:root {
    --rhino-bg: #1c1c1c;
    --rhino-panel: #2d2d2d;
    --rhino-text: #e0e0e0;
    --rhino-accent: #fcee0a;
    --rhino-grid: #3a3a3a;
    --rhino-cyan: #00ffff;
    --rhino-magenta: #ff00ff;
    --nav-height: 85px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Fira Code', monospace;
    background-color: var(--rhino-bg);
    color: var(--rhino-text);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: var(--nav-height);
}

/* Navigation & UI */
.command-line {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background: var(--rhino-panel);
    border-bottom: 1px solid #555;
    padding: 0 20px;
    z-index: 1000;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
}

.command-line span {
    color: var(--rhino-accent);
    margin-right: 10px;
    font-weight: bold;
}

.rhino-toolbar {
    position: fixed;
    top: 40px;
    left: 0;
    width: 100%;
    height: 45px;
    background: #333;
    border-bottom: 1px solid #555;
    z-index: 999;
    display: flex;
    align-items: center;
    padding: 0 10px;
    overflow-x: auto;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #444;
    color: white;
    text-decoration: none;
    padding: 6px 15px;
    margin-right: 4px;
    font-size: 0.8rem;
    border: 1px solid #555;
    border-radius: 2px;
    transition: all 0.2s;
    white-space: nowrap;
}

.nav-btn:hover,
.nav-btn.active {
    background: var(--rhino-accent);
    color: #000;
    border-color: var(--rhino-accent);
    font-weight: 600;
}

.nav-separator {
    width: 1px;
    height: 25px;
    background: #666;
    margin: 0 10px;
}

/* Layout */
section {
    min-height: 90vh;
    padding: 60px 5vw;
    border-bottom: 1px solid var(--rhino-grid);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-image: linear-gradient(var(--rhino-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--rhino-grid) 1px, transparent 1px);
    background-size: 40px 40px;
    content-visibility: auto;
    contain-intrinsic-size: 1px 900px;
}

h1,
h2,
h3 {
    font-weight: 600;
    text-transform: uppercase;
}

h2 {
    color: var(--rhino-accent);
    margin-bottom: 30px;
    font-size: 2rem;
    border-left: 5px solid var(--rhino-cyan);
    padding-left: 15px;
}

/* Content Styles */
.hero-content {
    text-align: center;
    background: rgba(28, 28, 28, 0.9);
    padding: 40px;
    border: 1px solid #555;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 10px 10px 0px var(--rhino-panel);
}

.profile-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--rhino-accent);
    margin-bottom: 20px;
}

.contact-links {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px dashed #555;
}

.contact-links a {
    color: var(--rhino-text);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
    transition: all 0.3s ease;
    padding: 5px 10px;
}

.contact-links a:hover {
    color: #000;
    background-color: var(--rhino-accent);
    text-decoration: none;
    box-shadow: 0 0 10px var(--rhino-accent);
}

.timeline-item {
    background: rgba(45, 45, 45, 0.8);
    padding: 20px;
    margin-bottom: 20px;
    border-left: 3px solid var(--rhino-accent);
    transition: transform 0.3s;
}

.timeline-item:hover {
    transform: translateX(10px);
    border-color: var(--rhino-cyan);
}

.year {
    color: var(--rhino-cyan);
    font-weight: bold;
}

.research-item {
    border-left-color: var(--rhino-magenta);
    background: linear-gradient(90deg, rgba(50, 40, 50, 0.9), rgba(45, 45, 45, 0.4));
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
    margin-bottom: 40px;
}

.skill-row {
    background: var(--rhino-panel);
    border: 1px solid #444;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s;
}

.skill-row:hover {
    border-color: var(--rhino-accent);
}

.skill-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.skill-dots {
    display: flex;
    gap: 4px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #444;
}

.dot.filled {
    background-color: var(--rhino-accent);
    box-shadow: 0 0 4px rgba(252, 238, 10, 0.4);
}

.skill-value {
    font-size: 0.85rem;
    color: var(--rhino-cyan);
    font-weight: 600;
    text-transform: uppercase;
}

/* Projects */
.project-details {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    background: rgba(0, 0, 0, 0.7);
    padding: 30px;
    border: 1px solid #555;
    align-items: start;
}

.detail-list p {
    margin-bottom: 10px;
}

.detail-list strong {
    color: var(--rhino-accent);
}

/* Galleries (Optimized) */
.gallery,
.horizontal-gallery,
.poster-gallery,
.hermes-gallery,
.mockup-gallery-grid {
    contain: content;
}

.gallery img,
.horizontal-gallery img,
.poster-gallery img,
.hermes-gallery img,
.mockup-gallery-grid img {
    width: 100%;
    object-fit: cover;
    border: 1px solid #555;
    cursor: pointer;
    transform: translateZ(0);
    backface-visibility: hidden;
    transition: opacity 0.2s ease;
    will-change: opacity;
}

.gallery img {
    height: 150px;
}

.gallery img:hover {
    border-color: var(--rhino-accent);
    opacity: 0.8;
}

.horizontal-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.horizontal-gallery img {
    height: auto;
    aspect-ratio: 297/210;
}

.horizontal-gallery img:hover {
    border-color: var(--rhino-accent);
    opacity: 0.8;
    z-index: 10;
}

.poster-gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.poster-gallery img {
    width: auto;
    height: 200px;
    aspect-ratio: 210/297;
}

.poster-gallery img:hover {
    border-color: var(--rhino-accent);
    opacity: 0.8;
}

.hermes-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
    margin-top: 20px;
}

.hermes-gallery img {
    height: 70px;
    opacity: 0.8;
}

.hermes-gallery img:hover {
    opacity: 1;
    z-index: 100;
    box-shadow: 0 0 15px rgba(170, 0, 255, 0.5);
    border-color: #aa00ff;
}

/* Buttons & Video */
.mockup-button,
.panorama-button,
.video-button {
    display: inline-block;
    padding: 12px 25px;
    margin-top: 30px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.2s ease;
    cursor: pointer;
    text-transform: uppercase;
}

.mockup-button {
    background: var(--rhino-cyan);
    color: #000;
    border: 1px solid var(--rhino-cyan);
}

.mockup-button:hover {
    background: #000;
    color: var(--rhino-cyan);
}

.panorama-button {
    background: var(--rhino-magenta);
    color: #fff;
    border: 1px solid var(--rhino-magenta);
}

.panorama-button:hover {
    background: #000;
    color: var(--rhino-magenta);
}

.sidebar-video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    background-color: #000;
    border: 1px solid var(--rhino-accent);
}

.sidebar-video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.sidebar-video-container:hover {
    border-color: var(--rhino-magenta);
    box-shadow: 0 0 15px rgba(170, 0, 255, 0.3);
}

/* --- MAIN LIGHTBOX (FIXED) --- */
#lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    background: rgba(0, 0, 0, 0.95);
    user-select: none;
}

/* Wrapper to handle drag area vs background click */
#lightbox-content {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    pointer-events: none;
    /* Let clicks pass through to #lightbox */
}

#lightbox-img {
    max-width: 90%;
    max-height: 90%;
    border: 2px solid var(--rhino-accent);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
    transition: transform 0.1s ease-out;
    cursor: zoom-in;
    pointer-events: auto;
    /* Re-enable clicks on image */
}

#close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    z-index: 3001;
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--rhino-accent);
    font-size: 2.5rem;
    cursor: pointer;
    z-index: 3002;
    padding: 20px;
    transition: color 0.2s;
}

.nav-arrow:hover {
    color: #fff;
    text-shadow: 0 0 10px var(--rhino-accent);
}

#lightbox-nav-left {
    left: 20px;
}

#lightbox-nav-right {
    right: 20px;
}

/* Mockup Modals */
#mockup-lightbox,
#hermes-mockup-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.98);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.mockup-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 90%;
    max-height: 90%;
    overflow-y: auto;
    padding: 20px;
    background: rgba(28, 28, 28, 0.5);
    border: 1px solid #555;
}

.mockup-gallery-grid img {
    width: 100%;
    height: 180px;
}

#mockup-close-btn,
#hermes-mockup-close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    z-index: 2002;
}

/* Panorama */
#panorama-gallery-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.98);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2500;
}

#panorama-close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    z-index: 2502;
}

.panorama-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 150px;
    background: var(--rhino-panel);
    border: 1px solid #666;
    cursor: pointer;
    transition: border-color 0.2s;
    padding: 10px;
    text-align: center;
}

.panorama-item:hover {
    border-color: var(--rhino-magenta);
    background-color: rgba(255, 0, 255, 0.1);
}

.panorama-item p {
    color: var(--rhino-magenta);
    font-weight: bold;
    margin-top: 5px;
    font-size: 0.9rem;
}

#panorama-viewer-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: none;
    z-index: 3500;
}

#panorama-360-view {
    width: 100%;
    height: 100%;
}

#panorama-viewer-close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    color: white;
    font-size: 3rem;
    z-index: 3501;
    cursor: pointer;
}

#panorama-viewer-close-btn:hover {
    color: var(--rhino-magenta);
}

/* Misc */
.viewport-label {
    position: absolute;
    top: 20px;
    left: 20px;
    background: #000;
    padding: 2px 8px;
    font-size: 0.8rem;
    color: var(--rhino-cyan);
    border: 1px solid var(--rhino-cyan);
    pointer-events: none;
}

.hidden {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s ease, transform 1s ease;
}

.show {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .project-details {
        grid-template-columns: 1fr;
    }

    .poster-gallery {
        justify-content: center;
    }

    #mockup-lightbox .mockup-gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

/* --- Utility / Tidy Classes (Moved from Inline) --- */
.role-text {
    color: var(--rhino-cyan);
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}

.bio-quote {
    border-left: 2px solid var(--rhino-accent);
    padding-left: 15px;
    margin: 20px 0;
    text-align: left;
    font-style: italic;
    color: #ccc;
}

.highlight-white {
    color: white;
    font-weight: bold;
}

.mb-10 {
    margin-bottom: 10px;
}

.gpa-text {
    font-size: 0.9rem;
    opacity: 0.7;
    color: var(--rhino-cyan);
    margin-top: 5px;
}

.job-details {
    margin-top: 10px;
    border-top: 1px dashed #555;
    padding-top: 10px;
}

.text-magenta {
    color: var(--rhino-magenta);
}

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

.border-pink {
    border-color: #ff0055 !important;
}

.border-green {
    border-color: #00ff80 !important;
}

.border-orange {
    border-color: #ff9900 !important;
}

.border-purple {
    border-color: #aa00ff !important;
}

.opacity-70 {
    opacity: 0.7;
}

.cursor-crosshair {
    cursor: crosshair;
}

.bg-black-labeled {
    color: var(--rhino-magenta);
    margin-bottom: 20px;
    text-transform: uppercase;
    background: #000;
    display: inline-block;
    padding: 5px 15px;
    border: 1px solid var(--rhino-magenta);
}

.border-magenta {
    border-color: var(--rhino-magenta) !important;
}

.text-grey-3x {
    color: #888;
}

.mt-20 {
    margin-top: 20px;
}

.project-header h2 {
    border-bottom: none;
}

/* Animation Utility */
@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.blink-cursor {
    animation: blink 1s infinite;
}