/* Custom Variable Configuration Architecture */
:root {
    --bg-dark-abyss: #08090f;
    --panel-glass: rgba(15, 18, 32, 0.82);
    --border-crystal: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(0, 238, 255, 0.25);
    --text-primary: #f0f2f5;
    --text-muted: #8a94a6;
    --accent-glow: #00f0ff;
    --fantasy-gold: #ffaa00;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Rarity Color Mappings */
    --rarity-common: #9da3af;
    --rarity-uncommon: #1eff00;
    --rarity-epic: #0070dd;
    --rarity-amazing: #a335ee;
    --rarity-legendary: #ff8000;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    -webkit-user-select: none;
    outline: none;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-dark-abyss);
    font-family: var(--font-stack);
    color: var(--text-primary);
}

#bg-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: radial-gradient(circle at 50% 50%, #12162b 0%, var(--bg-dark-abyss) 100%);
    pointer-events: none;
}

.screen {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 2;
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease-in-out;
}

.screen.active {
    display: flex;
    flex-direction: column;
    opacity: 1;
}

/* LOBBY STRUCTURES */
.lobby-header {
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
}

.user-summary-card {
    background: var(--panel-glass);
    border: 1px solid var(--border-crystal);
    padding: 10px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    backdrop-filter: blur(10px);
}

.avatar-ring {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--accent-glow);
    overflow: hidden;
}

.xp-bar-container {
    width: 150px;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    margin-top: 5px;
    position: relative;
}

.xp-bar-fill {
    height: 100%;
    background: var(--accent-glow);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
}

.currency-widget {
    display: flex;
    gap: 15px;
}

.currency-item {
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border-crystal);
    padding: 8px 16px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: bold;
}

.lobby-centerpiece {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 5;
}

.game-title {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 6px;
    background: linear-gradient(135deg, #ffffff 0%, #7688a4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(255,255,255,0.15));
}

.game-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-top: 5px;
    margin-bottom: 40px;
    text-transform: uppercase;
}

.action-core {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 320px;
}

#input-username {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-crystal);
    padding: 16px;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1.1rem;
    text-align: center;
    transition: border 0.3s;
}

#input-username:focus {
    border-color: var(--accent-glow);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #0055ff 0%, #00bbff 100%);
    border: none;
    color: white;
    padding: 16px;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 2px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 140, 255, 0.4);
    transition: transform 0.1s, filter 0.3s;
}

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* LOBBY SELECTION NAVIGATION NAVIGATION SYSTEMS */
.lobby-navigation {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 15px;
    padding: 30px 40px;
    z-index: 5;
}

.nav-card {
    background: var(--panel-glass);
    border: 1px solid var(--border-crystal);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.1);
}

.icon-svg {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    color: var(--text-muted);
    transition: color 0.3s;
}

.nav-card:hover .icon-svg {
    color: var(--accent-glow);
}

.nav-card span {
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.nav-card:hover span {
    color: var(--text-primary);
}

/* INTERFACE SLIDE PANEL MATRIX OVERLAYS */
#sub-panel-container {
    position: absolute;
    width: 500px;
    height: calc(100% - 40px);
    right: 20px;
    top: 20px;
    background: var(--panel-glass);
    border: 1px solid var(--border-crystal);
    backdrop-filter: blur(25px);
    border-radius: 16px;
    z-index: 100;
    padding: 25px;
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    transition: transform 0.4s cubic-bezier(0.1, 0.9, 0.2, 1);
}

#sub-panel-container.hidden {
    transform: translateX(550px);
}

.panel-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-crystal);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.close-square-btn {
    background: rgba(255,255,255,0.05);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

.close-square-btn:hover {
    background: rgba(255,0,0,0.2);
}

/* CONTENT CONTAINER INTERNALS */
#panel-content-injection-zone {
    flex: 1;
    overflow-y: auto;
    padding-right: 5px;
}

/* Custom Scrollbar Configuration Layout */
#panel-content-injection-zone::-webkit-scrollbar {
    width: 6px;
}
#panel-content-injection-zone::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

/* LIST MATRICES AND GRIDS FOR PANELS */
.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.shop-item-card, .skin-item-card {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-crystal);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    position: relative;
    transition: border 0.2s;
}

.shop-item-card:hover, .skin-item-card:hover {
    border-color: rgba(255,255,255,0.2);
}

.skin-preview-render-box {
    width: 70px;
    height: 70px;
}

.rarity-tag {
    font-size: 0.7rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-buy, .btn-equip {
    width: 100%;
    padding: 8px;
    border-radius: 6px;
    border: none;
    background: #1a1f38;
    color: white;
    font-weight: bold;
    font-size: 0.85rem;
    cursor: pointer;
}

.btn-buy.active-owned, .btn-equip.active-equipped {
    background: linear-gradient(135deg, #00aa50 0%, #00ff66 100%);
}

/* INGAME VIEW ENGINE HUD */
#primary-game-canvas {
    width: 100%;
    height: 100%;
    display: block;
    background-color: #030407;
}

#game-hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hud-top-left, .hud-top-right {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: rgba(3, 4, 7, 0.65);
    padding: 12px 20px;
    border-radius: 10px;
    border: 1px solid var(--border-crystal);
    backdrop-filter: blur(5px);
    pointer-events: auto;
}

.hud-top-left { position: absolute; top: 20px; left: 20px; }
.hud-top-right { position: absolute; top: 20px; right: 20px; }

.hud-metric {
    font-size: 1rem;
    letter-spacing: 1px;
    color: var(--text-muted);
}
.hud-metric strong {
    color: var(--text-primary);
}

/* SPIN THE WHEEL GRAPHIC ARCHITECTURE */
.wheel-container-frame {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
}

.wheel-view-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
}

.wheel-ticker-arrow {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 25px solid #ff0055;
    z-index: 10;
}

#lucky-wheel-canvas {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(0,0,0,0.6);
}

/* GLOBAL DIALOG OVERLAYS */
#global-modal-overlay {
    position: fixed;
    top:0; left:0; width:100%; height:100%;
    background: rgba(0,0,0,0.85);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.25s;
}
#global-modal-overlay.hidden { display: none; opacity: 0; }

.modal-card {
    background: #0f1220;
    border: 1px solid var(--border-highlight);
    border-radius: 12px;
    padding: 30px;
    width: 360px;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
}

.modal-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
    letter-spacing: 1px;
}

#modal-body {
    color: var(--text-muted);
    margin-bottom: 25px;
    font-size: 1rem;
    line-height: 1.5;
}

.btn-secondary {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    padding: 10px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); }

/* VIRTUAL MOBILE CONTROLLER SYSTEMS */
#virtual-joystick-zone {
    position: absolute;
    bottom: 40px;
    left: 40px;
    width: 140px;
    height: 140px;
    display: none; /* Auto displayed via Engine detection logic */
    pointer-events: auto;
}

#joystick-base {
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.03);
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    position: relative;
}

#joystick-stick {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.4) 0%, rgba(0, 85, 255, 0.4) 100%);
    border: 2px solid var(--accent-glow);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* GENERAL ASSISTING STYLE CLASSES */
.coin-gold { color: var(--fantasy-gold); }
.inline-svg { display: inline-block; vertical-align: middle; width: 18px; height: 18px; margin-right: 4px; }
.hidden { display: none !important; }
.text-glow { text-shadow: 0 0 10px var(--accent-glow); }
.font-gold { color: var(--fantasy-gold) !important; }

/* RESPONSIVE LAYOUT MATRIX GRAPHICS DEFINITION */
@media (max-width: 1024px) {
    .lobby-navigation { grid-template-columns: repeat(3, 1fr); padding: 15px; }
    #sub-panel-container { width: calc(100% - 40px); left: 20px; right: 20px; }
}

@media (max-width: 640px) {
    .lobby-header { padding: 15px; }
    .game-title { font-size: 2.6rem; }
    .lobby-navigation { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .user-summary-card { width: 140px; padding: 5px 10px; }
    .xp-bar-container { display: none; }
}