:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --text-secondary: #6e6e6e;
    --accent-color: #000000;
    --border-color: #f0f0f0;
    --font-main: 'Inter', sans-serif;
    --sidebar-width: 320px;
    --content-max-width: 800px;
    --spacing-base: 8px;
    --project-card-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f0f0f;
        --text-color: #ededed;
        --text-secondary: #888888;
        --accent-color: #ffffff;
        --border-color: #2a2a2a;
        --project-card-bg: #161616;
    }
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.layout-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

@media (min-width: 850px) {
    .layout-wrapper {
        flex-direction: row;
        /* max-width removed to allow full width for scrollable rows */
        width: 100%;
    }

    .sidebar {
        width: var(--sidebar-width);
        height: 100vh;
        position: sticky;
        top: 0;
        flex-shrink: 0;
        padding: calc(var(--spacing-base) * 6);
        display: flex;
        flex-direction: column;
        border-right: 1px solid var(--border-color);
    }

    .content {
        flex-grow: 1;
        padding: calc(var(--spacing-base) * 6) calc(var(--spacing-base) * 8);
        /* Max-width removed from container, applied to children instead */
        min-width: 0;
        /* Prevents flex item from overflowing unintentionally */
    }

    /* Re-apply textual constraints */
    .section-title,
    .group-title,
    .footer {
        max-width: var(--content-max-width);
    }
}

@media (max-width: 849px) {
    .sidebar {
        padding: calc(var(--spacing-base) * 4);
        border-bottom: 1px solid var(--border-color);
    }

    .content {
        padding: calc(var(--spacing-base) * 4);
    }
}

/* Sidebar Profile */
.profile-header {
    margin-bottom: calc(var(--spacing-base) * 4);
}

.profile-pic {
    width: 128px;
    height: 128px;
    border-radius: 20%;
    margin-bottom: calc(var(--spacing-base) * 2);
    object-fit: cover;
}

h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: calc(var(--spacing-base) * 0.5);
}

.role {
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-base) * 1.5);
    font-weight: 500;
}

.bio {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Navigation */
.sidebar-nav {
    margin-top: calc(var(--spacing-base) * 4);
    margin-bottom: auto;
    /* Pushes social links down */
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: calc(var(--spacing-base) * 1.5);
}

.sidebar-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--text-color);
    font-weight: 500;
}

/* Social Links */
.social-links {
    margin-top: calc(var(--spacing-base) * 4);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-base) * 1);
}

.social-links a {
    color: var(--text-secondary);
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

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

.social-icon {
    width: 18px;
    height: 18px;
    object-fit: contain;
}

/* Main Content Sections */
.section {
    margin-bottom: calc(var(--spacing-base) * 10);
}

.section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing-base) * 2);
    font-weight: 600;
}

.about-text p {
    margin-bottom: calc(var(--spacing-base) * 2);
    font-size: 1.05rem;
    color: var(--text-color);
}

/* Work Groups */
.work-group {
    margin-bottom: calc(var(--spacing-base) * 4);
}

.work-group:last-child {
    margin-bottom: 0;
}

.group-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing-base) * 2);
    color: var(--text-color);
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.group-date {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Project List (Grid style) */
.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: calc(var(--spacing-base) * 4);
}

/* Horizontal Scroll Variant */
.project-list.scrollable-row {
    display: flex;
    overflow-x: auto;
    flex-wrap: nowrap;
    grid-template-columns: none;
    gap: calc(var(--spacing-base) * 2);
    padding-bottom: calc(var(--spacing-base) * 2);
    /* Smooth scrolling feel */
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    /* Ensure right padding so last item isn't flush */
    padding-right: calc(var(--spacing-base) * 4);
    scrollbar-width: thin;

    /* Make it fill the remaining screen space */
    margin-right: calc(var(--spacing-base) * -4);
    /* Tablet padding offset */
    margin-left: calc(var(--spacing-base) * -4);
    /* Left bleed */
}

/* Spacer for initial left alignment */
.project-list.scrollable-row::before {
    content: '';
    display: block;
    flex-shrink: 0;
    /* Target padding (4 units) - Gap (2 units) = 2 units */
    width: calc(var(--spacing-base) * 2);
}

/* Spacer for final right padding is handled by container padding-right */

@media (min-width: 600px) {
    .project-list.scrollable-row .project-item {
        flex: 0 0 300px;
        width: 300px;
    }

    .project-list.scrollable-row {
        gap: calc(var(--spacing-base) * 3);
    }

    /* Adjust spacer because gap increased to 3 units, but padding target is still 4 units */
    .project-list.scrollable-row::before {
        width: calc(var(--spacing-base) * 1);
    }
}

@media (min-width: 850px) {
    .project-list.scrollable-row {
        margin-right: calc(var(--spacing-base) * -8);
        /* Desktop padding offset */
        padding-right: calc(var(--spacing-base) * 8);
        /* Add space back so cards don't hit edge abruptly */

        margin-left: calc(var(--spacing-base) * -8);
    }

    /* Target padding (8 units) - Gap (3 units) = 5 units */
    .project-list.scrollable-row::before {
        width: calc(var(--spacing-base) * 5);
    }
}

.project-list.scrollable-row::-webkit-scrollbar {
    height: 6px;
}

.project-list.scrollable-row::-webkit-scrollbar-track {
    background: transparent;
}

.project-list.scrollable-row::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 20px;
}

.project-list.scrollable-row .project-item {
    flex: 0 0 260px;
    scroll-snap-align: start;
    width: 260px;
}

@media (min-width: 600px) {
    .project-list.scrollable-row .project-item {
        flex: 0 0 300px;
        width: 300px;
    }

    .project-list.scrollable-row {
        gap: calc(var(--spacing-base) * 3);
    }
}

.project-item {
    display: flex;
    flex-direction: column;
    background-color: var(--project-card-bg);
    padding: 0;
    /* Removed padding for full-bleed image */
    border-radius: 12px;
    border: 1px solid transparent;
    overflow: hidden;
    /* Clips the image corners */
}

.project-hero,
.project-hero-placeholder {
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: 0;
    /* Reset radius so it fits the card corners */
    margin-bottom: calc(var(--spacing-base) * 2);
    display: block;
    object-fit: cover;
}

/* Re-apply padding to text content */
.project-details {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding-bottom: calc(var(--spacing-base) * 2);
}

.project-details>*:not(.project-hero):not(.project-hero-placeholder) {
    padding-left: calc(var(--spacing-base) * 1.5);
    padding-right: calc(var(--spacing-base) * 1.5);
}

.project-hero-placeholder {
    background-color: var(--border-color);
}



.project-details h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-base) * 0.5);
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-details p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing-base));
}

.project-details .citation-text {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing-base));
}

.project-details .citation-text em {
    font-style: italic;
    color: var(--text-color);
}

.project-details ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: calc(var(--spacing-base));
    color: var(--text-secondary);
}

.project-details li {
    font-size: 0.85rem;
    margin-bottom: 4px;
    padding-left: 4px;
}

.featured-note {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-base) * 1.5);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background-color: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 8px;
    width: fit-content;
}

.project-footer {
    margin-top: auto;
    padding-top: calc(var(--spacing-base) * 1);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.media-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

.media-pill .media-icon {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    object-fit: contain;
}

.media-pill:hover {
    border-color: var(--text-secondary);
    background-color: var(--border-color);
    text-decoration: none;
}

/* Brand specific pills */
.media-pill.verge {
    background-color: rgba(225, 0, 162, 0.08);
    /* The Verge pink/purple tint */
    color: #ce0092;
    border-color: rgba(225, 0, 162, 0.2);
}

.media-pill.verge:hover {
    background-color: rgba(225, 0, 162, 0.15);
    border-color: rgba(225, 0, 162, 0.4);
}

.media-pill.hackernoon {
    background-color: rgba(0, 255, 0, 0.08);
    color: #00aa00;
    border-color: rgba(0, 255, 0, 0.2);
}

.media-pill.hackernoon:hover {
    background-color: rgba(0, 255, 0, 0.15);
    border-color: rgba(0, 255, 0, 0.4);
}

.media-pill.icrai {
    background-color: rgba(0, 122, 255, 0.08);
    color: #007aff;
    border-color: rgba(0, 122, 255, 0.2);
}

.media-pill.icrai:hover {
    background-color: rgba(0, 122, 255, 0.15);
    border-color: rgba(0, 122, 255, 0.4);
}

.media-pill.youtube {
    background-color: rgba(255, 0, 0, 0.08);
    color: #ff0000;
    border-color: rgba(255, 0, 0, 0.2);
}

.media-pill.youtube:hover {
    background-color: rgba(255, 0, 0, 0.15);
    border-color: rgba(255, 0, 0, 0.4);
}

.media-pill.techcrunch {
    background-color: rgba(0, 200, 0, 0.08);
    color: #009900;
    border-color: rgba(0, 200, 0, 0.2);
}

.media-pill.techcrunch:hover {
    background-color: rgba(0, 200, 0, 0.15);
    border-color: rgba(0, 200, 0, 0.4);
}

.project-link-icon {
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease, transform 0.2s ease;
    opacity: 0.6;
}

.project-link-icon:hover {
    color: var(--text-color);
    transform: scale(1.1);
    opacity: 1;
}

/* Footer (in main content) */
.footer {
    padding-top: calc(var(--spacing-base) * 8);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

a {
    color: var(--text-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}