:root {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --accent-color: #4CAF50;
    --secondary-color: #2196F3;
    --error-color: #f44336;
    --focus-color: #81D4FA;
    --surface-color: #2d2d2d;
    --border-color: #444;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    display: flex;
    /* Centering for Login */
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

/* Utilities */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Login/Register Forms - Centered */
#login-screen,
#register-screen {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background-color: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    text-align: center;
}

h1,
h2 {
    color: var(--accent-color);
    margin-top: 0;
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

input,
textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: #3d3d3d;
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 4px;
    box-sizing: border-box;
}

input:focus,
textarea:focus {
    outline: 2px solid var(--focus-color);
    border-color: transparent;
}

button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 0.5rem;
}

button:hover {
    filter: brightness(1.1);
}

button.secondary-btn {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

button.secondary-btn:hover {
    background-color: rgba(76, 175, 80, 0.1);
}

/* Game Screen - Full Size */
#game-screen {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    padding: 0;
    /* Override body padding if any */
}

/* Header */
header {
    padding: 1rem;
    background-color: var(--surface-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    width: auto;
    min-width: 44px;
    height: 44px;
    padding: 0.5rem;
    font-size: 1.25rem;
    background-color: transparent;
    border: 1px solid var(--accent-color);
    margin: 0;
}

.icon-btn:hover {
    background-color: rgba(76, 175, 80, 0.2);
}

#game-title {
    margin: 0;
    font-size: 1.25rem;
}

/* Tabs */
.tabs {
    display: flex;
    background-color: #222;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: #888;
    padding: 1rem;
    margin: 0;
    border-radius: 0;
}

.tab-btn:hover {
    background-color: #333;
    color: #ddd;
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    font-weight: bold;
}

/* Main Content Area */
main {
    flex: 1;
    overflow: hidden;
    /* Scroll inside tabs */
    position: relative;
    display: flex;
    flex-direction: column;
}

.tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    overflow-y: auto;
    height: 100%;
    box-sizing: border-box;
}

/* Menu Tab */
#menu-area {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.menu-item {
    text-align: left;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
}

/* Chat & History Logs */
.log-container {
    flex: 1;
    overflow-y: auto;
    background-color: #000;
    border: 1px solid #333;
    padding: 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    font-family: monospace;
    font-size: 0.9rem;
}

.log-entry {
    margin-bottom: 0.25rem;
    border-bottom: 1px solid #222;
    padding-bottom: 0.25rem;
}

.log-time {
    color: #888;
    margin-right: 0.5rem;
}

.log-sender {
    font-weight: bold;
    margin-right: 0.25rem;
}

.log-channel-global {
    color: #00ffff;
    /* Cyan */
}

.log-channel-table {
    color: #00ff00;
    /* Green */
}

.log-channel-system {
    color: #ff00ff;
    /* Magenta */
}

/* Chat Input */
#chat-form {
    display: flex;
    gap: 0.5rem;
}

#chat-form input {
    flex: 1;
}

/* Mobile Responsive */
@media (max-width: 600px) {

    #login-screen,
    #register-screen {
        max-width: 90%;
        padding: 1rem;
    }

    header {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .tabs {
        flex-wrap: wrap;
    }

    .tab-btn {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .form-actions {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    button {
        padding: 1rem;
        /* Larger touch target */
    }

    .menu-item {
        padding: 1rem;
        /* Larger touch target */
        margin-bottom: 0.5rem;
    }
}

/* Ensure full height on mobile browsers with UI bars */
@supports (-webkit-touch-callout: none) {

    body,
    #game-screen {
        height: -webkit-fill-available;
    }
}

/* Players Tab Styling */
.player-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.player-actions button {
    flex: 1;
    min-width: 180px;
    margin-top: 0;
}

#player-list-area {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background: var(--surface-color);
    height: 300px;
    overflow-y: auto;
}

#player-list-area p {
    margin: 5px 0;
    color: var(--text-color);
}

/* Settings Styles */
.settings-group {
    background-color: var(--surface-color);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.settings-group h3 {
    margin-top: 0;
    color: var(--secondary-color);
    border-bottom: 1px solid #444;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.slider-container {
    margin-bottom: 1.5rem;
}

/* Custom Range Slider */
input[type=range] {
    width: 100%;
    margin: 0.5rem 0;
    background: transparent;
    -webkit-appearance: none;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 8px;
    cursor: pointer;
    background: #444;
    border-radius: 4px;
}

input[type=range]::-webkit-slider-thumb {
    height: 24px;
    width: 24px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -8px;
    /* Centers thumb on track */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

input[type=range]::-moz-range-thumb {
    height: 24px;
    width: 24px;
    border: none;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.danger-btn {
    background-color: var(--error-color);
    margin-top: 1rem;
}

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

.network-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}