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

:root {
    --primary-color: #006fee;
    --primary-light: #2d88f1;
    --primary-dark: #005cc4;
    --secondary-color: #7828c8;
    --secondary-light: #904ed2;
    --accent-color: #17c964;
    --warning-color: #f5a524;
    --danger-color: #f31260;
    
    --dark-bg: #000000;
    --dark-surface: #18181b;
    --dark-surface-2: #27272a;
    --dark-surface-3: #3f3f46;
    --dark-surface-4: #52525b;
    
    --text-primary: #ffffff;
    --text-secondary: #b2b2b5;
    --text-muted: #8c8c90;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), #40d27f);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.4);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 2rem;
    animation: rotate 4s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    background: radial-gradient(ellipse at center, rgba(0, 111, 238, 0.1) 0%, transparent 70%);
    position: relative;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 2s ease-in-out infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.8; }
    100% { opacity: 1; }
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-secondary);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Robot Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.robot-container {
    position: relative;
    width: 300px;
    height: 400px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.robot-head {
    width: 120px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 20px 20px 10px 10px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 20px;
}

.robot-eye {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    animation: blink 3s infinite;
}

@keyframes blink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

.robot-body {
    width: 160px;
    height: 200px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius);
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
}

.robot-arm {
    width: 60px;
    height: 120px;
    background: var(--dark-surface-2);
    border-radius: 30px;
    position: absolute;
    top: 100px;
}

.robot-arm.left {
    left: -40px;
    animation: wave-left 2s ease-in-out infinite alternate;
}

.robot-arm.right {
    right: -40px;
    animation: wave-right 2s ease-in-out infinite alternate;
}

@keyframes wave-left {
    from { transform: rotate(-10deg); }
    to { transform: rotate(10deg); }
}

@keyframes wave-right {
    from { transform: rotate(10deg); }
    to { transform: rotate(-10deg); }
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.6;
    animation: float-around 4s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 20%;
    right: 10%;
    animation-delay: 1s;
}

.floating-icon:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes float-around {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(90deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
    75% { transform: translateY(-10px) rotate(270deg); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--dark-surface);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--dark-surface-2);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 111, 238, 0.2);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Orbitron', monospace;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-features {
    display: grid;
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    background: var(--dark-surface-2);
    border-radius: var(--border-radius);
    border: 1px solid rgba(120, 40, 200, 0.2);
    transition: var(--transition);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
}

/* Projects Section */
.projects {
    padding: 6rem 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--dark-surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.project-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 111, 238, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.overlay-content {
    text-align: center;
    color: white;
}

.overlay-content i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    display: block;
}

.overlay-content p {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

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

.project-placeholder {
    font-size: 3rem;
    color: white;
    opacity: 0.8;
    text-align: center;
}

.project-placeholder p {
    font-size: 1.2rem;
    margin-top: 1rem;
    font-weight: 600;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-content > p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    padding: 0.3rem 0.8rem;
    background: var(--dark-surface-2);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--primary-color);
}

.project-features {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.feature {
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.9;
}

/* Project card specific styling based on data attributes */
.project-card[data-project="ielts-speak"]:hover .project-overlay {
    background: rgba(23, 201, 100, 0.9);
}

.project-card[data-project="ella"]:hover .project-overlay {
    background: rgba(120, 40, 200, 0.9);
}

.project-card[data-project="robodog"]:hover .project-overlay {
    background: rgba(245, 165, 36, 0.9);
}

.project-card[data-project="future"]:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--accent-color);
}

/* Enhanced project card animations */
@keyframes projectPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.project-card[data-project="ielts-speak"]:hover .overlay-content i {
    animation: projectPulse 1.5s ease-in-out infinite;
}

.project-card[data-project="ella"]:hover .overlay-content i {
    animation: projectPulse 1.5s ease-in-out infinite;
}

.project-card[data-project="robodog"]:hover .overlay-content i {
    animation: projectPulse 1.5s ease-in-out infinite;
}

/* Team Section */
.team {
    padding: 6rem 0;
    background: var(--dark-surface);
}

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

.team-member {
    text-align: center;
    padding: 2rem;
    background: var(--dark-surface-2);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.member-avatar {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2.5rem;
    color: white;
}

.team-member h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.member-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.member-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.member-social a {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition);
}

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

/* Contact Section */
.contact {
    padding: 6rem 0;
}

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

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

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

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    background: var(--dark-surface);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Events Section */
.events {
    padding: 6rem 0;
    background: var(--dark-surface);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.event-card {
    background: var(--dark-surface-2);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.event-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, var(--dark-surface-2), rgba(0, 111, 238, 0.1));
}

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

.event-date {
    text-align: center;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    padding: 1rem;
    min-width: 80px;
    color: white;
}

.event-date .day {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Orbitron', monospace;
}

.event-date .month {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.event-location {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.event-location i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.event-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.event-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.event-tag {
    padding: 0.3rem 0.8rem;
    background: var(--dark-surface-3);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--accent-color);
}

/* Resources Section */
.resources {
    padding: 6rem 0;
}

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

.resource-category {
    background: var(--dark-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.resource-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.resource-category h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.resource-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.resource-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
}

.resource-link:before {
    content: '→';
    color: var(--primary-color);
    margin-right: 0.5rem;
    transition: var(--transition);
}

.resource-link:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

.resource-link:hover:before {
    transform: translateX(3px);
}

/* Achievements Section */
.achievements {
    padding: 6rem 0;
    background: var(--dark-surface);
}

.achievements-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.achievements-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
}

.timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    font-family: 'Orbitron', monospace;
    position: relative;
    z-index: 2;
    flex-shrink: 0;
}

.timeline-content {
    flex: 1;
    background: var(--dark-surface-2);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 0 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -30px;
    border-right-color: var(--dark-surface-2);
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -30px;
    border-left-color: var(--dark-surface-2);
}

.timeline-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.achievement-award {
    color: var(--warning-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.timeline-content p:last-child {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Newsletter Section */
.newsletter {
    padding: 4rem 0;
    background: var(--gradient-primary);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.newsletter-text h2 {
    color: white;
    font-family: 'Orbitron', monospace;
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.newsletter-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.newsletter-input-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.newsletter-input-group input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    min-width: 250px;
}

.newsletter-input-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.newsletter-input-group .btn {
    white-space: nowrap;
    background: var(--dark-bg);
    color: white;
}

.newsletter-input-group .btn:hover {
    background: var(--dark-surface);
    transform: translateY(-2px);
}

.newsletter-privacy {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    text-align: center;
}

/* Footer */
.footer {
    background: var(--dark-surface-2);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

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

.footer-social a {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-grid,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .event-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .achievements-timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 80px;
    }
    
    .timeline-date {
        position: absolute;
        left: 0;
        width: 60px;
        height: 60px;
        font-size: 1rem;
    }
    
    .timeline-content {
        margin: 0;
        margin-left: 2rem;
    }
    
    .timeline-content::before {
        left: -30px !important;
        right: auto !important;
        border-right-color: var(--dark-surface-2) !important;
        border-left-color: transparent !important;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .newsletter-input-group {
        flex-direction: column;
    }
    
    .newsletter-input-group input {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .robot-container {
        width: 250px;
        height: 300px;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Screen reader only labels */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}