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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(102, 126, 234, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.8), 0 0 30px rgba(118, 75, 162, 0.6);
    }
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
        opacity: 0.7;
    }
    25% {
        transform: translateY(-20px) translateX(10px);
        opacity: 1;
    }
    50% {
        transform: translateY(-40px) translateX(-5px);
        opacity: 0.8;
    }
    75% {
        transform: translateY(-20px) translateX(-10px);
        opacity: 0.9;
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

@keyframes slideRight {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes scanLine {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.05);
    }
}

@keyframes diagonalMove {
    0% {
        background-position: 0% 0%;
    }
    50% {
        background-position: 100% 100%;
    }
    100% {
        background-position: 0% 0%;
    }
}

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

@keyframes matrixRain {
    0% {
        transform: translateY(-100vh);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
    border: 2px solid white;
}

.nav-logo:hover {
    transform: scale(1.1);
}

.nav-brand-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.startups-tab {
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.3);
    margin-left: 0.5rem;
}

.startups-tab:hover {
    background: linear-gradient(135deg, #ff5252, #ff7979);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
    color: white !important;
}

.startups-tab::after {
    display: none;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

.hero-background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-full-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
}

.hero-background-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.7) 0%, rgba(118, 75, 162, 0.7) 50%, rgba(255, 107, 107, 0.6) 100%);
    background-size: 200% 200%;
    /* animation: gradientShift 8s ease infinite; */
    z-index: 2;
}

.hero-background-image {
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 95%);
    overflow: hidden;
}

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

.hero-text-overlay {
    background: rgba(0, 0, 0, 0.4);
    padding: 3rem 2rem;
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    /* animation: particleFloat 6s ease-in-out infinite; */
}

.particle:nth-child(1) {
    left: 20%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    left: 40%;
    animation-delay: 1s;
    animation-duration: 6s;
}

.particle:nth-child(3) {
    left: 60%;
    animation-delay: 2s;
    animation-duration: 7s;
}

.particle:nth-child(4) {
    left: 80%;
    animation-delay: 3s;
    animation-duration: 9s;
}

.particle:nth-child(5) {
    left: 10%;
    animation-delay: 4s;
    animation-duration: 5s;
}

.particle:nth-child(6) {
    left: 90%;
    animation-delay: 5s;
    animation-duration: 8s;
}

.profile-image-container {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
    opacity: 0.95;
}

.hero-affiliation {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

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

.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.animated-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    background-size: 200% 200%;
    /* animation: gradientShift 3s ease infinite; */
    position: relative;
    overflow: hidden;
    color: white !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    font-weight: 700;
}

.animated-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.animated-btn:hover::before {
    left: 100%;
}

.animated-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

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

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

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

/* Section Styles */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--text-dark);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* About Section */
.about {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23667eea" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="%23764ba2" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.5;
    z-index: 1;
}

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

.animated-title {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), #ff6b6b);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* animation: gradientShift 3s ease infinite; */
    position: relative;
}

.animated-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    animation: pulse 2s ease-in-out infinite;
}

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.about-text-container {
    text-align: center;
}

.about-images-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.about-image {
    width: 350px;
    height: 250px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-image:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 0 0 1rem 1rem;
}

.about-image-wrapper:hover .image-caption {
    opacity: 1;
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    text-align: justify;
    font-weight: 500;
}

.about-text:last-child {
    margin-bottom: 0;
}

/* Experience Section */
.experience {
    background: var(--light-bg);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.experience::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(102, 126, 234, 0.15) 50%, rgba(118, 75, 162, 0.1) 70%, transparent 90%);
    background-size: 200% 200%;
    animation: slideRight 8s ease-in-out infinite;
    z-index: 1;
}

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

.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.experience-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.experience-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.experience-logo-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: contain;
    background: white;
    padding: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.experience-logo-img:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.experience-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.company {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.duration {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.website a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.website a:hover {
    text-decoration: underline;
}

.description {
    color: var(--text-light);
    line-height: 1.6;
    margin-top: 0.5rem;
}

/* Research Section */
.research {
    background: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.research::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(102, 126, 234, 0.2) 30%, rgba(118, 75, 162, 0.15) 50%, rgba(102, 126, 234, 0.2) 70%, transparent 100%);
    background-size: 200% 100%;
    animation: scanLine 6s ease-in-out infinite;
    z-index: 1;
}

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

.research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 100%;
}

.research-grid .research-card {
    min-width: 0;
}

.research-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    text-align: center;
    border-top: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s ease;
}

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

.research-card:nth-child(1) {
    border-top-color: #667eea;
}

.research-card:nth-child(2) {
    border-top-color: #764ba2;
}

.research-card:nth-child(3) {
    border-top-color: #667eea;
}

.research-card:nth-child(4) {
    border-top-color: #764ba2;
}

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

/* Research Images */
.research-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.research-image-container {
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.research-image-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.research-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.research-image-container:hover .research-image {
    transform: scale(1.05);
}



/* Publications Section */
.publications {
    background: var(--light-bg);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.publications::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.1) 30%, transparent 60%),
                radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.2) 0%, rgba(102, 126, 234, 0.1) 30%, transparent 60%);
    animation: pulseGlow 4s ease-in-out infinite;
    z-index: 1;
}

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

.publications-section {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.publications-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

.publications-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.publications-by-year {
    max-width: 1000px;
    margin: 0 auto;
}

.year-group {
    margin-bottom: 2.5rem;
}

.year-toggle {
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.1) 0%, transparent 100%);
    border-radius: 0 0.5rem 0.5rem 0;
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
}

.year-toggle:hover {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.15) 0%, transparent 100%);
    transform: translateX(2px);
}

.year-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
    text-align: left;
}

.toggle-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
    font-weight: bold;
}

.publication-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: all 0.3s ease;
    overflow: hidden;
}

.publication-item {
    background-color: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    overflow: hidden;
}

.publication-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--primary-color);
}

.publication-content {
    padding: 1.5rem;
}

.publication-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.publication-authors {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-style: italic;
}

.publication-journal {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0;
}

.research-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
    transition: transform 0.3s ease;
}

.research-card:nth-child(1) .research-icon {
    animation-delay: 0s;
}

.research-card:nth-child(2) .research-icon {
    animation-delay: 1s;
}

.research-card:nth-child(3) .research-icon {
    animation-delay: 2s;
}

.research-card:nth-child(4) .research-icon {
    animation-delay: 3s;
}

.research-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.research-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Startups Section */
.startups {
    background-color: var(--bg-white);
}

.startup-container {
    max-width: 1000px;
    margin: 0 auto;
}

.startup-card {
    background-color: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border-top: 4px solid var(--primary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.startup-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.startup-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-align: left;
}

.startup-logo-container {
    flex-shrink: 0;
}

.startup-logo {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    object-fit: contain;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: white;
    padding: 8px;
}

.startup-logo:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

.startup-title-container {
    flex: 1;
}

.startup-name {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.startup-link {
    display: inline-block;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.125rem;
    padding: 0.5rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 2rem;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.startup-link:hover {
    background-color: white;
    color: var(--primary-color);
    border-color: white;
    transform: scale(1.05);
}

.startup-content {
    padding: 2.5rem;
}

.startups-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.startups-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-top: 1rem;
    font-style: italic;
}

.startup-tagline {
    font-size: 1.3rem;
    line-height: 1.4;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
    font-style: italic;
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.startup-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.startup-link:hover {
    background: linear-gradient(135deg, #5a67d8, #6b46c1);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.highlight-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.highlight-content strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.highlight-content p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.startup-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 2rem;
    text-align: justify;
}

.startup-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.startup-image-container {
    position: relative;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.startup-image-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.startup-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.startup-image-container:hover .startup-image {
    transform: scale(1.05);
}

.image-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

.startup-highlights {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--primary-color);
}

.startup-highlights h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.startup-highlights ul {
    list-style: none;
    padding: 0;
}

.startup-highlights li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.startup-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Education Section */
.education {
    background: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.education::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(102, 126, 234, 0.1) 50%, rgba(118, 75, 162, 0.08) 70%, transparent 90%);
    background-size: 300% 300%;
    animation: diagonalMove 10s ease-in-out infinite;
    z-index: 1;
}

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

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

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

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

.timeline-year {
    flex: 1;
    text-align: right;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    padding-right: 2rem;
}

.timeline-item:nth-child(even) .timeline-year {
    text-align: left;
    padding-right: 0;
    padding-left: 2rem;
}

.timeline-content {
    flex: 1;
    background-color: white;
    padding: 1.75rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 3px solid var(--primary-color);
}

.timeline-content:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.institution {
    color: var(--text-light);
    font-style: italic;
}

/* Contact Section */
.contact {
    background: var(--light-bg);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(102, 126, 234, 0.15) 90deg, transparent 180deg, rgba(118, 75, 162, 0.12) 270deg, transparent 360deg);
    animation: rotateGlow 8s linear infinite;
    z-index: 1;
}

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

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-info {
    background-color: white;
    padding: 2.5rem 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.contact-item {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    font-size: 1.0625rem;
    flex-wrap: wrap;
}

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

.contact-label {
    font-weight: 600;
    color: var(--text-dark);
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-info {
    text-align: left;
}

.footer-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.footer-title {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 0.25rem;
}

.footer-affiliation {
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-links {
    text-align: right;
}

.footer-heading {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.2);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .navbar .container {
        padding: 0.75rem 1.5rem;
        flex-wrap: wrap;
    }
    
    .nav-brand-text {
        font-size: 1rem;
    }
    
    .nav-menu {
        gap: 0.75rem;
        font-size: 0.85rem;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 0.5rem;
    }

    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

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

    .research-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .hero-text-overlay {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }
    
    .about-text {
        font-size: 1rem;
        text-align: left;
    }
    
    .about-images-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .about-image {
        width: 100%;
        max-width: 300px;
        height: 200px;
    }
    
    .experience-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .experience-logo {
        align-self: center;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timeline-year,
    .timeline-item:nth-child(even) .timeline-year {
        text-align: left;
        padding: 0 0 1rem 0;
        font-size: 1.25rem;
    }
    
    .timeline-content {
        margin-left: 2rem;
        border-left: 3px solid var(--primary-color);
        border-radius: 0 0.75rem 0.75rem 0;
    }
    
    .contact-item {
        flex-direction: column;
        gap: 0.25rem;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-info,
    .footer-links {
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
    
    .publications-title {
        font-size: 1.5rem;
    }

    .year-toggle {
        padding: 0.5rem 0.75rem;
    }

    .year-title {
        font-size: 1.25rem;
    }

    .publication-content {
        padding: 1.25rem;
    }

    .publication-title {
        font-size: 1rem;
    }

    .publication-authors {
        font-size: 0.9rem;
    }

    .publication-journal {
        font-size: 0.85rem;
    }
    
    .startup-images {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .startup-image {
        height: 200px;
    }

    .startup-content {
        padding: 1.5rem;
    }

    .startup-name {
        font-size: 2rem;
    }

    .startup-header {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .startups-tab {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .highlights-grid {
        grid-template-columns: 1fr;
    }

    .highlight-item {
        padding: 1rem;
    }

    .startup-link {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    /* Future Ideas Toggle Section */
    .future-ideas-toggle-section {
        margin: 4rem 0;
        text-align: center;
        padding: 3rem 2rem;
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.05) 0%, 
            rgba(118, 75, 162, 0.05) 50%, 
            rgba(255, 107, 107, 0.05) 100%);
        border-radius: 2rem;
        border: 1px solid rgba(102, 126, 234, 0.1);
        position: relative;
        overflow: hidden;
    }
    
    .future-ideas-toggle-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(45deg, 
            transparent 30%, 
            rgba(102, 126, 234, 0.1) 50%, 
            transparent 70%);
        /* animation: shimmer 3s ease-in-out infinite; */
        z-index: 1;
    }
    
    .future-ideas-header {
        position: relative;
        z-index: 2;
        margin-bottom: 2rem;
    }
    
    .future-ideas-title {
        font-size: 2.5rem;
        font-weight: 700;
        background: linear-gradient(45deg, #667eea, #764ba2, #ff6b6b);
        background-size: 200% 200%;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        /* animation: gradientShift 3s ease infinite; */
        margin-bottom: 0.5rem;
    }
    
    .future-ideas-subtitle {
        font-size: 1.2rem;
        color: var(--text-light);
        font-style: italic;
    }
    
    .future-ideas-toggle-btn {
        background: linear-gradient(135deg, #667eea, #764ba2);
        color: white;
        border: none;
        padding: 1rem 2.5rem;
        border-radius: 50px;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        gap: 0.75rem;
        transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        position: relative;
        z-index: 2;
        overflow: hidden;
    }
    
    .future-ideas-toggle-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: left 0.5s;
    }
    
    .future-ideas-toggle-btn:hover::before {
        left: 100%;
    }
    
    .future-ideas-toggle-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    }
    
    .future-ideas-toggle-btn.active {
        background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
        box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    }
    
    .toggle-icon {
        transition: transform 0.3s ease;
    }
    
    .toggle-icon svg {
        width: 20px;
        height: 20px;
        transition: transform 0.3s ease;
    }
    
    /* Future Startups Section */
    .future-startups-section {
        margin-top: 2.5rem;
        padding: 0;
    }

    .future-startups-intro {
        max-width: 720px;
        margin: 0 auto 2.5rem;
        text-align: center;
    }

    .future-startups-subtitle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--secondary-color);
        background: rgba(37, 99, 235, 0.12);
        padding: 0.35rem 0.9rem;
        border-radius: 999px;
        margin-bottom: 0.75rem;
    }

    .future-startups-title {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 0.75rem;
    }

    .future-startups-description {
        color: var(--text-light);
        font-size: 1rem;
        line-height: 1.7;
    }

    /* Future Concepts - Clean Modern Design */
    .future-concepts-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
        margin-top: 1.5rem;
    }

    .concept-row {
        display: flex;
        align-items: flex-start;
        gap: 1rem;
        padding: 1.5rem;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 12px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
    }

    .concept-row:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .concept-logo-box {
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(37, 99, 235, 0.1);
        transition: all 0.3s ease;
    }

    .concept-row:hover .concept-logo-box {
        transform: scale(1.05);
        background: linear-gradient(135deg, #e8eeff 0%, #dce6ff 100%);
        border-color: var(--primary-color);
    }

    .concept-icon {
        width: 24px;
        height: 24px;
        object-fit: contain;
    }

    .concept-content {
        flex: 1;
        min-width: 0;
    }

    .concept-title {
        display: block;
        color: var(--text-dark);
        margin-bottom: 0.5rem;
        font-size: 1.1rem;
        font-weight: 600;
    }

    .concept-text {
        color: var(--text-light);
        margin: 0;
        font-size: 0.95rem;
        line-height: 1.5;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .future-concepts-container {
            grid-template-columns: 1fr;
        }

        .concept-row {
            padding: 1rem;
        }

        .concept-logo-box {
            width: 32px;
            height: 32px;
        }

        .concept-icon {
            width: 20px;
            height: 20px;
        }

        .concept-title {
            font-size: 1rem;
        }

        .concept-text {
            font-size: 0.9rem;
        }
    }

    .future-startups-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 1.75rem;
    }

    .future-startup-card {
        background: var(--bg-white);
        border: 1px solid var(--border-color);
        border-radius: 1.25rem;
        padding: 2rem;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        box-shadow: var(--shadow);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .future-startup-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }

    .future-startup-meta {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 1.5rem;
    }

    .future-startup-brand {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .future-startup-logo {
        width: 56px;
        height: 56px;
        border-radius: 0.75rem;
        background: var(--bg-light);
        border: 1px solid var(--border-color);
        padding: 0.5rem;
        object-fit: contain;
        transition: transform 0.2s ease;
    }

    .future-startup-card:hover .future-startup-logo {
        transform: scale(1.03);
    }

    .future-startup-heading {
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
    }

    .future-startup-name {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text-dark);
        margin: 0;
    }

    .future-startup-status {
        font-size: 0.75rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        padding: 0.2rem 0.75rem;
        border-radius: 999px;
        background: rgba(37, 99, 235, 0.12);
        color: var(--secondary-color);
    }

    .future-startup-card[data-theme="green"] .future-startup-status {
        background: rgba(16, 185, 129, 0.15);
        color: #047857;
    }

    .future-startup-card[data-theme="amber"] .future-startup-status {
        background: rgba(245, 158, 11, 0.2);
        color: #b45309;
    }

    .future-startup-tag {
        align-self: center;
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        padding: 0.35rem 0.8rem;
        border-radius: 999px;
        background: rgba(37, 99, 235, 0.1);
        color: var(--secondary-color);
        white-space: nowrap;
    }

    .future-startup-card[data-theme="green"] .future-startup-tag {
        background: rgba(16, 185, 129, 0.12);
        color: #047857;
    }

    .future-startup-card[data-theme="amber"] .future-startup-tag {
        background: rgba(245, 158, 11, 0.18);
        color: #b45309;
    }

    .future-startup-summary {
        color: var(--text-light);
        font-size: 1rem;
        line-height: 1.7;
    }

    .future-startup-highlights {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .future-startup-highlights li {
        display: flex;
        align-items: flex-start;
        gap: 0.85rem;
        padding: 0.9rem 1rem;
        background: var(--bg-light);
        border: 1px solid var(--border-color);
        border-radius: 1rem;
        transition: border-color 0.2s ease, background 0.2s ease;
    }

    .future-startup-card:hover .future-startup-highlights li {
        border-color: rgba(37, 99, 235, 0.2);
    }

    .future-startup-highlights svg {
        flex-shrink: 0;
        margin-top: 0.15rem;
        color: var(--secondary-color);
    }

    .future-startup-card[data-theme="green"] .future-startup-highlights svg {
        color: #047857;
    }

    .future-startup-card[data-theme="amber"] .future-startup-highlights svg {
        color: #b45309;
    }

    .future-startup-highlights strong {
        display: block;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-bottom: 0.25rem;
    }

    .future-startup-highlights p {
        margin: 0;
        color: var(--text-light);
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .future-startup-actions {
        margin-top: auto;
    }

    .future-startup-link {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-weight: 600;
        color: var(--secondary-color);
        text-decoration: none;
        transition: color 0.2s ease;
    }

    .future-startup-link svg {
        transition: transform 0.2s ease;
    }

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

    .future-startup-link:hover svg {
        transform: translateX(3px);
    }

    .future-startup-card[data-theme="green"] .future-startup-link {
        color: #047857;
    }

    .future-startup-card[data-theme="green"] .future-startup-link:hover {
        color: #065f46;
    }

    .future-startup-card[data-theme="amber"] .future-startup-link {
        color: #b45309;
    }

    .future-startup-card[data-theme="amber"] .future-startup-link:hover {
        color: #92400e;
    }
    .contact-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.75rem;
        background: linear-gradient(135deg, #667eea, #764ba2);
        color: white;
        text-decoration: none;
        padding: 1rem 2rem;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        position: relative;
        overflow: hidden;
    }
    
    .contact-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: left 0.5s;
    }
    
    .contact-btn:hover::before {
        left: 100%;
    }
    
    .contact-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    }
    
    .hero-full-image {
        object-position: center 20%;
    }
}


@media (max-width: 640px) {
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        margin-top: 1rem;
    }
    
    .startups-tab {
        margin-left: 0;
        margin-top: 0.5rem;
    }
    
    /* Future Startups Mobile Styles */
    .future-startups-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .future-startup-card {
        padding: 1.75rem;
    }

    .future-startup-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .future-startup-tag {
        align-self: flex-start;
    }

    .future-startup-highlights li {
        padding: 0.85rem 1rem;
    }

    .future-startup-link {
        font-size: 0.95rem;
    }

    .contact-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .startups-header {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    /* Future Ideas Toggle Mobile Styles */
    .future-ideas-toggle-section {
        margin: 3rem 0;
        padding: 2rem 1rem;
    }
    
    .future-ideas-title {
        font-size: 2rem;
    }
    
    .future-ideas-subtitle {
        font-size: 1rem;
    }
    
    .future-ideas-toggle-btn {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }
    
    .research-images {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .research-image {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .navbar .container {
        padding: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        max-width: 250px;
    }
}