:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #12182c;
    --bg-tertiary: #1c233f;
    --border-color: #3b4a7d;
    --text-primary: #d0d8f0;
    --text-secondary: #8091c0;
    --accent-cyan: #00e5ff;
    --accent-magenta: #ff00e5;
    --accent-yellow: #fff200;
    --accent-prism: #a855f7;
    --danger-color: #ff3b3b;
    --success-color: #00ff9d;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    user-select: none; /* Prevent selection */
}

#game {
    width: 95vw;
    height: 95vh;
    max-width: 1400px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.1);
    display: flex;
    flex-direction: column;
    z-index: 10;
    position: relative;
}

/* Particle Container */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 20;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0.8;
    pointer-events: none;
    animation: fadeOut 1s forwards;
}

.floating-text {
    position: absolute;
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-weight: bold;
    font-size: 1.2em;
    pointer-events: none;
    animation: floatUp 1s forwards;
    text-shadow: 0 0 3px black;
    z-index: 100;
}

@keyframes floatUp {
    0% { transform: translateY(0) scale(1); opacity: 1; }
    100% { transform: translateY(-50px) scale(1.2); opacity: 0; }
}

@keyframes fadeOut {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(0); opacity: 0; }
}

/* Header */
#resource-header {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background-color: rgba(0,0,0,0.2);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    position: relative;
    flex-shrink: 0;
    padding-right: 120px; /* Space for buttons */
}
.resource-display { text-align: center; min-width: 120px; }
.resource-label { font-family: 'Orbitron', sans-serif; font-size: 1.1em; color: var(--text-secondary); }
.resource-value { font-size: 2em; font-weight: bold; display: block; }
.resource-ps { font-size: 0.9em; color: var(--text-secondary); }
#energy-display { color: var(--accent-cyan); text-shadow: 0 0 5px rgba(0, 229, 255, 0.3); }
#stardust-display { color: var(--accent-yellow); text-shadow: 0 0 5px rgba(255, 242, 0, 0.3); }
.prestige .resource-label, .prestige .resource-value { color: var(--accent-magenta); }
#prisms-display { color: var(--accent-prism); }

/* Header Controls */
.header-controls {
    position: absolute;
    top: 10px;
    right: 15px;
    display: flex;
    gap: 10px;
}

#settings-button, #changelog-button {
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1.8em;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}
#settings-button:hover, #changelog-button:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}
#settings-button:hover { transform: rotate(90deg); }
#changelog-button:hover { transform: scale(1.1); }

/* Challenge Indicator */
#challenge-indicator {
    display: none;
    background-color: var(--accent-magenta);
    color: var(--bg-primary);
    text-align: center;
    padding: 8px;
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    text-shadow: 0 0 5px var(--bg-primary);
    animation: pulse-red 2s infinite;
    flex-shrink: 0;
}

@keyframes pulse-red {
    0% { background-color: var(--accent-magenta); }
    50% { background-color: #bd00aa; }
    100% { background-color: var(--accent-magenta); }
}

/* Research Progress Bar */
#research-progress-container {
    width: 100%;
    padding: 10px 20px;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    display: none;
    align-items: center;
    gap: 15px;
    box-sizing: border-box;
    flex-shrink: 0;
}
#research-progress-label {
    font-family: 'Orbitron', sans-serif;
    flex-shrink: 0;
}
#research-progress-bar-outer {
    flex-grow: 1;
    height: 10px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}
#research-progress-bar-inner {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-yellow), #fffabc);
    transition: width 0.1s linear;
    box-shadow: 0 0 10px var(--accent-yellow);
}
#research-progress-timer {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1em;
    color: var(--accent-yellow);
    width: 70px;
    text-align: right;
}

/* Main Content */
#main-content { display: flex; flex-grow: 1; overflow: hidden; }
#left-column { flex-basis: 30%; border-right: 1px solid var(--border-color); display: flex; flex-direction: column; }
/* Modified to allow absolute positioning of prism overlay inside */
#right-column { 
    flex-basis: 70%; 
    display: flex; 
    flex-direction: column; 
    position: relative; 
}

/* Forge Button */
#forge-container {
    flex-grow: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 20px;
}
#forge-button {
    width: 220px; height: 220px;
    border-radius: 50%;
    border: 5px solid var(--accent-cyan);
    background: radial-gradient(circle, #2a355e, var(--bg-secondary));
    color: var(--text-primary);
    font-family: 'Orbitron', sans-serif;
    font-size: 2.2em;
    cursor: pointer;
    box-shadow: 0 0 20px var(--accent-cyan), inset 0 0 20px rgba(0, 229, 255, 0.3);
    transition: transform 0.05s, box-shadow 0.1s, border-color 0.2s;
    outline: none;
    position: relative;
    overflow: hidden;
}
#forge-button:active { 
    transform: scale(0.92); 
    box-shadow: 0 0 50px var(--accent-cyan), inset 0 0 40px rgba(0, 229, 255, 0.6); 
}
#forge-button::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to bottom right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0) 100%);
    transform: rotate(45deg);
    transition: transform 0.5s;
}
#forge-button:hover::after {
    transform: rotate(45deg) translate(50%, 50%);
}

#forge-click-value { margin-top: 20px; font-size: 1.3em; color: var(--accent-cyan); font-weight: bold; text-shadow: 0 0 5px var(--accent-cyan);}

/* --- FORGE HEAT (COMBO) STYLES --- */
#combo-container {
    width: 220px;
    margin-top: 15px;
    text-align: center;
    opacity: 0.5;
    transition: opacity 0.3s;
}
#combo-container.active { opacity: 1; }

#combo-display {
    font-family: 'Orbitron', sans-serif;
    color: var(--text-secondary);
    font-size: 0.9em;
    margin-bottom: 6px;
    transition: color 0.3s, text-shadow 0.3s;
}
#combo-display.maxed {
    color: var(--accent-magenta);
    text-shadow: 0 0 10px var(--accent-magenta);
    animation: text-pulse 0.5s infinite alternate;
}

#combo-bar-outer {
    width: 100%;
    height: 8px;
    background: #0d111c;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: inset 0 0 5px rgba(0,0,0,0.8);
}
#combo-bar-inner {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-cyan));
    transition: width 0.1s linear, background 0.3s;
    box-shadow: 0 0 10px var(--accent-cyan);
}

@keyframes text-pulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.05); }
}

/* Log */
#log-container { height: 200px; border-top: 1px solid var(--border-color); display: flex; flex-direction: column; }
.log-header { padding: 10px; text-align: center; font-family: 'Orbitron', sans-serif; background: var(--bg-tertiary); letter-spacing: 2px;}
#log-messages { flex-grow: 1; overflow-y: auto; padding: 10px; font-size: 0.9em; scrollbar-width: thin; scrollbar-color: var(--border-color) var(--bg-secondary); }
#log-messages p { margin: 0 0 6px 0; color: var(--text-secondary); border-left: 2px solid transparent; padding-left: 5px; }
#log-messages p.major { color: var(--accent-yellow); font-weight: bold; border-left-color: var(--accent-yellow); }
#log-messages p.consumable { color: var(--accent-cyan); border-left-color: var(--accent-cyan); }
#log-messages p.prism { color: var(--accent-prism); font-weight: bold; border-left-color: var(--accent-prism); }
#log-messages p.danger { color: var(--danger-color); font-weight: bold; border-left-color: var(--danger-color); }

/* Tabs */
#tabs { display: flex; flex-wrap: wrap; background-color: var(--bg-secondary); flex-shrink: 0; }
.tab-button {
    flex-grow: 1; padding: 15px; background: transparent; border: none; border-bottom: 2px solid var(--border-color);
    color: var(--text-secondary); font-family: 'Orbitron', sans-serif; font-size: 1em; cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}
.tab-button:hover { background-color: rgba(255,255,255,0.05); color: var(--text-primary); }
.tab-button.active { background: var(--bg-tertiary); color: var(--accent-cyan); border-bottom: 2px solid var(--accent-cyan); }
#tab-content-area { flex-grow: 1; overflow-y: auto; padding: 20px; position: relative; scrollbar-width: thin; scrollbar-color: var(--border-color) var(--bg-secondary); }
.tab-content { display: none; padding-bottom: 40px; height: 100%; box-sizing: border-box; }
.tab-content.active { display: block; }
.tab-description { color: var(--text-secondary); border-left: 3px solid var(--border-color); padding-left: 15px; margin-bottom: 20px; line-height: 1.5; }

/* Buy Controls */
#buy-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
}
#buy-controls span { font-family: 'Orbitron', sans-serif; color: var(--text-secondary); }
.buy-amt-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 5px 15px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    transition: all 0.2s;
}
.buy-amt-btn:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.buy-amt-btn.active { background: var(--accent-cyan); color: var(--bg-primary); border-color: var(--accent-cyan); font-weight: bold; }


/* Item styles (Generators) */
.item { display: flex; background: var(--bg-tertiary); margin-bottom: 10px; border: 1px solid transparent; transition: border-color 0.2s; }
.item:hover { border-color: #3b4a7d; }
.item-info { flex-grow: 1; padding: 15px; }
.item-name { font-family: 'Orbitron', sans-serif; font-size: 1.2em; color: var(--text-primary); }
.item-desc { font-size: 0.9em; color: var(--text-secondary); margin: 5px 0; }
.item-prod { color: var(--accent-cyan); font-size: 0.95em; }
.item-actions {
    width: 200px;
    padding: 15px;
    text-align: center;
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(0,0,0,0.1);
}
.item-count { font-size: 2em; font-weight: bold; color: var(--text-primary); }
.buy-button {
    width: 100%; padding: 10px; margin-top: 10px; background: transparent; border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan); font-family: 'Orbitron', sans-serif; cursor: pointer; transition: background-color 0.2s, color 0.2s, transform 0.1s;
}
.buy-button:hover:not(:disabled) { background-color: var(--accent-cyan); color: var(--bg-primary); }
.buy-button:active:not(:disabled) { transform: translateY(1px); }
.buy-button:disabled { border-color: #555; color: #555; cursor: not-allowed; opacity: 0.7; }

/* Milestones */
.milestone-bar { display: flex; gap: 4px; margin-top: 8px; }
.milestone-pip { flex-grow: 1; height: 6px; background: #2a2a2a; border-radius: 2px; }
.milestone-pip.unlocked { background: var(--accent-yellow); box-shadow: 0 0 5px rgba(255, 242, 0, 0.5); }

/* Research Tree */
#research-tree { display: flex; flex-wrap: wrap; gap: 15px; justify-content: flex-start; }
.tech {
    width: 220px; text-align: left; padding: 15px; background: var(--bg-tertiary); border: 1px solid var(--border-color);
    opacity: 0.5; transition: opacity 0.3s, border-color 0.3s, transform 0.2s;
    display: flex; flex-direction: column; justify-content: space-between;
}
.tech:hover { transform: translateY(-2px); }
.tech > div:first-child { font-family: 'Orbitron', sans-serif; color: var(--accent-yellow); margin-bottom: 5px; }
.tech small { color: var(--text-secondary); font-size: 0.85em; display: block; flex-grow: 1; }
.tech.available { opacity: 1; border-color: #555; }
.tech.purchased { border-color: var(--accent-yellow); background-color: rgba(255, 242, 0, 0.1); opacity: 1; }
.tech-button { width: 100%; margin-top: 10px; font-size: 0.9em; pointer-events: auto; }

/* Consumables */
#consumables-container { display: flex; flex-direction: column; gap: 12px; }
.consumable-item {
    width: 100%; display: flex; align-items: center; background-color: rgba(28, 35, 63, 0.5);
    border: 1px solid rgba(59, 74, 125, 0.7); padding: 15px; box-sizing: border-box;
}
.consumable-info { flex-grow: 1; }
.consumable-actions { width: 220px; text-align: center; flex-shrink: 0; margin-left: 15px; }
.active-timer { color: var(--accent-cyan); margin-bottom: 8px; font-size: 0.9em; font-weight: bold; }
.consumable-button { margin-top: 0; }

/* Challenges */
#challenges-container { display: flex; flex-direction: column; gap: 15px; }
.challenge-item {
    background: var(--bg-tertiary); border: 1px solid var(--border-color); padding: 15px;
    display: flex; flex-wrap: wrap; align-items: center; gap: 15px; transition: opacity 0.3s;
}
.challenge-item .item-name { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 5px; margin-bottom: 5px;}
.challenge-item .item-desc { flex-basis: 40%; flex-grow: 1; }
.challenge-reward { flex-basis: 40%; flex-grow: 1; color: var(--accent-yellow); font-size: 0.9em; }
.challenge-button {
    padding: 10px 20px; background: transparent; border: 1px solid var(--accent-magenta);
    color: var(--accent-magenta); font-family: 'Orbitron', sans-serif; cursor: pointer; transition: all 0.2s;
}
.challenge-button:hover:not(:disabled) { background-color: var(--accent-magenta); color: var(--bg-primary); }
.challenge-item.completed { border-color: var(--accent-yellow); opacity: 0.8; background: rgba(255, 242, 0, 0.05); }
.challenge-item.active { border-color: var(--accent-magenta); box-shadow: 0 0 15px rgba(255, 0, 229, 0.2); }
.challenge-item.locked { opacity: 0.4; pointer-events: none; }

/* --- Prisms (Expanded Tree / Overlay) --- */

/* Prisms now breaks out of the tab flow */
#prisms-content {
    display: none;
}

#prisms-content.active { 
    display: flex; 
    flex-direction: column; 
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-secondary);
    z-index: 100;
    padding: 0;
}

#exit-prism-view {
    position: absolute;
    top: 15px;
    right: 25px;
    background: transparent;
    border: 2px solid var(--accent-prism);
    color: var(--accent-prism);
    font-size: 1.5em;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 101;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Roboto', sans-serif;
    transition: all 0.2s;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}
#exit-prism-view:hover {
    background: var(--accent-prism);
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--accent-prism);
    transform: scale(1.1);
}

#prism-boost-container { text-align: center; padding: 20px 20px 20px 20px; border-bottom: 1px solid var(--border-color); flex-shrink: 0; background: var(--bg-tertiary); }
#prism-boost-button {
    padding: 15px 30px; font-family: 'Orbitron', sans-serif; font-size: 1.2em; background-color: transparent;
    border: 2px solid var(--accent-prism); color: var(--accent-prism); cursor: pointer;
    transition: all 0.2s; user-select: none;
}
#prism-boost-button:hover { background-color: var(--accent-prism); color: var(--bg-primary); box-shadow: 0 0 20px var(--accent-prism); }

#prism-tree-container { 
    position: relative; 
    width: 100%; 
    height: 100%;
    flex-grow: 1; 
    overflow: auto; 
    padding: 0; 
    background: radial-gradient(circle at center, #1c152e, transparent); 
}

#prism-canvas {
    position: relative;
    width: 2500px;
    height: 1500px; /* Expanded height */
    min-height: 100%;
}

.prism-tech {
    position: absolute; width: 140px; height: 90px; 
    background: var(--bg-tertiary); /* Solid background */
    border: 1px solid var(--border-color);
    padding: 10px; box-sizing: border-box; display: flex; flex-direction: column; justify-content: center;
    align-items: center; text-align: center; transition: all 0.3s; cursor: pointer; 
    opacity: 1; /* Made opaque as requested */
    z-index: 5;
    box-shadow: 0 4px 6px rgba(0,0,0,0.5);
}
.prism-tech:hover { border-color: var(--accent-prism); transform: scale(1.05); z-index: 6; }
.prism-tech.available { opacity: 1; box-shadow: 0 0 15px rgba(168, 85, 247, 0.4); border-color: #aaa; background-color: #252a45; }
.prism-tech.locked { 
    opacity: 0.6; /* Slight transparency for locked, but not invisible */
    pointer-events: none; 
    filter: grayscale(100%); 
    background-color: #151a2e;
}
.prism-tech.purchased { border-color: var(--accent-prism); background-color: #3c1a5c; opacity: 1; cursor: default; box-shadow: 0 0 15px var(--accent-prism); }

.prism-tech-name { font-family: 'Orbitron', sans-serif; font-size: 0.85em; color: var(--text-primary); }
.prism-tech-desc { font-size: 0.7em; color: var(--text-secondary); margin: 5px 0; display: none; }
.prism-tech:hover .prism-tech-desc { display: block; position: absolute; background: black; padding: 5px; width: 150px; top: 100%; z-index: 10; border: 1px solid #555; }
.prism-tech-cost { font-size: 0.8em; color: var(--accent-prism); margin-top: auto; }

.prism-connector { position: absolute; background-color: var(--border-color); height: 2px; transform-origin: left center; z-index: 1; transition: background-color 0.3s; }
.prism-connector.purchased { background-color: var(--accent-prism); box-shadow: 0 0 5px var(--accent-prism); height: 3px; }

/* Prestige & Tiers */
.prestige-info { text-align: center; margin: 20px 0; }
.prestige-value { font-size: 3em; color: var(--accent-magenta); display: block; font-family: 'Orbitron', sans-serif; text-shadow: 0 0 10px rgba(255, 0, 229, 0.5); }
.prestige-button { 
    width: 80%; padding: 20px; margin: 0 auto; display: block; background: transparent; border: 2px solid var(--accent-magenta);
    color: var(--accent-magenta); font-family: 'Orbitron', sans-serif; font-size: 1.2em; cursor: pointer; transition: all 0.3s;
}
.prestige-button:hover:not(:disabled) { background: var(--accent-magenta); color: var(--bg-primary); box-shadow: 0 0 30px var(--accent-magenta); }
.prestige-button:disabled { border-color: #555; color: #555; cursor: not-allowed; }
.tier-info-box { padding: 20px; text-align: center; background: rgba(0,0,0,0.2); border: 1px solid var(--border-color); margin-top: 10px; }
.tier-desc { color: var(--accent-yellow); margin-bottom: 15px; }

#cosmic-laws-container { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 20px; }

/* Modal */
.modal { position: fixed; z-index: 100; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.8); display: flex; justify-content: center; align-items: center; backdrop-filter: blur(3px); }
.modal-content { background-color: var(--bg-secondary); padding: 30px; border: 1px solid var(--border-color); width: 90%; max-width: 500px; position: relative; box-shadow: 0 0 30px rgba(0,0,0,0.8); }
.modal-close-button { position: absolute; top: 10px; right: 15px; color: var(--text-secondary); font-size: 2em; cursor: pointer; }
.modal-close-button:hover { color: var(--text-primary); }
.hidden { display: none; }
.option-button { width: 80%; display: block; margin: 15px auto; padding: 15px; font-family: 'Orbitron', sans-serif; background: transparent; border: 1px solid var(--border-color); color: var(--text-primary); cursor: pointer; transition: all 0.2s;}
.option-button:hover { background: var(--bg-tertiary); border-color: var(--accent-cyan); }
.danger { border-color: var(--danger-color); color: var(--danger-color); }
.danger:hover:not(:disabled) { background-color: var(--danger-color); color: var(--text-primary); border-color: var(--danger-color); }

.option-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 80%;
    margin: 15px auto;
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #333;
  transition: .4s;
}
.slider:before {
  position: absolute;
  content: "";
  height: 16px; width: 16px;
  left: 4px; bottom: 4px;
  background-color: white;
  transition: .4s;
}
input:checked + .slider { background-color: var(--accent-cyan); }
input:checked + .slider:before { transform: translateX(26px); }
.slider.round { border-radius: 24px; }
.slider.round:before { border-radius: 50%; }

/* Changelog Styles */
.changelog-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    width: 80vw;
    height: 80vh;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 0 50px rgba(0,0,0,0.8);
}

.changelog-layout {
    display: flex;
    height: 100%;
}

.changelog-sidebar {
    width: 250px;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
}

.changelog-sidebar h3 {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    color: var(--text-primary);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    margin: 0;
    background: rgba(0,0,0,0.2);
}

.changelog-nav-item {
    padding: 15px 20px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: background 0.2s, color 0.2s;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9em;
}

.changelog-nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--accent-cyan);
}

.changelog-nav-item.active {
    background: var(--bg-primary);
    color: var(--accent-cyan);
    border-left: 4px solid var(--accent-cyan);
}

.changelog-details {
    flex-grow: 1;
    padding: 20px 40px;
    overflow-y: auto;
}

#changelog-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-yellow);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.changelog-section { margin-bottom: 20px; }
.changelog-section h4 { color: var(--accent-cyan); margin-bottom: 10px; font-family: 'Orbitron', sans-serif; font-size: 1em; }
.changelog-section ul { list-style-type: none; padding-left: 10px; }
.changelog-section li { margin-bottom: 5px; position: relative; padding-left: 15px; }
.changelog-section li:before { content: ">"; position: absolute; left: 0; color: var(--text-secondary); }