:root {
    --primary: #f8fafc;
    --secondary: #f1f5f9;
    --accent: #2563eb;
    --accent-dark: #1e40af;
    --accent-hover: #1d4ed8;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --bg-main: #ffffff;
    --glass: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(15, 23, 42, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-technical: 'JetBrains Mono', monospace;
    --grid-color: rgba(37, 99, 235, 0.04);
}

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

/* Marquee Styles */
.marquee-container {
    background: linear-gradient(90deg, #1e3a8a 0%, #2563eb 50%, #1e3a8a 100%);
    color: white;
    padding: 0.5rem 0;
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.marquee-content {
    display: inline-block;
    animation: marquee 40s linear infinite;
    padding-left: 100%;
}

.marquee-container:hover .marquee-content {
    animation-play-state: paused;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.marquee-item {
    display: inline-block;
    padding: 0 2.5rem;
    font-size: 1.15rem;
    font-weight: 600;
}

.marquee-item i {
    margin-right: 0.6rem;
    color: #60a5fa;
    font-size: 1.2rem;
}

.marquee-item strong {
    color: #93c5fd;
    margin-right: 0.6rem;
    font-size: 1.15rem;
}

.marquee-separator {
    display: inline-block;
    padding: 0 1.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.4rem;
}

body {
    background-color: var(--bg-main);
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-main);
}

.glass-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
}

.hero-banner {
    position: relative;
    min-height: 60vh;
    background: linear-gradient(rgba(0, 0, 0, 0.10), rgba(0, 0, 0, 0.10)), url('bf.jpg') no-repeat center top/cover;
    display: flex;
    align-items: center;
    color: white !important;
    padding: 3rem 0;
    overflow: hidden;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    /* Stronger depth */
}

.page-header {
    position: relative;
    min-height: 50vh;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
        url('bf2.jpg') no-repeat center center/cover !important;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white !important;
    padding: 0;
    margin-bottom: 3rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.page-header .section-title {
    background: none;
    -webkit-text-fill-color: white;
    color: white !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-banner h1,
.hero-banner h2,
.hero-banner .h2,
.hero-banner .h5,
.hero-banner p {
    color: white !important;
}

.hero-banner .text-white-50 {
    color: rgba(255, 255, 255, 0.6) !important;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.6) 100%);
    z-index: 1;
}

.hero-banner .container {
    position: relative;
    z-index: 2;
}

.dark-bar {
    background: #0f172a;
    color: white;
    padding: 1.5rem 0;
    border-bottom: 2px solid var(--accent);
}

.tech-tag {
    font-family: var(--font-technical);
    font-size: 0.75rem;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.25rem 0.75rem;
    display: inline-block;
    margin-bottom: 1.5rem;
    background: rgba(37, 99, 235, 0.05);
    /* Slight tint */
}

.vertical-accent-line {
    width: 2px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    z-index: 3;
    opacity: 0.5;
    animation: scan 4s linear infinite;
}

@keyframes scan {
    0% {
        top: 0;
    }

    100% {
        top: 100%;
    }
}

.banner-info-card {
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.primary-date-badge {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(96, 165, 250, 0.1));
    border: 3px solid var(--accent);
    padding: 1.2rem 3.5rem;
    display: inline-flex;
    align-items: center;
    color: white;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.primary-date-badge:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.4);
    border-color: #60a5fa;
}

.primary-date-badge i {
    font-size: 1.8rem;
    color: var(--accent);
    filter: drop-shadow(0 0 8px rgba(37, 99, 235, 0.6));
}

.primary-date-badge .h5 {
    font-size: 1.5rem;
}

.organizer-block {
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    transition: border-color 0.3s ease;
}

.organizer-block:hover {
    border-color: var(--accent);
}

.venue-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(96, 165, 250, 0.1));
    border: 2px solid var(--accent);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    color: white;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.venue-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
    border-color: #60a5fa;
}

.venue-badge i {
    color: #60a5fa;
    font-size: 1.2rem;
}

.venue-badge span {
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}


.website-link {
    color: #60a5fa !important;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.website-link:hover {
    color: #93c5fd !important;
    text-decoration: underline !important;
    transform: translateX(5px);
    text-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}

.website-link i {
    transition: transform 0.3s ease;
}

.website-link:hover i {
    transform: rotate(360deg);
}

.x-small {
    font-size: 0.7rem;
    line-height: 1.4;
}

.text-white-50 {
    color: rgba(255, 255, 255, 0.5) !important;
}

.about-organizers {
    border-bottom: 1px solid #e2e8f0;
}

.leading-relaxed {
    line-height: 1.8;
}

@media (min-width: 992px) {
    .border-left-lg {
        border-left: 1px solid #e2e8f0;
    }
}


.btn-primary-custom {
    background-color: var(--accent);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
}

.btn-primary-custom:hover {
    background-color: var(--accent-hover);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
}

.navbar-custom {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar-custom.scrolled {
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.nav-link {
    position: relative;
    font-weight: 500;
    color: var(--text-muted) !important;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem !important;
}

.nav-link:hover {
    color: var(--text-main) !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 70%;
}

.navbar-brand {
    font-size: 1.5rem;
    background: linear-gradient(to right, var(--text-main), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

.nav-cta {
    background: var(--accent);
    color: white !important;
    border-radius: 9999px;
    padding: 0.5rem 1.5rem !important;
    margin-left: 1rem;
    transition: all 0.3s ease !important;
    border: 1px solid transparent;
}

.nav-cta:hover {
    background: transparent;
    color: var(--accent) !important;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.nav-cta::after {
    display: none !important;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(to right, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text {
    background: linear-gradient(to right, var(--accent), #60a5fa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

hr {
    border-color: var(--glass-border);
    margin: 2rem 0;
}

.footer {
    padding: 4rem 0;
    background: var(--secondary);
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

/* Redesign Enhancements */
@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(5deg);
    }

    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

.floating-blob {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    filter: blur(40px);
    z-index: -1;
    animation: float 10s ease-in-out infinite;
}

.neo-glass {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

.topic-card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: default;
}

.topic-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--accent);
    background: white;
}

.topic-card i {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), #60a5fa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Timeline Styles */
.timeline {
    position: relative;
    padding: 1rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(37, 99, 235, 0.2);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 2.5rem;
}

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

.timeline-icon {
    position: absolute;
    left: 0;
    top: 0;
    width: 42px;
    height: 42px;
    background: white;
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    z-index: 1;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.1);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-icon {
    background: var(--accent);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.3);
}

.timeline-date {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    border-radius: 99px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}