/* TRAINING SYSTEM UI - BODYFRONT */
:root {
    --tr-panel: rgba(15, 18, 22, 0.9);
    --tr-accent: #FFB300;
    --tr-accent-hover: #FFC940;
    --tr-text: #F0F2F5;
    --tr-muted: #7A8490;
    --tr-border: rgba(255, 179, 0, 0.3);
    --tr-border-subtle: rgba(255, 255, 255, 0.1);
    --tr-font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* =========================================
   IN-GAME HUD
========================================= */
#trainingHud {
    position: fixed;
    top: var(--hud-training-top, max(env(safe-area-inset-top, 16px), 16px));
    left: var(--hud-training-left, max(env(safe-area-inset-left, 16px), 16px));
    width: var(--hud-training-width, 320px);
    max-height: var(--hud-training-max-h, calc(100dvh - 32px));
    box-sizing: border-box;
    max-width: calc(100vw - 32px);
    background: var(--tr-panel);
    border: 1px solid var(--tr-border);
    border-radius: 6px;
    color: var(--tr-text);
    font-family: var(--tr-font);
    display: flex;
    flex-direction: column;
    z-index: 90;
    backdrop-filter: blur(12px);
    pointer-events: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    user-select: none;
    -webkit-user-select: none;
}

/* Ensure hidden always wins over flex */
#trainingHud[hidden],
#trainingHud [hidden] {
    display: none !important;
}

button.tr-hud-header {
    flex-shrink: 0;
    overflow-wrap: anywhere;
    width: 100%;
    background: rgba(0, 0, 0, 0.6);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    border-radius: 6px 6px 0 0;
    color: inherit;
    font: inherit;
    margin: 0;
    appearance: none;
    -webkit-appearance: none;
}

.tr-hud-title {
    display: flex;
    min-width: 0;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tr-badge {
    background: rgba(255, 179, 0, 0.2);
    color: var(--tr-accent);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 800;
}

.tr-hud-prog {
    flex-shrink: 0;
    font-size: 12px;
    color: var(--tr-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    font-variant-numeric: tabular-nums;
}

.tr-toggle-icon {
    font-size: 10px;
    transition: transform 0.2s;
}

.tr-hud-content {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    max-height: var(--hud-training-content-h, calc(100dvh - 180px));
    min-height: 0;
    box-sizing: border-box;
    padding: 16px;
    gap: 16px;
    overscroll-behavior: contain;
    animation: tr-fade-in 0.2s ease;
}

@keyframes tr-fade-in {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.tr-hud-instruction {
    font-size: 14px;
    line-height: 1.4;
    color: #FFF;
    font-weight: 600;
}

.tr-hud-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: rgba(0,0,0,0.3);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--tr-border-subtle);
}

.tr-ctrl-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
}

.tr-ctrl-item kbd {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 3px;
    padding: 2px 6px;
    font-size: 10px;
    margin-right: 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: bold;
    color: var(--tr-accent);
}

.tr-ctrl-desktop { color: #FFF; }
.tr-ctrl-touch { color: var(--tr-muted); }

.tr-hud-objectives {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tr-obj-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--tr-muted);
    transition: color 0.2s;
}

.tr-obj-item.done {
    color: #FFF;
}

.tr-obj-check {
    color: var(--tr-accent);
    font-weight: bold;
    font-size: 14px;
    margin-top: -2px;
}

.tr-obj-item:not(.done) .tr-obj-check {
    color: var(--tr-muted);
}

.tr-hud-actions {
    display: flex;
    gap: 8px;
    margin-top: 4px;
    flex-wrap: wrap;
    order: -1;
    position: sticky;
    top: 0;
    z-index: 1;
    background: #0f1216;
    flex-shrink: 0;
}
.tr-hud-content > * { flex-shrink: 0; }
.tr-hud-actions .tr-btn { min-height: 44px; padding-inline: 8px; }

.tr-btn {
    background: rgba(255,255,255,0.1);
    color: var(--tr-text);
    border: 1px solid var(--tr-border-subtle);
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex: 1;
    text-align: center;
}

.tr-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.4);
}

.tr-btn.primary {
    background: var(--tr-accent);
    color: #000;
    border-color: var(--tr-accent);
}

.tr-btn.primary:hover {
    background: var(--tr-accent-hover);
}

.tr-hud-desktop-esc {
    font-size: 10px;
    color: var(--tr-muted);
    text-align: center;
    margin-top: 4px;
}

/* =========================================
   DRILL SELECTION DIALOG
========================================= */
#trainingDialog {
    background: var(--tr-panel);
    border: 1px solid var(--tr-border);
    border-radius: 8px;
    color: var(--tr-text);
    padding: 24px;
    width: 90vw;
    max-width: 500px;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    font-family: var(--tr-font);
}

#trainingDialog::backdrop {
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
}

.tr-dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--tr-border-subtle);
    padding-bottom: 12px;
}

.tr-dialog-header h3 {
    margin: 0;
    font-size: 16px;
    color: var(--tr-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 900;
}

.tr-dialog-close {
    background: none;
    border: none;
    color: var(--tr-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    padding: 0 8px;
}

.tr-dialog-close:hover {
    color: var(--tr-text);
}

.tr-drill-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 50vh;
    overflow-y: auto;
    overscroll-behavior: contain;
}

button.tr-drill-card {
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--tr-border-subtle);
    border-radius: 6px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    text-align: left;
    font-family: inherit;
    color: inherit;
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
}

button.tr-drill-card:hover {
    border-color: var(--tr-accent);
    background: rgba(255, 179, 0, 0.05);
}

button.tr-drill-card.active-drill {
    border-color: var(--tr-accent);
    background: rgba(255, 179, 0, 0.15);
}

button.tr-drill-card:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tr-drill-info {
    flex: 1;
    padding-right: 16px;
}

.tr-drill-info h4 {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: var(--tr-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 800;
}

.tr-drill-info p {
    margin: 0;
    font-size: 12px;
    color: var(--tr-muted);
    line-height: 1.4;
}

.tr-drill-status {
    font-size: 11px;
    font-weight: 800;
    color: var(--tr-accent);
    letter-spacing: 0.1em;
    white-space: nowrap;
}

/* =========================================
   COMMAND CENTER INJECTIONS
========================================= */
button.sidePick {
    font-family: inherit;
    color: inherit;
    display: block;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
}
button.sidePick:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: transparent;
}
button.sidePick .fn { display: block; }
button.sidePick .fd { display: block; }

#training-lobby-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tr-completed {
    font-size: 12px;
    color: var(--tr-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: bold;
    border-top: 1px solid var(--tr-border-subtle);
    padding-top: 16px;
    margin-top: 8px;
}

/* =========================================
   RESPONSIVE DESIGN
========================================= */
@media (max-height: 500px) {
    #trainingHud {
        top: var(--hud-training-top, max(env(safe-area-inset-top, 8px), 8px));
        left: var(--hud-training-left, max(env(safe-area-inset-left, 8px), 8px));
        width: var(--hud-training-width, 300px);
    }
    .tr-hud-content {
        max-height: var(--hud-training-content-h, calc(100dvh - 80px));
        padding: 12px;
        gap: 12px;
    }
    .tr-drill-list {
        max-height: 60vh;
    }
}