:root {
    --accent-color: #00e5ff; /* Bright Neon Cyan */
    --text-color: #f0f8ff; /* AliceBlue - a very light, soft white */
    --subtle-text-color: #a0b3c2;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-background: rgba(255, 255, 255, 0.05);
    --glow-color: rgba(0, 229, 255, 0.4);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.main-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard {
    display: flex;
    justify-content: center;
    gap: 2rem;
    height: 75vh;
}

.panel {
    background: var(--card-background);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px); /* For Safari */
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    display: flex;
    flex-direction: column;
}

.left-panel {
    flex-basis: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.right-panel {
    flex-basis: 55%;
    padding: 1.5rem;
    min-height: 0; /* Important for flex containers */
}

.panel-content {
    width: 100%;
    max-width: 350px;
    text-align: center;
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

header h1:hover {
    color: var(--text-color);
}

header .subtitle {
    color: var(--accent-color);
    margin-bottom: 3rem;
    transition: color 0.3s ease;
}

header .subtitle:hover {
    color: var(--text-color);
}

.input-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--subtle-text-color);
    transition: color 0.3s ease; /* Added transition for hover */
}

.input-group label:hover { /* Added hover effect for labels */
    color: var(--accent-color);
}

.input-group input {
    width: 100%;
    padding: 1rem;
    background-color: rgba(15, 23, 42, 0.7); /* Darker, semi-transparent */
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s;
}

.input-group input:hover {
    border-color: var(--accent-color);
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--glow-color);
}

#generateBtn {
    width: 100%;
    padding: 1rem;
    background-color: var(--accent-color);
    color: #0f172a;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px var(--glow-color);
}

#generateBtn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px var(--glow-color), 0 0 50px var(--glow-color);
}

.output-container {
    display: flex;
    flex-flow: column wrap;
    max-height: 480px;
    align-content: flex-start;
    gap: 1rem; /* Gap for both rows and columns */
    overflow-y: hidden; /* Hide vertical scrollbar */
    overflow-x: auto; /* Allow horizontal scroll if columns overflow */
    padding-bottom: 1rem; /* Add padding for scrollbar */
}

.output-container::-webkit-scrollbar {
    height: 8px; /* For horizontal scrollbar */
}
.output-container::-webkit-scrollbar-track {
    background: transparent;
}
.output-container::-webkit-scrollbar-thumb {
    background-color: var(--accent-color);
    border-radius: 4px;
}
.output-container::-webkit-scrollbar-thumb:hover {
    background-color: #00b8d4;
}


.placeholder {
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--subtle-text-color);
}

.placeholder svg {
    stroke: var(--subtle-text-color);
}

.table-entry {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    width: calc(50% - 0.5rem); /* 50% minus half the gap */
    flex-shrink: 0;
    background-color: rgba(15, 23, 42, 0.5);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUpFadeIn 0.5s ease forwards;
    transition: transform 0.2s ease, background-color 0.2s ease;
    break-inside: avoid-column;
}

.table-entry:hover {
    transform: scale(1.02); /* Subtle scale-up effect */
    background-color: rgba(0, 229, 255, 0.1);
}

.table-entry span {
    font-weight: 500;
}

.table-entry .operator, .table-entry .equals {
    color: var(--subtle-text-color);
    padding: 0 0.5rem;
}

.table-entry .result {
    color: var(--accent-color);
    font-weight: 700;
}

@keyframes slideUpFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}