/* ── Full-Bleed Section Canvas & Tactical Grid Texture ─────────────────── */
.projects-main {
    width: 100%;
    min-height: calc(100vh - 12rem);
    background-color: var(--surface-depth-base);
    background-image: 
        linear-gradient(to right, color-mix(in srgb, var(--color-border) 25%, transparent) 1px, transparent 1px),
        linear-gradient(to bottom, color-mix(in srgb, var(--color-border) 25%, transparent) 1px, transparent 1px);
    background-size: 40px 40px;
    padding-top: clamp(2rem, 4vh, 3.5rem);
    padding-bottom: 5rem;
}

.projects-page-shell {
    width: min(100% - (2 * var(--page-padding, 1.25rem)), 78rem);
    margin-inline: auto;
}

/* ── Page Hero Header (Spacious About Spacing) ───────────── */
.projects-hero {
    padding-top: clamp(4.5rem, 9vh, 8rem);
    padding-bottom: 0;
}

.page-hero__header {
    max-width: 44rem;
    margin-bottom: clamp(3rem, 6vh, 5.5rem);
}

.page-hero__eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-accent-bright);
    margin-bottom: 0.75rem;
}

.page-hero__title {
    font-size: clamp(3.25rem, 7vw, 4.5rem);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.025em;
    color: var(--color-text);
    margin: 0 0 1.25rem 0;
}

.page-hero__lead {
    font-size: clamp(1.2rem, 2.5vw, 1.45rem);
    color: var(--color-text-muted);
    line-height: 1.45;
    margin: 0;
}

.projects-stat-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.25rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid color-mix(in srgb, var(--color-border) 60%, transparent);
}

.projects-stat-badge {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stat-badge-num {
    font-weight: 700;
    color: var(--color-accent-bright);
}

.projects-stat-badge--active {
    color: var(--color-accent-bright);
    font-weight: 600;
}

.stat-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent-bright);
    box-shadow: 0 0 8px var(--color-accent-bright);
}

/* --------------------------------------------------------------------------
   Filter & Controls Bar
   -------------------------------------------------------------------------- */
.projects-controls {
    display: grid;
    gap: 1.25rem;
    margin-top: 1.75rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.projects-search-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.projects-search-field {
    position: relative;
    flex: 1;
    min-width: 16rem;
    max-width: 32rem;
}

.projects-search-field input {
    width: 100%;
    padding: 0.65rem 0.9rem;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    color: var(--color-text);
    background: color-mix(in srgb, var(--color-bg-secondary) 60%, var(--color-surface) 40%);
    border: 1px solid var(--border);
    border-radius: 2px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.projects-search-field input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.projects-sort-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.projects-sort-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.projects-sort-select {
    padding: 0.55rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-text);
    background: color-mix(in srgb, var(--color-bg-secondary) 70%, transparent);
    border: 1px solid var(--border);
    border-radius: 2px;
    cursor: pointer;
    outline: none;
}

.projects-sort-select:focus {
    border-color: var(--color-accent);
}

/* Filter Groups (Domain & Focus) */
.projects-filter-groups {
    display: grid;
    gap: 1rem;
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem 0.6rem;
}

.filter-group__title {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-right: 0.4rem;
    min-width: 4rem;
}

.filter-btn {
    padding: 0.35rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 2px;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
    text-decoration: none;
}

.filter-btn:hover {
    color: var(--color-text);
    border-color: color-mix(in srgb, var(--border) 80%, var(--color-accent) 20%);
}

.filter-btn[aria-pressed="true"] {
    color: var(--color-accent-bright, var(--color-accent));
    background: color-mix(in srgb, var(--color-accent-deep) 15%, transparent);
    border-color: var(--color-accent);
    font-weight: 600;
}

/* Status Bar & Results Counter */
.projects-status-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.5rem;
}

.result-count {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: var(--muted);
    text-transform: uppercase;
}

.clear-filters-btn {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-accent);
    background: transparent;
    border: none;
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
}

.clear-filters-btn:hover {
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Marketplace Project Card Gallery Grid
   -------------------------------------------------------------------------- */
.project-gallery {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    padding-top: 0.75rem;
    padding-bottom: 1.5rem;
}

@media (max-width: 1280px) {
    .project-gallery {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .project-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .project-gallery {
        grid-template-columns: 1fr;
    }
}

/* Individual Project Card Structure */
.project-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    background: var(--surface-depth-card);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 300ms cubic-bezier(0.16, 1, 0.3, 1), border-color 300ms ease, background-color 300ms ease;
}

/* Animated Perimeter Trace Effect on Hover */
.project-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 2px;
    padding: 1px;
    background: conic-gradient(
        from 0deg,
        transparent 0%,
        var(--color-accent) 25%,
        transparent 50%,
        var(--color-accent-bright, var(--color-accent)) 75%,
        transparent 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    animation: perimeter-rotate 4s linear infinite;
}

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

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-bright);
    background: color-mix(in srgb, var(--surface-depth-card) 90%, var(--color-accent-deep) 10%);
    box-shadow: 0 8px 24px -4px color-mix(in srgb, var(--color-accent-bright) 35%, transparent),
                0 12px 24px -6px rgba(0, 0, 0, 0.45);
    position: relative;
    z-index: 10;
}

.project-card:hover::before {
    opacity: 1;
}

.project-card:focus-within {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Card Visual / Media */
.project-card__media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--color-accent-deep) 22%, transparent), color-mix(in srgb, var(--color-bg-secondary) 85%, transparent)),
        repeating-linear-gradient(
            135deg,
            color-mix(in srgb, var(--color-text) 6%, transparent) 0,
            color-mix(in srgb, var(--color-text) 6%, transparent) 1px,
            transparent 1px,
            transparent 10px
        );
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-card__media-placeholder {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted);
    text-align: center;
    padding: 1rem;
    line-height: 1.4;
}

.project-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.project-card:hover .project-card__media img {
    transform: scale(1.04);
}

/* Card Content Area */
.project-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.15rem;
    gap: 0.65rem;
}

.project-card__domain {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin: 0;
}

.project-card__title {
    margin: 0;
    font-size: 1.2rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.project-card__provenance {
    margin: 0;
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.4;
}

.project-card__provenance a {
    color: var(--color-accent);
    text-decoration: none;
}

.project-card__provenance a:hover {
    text-decoration: underline;
}

.project-card__summary {
    margin: 0;
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card__fact-group {
    display: grid;
    gap: 0.35rem;
    margin-top: auto;
    padding-top: 0.65rem;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
}

.project-card__fact {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.project-card__fact-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
}

.project-card__fact-value {
    color: var(--color-text);
    font-weight: 500;
    text-align: right;
}

.project-card__evidence {
    margin: 0;
    font-size: 0.82rem;
    color: var(--color-text);
    line-height: 1.45;
}

.project-card__evidence strong {
    color: var(--color-accent);
    font-weight: 600;
}

.project-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: 0.5rem;
    padding-top: 0.65rem;
    border-top: 1px solid var(--border);
}

.project-card__action-link {
    font-family: var(--font-mono);
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--color-accent);
    text-decoration: none;
}

.project-card__action-link:hover {
    text-decoration: underline;
}

.project-card__action-pending {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--muted);
    font-style: italic;
}

.project-card__external-links {
    display: flex;
    gap: 0.6rem;
}

.project-card__external-link {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted);
    text-decoration: none;
}

.project-card__external-link:hover {
    color: var(--color-text);
}

/* Empty Results State */
.projects-empty-state {
    padding: 3rem 1.5rem;
    text-align: center;
    border: 1px dashed var(--border);
    background: color-mix(in srgb, var(--color-bg-secondary) 40%, transparent);
}

.projects-empty-state h3 {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    color: var(--color-text);
}

.projects-empty-state p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   Accessibility: Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .project-card {
        transition: none !important;
    }

    .project-card:hover {
        transform: none !important;
    }

    .project-card::before {
        display: none !important;
    }

    .project-card:hover .project-card__media img {
        transform: none !important;
    }
}