/* =========================================================
   TECHPULSE — COMPONENTS
   "Signal Observatory" visual language

   Cards · lists · badges · tables · filters · states

   Surface vocabulary:
     .stat-card, .panel      -> glass reading surfaces
     .filter-button, chips   -> clay interactive controls
     .severity-*             -> semantic data color system
   ========================================================= */


/* =========================================================
   STAT CARDS — clay tiles with luminous values
   ========================================================= */

.stats-grid {
    display: grid;

    grid-template-columns: repeat(5, minmax(0, 1fr));

    gap: 16px;
}

.stat-card {
    position: relative;

    display: flex;

    flex-direction: column;

    padding: 24px 22px 20px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 44%
        ),
        var(--surface);

    box-shadow: var(--clay-shadow);

    overflow: hidden;

    transition:
        transform var(--dur-med) var(--ease),
        box-shadow var(--dur-med) var(--ease),
        border-color var(--dur-med) var(--ease);
}

/* Ambient corner glow */
.stat-card::before {
    content: '';

    position: absolute;

    top: -46px;
    right: -46px;

    width: 130px;
    height: 130px;

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            var(--accent-soft),
            transparent 70%
        );

    opacity: 0;

    transition: opacity var(--dur-med) var(--ease);

    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-4px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--clay-shadow-hover);
}

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

.stat-label {
    margin-bottom: 12px;

    color: var(--text-muted);

    font-size: 10px;
    font-weight: 500;

    letter-spacing: 0.15em;
    line-height: 1;
    text-transform: uppercase;
}

.stat-value {
    font-family: var(--font-display);

    font-size: clamp(30px, 2.6vw, 38px);
    font-weight: 700;

    line-height: 1;

    letter-spacing: -0.02em;

    color: var(--text);

    font-variant-numeric: tabular-nums;

    margin-bottom: 10px;
}

.stat-detail {
    color: var(--text-muted);

    font-size: 12px;
    line-height: 1.45;
}

@media (max-width: 1080px) {

    .stats-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

}

@media (max-width: 640px) {

    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));

        gap: 12px;
    }

    .stat-card {
        padding: 20px 18px 16px;
    }

}

@media (max-width: 420px) {

    .stats-grid {
        grid-template-columns: minmax(0, 1fr);
    }

}


/* =========================================================
   PANELS — primary glass reading surfaces
   ========================================================= */

.panel {
    position: relative;

    padding: 30px 30px 26px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            168deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 40%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));

    box-shadow: var(--shadow-lg);

    overflow: hidden;
}

/* Hairline light catch along the top edge */
.panel::before {
    content: '';

    position: absolute;

    top: 0;
    left: 12%;
    right: 12%;

    height: 1px;

    background:
        linear-gradient(
            90deg,
            transparent,
            var(--glass-highlight-strong),
            transparent
        );

    pointer-events: none;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: 20px;

    margin-bottom: 24px;
}

.panel-header h2 {
    font-family: var(--font-display);

    font-size: 22px;
    font-weight: 700;

    letter-spacing: -0.02em;

    margin-bottom: 0;
}

.panel-header .section-kicker {
    margin-bottom: 8px;
}

.panel-header a {
    color: var(--text-muted);

    font-size: 13px;
    font-weight: 600;

    white-space: nowrap;

    transition: color var(--transition);
}

.panel-header a:hover {
    color: var(--accent);
}

@media (max-width: 640px) {

    .panel {
        padding: 22px 20px 18px;
    }

}


/* =========================================================
   SEVERITY SYSTEM — semantic data colors
   ========================================================= */

.severity {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-width: 86px;

    padding: 5px 12px;

    border: 1px solid var(--border);
    border-radius: var(--radius-pill);

    background: var(--surface-soft);

    color: var(--text-soft);

    font-size: 10px;
    font-weight: 500;

    letter-spacing: 0.09em;
    line-height: 1.2;
    text-transform: uppercase;

    white-space: nowrap;
}

.severity.critical {
    border-color: color-mix(in srgb, var(--sev-critical) 42%, transparent);
    background: color-mix(in srgb, var(--sev-critical) 10%, transparent);
    color: var(--sev-critical);

    box-shadow:
        0 0 16px -6px
        color-mix(in srgb, var(--sev-critical) 55%, transparent);
}

.severity.high {
    border-color: color-mix(in srgb, var(--sev-high) 40%, transparent);
    background: color-mix(in srgb, var(--sev-high) 10%, transparent);
    color: var(--sev-high);
}

.severity.medium {
    border-color: color-mix(in srgb, var(--sev-medium) 40%, transparent);
    background: color-mix(in srgb, var(--sev-medium) 10%, transparent);
    color: var(--sev-medium);
}

.severity.low {
    border-color: color-mix(in srgb, var(--sev-low) 40%, transparent);
    background: color-mix(in srgb, var(--sev-low) 10%, transparent);
    color: var(--sev-low);
}

.severity.none {
    color: var(--sev-none);
}

.severity.unscored {
    border-style: dashed;
    color: var(--sev-unscored);
}


/* Severity overview tiles */
.severity-grid {
    display: grid;

    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 12px;

    margin-bottom: 24px;
}

.severity-grid > div {
    padding: 16px 16px 14px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background: var(--surface-soft);

    box-shadow: var(--shadow-sm);

    transition:
        border-color var(--transition),
        transform var(--transition);
}

.severity-grid > div:hover {
    transform: translateY(-2px);
}

.severity-grid span {
    display: block;

    margin-bottom: 6px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.13em;
}

.severity-grid strong {
    font-family: var(--font-display);

    font-size: 26px;
    font-weight: 700;

    line-height: 1;

    letter-spacing: -0.02em;

    font-variant-numeric: tabular-nums;
}

.severity-grid > div[data-tone="critical"] strong {
    color: var(--sev-critical);
}

.severity-grid > div[data-tone="high"] strong {
    color: var(--sev-high);
}

.severity-grid > div[data-tone="medium"] strong {
    color: var(--sev-medium);
}

.severity-grid > div[data-tone="critical"]:hover {
    border-color: color-mix(in srgb, var(--sev-critical) 40%, transparent);
}

.severity-grid > div[data-tone="high"]:hover {
    border-color: color-mix(in srgb, var(--sev-high) 40%, transparent);
}

.severity-grid > div[data-tone="medium"]:hover {
    border-color: color-mix(in srgb, var(--sev-medium) 40%, transparent);
}


/* Severity distribution meters */
.severity-bars {
    display: flex;

    flex-direction: column;

    gap: 12px;

    margin-bottom: 26px;
}

.severity-bar {
    display: grid;

    grid-template-columns: 76px minmax(0, 1fr) 44px;

    align-items: center;

    gap: 14px;
}

.severity-bar > span:first-child {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.severity-bar-track {
    position: relative;

    display: block;

    height: 6px;

    border-radius: var(--radius-pill);

    background: var(--surface-raised);

    box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.25) inset;

    overflow: hidden;
}

.severity-bar-fill {
    position: absolute;

    inset: 0 auto 0 0;

    display: block;

    width: 0;

    border-radius: inherit;

    transition: width 900ms var(--ease-out);
}

.severity-bar[data-severity-bar="critical"] .severity-bar-fill {
    background:
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--sev-critical) 55%, transparent),
            var(--sev-critical)
        );

    box-shadow: 0 0 12px -2px var(--sev-critical);
}

.severity-bar[data-severity-bar="high"] .severity-bar-fill {
    background:
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--sev-high) 55%, transparent),
            var(--sev-high)
        );
}

.severity-bar[data-severity-bar="medium"] .severity-bar-fill {
    background:
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--sev-medium) 55%, transparent),
            var(--sev-medium)
        );
}

.severity-bar[data-severity-bar="low"] .severity-bar-fill {
    background:
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--sev-low) 55%, transparent),
            var(--sev-low)
        );
}

.severity-bar[data-severity-bar="unscored"] .severity-bar-fill {
    background:
        linear-gradient(
            90deg,
            color-mix(in srgb, var(--sev-unscored) 45%, transparent),
            var(--sev-unscored)
        );
}

.severity-bar > span:last-child {
    color: var(--text-soft);

    font-family: var(--font-mono);
    font-size: 10.5px;

    text-align: right;

    font-variant-numeric: tabular-nums;
}

@media (max-width: 480px) {

    .severity-bar {
        grid-template-columns: 64px minmax(0, 1fr) 40px;

        gap: 10px;
    }

}


/* =========================================================
   LISTS — compact row lists inside panels
   ========================================================= */

.list {
    display: flex;

    flex-direction: column;
}

.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 16px;

    padding: 13px 10px;

    border-radius: var(--radius-md);

    transition: background-color var(--transition);
}

.list-item:hover {
    background:
        color-mix(
            in srgb,
            var(--text) 4%,
            transparent
        );
}

.list-item + .list-item {
    border-top: 1px solid var(--border-soft);
}

.list-item strong {
    display: block;

    color: var(--text);

    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: 500;

    letter-spacing: 0.02em;
}

.list-item span {
    display: block;

    margin-top: 2px;

    color: var(--text-muted);

    font-size: 12px;
    line-height: 1.5;

    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}


/* =========================================================
   VULNERABILITY CARDS
   ========================================================= */

.vulnerability-list {
    display: flex;

    flex-direction: column;

    gap: 12px;
}

.vulnerability-card {
    position: relative;

    display: grid;

    grid-template-columns: 148px minmax(0, 1fr) auto;

    align-items: start;

    gap: 20px;

    padding: 18px 20px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 42%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);

    box-shadow: var(--shadow-sm);

    overflow: hidden;

    transition:
        transform var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

/* Severity signal edge */
.vulnerability-card::before {
    content: '';

    position: absolute;

    top: 14px;
    bottom: 14px;
    left: 0;

    width: 2px;

    border-radius: var(--radius-pill);

    background: var(--border-strong);

    opacity: 0.7;

    transition:
        opacity var(--transition),
        box-shadow var(--transition);
}

.vulnerability-card[data-severity="critical"]::before {
    background: var(--sev-critical);
    box-shadow: 0 0 14px var(--sev-critical);
    opacity: 1;
}

.vulnerability-card[data-severity="high"]::before {
    background: var(--sev-high);
    box-shadow: 0 0 12px var(--sev-high);
    opacity: 1;
}

.vulnerability-card[data-severity="medium"]::before {
    background: var(--sev-medium);
}

.vulnerability-card[data-severity="low"]::before {
    background: var(--sev-low);
}

.vulnerability-card:hover {
    transform: translateY(-2px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--shadow-md);
}

.vulnerability-id {
    display: flex;

    flex-direction: column;

    gap: 4px;
}

.vulnerability-id span {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.16em;
}

.vulnerability-id strong {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;

    letter-spacing: 0.02em;

    color: var(--text);
}

.vulnerability-id a {
    transition: color var(--transition);
}

.vulnerability-id a:hover {
    color: var(--accent);
}

.vulnerability-content h3 {
    color: var(--text);

    font-size: 14px;
    font-weight: 600;

    line-height: 1.45;

    margin-bottom: 6px;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vulnerability-content p {
    color: var(--text-muted);

    font-size: 12.5px;
    line-height: 1.6;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vulnerability-meta {
    display: flex;
    align-items: center;

    flex-wrap: wrap;

    gap: 6px 14px;

    margin-top: 10px;
}

.vulnerability-meta span {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;

    letter-spacing: 0.02em;
}

.vulnerability-meta strong {
    color: var(--text-soft);

    font-weight: 500;

    font-variant-numeric: tabular-nums;
}

.kev-badge {
    display: inline-flex;
    align-items: center;

    gap: 6px;

    padding: 3px 9px;

    border: 1px solid color-mix(in srgb, var(--sev-critical) 42%, transparent);
    border-radius: var(--radius-pill);

    background: color-mix(in srgb, var(--sev-critical) 10%, transparent);

    color: var(--sev-critical);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.1em;
    text-transform: uppercase;

    white-space: nowrap;
}

.kev-badge::before {
    content: '';

    width: 5px;
    height: 5px;

    border-radius: 50%;

    background: var(--sev-critical);

    box-shadow: 0 0 8px var(--sev-critical);

    animation: techpulse-pulse 2s infinite;
}

@media (max-width: 820px) {

    .vulnerability-card {
        grid-template-columns: minmax(0, 1fr);
    }

    .vulnerability-card .severity {
        justify-self: start;
    }

}


/* =========================================================
   SECURITY HISTORY ROWS
   ========================================================= */

.security-history {
    display: flex;

    flex-direction: column;
}

.security-history-row {
    display: grid;

    grid-template-columns: 108px repeat(3, minmax(0, 1fr));

    gap: 14px;

    padding: 11px 10px;

    border-radius: var(--radius-md);

    color: var(--text-soft);

    font-size: 12.5px;

    font-variant-numeric: tabular-nums;

    transition: background-color var(--transition);
}

.security-history-row:hover {
    background:
        color-mix(
            in srgb,
            var(--text) 4%,
            transparent
        );
}

.security-history-row + .security-history-row {
    border-top: 1px solid var(--border-soft);
}

.security-history-row .history-date {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 11px;
}

@media (max-width: 560px) {

    .security-history-row {
        grid-template-columns: 88px repeat(3, minmax(0, 1fr));

        gap: 8px;

        font-size: 11.5px;
    }

}


/* =========================================================
   RELEASE ROWS — table-like rows
   ========================================================= */

.release-table {
    display: flex;

    flex-direction: column;

    gap: 12px;
}

.release-row {
    display: grid;

    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr) auto minmax(0, 90px);

    align-items: center;

    gap: 18px;

    padding: 16px 18px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 42%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);

    box-shadow: var(--shadow-sm);

    transition:
        transform var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.release-row:hover {
    transform: translateY(-2px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--shadow-md);
}

.release-project {
    display: flex;
    align-items: center;

    gap: 14px;

    min-width: 0;
}

.release-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 42px;
    height: 42px;

    flex: 0 0 42px;

    border: 1px solid var(--glass-border-strong);
    border-radius: 13px;

    background:
        linear-gradient(
            150deg,
            var(--accent-2-soft),
            rgba(255, 255, 255, 0.02)
        ),
        var(--surface);

    color: var(--accent-2);

    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;

    box-shadow: var(--shadow-sm);
}

.release-project strong {
    display: block;

    color: var(--text);

    font-family: var(--font-display);
    font-size: 14.5px;
    font-weight: 700;

    letter-spacing: -0.01em;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.release-project span {
    display: block;

    margin-top: 1px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 11px;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.release-version span {
    display: block;

    margin-bottom: 3px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 8.5px;
    font-weight: 500;

    letter-spacing: 0.15em;
}

.release-version strong {
    color: var(--text);

    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
}

.release-row time {
    color: var(--text-muted);

    font-size: 11px;

    text-align: right;

    white-space: nowrap;
}

/* Release kind badges */
.release-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-width: 62px;

    padding: 5px 12px;

    border: 1px solid var(--border);
    border-radius: var(--radius-pill);

    background: var(--surface-soft);

    color: var(--text-soft);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.1em;
    text-transform: uppercase;

    white-space: nowrap;
}

.release-badge.major {
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    background: var(--accent-soft);
    color: var(--accent);

    box-shadow: 0 0 16px -6px var(--accent-glow);
}

.release-badge.minor {
    border-color: color-mix(in srgb, var(--accent-2) 40%, transparent);
    background: var(--accent-2-soft);
    color: var(--accent-2);
}

.release-badge.patch {
    border-color: color-mix(in srgb, var(--info) 36%, transparent);
    background: color-mix(in srgb, var(--info) 9%, transparent);
    color: var(--info);
}

@media (max-width: 860px) {

    .release-row {
        grid-template-columns: minmax(0, 1fr) auto;

        row-gap: 10px;
    }

    .release-version {
        display: none;
    }

    .release-row time {
        grid-column: 1;

        text-align: left;
    }

    .release-type {
        grid-row: 1;
        grid-column: 2;
    }

}


/* =========================================================
   TRACKED PROJECTS — compact grid
   ========================================================= */

.tracked-project-grid {
    display: grid;

    grid-template-columns: repeat(4, minmax(0, 1fr));

    gap: 12px;
}

.tracked-project {
    padding: 16px 16px 14px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background: var(--surface-soft);

    box-shadow: var(--shadow-sm);

    transition:
        transform var(--transition),
        border-color var(--transition);
}

.tracked-project:hover {
    transform: translateY(-2px);

    border-color: var(--glass-border-strong);
}

.tracked-project strong {
    display: block;

    color: var(--text);

    font-family: var(--font-display);
    font-size: 13.5px;
    font-weight: 700;

    margin-bottom: 3px;
}

.tracked-project span {
    display: block;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 1080px) {

    .tracked-project-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

}

@media (max-width: 640px) {

    .tracked-project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

}


/* =========================================================
   OPEN SOURCE CARDS
   ========================================================= */

.opensource-list {
    display: flex;

    flex-direction: column;

    gap: 14px;
}

.opensource-card {
    position: relative;

    display: grid;

    grid-template-columns: 64px minmax(0, 1fr);

    gap: 18px;

    padding: 22px 24px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 42%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));

    box-shadow: var(--shadow-md);

    transition:
        transform var(--dur-med) var(--ease),
        border-color var(--dur-med) var(--ease),
        box-shadow var(--dur-med) var(--ease);
}

.opensource-card:hover {
    transform: translateY(-3px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--shadow-lg);
}

.opensource-rank {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;

    padding-top: 3px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 15px;

    font-variant-numeric: tabular-nums;
}

.opensource-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: 18px;

    margin-bottom: 8px;
}

.opensource-header h3 {
    font-family: var(--font-display);

    font-size: 17px;
    font-weight: 700;

    letter-spacing: -0.015em;
}

.opensource-header h3 a {
    transition: color var(--transition);
}

.opensource-header h3 a:hover {
    color: var(--accent);
}

.opensource-label {
    display: inline-block;

    margin-top: 4px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;

    letter-spacing: 0.04em;
}

.opensource-growth {
    flex: 0 0 auto;

    color: var(--success);

    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;

    font-variant-numeric: tabular-nums;

    white-space: nowrap;
}

.opensource-growth span {
    font-size: 10px;

    color: var(--text-muted);

    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.growth-na {
    color: var(--text-muted);

    font-size: 11px;

    opacity: 0.75;
}

.opensource-card > .opensource-main > p {
    color: var(--text-muted);

    font-size: 13px;
    line-height: 1.65;

    margin-bottom: 16px;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.opensource-stats {
    display: flex;

    flex-wrap: wrap;

    gap: 10px 36px;
}

.opensource-stats strong {
    display: block;

    color: var(--text);

    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;

    font-variant-numeric: tabular-nums;
}

.opensource-stats span {
    display: block;

    margin-top: 2px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

@media (max-width: 640px) {

    .opensource-card {
        grid-template-columns: minmax(0, 1fr);

        padding: 18px;
    }

    .opensource-rank {
        padding: 0;
    }

    .opensource-header {
        flex-direction: column;

        gap: 8px;
    }

    .opensource-stats {
        gap: 10px 24px;
    }

}


/* =========================================================
   OPEN SOURCE SIGNALS — observation model tiles
   ========================================================= */

.opensource-signal-grid {
    display: grid;

    grid-template-columns: repeat(2, minmax(0, 1fr));

    gap: 16px;
}

.opensource-signal,
.history-signal {
    position: relative;

    padding: 26px 26px 24px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 44%
        ),
        var(--surface);

    box-shadow: var(--clay-shadow);

    overflow: hidden;

    transition:
        transform var(--transition),
        box-shadow var(--transition);
}

.opensource-signal:hover,
.history-signal:hover {
    transform: translateY(-3px);

    box-shadow: var(--clay-shadow-hover);
}

.signal-number {
    position: absolute;

    top: 14px;
    right: 18px;

    font-family: var(--font-display);
    font-size: 44px;
    font-weight: 700;

    line-height: 1;

    color: transparent;

    -webkit-text-stroke: 1px
        color-mix(
            in srgb,
            var(--accent) 26%,
            transparent
        );

    pointer-events: none;
}

.opensource-signal h3,
.history-signal h3 {
    font-family: var(--font-display);

    font-size: 16px;
    font-weight: 700;

    letter-spacing: -0.01em;

    margin-bottom: 8px;
}

.opensource-signal p,
.history-signal p {
    color: var(--text-muted);

    font-size: 13px;
    line-height: 1.7;
}

@media (max-width: 768px) {

    .opensource-signal-grid,
    .history-signal-grid {
        grid-template-columns: minmax(0, 1fr);
    }

}


/* =========================================================
   TECH ITEMS — RSS signal feed
   ========================================================= */

.tech-list {
    display: flex;

    flex-direction: column;

    gap: 12px;
}

.tech-item {
    padding: 18px 22px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 42%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);

    box-shadow: var(--shadow-sm);

    transition:
        transform var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.tech-item:hover {
    transform: translateY(-2px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--shadow-md);
}

.tech-item h4 {
    font-family: var(--font-display);

    font-size: 15px;
    font-weight: 600;

    letter-spacing: -0.01em;

    line-height: 1.45;

    margin-bottom: 8px;
}

.tech-item h4 a {
    transition: color var(--transition);
}

.tech-item h4 a:hover {
    color: var(--accent);
}

.tech-meta {
    display: flex;
    align-items: center;

    flex-wrap: wrap;

    gap: 8px;

    margin-bottom: 8px;
}

.tech-source {
    display: inline-flex;

    padding: 3px 10px;

    border: 1px solid var(--accent-border);
    border-radius: var(--radius-pill);

    background: var(--accent-soft);

    color: var(--accent);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.tech-category {
    display: inline-flex;

    padding: 3px 10px;

    border: 1px solid var(--border);
    border-radius: var(--radius-pill);

    background: var(--surface-soft);

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.tech-date {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;

    margin-left: auto;
}

.tech-item p {
    color: var(--text-muted);

    font-size: 12.5px;
    line-height: 1.6;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 640px) {

    .tech-item {
        padding: 16px 16px 14px;
    }

    .tech-date {
        margin-left: 0;

        width: 100%;
    }

}


/* =========================================================
   TIMELINE — archive preview
   ========================================================= */

.timeline-year {
    display: inline-block;

    margin-bottom: 16px;

    padding: 6px 14px;

    border: 1px solid var(--accent-border);
    border-radius: var(--radius-pill);

    background: var(--accent-soft);

    color: var(--accent);

    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;

    letter-spacing: 0.14em;
}

.timeline {
    position: relative;

    display: flex;

    flex-direction: column;

    gap: 4px;

    padding-left: 22px;
}

/* The connecting thread */
.timeline::before {
    content: '';

    position: absolute;

    top: 10px;
    bottom: 10px;
    left: 5px;

    width: 1px;

    background:
        linear-gradient(
            180deg,
            var(--accent),
            var(--accent-2),
            transparent
        );

    opacity: 0.4;
}

.timeline-item {
    position: relative;

    display: flex;
    align-items: center;

    gap: 16px;

    padding: 11px 14px;

    border-radius: var(--radius-md);

    transition: background-color var(--transition);
}

.timeline-item:hover {
    background:
        color-mix(
            in srgb,
            var(--text) 4%,
            transparent
        );
}

/* Node on the thread */
.timeline-item::before {
    content: '';

    position: absolute;

    top: 50%;
    left: -21px;

    width: 9px;
    height: 9px;

    transform: translateY(-50%);

    border-radius: 50%;

    background: var(--surface-raised);

    border: 1px solid var(--border-strong);

    transition:
        background-color var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.timeline-item.active::before {
    background: var(--accent);
    border-color: var(--accent);

    box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-item > span {
    flex: 0 0 auto;

    color: var(--text);

    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;

    letter-spacing: -0.02em;

    font-variant-numeric: tabular-nums;
}

.timeline-item strong {
    display: block;

    color: var(--text-soft);

    font-size: 12px;
    font-weight: 600;

    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.timeline-item small {
    display: block;

    margin-top: 1px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;
}


/* =========================================================
   HISTORY CARDS — archive editions
   ========================================================= */

.history-list {
    display: flex;

    flex-direction: column;

    gap: 14px;
}

.history-card {
    display: grid;

    grid-template-columns: 84px minmax(0, 1fr);

    gap: 22px;

    padding: 22px 24px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 42%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));

    box-shadow: var(--shadow-md);

    transition:
        transform var(--dur-med) var(--ease),
        border-color var(--dur-med) var(--ease),
        box-shadow var(--dur-med) var(--ease);
}

.history-card:hover {
    transform: translateY(-3px);

    border-color: var(--glass-border-strong);

    box-shadow: var(--shadow-lg);
}

.history-date {
    display: flex;

    flex-direction: column;

    gap: 2px;

    padding: 12px 0;

    border-right: 1px solid var(--border-soft);
}

.history-date strong {
    font-family: var(--font-display);

    font-size: 28px;
    font-weight: 700;

    line-height: 1;

    letter-spacing: -0.02em;

    color: var(--text);

    font-variant-numeric: tabular-nums;
}

.history-date span {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.13em;
}

.history-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: 16px;

    margin-bottom: 14px;
}

.history-header h3 {
    font-family: var(--font-display);

    font-size: 15.5px;
    font-weight: 700;

    letter-spacing: -0.01em;
}

.history-header span {
    display: block;

    margin-top: 3px;

    color: var(--text-muted);

    font-size: 12px;
}

.history-status {
    display: inline-flex;
    align-items: center;

    flex: 0 0 auto;

    padding: 4px 11px;

    border: 1px solid var(--accent-border);
    border-radius: var(--radius-pill);

    background: var(--accent-soft);

    color: var(--accent);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.12em;

    box-shadow: 0 0 14px -6px var(--accent-glow);
}

.history-stats {
    display: flex;

    flex-wrap: wrap;

    gap: 10px 32px;
}

.history-stats strong {
    display: block;

    color: var(--text);

    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;

    font-variant-numeric: tabular-nums;
}

.history-stats span {
    display: block;

    margin-top: 2px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

@media (max-width: 640px) {

    .history-card {
        grid-template-columns: minmax(0, 1fr);

        padding: 18px;
    }

    .history-date {
        flex-direction: row;

        align-items: baseline;

        gap: 8px;

        padding: 0 0 12px;

        border-right: none;
        border-bottom: 1px solid var(--border-soft);
    }

    .history-header {
        flex-direction: column;

        gap: 8px;
    }

}


/* =========================================================
   ARCHIVE DETAIL — deep snapshot cards
   ========================================================= */

.archive-detail {
    grid-template-columns: 84px minmax(0, 1fr);
}

.archive-columns {
    display: grid;

    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 18px;

    margin-top: 18px;

    padding-top: 18px;

    border-top: 1px solid var(--border-soft);
}

.archive-columns h4 {
    margin-bottom: 10px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.archive-columns li {
    padding: 6px 0;

    color: var(--text-soft);

    font-size: 12.5px;
    line-height: 1.5;
}

.archive-columns li + li {
    border-top: 1px solid var(--border-soft);
}

.archive-columns a {
    transition: color var(--transition);
}

.archive-columns a:hover {
    color: var(--accent);
}

.archive-empty {
    color: var(--text-muted);

    font-style: italic;

    opacity: 0.75;
}

.archive-panel {
    position: relative;

    padding: 32px 32px 28px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            168deg,
            var(--glass-highlight),
            rgba(255, 255, 255, 0) 40%
        ),
        var(--glass);

    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));

    box-shadow: var(--shadow-lg);

    overflow: hidden;
}

.archive-panel::before {
    content: '';

    position: absolute;

    top: 0;
    left: 12%;
    right: 12%;

    height: 1px;

    background:
        linear-gradient(
            90deg,
            transparent,
            var(--glass-highlight-strong),
            transparent
        );

    pointer-events: none;
}

.archive-panel h2 {
    font-family: var(--font-display);

    font-size: 22px;
    font-weight: 700;

    letter-spacing: -0.02em;

    margin-bottom: 14px;
}

.archive-panel p {
    color: var(--text-muted);

    font-size: 13.5px;
    line-height: 1.7;

    margin-bottom: 18px;
}

.archive-principle {
    max-width: 780px;

    margin-inline: auto;
}

@media (max-width: 768px) {

    .archive-columns {
        grid-template-columns: minmax(0, 1fr);
    }

    .archive-panel {
        padding: 24px 20px 20px;
    }

}


/* =========================================================
   FILTERS — segmented severity control
   ========================================================= */

.filter-group {
    display: inline-flex;
    align-items: center;

    flex-wrap: wrap;

    gap: 4px;

    padding: 5px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);

    background: var(--glass-soft);

    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}

.filter-button {
    display: inline-flex;
    align-items: center;

    padding: 8px 16px;

    border: 1px solid transparent;
    border-radius: var(--radius-pill);

    background: transparent;

    color: var(--text-soft);

    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;

    letter-spacing: 0.05em;
    text-transform: uppercase;

    white-space: nowrap;

    transition:
        color var(--transition),
        background-color var(--transition),
        border-color var(--transition),
        box-shadow var(--transition),
        transform var(--transition);
}

.filter-button:hover {
    color: var(--text);

    background:
        color-mix(
            in srgb,
            var(--text) 6%,
            transparent
        );
}

.filter-button:active {
    transform: scale(0.97);
}

.filter-button.active {
    color: var(--accent);

    border-color: var(--accent-border);

    background: var(--accent-soft);

    box-shadow:
        0 0 0 1px var(--accent-border),
        0 6px 18px -8px var(--accent-glow);
}

@media (max-width: 768px) {

    .filter-group {
        width: 100%;

        justify-content: flex-start;
    }

}


/* =========================================================
   MISC PAGE ELEMENTS
   ========================================================= */

.source-tags {
    display: flex;

    flex-wrap: wrap;

    gap: 8px;

    margin-top: 16px;
}

.source-note {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 11px;

    letter-spacing: 0.04em;
}

.link-dead {
    color: var(--text-muted);

    opacity: 0.8;
}

.release-history {
    display: flex;

    flex-direction: column;

    gap: 14px;
}

.release-history-stats {
    display: grid;

    grid-template-columns: repeat(4, minmax(0, 1fr));

    gap: 12px;

    margin-bottom: 24px;
}

.release-history-stats > div {
    padding: 16px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background: var(--surface-soft);

    box-shadow: var(--shadow-sm);
}

.release-history-stats strong {
    display: block;

    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;

    letter-spacing: -0.02em;

    font-variant-numeric: tabular-nums;
}

.release-history-stats span {
    display: block;

    margin-top: 4px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 500;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

@media (max-width: 768px) {

    .release-history-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

}


/* =========================================================
   EMPTY & ERROR STATES
   ========================================================= */

.empty-state {
    display: flex;

    flex-direction: column;
    align-items: center;
    justify-content: center;

    gap: 6px;

    padding: 52px 28px;

    border: 1px dashed var(--border);

    border-radius: var(--radius-lg);

    background:
        color-mix(
            in srgb,
            var(--surface) 55%,
            transparent
        );

    color: var(--text-muted);

    text-align: center;

    font-size: 13.5px;
    line-height: 1.6;
}

.empty-state::before {
    content: '';

    width: 34px;
    height: 34px;

    margin-bottom: 8px;

    border-radius: 50%;

    border: 1px dashed var(--border-strong);

    background:
        radial-gradient(
            circle at 50% 42%,
            var(--accent-soft),
            transparent 70%
        );
}

.empty-state--error {
    border-color: var(--warning-border);

    color: var(--warning);
}


/* =========================================================
   SKELETONS — shimmering placeholders
   ========================================================= */

.skeleton {
    display: flex;

    flex-direction: column;

    gap: 10px;

    padding: 16px 18px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);

    background: var(--surface-soft);
}

.skeleton--card {
    padding: 22px 24px;

    border-radius: var(--radius-xl);
}

.skeleton--stat {
    border-radius: var(--radius-xl);
}

.skeleton-line {
    position: relative;

    display: block;

    height: 11px;

    border-radius: var(--radius-pill);

    background: var(--surface-raised);

    overflow: hidden;
}

.skeleton-line--short {
    width: 46%;

    height: 9px;
}

.skeleton-line::after {
    content: '';

    position: absolute;
    inset: 0;

    transform: translateX(-100%);

    background:
        linear-gradient(
            90deg,
            transparent,
            color-mix(
                in srgb,
                var(--text) 7%,
                transparent
            ),
            transparent
        );

    animation:
        skeleton-shimmer
        1.6s
        var(--ease)
        infinite;
}

@keyframes skeleton-shimmer {
    100% {
        transform: translateX(100%);
    }
}

.is-hidden {
    display: none !important;
}


/* =========================================================
   SEARCH — trigger + command palette
   ========================================================= */

.search-toggle {
    display: inline-flex;
    align-items: center;

    gap: 9px;

    height: 40px;

    padding: 0 12px 0 13px;

    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);

    background: var(--glass-soft);

    color: var(--text-soft);

    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);

    transition:
        color var(--transition),
        border-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

.search-toggle:hover {
    color: var(--text);

    border-color: var(--border-strong);

    transform: translateY(-1px);
}

.search-toggle svg {
    width: 16px;
    height: 16px;

    flex: 0 0 16px;
}

.search-hint {
    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10px;

    letter-spacing: 0.05em;

    border: 1px solid var(--border);

    border-radius: 6px;

    padding: 2px 6px;

    line-height: 1.2;
}

@media (max-width: 900px) {

    .search-hint {
        display: none;
    }

    .search-toggle {
        width: 40px;

        padding: 0;

        justify-content: center;
    }

}


/* Palette overlay */
.search-overlay {
    position: fixed;

    inset: 0;

    z-index: calc(var(--z-mobile-nav) + 10);

    display: flex;
    align-items: flex-start;
    justify-content: center;

    padding: 14vh 20px 20px;

    background:
        color-mix(
            in srgb,
            var(--bg-deep) 62%,
            transparent
        );

    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);

    opacity: 0;

    transition: opacity 220ms var(--ease);
}

.search-overlay.is-open {
    opacity: 1;
}

.search-overlay[hidden] {
    display: none;
}

.search-modal {
    width: min(640px, 100%);

    max-height: 68vh;

    display: flex;

    flex-direction: column;

    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            170deg,
            var(--glass-highlight-strong),
            rgba(255, 255, 255, 0) 34%
        ),
        var(--glass-strong);

    -webkit-backdrop-filter:
        blur(28px)
        saturate(1.5);
    backdrop-filter:
        blur(28px)
        saturate(1.5);

    box-shadow: var(--shadow-lg);

    overflow: hidden;

    transform: translateY(10px) scale(0.985);

    transition: transform 240ms var(--ease);
}

.search-overlay.is-open .search-modal {
    transform: translateY(0) scale(1);
}

.search-field {
    display: flex;
    align-items: center;

    gap: 12px;

    padding: 16px 20px;

    border-bottom: 1px solid var(--border-soft);
}

.search-field svg {
    width: 17px;
    height: 17px;

    color: var(--text-muted);

    flex: 0 0 17px;
}

.search-field input {
    flex: 1;

    min-width: 0;

    border: none;

    background: transparent;

    color: var(--text);

    font-size: 15.5px;
    font-weight: 500;
}

.search-field input:focus {
    outline: none;
}

.search-field input::placeholder {
    color: var(--text-muted);
}

.search-field kbd {
    flex: 0 0 auto;

    padding: 3px 7px;

    border: 1px solid var(--border);
    border-radius: 6px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10px;
}

.search-results {
    flex: 1;

    overflow-y: auto;

    padding: 10px;

    overscroll-behavior: contain;
}

.search-group-label {
    padding: 12px 12px 6px;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 9.5px;
    font-weight: 500;

    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.search-result {
    display: flex;
    align-items: center;

    gap: 12px;

    width: 100%;

    padding: 11px 12px;

    border: 1px solid transparent;
    border-radius: var(--radius-md);

    color: var(--text-soft);

    text-align: left;

    transition:
        background-color 120ms var(--ease),
        color 120ms var(--ease),
        border-color 120ms var(--ease);
}

.search-result:hover,
.search-result.is-selected {
    color: var(--text);

    border-color: var(--accent-border);

    background: var(--accent-soft);
}

.search-result .search-result-kind {
    flex: 0 0 auto;

    min-width: 64px;

    padding: 3px 8px;

    border: 1px solid var(--border);
    border-radius: var(--radius-pill);

    background: var(--surface-soft);

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 8.5px;
    font-weight: 500;

    letter-spacing: 0.1em;
    text-transform: uppercase;

    text-align: center;
}

.search-result .search-result-label {
    flex: 0 1 auto;

    min-width: 0;

    font-size: 13.5px;
    font-weight: 500;

    line-height: 1.4;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result .search-result-sub {
    flex: 1 1 0%;

    min-width: 0;

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10.5px;

    text-align: right;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-empty {
    padding: 44px 20px;

    color: var(--text-muted);

    text-align: center;

    font-size: 13.5px;
}

.search-footer {
    display: flex;
    align-items: center;

    gap: 16px;

    padding: 11px 20px;

    border-top: 1px solid var(--border-soft);

    color: var(--text-muted);

    font-family: var(--font-mono);
    font-size: 10px;

    letter-spacing: 0.04em;
}

.search-footer kbd {
    padding: 2px 6px;

    border: 1px solid var(--border);
    border-radius: 5px;

    font-family: inherit;

    font-size: 9.5px;

    margin-right: 4px;
}