/* ===== 3D TOWER VISUALIZATION ===== */
.tower-visualization {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

.visualization-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.visualization-header h2 {
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.view-controls {
    display: flex;
    gap: var(--space-2);
}

.view-btn {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
}

.view-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.view-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

/* ===== TOWER SCENE ===== */
.tower-scene {
    flex: 1;
    position: relative;
    perspective: 1200px;
    perspective-origin: 50% 40%;
    padding: var(--space-8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scene-container {
    transform-style: preserve-3d;
    position: relative;
    width: 300px;
    height: 500px;
    /* REMOVED: animation and transform that caused movement */
    transform: rotateX(-10deg) rotateY(15deg);
    /* STATIC: No more annoying animation */
}

/* ===== LED ASSEMBLY (DIRECT MOUNT) ===== */
.led-assembly {
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%) translateZ(20px);
    z-index: 100;
}

.led-component {
    width: 20px;
    height: 30px;
    position: relative;
    transform-style: preserve-3d;
}

.led-lens {
    width: 20px;
    height: 20px;
    border-radius: 50% 50% 45% 45%;
    background: radial-gradient(
        ellipse at 30% 30%,
        rgba(255, 255, 255, 0.9),
        rgba(255, 255, 255, 0.4) 40%,
        rgba(0, 255, 0, 0.6) 60%,
        rgba(0, 255, 0, 1) 100%
    );
    position: relative;
    transform: translateZ(5px);
    box-shadow: 
        0 0 25px rgba(0, 255, 0, 0.8),
        0 0 50px rgba(0, 255, 0, 0.4),
        inset 0 2px 5px rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
    animation: ledGlow 2s infinite alternate;
}

.led-lens.off {
    background: radial-gradient(
        ellipse at 30% 30%,
        rgba(150, 150, 150, 0.3),
        rgba(100, 100, 100, 0.4) 40%,
        rgba(80, 80, 80, 0.8) 100%
    );
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.3);
    animation: none;
}

@keyframes ledGlow {
    0% { 
        box-shadow: 
            0 0 25px rgba(0, 255, 0, 0.8),
            0 0 50px rgba(0, 255, 0, 0.4);
    }
    100% { 
        box-shadow: 
            0 0 35px rgba(0, 255, 0, 1),
            0 0 70px rgba(0, 255, 0, 0.6);
    }
}

.led-body {
    width: 18px;
    height: 15px;
    background: linear-gradient(135deg, #e8e8e8, #d0d0d0);
    border-radius: 0 0 2px 2px;
    position: absolute;
    top: 18px;
    left: 1px;
    transform: translateZ(-2px);
    box-shadow: 
        inset 0 2px 5px rgba(0, 0, 0, 0.1),
        0 2px 5px rgba(0, 0, 0, 0.2);
}

/* LED LEGS (VISIBLE DIRECTLY TO TOP COMPONENT) */
.led-legs {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
}

.led-leg {
    width: 2px;
    height: 20px;
    background: linear-gradient(to bottom, #FFD700, #DAA520);
    border-radius: 1px;
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.3),
        inset 0 1px 1px rgba(255, 255, 255, 0.3);
    position: relative;
}

.led-leg.positive {
    height: 22px;
}

.led-leg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent 30%, 
        rgba(255, 255, 255, 0.3) 50%, 
        transparent 70%
    );
    border-radius: inherit;
}

.led-mount-point {
    position: absolute;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 8px;
    background: #2c3e50;
    border-radius: 2px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mount-connector {
    width: 12px;
    height: 4px;
    background: #34495e;
    border-radius: 1px;
}

/* ===== TOWER STACK ===== */
.tower-stack {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.tower-component {
    position: absolute;
    width: 100%;
    height: 100px;
    transform-style: preserve-3d;
}

.tower-component[data-level="1"] { bottom: 0; }
.tower-component[data-level="2"] { bottom: 100px; }
.tower-component[data-level="3"] { bottom: 200px; }
.tower-component[data-level="4"] { bottom: 300px; }

/* ===== COMPONENT MOUNTS ===== */
.component-mount-top,
.component-mount-bottom {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 8px;
    background: #2c3e50;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.component-mount-top {
    top: -4px;
}

.component-mount-bottom {
    bottom: -4px;
}

.wire-terminal {
    position: absolute;
    width: 3px;
    height: 3px;
    background: #FFD700;
    border-radius: 50%;
    box-shadow: 0 0 3px rgba(255, 215, 0, 0.5);
}

.wire-terminal.positive {
    left: 8px;
}

.wire-terminal.negative {
    right: 8px;
}

/* ===== POPSICLE STICKS ===== */
.popsicle-stick {
    width: 20px;
    height: 80px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    cursor: grab;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 50;
}

.popsicle-stick:active {
    cursor: grabbing;
}

.popsicle-stick.dragging {
    z-index: 1000;
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.1);
    filter: brightness(1.2);
}

/* FIXED: Keep failed components draggable */
.popsicle-stick.failed {
    transform: translate(100px, 50px) rotate(25deg);
    opacity: 0.3;
    filter: grayscale(0.8);
    /* REMOVED: pointer-events: none; */
    cursor: grab !important;
    pointer-events: auto !important;
}

.stick-body {
    width: 100%;
    height: 100%;
    background: 
        /* Wood grain */
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            rgba(139, 69, 19, 0.15) 0.5px,
            transparent 1px,
            transparent 4px
        ),
        /* Base wood color */
        linear-gradient(
            to right,
            #D2B48C 0%,
            #DDB76F 25%,
            #D2B48C 50%,
            #F5DEB3 75%,
            #D2B48C 100%
        );
    border-radius: 2px;
    position: relative;
    transform: translateZ(5px);
    box-shadow: 
        0 3px 10px rgba(0, 0, 0, 0.3),
        inset 1px 0 2px rgba(255, 255, 255, 0.3),
        inset -1px 0 2px rgba(0, 0, 0, 0.1);
    border: 1px solid #B8860B;
}

.wood-texture {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* Wood knots */
        radial-gradient(ellipse 2px 8px at 30% 25%, rgba(139, 69, 19, 0.3), transparent),
        radial-gradient(ellipse 1.5px 6px at 70% 60%, rgba(160, 82, 45, 0.2), transparent);
    border-radius: inherit;
}

.stick-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateZ(5px);
    color: #8B4513;
    font-weight: 900;
    font-size: 1.2em;
    text-shadow: 
        1px 1px 2px rgba(255, 255, 255, 0.5),
        -1px -1px 2px rgba(0, 0, 0, 0.3);
    z-index: 15;
}

/* ===== WIRE CHANNELS ===== */
.wire-channel {
    position: absolute;
    top: 0;
    left: 50%;
    width: 8px;
    height: 100%;
    transform: translateX(-50%);
    z-index: 3;
}

.wire {
    position: absolute;
    width: 2px;
    height: 100%;
    border-radius: 1px;
    transition: all 0.3s ease;
}

.positive-wire {
    left: 2px;
    background: linear-gradient(to bottom, #FF6B6B, #FF8E8E);
    box-shadow: 0 0 3px rgba(255, 107, 107, 0.5);
}

.negative-wire {
    right: 2px;
    background: linear-gradient(to bottom, #4ECDC4, #6BCCC4);
    box-shadow: 0 0 3px rgba(78, 205, 196, 0.5);
}

.wire.active {
    animation: currentFlow 2s linear infinite;
}

@keyframes currentFlow {
    0% { 
        filter: brightness(1);
        box-shadow: 0 0 3px rgba(255, 107, 107, 0.5);
    }
    50% { 
        filter: brightness(1.5);
        box-shadow: 0 0 8px rgba(255, 107, 107, 0.8);
    }
    100% { 
        filter: brightness(1);
        box-shadow: 0 0 3px rgba(255, 107, 107, 0.5);
    }
}

.wire.failed {
    background: #999;
    opacity: 0.4;
    animation: none;
}

/* ===== CONNECTION POINTS ===== */
.connection-points {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 8;
}

.connection-point {
    position: absolute;
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, #FFD700, #DAA520);
    border-radius: 50%;
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.5),
        inset 0 1px 1px rgba(255, 255, 255, 0.3);
    border: 1px solid #B8860B;
}

.connection-point.top.positive {
    top: -2px;
    left: 6px;
}

.connection-point.top.negative {
    top: -2px;
    right: 6px;
}

.connection-point.bottom.positive {
    bottom: -2px;
    left: 6px;
}

.connection-point.bottom.negative {
    bottom: -2px;
    right: 6px;
}

.connection-point.active {
    animation: connectionGlow 1.5s ease-in-out infinite;
}

@keyframes connectionGlow {
    0%, 100% {
        box-shadow: 
            0 1px 3px rgba(0, 0, 0, 0.5),
            0 0 5px rgba(255, 215, 0, 0.5);
    }
    50% {
        box-shadow: 
            0 1px 3px rgba(0, 0, 0, 0.5),
            0 0 12px rgba(255, 215, 0, 0.8);
    }
}

/* ===== DROP ZONES ===== */
.drop-zone {
    position: absolute;
    width: 80px;
    height: 80px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border: 3px dashed transparent;
    border-radius: 12px;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    z-index: 20;
}

/* Visual indication for draggable failed components */
.popsicle-stick.draggable-failed {
    cursor: grab;
    transition: all 0.3s ease;
}

.popsicle-stick.draggable-failed:hover {
    opacity: 0.5 !important;
    filter: grayscale(0.5) brightness(1.1);
    transform: translate(100px, 50px) rotate(25deg) scale(1.05);
}

/* Improve drag feedback for failed components */
.popsicle-stick.failed.dragging {
    opacity: 0.6 !important;
    filter: grayscale(0.4) brightness(1.2);
    transform: translate(100px, 50px) rotate(25deg) scale(1.1);
}


/* Drop zone improvements */
.drop-zone.active {
    opacity: 1;
    pointer-events: all;
    border-color: #28a745;
    background: rgba(40, 167, 69, 0.15);
    backdrop-filter: blur(8px);
    animation: dropZonePulse 2s infinite;
    z-index: 1000; /* Ensure drop zones are on top */
}

@keyframes dropZonePulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        border-color: #28a745;
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.05);
        border-color: #20c997;
    }
}

.drop-indicator {
    text-align: center;
    color: #28a745;
    font-weight: 600;
}

.drop-icon {
    font-size: 1.5em;
    margin-bottom: 5px;
    display: block;
}

.drop-text {
    font-size: 0.8em;
    font-weight: 700;
}

/* ===== BATTERY ASSEMBLY ===== */
.battery-assembly {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%) translateZ(15px);
    z-index: 80;
}

.battery-housing {
    width: 40px;
    height: 20px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.battery-terminals {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
}

.terminal {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: bold;
    color: white;
}

.terminal.positive {
    background: #e74c3c;
}

.terminal.negative {
    background: #34495e;
}

.battery-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    font-size: 8px;
    font-weight: bold;
}

.battery-label {
    margin-bottom: 2px;
}

.battery-voltage {
    font-size: 6px;
    opacity: 0.8;
}

.base-connections {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
}

.base-wire {
    width: 2px;
    height: 8px;
    border-radius: 1px;
}

.base-wire.positive {
    background: #FF6B6B;
}

.base-wire.negative {
    background: #4ECDC4;
}

/* ===== CARDBOARD BASE ===== */
.cardboard-base {
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 20px;
    transform-style: preserve-3d;
}

.base-surface {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #D2B48C, #DDB76F, #D2B48C);
    border-radius: 8px;
    position: relative;
    transform: translateZ(10px);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
    border: 2px solid #B8860B;
    display: flex;
    align-items: center;
    justify-content: center;
}

.corrugation-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: repeating-linear-gradient(
        90deg,
        transparent 0px,
        rgba(184, 134, 11, 0.1) 1px,
        transparent 2px,
        transparent 6px
    );
    border-radius: 6px;
}

.base-label {
    color: #8B4513;
    font-size: 0.7em;
    font-weight: 700;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
    z-index: 10;
    position: relative;
}

/* ===== HOVER EFFECTS ===== */
.popsicle-stick:hover {
    filter: brightness(1.1);
    transform: translate(-50%, -50%) translateY(-3px) scale(1.02);
}

.popsicle-stick:hover .stick-body {
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.4),
        inset 1px 0 3px rgba(255, 255, 255, 0.4),
        inset -1px 0 3px rgba(0, 0, 0, 0.2);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .tower-visualization {
        order: 1;
        min-height: 400px;
    }
    
    .scene-container {
        transform: scale(0.8) rotateX(-10deg) rotateY(15deg);
    }
}

@media (max-width: 768px) {
    .visualization-header {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .scene-container {
        transform: scale(0.6) rotateX(-10deg) rotateY(15deg);
    }
}