:root {
    --phosphor-green: #33ff33;
    --phosphor-green-glow: rgba(51, 255, 51, 0.5);
    --phosphor-dim: #006611;
    --danger-red: #ff3333;
    --danger-red-glow: rgba(255, 51, 51, 0.6);
    --bg-color: #030803;
    --bg-terminal: #020502;
    --border-color: #22aa22;
}

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

body {
    background-color: var(--bg-color);
    color: var(--phosphor-green);
    font-family: 'VT323', monospace;
    font-size: 20px;
    line-height: 1.4;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* CRT Screen Effects */
.crt::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: radial-gradient(circle, rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 999;
    pointer-events: none;
}

.crt-scanlines {
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    background-size: 100% 3px, 3px 100%;
    z-index: 998;
    pointer-events: none;
}

.crt-vignette {
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    box-shadow: inset 0 0 100px rgba(0,0,0,0.8);
    z-index: 1000;
    pointer-events: none;
}

.crt-flicker {
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: rgba(18, 16, 16, 0.05);
    opacity: 0;
    z-index: 997;
    pointer-events: none;
    animation: flicker 0.15s infinite;
}

@keyframes flicker {
    0% { opacity: 0.12; }
    50% { opacity: 0.08; }
    100% { opacity: 0.15; }
}

/* Container Structure */
.game-container {
    width: 98vw;
    height: 96vh;
    border: 3px double var(--border-color);
    box-shadow: 0 0 15px var(--phosphor-green-glow);
    padding: 10px;
    display: flex;
    flex-direction: column;
    z-index: 10;
    background-color: var(--bg-color);
}

/* Header Styling */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.header-left, .header-right {
    width: 30%;
    display: flex;
    align-items: center;
}

.header-left {
    justify-content: flex-start;
    gap: 15px;
}

.header-right {
    justify-content: flex-end;
    gap: 10px;
}

.header-center {
    width: 40%;
    text-align: center;
}

.header-center h1 {
    font-size: 32px;
    letter-spacing: 2px;
    text-shadow: 0 0 5px var(--phosphor-green-glow);
}

.status-glow {
    text-shadow: 0 0 5px var(--phosphor-green-glow);
}

.divider {
    color: var(--border-color);
}

.defcon-title {
    font-weight: bold;
}

.defcon-status-bar {
    display: flex;
    gap: 4px;
}

.defcon-pip {
    display: inline-block;
    width: 25px;
    height: 25px;
    line-height: 22px;
    text-align: center;
    border: 1px solid var(--border-color);
    font-weight: bold;
    color: var(--phosphor-dim);
}

.defcon-pip.active {
    color: var(--bg-color);
    background-color: var(--phosphor-green);
    box-shadow: 0 0 8px var(--phosphor-green-glow);
    border-color: var(--phosphor-green);
}

/* Critical Threat (DEFCON 1) Flashing */
#defcon-1.active {
    color: white;
    background-color: var(--danger-red);
    border-color: var(--danger-red);
    box-shadow: 0 0 10px var(--danger-red-glow);
    animation: alert-flash 0.8s infinite alternate;
}

@keyframes alert-flash {
    0% { background-color: var(--danger-red); opacity: 1; }
    50% { background-color: #aa0000; }
    100% { background-color: var(--bg-color); color: var(--danger-red); }
}

/* Grid Layout */
.display-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 10px;
    min-height: 0; /* Important for scroll/overflow */
}

/* Canvas / Map Viewport */
.map-viewport {
    border: 2px solid var(--border-color);
    background-color: #000;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#game-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Control Panel & Modules */
.control-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    padding-right: 2px;
}

/* Custom Scrollbar for Retro Panel */
.control-panel::-webkit-scrollbar {
    width: 6px;
}
.control-panel::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-left: 1px solid var(--border-color);
}
.control-panel::-webkit-scrollbar-thumb {
    background: var(--border-color);
}

.panel-section {
    border: 1px solid var(--border-color);
    background-color: var(--bg-terminal);
    padding: 8px;
    transition: opacity 0.3s ease;
}

.panel-section.disabled {
    opacity: 0.25;
    pointer-events: none;
}

.panel-section h3 {
    font-size: 18px;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 4px;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.button-row {
    display: flex;
    gap: 8px;
}

.section-desc {
    font-size: 14px;
    color: var(--phosphor-dim);
    margin-top: 4px;
}

/* Retro Buttons */
.retro-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--phosphor-green);
    padding: 6px 12px;
    font-family: 'VT323', monospace;
    font-size: 18px;
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.15s ease;
}

.retro-btn:hover:not(:disabled) {
    background-color: var(--phosphor-dim);
    box-shadow: 0 0 5px var(--phosphor-green-glow);
}

.retro-btn:active:not(:disabled) {
    background-color: var(--phosphor-green);
    color: var(--bg-color);
}

.select-btn {
    flex: 1;
}

.select-btn.active {
    background-color: var(--phosphor-green);
    color: var(--bg-color);
    font-weight: bold;
    box-shadow: 0 0 5px var(--phosphor-green-glow);
}

.danger-btn {
    border-color: var(--danger-red);
    color: var(--danger-red);
    font-weight: bold;
    font-size: 20px;
    padding: 8px 16px;
}

.danger-btn:hover:not(:disabled) {
    background-color: #660000;
    box-shadow: 0 0 8px var(--danger-red-glow);
}

.danger-btn:active:not(:disabled) {
    background-color: var(--danger-red);
    color: white;
}

.danger-btn:disabled {
    border-color: #440000;
    color: #440000;
    cursor: not-allowed;
}

/* DEFCON Controls */
.defcon-controls {
    display: flex;
    justify-content: space-between;
}

.defcon-btn {
    flex: 1;
    height: 35px;
    background: transparent;
    color: var(--phosphor-green);
    border: 1px solid var(--border-color);
    font-family: 'VT323', monospace;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 0 2px;
}

.defcon-btn:hover {
    background-color: var(--phosphor-dim);
}

.defcon-btn.active {
    background-color: var(--phosphor-green);
    color: var(--bg-color);
    font-weight: bold;
}

/* DEFCON level colors when selected */
.defcon-btn.btn-d5.active { background-color: #33ff33; border-color: #33ff33; }
.defcon-btn.btn-d4.active { background-color: #99ff33; border-color: #99ff33; }
.defcon-btn.btn-d3.active { background-color: #ffff33; border-color: #ffff33; }
.defcon-btn.btn-d2.active { background-color: #ff9933; border-color: #ff9933; }
.defcon-btn.btn-d1.active { 
    background-color: var(--danger-red); 
    border-color: var(--danger-red); 
    color: white;
    animation: button-flash 0.5s infinite alternate;
}

@keyframes button-flash {
    from { opacity: 1; box-shadow: 0 0 10px var(--danger-red-glow); }
    to { opacity: 0.6; }
}

/* Launch controls */
.launch-sequence {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.target-confirmation {
    display: flex;
    justify-content: space-between;
    font-size: 18px;
}

.highlight {
    color: gold;
    text-shadow: 0 0 4px rgba(255,215,0,0.5);
}

.code-entry {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.retro-input {
    background: black;
    border: 1px solid var(--border-color);
    color: var(--phosphor-green);
    font-family: 'VT323', monospace;
    font-size: 20px;
    padding: 6px;
    text-align: center;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.retro-input:focus {
    outline: none;
    box-shadow: 0 0 5px var(--phosphor-green-glow);
}

.retro-input:disabled {
    border-color: var(--phosphor-dim);
    color: var(--phosphor-dim);
    background-color: #010301;
}

.suggested-code {
    font-size: 24px;
    color: gold;
    text-shadow: 0 0 6px rgba(255, 215, 0, 0.7);
    text-align: center;
    min-height: 24px;
    letter-spacing: 2px;
    font-weight: bold;
    display: block;
    margin-top: 6px;
}

/* Statistics Table Layout */
.stats-display {
    display: flex;
    gap: 10px;
}

.stat-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border: 1px dashed var(--phosphor-dim);
    padding: 6px;
}

.stat-header {
    font-weight: bold;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 2px;
    margin-bottom: 4px;
    text-align: center;
    font-size: 18px;
}

.stat-row {
    font-size: 16px;
    display: flex;
    justify-content: space-between;
}

.stat-row.danger {
    color: var(--danger-red);
}

/* Terminal / Log Output styling */
.terminal-container {
    height: 120px;
    border: 2px solid var(--border-color);
    background-color: var(--bg-terminal);
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    padding: 5px 10px;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--phosphor-dim);
    font-size: 14px;
    color: var(--phosphor-dim);
    margin-bottom: 5px;
}

.cursor {
    animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
    to { visibility: hidden; }
}

.terminal-body {
    flex: 1;
    overflow-y: auto;
    font-size: 17px;
    display: flex;
    flex-direction: column-reverse; /* Scroll-to-bottom automatic */
}

/* Typewriter animation styling helper */
.terminal-line {
    border-right: 2px solid transparent;
    white-space: pre-wrap;
    margin-bottom: 2px;
}
.terminal-line.alert {
    color: var(--danger-red);
}
.terminal-line.system {
    color: gold;
}