/* Tech Convergence 2025 - Landing Page Styles */

/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Professional Neutral Theme - Slightly Darker Backgrounds */
:root {
    /* Core colors */
    --background: hsl(210, 15%, 92%);   /* Softer light gray */
    --background-header: hsl(122, 100%, 20.6%);
    --foreground: hsl(220, 25%, 15%);   /* Neutral dark text */
    --card: hsl(0, 0%, 98%);            /* Very light gray card */
    --card-foreground: hsl(220, 25%, 15%);
    --popover: hsl(0, 0%, 98%);
    --popover-foreground: hsl(220, 25%, 15%);
    --primary: hsl(190, 80%, 42%);      /* Professional cyan */
    --primary-foreground: hsl(0, 0%, 100%);
    --secondary: hsl(210, 15%, 85%);    /* Mid gray for contrast */
    --secondary-foreground: hsl(220, 25%, 20%);
    --muted: hsl(210, 15%, 85%);
    --muted-foreground: hsl(215, 15%, 40%);
    --accent: hsl(260, 65%, 50%);       /* Purple accent */
    --accent-foreground: hsl(0, 0%, 100%);
    --destructive: hsl(0, 65%, 50%);    /* Softer red */
    --destructive-foreground: hsl(0, 0%, 100%);
    --border: hsl(214, 15%, 75%);
    --input: hsl(214, 15%, 80%);
    --ring: hsl(190, 80%, 42%);
    --radius: 0.75rem;

    /* Brand-inspired colors */
    --tech-cyan: hsl(190, 80%, 42%);
    --tech-green: hsl(140, 60%, 38%);
    --tech-purple: hsl(260, 65%, 50%);
    --tech-blue: hsl(220, 65%, 50%);
    --tech-navy: hsl(220, 20%, 25%);
    --tech-dark: hsl(220, 20%, 15%);

    /* Gradients */
   --gradient-hero: linear-gradient(135deg, var(--tech-navy), var(--tech-dark));
    --gradient-accent: linear-gradient(135deg, var(--tech-cyan), #006904);

    --gradient-card: linear-gradient(135deg, var(--card), hsl(210, 15%, 90%));

    /* Effects */
    --glow-cyan: 0 0 20px hsl(190, 80%, 42%, 0.25);
    --glow-green: 0 0 25px hsl(140, 60%, 38%, 0.25);
    --glow-blue: 0 0 20px hsl(220, 65%, 50%, 0.25);
    --shadow-elevated: 0 8px 20px hsl(220, 20%, 10%, 0.15);

    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-glow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}


/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
    40%, 43% { transform: translateY(-15px); }
    70% { transform: translateY(-7px); }
    90% { transform: translateY(-3px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 20px hsl(190, 100%, 50%, 0.3); }
    50% { box-shadow: 0 0 40px hsl(120, 100%, 40%, 0.6); }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: hsla(var(--background), 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo {
    
    height: 50px;
    
}

.brand-name {
    font-size: 1.25rem;
    font-weight: bold;
}

.nav {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    color: var(--muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--foreground);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
    text-decoration: none;
    padding: 0.5rem 1rem;
    height: 2.5rem;
}

.btn-register {
    background: var(--tech-cyan);
    color: white;
    font-weight: bold;
    border: 2px solid var(--tech-cyan);
    box-shadow: var(--glow-cyan);
}

.btn-register:hover {
    background: transparent;
    color: var(--tech-cyan);
}

.btn-hero {
    background: var(--gradient-accent);
    color: white;
    font-weight: 600;
    box-shadow: var(--glow-cyan);
    padding: 0.75rem 2.5rem;
    height: 3rem;
    font-size: 1rem;
}

.btn-hero:hover {
    box-shadow: var(--glow-green);
    transform: scale(1.05);
}

.btn-outline {
    border: 2px solid var(--border);
    background: var(--background);
    color: var(--foreground);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--accent-foreground);
}

.btn-outline-glow {
    border: 2px solid var(--tech-cyan);
    background: transparent;
    color: var(--tech-cyan);
    box-shadow: var(--glow-cyan);
    padding: 0.75rem 2.5rem;
    height: 3rem;
    font-size: 1rem;
}

.btn-outline-glow:hover {
    background: var(--tech-cyan);
    color: white;
    box-shadow: var(--glow-green);
}

.btn-youtube {
    border: 1px solid #ef4444;
    background: transparent;
    color: #ef4444;
}

.btn-youtube:hover {
    background: rgba(239, 68, 68, 0.1);
}

.btn-group {
    border: 1px solid white;
    background: transparent;
    color: white;
}

.btn-group:hover {
    background: white;
    color: var(--tech-dark);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-bg-image {
    position: absolute;
    inset: 0;
    background-image: url('hero-convergence.png');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent, hsla(var(--tech-navy), 0.5), hsla(var(--tech-navy), 0.8));
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    animation: float 3s ease-in-out infinite;
}

.floating-1 {
    top: 5rem;
    left: 2.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--tech-cyan);
}

.floating-2 {
    top: 8rem;
    right: 5rem;
    width: 1.5rem;
    height: 1.5rem;
    background: var(--tech-blue);
    animation-delay: 1s;
}

.floating-3 {
    bottom: 10rem;
    left: 5rem;
    width: 0.75rem;
    height: 0.75rem;
    background: var(--tech-purple);
    animation-delay: 2s;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 4xl;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: hsla(var(--tech-cyan), 0.2);
    border-radius: 9999px;
    color: var(--tech-cyan);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--tech-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.75rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--tech-cyan), var(--tech-blue), var(--tech-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 5rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--muted);
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.5rem;
    }
}

.hero-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 3rem;
    color: var(--muted);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-item i {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--tech-cyan);
}

.hero-actions {
    display: flex;
    flex-col: gap-1rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 4rem;
}

@media (min-width: 640px) {
    .hero-actions {
        flex-direction: row;
    }
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 24rem;
    margin: 0 auto;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.875rem;
    font-weight: bold;
    color: var(--tech-cyan);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 1.5rem;
    height: 2.5rem;
    border: 2px solid var(--tech-cyan);
    border-radius: 9999px;
    display: flex;
    justify-content: center;
}

.scroll-dot {
    width: 0.25rem;
    height: 0.75rem;
    background: var(--tech-cyan);
    border-radius: 9999px;
    margin-top: 0.5rem;
    animation: pulse 2s infinite;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-event-details {
    background: hsla(var(--muted), 0.3);
}

.section-about {
    background: linear-gradient(to bottom, var(--background), hsla(var(--muted), 0.2));
}

.section-theme {
    background: var(--background);
    position: relative;
    overflow: hidden;
}

.section-gallery {
    background: hsla(var(--muted), 0.3);
}

.section-speakers {
    background: var(--background);
}

.section-why-attend {
    background: hsla(var(--muted), 0.3);
}

.section-activities {
    background: var(--background);
}

.section-program {
    background: var(--background);
}

.section-brochure {
    background: hsla(var(--muted), 0.3);
}

.section-sponsors {
    background: hsla(var(--muted), 0.3);
}

.section-registration {
    background: hsla(var(--muted), 0.3);
}

.section-faq {
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.25rem;
    color: var(--muted-foreground);
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    transition: var(--transition-smooth);
}

.card-content {
    padding: 1.5rem;
}

.hover-glow-cyan:hover {
    box-shadow: var(--glow-cyan);
}

.hover-glow-blue:hover {
    box-shadow: var(--glow-blue);
}

.hover-glow-green:hover {
    box-shadow: var(--glow-green);
}

/* Event Details */
.details-grid {
    display: grid;
    gap: 2rem;
    max-width: 4xl;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .details-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.detail-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.detail-icon.tech-cyan {
    background: hsla(var(--tech-cyan), 0.2);
    color: var(--tech-cyan);
}

.detail-icon.tech-blue {
    background: hsla(var(--tech-blue), 0.2);
    color: var(--tech-blue);
}

.detail-icon.tech-purple {
    background: hsla(var(--tech-purple), 0.2);
    color: var(--tech-purple);
}

.detail-icon i {
    width: 1.5rem;
    height: 1.5rem;
}

.card-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--muted-foreground);
}

/* About Section */
.features-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    box-shadow: var(--shadow-elevated);
    transform: scale(1.05);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: var(--muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-icon i {
    width: 2rem;
    height: 2rem;
    color: var(--tech-cyan);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--muted-foreground);
    text-align: center;
}

.about-showcase {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: 1rem;
    padding: 2rem;
}

@media (min-width: 768px) {
    .about-showcase {
        padding: 3rem;
    }
}

.showcase-content {
    display: grid;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .showcase-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

.showcase-content h3 {
    font-size: 1.875rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background-image: url('images/africa.png');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;   /* fills the element */
    height: 100%;             /* take parent height */
}


.showcase-content p {
    color: var(--muted-foreground);
    margin-bottom: 1.5rem;
    line-height: 1.75;
}

.showcase-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.showcase-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
}

.dot.tech-cyan {
    background: var(--tech-cyan);
}

.dot.tech-blue {
    background: var(--tech-blue);
}

.dot.tech-purple {
    background: var(--tech-purple);
}

.showcase-visual {
    position: relative;
}

.visual-bg {
    aspect-ratio: 1;
    background-image: url('images/banner.png');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;   /* fills the element */
    border-radius: 1rem;
    opacity: 0.6;
}

.visual-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.visual-year {
    font-size: 3.75rem;
    font-weight: bold;
    color: var(--tech-cyan);
    margin-bottom: 0.5rem;
}

.visual-text {
    font-size: 1.25rem;
    color: var(--foreground);
}

/* Theme Section */
.theme-bg-elements {
    position: absolute;
    inset: 0;
    opacity: 0.1;
}

.bg-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(3rem);
}

.bg-element-1 {
    top: 5rem;
    left: 2.5rem;
    width: 8rem;
    height: 8rem;
    background: var(--tech-cyan);
}

.bg-element-2 {
    bottom: 5rem;
    right: 2.5rem;
    width: 10rem;
    height: 10rem;
    background: var(--tech-blue);
}

.theme-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-accent);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    color: var(--tech-dark);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.theme-badge i {
    width: 1rem;
    height: 1rem;
}

.theme-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .theme-title {
        font-size: 3.75rem;
    }
}

.theme-title-line {
    display: block;
}

.theme-pillars {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .theme-pillars {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .theme-pillars {
        grid-template-columns: repeat(4, 1fr);
    }
}

.pillar-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.pillar-card:hover {
    box-shadow: var(--glow-cyan);
}

.pillar-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition-smooth);
}

.pillar-card:hover .pillar-icon {
    animation: float 3s ease-in-out infinite;
}

.pillar-icon i {
    width: 2rem;
    height: 2rem;
    color: var(--tech-dark);
}

.pillar-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.pillar-card p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    flex-grow: 1;
}

.theme-deep-dive {
    max-width: 4xl;
    margin: 0 auto;
}

.theme-content {
    display: grid;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
}

@media (min-width: 768px) {
    .theme-content {
        grid-template-columns: repeat(2, 1fr);
        padding: 3rem;
    }
}

.theme-explanation h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--tech-cyan);
}

.theme-explanation p {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
    line-height: 1.75;
}

.theme-points {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.theme-point {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.theme-point .dot {
    margin-top: 0.5rem;
}

.theme-point h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.theme-point p {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid hsla(var(--border), 0.5);
    transition: var(--transition-smooth);
}

.gallery-item:hover {
    box-shadow: var(--glow-cyan);
}

.gallery-image {
    width: 100%;
    height: 16rem;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover .gallery-image {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, hsla(var(--tech-dark), 0.8), transparent, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-caption {
    color: white;
    font-weight: 500;
}

/* Speakers Section */
.speakers-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.speaker-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.speaker-card:hover {
    box-shadow: var(--glow-blue);
}

.speaker-avatar {
    position: relative;
    margin-bottom: 1.5rem;
}

.speaker-image {
    width: 10rem;
    height: 10rem;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto;
    padding: 0.25rem;
    background: var(--gradient-accent);
}

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

.social-link {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-link.tech-cyan {
    background: hsla(var(--tech-cyan), 0.2);
    color: var(--tech-cyan);
}

.social-link.tech-blue {
    background: hsla(var(--tech-blue), 0.2);
    color: var(--tech-blue);
}

.social-link i {
    width: 1rem;
    height: 1rem;
}

.speaker-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.speaker-role {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.speaker-role.tech-cyan {
    color: var(--tech-cyan);
}

.speaker-company {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.speaker-bio {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

/* Why Attend & Activities Sections */
.reasons-grid,
.activities-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 5rem;
}

@media (min-width: 768px) {
    .reasons-grid,
    .activities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .reasons-grid,
    .activities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.reason-card,
.activity-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.reason-card:hover,
.activity-card:hover {
    box-shadow: var(--glow-cyan);
}

.reason-icon,
.activity-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition-smooth);
}

.reason-card:hover .reason-icon,
.activity-card:hover .activity-icon {
    animation: glow-pulse 2s ease-in-out infinite;
}

.activity-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius);
}

.activity-card:hover .activity-icon {
    animation: float 3s ease-in-out infinite;
}

.reason-icon i,
.activity-icon i {
    width: 2rem;
    height: 2rem;
    color: var(--tech-dark);
}

.activity-icon i {
    width: 1.75rem;
    height: 1.75rem;
}

.reason-card h3,
.activity-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.reason-card p,
.activity-card p {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.activity-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.highlight span {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.audience-grid {
    display: grid;
    gap: 1.5rem;
    max-width: 6xl;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .audience-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.audience-card {
    background: var(--card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.audience-card:hover {
    background: var(--gradient-card);
    box-shadow: var(--glow-blue);
}

.audience-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--tech-cyan);
}

.audience-card p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.tech-cyan {
    color: var(--tech-cyan);
}

/* Additional Features */
.additional-features {
    display: grid;
    gap: 2rem;
    max-width: 4xl;
    margin: 0 auto;
    margin-top: 4rem;
}

@media (min-width: 768px) {
    .additional-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

.gradient-border {
    background: var(--gradient-accent);
    padding: 1px;
    border-radius: var(--radius);
}

.feature-content {
    background: var(--tech-dark);
    border-radius: calc(var(--radius) - 1px);
    padding: 2rem;
    height: 100%;
}

.feature-content h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 1rem;
}

.feature-content p {
    color: #d1d5db;
    margin-bottom: 1rem;
}

.feature-content ul {
    color: #d1d5db;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Program Section */
.program-tabs {
    max-width: 4xl;
    margin: 0 auto;
}

.tabs-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin-bottom: 2rem;
    background: var(--muted);
    border-radius: var(--radius);
    padding: 0.25rem;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: calc(var(--radius) - 2px);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--muted-foreground);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.tab-btn.active {
    background: var(--background);
    color: var(--foreground);
    box-shadow: 0 1px 3px hsla(0, 0%, 0%, 0.1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.program-sessions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.session {
    background: var(--card);
    border-left: 4px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .session {
        flex-direction: row;
        align-items: center;
    }
}

.session:hover {
    box-shadow: 0 4px 6px hsla(0, 0%, 0%, 0.1);
}

.session.keynote {
    border-left-color: var(--tech-cyan);
    background: linear-gradient(135deg, var(--card), hsla(var(--tech-cyan), 0.05));
}

.session.panel {
    border-left-color: var(--tech-blue);
    background: linear-gradient(135deg, var(--card), hsla(var(--tech-blue), 0.05));
}

.session.workshop {
    border-left-color: var(--tech-purple);
    background: linear-gradient(135deg, var(--card), hsla(var(--tech-purple), 0.05));
}

.session.break {
    border-left-color: var(--muted-foreground);
    background: linear-gradient(135deg, var(--card), hsla(var(--muted), 0.2));
}

.session.networking,
.session.competition,
.session.fireside,
.session.demo {
    border-left-color: var(--accent);
    background: linear-gradient(135deg, var(--card), hsla(var(--accent), 0.05));
}

.session-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--tech-cyan);
    font-weight: 600;
    flex-shrink: 0;
    width: 100%;
}

@media (min-width: 768px) {
    .session-time {
        width: 12rem;
    }
}

.session-time i {
    width: 1rem;
    height: 1rem;
}

.session-details {
    flex-grow: 1;
}

.session-details h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.session-speaker {
    color: var(--muted-foreground);
    margin-bottom: 0.25rem;
}

.session-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.session-location i {
    width: 0.75rem;
    height: 0.75rem;
}

/* Brochure Section */
.brochure-grid {
    display: grid;
    gap: 2rem;
    max-width: 4xl;
    margin: 0 auto 3rem;
}

@media (min-width: 768px) {
    .brochure-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.brochure-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.brochure-icon {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.brochure-icon.tech-cyan {
    background: hsla(var(--tech-cyan), 0.2);
    color: var(--tech-cyan);
}

.brochure-icon.tech-blue {
    background: hsla(var(--tech-blue), 0.2);
    color: var(--tech-blue);
}

.brochure-icon i {
    width: 2rem;
    height: 2rem;
}

.brochure-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.brochure-card p {
    color: var(--muted-foreground);
    margin-bottom: 1.5rem;
}

.qr-code {
    width: 12rem;
    height: 12rem;
    background: white;
    border-radius: var(--radius);
    padding: 1rem;
    margin: 0 auto 1.5rem;
}

.qr-pattern {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #000 25%, transparent 25%),
                linear-gradient(-45deg, #000 25%, transparent 25%),
                linear-gradient(45deg, transparent 75%, #000 75%),
                linear-gradient(-45deg, transparent 75%, #000 75%);
    background-size: 0.5rem 0.5rem;
    background-position: 0 0, 0 0.25rem, 0.25rem -0.25rem, -0.25rem 0;
    border-radius: calc(var(--radius) - 4px);
}

.qr-support {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.download-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: hsla(var(--muted), 0.5);
    border-radius: var(--radius);
}

.download-item span:first-child {
    font-size: 0.875rem;
}

.file-size {
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

.brochure-info {
    max-width: 4xl;
    margin: 0 auto;
}

.brochure-info .card-content {
    padding: 1.5rem;
}

.brochure-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.info-grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 768px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.info-item strong {
    display: block;
    color: var(--foreground);
    margin-bottom: 0.25rem;
}

.info-item p {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Sponsors Section */
.sponsor-tier {
    margin-bottom: 4rem;
}

.tier-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.tier-title.tech-cyan {
    color: var(--tech-cyan);
}

.tier-title.tech-blue {
    color: var(--tech-blue);
}

.sponsors-grid {
    display: grid;
    gap: 1.5rem;
    margin: 0 auto;
}

.sponsors-grid.platinum {
    grid-template-columns: repeat(2, 1fr);
    max-width: 4xl;
}

.sponsors-grid.gold {
    grid-template-columns: repeat(2, 1fr);
    max-width: 5xl;
}

@media (min-width: 768px) {
    .sponsors-grid.gold {
        grid-template-columns: repeat(4, 1fr);
    }
}

.sponsors-grid.silver {
    grid-template-columns: repeat(3, 1fr);
    max-width: 6xl;
}

@media (min-width: 768px) {
    .sponsors-grid.silver {
        grid-template-columns: repeat(6, 1fr);
    }
}


.sponsors-grid.silver2 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 6xl;
}

@media (min-width: 768px) {
    .sponsors-grid.silver2 {
        grid-template-columns: repeat(6, 1fr);
    }
}

.sponsors-grid.media {
    grid-template-columns: repeat(2, 1fr);
    max-width: 3xl;
}

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

.sponsor-card {
    background: var(--card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.sponsor-logo {
    height: 4rem;
    margin: 0 auto 1rem;
   
}

.sponsors-grid.platinum .sponsor-logo {
    height: 4rem;
}

.sponsors-grid.gold .sponsor-logo {
    height: 4rem;
}

.sponsors-grid.silver .sponsor-logo {
    height: 4rem;
}

.sponsors-grid.silver2 .sponsor-logo {
    height: 4rem;
}

.sponsors-grid.media .sponsor-logo {
    height: 4rem;
}

.sponsor-card:hover .sponsor-logo {
    filter: none;
}

.sponsor-card h4 {
    font-size: 1.125rem;
    font-weight: 500;
}

.sponsors-grid.gold .sponsor-card h4 {
    font-size: 0.875rem;
}

.sponsors-grid.silver .sponsor-card h4 {
    font-size: 0.75rem;
}

.sponsors-grid.silver2 .sponsor-card h4 {
    font-size: 0.75rem;
}

.sponsors-grid.media .sponsor-card h4 {
    font-size: 0.75rem;
}

/* Registration Section */
.tickets-grid {
    display: grid;
    gap: 2rem;
    max-width: 6xl;
    margin: 0 auto 4rem;
}

@media (min-width: 768px) {
    .tickets-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.ticket-card {
    position: relative;
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.ticket-card.popular {
    transform: scale(1.05);
    box-shadow: var(--glow-cyan);
    border-color: hsla(var(--tech-cyan), 0.5);
}

.ticket-card:not(.popular):hover {
    box-shadow: var(--glow-blue);
    transform: scale(1.02);
}

.ticket-badge {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--tech-blue);
    color: white;
}

.ticket-card.popular .ticket-badge {
    background: var(--gradient-accent);
    color: var(--tech-dark);
}

.ticket-content {
    padding: 2rem;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.ticket-content h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.ticket-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 1.875rem;
    font-weight: bold;
    color: var(--tech-cyan);
}

.original-price {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    text-decoration: line-through;
}

.price-note {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    margin-bottom: 1.5rem;
}

.ticket-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.ticket-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.ticket-features i {
    width: 1rem;
    height: 1rem;
    color: var(--tech-cyan);
    flex-shrink: 0;
}

.registration-stats {
    display: grid;
    gap: 2rem;
    max-width: 4xl;
    margin: 0 auto 3rem;
}

@media (min-width: 768px) {
    .registration-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stat-card {
    background: var(--gradient-card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
}

.stat-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    background: hsla(var(--tech-cyan), 0.2);
    color: var(--tech-cyan);
}

.stat-icon.youtube {
    background: hsla(239, 68%, 68%, 0.2);
    color: #ef4444;
}

.stat-icon i {
    width: 2rem;
    height: 2rem;
}

.stat-card h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
}

.progress-bar {
    width: 100%;
    background: var(--muted);
    border-radius: 9999px;
    height: 0.5rem;
    margin-bottom: 0.5rem;
}

.progress-fill {
    background: var(--gradient-accent);
    height: 100%;
    border-radius: 9999px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.group-discounts {
    background: var(--gradient-accent);
    padding: 1px;
    border-radius: var(--radius);
    max-width: 4xl;
    margin: 0 auto;
}

.group-content {
    background: var(--tech-dark);
    border-radius: calc(var(--radius) - 1px);
    padding: 2rem;
    text-align: center;
}

.group-content h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 1rem;
}

.group-content p {
    color: #d1d5db;
    margin-bottom: 1.5rem;
}

.discount-tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.discount-tier {
    text-align: center;
}

.discount-percent {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--tech-cyan);
}

.discount-size {
    color: #d1d5db;
}

/* FAQ Section */
.faq-container {
    max-width: 4xl;
    margin: 0 auto 3rem;
}

.faq-item {
    background: var(--card);
    border: 1px solid hsla(var(--border), 0.5);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    box-shadow: var(--glow-cyan);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 1.125rem;
    font-weight: 500;
}

.faq-question:hover {
    color: var(--tech-cyan);
}

.faq-question i {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--muted-foreground);
    line-height: 1.75;
}

.faq-contact {
    text-align: center;
}

.faq-contact p {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
}

.contact-link {
    color: var(--tech-cyan);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.contact-link:hover {
    color: var(--tech-blue);
}

/* Footer */
.footer {
    background: var(--tech-dark);
    border-top: 1px solid hsla(var(--border), 0.5);
    color: white;
}

.footer-content {
    display: grid;
    gap: 2rem;
    padding: 4rem 0;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--muted-foreground);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted-foreground);
    transition: var(--transition-smooth);
    text-decoration: none;
    cursor: pointer;
}

.social-link:hover {
    color: var(--foreground);
    background: hsla(var(--foreground), 0.1);
}

.social-link i {
    width: 1rem;
    height: 1rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--muted-foreground);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--tech-cyan);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--muted-foreground);
}

.contact-item i {
    width: 1rem;
    height: 1rem;
    color: var(--tech-cyan);
}

.newsletter {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.newsletter-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--muted);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) - 2px);
    color: var(--foreground);
    outline: none;
    transition: var(--transition-smooth);
}

.newsletter-input:focus {
    border-color: var(--tech-cyan);
    box-shadow: 0 0 0 2px hsla(var(--tech-cyan), 0.2);
}

.newsletter-btn {
    padding: 0.75rem 1rem;
    height: auto;
}

.footer-bottom {
    border-top: 1px solid hsla(var(--border), 0.5);
    padding: 2rem 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--muted-foreground);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .features-grid,
    .reasons-grid,
    .activities-grid {
        grid-template-columns: 1fr;
    }
    
    .tickets-grid {
        grid-template-columns: 1fr;
    }
    
    .ticket-card:not(.popular) {
        transform: none;
    }
    
    .ticket-card.popular {
        transform: none;
        order: -1;
    }
}

/* Utilities */
.hover-scale {
    transition: transform 0.2s ease;
}

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

/* Print Styles */
@media print {
    .header,
    .floating-element,
    .scroll-indicator,
    .footer {
        display: none;
    }
    
    .hero {
        min-height: auto;
        page-break-after: always;
    }
    
    .section {
        page-break-inside: avoid;
        padding: 2rem 0;
    }
}