/* --- Global Design System --- */

:root {
    --primary-color: #3B5998;
    --primary-hover: #4C70BA;
    --danger-color: #ff4d4d;
    --panel-bg: rgba(45, 45, 45, 0.8);
    --frosted-bg: rgba(255, 255, 255, 0.1);
    --border-color: #4A4A4A;
    --text-color: #E0E0E0;
    --glass-blur: 15px;
}

/* Layout Containers */
.screen-root {
    flex-grow: 1;
    width: 100%;
    height: 100%;
    background-color: rgba(20, 20, 20, 0.95);
    padding: 0;
    justify-content: flex-start;
    align-items: stretch;
    transition-property: opacity, scale;
    transition-duration: 0.3s;
    transition-timing-function: ease-in-out;
    opacity: 1;
    scale: 1;
}

.screen-root.hidden {
    opacity: 0;
    scale: 0.95;
    display: none;
}

/* Diagonal Split-Screen Container */
.diagonal-container {
    flex-grow: 1;
    flex-direction: row;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.left-pane {
    width: 60%;
    background-color: transparent;
}

.right-pane-wrapper {
    width: 45%; /* Slightly larger to account for the skew overlap */
    margin-left: -5%;
    transform: skewX(-15deg);
    background-color: var(--frosted-bg);
    border-left-width: 4px;
    border-left-color: white;
    overflow: hidden;
}

.right-pane-content {
    flex-grow: 1;
    transform: skewX(15deg); /* Counter-skew content */
    padding: 60px 40px;
    background-color: rgba(0, 0, 0, 0.4); /* Darken for readability */
}

/* Modal Overlay Backdrop */
.modal-backdrop {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    padding: 100px;
}

.modal-panel {
    background-color: var(--panel-bg);
    border-width: 2px;
    border-color: var(--border-color);
    border-radius: 20px;
    padding: 30px;
    min-width: 600px;
    min-height: 400px;
}

/* Osu-Style Slanted Button */
.slanted-button {
    background-color: var(--primary-color);
    padding: 0;
    margin: 8px;
    border-radius: 0;
    border-width: 0;
    transform: skewX(-20deg);
    transition-duration: 0.1s;
    overflow: hidden;
}

.slanted-button-inner {
    flex-grow: 1;
    padding: 12px 30px;
    transform: skewX(20deg); /* Counter-skew text */
    -unity-text-align: middle-center;
    color: white;
    font-size: 20px;
    -unity-font-style: bold;
}

/* Cursorless Focus System */
.slanted-button.hover {
    background-color: var(--primary-hover);
    scale: 1.15;
    rotate: -2deg;
    border-width: 2px;
    border-color: white;
    transition-duration: 0.15s;
}

.slanted-button.hover .slanted-button-inner {
    color: #FFD700; /* Golden text on hover */
}

/* HUD Components */
.hud-bar-container {
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 5px;
}

.hud-bar-fill {
    height: 100%;
    transition-property: width;
    transition-duration: 0.2s;
}

/* Typography */
.header-text {
    font-size: 64px;
    color: var(--text-color);
    -unity-font-style: bold;
    margin-bottom: 30px;
    -unity-text-align: middle-center;
}

.tab-button {
    flex-grow: 1;
    background-color: rgba(60, 60, 60, 0.5);
    padding: 15px;
    color: #888;
    margin-right: 5px;
    border-radius: 10px 10px 0 0;
}

.tab-button.active-tab {
    background-color: var(--primary-color);
    color: white;
}