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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0f1e 0%, #1a1a2e 100%);
    color: #fff;
    overflow: hidden;
}

/* Training Briefing */
.training-briefing {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.training-briefing.hidden {
    display: none;
}

.briefing-content {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 3px solid #06d6a0;
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(6, 214, 160, 0.3);
}

.briefing-header {
    background: linear-gradient(135deg, #0ea5e9 0%, #06d6a0 100%);
    padding: 30px 20px;
    text-align: center;
    border-radius: 9px 9px 0 0;
}

.briefing-header h1 {
    font-size: 2.2em;
    margin-bottom: 8px;
    font-weight: 700;
    letter-spacing: 1px;
}

.version {
    opacity: 0.8;
    font-size: 0.9em;
}

.briefing-body {
    padding: 25px;
}

.briefing-body h2 {
    color: #06d6a0;
    margin-bottom: 15px;
    font-size: 1.4em;
}

.briefing-body p {
    line-height: 1.8;
    margin-bottom: 20px;
    color: #cbd5e1;
    font-size: 1.05em;
}

.training-objectives {
    background: rgba(6, 214, 160, 0.1);
    padding: 20px;
    margin: 25px 0;
    border-left: 4px solid #06d6a0;
    border-radius: 8px;
}

.training-objectives h3 {
    color: #06d6a0;
    margin-bottom: 15px;
    font-size: 1.1em;
}

.training-objectives ul {
    list-style: none;
    padding: 0;
}

.training-objectives li {
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.training-objectives li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #06d6a0;
}

.difficulty-selector {
    margin: 20px 0;
}

.difficulty-selector h3 {
    color: #06d6a0;
    margin-bottom: 20px;
    font-size: 1.1em;
}

.difficulty-buttons {
    display: flex;
    gap: 10px;
}

.difficulty-btn {
    flex: 1;
    background: #0f172a;
    border: 2px solid #06d6a0;
    color: #fff;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    border-radius: 8px;
    font-size: 1.05em;
}

.difficulty-btn:hover {
    background: rgba(6, 214, 160, 0.15);
    transform: translateY(-2px);
}

.difficulty-btn.selected {
    background: linear-gradient(135deg, #0ea5e9 0%, #06d6a0 100%);
    color: #000;
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(6, 214, 160, 0.4);
}

.diff-icon {
    font-size: 1.5em;
}

.diff-name {
    font-weight: bold;
}

.start-training-btn {
    width: 100%;
    background: linear-gradient(135deg, #0ea5e9 0%, #06d6a0 100%);
    border: none;
    color: #000;
    padding: 18px;
    font-size: 1.2em;
    font-weight: 700;
    cursor: pointer;
    margin-top: 30px;
    transition: all 0.3s;
    border-radius: 8px;
    letter-spacing: 0.5px;
}

.start-training-btn:hover:not(.disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(6, 214, 160, 0.4);
}

.start-training-btn.disabled {
    background: #334155;
    color: #94a3b8;
    cursor: not-allowed;
}

/* Control Room */
.control-room {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, #0f0f1e 0%, #1a1a2e 100%);
    overflow: hidden;
}

.status-bar {
    background: linear-gradient(to bottom, rgba(6, 214, 160, 0.1), rgba(6, 214, 160, 0.05));
    padding: 8px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    gap: 20px;
    font-size: 0.9em;
    border-bottom: 2px solid #06d6a0;
}

.status-bar h1 {
    font-size: 1.5em;
    color: #06d6a0;
    font-weight: 700;
    letter-spacing: 1px;
}

.status-info {
    display: flex;
    gap: 30px;
    font-size: 1em;
}

.status-info strong {
    color: #06d6a0;
    font-weight: 600;
}

/* Main Viewport - Realistic Bridge View */
.main-viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: linear-gradient(to bottom, #1a1a2e 0%, #0f0f1e 100%);
}

.viewport-frame {
    width: 100%;
    height: 100%;
    position: relative;
    perspective: 1000px;
    flex: 1;
    overflow: hidden;
}

/* Sky */
.sky {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 30%;
    background: linear-gradient(to bottom, #1e90ff 0%, #87ceeb 50%, #e0f6ff 100%);
    z-index: 1;
    box-shadow: inset 0 -20px 60px rgba(0,0,0,0.1);
}

.clouds {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 40%, rgba(255,255,255,0.8) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 20%, rgba(255,255,255,0.7) 0%, transparent 45%),
        radial-gradient(ellipse at 85% 50%, rgba(255,255,255,0.75) 0%, transparent 40%),
        radial-gradient(ellipse at 10% 80%, rgba(255,255,255,0.6) 0%, transparent 35%);
    animation: cloudDrift 80s linear infinite;
    filter: drop-shadow(3px 3px 10px rgba(0,0,0,0.1));
}

@keyframes cloudDrift {
    from { transform: translateX(-100px); }
    to { transform: translateX(calc(100vw + 100px)); }
}

/* Water Layer */
.water-layer {
    position: absolute;
    top: 30%;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, #2a5f9f 0%, #1a3a6f 50%, #0f2850 100%);
    z-index: 2;
    overflow: hidden;
    box-shadow: inset 0 -20px 40px rgba(0,0,0,0.3), inset 0 20px 40px rgba(255,255,255,0.05);
}

.water-animation {
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            rgba(255,255,255,0.15) 40px,
            rgba(255,255,255,0.08) 80px,
            transparent 120px
        ),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            rgba(255,255,255,0.03) 5px,
            transparent 10px
        );
    animation: waterFlow 4s linear infinite;
}

@keyframes waterFlow {
    from { transform: translateX(0) translateY(0); }
    to { transform: translateX(120px) translateY(0); }
}

.boats-container-3d {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
}

.boat {
    position: absolute;
    font-size: 9em;
    filter: drop-shadow(4px 4px 8px rgba(0,0,0,0.5));
    animation: bobFloat 3s ease-in-out infinite;
    transition: left 0.8s ease-in-out;
    top: 8%;
    z-index: 10;
}

@keyframes bobFloat {
    0%, 100% { transform: translateY(0) rotateZ(-2deg); }
    25% { transform: translateY(-12px) rotateZ(1deg); }
    50% { transform: translateY(-8px) rotateZ(0deg); }
    75% { transform: translateY(-10px) rotateZ(-1deg); }
}

/* Bridge Scene */
.bridge-scene {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 50%;
    display: flex;
    align-items: flex-start;
    z-index: 3;
}

/* Road Sections */
.road-section {
    flex: 1;
    position: relative;
    height: 100%;
    perspective: 1200px;
}

.road-surface {
    width: 100%;
    height: 150px;
    background: linear-gradient(to bottom, #3a3a4a 0%, #2a2a3a 50%, #1a1a2a 100%);
    position: relative;
    border-top: 3px solid #666;
    box-shadow: inset 0 2px 5px rgba(255,255,255,0.1), inset 0 -2px 8px rgba(0,0,0,0.5);
}

.road-lines {
    position: absolute;
    top: 50%;
    width: 100%;
    height: 6px;
    background: repeating-linear-gradient(
        90deg,
        #FFD700 0px,
        #FFD700 40px,
        #FFA500 40px,
        #FFA500 50px,
        transparent 50px,
        transparent 90px
    );
    transform: translateY(-50%);
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.cars-lane {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}

.car {
    position: absolute;
    font-size: 6em;
    filter: drop-shadow(3px 3px 8px rgba(0,0,0,0.6));
    transition: left 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), right 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: carBounce 0.6s ease-in-out;
    z-index: 8;
}

@keyframes carBounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-3px) scale(1.05); }
}

/* Barrier System */
.barrier-system-container {
    position: absolute;
    bottom: 100px;
    width: 180px;
    height: 200px;
    z-index: 10;
    perspective: 1000px;
}

.barrier-system-container.left {
    right: 5px;
}

.barrier-system-container.right {
    left: 5px;
}

.traffic-light-pole {
    position: absolute;
    bottom: 0;
    width: 24px;
    height: 100px;
    background: linear-gradient(to bottom, #1a1a2a 0%, #0a0a1a 100%);
    border-radius: 4px;
    box-shadow: inset 0 1px 2px rgba(255,255,255,0.1), 3px 3px 8px rgba(0,0,0,0.5);
}

.barrier-system-container.left .traffic-light-pole {
    right: 40px;
}

.barrier-system-container.right .traffic-light-pole {
    left: 40px;
}

.light-box {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 38px;
    background: #0a0a0a;
    border-radius: 6px;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.8), inset 0 0 5px rgba(0,0,0,0.5);
    border: 2px solid #1a1a2a;
}

.light {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid #0a0a0a;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.light.red {
    background: #330000;
}

.light.red.on {
    background: #ff3333;
    box-shadow: 0 0 20px #ff0000, 0 0 40px #ff3333, inset 0 0 10px #ff9999, 0 0 8px #ff6666 inset;
    animation: redPulse 0.5s ease-in-out;
}

.light.green {
    background: #003300;
}

.light.green.on {
    background: #00ff00;
    box-shadow: 0 0 20px #00ff00, 0 0 40px #00ff00, inset 0 0 10px #66ff66, 0 0 8px #33ff33 inset;
    animation: greenPulse 0.5s ease-in-out;
}

@keyframes redPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes greenPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Barrier Arm */
.barrier-arm {
    position: absolute;
    bottom: 60px;
    width: 200px;
    height: 20px;
    transform-origin: bottom right;
    transition: transform 1.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-style: preserve-3d;
}

.barrier-system-container.left .barrier-arm {
    right: 0;
    transform-origin: bottom right;
}

.barrier-system-container.right .barrier-arm {
    left: 0;
    transform-origin: bottom left;
}

.barrier-arm.down {
    transform: rotateZ(0deg);
}

.barrier-arm.up {
    transform: rotateZ(90deg);
}

.barrier-system-container.right .barrier-arm.up {
    transform: rotateZ(-90deg);
}

.arm-pole {
    position: absolute;
    right: 0;
    width: 18px;
    height: 70px;
    background: linear-gradient(to bottom, #ff8c00 0%, #cc6600 100%);
    border-radius: 3px;
    box-shadow: inset 1px 0 2px rgba(255,255,255,0.3), 3px 3px 8px rgba(0,0,0,0.5);
}

.barrier-system-container.right .arm-pole {
    left: 0;
    right: auto;
}

.arm-boom {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 130px;
    height: 18px;
    background: linear-gradient(to right, #f0f0f0 0%, #ffffff 50%, #e0e0e0 100%);
    border-radius: 3px;
    box-shadow: inset 0 1px 3px rgba(255,255,255,0.5), 4px 4px 12px rgba(0,0,0,0.6);
}

.barrier-system-container.right .arm-boom {
    left: 18px;
    right: auto;
}

.boom-stripes {
    position: absolute;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        -45deg,
        #ff2222 0px,
        #ff2222 12px,
        #ffffff 12px,
        #ffffff 24px
    );
    opacity: 0.9;
    border-radius: 2px;
}

.boom-tip {
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: #ff2222;
    border-radius: 50%;
    box-shadow: 0 0 15px #ff2222, inset 0 0 8px #ff6666;
}

.barrier-system-container.right .boom-tip {
    left: -8px;
    right: auto;
}

/* Bridge Deck */
.bridge-deck-area {
    width: 240px;
    height: 150px;
    position: relative;
    perspective: 1200px;
    margin-top: 0;
    display: flex;
}

.deck-section {
    position: absolute;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, #6a7a8a 0%, #4a5a6a 50%, #3a4a5a 100%);
    border: 3px solid #2a3a4a;
    transition: transform 2.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: bottom;
    box-shadow: inset 0 2px 5px rgba(255,255,255,0.1), inset 0 -2px 8px rgba(0,0,0,0.5), 0 4px 12px rgba(0,0,0,0.4);
    transform-style: preserve-3d;
}

.deck-section.left {
    left: 0;
    border-right: 2px solid #1a2a3a;
    transform-origin: bottom left;
}

.deck-section.right {
    right: 0;
    border-left: 2px solid #1a2a3a;
    transform-origin: bottom right;
}

.deck-section.open {
    transform: rotateX(-80deg);
}

.deck-surface-texture {
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            90deg,
            #5a6a7a 0px,
            #5a6a7a 3px,
            #6a7a8a 3px,
            #6a7a8a 24px
        ),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 8px,
            rgba(0,0,0,0.1) 8px,
            rgba(0,0,0,0.1) 16px
        );
    opacity: 0.7;
}

.deck-railings {
    position: absolute;
    top: 0;
    width: 100%;
    height: 12px;
    background: repeating-linear-gradient(
        90deg,
        #1a2a3a 0px,
        #1a2a3a 6px,
        #2a3a4a 6px,
        #2a3a4a 18px
    );
    box-shadow: inset 0 1px 2px rgba(255,255,255,0.1);
}

/* Maritime Radio Panel */
.radio-panel {
    background: linear-gradient(to right, rgba(6, 214, 160, 0.08), transparent);
    border-bottom: 1px solid rgba(6, 214, 160, 0.3);
    padding: 12px 30px;
    display: flex;
    align-items: center;
}

.radio-container {
    display: flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, #0a1a2e 0%, #0f2a3f 100%);
    padding: 12px 18px;
    border-radius: 8px;
    border: 2px solid #06d6a0;
    box-shadow: 0 0 15px rgba(6, 214, 160, 0.2), inset 0 0 10px rgba(6, 214, 160, 0.1);
    max-width: 500px;
}

.radio-speaker {
    width: 50px;
    height: 50px;
    background: radial-gradient(circle, #1a1a2a 0%, #0a0a1a 100%);
    border-radius: 50%;
    border: 2px solid #06d6a0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.5), 0 0 12px rgba(6, 214, 160, 0.3);
}

.speaker-mesh {
    width: 40px;
    height: 40px;
    background: 
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 50% 25%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 75% 25%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 25% 50%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 75% 50%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 25% 75%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 50% 75%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 2px, transparent 2px);
    border-radius: 50%;
}

.radio-display {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.radio-screen {
    background: #0a0a1a;
    border: 1px solid #06d6a0;
    border-radius: 4px;
    padding: 10px 15px;
    min-width: 200px;
    min-height: 30px;
    display: flex;
    align-items: center;
    box-shadow: inset 0 0 8px rgba(0,0,0,0.8);
}

.radio-text {
    color: #06d6a0;
    font-size: 0.95em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
    animation: radioFlicker 0.1s infinite;
}

@keyframes radioFlicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.95; }
}

.radio-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85em;
    color: #cbd5e1;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.status-light {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #333;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
}

.status-light.active {
    background: #00ff00;
    box-shadow: 0 0 10px #00ff00, inset 0 0 5px #66ff66;
    animation: radioActive 1s ease-in-out infinite;
}

@keyframes radioActive {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Control Panel */
.control-panel {
    background: linear-gradient(to top, rgba(6, 214, 160, 0.05), rgba(6, 214, 160, 0.1));
    border-top: 2px solid #06d6a0;
    padding: 12px 20px;
    display: flex;
    gap: 20px;
    align-items: center;
    flex-shrink: 0;
}

.info-panel {
    flex: 1;
    min-width: 100px;
}

.info-panel h3 {
    color: #06d6a0;
    font-size: 0.8em;
    margin-bottom: 6px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 0.85em;
    color: #cbd5e1;
    gap: 15px;
}

.info-item strong {
    color: #06d6a0;
    font-weight: 700;
}

.controls-section {
    flex: 0 0 auto;
    text-align: center;
    padding: 6px 0;
}

.controls-section h3 {
    color: #06d6a0;
    font-size: 0.75em;
    margin-bottom: 4px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.control-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.control-btn {
    flex: 1;
    max-width: 160px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border: 2px solid #06d6a0;
    color: #fff;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-family: 'Segoe UI', sans-serif;
    border-radius: 6px;
}

.control-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, rgba(6, 214, 160, 0.2), rgba(14, 165, 233, 0.2));
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(6, 214, 160, 0.4);
    border-color: #22d3ee;
}

.control-btn:active:not(:disabled) {
    transform: translateY(0);
}

.control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #666;
}

.btn-icon {
    font-size: 1.4em;
}

.btn-label {
    font-weight: 700;
    font-size: 0.7em;
    letter-spacing: 0.2px;
}

.btn-state {
    font-size: 0.65em;
    color: #06d6a0;
    font-weight: 600;
}

.hint-text {
    margin-top: 8px;
    font-size: 0.85em;
    color: #999;
}

/* Warnings Bar */
.warnings-bar {
    background: rgba(6, 214, 160, 0.05);
    border-top: 1px solid #06d6a0;
    padding: 6px 30px;
    height: 30px;
    overflow: hidden;
    flex-shrink: 0;
    font-size: 0.85em;
}

.warnings-scroll {
    display: flex;
    gap: 40px;
    color: #06d6a0;
    font-size: 1em;
    animation: scrollWarnings 20s linear infinite;
    font-weight: 500;
}

@keyframes scrollWarnings {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.warning-item {
    white-space: nowrap;
}

.warning-item.error {
    color: #ff6b6b;
}

.warning-item.success {
    color: #06d6a0;
}

/* Game Over */
.game-over {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.game-over.hidden {
    display: none;
}

.game-over-content {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 3px solid #06d6a0;
    padding: 40px;
    text-align: center;
    min-width: 400px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(6, 214, 160, 0.3);
}

.game-over-content h2 {
    color: #06d6a0;
    font-size: 2.2em;
    margin-bottom: 30px;
    font-weight: 700;
}

.final-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 20px 0;
}

.stat-item {
    background: rgba(6, 214, 160, 0.1);
    padding: 20px;
    border: 1px solid #06d6a0;
    border-radius: 8px;
}

.stat-item span {
    display: block;
    color: #999;
    margin-bottom: 5px;
}

.stat-item strong {
    font-size: 1.8em;
    color: #06d6a0;
    font-weight: 700;
}

.final-rating {
    margin: 25px 0;
    padding: 20px;
    background: rgba(6, 214, 160, 0.1);
    border-left: 4px solid #06d6a0;
    border-radius: 8px;
}

.action-buttons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.action-btn {
    flex: 1;
    background: linear-gradient(135deg, #0ea5e9 0%, #06d6a0 100%);
    border: none;
    color: #000;
    padding: 14px;
    font-size: 1.05em;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 8px;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 214, 160, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
    .control-panel {
        flex-direction: column;
    }
    
    .bridge-deck-area {
        width: 120px;
    }
    
    .control-buttons {
        flex-direction: column;
    }
    
    .control-btn {
        max-width: 100%;
    }
}