/**
 * system-health.css — SystemHealth Footer-Right Operator Health Strip
 *
 * Compact monospace horizontal strip displaying system health metrics:
 * SessionRouter state, broker WS status, error count, uptime, last crash,
 * risk posture, and commit hash.
 *
 * All classes prefixed sh- for scoping.
 * Uses CSS theme variables exclusively (--text-primary, --profit-color, etc).
 * Single-row layout with pill-style segments and separator dividers.
 * Responsive: graceful degradation on narrow screens (wrap to 2 rows).
 *
 * @module public/css/panels/system-health
 */

/* ────────────────────────────────────────────────────────────────────────
   ROOT CONTAINER
   ──────────────────────────────────────────────────────────────────────── */

#systemHealth {
    background: var(--glass-bg, rgba(15, 15, 18, 0.55));
    border: 1px solid var(--glass-border, rgba(255, 215, 0, 0.18));
    border-radius: 6px;
    padding: 8px 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    line-height: 1.4;
    color: var(--text-primary, #ffffff);
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0;
    height: 32px;
    min-height: 32px;
    flex-shrink: 0;
    box-shadow: var(--glass-underglow, 0 6px 24px -8px rgba(255, 215, 0, 0.25), 0 1px 0 0 rgba(255, 215, 0, 0.08) inset);
    backdrop-filter: blur(14px) saturate(160%);
}

/* ────────────────────────────────────────────────────────────────────────
   SEGMENT PILLS
   ──────────────────────────────────────────────────────────────────────── */

.sh-segment {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    flex-shrink: 0;
    transition: all 120ms ease;
}

.sh-segment:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.08);
    cursor: help;
}

/* ────────────────────────────────────────────────────────────────────────
   SEPARATORS
   ──────────────────────────────────────────────────────────────────────── */

.sh-separator {
    color: rgba(255, 255, 255, 0.2);
    margin: 0 2px;
    flex-shrink: 0;
    user-select: none;
}

/* ────────────────────────────────────────────────────────────────────────
   TEXT STYLES
   ──────────────────────────────────────────────────────────────────────── */

.sh-label {
    color: var(--text-secondary, #a0a0a0);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-size: 8px;
    margin-right: 2px;
}

.sh-value {
    color: var(--text-primary, #ffffff);
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ────────────────────────────────────────────────────────────────────────
   STATUS INDICATORS
   ──────────────────────────────────────────────────────────────────────── */

.sh-indicator {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    margin-left: 1px;
    user-select: none;
}

.sh-indicator.ok {
    color: var(--profit-color, #00ff88);
    text-shadow: 0 0 4px rgba(0, 255, 136, 0.3);
}

.sh-indicator.fail {
    color: var(--loss-color, #ff3366);
    text-shadow: 0 0 4px rgba(255, 51, 102, 0.3);
}

.sh-indicator.warn {
    color: var(--ml-color, #ffd700);
    text-shadow: 0 0 4px rgba(255, 215, 0, 0.2);
}

.sh-indicator.muted {
    color: var(--neutral-color, #8b8b8b);
}

/* ────────────────────────────────────────────────────────────────────────
   ERROR COUNT
   ──────────────────────────────────────────────────────────────────────── */

.sh-error-count {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.sh-error-count.ok {
    color: var(--profit-color, #00ff88);
}

.sh-error-count.alert {
    color: var(--loss-color, #ff3366);
    animation: sh-error-pulse 1s ease-in-out infinite;
}

@keyframes sh-error-pulse {
    0%, 100% {
        opacity: 1;
        text-shadow: none;
    }
    50% {
        opacity: 0.7;
        text-shadow: 0 0 6px rgba(255, 51, 102, 0.5);
    }
}

/* ────────────────────────────────────────────────────────────────────────
   UPTIME
   ──────────────────────────────────────────────────────────────────────── */

.sh-uptime {
    font-variant-numeric: tabular-nums;
    color: var(--text-primary, #ffffff);
    letter-spacing: 0.2px;
}

/* ────────────────────────────────────────────────────────────────────────
   LAST CRASH TIME
   ──────────────────────────────────────────────────────────────────────── */

.sh-crash-time {
    font-weight: 600;
    letter-spacing: 0.3px;
}

.sh-crash-time.never {
    color: var(--ml-color, #ffd700);
    text-shadow: 0 0 6px rgba(255, 215, 0, 0.3);
}

.sh-crash-time.ago {
    color: var(--text-primary, #ffffff);
}

/* ────────────────────────────────────────────────────────────────────────
   RISK POSTURE
   ──────────────────────────────────────────────────────────────────────── */

.sh-posture {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.sh-posture.armed {
    color: var(--ml-color, #ffd700);
    animation: sh-armed-pulse 1.5s ease-in-out infinite;
}

.sh-posture.degraded {
    color: var(--loss-color, #ff3366);
    animation: sh-degrade-pulse 0.8s ease-in-out infinite;
}

.sh-posture.unknown {
    color: var(--neutral-color, #8b8b8b);
}

@keyframes sh-armed-pulse {
    0%, 100% {
        opacity: 0.8;
        text-shadow: none;
    }
    50% {
        opacity: 1;
        text-shadow: 0 0 8px rgba(255, 215, 0, 0.6);
    }
}

@keyframes sh-degrade-pulse {
    0%, 100% {
        opacity: 1;
        text-shadow: none;
    }
    50% {
        opacity: 0.6;
        text-shadow: 0 0 6px rgba(255, 51, 102, 0.5);
    }
}

/* ────────────────────────────────────────────────────────────────────────
   COMMIT HASH
   ──────────────────────────────────────────────────────────────────────── */

.sh-commit {
    font-family: 'Courier New', monospace;
    color: var(--text-secondary, #a0a0a0);
    font-weight: 500;
    letter-spacing: 0.2px;
    font-size: 9px;
}

.sh-commit.unknown {
    color: var(--neutral-color, #8b8b8b);
    font-style: italic;
}

/* ────────────────────────────────────────────────────────────────────────
   SCROLLBAR (auto-overflow on narrow)
   ──────────────────────────────────────────────────────────────────────── */

#systemHealth::-webkit-scrollbar {
    height: 4px;
}

#systemHealth::-webkit-scrollbar-track {
    background: transparent;
}

#systemHealth::-webkit-scrollbar-thumb {
    background: rgba(255, 215, 0, 0.2);
    border-radius: 2px;
}

#systemHealth::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 215, 0, 0.4);
}

/* ────────────────────────────────────────────────────────────────────────
   RESPONSIVE: TABLET & MOBILE
   ──────────────────────────────────────────────────────────────────────── */

@media (max-width: 1400px) {
    #systemHealth {
        font-size: 9px;
        padding: 7px 10px;
        height: 30px;
        min-height: 30px;
    }

    .sh-segment {
        padding: 3px 6px;
        gap: 5px;
    }

    .sh-label {
        font-size: 7px;
        letter-spacing: 0.4px;
    }

    .sh-separator {
        margin: 0 1px;
    }
}

@media (max-width: 1000px) {
    #systemHealth {
        font-size: 8px;
        padding: 6px 8px;
        height: 28px;
        min-height: 28px;
    }

    .sh-segment {
        padding: 2px 5px;
        gap: 4px;
    }

    .sh-label {
        font-size: 7px;
    }

    .sh-indicator {
        font-size: 8px;
    }
}

@media (max-width: 768px) {
    #systemHealth {
        flex-wrap: wrap;
        height: auto;
        min-height: auto;
        padding: 4px 6px;
        gap: 2px;
    }

    .sh-segment {
        padding: 2px 4px;
        font-size: 7px;
    }

    .sh-label {
        font-size: 6px;
    }

    .sh-separator {
        margin: 0;
    }
}

/* ────────────────────────────────────────────────────────────────────────
   DARK MODE & CONTRAST (future theme support)
   ──────────────────────────────────────────────────────────────────────── */

@media (prefers-color-scheme: dark) {
    #systemHealth {
        border-color: var(--glass-border, rgba(255, 215, 0, 0.12));
    }

    .sh-segment {
        background: rgba(255, 255, 255, 0.01);
        border-color: rgba(255, 255, 255, 0.03);
    }

    .sh-segment:hover {
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.06);
    }
}

@media (prefers-contrast: more) {
    .sh-indicator.ok {
        text-shadow: 0 0 6px rgba(0, 255, 136, 0.6);
    }

    .sh-indicator.fail {
        text-shadow: 0 0 6px rgba(255, 51, 102, 0.6);
    }

    .sh-posture.armed {
        text-shadow: 0 0 10px rgba(255, 215, 0, 0.8);
    }
}

/* ────────────────────────────────────────────────────────────────────────
   ACCESSIBILITY: FOCUS STATES
   ──────────────────────────────────────────────────────────────────────── */

#systemHealth {
    outline: none;
}

.sh-segment:focus-visible {
    outline: 1px solid rgba(255, 215, 0, 0.5);
    outline-offset: 2px;
}

/* ────────────────────────────────────────────────────────────────────────
   ANIMATION: GLITCH (optional theme override)
   ──────────────────────────────────────────────────────────────────────── */

body.visual-mode #systemHealth {
    animation: sh-glitch-scan 4s linear infinite;
}

@keyframes sh-glitch-scan {
    0% {
        text-shadow: none;
    }
    25% {
        text-shadow: 1px 0 0 rgba(255, 215, 0, 0.3);
    }
    50% {
        text-shadow: none;
    }
    75% {
        text-shadow: -1px 0 0 rgba(255, 215, 0, 0.3);
    }
    100% {
        text-shadow: none;
    }
}