/* GSB Conference Website - Modern CSS */

/* CSS Variables for consistent theming */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --white: #ffffff;
    --black: #000000;
    --border-color: #e2e8f0;
    
    /* RGB values for rgba() functions */
    --primary-rgb: 37, 99, 235;
    --secondary-rgb: 100, 116, 139;
    --accent-rgb: 245, 158, 11;
    --success-rgb: 16, 185, 129;
    --warning-rgb: 245, 158, 11;
    --light-rgb: 248, 250, 252;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Playfair Display', serif;
    --font-size-base: 16px;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 15px;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--secondary-color);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: var(--font-weight-normal);
    color: var(--secondary-color);
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-normal);
}

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: var(--font-weight-medium);
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline-light {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline-light:hover {
    background-color: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.btn-light:hover {
    background-color: var(--light-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Sections */
.section-padding {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    margin: 0 auto 2rem;
    border-radius: 2px;
}

.section-divider.bg-white {
    background: var(--white);
}

.section-description {
    text-align: center;
    font-size: 1.125rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto;
}

.bg-light {
    background-color: var(--light-color) !important;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preloader-inner {
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    position: relative;
}

.double-bounce1, .double-bounce2 {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--primary-color);
    opacity: 0.6;
    position: absolute;
    top: 0;
    left: 0;
    animation: sk-bounce 2.0s infinite ease-in-out;
}

.double-bounce2 {
    animation-delay: -1.0s;
}

@keyframes sk-bounce {
    0%, 100% {
        transform: scale(0);
    }
    50% {
        transform: scale(1);
    }
}

/* Navigation */
.navbar {
    padding: 1rem 0;
    transition: var(--transition-normal);
    background-color: rgba(30, 41, 59, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(30, 41, 59, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-brand .logo {
    height: 40px;
    width: auto;
}

.navbar-nav .nav-link {
    color: var(--white) !important;
    font-weight: var(--font-weight-medium);
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(37, 99, 235, 0.1);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: var(--transition-normal);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 80%;
    left: 10%;
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8), rgba(29, 78, 216, 0.8)), url('../img/hero-bg.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--white);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/hero-pattern.svg') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85), rgba(29, 78, 216, 0.85));
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.event-date {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    color: var(--accent-color);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--white);
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: var(--font-weight-light);
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-down {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    color: var(--white);
    text-align: center;
    line-height: 36px;
    animation: bounce 2s infinite;
    transition: var(--transition-normal);
}

.scroll-down:hover {
    color: var(--white);
    border-color: var(--white);
    transform: translateX(-50%) translateY(-5px);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Background Section */
.hero-bg-section {
    position: relative;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85), rgba(29, 78, 216, 0.85)), url('../img/hero-bg2.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--white);
    overflow: hidden;
}

.hero-bg-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/hero-pattern.svg') center/cover;
    opacity: 0.05;
    z-index: 1;
}

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

.hero-bg-section .section-title,
.hero-bg-section .section-description {
    color: var(--white);
}

.hero-bg-section .section-divider {
    background: var(--white);
}

.hero-bg-section .section-divider::before,
.hero-bg-section .section-divider::after {
    background: rgba(255, 255, 255, 0.3);
}

/* About Section */
.about-content {
    margin-bottom: 2rem;
}

.about-stats {
    margin-top: 2rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    font-family: var(--font-secondary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: var(--font-weight-medium);
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

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

.info-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
    width: 20px;
    text-align: center;
    margin-top: 0.25rem;
}

.info-item strong {
    color: var(--dark-color);
    font-weight: var(--font-weight-semibold);
}

/* Speakers Section */
.speaker-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition-normal);
    height: 100%;
}

.speaker-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.speaker-image {
    position: relative;
    overflow: hidden;
}

.speaker-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.speaker-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.speaker-card:hover .speaker-overlay {
    opacity: 0.9;
}

.speaker-card:hover .speaker-image img {
    transform: scale(1.1);
}

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

.speaker-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition-normal);
}

.speaker-social a:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: scale(1.1);
}

.speaker-info {
    padding: 1.5rem;
    text-align: center;
}

.speaker-info h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.speaker-title {
    color: var(--primary-color);
    font-weight: var(--font-weight-medium);
    margin-bottom: 0.5rem;
}

.speaker-topic {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin: 0;
}

/* Agenda Section */
.agenda-tabs .nav-pills .nav-link {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: var(--border-radius-lg);
    padding: 1rem 2rem;
    margin: 0 0.5rem;
    text-align: center;
    min-width: 120px;
    transition: var(--transition-normal);
}

.agenda-tabs .nav-pills .nav-link.active,
.agenda-tabs .nav-pills .nav-link:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.day-date {
    display: block;
    font-size: 0.9rem;
    font-weight: var(--font-weight-bold);
}

.day-name {
    display: block;
    font-size: 0.8rem;
    opacity: 0.8;
}

.agenda-timeline {
    position: relative;
    padding-left: 2rem;
}

.agenda-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 0 4px var(--white), 0 0 0 6px var(--primary-color);
}

.timeline-time {
    min-width: 100px;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    font-size: 0.9rem;
}

.timeline-content h5 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.timeline-content p {
    margin: 0;
    color: var(--secondary-color);
}

.timeline-content strong {
    color: var(--primary-color);
}

.session-desc {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--secondary-color);
    margin-top: 0.5rem;
}

.timeline-content h6 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--dark-color);
    font-weight: var(--font-weight-semibold);
}

.timeline-content .col-md-6 {
    padding: 0.5rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
}

.timeline-content .col-md-6:hover {
    background: rgba(var(--primary-rgb), 0.1);
    transition: var(--transition-fast);
}

/* Agenda Table Styles */
.agenda-table-container {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-top: 2rem;
}

.agenda-table {
    margin: 0;
    border: none;
}

.agenda-table thead th {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    padding: 1.5rem 1rem;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    font-size: 1.1rem;
}

.time-column {
    width: 120px;
    min-width: 120px;
}

.room-column {
    width: calc((100% - 120px) / 2);
}

.agenda-table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

.agenda-table tbody tr:last-child {
    border-bottom: none;
}

.time-cell {
    background: var(--light-color);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    text-align: center;
    vertical-align: middle;
    padding: 1rem;
    font-size: 0.95rem;
    border-right: 2px solid var(--border-color);
}

.session-cell {
    padding: 1rem;
    vertical-align: top;
    border-right: 1px solid var(--border-color);
}

.session-cell:last-child {
    border-right: none;
}

.full-width-session {
    padding: 1rem;
    text-align: center;
}

.session-card {
    padding: 1rem;
    border-radius: var(--border-radius);
    height: 100%;
    transition: var(--transition-normal);
}

.session-card.keynote {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.1), rgba(var(--primary-rgb), 0.1));
    border-left: 4px solid var(--accent-color);
}

.session-card.parallel {
    background: rgba(var(--primary-rgb), 0.05);
    border-left: 4px solid var(--primary-color);
}

.session-card.parallel:hover {
    background: rgba(var(--primary-rgb), 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.session-card.general {
    background: rgba(var(--secondary-rgb), 0.05);
    border-left: 4px solid var(--secondary-color);
}

.session-card.break {
    background: rgba(var(--warning-rgb), 0.1);
    border-left: 4px solid var(--warning-color);
}

.session-card.lunch {
    background: linear-gradient(135deg, rgba(var(--success-rgb), 0.1), rgba(var(--accent-rgb), 0.1));
    border-left: 4px solid var(--success-color);
}

.session-card h5 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-size: 1rem;
    line-height: 1.3;
}

.session-card p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.session-card p strong {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
}

.session-card .company {
    color: var(--secondary-color);
    font-size: 0.85rem;
    font-style: italic;
}

.break-row, .lunch-row {
    background: rgba(var(--light-rgb), 0.5);
}

.break-cell, .lunch-cell {
    padding: 0.75rem 1rem;
    text-align: center;
}

/* Responsive agenda table */
@media (max-width: 768px) {
    .agenda-table-container {
        overflow-x: auto;
    }
    
    .agenda-table {
        min-width: 600px;
    }
    
    .time-column {
        width: 100px;
        min-width: 100px;
    }
    
    .session-card h5 {
        font-size: 0.9rem;
    }
    
    .session-card p {
        font-size: 0.8rem;
    }
}

/* Pricing Section */
.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    position: relative;
    height: 100%;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    font-size: 0.8rem;
    font-weight: var(--font-weight-semibold);
    z-index: 2;
}

.pricing-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    background: linear-gradient(135deg, var(--light-color), var(--white));
}

.pricing-card.featured .pricing-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.pricing-header h4 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.pricing-price {
    margin-bottom: 0.5rem;
}

.currency {
    font-size: 1.5rem;
    vertical-align: top;
}

.amount {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    font-family: var(--font-secondary);
}

.pricing-duration {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

.pricing-features {
    padding: 1rem 2rem;
}

.pricing-features ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--success-color);
    font-size: 0.9rem;
}

.pricing-footer {
    padding: 1rem 2rem 2rem;
    text-align: center;
}

/* Partners Section */
.partner-logo {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    opacity: 1;
}

.partner-logo img {
    max-width: 100%;
    max-height: 80px;
    width: auto;
    height: auto;
}

/* Venue Section */
.venue-info h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.venue-details {
    margin-top: 2rem;
}

.venue-detail {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.venue-detail:last-child {
    margin-bottom: 0;
}

.venue-detail i {
    color: var(--primary-color);
    font-size: 1.25rem;
    width: 20px;
    text-align: center;
    margin-top: 0.25rem;
}

.venue-detail strong {
    color: var(--dark-color);
    font-weight: var(--font-weight-semibold);
}

.map-container {
    height: 500px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--light-color);
    position: relative;
    aspect-ratio: 1 / 1;
}

.bing-map-iframe {
    border: 0;
    border-radius: var(--border-radius-lg);
    width: 100%;
    height: 500px;
    min-height: 500px;
}

.map-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 1rem;
    z-index: 10;
}

.map-info {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem;
    border-radius: var(--border-radius);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.map-info h6 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-semibold);
}

.map-info p {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.alert-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    margin-bottom: 0;
}

.map-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Contact Section */
.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-label {
    font-weight: var(--font-weight-medium);
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    transition: var(--transition-normal);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

.contact-info {
    padding: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    gap: 1rem;
}

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

.contact-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
    width: 20px;
    text-align: center;
    margin-top: 0.25rem;
}

.contact-item h5 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.contact-item p {
    margin: 0;
    color: var(--secondary-color);
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--dark-color) !important;
    padding: 3rem 0 1rem;
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

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

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition-normal);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer h5 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 0.25rem;
}

.newsletter-form .input-group {
    margin-top: 1rem;
}

.newsletter-form .form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.newsletter-form .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form .form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
    color: var(--white);
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0 1rem;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    font-size: 0.9rem;
}

/* Back to Top Button */
.btn-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.btn-back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Remove animation for contact info-card so it is always visible */
#contact .info-card {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .timeline-time {
        min-width: auto;
        font-size: 0.8rem;
    }
    
    .agenda-tabs .nav-pills .nav-link {
        padding: 0.75rem 1rem;
        margin: 0.25rem;
        min-width: 80px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .about-stats .col-6:nth-child(odd) {
        border-right: 1px solid rgba(0, 0, 0, 0.1);
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .section-padding {
        padding: 40px 0;
    }
    
    .contact-form,
    .contact-info {
        padding: 1.5rem;
    }
    
    .info-card {
        padding: 1.5rem;
    }
    
    .btn-back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for better accessibility */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .btn-back-to-top,
    .preloader {
        display: none !important;
    }
    
    .hero-section {
        background: var(--white) !important;
        color: var(--dark-color) !important;
        page-break-after: always;
    }
    
    .section-padding {
        padding: 1rem 0;
    }
}

/* Partner Cards */
.partner-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(var(--dark-rgb), 0.1);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(var(--primary-rgb), 0.1);
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(var(--dark-rgb), 0.15);
}

.microsoft-support {
    background: rgba(var(--primary-rgb), 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.microsoft-support h5 {
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Registration Card */
.registration-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(37, 99, 235, 0.2);
}

.registration-header {
    background: var(--white);
    padding: 2rem;
    text-align: center;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.event-badge {
    display: inline-block;
    background: var(--success-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.registration-header h3 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.event-details {
    text-align: left;
    max-width: 300px;
    margin: 0 auto;
}

.detail-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
}

.detail-item i {
    width: 20px;
    margin-right: 0.75rem;
    color: var(--primary-color);
}

.registration-content {
    padding: 2rem;
    background: var(--white);
}

.registration-content h4 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.included-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.included-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
}

.included-list li i {
    color: var(--success-color);
    margin-right: 0.75rem;
    font-size: 0.875rem;
}

.registration-footer {
    padding: 2rem;
    background: var(--light-color);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.btn-register {
    font-size: 1.125rem;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(var(--primary-rgb), 0.3);
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    text-decoration: none;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
    background-color: var(--primary-dark);
    color: var(--white);
}

.registration-note {
    margin-top: 1rem;
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.registration-note i {
    color: var(--primary-color);
}

/* Contact Section Icons */
.contact-info-icon {
    font-size: 2rem;
}

/* Contact Section Button Consistency */
.contact-item .btn {
    min-width: 180px;
    text-align: center;
    display: inline-block;
    padding: 0.75rem 1.5rem;
    margin-top: 0.5rem;
}

.contact-item.flex-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
}

.contact-item.flex-column i {
    margin-top: 0;
    margin-right: 0;
}

/* Interactive Cards */
.clickable {
    cursor: pointer;
    transition: all 0.3s ease;
}

.clickable:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.speaker-card.expanded {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    z-index: 10;
    position: relative;
}

.speaker-bio {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

.speaker-bio.hidden {
    display: none;
}

.speaker-bio p {
    margin-bottom: 0.8rem;
}

.speaker-bio p:last-child {
    margin-bottom: 0;
}

/* Session Detail Modal */
.session-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.session-modal.show {
    opacity: 1;
    visibility: visible;
}

.session-modal-content {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.session-modal.show .session-modal-content {
    transform: translateY(0);
}

.session-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.session-modal-close:hover {
    background: var(--light-color);
    color: var(--dark-color);
}

.session-modal h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-right: 2rem;
}

.session-modal .speaker-info {
    background: var(--light-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

.session-modal .session-description {
    line-height: 1.6;
    color: var(--secondary-color);
}

.session-modal .session-time {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
}

/* Click indicator */
.clickable::after {
    content: "Click for details";
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    font-size: 0.75rem;
    color: var(--secondary-color);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.clickable:hover::after {
    opacity: 0.7;
}

.speaker-card {
    position: relative;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .session-modal-content {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .speaker-card.expanded {
        transform: none;
    }
}

/* Session Modal Additional Styles */
.session-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.session-modal.show {
    opacity: 1;
}

.session-modal-content {
    background: white;
    border-radius: 12px;
    max-width: 90%;
    width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.session-modal.show .session-modal-content {
    transform: scale(1);
}

.session-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px 12px 0 0;
}

.session-modal-header h4 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.session-modal-header .btn-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.session-modal-header .btn-close:hover {
    opacity: 1;
}

.session-modal-header .btn-close::before {
    content: '×';
    font-size: 24px;
    line-height: 1;
}

.session-modal-body {
    padding: 2rem;
}

.session-details {
    line-height: 1.6;
}

.session-time,
.session-room {
    color: var(--text-color);
    font-size: 0.95rem;
}

.session-time i,
.session-room i {
    color: var(--primary-color);
    width: 20px;
}

.session-description h6,
.session-speakers h6 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.session-description p {
    color: var(--text-color);
    margin-bottom: 0;
}

.speaker-thumb {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-color);
}

.speaker-info strong {
    color: var(--heading-color);
}

.speaker-info .text-muted {
    color: var(--text-light) !important;
}

/* Enhanced responsive modal */
@media (max-width: 768px) {
    .session-modal-content {
        width: 95% !important;
        margin: 1rem !important;
    }
    
    .session-modal-header {
        padding: 1rem !important;
    }
    
    .session-modal-body {
        padding: 1.5rem !important;
    }
    
    .session-modal-header h4 {
        font-size: 1.1rem !important;
    }
}

/* Speaker Modal Overlay Styles */
.speaker-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2001;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.speaker-modal.show {
    opacity: 1;
}

.speaker-modal-content {
    background: white;
    border-radius: 16px;
    max-width: 90%;
    width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.speaker-modal.show .speaker-modal-content {
    transform: scale(1);
}

.speaker-modal-header {
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 16px 16px 0 0;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    position: relative;
}

.speaker-modal-image {
    flex-shrink: 0;
}

.speaker-modal-image img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.3);
}

.speaker-modal-title {
    flex-grow: 1;
}

.speaker-modal-title h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.speaker-modal-title .speaker-position {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

.speaker-modal-title .speaker-session-topic {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
    font-style: italic;
}

.speaker-modal-header .btn-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
    padding: 0;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
}

.speaker-modal-header .btn-close:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.2);
}

.speaker-modal-header .btn-close::before {
    content: '×';
    font-size: 24px;
    line-height: 1;
}

.speaker-modal-body {
    padding: 2rem;
}

.speaker-modal-body p {
    line-height: 1.7;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.speaker-modal-body p:last-child {
    margin-bottom: 0;
}

.speaker-modal-body strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Responsive speaker modal */
@media (max-width: 768px) {
    .speaker-modal-content {
        width: 95%;
        margin: 1rem;
        max-height: 95vh;
    }
    
    .speaker-modal-header {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .speaker-modal-image img {
        width: 80px;
        height: 80px;
    }
    
    .speaker-modal-title h4 {
        font-size: 1.3rem;
    }
    
    .speaker-modal-body {
        padding: 1.5rem;
    }
    
    .speaker-modal-header .btn-close {
        top: 0.75rem;
        right: 0.75rem;
    }
}

@media (max-width: 480px) {
    .speaker-modal-header {
        padding: 1rem;
    }
    
    .speaker-modal-body {
        padding: 1rem;
    }
    
    .speaker-modal-image img {
        width: 70px;
        height: 70px;
    }
    
    .speaker-modal-title h4 {
        font-size: 1.2rem;
    }
}