:root, [data-theme="light"] {
    /* Color Palette - Light Mode */
    --bg-color: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #3b82f6;
    --accent-secondary: #0ea5e9;
    --card-bg: #ffffff;
    --border-color: rgba(15, 23, 42, 0.08);
    
    /* Theme specific component colors */
    --navbar-bg: rgba(255, 255, 255, 0.65);
    --navbar-border: rgba(0, 0, 0, 0.08);
    --split-bg: rgba(255, 255, 255, 0.7);
    --split-border: rgba(255, 255, 255, 0.3);
    --logo-slider-bg: #ffffff;
    --footer-bg: #0f172a;
    --footer-text: #94a3b8;
    --media-bg: #f8fafc;
    
    /* Shadows */
    --shadow-soft: 0 10px 40px -10px rgba(0,0,0,0.08);
    --shadow-hover: 0 20px 40px -10px rgba(59, 130, 246, 0.15);

    /* iPhone Glassmorphism Variables */
    --glass-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0.35) 45%, rgba(255, 255, 255, 0.2) 100%), rgba(255, 255, 255, 0.2);
    --glass-border: rgba(255, 255, 255, 0.75);
    --glass-shadow: 0 15px 35px -10px rgba(15, 23, 42, 0.08), 
                    0 5px 15px -5px rgba(0, 0, 0, 0.04),
                    inset 0 1.5px 2px rgba(255, 255, 255, 0.95), 
                    inset 0 -1.5px 2px rgba(0, 0, 0, 0.02);
    --glass-shadow-hover: 0 25px 45px -10px rgba(59, 130, 246, 0.2), 
                          0 10px 20px -5px rgba(59, 130, 246, 0.1),
                          inset 0 1.5px 2px rgba(255, 255, 255, 0.95), 
                          inset 0 -1.5px 2px rgba(0, 0, 0, 0.02);
    --glass-blur: blur(25px) saturate(210%);
}

[data-theme="dark"] {
    /* Color Palette - Dark Mode */
    --bg-color: #0b0f19;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-secondary: #38bdf8;
    --card-bg: #111827;
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Theme specific component colors */
    --navbar-bg: rgba(11, 15, 25, 0.65);
    --navbar-border: rgba(255, 255, 255, 0.08);
    --split-bg: rgba(17, 24, 39, 0.7);
    --split-border: rgba(255, 255, 255, 0.1);
    --logo-slider-bg: #111827;
    --footer-bg: #030712;
    --footer-text: #6b7280;
    --media-bg: #1e293b;
    
    /* Shadows */
    --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 20px 40px -10px rgba(59, 130, 246, 0.3);

    /* iPhone Glassmorphism Variables */
    --glass-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 45%, rgba(255, 255, 255, 0.01) 100%), rgba(11, 15, 25, 0.45);
    --glass-border: rgba(255, 255, 255, 0.14);
    --glass-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.55), 
                    0 5px 15px -5px rgba(0, 0, 0, 0.3),
                    inset 0 1.5px 1px rgba(255, 255, 255, 0.22), 
                    inset 0 -1.5px 1px rgba(0, 0, 0, 0.35);
    --glass-shadow-hover: 0 25px 45px -10px rgba(59, 130, 246, 0.35), 
                          0 10px 20px -5px rgba(59, 130, 246, 0.18),
                          inset 0 1.5px 1px rgba(255, 255, 255, 0.3), 
                          inset 0 -1.5px 1px rgba(0, 0, 0, 0.35);
    --glass-blur: blur(25px) saturate(210%);
}

:root {
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --container-max-width: 1200px;
    --section-padding: 2.5rem 2rem 4rem 2rem;
    --border-radius: 28px;
}

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

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    position: relative;
}

/* Premium Animated Ambient Background Blobs simulating iOS */
body::before {
    content: '';
    position: fixed;
    top: -20%;
    left: -10%;
    width: 70vw;
    height: 70vh;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.16) 0%, transparent 70%);
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    animation: float-blob-1 25s infinite alternate ease-in-out;
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%;
    right: -10%;
    width: 70vw;
    height: 70vh;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.16) 0%, transparent 70%);
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    animation: float-blob-2 30s infinite alternate ease-in-out;
}

[data-theme="dark"] body::before {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.22) 0%, transparent 70%);
}

[data-theme="dark"] body::after {
    background: radial-gradient(circle, rgba(56, 189, 248, 0.22) 0%, transparent 70%);
}

@keyframes float-blob-1 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(5%, 10%) scale(1.15); }
    100% { transform: translate(-5%, -5%) scale(0.9); }
}

@keyframes float-blob-2 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-10%, -5%) scale(0.85); }
    100% { transform: translate(5%, 5%) scale(1.15); }
}

p {
    text-align: justify;
}

/* Slider Section */
.slider-section {
    width: 100%;
    height: 40vh; /* Adjust height as needed */
    max-height: 400px; /* Prevents it from getting too tall on giant monitors */
    min-height: 220px; /* Prevents it from getting too narrow on small devices */
    overflow: hidden;
    position: relative;
    background: #000;
}

.slider-track {
    display: flex;
    width: max-content;
    height: 100%;
    /* Animation is set in JS based on total width */
    animation: scrollSlider 30s linear infinite;
}

.slider-track img {
    height: 100%;
    width: auto;
    object-fit: cover;
    flex-shrink: 0;
    opacity: 1;
    transition: transform 0.3s ease;
}

.slider-track:hover {
    animation-play-state: paused;
}

.slider-track img:hover {
    transform: scale(1.05);
}

@keyframes scrollSlider {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50%)); } /* -50% because we duplicate images for seamless loop */
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Welcome Section */
.welcome-section {
    text-align: center;
    padding: var(--section-padding);
    max-width: 800px;
    margin: 0 auto;
}

.welcome-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.tagline-wrapper {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 2.5rem auto;
    overflow: visible;
}

.welcome-tagline {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0.65rem 2.4rem;
    border-radius: 50px;
    overflow: hidden;
    text-transform: uppercase;

    /* Tagline text color — uses theme accent for perfect blending */
    color: var(--accent-primary);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 3px;

    /* Default: invisible capsule — glass only shows on hover */
    background: rgba(255, 255, 255, 0);
    backdrop-filter: blur(0px) saturate(100%);
    -webkit-backdrop-filter: blur(0px) saturate(100%);
    border: 1px solid transparent;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0), inset 0 0 0 rgba(255, 255, 255, 0);
    transform: scale(1) translateY(0);
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1),
                background 0.45s ease,
                border-color 0.45s ease,
                box-shadow 0.45s ease,
                backdrop-filter 0.45s ease,
                text-shadow 0.45s ease,
                color 0.45s ease;
}

[data-theme="light"] .welcome-tagline {
    color: var(--accent-primary);
    background: transparent;
    border: 1px solid transparent;
    box-shadow: none;
}

/* Passing star comet effect */
.passing-star-container {
    position: absolute;
    pointer-events: none;
    z-index: 20;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    overflow: visible;
}

.passing-star {
    position: absolute;
    pointer-events: none;
    width: 18px;
    height: 18px;
    z-index: 20;
    filter:
        drop-shadow(0 0 5px #ffd700)
        drop-shadow(0 0 12px #ffaa00)
        drop-shadow(0 0 22px rgba(255, 255, 255, 0.7));
    transform-origin: center center;
    animation: star-pulse 0.5s ease-in-out infinite alternate;
}

@keyframes star-pulse {
    from { filter: drop-shadow(0 0 5px #ffd700) drop-shadow(0 0 12px #ffaa00) drop-shadow(0 0 22px rgba(255,255,255,0.7)); }
    to   { filter: drop-shadow(0 0 10px #ffd700) drop-shadow(0 0 20px #ff8800) drop-shadow(0 0 35px rgba(255,255,255,0.5)); }
}

.star-trail-dot {
    position: absolute;
    pointer-events: none;
    border-radius: 50%;
    z-index: 18;
    animation: trail-dot-fade 0.6s ease-out forwards;
}

@keyframes trail-dot-fade {
    0%   { opacity: 0.9; transform: scale(1); }
    100% { opacity: 0;   transform: scale(0.1) translateY(8px); }
}

/* Text style — inherits from .welcome-tagline parent */
.welcome-tagline .tagline-text {
    font-size: inherit;
    font-weight: inherit;
    letter-spacing: inherit;
    color: inherit;
}

/* Glossy sweep glare effect */
.welcome-tagline::before {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 120%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0) 10%,
        rgba(255, 255, 255, 0.25) 50%,
        rgba(255, 255, 255, 0) 90%,
        transparent
    );
    transform: skewX(-20deg);
    transition: none;
}

[data-theme="light"] .welcome-tagline::before {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0) 10%,
        rgba(255, 255, 255, 0.5) 50%,
        rgba(255, 255, 255, 0) 90%,
        transparent
    );
}

/* Sweep animation on hover */
.welcome-tagline:hover::before {
    left: 150%;
    transition: left 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* On hover: reveal the premium iPhone glass bubble */
.welcome-tagline:hover {
    transform: scale(1.04) translateY(-3px);
    background: linear-gradient(
        180deg, 
        rgba(255, 255, 255, 0.08) 0%, 
        rgba(255, 255, 255, 0.01) 100%
    ), rgba(59, 130, 246, 0.05);
    backdrop-filter: blur(25px) saturate(190%);
    -webkit-backdrop-filter: blur(25px) saturate(190%);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 
        0 15px 35px -10px rgba(0, 0, 0, 0.45),
        0 5px 15px -5px rgba(59, 130, 246, 0.25),
        inset 0 1px 1px rgba(255, 255, 255, 0.25),
        inset 0 -1px 1px rgba(0, 0, 0, 0.15);
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
    
    /* iOS Spring bounce transition on hover start */
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                background 0.4s ease,
                border-color 0.4s ease,
                box-shadow 0.4s ease,
                backdrop-filter 0.4s ease,
                text-shadow 0.4s ease,
                color 0.4s ease;
}

[data-theme="light"] .welcome-tagline:hover {
    background: linear-gradient(
        180deg, 
        rgba(255, 255, 255, 0.75) 0%, 
        rgba(255, 255, 255, 0.3) 100%
    ), rgba(59, 130, 246, 0.03);
    backdrop-filter: blur(25px) saturate(190%);
    -webkit-backdrop-filter: blur(25px) saturate(190%);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 
        0 15px 35px -10px rgba(29, 78, 216, 0.15),
        0 5px 15px -5px rgba(29, 78, 216, 0.08),
        inset 0 1px 1px rgba(255, 255, 255, 0.95),
        inset 0 -1px 1px rgba(0, 0, 0, 0.03);
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.7), 0 0 6px rgba(59, 130, 246, 0.15);
}

.welcome-section p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: justify;
}


/* Split Sections (Research & Opportunities) */
.split-section {
    display: flex;
    align-items: center;
    gap: 4rem;
    padding: 4rem 0;
    margin-bottom: 4rem;
}

.split-section.reverse-layout {
    flex-direction: row-reverse;
}

.split-image-container {
    flex: 1;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: none;
    transition: transform 0.4s ease;
    aspect-ratio: 4 / 3;
}

.split-image-container:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.split-image-container img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.split-image-container video {
    display: block;
    width: 100%;
    height: auto;
    object-fit: unset;
    transition: transform 0.6s ease;
}

.split-image-container:hover img,
.split-image-container:hover video {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom right, rgba(59, 130, 246, 0.1), transparent);
    pointer-events: none;
    z-index: 2;
}

/* Opportunities Logo Blending & Merging Fix */
#opportunities-section .split-image-container {
    background: #ffffff !important; /* Set solid white background in light mode to force layer composition */
    box-shadow: none !important;
    border: none !important;
    align-self: center;
    overflow: visible !important; /* Break stacking context isolation */
    border-radius: 0 !important; /* Break stacking context isolation */
    mix-blend-mode: multiply !important; /* Apply to parent wrapper to force rendering layer grouping */
    isolation: auto !important;
}

#opportunities-section .split-image-container .image-overlay {
    display: none !important; /* Hide standard photo overlay */
}

/* Light mode: video/image has transparent background and inherits blend mode from container */
#opportunities-section .split-image-container video,
#opportunities-section .split-image-container img {
    background: transparent !important;
    transform: translate3d(0, 0, 0); /* Force GPU layers composition */
}

/* Dark mode: change parent blend mode and background to black to match the inverted video */
[data-theme="dark"] #opportunities-section .split-image-container {
    background: #000000 !important; /* Set solid black background in dark mode to force layer composition */
    mix-blend-mode: screen !important;
}

/* Dark mode: invert colors (white background -> black) on the video/image itself */
[data-theme="dark"] #opportunities-section .split-image-container video,
[data-theme="dark"] #opportunities-section .split-image-container img {
    filter: invert(1) hue-rotate(180deg) !important;
    background: transparent !important;
    transform: translate3d(0, 0, 0); /* Force GPU layers composition */
}

/* Prevent translation hover effects on logo container to keep it merged */
#opportunities-section .split-image-container:hover {
    transform: none !important;
    box-shadow: none !important;
}

#opportunities-section .split-image-container:hover video,
#opportunities-section .split-image-container:hover img {
    transform: none !important;
}




.split-text-container {
    flex: 1;
    background: var(--glass-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    position: relative;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.split-text-container:hover {
    transform: translateY(-6px) scale(1.015);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.split-text-container h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.accent-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
    margin-bottom: 2rem;
}

.split-text-container p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    background: var(--footer-bg);
    color: var(--footer-text);
    margin-top: 4rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

footer p {
    text-align: center;
}

/* Footer bottom layout */
.footer-bottom-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

.footer-bottom-wrapper p.footer-copyright {
    margin: 0;
    text-align: center;
    font-size: 0.95rem;
    color: var(--footer-text);
}

.footer-bottom-wrapper p.footer-designer {
    margin: 0;
    text-align: right;
    font-size: 0.9rem;
    color: var(--footer-text);
    opacity: 0.8;
}

@media (max-width: 768px) {
    .footer-bottom-wrapper {
        display: flex;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    .footer-bottom-wrapper p.footer-copyright, 
    .footer-bottom-wrapper p.footer-designer {
        text-align: center !important;
        width: 100%;
    }
}


/* Theme Toggle Button */
.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle-btn:hover {
    background: var(--border-color);
    transform: scale(1.05) rotate(15deg);
}

.theme-toggle-btn svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    transition: transform 0.5s ease;
}

/* Hide inactive icons based on theme */
[data-theme="dark"] .theme-toggle-btn .sun-icon {
    display: block;
}
[data-theme="dark"] .theme-toggle-btn .moon-icon {
    display: none;
}
:root:not([data-theme="dark"]) .theme-toggle-btn .sun-icon {
    display: none;
}
:root:not([data-theme="dark"]) .theme-toggle-btn .moon-icon {
    display: block;
}

/* Mobile Menu Toggle Button (Hamburger) */
.menu-toggle-btn {
    display: none; /* Hidden on desktop */
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 32px;
    height: 32px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3.5px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.menu-toggle-btn:hover {
    background: var(--border-color);
}

.menu-toggle-btn .hamburger-bar {
    width: 18px;
    height: 2px;
    background-color: currentColor;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Animate Hamburger to "X" when open */
.menu-toggle-btn.open .hamburger-bar:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
}

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

.menu-toggle-btn.open .hamburger-bar:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Responsive Design */
/* Simple Fade-in Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: none;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.3rem 1.5rem;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    z-index: 99999 !important;
    box-shadow: var(--shadow-soft);
    border-bottom: 1px solid var(--navbar-border);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap; /* Prevent brand text wrapping */
}

.navbar-brand img {
    height: 35px !important;
    width: auto;
    object-fit: contain;
    transition: height 0.3s ease;
}

.brand-text {
    background: inherit;
    -webkit-background-clip: inherit;
    -webkit-text-fill-color: inherit;
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: middle;
    transition: max-width 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.03);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    position: relative;
    align-items: center;
    margin-left: auto;
    margin-right: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary); /* Dark slate text */
    font-weight: 600;
    font-size: 0.92rem;
    transition: color 0.3s ease, transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: 0.4rem 0.75rem;
    border-radius: 20px;
    position: relative;
    z-index: 1;
    display: inline-block;
}

.nav-links a:hover {
    color: var(--accent-primary);
    transform: scale(1.08);
}

.nav-links a.active {
    color: var(--accent-primary);
}

/* Sliding Lens */
.nav-lens {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--split-bg);
    border: 1px solid var(--accent-primary);
    border-radius: 20px;
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
                width 0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
                height 0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
                opacity 0.2s ease,
                background-color 0.3s ease,
                border-color 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.12);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Material Design Grid for Themes */
.grid-themes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.card-pop {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
    cursor: pointer;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.card-pop:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.card-pop img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-pop h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    padding: 1.5rem;
    margin: 0;
}

/* Publication Cards */
.pub-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem 0;
    max-width: 900px;
    margin: 0 auto;
}

.pub-card {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pub-card:hover {
    transform: translateX(10px) scale(1.01);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
    border-left: 4px solid var(--accent-primary);
}

.pub-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pub-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease, transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-block;
}

.pub-title a:hover {
    color: var(--accent-primary);
    transform: scale(1.02) translateX(4px);
}

.pub-authors {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pub-journal {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.pub-link {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1.2rem;
    background: var(--accent-primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.3s ease, box-shadow 0.3s ease;
    align-self: flex-start;
    position: relative;
    overflow: hidden;
}

.pub-link:hover {
    background: var(--accent-secondary);
    transform: scale(1.06);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.25);
}

/* Logo Slider */
.logo-slider-section {
    width: 100%;
    height: 150px;
    overflow: hidden;
    position: relative;
    background: var(--logo-slider-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.logo-slider-track {
    display: flex;
    width: max-content;
    height: 80px;
    align-items: center;
    gap: 4rem; /* spacing between logos */
    animation: scrollSlider 20s linear infinite;
    padding-left: 2rem;
}

.logo-slider-track img {
    height: 100%;
    width: auto;
    object-fit: contain;
    filter: grayscale(0%);
    opacity: 1;
    transition: transform 0.3s ease;
}

.logo-slider-track:hover {
    animation-play-state: paused;
}

.logo-slider-track img:hover {
    transform: scale(1.1);
}

/* Facilities Grid */
.facility-category {
    margin: 4rem 0 2rem 0;
    text-align: center;
}

.facility-category h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.facility-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.facility-item {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.facility-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.facility-item img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    background: transparent;
    display: block;
    padding: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.facility-item .facility-caption {
    padding: 1.5rem;
    text-align: center;
}

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

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

/* People Page CSS */
.people-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.person-card {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.person-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.person-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-bottom: 1px solid var(--glass-border);
}

.person-details {
    padding: 1.5rem;
    text-align: center;
}

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

.person-details .role {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.person-details .research-area {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.person-details .email {
    font-size: 0.9rem;
    color: var(--accent-secondary);
    text-decoration: none;
    display: inline-block;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}

.person-details .email:hover {
    color: var(--accent-primary);
    transform: scale(1.06);
}

.members-list {
    list-style-type: disc;
    padding-left: 2rem;
    margin-bottom: 3rem;
}

.members-list li {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}


/* Teaching Page CSS */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.course-card {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-left: 5px solid var(--accent-primary);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.course-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
    border-left-color: var(--accent-secondary);
}

.course-card h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin: 0;
}

/* Teaching & Events Media Grid */
.teaching-media-grid, .events-media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.teaching-media-item, .events-media-item {
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.teaching-media-item:hover, .events-media-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.teaching-media-item img, .events-media-item img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background: transparent;
    display: block;
    border-bottom: 1px solid var(--glass-border);
}

.teaching-media-item video, .events-media-item video {
    width: 100%;
    height: 220px;
    display: block;
    background: #000;
    border-bottom: 1px solid var(--glass-border);
}



/* Gallery Page CSS */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 4rem;
}

.gallery-item {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}


/* Announcement Bar CSS */
.announcement-bar {
    background-color: var(--accent-primary);
    color: white;
    padding: 10px 0;
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    box-shadow: var(--shadow-soft);
    display: flex;
    align-items: center;
}

.announcement-track {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 25s linear infinite;
}

.announcement-track span {
    display: inline-block;
    font-size: 1.05rem;
    margin-right: 100px;
}

.announcement-track a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
    margin: 0 30px;
    display: inline-block;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}

.announcement-track a:hover {
    color: #ffffff;
    transform: scale(1.05);
}

@keyframes marquee {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

.announcement-bar:hover .announcement-track {
    animation-play-state: paused;
}


/* Contact Page CSS */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.contact-info {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.contact-info:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.contact-info h3 {
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.contact-info p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact-info strong {
    color: var(--text-primary);
}

/* Events Page CSS */
.event-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.event-card:hover {
    transform: translateX(10px) scale(1.01);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(59, 130, 246, 0.4);
}

.event-date {
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.event-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Opportunity Section Buttons */
.btn-opportunity {
    display: inline-block;
    padding: 0.6rem 1.4rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2);
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-opportunity:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.35);
}

/* Glassy Shine Glare Swipe Overlay for Interactive Buttons */
.btn-opportunity::after, .pub-link::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.4) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: skewX(-25deg);
    transition: left 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none;
}

.btn-opportunity:hover::after, .pub-link:hover::after {
    left: 130%;
}

/* Contact Info & Social Icons Hover Zoom */
.contact-info a {
    display: inline-block;
    transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}

.contact-info a:hover {
    transform: scale(1.08);
}


/* =========================================================================
   Animated Lab Logo Styling
   ========================================================================= */

/* Opportunities Image: Spinning & Pulsing Glow (Static Image only) */
.split-image-container img[src*="logo_spintronics"] {
    animation: logoSpinPulse 12s linear infinite;
    object-fit: contain !important;
    background: transparent !important;
    padding: 2.5rem;
}

/* Opportunities Video: Layout & Sizing (No CSS rotation/scale animations, no cuts) */
.split-image-container video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain !important;
    background: transparent !important;
    padding: 0;
    transition: none !important;
}

.split-image-container:hover video {
    transform: none !important;
}

/* Slider Image: Logo styling (No cuts, fits box perfectly) */
.slider-track img[src*="logo"] {
    object-fit: contain !important;
    background: transparent !important;
    padding: 1.5rem;
    width: 320px;
}

/* Specific animated logo styling */
.slider-track img[src*="logo_spintronics"] {
    animation: logoBreatheGlow 4s ease-in-out infinite alternate;
}

/* Slider Video: Layout & Sizing (No CSS scaling animation, no cuts) */
.slider-track video {
    display: block;
    height: 100%;
    width: 320px;
    flex-shrink: 0;
    object-fit: contain !important;
    background: transparent !important;
    padding: 0;
}

@keyframes logoSpinPulse {
    0% {
        transform: rotate(0deg) scale(1);
        filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.35));
    }
    50% {
        transform: rotate(180deg) scale(1.02);
        filter: drop-shadow(0 0 25px rgba(14, 165, 233, 0.55));
    }
    100% {
        transform: rotate(360deg) scale(1);
        filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.35));
    }
}

@keyframes logoBreatheGlow {
    0% {
        transform: scale(0.96);
        filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.3));
    }
    100% {
        transform: scale(1.04);
        filter: drop-shadow(0 0 22px rgba(14, 165, 233, 0.6));
    }
}

/* Footer Sponsors */
.footer-sponsors {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-sponsors img {
    height: 38px;
    width: auto;
    object-fit: contain;
    opacity: 0.6;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.footer-sponsors img:hover {
    opacity: 1;
    transform: scale(1.06);
}




@media (max-width: 1100px) {
    .split-section, .split-section.reverse-layout {
        flex-direction: column;
        gap: 2rem;
    }
    
    .split-image-container {
        width: 100%;
    }
    
    .welcome-section h1 {
        font-size: 2.5rem;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .navbar-brand img {
        height: 32px !important;
    }

    .brand-text {
        max-width: 200px;
    }

    .menu-toggle-btn {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 42px;
        left: 0;
        width: 100vw;
        height: 0;
        overflow: hidden;
        background: var(--card-bg) !important;
        border-top: 1px solid transparent;
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 0 2rem;
        gap: 1.5rem;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-20px);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.3s ease, height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
        z-index: 100000 !important;
        margin-left: 0;
        margin-right: 0;
    }
    
    .nav-links.mobile-active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
        height: calc(100vh - 42px);
        padding: 2rem;
        overflow-y: auto;
        border-top: 1px solid var(--navbar-border);
    }
    
    .nav-links a {
        display: block;
        width: auto;
        text-align: center;
        padding: 0.6rem 2rem;
        border-radius: 20px;
        font-size: 1.15rem;
        font-weight: 600;
    }
    
    .nav-links a:hover {
        background: var(--border-color);
        transform: none; /* disable desktop zoom */
    }
    
    .nav-lens {
        display: none !important; /* disable horizontal sliding lens on mobile */
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 1.5rem 1rem 3rem 1rem;
        --border-radius: 16px;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .navbar {
        padding: 0.2rem 1rem;
    }

    .navbar-brand img {
        height: 28px !important;
    }

    .brand-text {
        max-width: 160px;
    }

    .nav-links {
        top: 35px;
    }

    .nav-links.mobile-active {
        height: calc(100vh - 35px);
    }

    .theme-toggle-btn {
        width: 28px;
        height: 28px;
    }
    
    .theme-toggle-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .menu-toggle-btn {
        width: 28px;
        height: 28px;
        gap: 3px;
    }
    
    .menu-toggle-btn .hamburger-bar {
        width: 16px;
        height: 2px;
    }
    
    .menu-toggle-btn.open .hamburger-bar:nth-child(1) {
        transform: translateY(5px) rotate(45deg);
    }
    
    .menu-toggle-btn.open .hamburger-bar:nth-child(3) {
        transform: translateY(-5px) rotate(-45deg);
    }
    
    .welcome-section h1 {
        font-size: 2.2rem;
    }
    
    .split-text-container {
        padding: 1.5rem;
    }
    
    .split-text-container h2 {
        font-size: 1.8rem;
    }
    
    .pub-card {
        padding: 1.25rem;
    }
    
    .pub-title {
        font-size: 1.15rem;
    }
    
    .footer-sponsors {
        gap: 1.5rem;
    }
    
    .footer-sponsors img {
        height: 28px;
    }
    
    .slider-section {
        height: 30vh;
    }
}

@media (max-width: 480px) {
    .welcome-section h1 {
        font-size: 1.8rem;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .navbar-brand img {
        height: 24px !important;
    }

    .brand-text {
        max-width: 130px;
    }

    .nav-links {
        top: 31px;
    }

    .nav-links.mobile-active {
        height: calc(100vh - 31px);
    }
    
    .course-grid, .people-grid, .facility-row, .gallery-grid, .teaching-media-grid, .events-media-grid {
        grid-template-columns: 1fr !important;
    }
    
    .gallery-item {
        height: 220px;
    }
}

@media (max-width: 360px) {
    .navbar-brand {
        font-size: 0.8rem;
    }
    
    .navbar-brand img {
        height: 22px !important;
    }

    .brand-text {
        max-width: 110px;
    }

    .nav-links {
        top: 27px;
    }

    .nav-links.mobile-active {
        height: calc(100vh - 27px);
    }
}

/* Site Unpublished Mode Overlay */
body.site-unpublished {
    overflow: hidden !important;
    height: 100vh !important;
    width: 100vw !important;
}

body.site-unpublished > *:not(.unpublished-overlay) {
    display: none !important;
}

.unpublished-overlay {
    display: none;
}

body.site-unpublished .unpublished-overlay {
    display: flex !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: radial-gradient(circle at 50% 50%, #1e293b, #0f172a) !important;
    z-index: 2147483647 !important;
    justify-content: center;
    align-items: center;
    font-family: 'Inter', sans-serif;
    color: #f1f5f9;
    padding: 2rem;
    box-sizing: border-box;
}

.unpublished-card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 3rem;
    border-radius: 24px;
    max-width: 550px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    animation: offlineFadeIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.unpublished-logo {
    height: 90px;
    width: auto;
    object-fit: contain;
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.3));
    animation: offlineLogoPulse 3s infinite ease-in-out;
}

.unpublished-card h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #3b82f6, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.unpublished-card p {
    font-size: 1.15rem;
    color: #94a3b8;
    line-height: 1.6;
    text-align: center !important;
    margin-bottom: 2rem;
}

.unpublished-accent {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #38bdf8);
    border-radius: 2px;
    margin: 0 auto;
}

@keyframes offlineFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes offlineLogoPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.04);
        filter: drop-shadow(0 0 15px rgba(59, 130, 246, 0.5));
    }
}

/* Glassy Bubble Specular Sheen Overlay */
.facility-item, .person-card, .course-card, .pub-card, .event-card, .contact-info, .teaching-media-item, .events-media-item, .split-text-container, .card-pop {
    position: relative;
    overflow: hidden;
}

.facility-item::before, .person-card::before, .course-card::before, .pub-card::before, .event-card::before, .contact-info::before, .teaching-media-item::before, .events-media-item::before, .split-text-container::before, .card-pop::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 48%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.28) 0%, rgba(255, 255, 255, 0.02) 100%);
    pointer-events: none;
    z-index: 10;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

[data-theme="dark"] .facility-item::before, 
[data-theme="dark"] .person-card::before, 
[data-theme="dark"] .course-card::before, 
[data-theme="dark"] .pub-card::before, 
[data-theme="dark"] .event-card::before, 
[data-theme="dark"] .contact-info::before, 
[data-theme="dark"] .teaching-media-item::before, 
[data-theme="dark"] .events-media-item::before, 
[data-theme="dark"] .split-text-container::before, 
[data-theme="dark"] .card-pop::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.005) 100%);
}

/* Glassy Bubble Iridescent Border Refraction (Rainbow shimmer on hover) */
.facility-item::after, 
.person-card::after, 
.course-card::after, 
.pub-card::after, 
.event-card::after, 
.contact-info::after, 
.teaching-media-item::after, 
.events-media-item::after, 
.split-text-container::after, 
.card-pop::after,
.welcome-tagline::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.5px; /* border thickness */
    background: linear-gradient(120deg, #ff3b30, #ff9500, #ffcc00, #4cd964, #5ac8fa, #0578ff, #5856d6, #ff3b30);
    background-size: 200% 200%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 12;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.facility-item:hover::after, 
.person-card:hover::after, 
.course-card:hover::after, 
.pub-card:hover::after, 
.event-card:hover::after, 
.contact-info:hover::after, 
.teaching-media-item:hover::after, 
.events-media-item:hover::after, 
.split-text-container:hover::after, 
.card-pop:hover::after,
.welcome-tagline:hover::after {
    opacity: 1;
    animation: rainbow-shimmer 2.5s linear infinite;
}

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

/* Member Social Links styling */
.member-links {
    margin-top: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.member-social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(15, 23, 42, 0.06);
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    z-index: 15;
    line-height: 1;
    padding: 0;
}

[data-theme="dark"] .member-social-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.member-social-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    transition: transform 0.3s ease;
    display: block;
    margin: 0;
}

/* Brand colored hover behaviors */
.member-social-btn.btn-email:hover {
    color: #EA4335 !important;
    background: rgba(234, 67, 53, 0.15) !important;
    border-color: rgba(234, 67, 53, 0.3) !important;
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 5px 15px rgba(234, 67, 53, 0.2);
}

.member-social-btn.btn-linkedin:hover {
    color: #0A66C2 !important;
    background: rgba(10, 102, 194, 0.15) !important;
    border-color: rgba(10, 102, 194, 0.3) !important;
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 5px 15px rgba(10, 102, 194, 0.2);
}

.member-social-btn.btn-scholar:hover {
    color: #4285F4 !important;
    background: rgba(66, 133, 244, 0.15) !important;
    border-color: rgba(66, 133, 244, 0.3) !important;
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 5px 15px rgba(66, 133, 244, 0.2);
}

.member-social-btn:hover svg {
    transform: scale(1.1);
}

/* Footer social buttons */
.footer-social-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 0.6rem;
}

.footer-social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.75) !important;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    line-height: 1;
    padding: 0;
    text-decoration: none;
}

[data-theme="dark"] .footer-social-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-social-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: transform 0.3s ease;
    display: block;
    margin: 0;
}

.footer-social-btn.btn-email:hover {
    color: #ffffff !important;
    background: #EA4335 !important;
    border-color: #EA4335 !important;
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 4px 14px rgba(234, 67, 53, 0.4);
}

.footer-social-btn.btn-linkedin:hover {
    color: #ffffff !important;
    background: #0A66C2 !important;
    border-color: #0A66C2 !important;
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 4px 14px rgba(10, 102, 194, 0.4);
}

.footer-social-btn:hover svg {
    transform: scale(1.1);
}