@keyframes presenter-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-1.2rem);
    }
}

@keyframes live-pulse {
    50% {
        box-shadow: 0 0 0 .8rem rgba(217, 164, 65, 0);
    }
}

@keyframes ring-pulse {
    50% {
        transform: scale(1.08);
        opacity: .25;
    }
}

@keyframes rotate {
    to {
        transform: rotate(360deg);
    }
}

@keyframes rotate-reverse {
    to {
        transform: rotate(-360deg);
    }
}

@keyframes fadeUp {
    from {
        transform: translateY(2rem);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes particle {
    50% {
        transform: translateY(-2rem);
        opacity: .9;
    }
}

@keyframes pulse {
    50% {
        box-shadow: 0 0 0 .8rem rgba(217, 164, 65, 0);
    }
}

@keyframes titleGlow {
    50% {
        text-shadow: 0 0 2rem rgba(217, 164, 65, .22);
    }
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    padding: 0 2rem;
}

.btn {
    font-weight: bold;
    padding: 1rem 2rem;
    transition: .25s;
    border-radius: 2rem;

    gap: 1rem;
}

.btn:hover {
    transform: translateY(-.25rem);
}

.btn-primary {
    color: #FFFFFF;
    background: #003F7F;
}

.btn-primary:hover {
    box-shadow: 0 0 1rem #003F7F3F;
}

.btn-light {
    color: #FFFFFF;
    border: 1px solid #FFFFFF3F;
    background: #FFFFFF3F;
}

.btn-white {
    min-width: 12rem;
    color: #003F7F;
    background: #FFFFFF;
}

.hero {
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 82% 18%, #d9a4412b, transparent 25rem), radial-gradient(circle at 10% 80%, #3d70a324, transparent 30rem), linear-gradient(135deg, #0d1828, #17283e 54%, #0f1c2d);
}

.hero::before {
    position: absolute;
    content: "";
    opacity: .18;
    background-image: linear-gradient(#ffffff0a 1px, transparent 1px), linear-gradient(90deg, #ffffff0a 1px, transparent 1px);
    background-size: 5rem 5rem;

    inset: 0;
}

.hero-particles i {
    position: absolute;
    width: .5rem;
    height: .5rem;
    animation: particle 5s ease-in-out infinite;
    border-radius: 50%;
    background: rgba(255, 255, 255, .35);
}

.hero-particles i:nth-child(1) {
    top: 18%;
    right: 63%;
}

.hero-particles i:nth-child(2) {
    top: 28%;
    right: 46%;
    animation-delay: -3s;
}

.hero-particles i:nth-child(3) {
    top: 64%;
    right: 72%;
    animation-delay: -2s;
}

.hero-particles i:nth-child(4) {
    top: 72%;
    right: 39%;
    animation-delay: -4s;
}

.hero-particles i:nth-child(5) {
    top: 13%;
    right: 22%;
    animation-delay: -2.5s;
}

.hero-particles i:nth-child(6) {
    top: 54%;
    right: 18%;
    animation-delay: -3.5s;
}

.hero-particles i:nth-child(7) {
    top: 84%;
    right: 56%;
    animation-delay: -1.5s;
}

.hero-particles i:nth-child(8) {
    top: 37%;
    right: 81%;
    animation-delay: -4.5s;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;

    gap: 5rem;
}

.hero-text {
    width: 50%;
    color: #FFFFFF;
}

.live-pulse {
    width: 1rem;
    height: 1rem;
    animation: pulse 2s infinite;
    border-radius: 50%;
    background: #BF7F00;
}

.hero h1 {
    font-size: 3rem;
    font-weight: bold;
    line-height: 1.4;
    max-width: 62rem;
    margin-top: 2rem;
    animation: fadeUp .9s .1s both;
}

.hero h1 strong {
    font-weight: bold;
    animation: titleGlow 4s infinite;
    color: #BF7F00;
}

.hero-text p {
    font-size: 1.2rem;
    line-height: 2;
    margin-top: 2rem;
    animation: fadeUp .9s .2s both;
    color: #b9c3ce;
}

.hero-actions {
    display: flex;
    margin-top: 2rem;
    animation: fadeUp .9s .3s both;

    gap: 1.2rem;
}

.hero-info {
    display: flex;
    align-items: center;
    margin: 4rem 0 2rem 0;
    animation: fadeUp .9s .4s both;

    gap: 2.5rem;
}

.hero-info div {
    display: flex;
    flex-direction: column;
}

.hero-info strong {
    font-size: 2rem;
}

.hero-info span {
    font-size: 1rem;
    color: #97a4b2;
}

.hero-info i {
    width: 1px;
    height: 4rem;
    background: #ffffff1f;
}

.hero-visual {
    position: relative;
    display: grid;
    width: 50%;

    place-items: center;
}

.visual-ring {
    position: absolute;
    border: 1px solid #ffffff17;
    border-radius: 50%;
}

.ring-one {
    width: 48rem;
    height: 48rem;
    animation: rotate 18s linear infinite;
}

.ring-two {
    width: 32rem;
    height: 32rem;
    animation: rotate-reverse 14s linear infinite;
    border-style: dashed;
    border-color: #d9a44126;
}

.ring-three {
    width: 24rem;
    height: 24rem;
    animation: ring-pulse 4s ease-in-out infinite;
    border-color: #ffffff0f;
}

.presentation-card {
    position: relative;
    overflow: hidden;
    width: 24rem;
    animation: presenter-float 5s ease-in-out infinite;
    border-radius: 2rem;
    background: linear-gradient(145deg, #ffffff, #edf1f5);
    box-shadow: 0 3rem 6rem #0000004d;
}

.presentation-top {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

.presentation-title {
    font-size: 1.1rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    color: #263443;

    gap: .7rem;
}

.presentation-live {
    font-size: 1rem;
    font-weight: bold;
    color: #BF3F3F;
}

.live-pulse {
    width: 1rem;
    height: 1rem;
    animation: live-pulse 1.8s infinite;
    border-radius: 50%;
    background: #BF7F00;
    box-shadow: 0 0 0 .3rem #d9a4411f;
}

.presenter-photo {
    display: block;
    width: 100%;
    height: auto;
    animation: presenter-photo-float 5s ease-in-out infinite;
}

.conferences {
    padding: 5rem 0;
    background: #FFFFFF;
}

.conferences .container {
    overflow: hidden;
}

.conferences .section-head {
    margin-bottom: 2rem;
}

.conferences .section-head h2 {
    font-size: 2rem;
    margin: 0;
}

.conferences-wrapper {
}

.conference-main {
    width: 50%;
    float: right;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    min-width: 0;
    padding: 1.5rem;
    color: #fff;
    border-radius: 1.5rem;
    background: #00003F;
text-shadow: 0 0 1rem #000000;
    gap: 2rem;
}

.conference-cover {
    position: absolute;
    z-index: -1;
    width: 100%;
    height: 100%;
    opacity: .5;
    color: #0000007F;
    border-radius: 2rem;

    inset: 0;
    object-fit: cover;
}

.conference-info {
    flex: 1;
    min-width: 0;
}

.conference-info h3 {
    font-size: 1.4rem;
    line-height: 1.85;
    margin: 0 0 1rem;

    overflow-wrap: anywhere;
}

.conference-info p {
    font-size: 1rem;
    line-height: 2;
    margin: 0 0 1.75rem;
    color: #c2ceda;
}

.conference-info .btn {
    flex-shrink: 0;
}

.conference-list {
}

.conference-item {
    display: flex;
    align-items: center;
    min-width: 0;
    min-height: 4.25rem;
    padding: 1rem .25rem;
    transition: color .2s, padding .2s, background-color .2s;
    border-bottom: 1px solid #edf0f3;

    gap: 1rem;
}

.conference-item:last-child {
    border-bottom: 0;
}

.conference-item:hover {
    color: #aa792f;
    background: #fafbfc;

    padding-inline: .7rem;
}

.conference-item strong {
    font-size: .98rem;
    line-height: 1.85;
    flex: 1;
    min-width: 0;

    overflow-wrap: anywhere;
}

.conference-item b {
    font-size: 1.1rem;
    line-height: 1;
    flex: 0 0 auto;
    color: #9ca7b2;
}

/* ==================== ANNOUNCEMENTS ==================== */
.announcements {
    padding: 6rem 0;
    background: #fff;
}

.announcements .container {
    overflow: hidden;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 2.5rem;

    gap: 2rem;
}

.section-head>div {
    min-width: 0;
}

.section-label {
    font-size: .95rem;
    font-weight: 800;
    line-height: 1.6;
    display: block;
    margin-bottom: .4rem;
    color: #aa792f;
}

.section-head h2 {
    font-size: 2.35rem;
    font-weight: 900;
    line-height: 1.45;
    margin: 0;
}

.more-link {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.6;
    flex: 0 0 auto;
    transition: color .2s;
    white-space: nowrap;
    color: #566273;
}

.more-link:hover {
    color: #aa792f;
}

.announcement-grid {
    display: grid;

    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
}

.announcement-card {
    min-width: 0;
    padding: 2.25rem;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    border: 1px solid #edf0f3;
    border-radius: 1.5rem;
    background: #f7f8fa;
}

.announcement-card:hover {
    transform: translateY(-.35rem);
    border-color: #e4e8ec;
    box-shadow: 0 1.5rem 3rem rgba(24, 38, 54, .08);
}

.announcement-card.featured {
    color: #fff;
    background: #14263c;
}

.card-tag {
    font-size: .85rem;
    font-weight: 700;
    line-height: 1.4;
    display: inline-flex;
    align-items: center;
    min-height: 2rem;
    margin-bottom: 1.25rem;
    padding: .35rem .8rem;
    color: #aa792f;
    border-radius: 5rem;
    background: rgba(217, 164, 65, .14);
}

.announcement-card.featured .card-tag {
    color: #e4ba69;
}

.announcement-card h3 {
    font-size: 1.45rem;
    line-height: 1.85;
    max-width: 55rem;
    margin: 0 0 1rem;

    overflow-wrap: anywhere;
}

.announcement-card p {
    font-size: 1rem;
    line-height: 2;
    max-width: 55rem;
    margin: 0;
    color: #7b8794;
}

.announcement-card.featured p {
    color: #abb7c5;
}

.card-bottom {
    font-size: .9rem;
    line-height: 1.7;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    color: #9aa5b2;
    border-top: 1px solid rgba(255, 255, 255, .08);

    gap: 1rem;
}

.card-bottom a {
    font-weight: 700;
    white-space: nowrap;
    color: #aa792f;
}

/* ==================== CTA ==================== */
.cta-section {
    padding: 5rem 0;
    background: #c79a48;
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #fff;

    gap: 3rem;
}

.cta-inner>div {
    min-width: 0;
    max-width: 72rem;
}

.cta-inner span {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.7;
    display: block;
}

.cta-inner h2 {
    font-size: 2.35rem;
    line-height: 1.55;
    margin: .6rem 0;

    overflow-wrap: anywhere;
}

.cta-inner p {
    font-size: 1rem;
    line-height: 1.9;
    margin: 0;
}

.cta-inner .btn {
    flex: 0 0 auto;
}

@media (max-width: 768px) {
    .container {
        padding-inline: 1.25rem;
    }

    .header-inner {
        flex-wrap: wrap;
        padding: 1.1rem 1.25rem;

        gap: 1rem;
    }

    .main-nav {
        overflow-x: auto;
        order: 3;
        width: 100%;

        gap: 1.25rem;
        scrollbar-width: none;
    }

    .main-nav::-webkit-scrollbar {
        display: none;
    }

    .header-btn {
        margin-right: auto;
    }

    /* Hero rules retained exactly. */
    .hero {
        min-height: 0;
        padding-top: 5rem;
    }

    .hero-content {
        flex-direction: column;
        min-height: 0;

        gap: 3rem;
    }

    .hero-text,
    .hero-visual {
        width: 100%;
    }

    .hero-visual {
        min-height: 42rem;
    }

    .presentation-scene {
        width: 31rem;
    }

    .hero h1 {
        font-size: 3.7rem;
    }

    .hero-text>p {
        font-size: 1.4rem;
    }

    .ring-one {
        width: 34rem;
        height: 34rem;
    }

    .ring-two {
        width: 28rem;
        height: 28rem;
    }

    .ring-three {
        width: 22rem;
        height: 22rem;
    }

    .floating-top {
        top: 2rem;
        right: 0;
    }

    .floating-bottom {
        bottom: 2rem;
        left: 0;
    }

    /* Non-Hero mobile layout */
    .conferences,
    .announcements {
        padding: 4rem 0;
    }

    .conferences .section-head {
        margin-bottom: 1.75rem;
    }

    .conferences .section-head h2,
    .section-head h2 {
        font-size: 2rem;
        line-height: 1.5;
    }

    .conferences-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .conference-main {
        align-items: stretch;
        flex-direction: column;
        padding: 1.25rem;

        gap: 1.25rem;
    }

    .conference-cover {
        flex: 0 0 auto;
        width: 100%;
        height: 18rem;
    }

    .conference-info h3 {
        font-size: 1.2rem;
        line-height: 1.8;
        margin-bottom: .8rem;
    }

    .conference-info p {
        font-size: .95rem;
        line-height: 2;
        margin-bottom: 1.35rem;
    }

    .conference-info .btn {
        width: 100%;
    }

    .conference-list {
        padding: 0;
    }

    .conference-item {
        min-height: 3.7rem;
        padding: .85rem .15rem;
    }

    .conference-item strong {
        font-size: .92rem;
        line-height: 1.8;
    }

    .section-head {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 1.75rem;

        gap: .75rem;
    }

    .section-label {
        font-size: .88rem;
        margin-bottom: .25rem;
    }

    .more-link {
        font-size: .92rem;
    }

    .announcement-grid {
        gap: 1rem;
    }

    .announcement-card {
        padding: 1.5rem;
    }

    .card-tag {
        font-size: .8rem;
        margin-bottom: 1rem;
    }

    .announcement-card h3 {
        font-size: 1.15rem;
        line-height: 1.85;
        margin-bottom: .85rem;
    }

    .announcement-card p {
        font-size: .92rem;
        line-height: 2;
    }

    .card-bottom {
        font-size: .83rem;
        align-items: flex-start;
        flex-direction: column;
        margin-top: 1.4rem;
        padding-top: 1rem;

        gap: .55rem;
    }

    .cta-section {
        padding: 4rem 0;
    }

    .cta-inner {
        align-items: flex-start;
        flex-direction: column;

        gap: 1.5rem;
    }

    .cta-inner span {
        font-size: .92rem;
    }

    .cta-inner h2 {
        font-size: 1.8rem;
        line-height: 1.6;
        margin: .5rem 0;
    }

    .cta-inner p {
        font-size: .92rem;
    }

    .cta-inner .btn {
        width: 100%;
    }

    .btn-white {
        min-width: 0;
    }
}