:root {
    --rc-bg-color: #f9f9f9;
    --rc-text-color: #333;
    --rc-border-color: #e0e0e0;
    --rc-canvas-bg: #fff;
    --rc-btn-bg: #fff;
    --rc-btn-hover-bg: #f0f0f0;
    --rc-suggestion-bg: #f5fbff;
    --rc-suggestion-border: #0073aa;
    --rc-primary: #0073aa;
    --rc-input-border: #ccc;
    --rc-modal-bg: #fefefe;
}

.resin-calculator-app.rc-dark-mode {
    --rc-bg-color: #1e1e1e;
    --rc-text-color: #e0e0e0;
    --rc-border-color: #444;
    --rc-canvas-bg: #2a2a2a;
    --rc-btn-bg: #333;
    --rc-btn-hover-bg: #444;
    --rc-suggestion-bg: #2d3748;
    --rc-suggestion-border: #4a5568;
    --rc-primary: #4fc3f7;
    --rc-input-border: #555;
    --rc-modal-bg: #2a2a2a;
}

.resin-calculator-app {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    border: 1px solid var(--rc-border-color);
    padding: 15px;
    border-radius: 8px;
    background-color: var(--rc-bg-color);
    color: var(--rc-text-color);
    max-width: 1440px;
    width: 120%;
    transform: translateX(-8.33%); 
    margin: 20px auto;
    transition: background-color 0.3s, color 0.3s;
}

.rc-main-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.rc-canvas-container {
    flex: 2;
    min-width: 400px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#rc-canvas {
    width: 100%;
    height: 500px;
    background-color: var(--rc-canvas-bg);
    cursor: crosshair;
    border: 1px solid var(--rc-border-color);
    border-radius: 4px;
}

.rc-controls-container {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.rc-controls-container h4 {
    margin-top: 10px;
    margin-bottom: 5px;
    border-bottom: 1px solid var(--rc-border-color);
    padding-bottom: 5px;
    color: var(--rc-text-color);
}

.rc-control-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.rc-slider-group {
    width: 100%;
}

.rc-slider-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
}

.rc-slider-group input[type="range"] {
    width: 100%;
}

.rc-btn, .rc-tool-btn {
    padding: 4px 8px;
    border: 1px solid var(--rc-input-border);
    background-color: var(--rc-btn-bg);
    color: var(--rc-text-color);
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
    font-size: 14px;
}

.rc-btn:hover, .rc-tool-btn:hover {
    background-color: var(--rc-btn-hover-bg);
    border-color: var(--rc-input-border);
}

.rc-btn.active, .rc-tool-btn.active {
    background-color: var(--rc-primary);
    color: #fff;
    border-color: var(--rc-primary);
}

.rc-tool-btn {
    font-size: 18px;
    line-height: 1;
}

.rc-tool-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.rc-results {
    background-color: var(--rc-btn-bg);
    border: 1px solid var(--rc-border-color);
    padding: 15px;
    border-radius: 4px;
    color: var(--rc-text-color);
}

.rc-results p {
    margin: 0 0 10px;
}

.rc-results p:last-child {
    margin-bottom: 0;
}

.rc-suggestions-container h4 {
    margin-top: 0;
    margin-bottom: 10px;
}

.rc-suggestions-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.rc-suggestion-box {
    flex: 1;
    min-width: 220px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 10px;
    border: 1px dashed var(--rc-suggestion-border);
    border-radius: 4px;
    background-color: var(--rc-suggestion-bg);
}

.rc-suggestion-image {
    max-width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

.rc-suggestion-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.rc-suggestion-details .rc-suggestion-title {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    text-decoration: none;
    color: var(--rc-primary);
}

.rc-suggestion-details .rc-suggestion-title:hover {
    text-decoration: underline;
}

.rc-suggestion-details p {
    font-size: 13px;
    margin: 0 0 10px;
    flex-grow: 1;
}

.rc-suggestion-details .rc-btn {
    padding: 6px 10px;
    align-self: flex-start;
}

/* Modal */
.rc-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
}

.rc-modal-content {
    background-color: var(--rc-modal-bg);
    color: var(--rc-text-color);
    margin: auto;
    padding: 20px;
    border: 1px solid var(--rc-border-color);
    width: 80%;
    max-width: 500px;
    border-radius: 8px;
    position: relative;
}

.rc-modal-close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.rc-modal-close:hover,
.rc-modal-close:focus {
    color: black;
}

#rc-email-input {
    width: 100%;
    padding: 8px;
    margin: 10px 0;
    box-sizing: border-box;
}

#rc-email-status {
    margin-top: 10px;
    font-size: 14px;
}

.rc-version {
    font-size: 11px;
    font-weight: normal;
    color: #999;
    margin-left: 8px;
}