop-btn:hover,
  .backdrop-btn:focus {
    background-color: var(--background-additional);
    color: var(--color-secondary);
    border: none;
  }
}

.agree {
  margin-bottom: 24px;
}

.agree-label {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-additional);
  line-height: 1.17;
  letter-spacing: var(--letter-spacing-additional);
  color: var(--color-form);
}

.agree-checkbox {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 16px;
  height: 16px;
  margin-right: 8px;
  border-radius: 2px;
  border: 1px solid rgba(46, 47, 66, 0.4);
  color: transparent;
  transition: background-color var(--time) var(--cubic-bezier),
    border-color var(--time) var(--cubic-bezier);
  cursor: pointer;
}

.agree-input:checked + .agree-label > .agree-checkbox {
  border-radius: 2px;
  border: 1px solid var(--color-minor);
  background-color: var(--background-additional);
  color: var(--color-rare);
}

.agree-text {
  display: block;
  min-width: 231px;
}

.agree-link {
  display: block;
  line-height: 1.33;
  text-decoration: underline;
  text-decoration-skip-ink: none;
  color: var(--color-logo);
}

.agree-icon {
  fill: currentColor;
}

.send-button {
  display: block;
  margin: 0 auto;
  width: 169px;
  height: 56px;
  margin: 0 auto;
  transition: background-color var(--time) var(--cubic-bezier);
}

@media screen and (min-width: 1158px) {
  .send-button:hover,
  .send-button:focus {
    background-color: var(--background-additional);
    outline: none;
  }
}
/* #endregion backdrop */