:root {
  --color-1: #E27D60; --color-2: #85DCBA; --color-3: #E8A87C; --color-4: #C38D9E; --color-5: #41B3A3;
  --color-6: #E9C46A; --color-7: #F4A261; --color-8: #E76F51; --color-9: #D4A373; --color-10: #FAEDCB;
  --color-11: #A8DADC; --color-12: #457B9D; --color-13: #1D3557; --color-14: #2A9D8F; --color-15: #264653;
  --color-16: #C9E4DE; --color-17: #A3B18A; --color-18: #588157; --color-19: #A5A58D; --color-20: #F4F1DE;
}

.fifo-wrapper {
    --brutal-border: 3px solid #000;
    --brutal-shadow: 4px 4px 0px #000;
    
    max-width: 1100px; 
    margin: 0 auto;
    font-family: system-ui, -apple-system, sans-serif;
    color: #000;
    background: #fff;
    padding: 25px;
    border: var(--brutal-border);
    border-radius: 16px;
    box-shadow: 6px 6px 0px #000;
}

.fifo-wrapper * { box-sizing: border-box; }

.fifo-header {
    background: #000; padding: 20px; color: #fff;
    border: var(--brutal-border); border-radius: 12px;
    text-align: center; margin-bottom: 25px; box-shadow: var(--brutal-shadow);
}
.fifo-header h2 { margin: 0 0 10px 0; font-size: 2rem; font-weight: 900; color: var(--color-2); text-transform: uppercase; font-family: 'Bungee', 'Courier New', cursive;}
.fifo-header p { margin: 0; font-weight: 600; font-size: 1rem; color: var(--color-10);}

.fifo-layout { display: flex; flex-direction: column; gap: 25px; }
.fifo-col { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 20px;}
@media (min-width: 850px) { .fifo-layout { flex-direction: row; align-items: stretch; } }

/* Cards & Colors */
.fifo-card {
    padding: 20px; border: var(--brutal-border); border-radius: 12px; 
    box-shadow: var(--brutal-shadow); display: flex; flex-direction: column;
}
.fifo-bg-white { background: #fff; }
.fifo-bg-color-1 { background: var(--color-1); }
.fifo-bg-color-10 { background: var(--color-10); }
.fifo-bg-color-11 { background: var(--color-11); }
.fifo-bg-color-16 { background: var(--color-16); }

.fifo-flex-between { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px;}

/* Typography */
.fifo-label { display: block; font-weight: 900; text-transform: uppercase; color: #000; margin-bottom: 12px; font-size: 1.1rem; border-bottom: 2px dashed #000; padding-bottom: 8px;}
.fifo-sub-label { display: block; font-weight: 900; text-transform: uppercase; color: #000; font-size: 0.85rem; margin-bottom: 5px;}
.fifo-card-title { margin: 0 0 20px 0; font-size: 1.5rem; font-weight: 900; text-align: center; text-transform: uppercase;}

/* Inputs */
.fifo-input-row { display: flex; gap: 15px; margin-bottom: 10px; align-items: flex-start;}
.fifo-group { flex: 1; display: flex; flex-direction: column; }
.fifo-input {
    width: 100%; padding: 12px; border: var(--brutal-border); border-radius: 8px;
    font-size: 1.1rem; font-family: 'Courier New', monospace; font-weight: bold;
    outline: none; background: #fff; color: #000; box-shadow: inset 2px 2px 0px rgba(0,0,0,0.1);
}
.fifo-input:focus { background: var(--color-10); border-color: #000; }
.fifo-name-input { font-family: system-ui, sans-serif; }

/* Real-time Reader */
.fifo-reader {
    margin-top: 6px; font-size: 0.85rem; font-weight: 800; color: #d90429;
    background: #fff; padding: 4px 8px; border: 2px solid #000; border-radius: 6px;
    display: inline-block; box-shadow: 2px 2px 0px #000;
}

/* Radio Buttons */
.fifo-radio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fifo-radio-btn { cursor: pointer; }
.fifo-radio-btn input { display: none; }
.fifo-radio-text {
    display: block; text-align: center; padding: 12px; background: #fff;
    border: var(--brutal-border); border-radius: 8px; font-weight: 900; font-size: 0.95rem;
    box-shadow: 3px 3px 0px #000; transition: 0.1s; text-transform: uppercase;
}
.fifo-radio-btn input:checked + .fifo-radio-text {
    background: #000; color: var(--color-11); box-shadow: 0px 0px 0px #000; transform: translate(3px, 3px);
}

/* Buttons */
.fifo-btn-small {
    padding: 8px 12px; background: #fff; border: 2px solid #000; border-radius: 6px;
    font-weight: 900; font-size: 0.9rem; cursor: pointer; box-shadow: 2px 2px 0px #000; transition: 0.1s; text-transform: uppercase;
}
.fifo-btn-small:active { transform: translate(2px, 2px); box-shadow: 0px 0px 0px #000; }

.fifo-btn-del {
    padding: 10px; background: var(--color-8); color: #fff; border: 2px solid #000; border-radius: 8px; font-weight: 900; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 2px 2px 0px #000; transition: 0.1s; height: 48px; margin-top: 24px;
}
.fifo-btn-del:active { transform: translate(2px, 2px); box-shadow: 0px 0px 0px #000; }

.fifo-btn-main {
    width: 100%; padding: 18px; background: #000; color: var(--color-2); 
    border: var(--brutal-border); border-radius: 12px; font-size: 1.3rem; font-weight: 900;
    cursor: pointer; box-shadow: var(--brutal-shadow); transition: 0.1s; text-transform: uppercase;
}
.fifo-btn-main:active { transform: translate(4px, 4px); box-shadow: 0px 0px 0px #000; }

/* Dynamic Row Container */
.fifo-row-wrapper { background: rgba(255,255,255,0.5); padding: 12px; border: 2px dashed #000; border-radius: 8px; margin-bottom: 12px; position: relative;}

/* Result Output */
.fifo-result-group {
    border: var(--brutal-border); border-radius: 12px; padding: 15px;
    text-align: center; box-shadow: 3px 3px 0px #000;
}
.fifo-result-label { font-weight: 900; text-transform: uppercase; margin-bottom: 5px; font-size: 0.9rem;}
.fifo-result-value { font-size: 2.2rem; font-weight: 900; font-family: 'Courier New', monospace; color: #000; word-break: break-all;}
.fifo-result-sub { font-weight: 900; font-size: 1rem; margin-top: 5px; color: #333; font-family: 'Courier New', monospace;}

.fifo-divider { border: 0; border-top: 2px dashed #000; margin: 20px 0; }

.fifo-breakdown {
    background: #f9f9f9; padding: 15px; border: 2px solid #000; border-radius: 8px; font-family: 'Courier New', monospace; font-weight: bold; font-size: 0.95rem; line-height: 1.6; max-height: 300px; overflow-y: auto; box-shadow: inset 2px 2px 0px rgba(0,0,0,0.1);
}
.fifo-breakdown p { margin: 0 0 8px 0; padding-bottom: 8px; border-bottom: 1px dashed #ccc;}
.fifo-breakdown p:last-child { border: none; margin: 0; padding: 0;}
.fifo-hl { background: var(--color-2); padding: 2px 6px; border-radius: 4px; border: 1px solid #000;}

/* Error Box */
.fifo-error-box {
    background: var(--color-8); color: #fff; padding: 15px; border: var(--brutal-border);
    border-radius: 8px; font-weight: 900; text-align: center; margin-bottom: 20px;
    box-shadow: var(--brutal-shadow); display: none; text-transform: uppercase;
}
.fifo-shake { animation: fifoShake 0.4s cubic-bezier(.36,.07,.19,.97) both; }
@keyframes fifoShake {
  10%, 90% { transform: translate3d(-2px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

/* Info Box */
.fifo-info-box { background: var(--color-20); padding: 20px; border: var(--brutal-border); border-radius: 12px; margin-top: 20px; box-shadow: var(--brutal-shadow);}
.fifo-info-box h4 { margin: 0 0 10px 0; font-weight: 900; color: #000; font-size: 1.1rem; text-transform: uppercase;}
.fifo-info-box p { margin: 0 0 10px 0; font-size: 0.95rem; font-weight: 600; line-height: 1.5;}
.fifo-info-box p:last-child { margin: 0; }