:root {
    --netflix-red: #e50914;
    --netflix-black: #141414;
    --netflix-dark: #181818;
    --netflix-gray: #333333;
    --netflix-light-gray: #b3b3b3;
    --netflix-white: #ffffff;
    --ai-blue: #00d4ff;
    --ai-purple: #8b5cf6;
    --gradient-netflix: linear-gradient(135deg, var(--netflix-red), var(--ai-blue));
    --gradient-ai: linear-gradient(135deg, var(--ai-purple), var(--ai-blue));
    --gradient-dark: linear-gradient(135deg, var(--netflix-dark), var(--netflix-black));
    --shadow-netflix: 0 8px 32px rgba(229, 9, 20, 0.3);
    --shadow-ai: 0 8px 32px rgba(0, 212, 255, 0.3);
    --shadow-heavy: 0 20px 60px rgba(0, 0, 0, 0.4);
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --border-radius: 12px;
    
    /* ChatBot specific variables */
    --chatbot-primary: #00d4ff;
    --chatbot-secondary: #8b5cf6;
    --chatbot-background: rgba(20, 20, 20, 0.95);
    --chatbot-shadow: 0 10px 40px rgba(0, 212, 255, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--netflix-black);
    color: var(--netflix-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Enhanced Netflix Header */
.netflix-header {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(180deg, rgba(20, 20, 20, 0.95) 0%, transparent 100%);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 4%;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.netflix-header.scrolled {
    background: rgba(20, 20, 20, 0.98);
    box-shadow: var(--shadow-heavy);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: 'Netflix Sans', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-netflix);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    color: var(--netflix-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-netflix);
    transition: var(--transition);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    width: 100%;
}

.nav-menu a:hover {
    color: var(--netflix-red);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    color: var(--netflix-white);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* Enhanced Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: 
        radial-gradient(circle at 20% 80%, rgba(229, 9, 20, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        var(--netflix-black);
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--netflix-red);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 8s ease-in-out infinite;
}

.particle:nth-child(1) {
    width: 4px;
    height: 4px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    width: 6px;
    height: 6px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
    background: var(--ai-blue);
}

.particle:nth-child(3) {
    width: 3px;
    height: 3px;
    bottom: 30%;
    left: 70%;
    animation-delay: 4s;
    background: var(--ai-purple);
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) translateX(0px) rotate(0deg); 
        opacity: 0.1;
    }
    25% { 
        transform: translateY(-20px) translateX(10px) rotate(90deg); 
        opacity: 0.3;
    }
    50% { 
        transform: translateY(-40px) translateX(-10px) rotate(180deg); 
        opacity: 0.1;
    }
    75% { 
        transform: translateY(-20px) translateX(15px) rotate(270deg); 
        opacity: 0.2;
    }
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 1200px;
    padding: 0 2rem;
    z-index: 2;
}

/* Left side container for photo and badge */
.hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

/* Right side container for title and subtitle */
.hero-right {
    flex: 1;
    text-align: left;
}

/* Adjust profile photo for horizontal layout */
.profile-photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    margin: 0 0 1.5rem 0;
    border: 4px solid var(--netflix-red);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-netflix);
    animation: fadeInUp 1s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Adjust hero badge positioning */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    margin: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease-out;
}

/* Adjust title alignment */
.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient-netflix);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    animation: fadeInUp 1s ease-out 0.2s both;
    text-align: left;
}

/* Adjust subtitle alignment */
.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.8rem);
    font-weight: 300;
    color: var(--netflix-light-gray);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.4s both;
    position: relative;
    overflow: hidden;
    text-align: left;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-right {
        text-align: center;
    }
    
    .hero-title {
        text-align: center;
    }
    
    .hero-subtitle {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .profile-photo {
        width: 200px;
        height: 200px;
    }
    
    .hero-content {
        gap: 1.5rem;
    }
}

.typing-text {
    display: inline-block;
    border-right: 3px solid var(--ai-blue);
    white-space: nowrap;
    overflow: hidden;
    animation: 
        typing 3s steps(40, end) 2s 1 normal both,
        blink-cursor 800ms steps(40, end) infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink-cursor {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: var(--ai-blue);
    }
}

.social-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.social-btn {
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--netflix-red);
    border-radius: 50px;
    color: var(--netflix-white);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.social-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-netflix);
    transition: var(--transition);
    z-index: -1;
}

.social-btn:hover::before {
    left: 0;
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-netflix);
    border-color: transparent;
}

/* Enhanced Section Styling */
.section {
    padding: 8rem 4% 6rem;
    background: var(--gradient-dark);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    background: var(--gradient-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-description {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2rem;
    line-height: 1.8;
    text-align: center;
}

.hover-blue {
    color: var(--ai-blue);
    transition: var(--transition);
    cursor: pointer;
}

.hover-blue:hover {
    color: var(--netflix-red);
    text-shadow: 0 0 10px rgba(229, 9, 20, 0.5);
}

/* Enhanced Experience/Research/Project Sections with Images */
.experience-container,
.research-container,
.project-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.experience-box,
.research-box,
.project-box {
    background: var(--netflix-dark);
    border-radius: var(--border-radius);
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    cursor: pointer;
}

/* Project Image Section */
.project-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.1), rgba(0, 212, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-image img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: var(--transition);
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

/* Content Section */
.project-content {
    padding: 2.5rem;
}

.project-subtitle {
    color: var(--netflix-red);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

/* Netflix-style overlay effect */
.experience-box::before,
.research-box::before,
.project-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        rgba(229, 9, 20, 0.9), 
        rgba(0, 212, 255, 0.9)
    );
    opacity: 0;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

/* Enhanced hover effects */
.experience-box:hover,
.research-box:hover,
.project-box:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-heavy);
    border-color: var(--netflix-red);
}

.experience-box:hover::before,
.research-box:hover::before,
.project-box:hover::before {
    opacity: 0.95;
}

.experience-box:hover .project-image img,
.research-box:hover .project-image img,
.project-box:hover .project-image img {
    transform: scale(1.1);
}

/* Content styling with enhanced hover visibility */
.experience-box h3,
.research-box h3,
.project-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--netflix-white);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

.experience-box h3 i,
.research-box h3 i,
.project-box h3 i {
    color: var(--netflix-red);
    font-size: 1.3rem;
    transition: var(--transition);
}

.experience-box p,
.research-box p,
.project-box p {
    color: var(--netflix-light-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

/* Enhanced hover effects for content */
.experience-box:hover h3,
.research-box:hover h3,
.project-box:hover h3 {
    color: var(--netflix-white);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    transform: translateY(-5px);
}

.experience-box:hover h3 i,
.research-box:hover h3 i,
.project-box:hover h3 i {
    color: var(--netflix-white);
    transform: rotate(5deg) scale(1.1);
}

.experience-box:hover p,
.research-box:hover p,
.project-box:hover p {
    color: var(--netflix-white);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8);
    transform: translateY(-5px);
}

.experience-box:hover .project-subtitle,
.research-box:hover .project-subtitle,
.project-box:hover .project-subtitle {
    color: var(--netflix-white);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8);
    transform: translateY(-5px);
}

/* Skills Section */
.skills-section {
    background: var(--netflix-black);
}

.skills-container {
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    margin-bottom: 4rem;
}

.skill-category h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--netflix-red);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.skill-box {
    background: var(--netflix-dark);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.skill-box:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-netflix);
    border-color: var(--netflix-red);
}

.skill-box i {
    font-size: 2.5rem;
}

.skill-name {
    font-weight: 600;
    color: var(--netflix-white);
}

/* Education Section */
.education-section {
    background: var(--gradient-dark);
}

.education-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--netflix-dark);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.education-heading {
    font-size: 2rem;
    color: var(--netflix-red);
    margin-bottom: 1rem;
}

.degree-subheading {
    font-size: 1.5rem;
    color: var(--ai-blue);
    margin-bottom: 1rem;
}

.location-text {
    color: var(--netflix-light-gray);
    margin-bottom: 2rem;
}

.coursework-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.coursework-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--netflix-red);
    transition: var(--transition);
}

.coursework-item:hover {
    background: rgba(229, 9, 20, 0.1);
    transform: translateX(5px);
}

/* Popup Styling */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.popup.active {
    display: flex !important;
    opacity: 1;
}

.popup-content {
    background: var(--netflix-dark);
    border-radius: var(--border-radius);
    padding: 3rem;
    max-width: 1400px;
    max-height: 80vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    transform: scale(0.8);
    transition: transform 0.3s ease;
    cursor: default;
}

.popup.active .popup-content {
    transform: scale(1);
    animation: popIn 0.3s forwards;
}

.popup-heading {
    font-size: 2rem;
    color: var(--netflix-red);
    margin-bottom: 1rem;
}

.popup-subheading {
    font-size: 1.3rem;
    color: var(--ai-blue);
    margin-bottom: 2rem;
}

.popup-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: center;
}

.popup-github,
.popup-close {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.popup-github {
    background: var(--gradient-netflix);
    color: var(--netflix-white);
}

.popup-close {
    background: transparent;
    border: 2px solid var(--netflix-white);
    color: var(--netflix-white);
}

.popup-github:hover,
.popup-close:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-netflix);
}

/* Experience Date Box */
.experience-date-box {
    position: absolute;
    bottom: 1rem;
    right: 1.5rem;
    background: var(--netflix-red);
    color: var(--netflix-white);
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 20px;
    box-shadow: var(--shadow-netflix);
    transition: var(--transition);
    z-index: 3;
}

/* ======================================== CHATBOT STYLES ======================================== */

/* ChatBot Toggle Button */
.chatbot-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-ai);
    border: none;
    color: var(--netflix-white);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--chatbot-shadow);
    transition: var(--transition);
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.4);
}

.chatbot-toggle.active {
    background: var(--netflix-red);
}

/* ChatBot Container */
.chatbot-container {
    position: fixed;
    bottom: 100px;
    right: 2rem;
    width: 400px;
    height: 600px;
    background: var(--chatbot-background);
    border-radius: var(--border-radius);
    box-shadow: var(--chatbot-shadow);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideInUp 0.3s ease-out;
}

.chatbot-container.active {
    display: flex;
}

/* ChatBot Header */
.chatbot-header {
    background: var(--gradient-ai);
    padding: 1rem;
    color: var(--netflix-white);
    text-align: center;
    position: relative;
}

.chatbot-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.chatbot-subtitle {
    font-size: 0.8rem;
    opacity: 0.8;
    margin: 0.25rem 0 0 0;
}

.chatbot-close {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--netflix-white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.chatbot-close:hover {
    transform: translateY(-50%) scale(1.2);
}

/* ChatBot Messages Area */
.chatbot-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--ai-blue);
    border-radius: 3px;
}

/* Message Bubbles */
.message {
    display: flex;
    margin-bottom: 1rem;
    animation: fadeInMessage 0.3s ease-out;
}

.message.user {
    justify-content: flex-end;
}

.message.bot {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 20px;
    position: relative;
    word-wrap: break-word;
}

.message.user .message-bubble {
    background: var(--gradient-netflix);
    color: var(--netflix-white);
    border-bottom-right-radius: 5px;
}

.message.bot .message-bubble {
    background: rgba(255, 255, 255, 0.1);
    color: var(--netflix-white);
    border-bottom-left-radius: 5px;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.message-time {
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 0.25rem;
    text-align: right;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    border-bottom-left-radius: 5px;
    max-width: 80%;
}

.typing-dots {
    display: flex;
    gap: 0.3rem;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--ai-blue);
    border-radius: 50%;
    animation: typingDot 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

/* ChatBot Input Area */
.chatbot-input-area {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3);
}

.chatbot-input-container {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.chatbot-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 0.75rem 1rem;
    color: var(--netflix-white);
    resize: none;
    min-height: 20px;
    max-height: 100px;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.chatbot-input:focus {
    border-color: var(--ai-blue);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

.chatbot-input::placeholder {
    color: var(--netflix-light-gray);
}

.chatbot-send {
    background: var(--gradient-ai);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: var(--netflix-white);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-send:hover {
    transform: scale(1.1);
    box-shadow: var(--chatbot-shadow);
}

.chatbot-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Quick Actions */
.chatbot-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.quick-action-btn {
    background: rgba(0, 212, 255, 0.2);
    border: 1px solid var(--ai-blue);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    color: var(--ai-blue);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.quick-action-btn:hover {
    background: var(--ai-blue);
    color: var(--netflix-white);
}

/* Animations */
@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeInMessage {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typingDot {
    0%, 60%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    30% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes popIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Footer */
.site-footer {
    background: var(--netflix-black);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.scroll-animation {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.scroll-animation.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--netflix-black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid var(--netflix-gray);
    border-top: 3px solid var(--netflix-red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .experience-container,
    .research-container,
    .project-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .social-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    /* Mobile ChatBot Styles */
    .chatbot-container {
        width: calc(100vw - 2rem);
        height: calc(100vh - 120px);
        right: 1rem;
        bottom: 80px;
    }
    
    .chatbot-toggle {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .coursework-list {
        grid-template-columns: 1fr;
    }
    
    .chatbot-container {
        width: calc(100vw - 1rem);
        height: calc(100vh - 100px);
        right: 0.5rem;
        bottom: 70px;
    }
}

/* Print Styles */
@media print {
    .chatbot-toggle,
    .chatbot-container {
        display: none !important;
    }
}