/* Custom Properties */
:root {
  /* Colors */
  --primary-color-400: #df5743;
  --primary-color-500: #ec5242;
  --primary-color-800: #f91002;
  --dark-blue-800: #272a31;
  --gray-400: #f7f7f7;
  --gray-500: #d3d3d3;
  --gray-550: #767676;
  --gray-600: #626060;
  --gray-700: #393939;
  --gray-750: #414246;
  --gray-800: #3e3e3e;
  --gray-900: #2e2e2e;
  --white: #fff;
  --off-white: #fdfeff;
  --black: #000;

  /* Fonts */
  --font-lato: 'Lato', sans-serif;

  /* Font Sizes */

  --fs-100: 0.75rem;
  --fs-200: 0.8125rem;
  --fs-300: 0.9375rem;
  --fs-400: 1rem;
  --fs-500: 1.0625rem;
  --fs-600: 1.125rem;
  --fs-700: 1.25rem;
  --fs-750: 1.5rem;
  --fs-775: 1.75rem;
  --fs-800: 2rem;
  --fs-900: 2.5rem;
  --fs-925: 3rem;
  --fs-950: 4.5rem;
}

/* ============================================================ */

/* General Styles */
body {
  font-family: var(--font-lato);
}

.container {
  min-width: 23rem;
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 8px;
}

.small-underline {
  position: relative;
  margin: 1rem auto;
  padding: 0.75rem;
}

.small-underline::before {
  position: absolute;
  content: '';
  display: block;
  width: 2rem;
  bottom: 0;
  left: 50%;
  transform: translateX(-1rem);
  border-bottom: 0.125rem solid var(--primary-color-500);
}

.divider {
  width: 1.5rem;
  height: 1px;
  border-bottom: 2px solid var(--gray-500);
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10;
  background-color: rgba(39, 35, 35, 0.522);
  backdrop-filter: blur(10px);
  mix-blend-mode: multiply;
}

/* ============================================================ */

/* Button Styles */

/* Primary button */
.primary-btn {
  color: var(--primary-color-400);
  background-color: var(--off-white);
  min-width: max-content;
  padding: 0.75rem 1.25rem;
  font-size: var(--fs-700);
  font-weight: 600;
  border: 0.25rem solid var(--primary-color-400);
  cursor: pointer;
  transition: all 250ms ease-in-out;
}

.primary-btn:disabled {
  color: var(--gray-500);
  border: 0.25rem solid var(--gray-500);
  cursor: not-allowed;
}

.primary-btn:hover:enabled {
  background-color: var(--primary-color-400);
  color: var(--white);
  border: 0.25rem solid var(--white);
}

.primary-btn:active:enabled {
  transform: scale(1.03);
}

/* Secondary button */
.secondary-btn {
  text-transform: uppercase;
  color: var(--gray-7s00);
  background-color: var(--off-white);
  min-width: max-content;
  padding: 0.5rem 8rem;
  font-size: var(--fs-500);
  border: 0.1rem solid var(--gray-500);
  cursor: pointer;
  transition: all 250ms ease-in-out;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.secondary-btn:disabled {
  color: var(--gray-500);
  border: 0.25rem solid var(--gray-500);
  cursor: not-allowed;
}

.secondary-btn:hover:enabled {
  transform: scale(1.02);
  box-shadow: 0.0625rem 0.625rem 1.4375rem 0 rgba(0, 0, 0, 0.1);
}

.secondary-btn:active:enabled {
  transform: translateY(0.1rem);
}

/* Join button */
.join-btn {
  margin: 0 auto;
  margin-top: 4rem;
  display: block;
  color: var(--off-white);
  background: var(--primary-color-400);
}

.join-btn:disabled {
  background: var(--gray-400);
}

.join-btn:hover:enabled {
  background-color: var(--off-white);
  color: var(--primary-color-400);
}

/* ============================================================ */

/* Header Styles */
.nav-bar {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  position: fixed;
  padding: 1rem;
  left: 0;
  top: 0;
  right: 0;
  z-index: 20;
}

.nav-bar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: fixed;
  margin: 0;
  padding: 1rem;
  padding-top: 4rem;
  padding-bottom: 3rem;
  left: 0;
  top: 0;
  bottom: 0;
  height: 100vh;
  width: 26rem;
  z-index: 20;
  background:
    linear-gradient(147deg, #242424 10%, transparent 40%, #201f1f 70%),
    url(../assets/images/mobile-nav-bg.png);
  background-repeat: no-repeat;
  background-position: top;
  background-color: var(--gray-800);
  color: var(--white);
  border-bottom-right-radius: 0.75rem;
  border-top-right-radius: 0.75rem;
  transition: all 300ms ease-in;
  overflow-y: auto;
}

/*  Custom scrollbar for mobile menu */
.nav-bar-wrapper::-webkit-scrollbar {
  width: 0.5rem;
  margin-right: 2rem;
  height: 90%;
}

.nav-bar-wrapper::-webkit-scrollbar-track {
  background: var(--gray-400);
}

.nav-bar-wrapper::-webkit-scrollbar-thumb {
  background: var(--gray-750);
}

.nav-bar-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color-400);
}

.nav-bar-wrapper[data-visible='false'] {
  opacity: 0;
  transform: translateX(-100%);
}

.nav-bar-wrapper[data-visible='true'] {
  opacity: 1;
  transform: translateX(0);
}

.nav-bar__mobile-menu-toggle-button {
  height: 1.25rem;
  z-index: 50;
  transition: transform 100ms ease;
}

.nav-bar__mobile-menu-toggle-button:hover {
  cursor: pointer;
  transform: scale(1.1);
}

.top-nav {
  order: 3;
  padding-top: 2rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--gray-600);
  font-size: var(--fs-700);
}

.top-nav__links-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.top-nav__link {
  color: var(--white);
  text-decoration: none;
}

.top-nav__link:hover {
  text-decoration: underline;
  text-underline-offset: 0.5rem;
}

.top-nav__social-links {
  display: flex;
  align-items: center;
  order: 2;
  gap: 1rem;
  padding-top: 2rem;
}

.top-nav__social-link {
  transition: all 100ms ease-in;
}

.top-nav__social-link:hover {
  transform: scale(1.1) rotateZ(-7deg);
}

.main-nav {
  color: var(--white);
  flex-grow: 1;
}

.main-nav > .container {
  height: 100%;
}

.main-nav__wrapper {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.main-nav__logo-wrapper {
  margin-top: auto;
  order: 5;
}

.main-nav__logo {
  height: 4rem;
}

.main-nav__links-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
  flex-grow: 1;
  margin: 0;
  padding: 0;
}

.main-nav__links-wrapper button {
  display: inline-block;
  margin-top: 1.75rem;
  margin-bottom: 3rem;
}

.main-nav__link {
  text-decoration: none;
  color: var(--white);
  font-size: var(--fs-700);
}

.main-nav__link.active {
  font-weight: 600;
  color: var(--primary-color-500);
}

.main-nav__link:hover {
  text-decoration: underline;
  text-underline-offset: 0.5rem;
}

/* Header Styles (Desktop) */

@media (min-width: 768px) {
  .nav-bar {
    position: static;
    padding: 0;
    gap: 0;
  }

  .nav-bar-wrapper {
    position: static;
    flex-direction: column-reverse;
    gap: 0;
    width: 100vw;
    height: auto;
    margin: 0;
    border-radius: 0;
    background-image: none;
    padding: 0;
    transition: none;
  }

  .nav-bar__mobile-menu-toggle-button {
    display: none;
  }

  .top-nav {
    background-color: var(--gray-800);
    border: none;
    padding: 0;
  }

  .top-nav__links-wrapper {
    flex-direction: row;
    justify-content: flex-end;
    gap: 2rem;
    padding: 0.5rem 0;
  }

  .top-nav__link {
    font-size: var(--fs-500);
  }

  .top-nav__social-links {
    gap: 1.5rem;
    padding-top: 0;
    order: 0;
  }

  .main-nav {
    padding: 0.75rem 0;
    background: var(--white);
    box-shadow: 0 25px 40px 0 rgba(0, 0, 0, 0.08);
  }

  .main-nav__wrapper {
    flex-direction: row-reverse;
    height: 100%;
  }

  .main-nav__logo {
    order: 0;
    margin-right: auto;
  }

  .main-nav__links-wrapper {
    order: 2;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
  }

  .main-nav__links-wrapper button {
    margin: 0;
  }

  .main-nav__link {
    color: var(--gray-550);
    font-size: var(--fs-600);
  }
}

@media (min-width: 840px) {
  .main-nav__links-wrapper {
    gap: 1rem;
  }
}

@media (min-width: 920px) {
  .main-nav__links-wrapper {
    gap: 1.75rem;
  }
}

/* ============================================================ */

/* Hero Section Styles */
.hero {
  background-image:
    url("../assets/bg-patterns/1.png"),
    url("../assets/bg-patterns/2.png"),
    url("../assets/bg-patterns/5.png"),
    url("../assets/bg-patterns/6.png"),
    url('../assets/images/hero-bg.png');
  background-repeat: no-repeat;
  background-position: 14% 50%, 84% 94%, 4% 98%, 8% 14%, top center;
  background-size: 30px, 50px, 30px, 30px, contain;
  background-color: var(--gray-400);
  text-align: center;
}

.hero__wrapper,
.about__wrapper {
  padding: 10rem 1.5rem 4rem;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.hero__page-headline,
.about__page-headline {
  font-size: var(--fs-925);
  line-height: 3rem;
  font-weight: 900;
  text-align: left;
  color: transparent;
  text-transform: uppercase;
  order: 2;
  background-clip: border-box;
  -webkit-background-clip: text;
  background-image: url('../assets/images/orangebg.jpg');
  background-size: cover;
  max-width: 50rem;
}

.hero__tagline,
.about__tagline {
  color: var(--primary-color-800);
  font-size: var(--fs-750);
  order: 1;
  margin-bottom: -1.5rem;
  margin-top: 3rem;
}

.hero__intro,
.about__intro {
  position: relative;
  order: 3;
  background-color: var(--white);
  color: var(--gray-700);
  line-height: 25.6px;
  padding: 1rem;
  max-width: 50rem;
}

.hero__intro::after {
  content: '';
  position: absolute;
  z-index: -1;
  width: 6rem;
  height: 6rem;
  right: -1.5rem;
  top: -3rem;
  background-image: url('../assets/bg-patterns/7.png');
  background-size: contain;
  overflow: hidden;
}

.hero__summit-info {
  width: 100%;
  max-width: 800px;
  order: 4;
  text-align: left;
}

.hero__summit-info__dates {
  color: var(--gray-600);
  font-size: var(--fs-775);
  font-weight: 900;
}

.hero__summit-info__location {
  color: var(--gray-600);
  font-size: var(--fs-500);
}

.hero__contact-us {
  order: 4;
  line-height: 25.6px;
}

.hero__email-addr,
.about__email-addr {
  font-weight: 900;
  text-decoration: underline;
  text-underline-offset: 0.25rem;
  cursor: pointer;
}

/* Hero Section Styles (Desktop) */
@media (min-width: 768px) {
  .hero {
    text-align: left;
    background-image:
      url("../assets/bg-patterns/1.png"),
      url("../assets/bg-patterns/2.png"),
      url("../assets/bg-patterns/5.png"),
      url("../assets/bg-patterns/6.png"),
      url('../assets/images/hero-bg.png');
    background-position: 0% 29%, 84% 90%, 96% 58%, 8% 94%, top center;
    background-size: 40px, 80px, 30px, 40px, contain;
  }

  .hero__wrapper {
    padding-bottom: 6rem;
  }

  .hero__page-headline {
    font-size: var(--fs-950);
    line-height: 4rem;
  }

  .hero__tagline {
    font-size: var(--fs-800);
  }

  .hero__summit-info__dates {
    font-size: var(--fs-800);
  }

  .hero__intro,
  .about__intro {
    padding: 2rem;
    font-size: var(--fs-600);
  }

  .hero__contact-us {
    font-size: var(--fs-600);
  }
}

/* ============================================================ */

/* Main Program Section Styles */
.main-program {
  background-color: var(--dark-blue-800);
  background-image: url('../assets/decorative-elements/cross-pattern-1.svg');
  background-size: 3.5vw;
  color: var(--off-white);
  padding: 4rem 0;
}

.main-program__headline {
  font-size: var(--fs-700);
  text-align: center;
}

.main-program__cards-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin: 0;
  margin-top: 2rem;
  padding: 0;
}

.main-program__card {
  flex-grow: 1;
  display: flex;
  gap: 16px;
  align-items: center;
  text-align: center;
  padding: 0.625rem;
  border: 2px solid transparent;
  transition: all 300ms ease-in-out;
  background: #3c3f4665;
  width: 95%;
  min-width: 256px;
  max-width: 448px;
}

.main-program__card:hover {
  border: 2px solid var(--white);
  transform: scale(1.03);
}

.main-program__card__icon {
  width: 3rem;
}

.main_program__card__header {
  color: var(--primary-color-400);
  text-align: left;
  min-width: 80px;
  max-width: 80px;
}

.main-program__card__description {
  text-align: left;
}

/* Main Program Section Styles (Desktop) */
@media (min-width: 40rem) {
  .main-program {
    background-size: 2vw;
    padding: 6rem 2rem;
  }

  .main-program__headline {
    margin-bottom: 3rem;
    padding-top: 0;
    margin-top: 0;
  }

  .main-program__cards-wrapper {
    gap: 1.25rem;
  }

  .main-program__card {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 192px;
    padding: 16px;
  }

  .main-program__card__icon {
    height: 3rem;
    width: auto;
  }

  .main_program__card__header {
    text-align: center;
  }

  .main-program__card__description {
    text-align: center;
  }
}

/* ============================================================ */

/* Speakers Section Styles */
.speakers {
  background-color: var(--gray-400);
  color: var(--gray-700);
  padding: 4rem 0;
}

.speakers__headline {
  font-size: var(--fs-700);
  text-align: center;
  margin-bottom: 48px;
}

.speakers__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  margin: 0;
  padding: 0;
}

.speakers__cards-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.speakers__card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  border: 0.0625rem solid transparent;
  width: 95%;
  cursor: pointer;
  transition: all 300ms ease-in-out;
}

.speakers__card:hover {
  border: 0.0625rem solid var(--primary-color-500);
  box-shadow: 0.0625rem 0.625rem 1.4375rem 0 rgba(0, 0, 0, 0.1);
}

.speakers__speaker-photo {
  width: 25%;
  margin-top: 12px;
  margin-left: 12px;
  position: relative;
  z-index: 2;
}

.speakers__speaker-photo::before {
  content: '';
  position: absolute;
  display: block;
  width: 50%;
  height: 50%;
  top: -12px;
  left: -12px;
  z-index: -1;
  background-image: url('../assets/decorative-elements/checkboard-dark.svg');
  background-repeat: no-repeat;
  background-size: contain;
}

.speakers__card__details {
  width: 75%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.speakers_speaker-name {
  font-size: var(--fs-700);
  margin-top: -8px;
}

.speakers__speaker-title {
  color: var(--primary-color-500);
  font-style: italic;
  font-size: var(--fs-200);
}

.speakers__speaker-intro {
  line-height: 22.4px;
  font-size: var(--fs-300);
}

.see-fewer-speakers-arrow {
  transform: rotateZ(180deg);
}

/* Speakers Section Styles (Tablet) */
@media (min-width: 40.5rem) {
  .speakers__cards-wrapper {
    gap: 8px;
  }

  .speakers__card {
    width: 30rem;
  }

  .speakers__card:nth-child(odd) {
    align-self: flex-end;
  }

  .speakers__card:nth-child(even) {
    align-self: flex-start;
    flex-direction: row-reverse;
  }
}

/* Speakers Section Styles (Desktop) */
@media (min-width: 48rem) {
  .speakers__headline {
    margin-top: 2rem;
  }

  .speakers__cards-wrapper {
    flex-direction: row;
    gap: 16px;
    margin-bottom: 2rem;
    max-width: 74rem;
  }

  .speakers__card {
    width: 22rem;
  }

  .speakers__card:nth-child(even) {
    flex-direction: row;
  }

  .speakers__speaker-photo::before {
    background-image: url('../assets/decorative-elements/checkboard-light.svg');
  }
}

@media (min-width: 68rem) {
  .speakers__card {
    width: 33rem;
  }
}

@media (min-width: 76rem) {
  .speakers__card {
    width: 36rem;
  }
}

/* ============================================================ */

/* Partners Section Styles */
.partners {
  background-color: var(--gray-750);
  padding: 3rem 0;
}

.home-page-partners {
  display: none;
}

.partners__headline {
  color: var(--off-white);
  margin-bottom: 2rem;
  text-align: center;
}

.partners__cards-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 24px 16px;
  gap: 48px;
  list-style: none;
}

.partners__logo {
  transition: transform 150ms ease-in;
}

.partners__logo:hover {
  transform: scale(1.06);
}

@media (min-width: 48rem) {
  .home-page-partners {
    display: block;
  }

  .about-page-partners {
    display: none;
  }
}

/* ============================================================ */

/* Footer Styles */
.footer {
  background-color: var(--gray-400);
  color: var(--gray-800);
  padding: 4rem 0;
}

.home-page-footer {
  display: none;
}

.footer__wrapper {
  display: flex;
  align-items: center;
  text-align: center;
  gap: 40px;
}

.footer__logo {
  height: 80px;
  min-width: 160px;
  width: max-content;
}

.footer__copyright {
  font-weight: 600;
  max-width: 35rem;
}

.footer__disclaimer {
  max-width: 35rem;
  margin-top: 16px;
  font-size: var(--fs-200);
}

.footer__github-link {
  color: var(--primary-color-500);
  text-decoration: none;
}

.footer__github-link:hover {
  color: var(--primary-color-800);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Footer Styles (Desktop) */
@media (min-width: 48rem) {
  .footer__wrapper {
    text-align: left;
    justify-content: center;
  }

  .home-page-footer {
    display: block;
  }

  .about-page-footer {
    background-color: var(--gray-800);
    color: var(--gray-400);
  }
}

/* About page styles */
.about {
  text-align: center;
  background-color: var(--gray-400);
}

.about__wrapper {
  align-items: center;
  padding-top: 5rem;
  padding-bottom: 5rem;
  background-image:
    url("../assets/bg-patterns/10.png"),
    url("../assets/bg-patterns/11.png"),
    url("../assets/bg-patterns/12.png"),
    url("../assets/bg-patterns/12.png"),
    url("../assets/bg-patterns/7.png");
  background-repeat: no-repeat;
  background-size: 60px, 80px, 80px, 96px, 100px;
  background-position: 18% 3%, 96% 8%, -6% 25%, 100% 40%, 17% 40%;
}

.about__page-headline {
  background: none;
  color: var(--primary-color-800);
  padding-bottom: 2rem;
  font-size: var(--fs-925);
  text-align: center;
}

.about__tagline {
  margin-bottom: -3rem;
}

.about__contact-us {
  order: 3;
}

/* About page logo competition section styles */
.logo-competition {
  background: var(--white);
  padding: 5rem 0;
  text-align: center;
  max-width: 50rem;
  margin: 0 auto;
}

.logo-competition__headline {
  margin-bottom: 2rem;
}

.logo-competition__paragraph {
  padding: 1rem;
}

.logo-competition__paragraph + p {
  display: none;
}

.logo-competition__logo-wrapper {
  margin: 2rem auto;
  padding: 2rem;
  max-width: 36rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gray-500);
}

.logo-competition__logo {
  width: 20rem;
}

/* About page logo competition section styles (Desktop) */
@media (min-width: 768px) {
  .logo-competition {
    padding: 4rem 0;
  }

  .logo-competition__paragraph + p {
    display: block;
  }
}

/* Past summits section styles */
.past-summits {
  background: var(--white);
  padding: 5rem 0;
  text-align: center;
  border-top: 1px solid var(--gray-400);
}

.past-summits__headline {
  margin-bottom: 3rem;
}

.past-summits__paragraph {
  margin-bottom: 3rem;
}

.past-summits__cards-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  padding: 0;
}

.past-summits__card {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 28rem;
  overflow: hidden;
  transition: transform 500ms ease-in;
}

.past-summits__card:hover {
  transform: scale(1.02);
}

.past-summits__card__body {
  position: absolute;
  z-index: 20;
  height: 100%;
  transition: transform 500ms ease-in;
  color: white;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.past-summits__card__img {
  filter: sepia(100%) saturate(400%) brightness(55%) hue-rotate(-60deg);
  transform: scale(1.05);
  transition: transform 600ms ease-in-out, filter 500ms ease-in-out;
}

.past-summits__card__header {
  font-size: var(--fs-800);
}

.past-summits__card__header,
.past-summits__card__description {
  text-align: center;
  transition: all 400ms ease-in;
}

.past-summits__card__btn {
  padding: 0.5rem 1.5rem;
  font-weight: 600;
  transition: all 500ms ease;
  border: 2px solid transparent;
  color: var(--primary-color-400);
  outline: none;
  opacity: 0;
}

.past-summits__card__btn:hover {
  background-color: var(--primary-color-400);
  border: 2px solid var(--primary-color-400);
  transform: scale(1.04);
  color: white;
}

.past-summits__card__btn:active {
  transform: translateY(3px);
}

.past-summits__card:hover .past-summits__card__img {
  transform: none;
  filter: none;
}

.past-summits__card:hover .past-summits__card__header,
.past-summits__card:hover .past-summits__card__description {
  transform: translateY(-30px);
  opacity: 0;
}

.past-summits__card:hover .past-summits__card__btn {
  opacity: 1;
}

/* Past summits section styles (Desktop) */
@media (min-width: 768px) {
  .past-summits__cards-wrapper {
    flex-direction: row;
    gap: 1.5rem;
  }
}