/* css/style.css */
:root {
    --primary: #0a192f;
    --secondary: #112240;
    --accent: #64ffda;
    --accent-light: #a8ffec;
    --text-primary: #e6f1ff;
    --text-secondary: #a8b2d1;
    --text-tertiary: #8892b0;
    --dark: #020c1b;
    --light: #f8f9fa;
    --success: #64ffda;
    --warning: #ffd166;
    --danger: #ef476f;
    --shadow: 0 10px 30px rgba(2, 12, 27, 0.7);
    --transition: all 0.3s ease;
    --gradient: linear-gradient(135deg, #0a192f 0%, #112240 50%, #020c1b 100%);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

.btn-primary, .btn-secondary, .btn-nav, .btn-submit, .btn-small {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    z-index: -1;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(100, 255, 218, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-secondary:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
}

.btn-nav {
    padding: 8px 20px;
    background: var(--accent);
    color: var(--primary);
    font-size: 0.8rem;
}

.btn-nav:hover {
    background: var(--accent-light);
}

.btn-submit {
    background: var(--accent);
    color: var(--primary);
    width: 100%;
    margin-top: 20px;
}

.btn-submit:hover {
    background: var(--accent-light);
}

.btn-small {
    padding: 8px 16px;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    font-size: 0.8rem;
}

.btn-small:hover {
    background: rgba(100, 255, 218, 0.1);
}

.btn-modal-close {
    background: var(--text-tertiary);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 15px;
}

.btn-modal-close:hover {
    background: var(--text-secondary);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo i {
    color: var(--accent);
    margin-right: 10px;
    font-size: 1.8rem;
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-link {
    margin: 0 15px;
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    padding: 5px 0;
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.bar {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.bar:nth-child(1) {
    top: 0;
}

.bar:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.bar:nth-child(3) {
    bottom: 0;
}

.menu-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

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

.hero-content {
    max-width: 800px;
    margin-bottom: 60px;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.highlight {
    color: var(--accent);
    position: relative;
}

.subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 300px;
    margin-top: 40px;
}

.molecule-container {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 100px;
}

.molecule {
    position: relative;
    width: 150px;
    height: 150px;
}

.atom {
    position: absolute;
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent);
}

.atom.center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--accent-light);
    width: 40px;
    height: 40px;
}

.bond {
    position: absolute;
    height: 2px;
    background: var(--accent);
    width: 100px;
    top: 50%;
    left: 50%;
    transform-origin: left center;
}

#molecule-1 .atom:nth-child(3) { top: 20%; left: 20%; }
#molecule-1 .atom:nth-child(5) { top: 20%; left: 80%; }
#molecule-1 .bond:nth-child(2) { transform: rotate(45deg); }
#molecule-1 .bond:nth-child(4) { transform: rotate(-45deg); }

#molecule-2 .atom:nth-child(3) { top: 10%; left: 30%; }
#molecule-2 .atom:nth-child(5) { top: 10%; left: 70%; }
#molecule-2 .atom:nth-child(7) { top: 60%; left: 50%; }
#molecule-2 .bond:nth-child(2) { transform: rotate(30deg); }
#molecule-2 .bond:nth-child(4) { transform: rotate(-30deg); }
#molecule-2 .bond:nth-child(6) { transform: rotate(90deg); width: 70px; }

.data-stream {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
}

.data-point {
    width: 8px;
    background: var(--accent);
    border-radius: 4px 4px 0 0;
    animation: data-stream 2s infinite;
    opacity: 0.7;
}

.data-point:nth-child(1) { height: 40px; animation-delay: 0s; }
.data-point:nth-child(2) { height: 70px; animation-delay: 0.2s; }
.data-point:nth-child(3) { height: 30px; animation-delay: 0.4s; }
.data-point:nth-child(4) { height: 90px; animation-delay: 0.6s; }
.data-point:nth-child(5) { height: 50px; animation-delay: 0.8s; }

@keyframes data-stream {
    0%, 100% { transform: translateY(0); opacity: 0.7; }
    50% { transform: translateY(-20px); opacity: 1; }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--accent);
    border-radius: 13px;
    margin: 0 auto 10px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* Section Styling */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header span {
    color: var(--accent);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.about-card {
    background: var(--secondary);
    border-radius: 10px;
    padding: 30px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

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

.card-animation {
    position: absolute;
    bottom: 20px;
    right: 20px;
    opacity: 0.5;
}

.pulse-dot {
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.2); opacity: 1; }
}

.neuron-connection {
    width: 40px;
    height: 40px;
    position: relative;
}

.neuron-connection::before, .neuron-connection::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 100%;
    background: var(--accent);
    left: 50%;
    transform: translateX(-50%);
}

.neuron-connection::after {
    width: 100%;
    height: 2px;
    top: 50%;
    transform: translateY(-50%);
}

.rotating-globe {
    width: 30px;
    height: 30px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    position: relative;
    animation: rotate 10s linear infinite;
}

.rotating-globe::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--accent);
    top: 50%;
    transform: translateY(-50%);
}

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

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    background: var(--secondary);
    border-radius: 10px;
    padding: 40px;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 10px;
    font-family: 'Source Code Pro', monospace;
}

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

/* Research Section */
.research {
    background: var(--secondary);
}

.tab-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 15px 25px;
    background: transparent;
    border: 1px solid rgba(100, 255, 218, 0.2);
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

.tab-btn:hover, .tab-btn.active {
    background: rgba(100, 255, 218, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.tab-pane {
    display: none;
    background: var(--primary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.tab-pane.active {
    display: block;
}

.pane-content {
    display: flex;
    flex-wrap: wrap;
    padding: 40px;
    gap: 40px;
}

.pane-visual {
    flex: 1;
    min-width: 300px;
    height: 300px;
    position: relative;
}

.quantum-visualization {
    width: 100%;
    height: 100%;
    position: relative;
}

.quantum-particle {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent);
    animation: quantum-move 3s infinite alternate;
}

#particle1 {
    top: 30%;
    left: 30%;
    animation-delay: 0s;
}

#particle2 {
    top: 60%;
    left: 60%;
    animation-delay: 1.5s;
}

@keyframes quantum-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, -30px); }
}

.quantum-field {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(100, 255, 218, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(100, 255, 218, 0.1) 0%, transparent 50%);
    animation: field-pulse 4s infinite;
}

@keyframes field-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.nano-visualization {
    width: 100%;
    height: 100%;
    position: relative;
}

.nano-structure {
    position: absolute;
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: 
        linear-gradient(45deg, transparent 48%, var(--accent) 48%, var(--accent) 52%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, var(--accent) 48%, var(--accent) 52%, transparent 52%);
    background-size: 20px 20px;
}

.nano-particle {
    position: absolute;
    width: 15px;
    height: 15px;
    background: var(--accent-light);
    border-radius: 50%;
    animation: nano-float 4s infinite;
}

.nano-particle:nth-child(2) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.nano-particle:nth-child(3) {
    top: 20%;
    left: 70%;
    animation-delay: 1s;
}

.nano-particle:nth-child(4) {
    top: 70%;
    left: 50%;
    animation-delay: 2s;
}

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

.pane-text {
    flex: 1;
    min-width: 300px;
}

.pane-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.pane-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.pane-text ul {
    list-style: none;
    margin-bottom: 30px;
}

.pane-text li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.pane-text i {
    color: var(--accent);
    margin-right: 10px;
}

/* Facilities Section */
.facilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

@media (max-width: 600px) {
    .facilities-grid {
        grid-template-columns: 1fr;
    }
}

.facility-card {
    background: var(--secondary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(100, 255, 218, 0.1);
    transition: var(--transition);
}

.facility-card:hover {
    transform: translateY(-10px);
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow);
}

.facility-image {
    height: 200px;
    background: linear-gradient(135deg, #0a192f, #112240);
    position: relative;
    overflow: hidden;
}
.facility-image img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(transparent, rgba(10, 25, 47, 0.9));
}

.image-overlay h4 {
    color: var(--accent);
    font-size: 1.2rem;
}

.facility-animation {
    position: absolute;
    width: 100%;
    height: 100%;
}

.clean-room-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--accent-light);
    border-radius: 50%;
    opacity: 0.5;
    animation: clean-room-float 6s infinite;
}

.clean-room-particle:nth-child(1) {
    top: 20%;
    left: 30%;
    animation-delay: 0s;
}

.clean-room-particle:nth-child(2) {
    top: 60%;
    left: 60%;
    animation-delay: 2s;
}

.clean-room-particle:nth-child(3) {
    top: 40%;
    left: 80%;
    animation-delay: 4s;
}

@keyframes clean-room-float {
    0%, 100% { transform: translate(0, 0); opacity: 0.5; }
    50% { transform: translate(20px, -20px); opacity: 0.8; }
}

.cold-wave {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 50% 50%, rgba(100, 255, 218, 0.1) 0%, transparent 70%);
    animation: cold-pulse 4s infinite;
}

@keyframes cold-pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.facility-info {
    padding: 30px;
}

.facility-info h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent);
}

.facility-info p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.facility-specs {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.facility-specs span {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.facility-specs i {
    color: var(--accent);
}

.equipment-showcase {
    background: var(--primary);
    border-radius: 10px;
    padding: 40px;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.equipment-showcase h3 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.8rem;
    color: var(--accent);
}

.equipment-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.equipment-item {
    text-align: center;
    padding: 20px;
    transition: var(--transition);
}

.equipment-item:hover {
    transform: translateY(-5px);
}

.equipment-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 15px;
}

.equipment-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.equipment-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.team-member {
    background: var(--secondary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(100, 255, 218, 0.1);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-10px);
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow);
}

.member-image {
    height: 200px;
    background: linear-gradient(135deg, #0a192f, #112240);
    position: relative;
}

.image-frame {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(100, 255, 218, 0.3);
}
.image-frame img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-animation {
    position: absolute;
    width: 100%;
    height: 100%;
}

.connection-node {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 15px var(--accent);
}

.connection-line {
    position: absolute;
    width: 2px;
    height: 50px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    opacity: 0.5;
}

.member-info {
    padding: 30px;
}

.member-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--accent);
}

.member-title {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.member-bio {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 0.9rem;
}

.member-links {
    display: flex;
    gap: 15px;
}

.member-links a {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--accent);
    font-size: 0.8rem;
    transition: var(--transition);
}

.member-links a:hover {
    color: var(--accent-light);
}

.team-cta {
    text-align: center;
    background: var(--secondary);
    border-radius: 10px;
    padding: 40px;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.team-cta h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--accent);
}

.team-cta p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Publications */
.publications-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.publication-item {
    background: var(--secondary);
    border-radius: 10px;
    padding: 30px;
    border: 1px solid rgba(100, 255, 218, 0.1);
    transition: var(--transition);
    position: relative;
}

.publication-item:hover {
    transform: translateY(-10px);
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow);
}

.pub-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent);
    color: var(--primary);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.publication-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.pub-authors {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.pub-abstract {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.pub-links {
    display: flex;
    gap: 15px;
}

.pub-links a {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--accent);
    font-size: 0.9rem;
    transition: var(--transition);
}

.pub-links a:hover {
    color: var(--accent-light);
}

.publications-cta {
    text-align: center;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--accent);
}

.contact-details {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent);
    margin-right: 15px;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.collaboration-cta {
    background: var(--secondary);
    border-radius: 10px;
    padding: 25px;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.collaboration-cta h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--accent);
}

.collaboration-cta p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.contact-form-container {
    background: var(--secondary);
    border-radius: 10px;
    padding: 40px;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--accent);
    text-align: center;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--text-tertiary);
    color: var(--text-primary);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}
.form-group select{
    background: var(--secondary);
}
input{
    outline: none !important;
}

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

.form-group label {
    position: absolute;
    top: 10px;
    left: 0;
    color: var(--text-tertiary);
    font-size: 1rem;
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group select:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group select:not([value=""]) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -15px;
    font-size: 0.8rem;
    color: var(--accent);
}

.form-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.form-group input:focus ~ .form-underline,
.form-group select:focus ~ .form-underline,
.form-group textarea:focus ~ .form-underline {
    width: 100%;
}

/* Tour Section */
.tour {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.tour-content {
    position: relative;
    z-index: 2;
}

.tour h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.tour span {
    color: var(--accent);
}

.tour p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 40px;
    color: var(--text-secondary);
}

.tour-animation {
    margin-top: 40px;
    position: relative;
    height: 100px;
}

.vr-headset {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 60px;
    background: var(--secondary);
    border-radius: 30px;
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: space-around;
    animation: vr-float 3s infinite alternate;
}

.vr-lens {
    width: 30px;
    height: 30px;
    background: var(--primary);
    border-radius: 50%;
    border: 2px solid var(--accent);
    position: relative;
    overflow: hidden;
}

.vr-lens::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 30%, var(--accent) 0%, transparent 70%);
    animation: vr-scan 2s infinite;
}

@keyframes vr-float {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(-50%, -60%); }
}

@keyframes vr-scan {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(10px, 10px); }
}

/* Footer */
.footer {
    background: var(--secondary);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
    overflow: hidden;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin: 20px 0;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(100, 255, 218, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--accent);
}

.social-links a:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-5px);
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent);
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-newsletter p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.newsletter-form {
    display: flex;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    background: var(--primary);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 4px 0 0 4px;
    color: var(--text-primary);
    font-family: 'Montserrat', sans-serif;
}

.newsletter-form button {
    background: var(--accent);
    color: var(--primary);
    border: none;
    padding: 0 20px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--accent-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: var(--text-tertiary);
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--accent);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 12, 27, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: var(--secondary);
    border-radius: 10px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    position: relative;
    border: 1px solid rgba(100, 255, 218, 0.2);
    animation: modal-appear 0.5s ease-out;
}

@keyframes modal-appear {
    0% {
        opacity: 0;
        transform: translateY(-50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-icon {
    font-size: 4rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.modal h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.6;
}

/* Responsive Styles */
@media (max-width: 1200px){
    .logo i{
        font-size: 20px;
    }
    .logo{
        font-size: 16px;
    }
    .nav-link{
        margin: 0 5px;
    }
    .btn-nav{
        padding: 8px 10px;
    }
}
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .pane-content {
        flex-direction: column;
    }
    .nano-visualization,
    .quantum-visualization{
        height: 200px;
    }
    .nano-structure{
        width: 100%;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--secondary);
        flex-direction: column;
        align-items: center;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(2, 12, 27, 0.5);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        z-index: 999;
        border-top: 1px solid rgba(100, 255, 218, 0.1);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-link {
        margin: 15px 0;
        font-size: 1.1rem;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tab-btn {
        text-align: center;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .about-card, .facility-info, .team-member, .publication-item,
    .contact-form-container, .collaboration-cta {
        padding: 20px;
    }
    
    .pane-content, .contact-container {
        padding: 20px;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        padding: 20px;
    }
    
    .publications-list {
        grid-template-columns: 1fr;
    }
}