/* ============================================================================
   panel-controls.css — Panel Control System (PCS)
   ----------------------------------------------------------------------------
   ONE control language for every toolbar / header / sub-toolbar across all
   component split panels (flow, dashboard, canvas, knowledge graph, scheduler).

   Replaces each component's bespoke buttons / toggles / badges / dropdowns with
   shared primitives so sizing, radius, motion and — critically — COLOUR never
   drift again. All metrics come from the --ctl-* tokens (themes.css :root) and
   all colour from the per-theme --status-* / per-panel --sp-accent, so controls
   re-theme automatically (dark + light) and carry zero hardcoded hex.

   Tinting convention: every control exposes a --pc-tint custom property
   (default = panel accent). Semantic variants just reassign --pc-tint, and the
   hover / active / boundary states derive from it via color-mix. Add a state by
   setting --pc-tint once — never by writing another hex.

   Icons: monochrome SVG on currentColor only. No emoji, ever.
   ============================================================================ */

/* ── Button — ghost by default, a soft pill on hover ─────────────────────────
   Replaces: .flow-btn*, .canvas-toolbar-btn, .kg-toolbar-btn, .dash-tile-btn,
   .sched-btn. */
.pc-btn {
    --pc-tint: var(--sp-accent, var(--teradata-orange, #F15F22));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-height: var(--ctl-height, 28px);
    padding: 0 var(--ctl-pad-x, 9px);
    border: 1px solid transparent;
    border-radius: var(--ctl-radius, 8px);
    background: none;
    color: var(--text-muted, #94a3b8);
    font: inherit;
    font-size: var(--ctl-font, 0.78rem);
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: color var(--duration-fast, 0.15s) ease,
                background var(--duration-fast, 0.15s) ease,
                border-color var(--duration-fast, 0.15s) ease,
                transform var(--duration-instant, 0.1s) ease;
}
.pc-btn:hover { color: var(--text-primary, #f8fafc); background: var(--hover-bg, rgba(148, 163, 184, 0.08)); }
.pc-btn:active:not(:disabled) { transform: var(--ctl-press, scale(0.94)); }
.pc-btn:disabled { opacity: 0.4; cursor: default; }
.pc-btn svg { width: var(--ctl-icon, 16px); height: var(--ctl-icon, 16px); }

/* Icon-only square button */
.pc-btn--icon { width: var(--ctl-height, 28px); padding: 0; }

/* Semantic variants — only reassign --pc-tint; everything else derives. */
.pc-btn--accent  { --pc-tint: var(--sp-accent, var(--teradata-orange, #F15F22)); color: var(--pc-tint); }
.pc-btn--success { --pc-tint: var(--status-success, #10b981); color: var(--pc-tint); }
.pc-btn--danger  { --pc-tint: var(--status-error, #ef4444);  color: var(--pc-tint); }
.pc-btn--warning { --pc-tint: var(--status-warning, #f59e0b); color: var(--pc-tint); }
.pc-btn--info    { --pc-tint: var(--status-info, #3b82f6);   color: var(--pc-tint); }

.pc-btn--accent:hover, .pc-btn--success:hover, .pc-btn--danger:hover,
.pc-btn--warning:hover, .pc-btn--info:hover {
    color: var(--pc-tint);
    background: color-mix(in srgb, var(--pc-tint) 14%, transparent);
}

/* Toggled / active state — filled tint (accent by default, variant if set). */
.pc-btn.is-active {
    color: var(--pc-tint);
    background: color-mix(in srgb, var(--pc-tint) 14%, transparent);
}

/* CTA modifier — a visible boundary for genuine primary actions (e.g. Run). */
.pc-btn--cta { border-color: color-mix(in srgb, var(--pc-tint) 38%, transparent); }
.pc-btn--cta:hover { border-color: color-mix(in srgb, var(--pc-tint) 55%, transparent); }

/* ── Segmented control — soft track with pill segments ───────────────────────
   Replaces: .flow-seg and every ad-hoc two-button toggle box. */
.pc-seg {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 2px;
    border-radius: var(--ctl-radius, 8px);
    background: var(--hover-bg, rgba(148, 163, 184, 0.07));
}
.pc-seg > button, .pc-seg > .pc-seg-opt {
    --pc-tint: var(--sp-accent, var(--teradata-orange, #F15F22));
    border: none;
    border-radius: var(--ctl-radius-inner, 6px);
    padding: 3px 9px;
    font: inherit;
    font-size: var(--ctl-font, 0.78rem);
    font-weight: 500;
    color: var(--text-muted, #94a3b8);
    background: none;
    cursor: pointer;
    transition: color var(--duration-fast, 0.15s) ease,
                background var(--duration-fast, 0.15s) ease,
                transform var(--duration-instant, 0.1s) ease;
}
.pc-seg > button:active { transform: var(--ctl-press, scale(0.94)); }
.pc-seg-opt--success { --pc-tint: var(--status-success, #10b981); }
.pc-seg-opt--danger  { --pc-tint: var(--status-error, #ef4444); }
.pc-seg-opt--warning { --pc-tint: var(--status-warning, #f59e0b); }
.pc-seg-opt--info    { --pc-tint: var(--status-info, #3b82f6); }
.pc-seg > .is-active, .pc-seg > [aria-pressed="true"] {
    color: var(--pc-tint);
    background: color-mix(in srgb, var(--pc-tint) 16%, transparent);
    font-weight: 600;
}

/* ── Badge — status / count pill ─────────────────────────────────────────────
   Replaces the scattered per-component status badges and count chips. */
.pc-badge {
    --pc-tint: var(--text-muted, #94a3b8);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-full, 9999px);
    font-size: 0.68rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--pc-tint);
    background: color-mix(in srgb, var(--pc-tint) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--pc-tint) 24%, transparent);
}
.pc-badge--success { --pc-tint: var(--status-success, #10b981); }
.pc-badge--danger  { --pc-tint: var(--status-error, #ef4444); }
.pc-badge--warning { --pc-tint: var(--status-warning, #f59e0b); }
.pc-badge--info    { --pc-tint: var(--status-info, #3b82f6); }
.pc-badge--accent  { --pc-tint: var(--sp-accent, var(--teradata-orange, #F15F22)); }
/* Count badge — circular, for "History 20" style superscripts. */
.pc-badge--count {
    min-width: 1.05rem;
    height: 1.05rem;
    padding: 0 4px;
    justify-content: center;
    font-size: 0.62rem;
    font-weight: 700;
    border: none;
}

/* ── Status dot ──────────────────────────────────────────────────────────────
   Replaces .sched-status-dot variants and ad-hoc dots. */
.pc-dot {
    --pc-tint: var(--text-muted, #94a3b8);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--pc-tint);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc-tint) 14%, transparent);
}
.pc-dot--success { --pc-tint: var(--status-success, #10b981); }
.pc-dot--danger  { --pc-tint: var(--status-error, #ef4444); }
.pc-dot--warning { --pc-tint: var(--status-warning, #f59e0b); }
.pc-dot--accent  { --pc-tint: var(--sp-accent, var(--teradata-orange, #F15F22)); }
.pc-dot--pulse { animation: pc-dot-pulse 1.4s ease-in-out infinite; }
@keyframes pc-dot-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }

/* ── Toolbar input (search) ──────────────────────────────────────────────────
   Replaces .kg-toolbar-search. */
.pc-input {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: var(--ctl-height, 28px);
    padding: 0 8px;
    border-radius: var(--ctl-radius, 8px);
    background: var(--input-bg, rgba(148, 163, 184, 0.06));
    border: 1px solid var(--border-secondary, rgba(148, 163, 184, 0.12));
    transition: border-color var(--duration-fast, 0.15s) ease;
}
.pc-input:focus-within { border-color: var(--sp-accent, var(--border-focus, #3b82f6)); }
.pc-input svg { width: 14px; height: 14px; color: var(--text-muted, #94a3b8); flex-shrink: 0; }
.pc-input > input {
    border: none;
    background: none;
    outline: none;
    color: var(--text-primary, #f8fafc);
    font: inherit;
    font-size: var(--ctl-font, 0.78rem);
    min-width: 0;
    width: 130px;
}
.pc-input > input::placeholder { color: var(--text-subtle, var(--text-muted, #94a3b8)); }

/* ── Popover menu ────────────────────────────────────────────────────────────
   Replaces flow-ver / canvas-* / kg version dropdowns. (The shared switcher menu
   .sp-switcher-menu already follows this language.) */
.pc-menu {
    min-width: 200px;
    max-width: 320px;
    max-height: 70vh;
    overflow-y: auto;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--card-bg, #1e293b);
    border: 1px solid var(--border-primary, rgba(148, 163, 184, 0.18));
    border-radius: var(--radius-lg, 12px);
    box-shadow: var(--shadow-xl, 0 20px 40px rgba(0, 0, 0, 0.45));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: var(--z-dropdown, 1000);
    animation: pc-menu-in 0.16s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes pc-menu-in {
    from { opacity: 0; transform: translateY(-8px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
.pc-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: var(--ctl-radius-inner, 6px);
    font-size: var(--ctl-font, 0.78rem);
    color: var(--text-primary, #f8fafc);
    cursor: pointer;
    transition: background var(--duration-fast, 0.15s) ease;
}
.pc-menu-item:hover { background: var(--hover-bg, rgba(148, 163, 184, 0.08)); }
.pc-menu-item.is-current {
    background: color-mix(in srgb, var(--sp-accent, #F15F22) 12%, transparent);
    color: var(--sp-accent, #F15F22);
}

/* ── Divider — faded hairline (alias of .sp-divider) ─────────────────────────*/
.pc-divider {
    width: 1px;
    height: 18px;
    flex-shrink: 0;
    margin: 0 6px;
    background: linear-gradient(to bottom,
        transparent,
        var(--border-primary, rgba(148, 163, 184, 0.18)) 25%,
        var(--border-primary, rgba(148, 163, 184, 0.18)) 75%,
        transparent);
}