/* Colors */
:root {
    --background-color: #FDFBF7; /* Soft Cream */
    --text-color: #1E293B; /* Slate */
    --primary-accent: #0D9488; /* Teal */
    --secondary-accent: #FF6B6B; /* Coral */
    --secondary-accent-darker: #EE5A6F; /* Darker Coral for gradient */
    --border-color: #E8E5E0; /* Light Beige for borders */
    --container-bg: white;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Align to top */
    min-height: 100vh;
    box-sizing: border-box;
}

.container {
    background-color: var(--container-bg);
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 900px; /* Adjust as needed */
    text-align: center;
    border: 2px solid var(--border-color);
}

h1 {
    color: var(--primary-accent);
    margin-bottom: 30px;
    font-size: 2.5em;
    font-weight: 700;
}

h2 {
    color: var(--primary-accent);
    margin-bottom: 20px;
    font-size: 1.5em;
    font-weight: 700;
}

.content-wrapper {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.table-container,
.operations-container {
    background-color: var(--container-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 2px solid var(--border-color);
    flex: 1; /* Allow them to grow */
    min-width: 280px; /* Prevent excessive shrinking */
}

.table-container {
    text-align: left;
}

#array-table tbody tr td {
    padding: 8px 0;
}

#array-table input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #f9f9f9; /* Slightly off-white for inputs */
    font-size: 1em;
    color: var(--text-color);
    box-sizing: border-box;
    transition: border-color 0.2s ease-in-out;
}

#array-table input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 2px rgba(13, 148, 136, 0.2);
}

.operations-container {
    display: flex;
    flex-direction: column;
    align-items: stretch; /* Stretch buttons to fill width */
}

.operation-btn, .all-btn {
    background-color: var(--primary-accent);
    color: white;
    padding: 12px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 700;
    transition: background-color 0.2s ease-in-out, transform 0.1s ease-in-out, box-shadow 0.2s ease-in-out;
    margin-bottom: 10px; /* Space between buttons */
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.operation-btn:last-child {
    margin-bottom: 0;
}

.operation-btn:hover, .all-btn:hover {
    background-color: var(--primary-accent); /* Keep same on hover for consistency */
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.all-btn {
    background-color: var(--secondary-accent);
    margin-top: 15px;
    margin-bottom: 20px; /* More space before the All button */
}

.all-btn:hover {
    background-color: var(--secondary-accent-darker);
}

.results-display {
    margin-top: 20px;
    padding: 15px;
    background-color: #f7f7f7; /* Very light gray for results area */
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: left;
    min-height: 50px; /* Ensure it has some height */
    font-size: 0.95em;
}

.result-item {
    margin-bottom: 8px;
}
.result-item:last-child {
    margin-bottom: 0;
}

.summary-display {
    margin-top: 30px;
    padding: 20px;
    background-color: var(--container-bg);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 2px solid var(--border-color);
    text-align: left;
    font-size: 0.95em;
}

.summary-display h3 {
    color: var(--primary-accent);
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.summary-display ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.summary-display li {
    margin-bottom: 8px;
}

.back-home-btn {
    display: inline-block;
    margin-top: 30px;
    padding: 12px 25px;
    background: linear-gradient(to bottom, var(--secondary-accent), var(--secondary-accent-darker));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1em;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    box-shadow: 0 3px 8px rgba(255, 107, 107, 0.4); /* Shadow matching coral */
}

.back-home-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(255, 107, 107, 0.5);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .content-wrapper {
        flex-direction: column;
        gap: 20px;
    }

    .table-container,
    .operations-container {
        min-width: unset; /* Remove min-width constraint */
        width: 100%; /* Take full width */
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.3em;
    }

    .operation-btn, .all-btn {
        padding: 10px 15px;
        font-size: 0.95em;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px;
    }
    h1 {
        font-size: 1.8em;
    }
    .back-home-btn {
        padding: 10px 20px;
        font-size: 0.9em;
    }
}