/* CSS Variables for ASU Colors and Fonts */
:root {
    --primary-color: #A6192E;
    --secondary-color: #FFC20E;
    --background-color: #FFFFFF;
    --section-bg: #F2F2F2;
    --item-bg: #FFFFFF;
    --text-color: #333333;
    --light-text: #666666;
    --border-color: #A6192E;
    --btn-bg: #A6192E;
    --btn-hover-bg: #FFC20E;
    --nav-bg: #FFFFFF;
    --nav-text: #A6192E;
    --nav-hover: #FFC20E;
    --footer-bg: #FFFFFF;
    --footer-text: #333333;
    --social-icon-color: #A6192E;
    --social-icon-hover: #FFC20E;
    --input-bg: #FFFFFF;
    --input-border: #CCCCCC;
    --overlay-bg: rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    scroll-behavior: smooth;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    overflow: hidden;
}

nav {
    background: var(--nav-bg);
    color: var(--nav-text);
    padding: 10px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.nav-title {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    text-decoration: none;
    color: var(--nav-text);
    font-size: 1em;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--nav-hover);
}

@media (max-width: 768px) {
    .nav-title {
        font-size: 1.2em;
    }
    .nav-links {
        flex-direction: column;
        gap: 10px;
        margin-top: 10px;
    }
}

header.hero {
    background-image: url('images/asu.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-align: center;
}

header.hero .hero-content {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
    width: 80%;
}

header.hero h1 {
    font-size: 3.5em;
    color: var(--background-color);
    font-weight: bold;
    margin-bottom: 0.5em;
}

header.hero p {
    font-size: 1.5em;
    color: var(--background-color);
    margin-bottom: 1.5em;
    line-height: 1.4;
}

.btn {
    font-size: 1.2em;
    padding: 10px 20px;
    background-color: var(--btn-bg);
    color: var(--background-color);
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: var(--btn-hover-bg);
    transform: scale(1.05);
}

/* Remaining original CSS preserved */
/* All styles for .news-section, .about-video, .project-list, .fellow-photo, .avatar, etc. remain unchanged */

/* Removed styles: .hamburger, .side-menu, .overlay */

/* Additional responsiveness for mobile devices */
@media (max-width: 768px) {
    header.hero .hero-content {
        width: 95%;
    }

    header.hero h1 {
        font-size: 2.5em;
    }

    header.hero p {
        font-size: 1.2em;
    }
}

/* News Section Styling */
.news-section {
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}

.news-title {
    font-size: 2em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.news-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--primary_color);
    margin: 8px auto 0;
    border-radius: 2px;
}

.news-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.news-box {
    display: block;
    width: 80%;
    padding: 15px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    text-align: center;
    font-size: 1.1em;
    font-weight: bold;
    text-decoration: none;
    color: black;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-box:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    color: var(--primary-color);
}

/* Single Full-Width Video */
.about-video {
    width: 100%;
    max-width: 900px;
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.about-video iframe {
    position:absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 10px;
}

@media (max-width: 768px) {
    .news-box {
        width: 90%;
        font-size: 1em;
    }

    .about-video {
        max-width: 100%;
    }

    .news-title {
        font-size: 1.8em;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .news-box {
        width: 90%;
        font-size: 1em;
    }

    .about-video {
        max-width: 100%;
    }

    .news-title {
        font-size: 1.8em;
    }
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001; /* Ensure it stays above the side menu */
    background: none;
    border: none;
    padding: 0;
}

.hamburger span {
    height: 2px;
    width: 25px;
    background: var(--nav-text);
    margin-bottom: 4px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

/* Side Navigation Menu */
.side-menu {
    position: fixed;
    top: 0;
    right: -100%; /* Hide the menu off-screen */
    width: 250px;
    height: 100%;
    background: var(--nav-bg);
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.side-menu.open {
    right: 0; /* Slide the menu into view */
}

.side-menu ul {
    list-style: none;
    width: 100%;
    text-align: center;
}

.side-menu ul li {
    margin: 20px 0;
}

.side-menu ul li a {
    color: var(--nav-text);
    text-decoration: none;
    font-size: 1.2em;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.side-menu ul li a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--primary_color);
    transition: width .3s;
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
}

.side-menu ul li a:hover::after {
    width: 50%;
}

.side-menu ul li a:hover {
    color: var(--nav-hover);
}

/* Active Hamburger Animation */
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

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

/* Overlay for Blurred Background */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay_bg);
    backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999; /* Below the side menu */
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section with Background Image */
header.hero {
    background-image: url('images/asu.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    text-align: center;
    position: relative;
    padding-top: 50px;
    animation: fadeIn 2s ease-in-out;
}

header.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
}

header.hero .hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

header.hero h1 {
    font-size: 3em;
    margin-bottom: 10px;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateY(-20px);
    animation: slideUp 1s forwards;
}

header.hero h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #FFFFFF;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateY(-20px);
    animation: slideUp 1s forwards;
    animation-delay: 0.3s;
}

header.hero p {
    font-size: 1.3em;
    margin-bottom: 30px;
    color: #FFFFFF;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateY(-20px);
    animation: slideUp 1s forwards;
    animation-delay: 0.6s;
}

header.hero .btn {
    padding: 15px 30px;
    background: var(--btn_bg);
    color: var(--background_color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    transition: background 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: scale(0.9);
    animation: fadeInUp 1s forwards;
    animation-delay: 0.9s;
}

header.hero .btn:hover {
    background: var(--btn_hover_bg);
    transform: translateY(-3px) scale(1.05);
}

/* Sections */
section {
    padding: 80px 0;
}

section#about,
section#projects,
section#faculty,
section#fellows,
section#contact {
    background: var(--section_bg);
    border-bottom: 2px solid #CCCCCC;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
}

section#about.animate-fade-in,
section#projects.animate-fade-in,
section#faculty.animate-fade-in,
section#fellows.animate-fade-in,
section#contact.animate-fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 1s forwards;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5em;
    color: var(--primary_color);
    position: relative;
    opacity: 0;
    transform: translateY(-20px);
    animation: slideDown 1s forwards;
}

section h2::after {
    content: '';
    width: 60px;
    height: 4px;
    background: var(--primary_color);
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

section p {
    max-width: 800px;
    margin: auto;
    font-size: 1.1em;
    color: var(--light_text);
    line-height: 1.8;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
}

section p.delay-1 {
    animation-delay: 0.5s;
}

section p.delay-2 {
    animation-delay: 1s;
}

/* About Video */
.about-video {
    margin: 40px auto;
    max-width: 800px;
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.about-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 10px;
}

/* Project and People Lists */
.project-list,
.fellows-list,
.people-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: 20px;
}

.project-item,
.person-item,
.fellow-item {
    background: var(--item_bg);
    padding: 30px;
    margin: 10px;
    flex: 1 1 30%;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
}

.project-item.delay-1,
.person-item.delay-1,
.fellow-item.delay-1 {
    animation-delay: 0.5s;
}

.project-item.delay-2,
.person-item.delay-2,
.fellow-item.delay-2 {
    animation-delay: 1s;
}

.project-item.delay-3,
.person-item.delay-3,
.fellow-item.delay-3 {
    animation-delay: 1.5s;
}

.project-item.delay-4,
.person-item.delay-4,
.fellow-item.delay-4 {
    animation-delay: 2s;
}

.project-item.delay-5,
.person-item.delay-5,
.fellow-item.delay-5 {
    animation-delay: 2.5s;
}

.project-item.delay-6,
.person-item.delay-6,
.fellow-item.delay-6 {
    animation-delay: 3s;
}

.project-item.delay-7,
.person-item.delay-7,
.fellow-item.delay-7 {
    animation-delay: 3.5s;
}

.project-item.delay-8,
.person-item.delay-8,
fellow-item.delay-8 {
    animation-delay: 4s;
}

.fellow-item.delay-9,
.fellow-item.delay-10,
fellow-item.delay-11,
fellow-item.delay-12,
fellow-item.delay-13,
fellow-item.delay-14,
fellow-item.delay-15,
fellow-item.delay-16,
fellow-item.delay-17,
fellow-item.delay-18,
fellow-item.delay-19,
fellow-item.delay-20,
fellow-item.delay-21 {
    animation-delay: 4.5s; /* Continue incrementing as needed */
}

.project-item:hover,
.person-item:hover,
fellow-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.project-item h3,
.person-item h3,
fellow-item h3 {
    margin-bottom: 15px;
    font-size: 1.5em;
    color: var(--primary_color);
}

.project-item p,
.person-item p,
fellow-item p {
    font-size: 1em;
    color: var(--light_text);
    line-height: 1.6;
}

/* Expandable Project Info */
.project-info {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.5s ease;
}

.project-item:hover .project-info {
    max-height: 200px; /* Adjust as needed */
    opacity: 1;
}

/* Project Links */
.project-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.project-links .btn {
    padding: 10px 20px;
    font-size: 0.9em;
}

/* Avatar for People Section */
.avatar {
    width: 150px;
    height: 150px;
    background: var(--secondary_color);
    color: var(--background_color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    font-weight: bold;
    margin: 0 auto 20px auto;
    transition: background 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.person-item:hover .avatar {
    background: var(--btn_hover_bg);
}

/* Fellow Photo Styling */
.fellow-photo {
    width: 120px; /* Adjusted width */
    height: 120px; /* Adjusted height */
    object-fit: cover; /* Ensures the image covers the container without distortion */
    border-radius: 50%;
    margin: 0 auto 20px auto;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.fellow-photo:hover {
    transform: scale(1.05);
}

/* Project Logo */
.project-logo {
    width: 150px; /* Adjust size as needed */
    height: auto;
    margin-bottom: 15px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.project-logo:hover {
    transform: scale(1.05);
}

/* Contact Section */
section#contact form {
    max-width: 600px;
    margin: auto;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
    animation-delay: 0.5s;
}

section#contact label {
    margin-bottom: 8px;
    font-weight: 700;
    text-align: left;
    color: var(--text_color);
}

section#contact input,
section#contact textarea {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid var(--input_border);
    border-radius: 8px;
    font-size: 1em;
    background: var(--input_bg);
    color: var(--text_color);
    transition: border 0.3s ease, background 0.3s ease;
}

section#contact input:focus,
section#contact textarea:focus {
    border: 1px solid var(--primary_color);
    outline: none;
    background: #F9F9F9;
}

section#contact input::placeholder,
section#contact textarea::placeholder {
    color: #999999;
}

section#contact .btn {
    align-self: flex-start;
    padding: 15px 30px;
    background: var(--btn_bg);
    color: var(--background_color);
    border: none;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    animation: pulse 2s infinite;
}

section#contact .btn:hover {
    background: var(--btn_hover_bg);
    transform: translateY(-3px);
}

/* Footer */
footer {
    background: var(--footer_bg);
    color: var(--footer_text);
    padding: 30px 0;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
    animation-delay: 0.5s;
}

footer p {
    margin-bottom: 15px;
    font-size: 1em;
}

footer .social-links a {
    color: var(--social_icon_color);
    margin: 0 15px;
    text-decoration: none;
    font-size: 1.5em;
    transition: color 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards;
}

footer .social-links a.delay-1 {
    animation-delay: 0.5s;
}

footer .social-links a.delay-2 {
    animation-delay: 1s;
}

footer .social-links a:hover {
    color: var(--social_icon_hover);
}

/* Button Styling */
.btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--btn_bg);
    color: var(--background_color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    transition: background 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background: var(--btn_hover_bg);
    transform: translateY(-3px);
}

/* Animations */

/* Fade In */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Slide Down for Section Headings */
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Slide Up for Elements */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Fade In Up */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Pulse Animation for Buttons */
@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 194, 14, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(255, 194, 14, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 194, 14, 0);
    }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .project-item,
    .person-item,
    .fellow-item {
        flex: 1 1 45%;
    }

    /* Adjusted title size for medium screens */
    .nav-title {
        font-size: 1.3em;
        /* margin-left: -8px; /* Removed to maintain alignment */
    }
}

@media (max-width: 768px) {
    .project-list,
    .people-list,
    .fellows-list {
        flex-direction: column;
        align-items: center;
    }

    .project-item,
    .person-item,
    .fellow-item {
        flex: 1 1 80%;
    }

    header.hero h1 {
        font-size: 2.5em;
    }

    header.hero h2 {
        font-size: 1.8em;
    }

    header.hero p {
        font-size: 1.2em;
    }

    /* Further adjust title size for smaller screens */
    .nav-title {
        font-size: 1.1em;
        /* margin-left: -5px; /* Removed to maintain alignment */
    }
}

@media (max-width: 480px) {
    .avatar {
        width: 120px;
        height: 120px;
        font-size: 1.5em;
    }

    .fellow-photo {
        width: 100px; /* Further reduce for very small screens */
        height: 100px;
    }

    section#about,
    section#projects,
    section#faculty,
    section#fellows,
    section#contact {
        padding: 60px 0;
    }

    section h2 {
        font-size: 2em;
    }

    .project-item,
    .person-item,
    .fellow-item {
        padding: 20px;
    }

    .project-logo {
        width: 100px; /* Adjust size for smaller screens */
    }

    /* Adjust About Video for Small Screens */
    .about-video {
        max-width: 100%;
    }

    /* Further reduce title size for very small screens */
    .nav-title {
        font-size: 1em;
        /* margin-left: -3px; /* Removed to maintain alignment */
    }
}

/* Side Menu Link Animation */
.side-menu ul li a {
    opacity: 0;
    transform: translateX(50px);
    animation: slideInMenu 0.3s forwards;
}

.side-menu.open ul li a {
    opacity: 1;
    transform: translateX(0);
}

@keyframes slideInMenu {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Overlay Scroll Lock */
body.menu-open {
    overflow: hidden;
}

/* Focus States for Interactive Elements */
.hamburger:focus,
.nav-title:focus {
    outline: 2px solid var(--primary_color);
    outline-offset: 4px;
}