:root {
    --primary-color: #CC0000;
    --primary-dark: #7D0000;
    --primary-light: #FF3333;
    --text-dark: #1A1A1A;
    --text-muted: #6B7280;
    --bg-light: #F8FAFC;
    --white: #FFFFFF;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

/* Global Styles */
body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

/* Custom Bootstrap Color Classes */
.bg-primary {
    background-color: #00cc00 !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.btn-primary {
    background-color: #00cc00;
    border-color: #00cc00;
}

.btn-primary:hover {
    background-color: #007D00;
    border-color: #007D00;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(rgba(6, 4, 4, 0.7), rgba(3, 2, 3, 0.8)),
        url('assets/img/sd25_2.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(6, 4, 4, 0.7) 0%, rgba(3, 2, 3, 0.1) 100%);
}

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

.hero-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 1rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 300;
    color: white;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.hero-info {
    color: white;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-hero {
    background: linear-gradient(135deg, #00cc00, #007D00);
    color: white;
    border: none;
    padding: 1rem 3rem;
    font-size: 1.25rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    animation: pulse-glow 2s infinite;
}

.btn-hero:hover {
    background: linear-gradient(135deg, #007D00, #00cc00);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -5px rgba(204, 0, 0, 0.4);
    color: white;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(204, 0, 0, 0.4);
    }
    50% {
        box-shadow: 0 0 30px rgba(204, 0, 0, 0.6);
    }
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: none;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-content h5 {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* Speaker Cards */
.speaker-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.speaker-image {
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--bg-light);
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.speaker-info h5 {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.speaker-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

/* Topic Cards */
.topic-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.topic-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.topic-card h5 {
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.4;
    margin: 0;
}

/* Pricing Card */
.pricing-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid rgba(204, 0, 0, 0.2);
}

.original-price {
    font-size: 1.125rem;
    color: var(--primary-color);
    text-decoration: line-through;
    margin-bottom: 0.5rem;
}

.current-price {
    font-size: 3rem;
    font-weight: 700;
    color: #007D00;
    margin-bottom: 1rem;
}

.price-badge {
    background-color: #007D00;
    color: white;
    font-size: 1.125rem;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
}

.btn-cta {
    background: #00cc00;
    color: white;
    border: none;
    padding: 1rem 3rem;
    font-size: 1.25rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    animation: pulse-glow 2s infinite;
}

.btn-cta:hover {
    background: #007D00;
    transform: scale(1.05);
    color: white;
}

.included-items h5 {
    font-weight: 600;
    color: var(--text-dark);
}

.included-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}

/* Audience Cards */
.audience-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.audience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.audience-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.audience-card h5 {
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

/* Event Details Card */
.event-details-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.event-detail {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.event-detail:last-child {
    border-bottom: none;
}

.event-detail i {
    font-size: 2rem;
    width: 3rem;
    text-align: center;
}

.event-detail strong {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
}

.event-detail .text-muted {
    color: var(--text-muted);
}

/* Sponsors and Exhibitors */
.sponsor-item, .exhibitor-item {
    padding: 1rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.sponsor-item:hover, .exhibitor-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.sponsor-item h5, .exhibitor-item h6 {
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

/* Footer */
footer {
    background: #1F2937 !important;
}

footer a {
    text-decoration: none;
    transition: var(--transition);
}

footer a:hover {
    color: var(--primary-light) !important;
}

.social-links a {
    display: inline-block;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .feature-card {
        flex-direction: column;
        text-align: center;
    }

    .current-price {
        font-size: 2.5rem;
    }
}