@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700&family=Roboto:wght@300;400;500&display=swap');

:root {
    --primary-color: #121212;
    --secondary-color: #303030;
    --accent-color: #505050;
    --text-color: #e0e0e0;
    --highlight-color: #ffffff;
    --ui-background: rgba(18, 18, 18, 0.75);
    --ui-background-dark: rgba(12, 12, 12, 0.85);
    --ui-border: 1px solid rgba(80, 80, 80, 0.4);
    --ui-radius: 8px;
    --btn-gradient: linear-gradient(145deg, #252525, #404040);
    --btn-gradient-hover: linear-gradient(145deg, #404040, #505050);
    --btn-gradient-active: linear-gradient(145deg, #202020, #353535);
    --main-menu-bg: linear-gradient(135deg, rgba(10, 10, 10, 0.001), rgba(20, 20, 20, 0.001));
    --transition-slow: all 0.7s cubic-bezier(0.19, 1, 0.22, 1);
    --transition-medium: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    --transition-fast: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
    --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 15px rgba(100, 100, 100, 0.2);
    --shadow-sharp: 0 2px 4px rgba(0, 0, 0, 0.4);
    --text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: #000;
    color: var(--text-color);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    position: relative;
}

#scene-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#ui-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
    transition: var(--transition-medium);
    opacity: 1;
    transform: translateY(0);
}

#ui-container > * {
    pointer-events: auto;
}

#main-menu {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 20;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--main-menu-bg);
    opacity: 1;
    transition: var(--transition-slow);
    backdrop-filter: blur(1px);
}

#main-menu.hidden {
    opacity: 0;
    pointer-events: none;
}

#main-menu .title {
    font-size: 5rem;
    margin-bottom: 3rem;
    color: var(--highlight-color);
    text-shadow: var(--text-shadow), 0 0 30px rgba(255, 255, 255, 0.4);
    letter-spacing: 6px;
    font-weight: 700;
    transform: scale(1);
    animation: titlePulse 4s infinite alternate cubic-bezier(0.19, 1, 0.22, 1);
}

#main-menu .buttons {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 320px;
}

#main-menu button {
    padding: 16px 30px;
    font-size: 1rem;
    background: var(--btn-gradient);
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: var(--shadow-sharp);
    border: 1px solid rgba(80, 80, 80, 0.2);
    border-radius: var(--ui-radius);
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    white-space: nowrap;
    width: 100%;
}

#reset-system-menu {
    position: fixed !important;
    bottom: 40px;
    left: 42%;
    transform: translateX(-0%);
    width: 200px !important;
    padding: 12px 24px !important;
    font-size: 0.9rem !important;
    opacity: 0.75;
    background: linear-gradient(145deg, rgba(25, 25, 25, 0.8), rgba(40, 40, 40, 0.8)) !important;
    letter-spacing: 1px;
}

#reset-system-menu:hover {
    opacity: 1;
    transform: translateX(-0%) translateY(5px);
    background: var(--btn-gradient-hover) !important;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 255, 255, 0.1);
    letter-spacing: 2px;
}

#reset-system-menu:active {
    transform: translateX(-0%) translateY(2px);
    background: var(--btn-gradient-active) !important;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.1s ease;
}

#main-menu button.small-button {
    padding: 12px 20px;
    font-size: 0.85rem;
    margin-top: 1rem;
    opacity: 0.8;
    background: linear-gradient(145deg, rgba(25, 25, 25, 0.8), rgba(40, 40, 40, 0.8));
}

#main-menu button.small-button:hover {
    opacity: 1;
    transform: translateY(-3px) scale(1.01);
}

#main-menu button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

#main-menu button:hover {
    background: var(--btn-gradient-hover);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 255, 255, 0.1);
    color: white;
    letter-spacing: 3px;
}

#main-menu button:hover::after {
    transform: translateX(100%);
}

#main-menu button:active {
    background: var(--btn-gradient-active);
    transform: translateY(0);
    box-shadow: var(--shadow-sharp);
    transition: all 0.1s ease;
}

header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 12px 15px;
    background: var(--ui-background);
    backdrop-filter: blur(8px);
    border-bottom: var(--ui-border);
    transition: var(--transition-medium);
    transform-origin: top;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.header-content h1 {
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 1.3rem;
    text-shadow: var(--text-shadow);
}

.controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.control-buttons {
    display: flex;
    gap: 8px;
}

.control-buttons button, 
.time-controls button {
    padding: 6px 12px;
    font-size: 11px;
    background: rgba(40, 40, 40, 0.7);
    border: 1px solid rgba(100, 100, 100, 0.3);
}

.time-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.time-slider-container {
    background: var(--ui-background-dark);
    border: var(--ui-border);
    border-radius: var(--ui-radius);
    padding: 8px 12px;
    width: 300px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.2);
}

.time-slider-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-color);
    margin-bottom: 4px;
    opacity: 0.8;
}

.time-slider-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.time-value-display {
    background: rgba(40, 40, 40, 0.6);
    padding: 2px 8px;
    border-radius: 4px;
    min-width: 50px;
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    border: 1px solid rgba(100, 100, 100, 0.2);
}

#time-speed {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    min-width: 180px;
}

#time-speed::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--highlight-color);
    cursor: pointer;
    transition: var(--transition-fast);
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 3px rgba(0,0,0,0.3);
}

#time-speed::-webkit-slider-thumb:hover {
    background: white;
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

#time-speed::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: 2px;
    cursor: pointer;
}

@media (max-width: 768px) {
    header {
        padding: 8px 10px;
    }
    
    header h1 {
        font-size: 1.2rem;
    }
    
    .controls {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .time-controls {
        flex-wrap: wrap;
    }
    
    .time-slider-container {
        width: 250px;
    }
    
    .time-value-display {
        min-width: 40px;
        font-size: 0.8rem;
    }
    
    .panel {
        width: 95%;
    }
    
    #planet-info {
        width: 90%;
        top: 80px;
    }
    
    #main-menu .title {
        font-size: 2.5rem;
        text-align: center;
        padding: 0 20px;
    }
    
    #toggle-ui-container {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1rem;
    }
    
    .controls {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .control-buttons, .time-controls {
        width: 100%;
    }
    
    .time-controls {
        flex-direction: row;
        width: auto;
    }
    
    .time-slider-container {
        width: 200px;
    }
    
    #main-menu .title {
        font-size: 2rem;
    }
    
    #planet-info {
        width: 100%;
        border-radius: 0;
    }
    
    .tab-button {
        font-size: 10px;
        padding: 8px 5px;
    }
}

h1, h2, h3 {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--highlight-color);
    text-shadow: 0 0 10px rgba(255, 200, 87, 0.5);
    transition: var(--transition-fast);
}

button {
    background: var(--btn-gradient);
    color: var(--text-color);
    border: none;
    padding: 8px 14px;
    border-radius: var(--ui-radius);
    font-family: 'Orbitron', sans-serif;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.19, 1, 0.22, 1);
    outline: none;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sharp);
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(80, 80, 80, 0.2);
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: transform 0.6s ease;
}

button:hover::before {
    transform: translateX(200%);
}

button:hover {
    background: var(--btn-gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0,0,0,0.3), 0 0 5px rgba(255,255,255,0.1);
    color: white;
}

button:active {
    transform: translateY(0);
    background: var(--btn-gradient-active);
    box-shadow: 0 2px 3px rgba(0,0,0,0.3);
    transition: all 0.1s ease;
}

#menu-button {
    position: absolute;
    top: 55px;
    left: 20px;
    width: 35px;
    height: 30px;
    cursor: pointer;
    z-index: 100;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-fast);
    padding: 5px;
    background: var(--ui-background-dark);
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

#menu-button span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: var(--transition-medium);
}

#menu-button:hover span {
    background-color: var(--highlight-color);
    box-shadow: 0 0 5px rgba(255, 200, 87, 0.5);
}

#menu-button.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

#menu-button.active span:nth-child(2) {
    opacity: 0;
}

#menu-button.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

#planet-menu {
    position: absolute;
    top: 90px;
    left: -300px;
    width: 250px;
    background: rgba(18, 18, 18, 0.85);
    backdrop-filter: blur(8px);
    border-right: var(--ui-border);
    border-bottom: var(--ui-border);
    border-top: var(--ui-border);
    border-radius: 0 var(--ui-radius) var(--ui-radius) 0;
    padding: 20px;
    transition: var(--transition-slow);
    height: calc(100vh - 110px);
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 5px 0 20px rgba(0,0,0,0.3);
}

#planet-menu.active {
    left: 0;
}

#planet-menu h2 {
    margin-bottom: 20px;
    color: var(--highlight-color);
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(100, 100, 100, 0.2);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1.1rem;
    text-shadow: var(--text-shadow);
}

#planet-menu ul {
    list-style: none;
}

#planet-menu li {
    padding: 12px 15px;
    border-radius: var(--ui-radius);
    margin-bottom: 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    font-family: 'Orbitron', sans-serif;
    background: linear-gradient(to right, rgba(25, 25, 25, 0.6), rgba(35, 35, 35, 0.6));
    border: 1px solid rgba(60, 60, 60, 0.2);
    letter-spacing: 1px;
}

#planet-menu li::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(to right, var(--highlight-color), transparent);
    transition: width 0.3s ease;
}

#planet-menu li:hover {
    background: linear-gradient(to right, rgba(40, 40, 40, 0.8), rgba(50, 50, 50, 0.8));
    color: var(--highlight-color);
    transform: translateX(8px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.3);
    border: 1px solid rgba(100, 100, 100, 0.4);
}

#planet-menu li:hover::after {
    width: 100%;
}

#planet-menu li.active {
    background: linear-gradient(to right, rgba(50, 50, 50, 0.9), rgba(60, 60, 60, 0.9));
    color: white;
    border: 1px solid rgba(120, 120, 120, 0.3);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

#planet-info {
    position: absolute;
    top: 90px;
    right: -500px;
    width: 400px;
    background: var(--ui-background);
    backdrop-filter: blur(10px);
    border-left: var(--ui-border);
    border-bottom: var(--ui-border);
    border-top: var(--ui-border);
    border-radius: var(--ui-radius) 0 0 var(--ui-radius);
    padding: 25px;
    transition: var(--transition-slow);
    height: calc(100vh - 110px);
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: -5px 0 20px rgba(0,0,0,0.3);
}

#planet-info.active {
    right: 0;
}

.close-button {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition-fast);
    border-radius: 50%;
    background: rgba(0,0,0,0.2);
}

.close-button:hover {
    background: var(--accent-color);
    color: var(--highlight-color);
    box-shadow: 0 0 10px rgba(18, 130, 162, 0.5);
}

#planet-name {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--highlight-color);
    text-align: center;
    text-shadow: var(--text-shadow);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.tabs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
    border-bottom: var(--ui-border);
    position: relative;
}

.tab-button {
    background: transparent;
    flex: 1;
    padding: 10px 5px;
    font-size: 10px;
    font-family: 'Roboto', sans-serif;
    border-radius: 5px 5px 0 0;
    box-shadow: none;
    letter-spacing: 1px;
    border: none;
}

.tab-button:hover {
    background: rgba(40, 40, 40, 0.5);
    transform: none;
    box-shadow: none;
}

.tab-button.active {
    color: var(--highlight-color);
    box-shadow: none;
    background: transparent;
    font-weight: 500;
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 25%;
    height: 1px;
    background: linear-gradient(to right, var(--highlight-color), transparent);
    transition: var(--transition-medium);
    transform: translateX(calc(100% * var(--tab-index, 0)));
}

.tab-button[data-tab="overview"].active ~ .tab-button.active::after {
    --tab-index: 0;
}

.tab-button[data-tab="physical"].active ~ .tab-button.active::after {
    --tab-index: 1;
}

.tab-button[data-tab="orbit"].active ~ .tab-button.active::after {
    --tab-index: 2;
}

.tab-button[data-tab="atmosphere"].active ~ .tab-button.active::after {
    --tab-index: 3;
}

#tab-content {
    line-height: 1.6;
    animation: fadeIn 0.5s ease;
}

#tab-content p {
    margin-bottom: 15px;
}

#tab-content h3 {
    color: var(--secondary-color);
    margin: 20px 0 10px;
}

#tab-content ul {
    padding-left: 20px;
    margin-bottom: 15px;
}

#tab-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
}

#tab-content th, #tab-content td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

#tab-content th {
    color: var(--secondary-color);
}

#toggle-ui-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 50;
    transition: var(--transition-medium);
}

#toggle-ui {
    padding: 10px 22px;
    background: linear-gradient(145deg, rgba(25, 25, 25, 0.8), rgba(40, 40, 40, 0.8));
    border-radius: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(80, 80, 80, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 12px;
}

#toggle-ui:hover {
    background: linear-gradient(145deg, rgba(40, 40, 40, 0.8), rgba(60, 60, 60, 0.8));
    box-shadow: 0 6px 18px rgba(0,0,0,0.4);
}

.hidden-ui #ui-container {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-100%);
    visibility: hidden;
}

.hidden-ui #toggle-ui-container {
    opacity: 0.5;
}

.hidden-ui #toggle-ui-container:hover {
    opacity: 1;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes slideInLeft {
    from { transform: translateX(-50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes glow {
    0% { box-shadow: 0 0 5px rgba(18, 130, 162, 0.5); }
    50% { box-shadow: 0 0 20px rgba(18, 130, 162, 0.8); }
    100% { box-shadow: 0 0 5px rgba(18, 130, 162, 0.5); }
}

@keyframes pulse {
    0% { text-shadow: 0 0 10px rgba(255, 200, 87, 0.5); }
    100% { text-shadow: 0 0 25px rgba(255, 200, 87, 0.9); }
}

@keyframes slideOutUp {
    0% { 
        transform: translateY(0); 
        opacity: 1; 
    }
    100% { 
        transform: translateY(-100%); 
        opacity: 0; 
    }
}

@keyframes slideInDown {
    0% { 
        transform: translateY(-100%); 
        opacity: 0; 
    }
    100% { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

.fade-in {
    animation: fadeIn 1s forwards;
}

.scale-in {
    animation: scaleIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.slide-in-left {
    animation: slideInLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.slide-in-right {
    animation: slideInRight 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.slide-in-up {
    animation: slideInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.glow {
    animation: glow 3s infinite;
}

@keyframes titlePulse {
    0% { 
        text-shadow: var(--text-shadow), 0 0 20px rgba(255, 255, 255, 0.1);
        letter-spacing: 6px;
        transform: scale(1);
    }
    100% { 
        text-shadow: var(--text-shadow), 0 0 40px rgba(255, 255, 255, 0.3);
        letter-spacing: 8px;
        transform: scale(1.03);
    }
}

@keyframes slideOutUp {
    0% { 
        transform: translateY(0); 
        opacity: 1; 
    }
    100% { 
        transform: translateY(-100%); 
        opacity: 0; 
    }
}

@keyframes slideInDown {
    0% { 
        transform: translateY(-100%); 
        opacity: 0; 
    }
    100% { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 15, 15, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(50, 50, 50, 0.8), rgba(70, 70, 70, 0.8));
    border-radius: 4px;
    border: 1px solid rgba(100, 100, 100, 0.2);
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, rgba(70, 70, 70, 0.9), rgba(90, 90, 90, 0.9));
}

::-webkit-scrollbar-corner {
    background: transparent;
}

.panel-content,
#planet-menu,
#planet-info {
    scrollbar-width: thin;
    scrollbar-color: rgba(70, 70, 70, 0.8) rgba(15, 15, 15, 0.5);
}

.panel {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 90%;
    max-width: 500px;
    background: rgba(18, 18, 18, 0.85);
    backdrop-filter: blur(8px);
    border: var(--ui-border);
    border-radius: var(--ui-radius);
    padding: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    opacity: 1;
    visibility: visible;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.panel.dragging, 
.panel[style*="left"][style*="top"] {
    transform: none;
    transition: box-shadow 0.3s ease, opacity 0.3s ease;
}

.panel.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -50%) scale(0.9);
    pointer-events: none;
}

.panel.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.panel.dragging {
    box-shadow: 0 15px 40px rgba(0,0,0,0.5), 0 0 20px rgba(100, 100, 100, 0.2);
    opacity: 0.95;
    cursor: move;
    user-select: none;
}

.panel.dragging .panel-header {
    background: linear-gradient(145deg, #2a2a2a, #3a3a3a);
}

.panel-header {
    padding: 15px 20px;
    border-bottom: var(--ui-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    background: linear-gradient(145deg, rgba(25, 25, 25, 0.9), rgba(35, 35, 35, 0.9));
    border-radius: var(--ui-radius) var(--ui-radius) 0 0;
}

.panel-header h2 {
    color: var(--highlight-color);
    margin: 0;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1.2rem;
    text-shadow: var(--text-shadow);
}

.panel-content {
    padding: 20px;
    overflow-y: auto;
    background: rgba(18, 18, 18, 0.4);
    flex: 1;
}

.settings-section {
    margin-bottom: 20px;
}

.settings-section h3,
.about-section h3 {
    color: var(--highlight-color);
    font-size: 1rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(100, 100, 100, 0.2);
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.setting-item label {
    flex: 1;
}

.setting-item select,
.setting-item input[type="range"] {
    flex: 1;
}

.setting-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

#save-settings {
    display: block;
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    background: var(--btn-gradient);
    border: none;
    border-radius: var(--ui-radius);
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    cursor: pointer;
    transition: var(--transition-fast);
}

#save-settings:hover {
    background: var(--btn-gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.credits-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.credit-item {
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--ui-radius);
    padding: 12px;
    border: 1px solid rgba(80, 80, 80, 0.3);
    transition: var(--transition-fast);
}

.credit-item:hover {
    background: rgba(40, 40, 40, 0.7);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-color: rgba(100, 100, 100, 0.4);
}

.credit-item p {
    margin-bottom: 5px;
}

.credit-item strong {
    color: var(--highlight-color);
    letter-spacing: 1px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.95rem;
}

.copyright {
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 10px;
    border-top: 1px solid rgba(80, 80, 80, 0.2);
    padding-top: 10px;
}

@media (max-width: 480px) {
    .credits-container {
        grid-template-columns: 1fr;
    }
}

#about-panel {
    z-index: 1000;
}