/**
 * pattern-sparkline.css - Pattern Analysis card sparkline + confidence chip.
 *
 * Per mockup spec L2: "card with pattern name + confidence % + small
 * sparkline showing pattern-match history."
 *
 * Adds two pieces inside the existing Pattern Analysis card:
 *   1. A confidence pill next to the pattern name (mirrors #confidence)
 *   2. An inline SVG sparkline showing the last N pattern-match
 *      confidence values
 *
 * Modular from day one (2026-04-25). Behavior in
 * public/js/panels/pattern-sparkline.js. Existing pattern-name, pattern-
 * visual, and pattern-description elements are NOT modified — this is a
 * pure additive overlay.
 */

.pattern-sparkline-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 6px 0 10px 0;
}

.pattern-sparkline-conf {
    /* Confidence chip — Orbitron number on a translucent surface,
       border tints to brand-red as confidence climbs (JS handles). */
    font-family: 'Orbitron', monospace;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #aaa;
    transition: color 0.25s ease,
                border-color 0.25s ease,
                background 0.25s ease,
                box-shadow 0.25s ease;
}

/* Bucketed conviction tiers — JS toggles classes based on % bucket */
.pattern-sparkline-conf.tier-low {
    color: #888;
    border-color: rgba(255, 255, 255, 0.10);
}

.pattern-sparkline-conf.tier-mid {
    color: #fcd34d;
    border-color: rgba(252, 211, 77, 0.28);
    background: rgba(252, 211, 77, 0.05);
}

.pattern-sparkline-conf.tier-high {
    color: var(--brand-red-bright);
    border-color: rgba(239, 68, 68, 0.45);
    background: rgba(239, 68, 68, 0.08);
    box-shadow: 0 0 14px rgba(239, 68, 68, 0.20);
}

.pattern-sparkline-svg {
    flex: 1;
    height: 28px;
    /* The SVG itself fills this box and uses preserveAspectRatio="none"
       so the path stretches/shrinks with whatever width is available. */
    display: block;
    /* Subtle inner glow on the chart area so the line reads as living
       data, not a static decoration. */
    background: linear-gradient(
        180deg,
        rgba(220, 38, 38, 0.04) 0%,
        rgba(220, 38, 38, 0) 100%
    );
    border-radius: 6px;
}

/* Path stroke — JS sets the d attribute; styling lives here so the
   visual treatment can change without touching the data layer. */
.pattern-sparkline-svg .pl-line {
    fill: none;
    stroke: var(--brand-red-bright);
    stroke-width: 1.5;
    stroke-linejoin: round;
    stroke-linecap: round;
    /* drop-shadow gives the line a soft halo against the dark panel */
    filter: drop-shadow(0 0 4px rgba(239, 68, 68, 0.45));
}

/* Optional fill area beneath the line — fades to transparent so the
   sparkline reads as a "rising tide" pattern, not a hard bar chart. */
.pattern-sparkline-svg .pl-fill {
    fill: url(#patternSparkGradient);
    stroke: none;
    opacity: 0.55;
}

/* Empty-state hint when no data buffered yet */
.pattern-sparkline-svg .pl-empty {
    fill: #666;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.6px;
    text-anchor: middle;
}

/* Reduced-motion: kill the chip transition animations */
@media (prefers-reduced-motion: reduce) {
    .pattern-sparkline-conf {
        transition: none;
    }
}