/* ==========================================================================
   RESET & SYSTEM VARIABLE DEFINITIONS
   ========================================================================== */

   :root {
    /* Google Brand Palette */
    --color-blue: #4285F4;
    --color-green: #34A853;
    --color-yellow: #FBBC04;
    --color-red: #EA4335;
    
    /* Background Themes */
    --bg-dark: #0A0A0A;
    --bg-dark-section: #0F0F0F;
    --bg-light: #FFFFFF;
    --bg-light-alt: #F8F9FA;
    --border-dark: rgba(255, 255, 255, 0.08);
    --border-light: rgba(0, 0, 0, 0.08);
    
    /* Text Palette */
    --text-light: #FFFFFF;
    --text-light-muted: #9AA0A6;
    --text-dark: #1F2023;
    --text-dark-muted: #5F6368;
    
    /* Typography */
    --font-display: 'Bricolage Grotesque', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Structure & Spacing */
    --grid-unit: 8px;
    --container-max-width: 1200px;
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
    --border-radius-pill: 9999px;
    
    /* Transition Timings */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

/* Reset baseline */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: auto; /* Handled by Lenis smooth scroll */
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Lenis Specific Configuration */
html.lenis, html.lenis body {
    height: auto;
}
.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
    overflow: clip;
}
.lenis.lenis-stopped {
    overflow: hidden;
}
.lenis.lenis-scrolling iframe {
    pointer-events: none;
}

/* Base Typo */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select {
    font: inherit;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 calc(var(--grid-unit) * 4);
}

.container-grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--grid-unit) * 6);
}

@media (min-width: 768px) {
    .container-grid-2 {
        grid-template-columns: 1.1fr 0.9fr;
        align-items: center;
    }
}

/* Section Common Styling */
section {
    padding: calc(var(--grid-unit) * 12) 0;
    position: relative;
}

.section-header {
    max-width: 650px;
    margin-bottom: calc(var(--grid-unit) * 8);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: calc(var(--grid-unit) * 2);
    color: inherit;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-dark-muted);
}

.dark-bg-text-muted {
    color: var(--text-light-muted) !important;
}

.accent-divider {
    width: 60px;
    height: 4px;
    background-color: var(--color-blue);
    border-radius: var(--border-radius-pill);
    margin-bottom: calc(var(--grid-unit) * 3);
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--border-radius-pill);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-blue);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: #3367d6;
    box-shadow: 0 4px 16px rgba(66, 133, 244, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #E8F0FE;
    color: var(--color-blue);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #d2e3fc;
    transform: translateY(-2px);
}

.btn-secondary:disabled {
    background-color: #E8EAED;
    color: var(--text-dark-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-outline {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--text-light);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--text-light);
    transform: translateY(-2px);
}

.btn-light {
    background-color: var(--bg-light);
    color: var(--color-blue);
    font-weight: 700;
}

.btn-light:hover {
    background-color: var(--bg-light-alt);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}


/* ==========================================================================
   1. STICKY NAVBAR STYLING
   ========================================================================== */

.navbar-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--grid-unit) * 2) calc(var(--grid-unit) * 4);
    max-width: var(--container-max-width);
    margin: 0 auto;
    width: 100%;
    transition: var(--transition-smooth);
}

/* Scrolled visual state */
.navbar-wrapper.scrolled {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
}

.navbar-wrapper.scrolled .navbar {
    padding: calc(var(--grid-unit) * 1.5) calc(var(--grid-unit) * 4);
}

.navbar-wrapper.scrolled .logo-text {
    color: var(--text-dark);
}

.navbar-wrapper.scrolled .nav-links a {
    color: var(--text-dark-muted);
}

.navbar-wrapper.scrolled .nav-links a:hover,
.navbar-wrapper.scrolled .nav-links a.active {
    color: var(--color-blue);
}

/* Logo Design */
.logo {
    display: flex;
    align-items: center;
    gap: calc(var(--grid-unit) * 1.5);
    z-index: 1001;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--text-light); /* Initial dark bg setup */
    transition: var(--transition-smooth);
    letter-spacing: -0.03em;
}

.dot-cluster {
    display: flex;
    gap: 4px;
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.dot-blue { background-color: var(--color-blue); }
.dot-red { background-color: var(--color-red); }
.dot-yellow { background-color: var(--color-yellow); }
.dot-green { background-color: var(--color-green); }

/* Desktop Navigation Link items */
.nav-links {
    display: none;
    list-style: none;
    gap: calc(var(--grid-unit) * 4);
}

.nav-links a {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 6px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-light);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-blue);
    transition: var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta-wrapper {
    display: flex;
    align-items: center;
    gap: calc(var(--grid-unit) * 2);
}

.nav-cta-wrapper .btn {
    display: none;
}

/* Hamburger menu button */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-light);
    border-radius: var(--border-radius-pill);
    transition: var(--transition-smooth);
}

/* Mobile Toggle Hamburger animation */
.menu-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* State when scrolled mobile icon is dark */
.navbar-wrapper.scrolled .menu-toggle span {
    background-color: var(--text-dark);
}

.navbar-wrapper.scrolled .menu-toggle.open span {
    background-color: var(--text-light);
}


/* ==========================================================================
   MOBILE DRAWER STYLING
   ========================================================================== */

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-dark);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    opacity: 0;
}

.mobile-menu.open {
    right: 0;
    opacity: 1;
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--grid-unit) * 4);
    width: 80%;
    text-align: center;
}

.mobile-nav-links a {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-light);
}

.mobile-nav-links a:hover {
    color: var(--color-blue);
}

.mobile-nav-links .btn {
    font-size: 1.1rem;
    margin-top: calc(var(--grid-unit) * 3);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
    .nav-cta-wrapper .btn {
        display: inline-flex;
    }
    .menu-toggle {
        display: none;
    }
}


/* ==========================================================================
   2. HERO SECTION STYLING (Dark Theme #0A0A0A)
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-dark);
    color: var(--text-light);
    overflow-x: hidden;
    padding-top: calc(var(--grid-unit) * 16);
    padding-bottom: calc(var(--grid-unit) * 8);
    position: relative;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 30%, rgba(66, 133, 244, 0.15) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

.hero-dot-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(circle at 50% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at 50% 50%, black 30%, transparent 80%);
    opacity: 0.85;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 5;
    text-align: center;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(66, 133, 244, 0.12);
    border: 1px solid rgba(66, 133, 244, 0.35);
    color: var(--color-blue);
    padding: 8px 18px;
    border-radius: var(--border-radius-pill);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: calc(var(--grid-unit) * 4);
    backdrop-filter: blur(8px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-blue);
    box-shadow: 0 0 8px var(--color-blue);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.75rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: calc(var(--grid-unit) * 3);
    text-transform: capitalize;
}

.hero-title span {
    display: block;
    overflow: hidden;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-light-muted);
    max-width: 680px;
    margin-bottom: calc(var(--grid-unit) * 5);
    font-weight: 400;
}

/* Event Metadata Information Row */
.hero-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: calc(var(--grid-unit) * 3);
    margin-bottom: calc(var(--grid-unit) * 6);
    max-width: 750px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-dark);
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    color: var(--text-light);
}

.meta-icon {
    display: flex;
    align-items: center;
    color: var(--color-blue);
}

.accent-text-green {
    color: var(--color-green) !important;
    font-weight: 700;
}

.hero-actions {
    display: flex;
    gap: calc(var(--grid-unit) * 2);
    flex-direction: column;
    width: 100%;
    align-items: center;
}

@media (min-width: 576px) {
    .hero-actions {
        flex-direction: row;
        width: auto;
        justify-content: center;
        align-items: center;
    }
}

/* Bottom Page Indicator */
.scroll-indicator {
    position: absolute;
    bottom: calc(var(--grid-unit) * 4);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.7;
    z-index: 5;
    transition: var(--transition-fast);
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-light-muted);
}

.scroll-arrow {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-6px); }
    60% { transform: translateY(-3px); }
}


/* ==========================================================================
   3. STAT STRIP STYLING
   ========================================================================== */

.stat-strip {
    background-color: var(--color-blue);
    color: var(--text-light);
    padding: calc(var(--grid-unit) * 6) 0;
    z-index: 10;
    position: relative;
    box-shadow: 0 10px 30px rgba(66, 133, 244, 0.15);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--grid-unit) * 4);
    text-align: center;
}

@media (min-width: 992px) {
    .stat-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-item {
    padding: calc(var(--grid-unit) * 2);
}

.stat-num {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: calc(var(--grid-unit) * 1);
    letter-spacing: -0.03em;
}

.stat-label {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.9;
    text-transform: capitalize;
}


/* ==========================================================================
   4. ABOUT / EXPECTATIONS SECTION STYLING (Light Background)
   ========================================================================== */

.about {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.about-left {
    padding-right: 0;
}

@media (min-width: 992px) {
    .about-left {
        padding-right: calc(var(--grid-unit) * 8);
    }
}

.about-desc {
    font-size: 1.1rem;
    color: var(--text-dark-muted);
    margin-bottom: calc(var(--grid-unit) * 3);
}

.about-desc strong {
    color: var(--text-dark);
}

.about-right {
    display: flex;
    flex-direction: column;
    gap: calc(var(--grid-unit) * 3);
}

/* Expectation Feature Card styling */
.feature-card {
    display: flex;
    gap: calc(var(--grid-unit) * 2.5);
    padding: calc(var(--grid-unit) * 3);
    background-color: var(--bg-light-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    background-color: var(--bg-light);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.icon-blue { background-color: rgba(66, 133, 244, 0.1); color: var(--color-blue); }
.icon-red { background-color: rgba(234, 67, 53, 0.1); color: var(--color-red); }
.icon-yellow { background-color: rgba(251, 188, 4, 0.1); color: #b78a02; }
.icon-green { background-color: rgba(52, 168, 83, 0.1); color: var(--color-green); }

.feature-info h3 {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.feature-info p {
    font-size: 0.95rem;
    color: var(--text-dark-muted);
}


/* ==========================================================================
   5. TOPICS / TRACKS STYLING (Dark Theme #0F0F0F)
   ========================================================================== */

.topics {
    background-color: var(--bg-dark-section);
    color: var(--text-light);
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
}

.topics .section-subtitle {
    color: var(--text-light-muted);
}

.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--grid-unit) * 3);
}

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

@media (min-width: 1200px) {
    .topics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Card Styling with Colored Top Borders */
.topic-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-dark);
    border-top-width: 4px; /* Distinct colored top */
    padding: calc(var(--grid-unit) * 4);
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
}

.topic-card:hover {
    transform: translateY(-6px);
    background-color: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.12);
}

/* Colorful rotation classes */
.border-blue { border-top-color: var(--color-blue); }
.border-red { border-top-color: var(--color-red); }
.border-yellow { border-top-color: var(--color-yellow); }
.border-green { border-top-color: var(--color-green); }

.topic-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-bottom: calc(var(--grid-unit) * 2.5);
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

/* Hover rotation highlight border-color match icon */
.topic-card.border-blue:hover .topic-icon { color: var(--color-blue); background-color: rgba(66, 133, 244, 0.1); }
.topic-card.border-red:hover .topic-icon { color: var(--color-red); background-color: rgba(234, 67, 53, 0.1); }
.topic-card.border-yellow:hover .topic-icon { color: var(--color-yellow); background-color: rgba(251, 188, 4, 0.1); }
.topic-card.border-green:hover .topic-icon { color: var(--color-green); background-color: rgba(52, 168, 83, 0.1); }

.topic-card h3 {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: calc(var(--grid-unit) * 1.5);
    color: var(--text-light);
}

.topic-card p {
    font-size: 0.95rem;
    color: var(--text-light-muted);
}


/* ==========================================================================
   6. SCHEDULE / AGENDA SECTION STYLING (Light Background)
   ========================================================================== */

.agenda {
    background-color: var(--bg-light-alt);
    color: var(--text-dark);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: calc(var(--grid-unit) * 6) auto 0 auto;
    padding-left: calc(var(--grid-unit) * 3);
}

@media (min-width: 768px) {
    .timeline {
        padding-left: 0;
    }
}

.timeline-line {
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 11px;
    width: 2px;
    background-color: var(--border-light);
}

@media (min-width: 768px) {
    .timeline-line {
        left: 200px;
    }
}

.timeline-item {
    position: relative;
    margin-bottom: calc(var(--grid-unit) * 6);
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .timeline-item {
        flex-direction: row;
        gap: calc(var(--grid-unit) * 8);
    }
}

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

/* Timeline center connector dots */
.timeline-dot {
    position: absolute;
    left: -24px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--bg-light);
    border: 3px solid var(--text-dark-muted);
    z-index: 5;
    transition: var(--transition-fast);
}

@media (min-width: 768px) {
    .timeline-dot {
        left: 194px;
    }
}

.timeline-dot.dot-active {
    border-color: var(--color-blue);
    background-color: var(--color-blue);
    box-shadow: 0 0 0 5px rgba(66, 133, 244, 0.15);
}

.timeline-dot.dot-special {
    border-color: var(--color-green);
    background-color: var(--color-green);
    box-shadow: 0 0 0 5px rgba(52, 168, 83, 0.15);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
}

/* Timing element */
.timeline-time {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 4px;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .timeline-time {
        width: 170px;
        text-align: right;
        margin-bottom: 0;
        padding-top: 2px;
    }
}

/* Context container */
.timeline-content {
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    padding: calc(var(--grid-unit) * 3) calc(var(--grid-unit) * 4);
    border-radius: var(--border-radius-md);
    flex-grow: 1;
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    transform: translateX(4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.03);
    border-color: rgba(66, 133, 244, 0.2);
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.session-description {
    font-size: 0.95rem;
    color: var(--text-dark-muted);
}

/* Badging inside timeline */
.agenda-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--border-radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: calc(var(--grid-unit) * 1.5);
}

.badge-blue { background-color: rgba(66, 133, 244, 0.1); color: var(--color-blue); }
.badge-red { background-color: rgba(234, 67, 53, 0.1); color: var(--color-red); }
.badge-yellow { background-color: rgba(251, 188, 4, 0.1); color: #b78a02; }
.badge-green { background-color: rgba(52, 168, 83, 0.1); color: var(--color-green); }


/* ==========================================================================
   7. SPEAKERS SECTION STYLING (Dark Theme)
   ========================================================================== */

.speakers {
    background-color: var(--bg-dark);
    color: var(--text-light);
    border-bottom: 1px solid var(--border-dark);
}

.speakers .section-subtitle {
    color: var(--text-light-muted);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: calc(var(--grid-unit) * 4);
}

@media (min-width: 576px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .speakers-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Speakers details card */
.speaker-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-dark);
    padding: calc(var(--grid-unit) * 4);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition-smooth);
}

.speaker-card:hover {
    transform: translateY(-8px);
    background-color: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.speaker-avatar {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    margin: 0 auto calc(var(--grid-unit) * 3) auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border: 4px solid var(--bg-dark);
    outline: 2px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

/* Gradient variants for TBA avatars */
.avatar-blue { background: linear-gradient(135deg, #4285F4 0%, #174ea6 100%); }
.avatar-red { background: linear-gradient(135deg, #EA4335 0%, #a51d24 100%); }
.avatar-yellow { background: linear-gradient(135deg, #FBBC04 0%, #b78a02 100%); }
.avatar-green { background: linear-gradient(135deg, #34A853 0%, #137333 100%); }

.speaker-avatar span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-light);
    letter-spacing: -0.05em;
}

.speaker-card:hover .speaker-avatar {
    outline-color: var(--color-blue);
    transform: scale(1.05);
}

.speaker-card h3 {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 4px;
    color: var(--text-light);
}

.speaker-role {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-blue);
    margin-bottom: calc(var(--grid-unit) * 2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.speaker-bio {
    font-size: 0.9rem;
    color: var(--text-light-muted);
    line-height: 1.5;
}

/* Speakers Footer Info tag */
.speakers-footer {
    margin-top: calc(var(--grid-unit) * 6);
    text-align: center;
    color: var(--text-light-muted);
    font-size: 0.95rem;
}


/* ==========================================================================
   8. VENUE SECTION STYLING (Light Background + Map representation)
   ========================================================================== */

.venue {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.venue-tba {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: calc(var(--grid-unit) * 1);
    line-height: 1;
    letter-spacing: -0.04em;
}

.venue-text {
    font-size: 1.1rem;
    color: var(--text-dark-muted);
    margin-bottom: calc(var(--grid-unit) * 4);
    max-width: 500px;
}

.venue-info-card {
    display: flex;
    gap: calc(var(--grid-unit) * 2);
    background-color: var(--bg-light-alt);
    border: 1px solid var(--border-light);
    padding: calc(var(--grid-unit) * 2.5);
    border-radius: var(--border-radius-md);
    margin-bottom: calc(var(--grid-unit) * 4);
    max-width: 500px;
}

.venue-info-icon {
    color: var(--color-blue);
    flex-shrink: 0;
}

.venue-info-card h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 2px;
}

.venue-info-card p {
    font-size: 0.9rem;
    color: var(--text-dark-muted);
}

/* Map visual layout representation */
.venue-right {
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    width: 100%;
    height: 320px;
    background-color: #E8EAED;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .map-placeholder {
        height: 400px;
    }
}

.map-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: 0.8;
}

.map-pin-pulse {
    position: relative;
    z-index: 10;
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0); }
}

.map-pulse-glow {
    position: absolute;
    width: 48px;
    height: 16px;
    background: rgba(66, 133, 244, 0.25);
    border-radius: 50%;
    bottom: 30%;
    left: 50%;
    transform: translateX(-50%) rotateX(60deg);
    animation: scaleGlow 3s ease-in-out infinite;
    z-index: 5;
}

@keyframes scaleGlow {
    0% { transform: translateX(-50%) rotateX(60deg) scale(0.8); opacity: 0.7; }
    50% { transform: translateX(-50%) rotateX(60deg) scale(1.3); opacity: 0.3; }
    100% { transform: translateX(-50%) rotateX(60deg) scale(0.8); opacity: 0.7; }
}

.map-badge {
    position: absolute;
    bottom: calc(var(--grid-unit) * 3);
    background-color: var(--text-dark);
    color: var(--text-light);
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--border-radius-pill);
    font-size: 0.85rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10;
}


/* ==========================================================================
   9. REGISTER CTA BAND STYLING (Google Blue BG)
   ========================================================================== */

.register-cta {
    background-color: var(--color-blue);
    color: var(--text-light);
    padding: calc(var(--grid-unit) * 14) 0;
    text-align: center;
    overflow: hidden;
}

.cta-container {
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: calc(var(--grid-unit) * 2);
    letter-spacing: -0.03em;
}

.cta-subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 600px;
    margin-bottom: calc(var(--grid-unit) * 5);
}

.btn-animated {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-animated svg {
    transition: transform 0.3s ease;
}

.btn-animated:hover svg {
    transform: translateX(6px);
}

.cta-notes {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--grid-unit) * 1.5);
    margin-top: calc(var(--grid-unit) * 4);
    font-size: 0.875rem;
    opacity: 0.8;
    font-weight: 500;
}


/* ==========================================================================
   10. FOOTER STYLING (Near-Black Background)
   ========================================================================== */

.footer {
    background-color: #050505;
    color: var(--text-light);
    padding: calc(var(--grid-unit) * 10) 0 calc(var(--grid-unit) * 4) 0;
    border-top: 1px solid var(--border-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--grid-unit) * 6);
    margin-bottom: calc(var(--grid-unit) * 8);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: calc(var(--grid-unit) * 1.5);
    margin-bottom: calc(var(--grid-unit) * 2);
}

.footer-tagline {
    color: var(--text-light-muted);
    font-size: 0.95rem;
    max-width: 320px;
}

.footer h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: calc(var(--grid-unit) * 3);
    color: var(--text-light);
}

/* Quick Links styling */
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--grid-unit) * 1.5);
}

.footer-links a {
    color: var(--text-light-muted);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--color-blue);
    transform: translateX(4px);
}

/* Social icons layout */
.social-links {
    display: flex;
    gap: calc(var(--grid-unit) * 1.5);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-light-muted);
    border: 1px solid var(--border-dark);
    transition: var(--transition-smooth);
}

.social-icon:hover {
    background-color: rgba(66, 133, 244, 0.1);
    color: var(--color-blue);
    border-color: rgba(66, 133, 244, 0.3);
    transform: translateY(-3px);
}

/* Footer bottom copyrights band */
.footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding-top: calc(var(--grid-unit) * 4);
    font-size: 0.85rem;
    color: var(--text-light-muted);
}

.footer-bottom-flex {
    display: flex;
    flex-direction: column;
    gap: calc(var(--grid-unit) * 2);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom-flex {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        width: 100%;
    }
    .footer-bottom-flex p {
        grid-column: 2;
        justify-self: center;
        text-align: center;
    }
    .footer-bottom-links {
        grid-column: 3;
        justify-self: end;
        text-align: right;
    }
}

.footer-bottom-links a {
    color: var(--text-light-muted);
}

.footer-bottom-links a:hover {
    color: var(--text-light);
}

.dot-separator {
    display: inline-block;
    padding: 0 4px;
}


/* ==========================================================================
   INTERSECTION ANIMATION ELEMENTS
   ========================================================================== */

.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
}