:root {
    --primary-color: #00F0FF;
    /* Neon Cyan */
    --secondary-color: #7000FF;
    /* Neon Purple */
    --bg-color: #0f172a;
    /* Dark Blue/Slate */
    --card-bg: rgba(30, 41, 59, 0.7);
    /* Glassmorphism */
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --success-color: #00ff9d;
    --danger-color: #ff0055;
    --input-bg: rgba(15, 23, 42, 0.6);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    /* Prevent scrolling on body */
}

/* Background gradient accent */
body::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(112, 0, 255, 0.2) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.screen {
    display: none;
    flex-direction: column;
    height: 100%;
    padding: 20px;
    overflow-y: auto;
    position: relative;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.screen.active {
    display: flex;
    opacity: 1;
}

/* Headers */
.header {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

h1 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    background: linear-gradient(90deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 15px 0 10px;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Buttons */
.btn {
    border: none;
    border-radius: 12px;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #5000CC);
    color: white;
    box-shadow: 0 0 15px rgba(112, 0, 255, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #00cc7a);
    color: #0f172a;
    box-shadow: 0 0 15px rgba(0, 255, 157, 0.3);
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.btn-neon {
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

/* Screen 1: Scanner */
.scanner-container {
    flex: 1;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
    background: #000;
    box-shadow: 0 0 0 1px var(--border-color);
}

#video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
}

.scanner-frame {
    width: 250px;
    height: 250px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2), inset 0 0 20px rgba(0, 240, 255, 0.2);
    position: relative;
}

/* Scanner scanning ray animation */
.scanner-frame::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
    animation: scanRay 2s infinite ease-in-out;
}

@keyframes scanRay {
    0% {
        top: 10%;
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        top: 90%;
        opacity: 0;
    }
}

.scanner-hint {
    color: white;
    margin-top: 20px;
    font-size: 14px;
    background: rgba(0, 0, 0, 0.6);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

/* Bottom Button Container */
.bottom-container {
    margin-top: auto;
    padding-bottom: 20px;
    /* Safe area */
}

/* Screen 2: Deal Info */
.deal-display-compact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    /* Compact gap */
    margin-bottom: 15px;
}

.deal-row {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.field-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.field-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    text-align: right;
    max-width: 60%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Highlighted specific values */
#deal-stage-display {
    color: var(--primary-color);
}

/* PIN Section */
.pin-section-compact {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.pin-input-display {
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    letter-spacing: 5px;
    font-family: monospace;
}

.pin-input-display:focus {
    outline: none;
}

.pin-keyboard-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.pin-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 20px;
    padding: 15px 0;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.pin-btn:active {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
}

/* Controls grouping (Back + Confirm) */
.controls-group {
    display: flex;
    gap: 15px;
    margin-top: auto;
    /* Push to bottom */
}

.btn-back {
    flex: 1;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 12px;
    border-radius: 10px;
    font-size: 14px;
}

.btn-confirm {
    flex: 1;
    background: var(--primary-color);
    color: #0f172a;
    border: none;
    padding: 12px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

/* Screen 3: Production */
.employee-compact {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 15px;
    padding: 0 5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.employee-compact span {
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    margin-left: 4px;
}

select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 16px;
    font-size: 16px;
    /* Larger text */
    border-radius: 12px;
    appearance: none;
    /* Remove default arrow */
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300F0FF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.2);
}

.operations-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    max-height: 200px;
    /* Scrollable if too many */
    overflow-y: auto;
}

.operation-item {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-color);
    cursor: pointer;
    flex: 1 1 calc(50% - 10px);
    /* 2 columns */
    text-align: center;
    transition: all 0.2s;
}

.operation-item.selected {
    background: rgba(0, 240, 255, 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

/* Footer buttons Screen 3 */
.buttons-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
    padding-top: 20px;
    padding-bottom: 20px;
}

.btn-execute {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.btn-finish {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}