.section-timeline {
    padding: 100px 0 50px 0;
}

.section-timeline__wrap {
    display: flex;
    flex-wrap: wrap;
}

.section-timeline__wrap::after {
    position: absolute;
    content: "";
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
    z-index: 2;
    background-color: var(--primary-color);
}

.timeline-item {
    width: 50%;
    padding: 20px 30px;
}

.timeline-box:nth-child(odd) .timeline-item {
    margin-left: auto;
}

.timeline-box:nth-child(odd) .timeline-item::before,
.timeline-box:nth-child(even) .timeline-item::before {
    content: "";
    position: absolute;
    width: 9px;
    height: 9px;
    left: -4px;
    background-color: var(--primary-color);
    border: 1px solid var(--primary-color);
    top: 20px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-box:nth-child(even) .timeline-item::before {
    left: unset;
    right: -5px;
}

.timeline-item__icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-item__icon img {
    object-fit: cover;
}

.timeline-item__title {
    font-weight: 700;
    color: var(--black);
    font-size: 1.1em;
}

.timeline-item__text>p {
    text-align: left !important;
}

.timeline-item__text {
    font-size: 1.05em;
    color: var(--bs-gray);
}

.timeline-item__text p:last-child {
    margin-bottom: 0;
}

.section-introduce {
    padding: 100px 0;
}

.section-introduce .heading-title {
    font-size: 2.3em;
}

@media (max-width: 992px) {
    .section-introduce {
        padding: 50px 0;
    }

    .section-heading .heading-title {
        font-size: 1.6em;
    }

    .timeline-item {
        padding: 20px 15px 0 15px;
    }

    .timeline-item__icon {
        width: 45px;
        height: 45px;
    }

    .timeline-item__title {
        font-size: 1.05em;
    }

    .timeline-item__text {
        font-size: 1em;
    }
}

.section-introduce {
    background-color: #f1f8ff;
}

.box-introduce {
    padding: 30px;
    border-radius: 30px;
    position: relative;
    z-index: 1;
    transition: var(--transition-default);
    background-color: #f1f8ff;
}

.box-introduce .box-introduce_image {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    margin-right: 12px;
}

.box-introduce .box-introduce_title {
    font-size: 1.6em;
    font-weight: 600;
    line-height: 1.2;
    color: #0d47a1;
    font-family: var(--font-heading);
    width: 100%;
}

.box-introduce .box-introduce_body {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid rgba(64, 74, 61, 0.1);
    position: relative;
}

.box-introduce .box-introduce_body:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--primary-color);
    transition: var(--transition-default);
}

.box-introduce:hover {
    transform: translateY(-10px);
}

.box-introduce:hover .box-introduce_body:before {
    width: 100%;
}

.section-introduce .introduce-image {
    height: 100%;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    border-radius: 30px;
    position: relative;
    min-height: 550px;
}

.section-introduce .introduce-image .introduce-image_box {
    position: absolute;
    bottom: 0;
    right: 0;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_box__content {
    padding: 30px 0 0 30px;
    position: relative;
    background-color: #f8f7f0;
    border-radius: 30px 0 0;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_box__content .introduce-image_box__inner {
    border-radius: 24px;
    padding: 30px;
    background-image: linear-gradient(270deg,
            var(--primary-color) 0%,
            rgba(var(--primary-rgb), 0.65) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    color: var(--bs-white);
    font-weight: 600;
    font-size: 1.3em;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_box__content .introduce-image_box__inner>span {
    font-size: 2.45em;
    font-weight: 700;
    font-family: var(--font-heading);
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_decor {
    position: absolute;
    width: 30px;
    height: 30px;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_decor svg {
    fill: #f8f7f0;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_decor.decor-bottom_left {
    bottom: 0;
    left: -30px;
}

.section-introduce .introduce-image .introduce-image_box .introduce-image_decor.decor-top_right {
    right: 0;
    top: -30px;
}

@media (max-width: 1400px) {
    .box-introduce {
        padding: 20px;
    }

    .box-introduce .box-introduce_image {
        width: 50px;
        height: 50px;
        padding: 15px;
    }

    .box-introduce .box-introduce_title {
        font-size: 1.25em;
    }

    .box-introduce .box-introduce_body {
        margin-top: 15px;
        padding-top: 15px;
    }

    .section-introduce .introduce-image .introduce-image_box .introduce-image_box__content {
        padding: 15px 0 0 15px;
    }

    .section-introduce .introduce-image .introduce-image_box .introduce-image_box__content .introduce-image_box__inner {
        font-size: 1em;
    }
}

.image-border {
    width: 200px;
    height: 200px;
}

.header .header-overlay {
    display: none !important;
}

@media (max-width: 1200px) {
    .header .header-navigation {
        width: 280px;
    }
}

.section-html__wrap .section-heading .heading-title {
    text-align: center;
}

.speakers-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
}

.speaker {
    width: 30%;
    min-width: 280px;
    text-align: center;
}

/* Tablet */
@media (max-width: 992px) {
    .speaker {
        width: 45%;
    }
}

/* Mobile */
@media (max-width: 600px) {
    .speaker {
        width: 90%;
    }
}

/* speakers */
.square-avatar {
    width: 300px;
    height: 300px;
    border-radius: 1%;
    display: inline-block;
    margin-bottom: 20px;
    position: relative;
    border: none;
    box-shadow: 0px 0px 20px rgba(130, 134, 136, 0.8);
    transition: box-shadow 0.3s ease-in-out, border 0.3s ease-in-out;
}

.square-avatar:hover {
    box-shadow: 0px 0px 30px rgba(0, 179, 255, 1);
    border: 2px solid rgba(0, 179, 255, 1);
}

.workshop-avatar {
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
    /* đỏ nhạt */
}

.workshop-avatar:hover {
    box-shadow: 0 0 30px rgba(255, 0, 0, 1);
    /* đỏ đậm khi hover */
    border: 2px solid rgba(255, 0, 0, 1);
    /* đường viền đỏ */
}

h2,
p {
    margin: 5px 0;
}

.section-wrapper {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #222;
}

.section-description {
    font-size: 16px;
    color: #555;
    max-width: 800px;
    margin: 0 auto 40px auto;
    line-height: 1.6;
}

/* Add bottom border for Invited Speaker section */
.invited-wrapper {
    border-bottom: 1px solid #ddd;
    padding-bottom: 50px;
    margin-bottom: 60px;
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    justify-content: center;
}

@media (max-width: 991px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .speakers-grid {
        grid-template-columns: 1fr;
    }
}

.speaker {
    text-align: center;
}

/* Invited Speakers (blue) */
.square-avatar {
    width: 300px;
    height: 300px;
    margin: 0 auto 10px auto;
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(0, 179, 255, 0.8);
    transition: all 0.3s ease-in-out;
}

.square-avatar:hover {
    box-shadow: 0 0 30px rgba(0, 179, 255, 1);
    border: 2px solid rgba(0, 179, 255, 1);
}

/* Workshop Speakers - RED style */
.workshop-avatar {
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
}

.workshop-avatar:hover {
    box-shadow: 0 0 30px rgba(255, 0, 0, 1);
    border: 2px solid rgba(255, 0, 0, 1);
}

.title {
    font-weight: 600;
    margin: 5px 0;
    white-space: nowrap;
    overflow: visible;
    text-overflow: unset;
}

.title a {
    text-decoration: none;
    color: #007BFF;
    /* Default blue */
    transition: color 0.3s ease-in-out;
}

.title a:hover {
    text-decoration: underline;
    color: #0056b3;
}

/* Red title for workshop speaker (when avatar has red glow) */
.workshop-avatar+.title a {
    color: #e60023;
    /* đỏ chính */
}

.workshop-avatar+.title a:hover {
    color: #a3001b;
    /* đỏ đậm hơn khi hover */
}

.main-speakers {
    text-align: center;
    margin: 0;
    padding: 0;
}

/* end speakers */

/* registration */
.info-section {
    font-family: 'Poppins', sans-serif;
    max-width: 960px;
    margin: 50px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.07);
    text-align: center;
}

.info-icon {
    font-size: 36px;
    color: #0d47a1;
    margin-bottom: 15px;
}

.info-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #222;
}

.info-desc {
    font-size: 15px;
    color: #444;
    line-height: 1.7;
    margin-bottom: 25px;
    padding: 0 10px;
}

.info-button {
    display: inline-block;
    background: #0d47a1;
    color: white;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.info-button:hover {
    background: #083b84;
}

.e-visa-section {
    padding: 60px 20px;
    background: #ffffff;
    border-radius: 20px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.08);
}

.e-visa-section h2 {
    font-size: 26px;
    font-weight: 700;
    color: #222;
    margin-bottom: 20px;
}

.e-visa-section p {
    font-size: 16px;
    color: #555;
    max-width: 700px;
    margin: 0 auto 30px auto;
    line-height: 1.6;
}

.e-visa-button {
    display: inline-block;
    background: #004aad;
    color: white;
    font-weight: 600;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    transition: background 0.3s;
    font-size: 16px;
}

.e-visa-button:hover {
    background: #003c8f;
}

@media (max-width: 768px) {
    .info-title {
        font-size: 18px;
    }

    .info-desc {
        font-size: 14px;
    }

    .info-button {
        font-size: 13px;
        padding: 12px 24px;
    }

    .e-visa-section {
        padding: 40px 20px;
    }

    .e-visa-section h2 {
        font-size: 22px;
    }

    .e-visa-section p {
        font-size: 14px;
    }

    .e-visa-button {
        font-size: 14px;
        padding: 12px 30px;
    }
}

.box-introduce {
    background: #ffffff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.box-introduce_header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.box-introduce_image {
    width: 64px;
    height: 64px;
}

.box-introduce_title {
    font-size: 20px;
    font-weight: 600;
    color: #222;
}

.box-introduce_body {
    font-size: 24px;
    font-weight: 700;
    color: #0d47a1;
    margin: 0;
}

.button-theme {
    display: inline-block;
    background: #0d47a1;
    color: white;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.button-theme:hover {
    background: #083b84;
}

/* end registration */

/* .custom-register-button */
@keyframes pulse-blue {
    0% {
        box-shadow: 0 0 0 rgba(13, 71, 161, 0.6);
        /* #0d47a1 in RGBA */
    }

    50% {
        box-shadow: 0 0 50px rgba(13, 71, 161, 0.8);
    }

    100% {
        box-shadow: 0 0 0 rgba(13, 71, 161, 0.6);
    }
}

.register-button-blue {
    display: inline-block;
    padding: 14px 28px;
    background-color: #0d47a1;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    animation: pulse-blue 1.5s infinite;
}

.register-button-blue:hover {
    background-color: #093170;
    /* darker shade for hover */
    transform: scale(1.05);
    color: white;
}


/* end .custom-register-button */
div#detailContent {
    font-family: "Poppins", sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    color: #333;
}

div#detailContent p {
    font-size: 16px;
    line-height: 1.6;
    text-align: justify;
}

div#detailContent h3 {
    margin-top: 30px;
    font-size: 18px;
    font-weight: 600;
    text-align: left;
}

div#detailContent ol {
    padding-left: 20px;
    margin-top: 15px;
    line-height: 1.8;
    font-size: 15px;
    text-align: justify;
}

.image-gallery,
.dish-gallery {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.image-gallery>div,
.dish-gallery>div {
    width: 22%;
    text-align: center;
}

.image-gallery img,
.dish-gallery img {
    width: 100%;
    border-radius: 10px;
    height: 150px;
    object-fit: cover;
}

.dish-gallery p {
    font-size: 14px;
    margin-top: 8px;
}

td,
th {
    border: 1px solid #ced4da !important;
    padding: 5px;
}
/* 
.hero-item_image {
    object-fit: cover;
    width: 1903px;
    height: 400px;
} */

.section-hero.position-relative.overflow-hidden.bg-white {
    text-align: center;
}

.hero-item_image {
    object-fit: cover;
    width: 100%;
    min-width: 1920px;
    height: 807px;
}


.co-organizer-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1rem;
  justify-items: center;
  align-items: center;
}

.co-organizer-item img {
  width: 80px;
  height: 40px;
  object-fit: contain;
  transition: all 0.3s ease;
}

@media (max-width: 992px) {
  .co-organizer-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .co-organizer-item img {
    width: 70px;
    height: 35px;
  }
}

@media (max-width: 768px) {
  .co-organizer-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .co-organizer-item img {
    width: 60px;
    height: 30px;
  }
}

@media (max-width: 576px) {
  .co-organizer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .co-organizer-item img {
    width: 50px;
    height: 25px;
  }
}

#logo-section{
    /* background-image: url("/images/conference2025.jpg"); */
}


.container, .container-fluid, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
    --bs-gutter-x: auto !important;
}