@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --blue: #0045b8;
    --blue-dark: #06265a;
    --green: #39b55a;
    --ink: #082452;
    --muted: #52627c;
    --line: #dfe8f7;
    --soft: #f4f9ff;
    --white: #ffffff;
    --shadow: 0 12px 32px rgba(8, 36, 82, 0.11);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: Inter, Arial, sans-serif;
    color: var(--ink);
    background: var(--white);
    overflow-x: hidden;
}

a { text-decoration: none; }

.container { max-width: 1180px; }

.site-nav {
    min-height: 76px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 4px 22px rgba(13, 45, 96, 0.05);
    backdrop-filter: blur(14px);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--blue-dark);
    font-weight: 800;
}

.brand-icon {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 34px;
}

.brand-icon span {
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50% 50% 50% 18%;
    background: var(--blue);
}

.brand-icon span:nth-child(1) { left: 0; top: 2px; transform: rotate(-35deg); }
.brand-icon span:nth-child(2) { right: 0; bottom: 1px; background: var(--green); transform: rotate(145deg); }
.brand-icon span:nth-child(3) { left: 8px; bottom: 5px; width: 13px; height: 13px; background: #66c8ff; }

.brand-text {
    display: block;
    max-width: 120px;
    font-size: 18px;
    line-height: 1.05;
}

.brand-text strong {
    display: block;
    color: var(--green);
}

.navbar-nav .nav-link {
    position: relative;
    color: #243a62;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 15px !important;
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover { color: var(--blue); }

.navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 15px;
    right: 15px;
    bottom: 2px;
    height: 2px;
    background: var(--blue);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 5px;
    min-height: 46px;
    padding: 13px 25px;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .02em;
}

.btn-primary-brand {
    color: var(--white);
    background: var(--blue);
    border: 1px solid var(--blue);
    box-shadow: 0 10px 18px rgba(0, 69, 184, 0.22);
}

.btn-primary-brand:hover {
    color: var(--white);
    background: #003c9d;
    border-color: #003c9d;
}

.btn-outline-brand {
    color: var(--blue);
    background: var(--white);
    border: 1px solid var(--blue);
}

.btn-outline-brand:hover {
    color: var(--white);
    background: var(--blue);
}

.btn-light-brand {
    color: var(--blue-dark);
    background: var(--white);
    border: 1px solid var(--white);
}

.hero-section {
    position: relative;
    min-height: 575px;
    padding: 116px 0 92px;
    background:
        radial-gradient(circle at 88% 38%, rgba(220, 239, 255, .72) 0, rgba(246, 251, 255, .55) 34%, rgba(255,255,255,0) 58%),
        #ffffff;
    overflow: hidden;
}

.hero-bg-art {
    display: none;
}

.hero-row { min-height: 440px; }

.section-kicker {
    margin: 0 0 10px;
    color: var(--blue);
    text-transform: uppercase;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: .02em;
}

.section-kicker span,
.section-kicker.blue { color: var(--green); }

.section-kicker.blue {
    color: var(--blue);
    font-size: 13px;
}

.hero-copy h1 {
    margin: 0 0 16px;
    color: var(--blue-dark);
    font-size: clamp(46px, 5.3vw, 70px);
    line-height: 1.05;
    font-weight: 800;
    letter-spacing: 0;
}

.hero-copy h1 span { color: var(--green); }

.hero-subtitle {
    margin: 0 0 28px;
    color: #384b70;
    font-size: 20px;
    font-weight: 500;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 28px;
    margin-bottom: 28px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.meta-item i {
    width: 28px;
    color: var(--blue);
    font-size: 27px;
}

.meta-item strong {
    display: block;
    color: var(--ink);
    font-size: 15px;
    text-transform: uppercase;
}

.meta-item small {
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
}

.meta-divider {
    width: 1px;
    height: 42px;
    background: #bdcce3;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-visual-wrap {
    position: relative;
    min-height: 455px;
}

.hero-visual {
    position: absolute;
    top: -28px;
    right: -95px;
    width: 780px;
    max-width: none;
    height: 520px;
    overflow: visible;
    filter: drop-shadow(0 22px 34px rgba(0, 69, 184, .08));
}

.hero-visual::before {
    display: none;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
}

.molecule {
    display: none;
}

.m1 { top: 65px; left: 60px; }
.m2 { right: 28px; top: 85px; width: 42px; height: 42px; }
.m3 { right: 70px; bottom: 62px; width: 24px; height: 24px; }

.stats-wrap {
    position: relative;
    z-index: 4;
    margin-top: -48px;
}

.stats-card {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.stat-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    min-height: 116px;
    border-right: 1px solid var(--line);
}

.stat-item:last-child { border-right: 0; }

.stat-item i {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    color: var(--blue);
    background: #eef6ff;
    border-radius: 50%;
    font-size: 25px;
}

.stat-item strong {
    display: block;
    color: var(--blue-dark);
    font-size: 34px;
    line-height: 1;
    font-weight: 800;
}

.stat-item span {
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
}

.section-space { padding: 58px 0 20px; }

.about-section h2,
.section-head h2 {
    margin: 0;
    color: var(--blue-dark);
    font-size: clamp(26px, 3vw, 38px);
    line-height: 1.1;
    font-weight: 800;
}

.body-copy {
    max-width: 570px;
    margin: 18px 0 25px;
    color: #435574;
    font-size: 15px;
    line-height: 1.75;
}

.venue-card {
    position: relative;
    height: 255px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.venue-badges {
    position: absolute;
    left: 28px;
    right: 28px;
    bottom: 18px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: rgba(255,255,255,.92);
    border-radius: 5px;
    overflow: hidden;
}

.venue-badges span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 52px;
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
    border-right: 1px solid #e4edf7;
}

.venue-badges span:last-child { border-right: 0; }
.venue-badges i { color: var(--green); }

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 18px;
}

.text-link {
    color: var(--blue);
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 800;
    white-space: nowrap;
}

/* Swiper Slide Equal Height Fix */
.speaker-marquee .swiper-slide {
    height: auto !important;
    display: flex;
}

.speaker-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 35px 25px;
    background: var(--white);
    border: 1px solid #e5edf7;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(8, 36, 82, .04);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.speaker-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(8, 36, 82, .12);
    border-color: #d0e1f9;
}

.speaker-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--blue), var(--green));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.speaker-card:hover::before {
    opacity: 1;
}

.speaker-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 4px solid #f4f9ff;
    box-shadow: 0 8px 16px rgba(0,0,0,0.06);
    transition: transform 0.3s ease;
}

.speaker-card:hover img {
    transform: scale(1.05);
}

.speaker-card h3 {
    margin: 0 0 6px;
    color: var(--blue-dark);
    font-size: 18px;
    line-height: 1.3;
    font-weight: 800;
}

.speaker-card p {
    margin: 0 0 15px;
    color: #516078;
    font-size: 13px;
    line-height: 1.5;
    font-weight: 500;
}

.speaker-card span {
    display: inline-block;
    margin-bottom: 25px;
    padding: 6px 14px;
    color: var(--blue);
    background: #edf5ff;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.speaker-card a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    transition: color 0.2s ease;
}

.speaker-card a:hover {
    color: var(--blue-dark);
}

/* Custom Swiper Arrows */
.swiper-button-next,
.swiper-button-prev {
    width: 48px !important;
    height: 48px !important;
    background: var(--white) !important;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(8, 36, 82, 0.08);
    color: var(--blue) !important;
    border: 1px solid #e5edf7;
    margin-top: -24px !important;
    transition: all 0.3s ease;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 20px !important;
    font-weight: 800;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: var(--blue) !important;
    color: var(--white) !important;
    border-color: var(--blue);
    transform: scale(1.1);
}

.pager-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding-top: 18px;
}

.pager-dots span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #d8e2f0;
}

.pager-dots .active {
    width: 18px;
    border-radius: 7px;
    background: var(--blue);
}

/* --- NEW AGENDA UI --- */

.agenda-tabs {
    gap: 12px;
}

.agenda-tabs .nav-link {
    color: var(--blue-dark);
    background: var(--white);
    border: 1px solid #e0eafa;
    border-radius: 50px;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(8, 36, 82, 0.04);
    transition: all 0.3s ease;
}

.agenda-tabs .nav-link:hover {
    background: #f4f9ff;
    transform: translateY(-2px);
}

.agenda-tabs .nav-link.active {
    background: var(--blue);
    color: var(--white);
    border-color: var(--blue);
    box-shadow: 0 8px 20px rgba(0, 69, 184, 0.2);
}

.session-card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid #e0eafa;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(8, 36, 82, 0.05);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.session-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(8, 36, 82, 0.09);
}

.session-time {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    border-left: 5px solid;
    font-weight: 700;
    font-size: 15px;
}

.session-time i {
    font-size: 18px;
}

.session-details {
    padding: 24px;
    flex: 1;
}

.session-details h4 {
    margin: 0 0 8px;
    color: var(--blue-dark);
    font-size: 18px;
    line-height: 1.4;
    font-weight: 800;
}

.session-role {
    font-size: 14px;
    color: #5a6d87;
    line-height: 1.5;
    font-weight: 500;
}

@media (min-width: 768px) {
    .session-card {
        flex-direction: row;
        align-items: stretch;
    }
    
    .session-time {
        width: 220px;
        flex-shrink: 0;
        padding: 24px;
    }
    
    .session-details {
        padding: 24px 30px;
        border-left: 1px solid #e0eafa;
    }
}

.why-section { padding: 24px 0 24px; }

.why-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.why-grid article {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 35px 20px;
    background: var(--white);
    border: 1px solid #e5edf7;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(8, 36, 82, .04);
    transition: transform 0.3s ease;
}

.why-grid article:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(8, 36, 82, .08);
}

.why-grid i {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    background: #eef6ff;
    border-radius: 50%;
    font-size: 26px;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.why-grid article:hover i {
    transform: scale(1.1);
}

.why-grid article:nth-child(2) i { color: var(--green); background: #eaf8ef; }

.why-grid h3 {
    margin: 0 0 12px;
    color: var(--blue-dark);
    font-size: 17px;
    line-height: 1.3;
    font-weight: 800;
}

.why-grid p {
    margin: 0;
    color: #52627c;
    font-size: 13px;
    line-height: 1.5;
}

.register-band { padding: 0 0 20px; }

.register-card {
    display: grid;
    grid-template-columns: 96px 1fr auto;
    align-items: center;
    gap: 20px;
    min-height: 106px;
    padding: 24px 48px;
    color: var(--white);
    background:
        radial-gradient(circle at 3% 20%, rgba(102, 200, 255, .35), transparent 16%),
        radial-gradient(circle at 96% 22%, rgba(102, 200, 255, .25), transparent 15%),
        linear-gradient(90deg, #005bd6, #003ca2);
    border-radius: 9px;
    box-shadow: 0 14px 30px rgba(0, 69, 184, .22);
}

.register-card > i {
    color: #d9f2ff;
    font-size: 54px;
}

.register-card h2 {
    margin: 0 0 6px;
    color: var(--white);
    font-size: 26px;
    font-weight: 800;
}

.register-card p {
    margin: 0;
    max-width: 560px;
    color: rgba(255,255,255,.9);
    font-size: 14px;
    font-weight: 600;
}

.site-footer {
    padding: 18px 0 0;
    background: var(--white);
}

.footer-brand { margin-bottom: 18px; }

.site-footer p {
    color: #465977;
    font-size: 13px;
    line-height: 1.65;
}

.site-footer h3 {
    margin: 0 0 15px;
    color: var(--blue-dark);
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 800;
}

.site-footer ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 35px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-footer a {
    color: #465977;
    font-size: 12px;
    font-weight: 600;
}

.site-footer .text-link { color: var(--blue); }

.socials {
    display: flex;
    gap: 14px;
}

.socials a {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border: 1px solid #dbe5f2;
    border-radius: 50%;
    color: #455d80;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-top: 28px;
    padding: 16px 0;
    border-top: 1px solid #e3ebf4;
    color: #5a6d87;
    font-size: 12px;
}

.footer-bottom div {
    display: flex;
    gap: 22px;
}

@media (max-width: 1199px) {
    .speaker-grid { grid-template-columns: repeat(3, 1fr); }
    .why-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 991px) {
    .site-nav { min-height: 68px; }
    .navbar-brand { max-width: calc(100% - 80px); }
    .navbar-collapse {
        margin-top: 14px;
        padding: 14px;
        background: var(--white);
        border: 1px solid var(--line);
        border-radius: 8px;
    }

    .hero-section { padding-top: 98px; }
    .hero-visual-wrap {
        min-height: 390px;
        margin-top: 28px;
    }
    .hero-visual {
        position: relative;
        top: auto;
        right: auto;
        width: 100%;
        max-width: 720px;
        height: 390px;
        margin: 0 auto;
    }
    .stats-card { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2) { border-right: 0; }
    .stat-item:nth-child(1),
    .stat-item:nth-child(2) { border-bottom: 1px solid var(--line); }
    .venue-badges { grid-template-columns: 1fr; }
    .venue-badges span { border-right: 0; border-bottom: 1px solid #e4edf7; }
    .section-head { align-items: flex-start; flex-direction: column; }
    .register-card { grid-template-columns: 70px 1fr; }
    .register-card .btn { grid-column: 1 / -1; width: 100%; }
}

@media (max-width: 767px) {
    .hero-section { padding-bottom: 78px; }
    .hero-copy h1 { font-size: 43px; }
    .hero-subtitle { font-size: 17px; }
    .hero-meta { gap: 16px; }
    .meta-divider { display: none; }
    .hero-visual-wrap { min-height: 270px; }
    .hero-visual { height: 270px; }
    .stats-card,
    .speaker-grid,
    .why-grid { grid-template-columns: 1fr; }
    .stat-item { border-right: 0; border-bottom: 1px solid var(--line); }
    .stat-item:last-child { border-bottom: 0; }
    .speaker-card { grid-template-columns: 84px 1fr; }
    .program-card { grid-template-columns: 1fr; gap: 18px; }
    .program-icon::before { display: none; }
    .register-card {
        grid-template-columns: 1fr;
        padding: 28px;
        text-align: center;
    }
    .register-card > i { margin: 0 auto; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}