@charset "UTF-8";
/* Step -2: 12.5px → 12.8px */
/* Step -1: 15px → 16px */
/* Step 0: 18px → 20px */
/* Step 1: 21.6px → 25px */
/* Step 2: 25.92px → 31.25px */
/* Step 3: 31.104px → 39.0625px */
/* Step 4: 37.3248px → 48.8281px */
/* Step 5: 44.7898px → 61.0352px */
/* Step 6: 53.7477px → 76.2939px */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

@font-face {
  font-family: Aptos; /* set name */
  src: url(../font/Aptos.ttf); /* url of the font */
}
@font-face {
  font-family: Aptos-Light; /* set name */
  src: url(../font/Aptos-Light.ttf); /* url of the font */
}
main {
  margin: 1rem;
}

h1,
h2,
h3,
p,
a,
ul,
li {
  font-family: Aptos;
  color: #ffffff;
  max-inline-size: none;
}

h1 {
  font-size: clamp(3.3592rem, 3.034rem + 1.4453vw, 4.7684rem);
}

h2 {
  font-size: clamp(2.3328rem, 2.1669rem + 0.7374vw, 3.0518rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.944rem, 1.8292rem + 0.5102vw, 2.4414rem);
}

p,
a,
ul,
li {
  font-size: clamp(1.125rem, 1.0962rem + 0.1282vw, 1.15rem);
  max-inline-size: 60ch;
  line-height: 1.8rem;
}

form,
textarea,
input,
label {
  font-family: Aptos;
}

p {
  font-weight: 400;
}

.font--extralight {
  font-family: Aptos-Light;
  font-weight: 200;
}
.font--light {
  font-family: Aptos-Light;
  font-weight: 300;
}
.font--medium {
  font-weight: 500;
}

body {
  background-color: #040a16;
}

/* header */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  padding: 1.5rem 3rem;
  z-index: 10;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.7) 65%, rgba(0, 0, 0, 0) 100%);
}
.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header__logo {
  z-index: 1;
}
.header__logo img {
  display: block;
  width: 102px;
  height: auto;
}
.header__toggle {
  display: none;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.header__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #ffffff;
  margin: 4px 0;
}
.header--open .nav {
  display: flex;
}

/* nav */
.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__link {
  color: #ffffff;
  text-decoration: none;
  font-size: clamp(0.9375rem, 0.9231rem + 0.0641vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.03em;
}
.nav__link:hover {
  opacity: 0.8;
}
.nav__link--outline {
  padding: 0.35rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.7);
}
.nav__link--outline:hover {
  background-color: rgba(255, 255, 255, 0.08);
}
.nav__icon img {
  display: block;
  width: 20px;
  height: 20px;
  cursor: pointer;
}
.nav__icon img:hover {
  opacity: 0.8;
}

/* ------- MOBIL: burger-meny ------- */
@media (max-width: 768px) {
  .nav {
    position: absolute;
    inset-inline: 0;
    inset-block-start: 100%;
    padding: 4rem 1.2rem 1.2rem;
    display: none;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(8px) saturate(140%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgb(0, 0, 0) 12%, rgb(0, 0, 0) 88%, rgba(0, 0, 0, 0) 100%);
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgb(0, 0, 0) 12%, rgb(0, 0, 0) 88%, rgba(0, 0, 0, 0) 100%);
  }
  .nav__list {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
  }
  .nav__list--open {
    margin-top: -65px;
    display: block;
  }
  .nav__link {
    font-size: clamp(1.125rem, 1.0962rem + 0.1282vw, 1.15rem);
  }
  .nav__link--outline {
    padding: 0.25rem 0.8rem;
  }
  .nav__icon img {
    width: 25px;
    height: 25px;
  }
  .header {
    padding: 1rem 1.2rem;
    z-index: 1;
  }
  .header__toggle {
    display: block;
    z-index: 1;
  }
  .header--open {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.7) 65%, rgba(0, 0, 0, 0.4) 100%);
  }
}
.footer {
  color: #ffffff;
  padding: 3rem 2rem 2rem;
}
.footer__divider {
  width: 100%;
  height: 3px;
  background-color: #ffffff;
  margin-bottom: 3rem;
}
.footer__container {
  max-width: 1200px;
  margin: 0 auto;
}
.footer__logo {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
}
.footer__logo img {
  height: auto;
  width: 26vw;
}
.footer__content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.footer__section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.footer__title {
  font-weight: 500;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}
.footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer__link {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer__link--phone {
  margin-top: 0.5rem;
}
.footer__link--phone:hover {
  color: rgba(255, 255, 255, 0.7);
}
.footer__link:hover {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: underline;
}
.footer__email {
  text-decoration: underline;
}
.footer__address {
  font-style: normal;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer__address p {
  margin: 0;
}
.footer__socials {
  grid-column: 1/-1;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.footer__social-link {
  color: #ffffff;
  font-size: 1.5rem;
  transition: opacity 0.3s ease;
}
.footer__social-link:hover {
  opacity: 0.7;
}
.footer__social-link img {
  width: 28px;
  height: 28px;
}

@media (max-width: 768px) {
  .footer {
    padding: 2rem 1.5rem 1.5rem;
  }
  .footer__content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer__logo {
    margin-bottom: 2rem;
  }
}
.btn__index {
  display: inline-block;
  padding: 0.6rem 1.06rem;
  margin-top: 1rem;
  color: #ffffff;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 10px;
  font-size: clamp(0.9375rem, 0.9231rem + 0.0641vw, 1rem);
  line-height: normal;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
}
@media (max-width: 600px) {
  .btn__index {
    display: flex;
    flex-direction: column;
    width: 40%;
    margin-inline: auto;
    text-align: center;
  }
}
.btn__index:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.8);
}
.btn__index:active {
  transform: scale(0.98);
}
.btn__sponsor {
  flex: 0 0 305px;
  border: 2px solid rgba(255, 255, 255, 0.1607843137);
  border-radius: 16px;
  background-color: #050d1e;
  aspect-ratio: 1/1;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.1607843137);
  border-radius: 16px;
}
.btn__sponsor img {
  width: 100%;
  aspect-ratio: 1/1;
}
.btn__sponsor--1, .btn__sponsor --2, .btn__sponsor --3, .btn__sponsor --4, .btn__sponsor --5, .btn__sponsor --6, .btn__sponsor -- {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn__sponsor--flex {
  flex: 0 1 305px;
}
.btn__team {
  aspect-ratio: 2/3;
  justify-items: center;
  align-content: center;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.1607843137);
}
@media (max-width: 600px) {
  .btn__team {
    display: block;
    text-align: left;
  }
}
.btn__team--name {
  margin-block-start: 0.2rem;
  margin-block-end: 0.5rem;
}
.btn__team--title {
  font-size: clamp(1.35rem, 1.301rem + 0.2179vw, 1.5625rem);
  line-height: 1;
  text-align: center;
  margin-block: 1rem 0;
}
.btn__team--intro {
  opacity: 0;
  transform: translateY(8px);
  max-height: 0;
  margin: 0;
  overflow: hidden;
  font-size: clamp(1.125rem, 1.0962rem + 0.1282vw, 1.15rem);
  line-height: 1.3;
  transition: opacity 0.35s ease-in-out, transform 0.35s ease-in-out, max-height 0.35s ease-in-out;
}
.btn__team:hover .btn__team--intro {
  opacity: 1;
  transform: translateY(0);
  max-height: 10rem;
}
.btn__team:hover .btn__team--img {
  filter: none;
}
.btn__team--img {
  border-radius: 50%;
  margin-left: auto;
  margin-right: auto;
  width: 70%;
  aspect-ratio: 1/1;
  -o-object-fit: cover;
     object-fit: cover;
  -o-object-position: center 20%;
     object-position: center 20%;
  display: block;
  filter: grayscale(100%);
}

.index__sponsor--title {
  margin-bottom: 2rem;
  text-align: center;
}
.index__sponsor--slide {
  display: flex;
  gap: 3rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  cursor: grab;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.index__sponsor--slide::-webkit-scrollbar {
  display: none;
}
.index__sponsor--slide:active {
  cursor: grabbing;
}

.index__team {
  margin-top: 2rem;
  margin-left: -16px;
  margin-right: -16px;
  position: relative;
  padding: 6rem 2rem;
  min-height: 65vh;
  background-image: url("../images/project-work.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.index__team::before {
  content: "";
  position: absolute;
  inset: 0;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 0;
}
.index__team > * {
  position: relative;
  z-index: 1;
}
@media (max-width: 600px) {
  .index__team {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.index__about, .index__contact {
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
@media (max-width: 600px) {
  .index__about, .index__contact {
    text-align: center;
  }
}

.shell-marathon {
  position: relative;
  min-height: 80vh;
  margin-left: -1rem;
  margin-right: -1rem;
  padding: 1rem;
  background-image: url("../images/shell-eco-marathon.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.shell-marathon h2, .shell-marathon p {
  max-width: 60ch;
  margin-left: auto;
  margin-right: 5%;
  text-align: right;
}
@media (max-width: 600px) {
  .shell-marathon h2, .shell-marathon p {
    margin-right: auto;
    text-align: center;
  }
}
.shell-marathon .btn__index {
  position: absolute;
  right: 6%;
}
@media (max-width: 600px) {
  .shell-marathon .btn__index {
    position: static;
    right: 0%;
  }
}

.impact__images-container {
  display: flex;
  justify-content: space-around;
  gap: 1rem;
}
.impact__images-container .impact__image {
  flex: 0 1 240px;
}
.impact__images-container .impact__image img {
  max-width: 100%;
  border-radius: 1rem;
}
@media (max-width: 600px) {
  .impact__images-container {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .impact__images-container .impact__image {
    flex: 0 1 100px;
  }
}

.about__impact {
  text-align: center;
}
.about__impact > * {
  margin-inline: auto;
}

.about__goals {
  position: relative;
  margin-left: 2%;
}
.about__goals .btn__index {
  left: 5%;
}
@media (max-width: 600px) {
  .about__goals {
    text-align: center;
  }
}

section {
  margin-top: 10vh;
  margin-bottom: 10vh;
}

.spacer__title {
  margin-top: 5rem;
}

.index__hero {
  background-image: url("../images/hero-background.webp");
}
@media (max-width: 600px) {
  .index__hero {
    margin-bottom: -15rem;
  }
}

.about__hero {
  opacity: 0.89;
  background: linear-gradient(270deg, #040a16 7.69%, rgba(0, 0, 0, 0) 35.1%), linear-gradient(270deg, rgba(0, 0, 0, 0) 69.23%, #040a16 92.31%), linear-gradient(0deg, rgba(0, 0, 0, 0) 81.25%, #040a16 100%), linear-gradient(180deg, rgba(0, 0, 0, 0) 68.05%, #040a16 92.31%), url("../images/hero-about.webp") lightgray 0.544px -89.557px/99.944% 110.449% no-repeat;
}

.team__hero {
  opacity: 0.89;
  background: linear-gradient(270deg, #040a16 7.69%, rgba(0, 0, 0, 0) 15.1%), linear-gradient(270deg, rgba(0, 0, 0, 0) 79.23%, #040a16 92.31%), linear-gradient(0deg, rgba(0, 0, 0, 0) 81.25%, #040a16 100%), linear-gradient(180deg, rgba(0, 0, 0, 0) 68.05%, #040a16 92.31%), url("../images/hero-team.webp") lightgray 0.544px -89.557px/99.944% 110.449% no-repeat;
}

.hero {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero--flexend {
  align-items: flex-end;
}
.hero__content {
  max-width: 520px;
  color: white;
  margin-left: 5vw;
  margin-right: 5vw;
}
.hero__content--flexend {
  margin-block-end: 5%;
}
.hero__title {
  margin: 0;
}
@media (max-width: 600px) {
  .hero__title {
    margin-top: -17rem;
  }
}
.hero__text {
  margin: 2;
  line-height: 1.5;
  font-size: clamp(1.125rem, 1.0962rem + 0.1282vw, 1.15rem);
}

.gtr-hero {
  max-width: 100%;
  margin-bottom: 10px;
}

.sponsor__container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 2rem;
}
.sponsor__container--platinum {
  flex-wrap: nowrap;
}
.sponsor__container--team {
  justify-content: left;
}

.team-titles {
  text-align: center;
}

/*# ---------------------------------- contact - Phong ------------------------*/
/* CONTACT PAGE */
.contact__hero {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
  padding: 4rem 0rem 4rem 0rem;
  background-image: url("../images/hero-background.webp");
  background-size: cover;
  background-position: center;
}

.contact__hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 4, 4, 0.55);
}

.contact__hero-content {
  position: relative;
  text-align: center;
  max-width: 750px;
}

.contact__hero-content h1 {
  margin: 0 0 0.75rem;
}

.contact__hero-content p {
  margin: 0;
  opacity: 0.9;
}

.contact__content {
  padding: 2rem 1.25rem 4rem;
}

.contact__grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

/* 2 columns on desktop */
@media (min-width: 900px) {
  .contact__grid {
    grid-template-columns: 3fr 2fr;
    align-items: start;
  }
}
.contact__card {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  padding: 1.5rem;
  color: #fff;
}

.contact__card h2 {
  margin-top: 0;
}

.contact__form {
  margin-top: 1.25rem;
  display: grid;
  gap: 1rem;
}

.contact__row {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .contact__row {
    grid-template-columns: 1fr 1fr;
  }
}
.contact__field {
  display: grid;
  gap: 0.5rem;
}

.contact__label {
  color: rgba(255, 255, 255, 0.85);
}

.contact__input,
.contact__textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(5, 5, 5, 0.35);
  color: inherit;
  padding: 0.85rem 0.9rem;
  outline: none;
}

.contact__textarea {
  resize: vertical;
  min-height: 140px;
}

.contact__input:focus,
.contact__textarea:focus {
  border-color: rgba(6, 6, 6, 0.35);
}

/* INFO */
.contact__info {
  margin-top: 1.25rem;
  display: grid;
  gap: 1rem;
}

.contact__info-block h3 {
  margin: 0 0 0.25rem;
}

.contact__info-block a {
  opacity: 0.85;
}

.contact__info-block a:hover {
  opacity: 1;
}

.contact__socials {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.contact__socials-container {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.contact__socials-container a {
  flex: 0 1 40px;
}

.contact__socials-icon {
  width: 100%;
}

/* Reusable button (matches your "btn" pattern) */
.btn__main {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  transition: transform 150ms ease, filter 150ms ease;
}

/* Hover: tweak to match your existing button hover colors */
.btn__main:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}/*# sourceMappingURL=main.css.map */