/* Features Section */
.features {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #00f0ff, transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #00f0ff;
    box-shadow: 0 20px 40px rgba(0, 240, 255, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    color: #0a0a0a;
    transition: all 0.3s ease;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.feature-card p {
    color: #cccccc;
    font-size: 0.95rem;
}

/* Speakers Section */
.speakers {
    padding: 100px 0;
    background: #0a0a0a;
    position: relative;
}

.speakers::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 20% 80%, rgba(0, 240, 255, 0.1) 0%, transparent 50%),
                      radial-gradient(circle at 80% 20%, rgba(0, 119, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.speaker-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.speaker-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 240, 255, 0.5);
    box-shadow: 0 15px 35px rgba(0, 240, 255, 0.15);
}

.speaker-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    border: 3px solid transparent;
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    padding: 3px;
}

.speaker-avatar svg {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #1a1a1a;
}

.speaker-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.speaker-card p {
    color: #00f0ff;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.speaker-topic {
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    color: #00f0ff;
    display: inline-block;
}

/* Portfolio Section */
.portfolio {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.portfolio-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.code-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 240, 255, 0.1) 2px,
            rgba(0, 240, 255, 0.1) 4px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(0, 240, 255, 0.05) 20px,
            rgba(0, 240, 255, 0.05) 21px
        );
    animation: codeScroll 20s linear infinite;
}

@keyframes codeScroll {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(-20px) translateY(-20px); }
}

.portfolio-content {
    display: flex;
    align-items: center;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

.portfolio-text {
    flex: 1;
}

.portfolio-text h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.portfolio-text p {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.skill-tag {
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    color: #00f0ff;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(0, 240, 255, 0.2);
    transform: translateY(-2px);
}

.portfolio-button-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.portfolio-button {
    position: relative;
    padding: 16px 40px;
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    border: none;
    border-radius: 8px;
    color: #0a0a0a;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    font-family: 'Roboto', sans-serif;
}

.portfolio-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 240, 255, 0.4);
}

.button-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-button:hover .button-glow {
    opacity: 1;
    animation: buttonGlow 1s ease-in-out;
}

@keyframes buttonGlow {
    0% { transform: scale(0) rotate(0deg); }
    100% { transform: scale(1) rotate(360deg); }
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: #00f0ff;
    box-shadow: 0 5px 15px rgba(0, 240, 255, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0a0a;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.contact-item p {
    color: #cccccc;
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #00f0ff;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #888888;
}

.submit-button {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    border: none;
    border-radius: 8px;
    color: #0a0a0a;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 240, 255, 0.3);
}

/* Footer */
.footer {
    padding: 40px 0;
    background: #050505;
    border-top: 1px solid rgba(0, 240, 255, 0.2);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo .logo-svg {
    height: 30px;
}

.footer p {
    color: #888888;
    font-size: 0.9rem;
}

/* Responsive Design for Sections */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .speakers-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .portfolio-text h3 {
        font-size: 1.5rem;
    }
    
    .skills {
        justify-content: center;
    }
}