@charset "utf-8";
/* CSS Document */

main {
    margin-bottom: 10em;
}

.page-margin {
    max-width: 1350px;
    margin: 0 auto;
}

.hero-section {
    height: 700px;
    position: relative;
}

.hero-section img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 0 70%;
}

.hero-section::after {
    z-index: 1;
    content: "";
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.3), transparent);
}

.hero_content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero_content_inner {
    max-width: 1350px;
    margin: 0 auto;
    position: relative;
    width: 100%;
    height: 100%;
}

.title_heading {
    position: absolute;
    top: 30%;
    left: 0;
    z-index: 2;
}

.title_heading h1 {
    margin: 0;
    color: #fff;
    font-size: 60px;
}

.title_heading p {
    color: #fff;
    font-weight: bold;
    font-size: 26px;
    margin: .5em 0 1.5em;
}

.heading-search {
    max-width: 700px;
    margin: 20px auto;
    font-family: Arial, sans-serif;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(200, 200, 200, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 4px;
    padding: 2px 5px;
    margin-bottom: 15px;
}

.search-container input[type="text"] {
    width: 100%;
    padding: 10px 15px;
    background: transparent;
    border: none;
    outline: none;
    color: #000;
    font-size: 16px;
    font-weight: 600;
}

.search-container input[type="text"]::placeholder {
    color: rgba(255, 255, 255, 0.9);
    font-weight: normal;
}

.search-container button {
    background: transparent;
    border: none;
    border-left: 1px solid rgba(255, 255, 255, 0.6);
    padding: 8px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-container button i {
    color: #ffffff !important;
    font-size: 18px;
}

.radio-container {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.radio-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 8px 30px;
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 20px; 
    color: #ffffff;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

.radio-button input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-button .checkmark {
    display: none;
    margin-right: 6px;
    font-size: 12px;
}

.radio-button:has(input:checked) {
    background-color: #000;
    border-color: #000;
}

.radio-button input:checked + .checkmark {
    display: inline-block;
}

.radio-container .radio-button:has(input:checked) {
    background: #000000;
    border-color: #000000;
    color: #ffffff;
}

.radio-container .radio-button:not(:has(input:checked)):hover {
    background: #000000;
    border-color: #000000;
    color: #ffffff;
}

.heading-search .search-container:hover,
.heading-search:has(.radio-button:hover) .search-container {
    background: #ffffff;
}

.heading-search .search-container:hover input::placeholder,
.heading-search:has(.radio-button:hover) .search-container input::placeholder {
    color: #a9a9a9;
}

.heading-search .search-container:hover button,
.heading-search:has(.radio-button:hover) .search-container button {
    border-left-color: #a9a9a9;
}

.heading-search .search-container:hover button i,
.heading-search:has(.radio-button:hover) .search-container button i {
    color: #a9a9a9 !important;
}

.search-container::after {
    content: "";
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100%;
    height: 15px;
}

.search-container input[type="text"]:focus {
    caret-color: #000000;
    color: #000000;
}

.heading-search .search-container:hover,
.heading-search .search-container:focus-within,
.heading-search:has(.radio-button:hover) .search-container,
.heading-search:has(.radio-button:not(:first-child) input:checked) .search-container {
    background: #ffffff;
}

.heading-search .search-container:hover input::placeholder,
.heading-search .search-container:focus-within input::placeholder,
.heading-search:has(.radio-button:hover) .search-container input::placeholder,
.heading-search:has(.radio-button:not(:first-child) input:checked) .search-container input::placeholder {
    color: #a9a9a9;
}

.heading-search .search-container:hover button,
.heading-search .search-container:focus-within button,
.heading-search:has(.radio-button:hover) .search-container button,
.heading-search:has(.radio-button:not(:first-child) input:checked) .search-container button {
    border-left-color: #a9a9a9;
}

.heading-search .search-container:hover button i,
.heading-search .search-container:focus-within button i,
.heading-search:has(.radio-button:hover) .search-container button i,
.heading-search:has(.radio-button:not(:first-child) input:checked) .search-container button i {
    color: #a9a9a9 !important;
}

.heading-search,
.heading-search * {
    font-weight: normal !important;
}

.main-section {
    position: relative;
    background-color: #ffffff;
}

.main-container {
    padding-top: 3em;
    position: relative;
    z-index: 2;
}

.main-container h1 {
    margin: 0;
}

.multi-item-row {
    display: flex;
    gap: 2em;
}

.multi-item-row .multi-item {
    flex-grow: 1;
    position: relative;
    border-radius: 2px;
    background-position: 100% 50%;
    background-size: cover;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.multi-item-row .multi-item:nth-of-type(1) {
    background-image: url(/01/007/003/oil-and-gas-processing-facility-ruralarea-onshore.webp);
}

.multi-item-row .multi-item:nth-of-type(2) {
    background-image: url(/01/007/003/semi-submersible-offshore-drilling-rig.webp);
}

.multi-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.20);
    transition: background-color 0.35s ease-in-out;
    z-index: 1;
    pointer-events: none;
}

.multi-item:hover::before {
    background-color: rgba(0, 0, 0, 0.10);
}

.multi-item-row .multi-item:hover {
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 4px 10px rgba(0, 0, 0, 0.08);
    cursor: pointer;
}

.multi-item-row .multi-item a {
    display: flex;
    flex-direction: column;
    height: 180px;
    padding: 2em 1.5em;
    position: relative;
    z-index: 2; 
    text-decoration: none;
    box-sizing: border-box;
}

.multi-item-row .multi-item h2 {
    margin: 0;
    color: #fff;
    flex: 1 0 auto;
    font-size: 24px;
    transition: color 0.35s ease-in-out;
}

.multi-item-row .multi-item:hover h2 {
    text-decoration: underline;
}

.multi-item-row .multi-item a span {
    color: #000;
    background: #fff;
    display: inline-block;
    width: fit-content;
    padding: 10px;
    border-radius: 4px;
    transition: background-color 0.35s ease-in-out, color 0.35s ease-in-out;
}

.library-content_inner-text {
    text-align: center;
    margin: 4em auto;
    max-width: 80%;
}

.library-content_inner-text p {
    margin: 0;
    letter-spacing: 1%;
}

.library-content_inner-text p:nth-of-type(1) {
    font-size: 24px;
    line-height: 30px;
    margin-bottom: 14px;
}

.library-content_inner-text p:nth-of-type(2) {
    font-size: 20px;
    line-height: 24px;
}

.box-content {
    background: #F5F5F7;
    padding: 2em 5%;
}

.box-content h2 {
    font-weight: normal;
    margin: 0 0 10px;
    font-size: 24px;
}

.box-content p {
    margin: 0;
    color: #595959;
    letter-spacing: 1%;
}

.box-content p a {
    color: #7F7F7F;
}

.box-content p a:hover {
    color: #595959;
}




:root {
      --gap: 16px;
    }

.services-wrapper {
  padding: 1em 0;
  overflow-x: hidden;
  width: 100%;
margin: 0 auto;
}

/* Centered Content Alignment */
.inner-container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2.2rem;
  color: #141414;
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.section-header p {
  color: #555;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Category Tabs */
.tabs {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 2rem;
  gap: 2rem;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.75rem 0.25rem;
  font-size: 0.95rem;
  color: #4b5563;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}

.tab-btn.active {
  color: #00243d;
  border-bottom-color: #22d3ee;
  font-weight: bold;
}

/* Track Viewport & Full-Bleed Alignment */
.carousel-viewport {
  width: 100vw;
  /* Pad left so Card 1 aligns with inner container edge */
  padding-left: max(1.5rem, calc((100vw - 1350px) / 2 + 1.5rem));
  margin-bottom: 2rem;
    margin-left: -8px;
}

.cards-track {
  display: flex;
  gap: var(--gap);
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.cards-track a {
    text-decoration: none;
}

/* Card Sizing & Side Card Opacity */
.card {
  background: #fff;
  border-radius: 8px;
  flex-shrink: 0;
  opacity: 0.35; /* Dimmed state for outside cards */
  transition: opacity 0.4s ease;
    border: 1px solid #EFEFEF;
}

.card.in-view {
  opacity: 1; /* Fully visible center 4 cards */
}

.card-img {
  width: 100%;
  height: 150px;
  background-color: #e0f2fe;
  border-radius: 8px 8px 0 0;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-content span {
    color: #858383;
    font-size: 13px;
}

.card-content h3 {
    font-size: 15px;
    color: #111827;
    font-weight: normal;
    line-height: 20px;
    margin: 0.8rem 0 0.5rem 0;
}

.card-content h3:hover {
    text-decoration: underline;
}

.card-content p {
  font-size: 0.88rem;
  color: #4b5563;
  line-height: 1.4;
}

/* Footer Controls */
.carousel-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.indicators {
  display: flex;
  gap: 0.5rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.pill {
  width: 8px;
  height: 8px;
  background-color: #e5e7eb;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s;
}

.pill.active {
  width: 28px;
  background-color: #00243d;
  border-radius: 10px;
}

.nav-buttons {
  display: flex;
  gap: 0.5rem;
  margin-left: auto;
}

.nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid #d1d5db;
  background: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  color: #374151;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.nav-btn:hover {
  border-color: #9ca3af;
  background: #f9fafb;
}

.carousel-section {
    margin: 4em 0;
}

.carousel-heading h2 {
    font-weight: bold;
    font-size: 20px;
    margin-bottom: 10px;
}

.carousel-heading p {
    color: #595959;
    font-size: 15px;
}

.carousel-heading a {
    border: 1px solid #D2D2D7;
    text-decoration: none;
    font-size: 15px;
    color: #4a4a4a;
    padding: 8px 10px;
    margin: 1.5em 0;
    display: inline-block;
    border-radius: 6px;
}

.card-content {
    padding: 1em;
}

.contribution-container {
    background: #F5F5F7;
    padding: 3em;
    display: flex;
    gap: 2em;
    box-shadow: 3px 3px 4px 2px rgba(0, 0, 0, 0.2);
}

.paper-information {
    display: flex;
    flex: 1;
    flex-direction: column;
}

.paper-information-content {
    background: #fff;
    border: 2px solid #E8E8EC;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5em;
}

.paper-information-content img:nth-of-type(1) {
    max-height: 40px;
}

.paper-information-content img:nth-of-type(2) {
    max-height: 180px;
    margin: 1em auto 2em;
}

.paper-information-content p:nth-of-type(1) {
    margin: 0;
}

.contribution-information {
    display: flex;
    flex: 2;
    flex-direction: column;
}

.contribution-information-content {
    background: #fff;
    border: 2px solid #E8E8EC;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5em 1.5em 3em;
}

.paper-information a {
    text-decoration: none;
    color: #000;
    font-weight: bold;
    display: inline-block;
    border: 1px solid #000;
    padding: 8px 10px;
    border-radius: 6px;
    background: #fff;
    margin: 2em auto;
    width: fit-content;
}

.contribution-information-content h3 {
    margin: 0;
    font-size: 17px;
    color: #7F7F7F;
    font-weight: normal;
}

.contribution-information-content p {
    margin: 0 0 1em;
}

.contribution-information-content p:nth-of-type(1) {
    font-weight: bold;
    font-size: 15px;
    margin: 10px 0;
}

.contribution-information-content p:last-of-type {
    color: #595959;
    margin-bottom: 1.5em;
}

.contribution-information-content a {
    text-decoration: none;
    color: #0066CC;
}

.contribution-information-content a:hover {
    text-decoration: underline;
}

.author-contribution {
    border: 1px solid #E8E8EC;
    border-radius: 4px;
    display: flex;
    gap: 1em;
    padding: 10px;
    align-items: center;
    margin: 1.5em 0 2.5em;
}

.author-contribution p:nth-of-type(1) {
    font-weight: bold;
    margin: 0 0 5px;
}

.author-contribution p:nth-of-type(2) {
    margin: 0;
}

.divider {
    border: 1px solid #E8E8EC;
    width: 100%;
    margin: .5em 0 1.5em;
}

.contribution-information > p {
    text-align: center;
}

/*********************
Media
*********************/

@media only screen and (max-width: 1400px) {
    .page-margin {
        max-width: 1200px;
        margin: 2.5em auto 4em;
    }
    .hero_content_inner {
        max-width: 1200px;
    }
    .inner-container {
        max-width: 1200px;
    }
}

@media only screen and (max-width: 1250px) {
     .page-margin {
        max-width: 1100px;
    }
    .hero_content_inner {
        max-width: 1100px;
    }
    .inner-container {
        max-width: 1100px;
    }
    .title_heading h1 {
        font-size: 50px;
    }
    .title_heading p {
        font-size: 22px;
    }
}

@media (min-width: 1150px) {
    #indicators {
        display: flex;
        gap: 8px;
        align-items: center;
    }
    .pill {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: #ccc;
        cursor: pointer;
        transition: background-color 0.2s ease, width 0.2s ease;
    }
    .pill.active {
        background-color: #111;
        width: 24px;
        border-radius: 4px;
    }
} 

@media only screen and (max-width: 1150px) {
    .page-margin {
        max-width: unset;
        margin: 2.5em 2em 0;
    }
    .hero_content_inner {
        max-width: unset;
        margin: 0 2em;
    }
    .inner-container {
        max-width: unset;
        margin: 0 2em;
    }
    .hero-section {
        height: 600px;
    }
    html {
        overflow-x: hidden;
    }
    .carousel-viewport {
        margin-left: 0;
    }
    .card {
        transition: opacity 0.3s ease, width 0.2s ease;
    }
    .carousel-controls {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 12px;
        padding: 16px 2em 0 2em;
    }
    .carousel-btn {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        border: 1px solid #d1d5db;
        background-color: #ffffff;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.2s ease;
    }
    .carousel-btn.disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }
    .carousel-viewport {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .carousel-viewport::-webkit-scrollbar {
        display: none;
    }
    .carousel-viewport {
        width: 100%;
        overflow-x: auto !important;
        scroll-snap-type: x mandatory !important;
        scroll-padding-left: 2em !important;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .carousel-viewport::-webkit-scrollbar {
        display: none;
    }
    #cardTrack {
        display: flex;
        gap: 16px;
        padding-left: 2em !important;
        padding-right: 2em !important;
        box-sizing: border-box;
        width: max-content;
    }
    .carousel-controls {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
}

@media (max-width: 1149px) {
    .carousel-controls {
        display: flex;
        align-items: center;
        gap: 16px;
        padding: 0 32px;
        max-width: 600px;
        margin: 0 auto;
    }
    #indicators {
        flex: 1;
        height: 6px;
        background-color: #e0e0e0;
        border-radius: 2px;
        position: relative;
        overflow: hidden;
        max-width: 80px;
    }
    .progress-bar-fill {
        height: 100%;
        width: 0%;
        background-color: #111111;
        border-radius: 2px;
        transition: width 0.2s ease-out;
    }
}

@media only screen and (max-width: 992px) {
    .library-content_inner-text {
        max-width: 90%;
    }
    .library-content_inner-text p:nth-of-type(1) {
        font-size: 22px;
    }
    .library-content_inner-text p:nth-of-type(2) {
        font-size: 18px;
    }
    .contribution-container {
        padding: 2em 1em;
        gap: 1em;
    }
    .paper-information-content img:nth-of-type(2) {
        max-height: 200px;
    }
}

@media only screen and (max-width: 800px) {
    .contribution-container {
        flex-direction: column-reverse;
    }
}

@media only screen and (max-width: 768px) {
    .multi-item-row {
        flex-direction: column;
    }
    .hero-section img {
        object-position: 40% 0;
    }
    .title_heading h1 {
        font-size: 42px;
    }
    .box-content p {
        line-height: 22px;
    }
    .box-content h2 {
        line-height: 32px;
    }
}

@media only screen and (max-width: 600px) {
    .page-margin {
        margin: 1em 2em 0;
    }
    .main-container {
        padding-top: 2em;
    }
    .hero-section {
        height: 350px;
    }
    .title_heading {
        top: 18%;
        width: 80%;
    }
    .title_heading h1 {
        font-size: 38px;
    }
    .title_heading p {
        font-size: 18px;
    }
    .library-content_inner-text {
        max-width: 100%;
        text-align: left;
    }
    .library-content_inner-text p:nth-of-type(2) {
        font-size: 15px;
    }
    .box-content h2 {
        font-size: 22px;
    }
}

@media only screen and (max-width: 500px) {

}

@media only screen and (max-width: 450px) {
    .page-margin {
        margin: 1em 1.5em 0;
    }
    .heading-search {
        max-width: unset;
        margin: 20px 4em 0 0;
    }
    .hero_content_inner {
        margin: 0;
    }
    .title_heading {
        margin-left: 1.5em;
    }
    .radio-button {
        font-size: 13px;
    }
    .title_heading h1 {
        font-size: 32px;
    }
    .multi-item-row .multi-item a {
        padding: 1.5em;
    }
    .contribution-container {
        box-shadow: none;
    }
    .main-container .page-margin:last-of-type {
        margin: 0;
    }
    main {
        margin-bottom: 0;
    }
    .contribution-container {
        padding: 3em 1em 2em;
    }
    .carousel-viewport {
      scroll-padding-left: 1.5em !important;
    }
    #cardTrack {
      padding-left: 1.5em !important;
      padding-right: 1.5em !important;
    }
}