* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-background-dark: #1a1a1a;
    --color-background-medium: #2a2a2a;
    --color-text-light: #e0e0e0;
    --color-neon-cyan: #00ffff;
    --color-neon-magenta: #ff00ff;
    --color-border-light: #444;
    --color-essence-gray: #9E9E9E; /* Gray */
    --color-essence-green: #4CAF50; /* Green */
    --color-essence-blue: #2196F3; /* Blue */
    --color-essence-purple: #9C27B0; /* Purple */
    --color-essence-orange: #FF9800; /* Orange */
    --color-essence-gold: #FFEB3B; /* Gold */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--color-background-dark);
    color: var(--color-text-light);
    overflow: hidden;
}

#top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 40px; /* Reducido de 65px a 40px */
    background-color: var(--color-background-medium);
    border-bottom: 2px solid var(--color-border-light);
    padding: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px; /* Reducido de 30px para mayor compacidad */
    z-index: 100;
    box-sizing: border-box;
}
#top-bar > div {
    white-space: nowrap;
}
#top-bar #hud-essences {
    display: flex;
    align-items: center;
    gap: 7px; /* Más compacto que 10px */
}

#game-container {
    display: flex;
    width: 100vw;
    min-height: 100vh;
    padding: 10px;
    padding-top: 50px; /* Reducido de 75px a 50px */
    box-sizing: border-box;
}

#game-canvas {
    border: 2px solid var(--color-neon-cyan);
    background-color: #000;
    flex-shrink: 1;
}

#ui-panel {
    width: 350px;
    height: calc(100vh - 50px - 10px); /* Ajustado para coincidir con el nuevo padding-top */
    margin-left: 10px;
    background-color: var(--color-background-medium);
    border: 1px solid var(--color-border-light);
    padding: 10px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
}

#hud-top {
    margin-bottom: 15px;
}

#hud-core-stats,
#hud-essences {
    /* Sin fondo, borde ni padding de recuadro */
}

#hud-core-stats {
    display: flex;
    gap: 5px 10px; /* Más compacto que 5px 15px */
    font-size: 0.88em; /* Ligeramente más pequeño */
    align-items: center;
}
#hud-core-stats .label {
    opacity: 0.8;
}
#hud-core-stats .value {
    font-weight: bold;
    color: var(--color-neon-cyan);
}

/* Contenedor Principal de Recursos */
#hud-resources {
    background-color: var(--color-background-dark);
    border: 1px solid var(--color-border-light);
    padding: 8px 10px;
    border-radius: 3px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start;
}

/* Estilo para cada COLUMNA (Minerales y Maderas) */
.resource-category-container {
    flex: 1;
}

#hud-minerals-container::before,
#hud-wood-container::before {
    content: "";
    display: none;
}

/* Estilo para cada LÍNEA de recurso dentro de una columna */
.resource-display {
    display: block;
    margin-bottom: 4px;
    font-size: 0.82em; /* Reducido para ahorrar espacio */
    white-space: nowrap;
}

.resource-idle-rate {
    color: #888888;
    margin-right: 5px;
    font-size: 0.9em;
}
.resource-idle-rate.generating {
    color: var(--color-neon-cyan);
}

.resource-name {
    opacity: 0.9;
    margin-right: 3px;
}

.resource-value {
    font-weight: bold;
    color: var(--color-text-light);
}

#hud-essences {
    /* Mantener display:block para .essence-label y flex para .essence-icons-container */
}

#hud-essences .essence-label {
    opacity: 0.8;
    font-size: 0.88em; /* Ligeramente más pequeño */
}

#hud-essences .essence-icons-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 10px; /* Más compacto */
    align-items: center;
}

.essence-display {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.essence-rhombus {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    transform: rotate(45deg);
    margin-right: 3px;
}
.essence-rhombus.essence-Gray { background-color: var(--color-essence-gray); }
.essence-rhombus.essence-Green { background-color: var(--color-essence-green); }
.essence-rhombus.essence-Blue { background-color: var(--color-essence-blue); }
.essence-rhombus.essence-Purple { background-color: var(--color-essence-purple); }
.essence-rhombus.essence-Orange { background-color: var(--color-essence-orange); }
.essence-rhombus.essence-Gold { background-color: var(--color-essence-gold); }
.essence-value {
    font-weight: bold;
    font-size: 0.92em; /* Ligeramente más pequeño */
}

#building-tabs {
    display: flex;
    margin-bottom: 5px;
    border-bottom: 2px solid var(--color-border-light);
}

.tab-button {
    padding: 5px 10px;
    border: 1px solid transparent;
    border-bottom: none;
    background-color: transparent;
    color: var(--color-text-light);
    cursor: pointer;
    font-size: 0.9em;
    opacity: 0.7;
    transition: background-color 0.2s, opacity 0.2s, border-color 0.2s;
}
.tab-button:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.1);
}
.tab-button.active {
    opacity: 1;
    font-weight: bold;
    border-color: var(--color-border-light);
    border-bottom: none;
    background-color: var(--color-background-dark);
    position: relative;
    top: 1px;
    color: var(--color-neon-cyan);
}

#building-panel {
    flex-grow: 1;
    background-color: var(--color-background-dark);
    border: 1px solid var(--color-border-light);
    border-top: none;
    padding: 8px;
    overflow-y: auto;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 5px 10px;
    background-color: var(--color-background-medium);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.8em;
    text-align: center;
    z-index: 10;
}

.collect-area {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 15px;
    margin-bottom: 5px;
}

.collect-icon {
    width: 100px;
    height: 100px;
    background-color: var(--color-background-medium);
    border: 2px solid var(--color-neon-cyan);
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    text-align: center;
    font-size: 1.1em;
    font-weight: bold;
    color: var(--color-text-light);
    position: relative;
    transition: transform 0.1s ease, background-color 0.2s ease;
    user-select: none;
}

.collect-icon:hover {
    background-color: #3a3a3a;
}

.collect-icon:active {
    transform: scale(0.95);
    background-color: #444;
}

.click-progress {
    position: absolute;
    bottom: 5px;
    left: 0;
    right: 0;
    font-size: 0.8em;
    font-weight: normal;
    color: var(--color-text-light);
    opacity: 0.8;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 2px 0;
    border-radius: 0 0 3px 3px;
}

#turret-info-popup {
    position: absolute;
    min-width: 180px;
    background-color: rgba(42, 42, 42, 0.95);
    border: 1px solid var(--color-neon-cyan);
    border-radius: 5px;
    padding: 10px 12px;
    color: var(--color-text-light);
    font-size: 0.85em;
    z-index: 200;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
    transform: scale(1);
}
#turret-info-popup.hidden {
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
}
#turret-info-popup h4 {
    margin: 0 0 8px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-neon-cyan);
    font-size: 1.1em;
}
#turret-info-popup p {
    margin: 3px 0;
    line-height: 1.4;
}
#turret-info-popup strong {
    color: #FFFFFF;
    margin-left: 5px;
}
#turret-info-popup ul {
    list-style: none;
    padding: 0;
    margin: 5px 0 0 0;
}
#turret-info-popup li {
    margin-bottom: 2px;
    font-style: italic;
    opacity: 0.9;
}

/* Estilos para el Panel de Academia */

#academy-panel {
    padding: 15px;
    /* Heredará el fondo oscuro y color de texto base del contenedor de paneles */
}

#academy-panel h2 {
    color: #00ffff;
    text-align: center;
    margin-bottom: 10px;
    border-bottom: 1px solid #00ffff;
    padding-bottom: 5px;
}

#academy-panel p {
    font-size: 0.9em;
    color: #cccccc;
    margin-bottom: 15px;
    text-align: center;
}

.academy-sp-display {
    background-color: rgba(0, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 8px 12px;
    margin-bottom: 15px;
    border-radius: 4px;
    text-align: center;
}

.academy-sp-display span {
     color: #e0e0e0;
}

#academy-sp-value {
    font-weight: bold;
    color: #00ff00;
    margin-left: 5px;
}

#academy-panel hr {
    border: none;
    border-top: 1px dashed rgba(255, 255, 255, 0.3);
    margin-top: 15px;
    margin-bottom: 15px;
}

#academy-upgrades-container {
    margin-top: 10px;
}

#academy-upgrades-container h3 {
    color: #00ffff;
    margin-bottom: 10px;
    font-size: 1.1em;
    text-align: center;
}

/* Estilos para la Lista de Mejoras de Academia */

#academy-upgrades-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
}

.academy-upgrade-item {
    background-color: rgba(40, 40, 40, 0.7);
    border: 1px solid var(--color-border-light);
    border-left: 3px solid var(--color-neon-cyan);
    padding: 10px 12px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.academy-upgrade-item.max-level {
    border-left-color: var(--color-neon-magenta);
    opacity: 0.7;
}

.upgrade-name-level {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 5px;
}

.upgrade-name {
    font-weight: bold;
    color: var(--color-text-light);
    font-size: 1.05em;
}

.upgrade-level {
    font-size: 0.85em;
    color: #bbbbbb;
}

.upgrade-description {
    font-size: 0.88em;
    color: #cccccc;
    margin-bottom: 8px;
    line-height: 1.3;
}

.upgrade-effect {
    font-size: 0.9em;
    color: #e0e0e0;
    margin-bottom: 10px;
}

.upgrade-effect strong {
    color: var(--color-neon-cyan);
    margin-left: 4px;
}

.upgrade-cost-button {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.upgrade-cost {
    font-size: 0.9em;
    color: #dddddd;
}

.upgrade-purchase-button {
    padding: 4px 10px;
    font-size: 0.9em;
    background-color: var(--color-neon-cyan);
    color: var(--color-background-dark);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.upgrade-purchase-button:hover:not(:disabled) {
    background-color: #00dddd;
}

.upgrade-purchase-button:active:not(:disabled) {
    transform: scale(0.95);
}

.upgrade-purchase-button:disabled {
    background-color: #555555;
    color: #999999;
    cursor: not-allowed;
    opacity: 0.6;
}

.upgrade-max-level-text {
    font-size: 0.9em;
    font-style: italic;
    color: var(--color-neon-magenta);
    text-align: center;
    margin-top: 10px;
    opacity: 0.9;
}

#game-speed-control {
    padding: 5px 10px;
    border: 1px solid var(--color-border-light);
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.2s;
    user-select: none;
    min-width: 60px;
    text-align: center;
}

#game-speed-control:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-neon-cyan);
}

#game-speed-control:active {
    background-color: rgba(0, 255, 255, 0.2);
}

#game-speed-value {
    font-weight: bold;
    color: var(--color-text-light);
    font-size: 0.9em;
}

/* --- Reincarnation Screen Styles --- */

#reincarnation-screen {
    position: fixed; /* O absolute si prefieres */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85); /* Overlay oscuro */
    display: flex; /* Usar flex para centrar el contenido */
    justify-content: center;
    align-items: center;
    z-index: 500; /* Asegurar que esté por encima de otros elementos */
    opacity: 0; /* Empezar invisible para transición */
    pointer-events: none; /* No interactuable cuando está oculto */
    transition: opacity 0.3s ease-in-out;
}

#reincarnation-screen.visible {
    opacity: 1;
    pointer-events: auto; /* Hacer interactuable cuando es visible */
}

/* Clase 'hidden' para ocultar inicialmente (alternativa a opacity 0) */
/* Si prefieres usar display: none/flex: */
/*
#reincarnation-screen.hidden {
    display: none;
}
#reincarnation-screen.visible {
     display: flex;
}
*/

#reincarnation-content {
    background-color: var(--color-background-medium);
    padding: 30px 40px;
    border: 2px solid var(--color-neon-magenta); /* Borde magenta para destacar */
    border-radius: 8px;
    text-align: center;
    min-width: 350px;
    box-shadow: 0 0 25px rgba(255, 0, 255, 0.4);
}

#reincarnation-content h2 {
    color: var(--color-neon-magenta);
    margin-bottom: 20px;
    font-size: 1.8em;
}
#reincarnation-stats .stats-divider {
    border: none;
    border-top: 1px dashed rgba(255, 255, 255, 0.4);
    margin: 15px 0;
}
#reincarnation-stats {
    margin-bottom: 25px;
    font-size: 1.1em;
    color: var(--color-text-light);
}

#reincarnation-stats p {
    margin-bottom: 8px;
}

#reincarnation-stats strong {
    color: var(--color-neon-cyan); /* O amarillo/dorado */
    margin-left: 5px;
}

#reincarnation-button {
    padding: 12px 25px;
    font-size: 1.1em;
    font-weight: bold;
    background-color: var(--color-neon-magenta);
    color: var(--color-background-dark);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

#reincarnation-button:hover {
    background-color: #ff33ff;
}

#reincarnation-button:active {
    transform: scale(0.96);
}

/* --- Fin Reincarnation Screen Styles --- */