:root {
    --color-calculator-primary: #007c5a;
    --color-calculator-primary-dark: #005a3c;
    --color-accent: #2a4fb2;
    --color-success: #4CAF50;
    --color-error: red;
    --color-bg-light: #f8f8f8;
    --color-bg-highlight: #f0f4ff;
    --color-border: #ccc;
    --radius: 10px;
    --font-small: 12px;
    --font-medium: 14px;
    --font-large: 24px;
}

/* Calculator Layout */
.calculator-container {
    background: #fff;
    padding: 0.75rem;
    border-radius: var(--radius);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 1200px;
    margin: auto;
}

.calculator-title {
    color: var(--color-calculator-primary) !important;
    font-size: var(--font-large);
    font-weight: bold;
    text-align: left;
    margin: 0 0 1rem 2px;
}

.calculator-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 2rem;
}

@media (max-width: 920px) {
    .calculator-content {
        grid-template-columns: 1fr;
    }
}

/* Form Elements */
.calculator-input-group {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.calculator-input-group label {
    font-weight: bold;
    margin-bottom: 0.5rem;
    padding-left: 2px;
    font-size: var(--font-small);
}

.calculator-input-group input,
.calculator-input-group select {
    padding: 8px !important;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: var(--font-medium);
}

.input-error {
    border: 2px solid var(--color-error) !important;
    background-color: #ffe6e6;
}

.disabled-button {
    background-color: #ccc !important;
    cursor: not-allowed !important;
    opacity: 0.6;
}

/* Button */
button#calculate {
    grid-column: 1 / -1;
    justify-self: center;
    background-color: var(--color-calculator-primary);
    color: #fff;
    padding: 0.5em 1em;
    border: none;
    font-size: var(--font-medium);
    width: 100%;
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
    transition: background-color 0.3s ease;
}

button#calculate:not(.disabled-button):hover {
    background-color: var(--color-calculator-primary-dark);
}

/* Calculation Results */
.calculator-results {
    grid-column: 1 / -1;
    margin-top: 1rem;
    padding: 0.5rem;
    background: var(--color-bg-light);
    border-radius: var(--radius);
}

.calculator-results h3 {
    color: #333;
    font-size: var(--font-medium);
    font-weight: 100;
}

.calculator-results span {
    font-weight: 800;
}

/* No Result Message */
.no-result-message {
    padding: 0.75em;
    background-color: var(--color-bg-highlight);
    border: 1px solid #b3c7ff;
    border-radius: var(--radius);
    margin-top: 2em;
    text-align: center;
}

.no-result-message h2 {
    color: var(--color-accent);
}

/* Links */
.contact-link,
.shop-link {
    display: inline-block;
    margin-top: 0.5em;
    padding: 0.5em 1em;
    background-color: var(--color-accent);
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: bold;
    transition: background-color 0.2s ease;
}

.shop-link {
    padding: 0.5em 1.2em;
}

.shop-link:hover {
    text-decoration: none;
}

/* Robot Cards */
.robot-card {
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius);
    padding: 0.75em;
    margin: 2em auto;
    max-width: 320px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    text-align: center;
    position: relative;
}

.robot-card:hover {
    transform: translateY(-4px);
}

.best-robot {
    border-color: var(--color-success);
    background: #f0fff4;
}

.robot-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    background: var(--color-success);
    color: #fff;
    padding: 0.3em 0.8em;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: bold;
}

.robot-name {
    color: #2a8a40;
    font-size: 1.4em;
    font-weight: bold;
    margin: 0.5em 0;
}

.robot-details {
    list-style: none;
    padding: 0;
    font-size: var(--font-medium);
    color: #333;
    margin-top: 1em;
    text-align: left;
}

.robot-details li {
    padding: 0.4em 0;
    border-bottom: 1px dashed var(--color-border);
}

.robot-details li:last-child {
    border-bottom: none;
}

/* Layout for Multiple Robots */
#robot-results {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

#robot-results hr {
    display: none;
}

.calculator-results {
    text-align: center;
}

.shop-link {
    font-size: 14px;
    font-weight: 100;
    text-decoration: none;
}
.shop-link:hover {
    color: #ffffff;
}