/* Modern HUD Layout System */
/* Inspired by game UI design patterns and modern web layouts */

/* CSS Custom Properties for theming and consistency */
:root {
    --hud-bg-primary: rgba(0, 0, 0, 0.85);
    --hud-bg-secondary: rgba(0, 0, 0, 0.9);
    --hud-border-primary: #00ff88;
    --hud-border-secondary: #4a90e2;
    --hud-text-primary: #ffffff;
    --hud-text-secondary: #cccccc;
    --hud-text-accent: #ff6b35;
    --hud-spacing-xs: 8px;
    --hud-spacing-sm: 12px;
    --hud-spacing-md: 16px;
    --hud-spacing-lg: 20px;
    --hud-spacing-xl: 24px;
    --hud-border-radius: 8px;
    --hud-backdrop-blur: blur(10px);
    --hud-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main HUD Grid Container */
.hud-layout {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: minmax(280px, 320px) 1fr minmax(250px, 300px);
    grid-template-rows: 1fr;
    grid-template-areas: "critical main contextual";
    pointer-events: none;
    z-index: 1000;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    gap: var(--hud-spacing-md);
    padding: var(--hud-spacing-lg);
    box-sizing: border-box;
}

/* Critical Panel (Left - Always Visible) */
.critical-panel {
    grid-area: critical;
    display: flex;
    flex-direction: column;
    gap: var(--hud-spacing-md);
    pointer-events: auto;
}

.hud-section {
    background: var(--hud-bg-primary);
    border: 2px solid var(--hud-border-primary);
    border-radius: var(--hud-border-radius);
    backdrop-filter: var(--hud-backdrop-blur);
    padding: var(--hud-spacing-md);
    transition: var(--hud-transition);
}

.hud-section:hover {
    border-color: var(--hud-border-secondary);
    background: var(--hud-bg-secondary);
}

/* Main Viewport (Center) */
.main-viewport {
    grid-area: main;
    position: relative;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Contextual Panel (Right) - Fixed stacking issues */
.contextual-panel {
    grid-area: contextual;
    display: flex;
    flex-direction: column;
    gap: var(--hud-spacing-md);
    pointer-events: none;
    align-items: stretch;
    justify-content: flex-start;
    overflow: visible;
}

/* Contextual Panel Sections */
.contextual-section {
    pointer-events: auto;
    background: var(--hud-bg-primary);
    border: 1px solid var(--hud-border-secondary);
    border-radius: var(--hud-border-radius);
    backdrop-filter: var(--hud-backdrop-blur);
    padding: var(--hud-spacing-sm);
    transition: var(--hud-transition);
    position: relative;
    z-index: auto;
    min-height: 0;
    flex-shrink: 0;
}

.contextual-section:hover {
    border-color: var(--hud-border-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.2);
}

/* Status indicators */
.status-indicator {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--hud-spacing-xs);
}

.status-indicator:last-child {
    margin-bottom: 0;
}

.status-label {
    color: var(--hud-text-secondary);
    font-size: 11px;
    font-weight: 500;
}

.status-value {
    color: var(--hud-text-primary);
    font-size: 11px;
    font-weight: bold;
}

/* Section headers */
.section-header {
    color: var(--hud-border-secondary);
    font-size: 10px;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: var(--hud-spacing-xs);
    letter-spacing: 0.5px;
}

/* Button styles */
.hud-button {
    background: linear-gradient(135deg, var(--hud-border-secondary), #0066cc);
    border: none;
    color: var(--hud-text-primary);
    padding: var(--hud-spacing-sm);
    border-radius: var(--hud-border-radius);
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
    transition: var(--hud-transition);
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--hud-spacing-xs);
    min-height: 44px;
}

.hud-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 158, 255, 0.4);
}

.hud-button.active {
    background: linear-gradient(135deg, var(--hud-text-accent), #e55a2b);
}

/* Educational overlay */
.educational-overlay {
    position: fixed;
    top: var(--hud-spacing-lg);
    right: var(--hud-spacing-lg);
    width: 400px;
    max-width: calc(100vw - 40px);
    background: var(--hud-bg-secondary);
    border: 2px solid var(--hud-border-secondary);
    border-radius: var(--hud-border-radius);
    color: var(--hud-text-primary);
    z-index: 1500;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    backdrop-filter: var(--hud-backdrop-blur);
    transform: translateX(100%);
    opacity: 0;
    transition: var(--hud-transition);
    pointer-events: none;
}

.educational-overlay.visible {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hud-layout {
        grid-template-columns: 260px 1fr 240px;
    }
}

@media (max-width: 1024px) {
    .hud-layout {
        grid-template-columns: 240px 1fr 220px;
        gap: var(--hud-spacing-sm);
        padding: var(--hud-spacing-sm);
    }
}

@media (max-width: 768px) {
    .hud-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
        grid-template-areas:
            "critical"
            "main"
            "contextual";
        gap: var(--hud-spacing-xs);
        padding: var(--hud-spacing-xs);
    }
    
    .critical-panel,
    .contextual-panel {
        flex-direction: row;
        overflow-x: auto;
        gap: var(--hud-spacing-sm);
    }
    
    .hud-section,
    .contextual-section {
        min-width: 200px;
        flex-shrink: 0;
    }
}

/* Animation utilities */
@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.animate-slide-in-right {
    animation: slideInFromRight 0.3s ease-out;
}

.animate-slide-in-left {
    animation: slideInFromLeft 0.3s ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp 0.3s ease-out;
}