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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F5F5F5;
    color: #222222;
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.panel {
    background-color: #E0E0E0;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.panel-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #222222;
}

.colorblind-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    background-color: #f9f9f9;
    border: 2px solid #333;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
}

.colorblind-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-weight: 600;
    font-size: 0.9rem;
    color: #222222;
}

.input-hint {
    font-size: 0.8rem;
    color: #555;
    font-style: italic;
}

input[type="number"], input[type="text"], select {
    width: 100%;
    padding: 12px;
    border: 2px solid #333;
    border-radius: 6px;
    background-color: #f9f9f9;
    font-size: 1rem;
    color: #222222;
    height: 48px;
    transition: all 0.2s;
}

input[type="number"]:focus, input[type="text"]:focus, select:focus {
    outline: 3px solid #4A90E2;
    outline-offset: 2px;
    background-color: #ffffff;
}

.primary-input {
    border-left: 4px solid #4A90E2;
}

.secondary-input {
    border-left: 4px solid #FF9500;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 25px;
    flex-wrap: wrap;
}

button {
    padding: 12px 24px;
    border: 2px solid #333;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    height: 48px;
}

button:focus {
    outline: 3px solid #4A90E2;
    outline-offset: 2px;
}

.btn-calculate {
    background-color: #4A90E2;
    color: white;
}

.btn-calculate:hover {
    background-color: #357ABD;
    transform: translateY(-1px);
}

.btn-reset {
    background-color: #f9f9f9;
    color: #222222;
}

.btn-reset:hover {
    background-color: #e0e0e0;
}

.btn-export {
    background-color: #FF9500;
    color: white;
}

.btn-export:hover {
    background-color: #E68600;
}

.results-section {
    scroll-margin-top: 20px;
}

.result-card {
    background-color: #f9f9f9;
    border: 2px solid #333;
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 20px;
}

.result-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: #222222;
    border-bottom: 2px solid #4A90E2;
    padding-bottom: 5px;
}

.result-value {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: #222222;
    margin-bottom: 8px;
    word-break: break-all;
}

.steps-container {
    background-color: #ffffff;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 15px;
    margin-top: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    max-height: 400px;
    overflow-y: auto;
}

.step-line {
    padding: 4px 0;
    border-bottom: 1px solid #eee;
}

.analysis-section {
    background-color: #f0f8ff;
    border-left: 4px solid #4A90E2;
    padding: 15px;
    margin-top: 15px;
    border-radius: 0 6px 6px 0;
}

.recommendation-section {
    background-color: #fff8f0;
    border-left: 4px solid #FF9500;
    padding: 15px;
    margin-top: 15px;
    border-radius: 0 6px 6px 0;
}

.comment-section {
    background-color: #f0fff0;
    border-left: 4px solid #28a745;
    padding: 15px;
    margin-top: 15px;
    border-radius: 0 6px 6px 0;
}

.section-heading {
    font-weight: 600;
    margin-bottom: 8px;
    color: #222222;
}

.svg-container {
    background-color: #ffffff;
    border: 2px solid #333;
    border-radius: 6px;
    padding: 15px;
    margin-top: 15px;
    text-align: center;
    position: relative;
}

.svg-label {
    position: absolute;
    bottom: 5px;
    right: 10px;
    font-size: 0.75rem;
    color: #666;
    font-style: italic;
}

svg {
    max-width: 100%;
    height: auto;
}

.error-message {
    color: #d32f2f;
    background-color: #ffebee;
    border: 2px solid #d32f2f;
    padding: 12px;
    border-radius: 6px;
    margin-top: 10px;
    font-weight: 500;
}

.trademark {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-size: 0.75rem;
    color: #666;
    font-weight: 500;
    background-color: rgba(245, 245, 245, 0.9);
    padding: 4px 8px;
    border-radius: 4px;
}

.disclaimer {
    background-color: #fafafa;
    border: 1px solid #ddd;
    padding: 15px;
    margin-top: 20px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #555;
    font-style: italic;
}

.hidden {
    display: none;
}

/* Colorblind Mode Styles */
body.colorblind-mode .btn-calculate {
    background-color: #f9f9f9;
    color: #222222;
    border: 3px solid #222222;
    position: relative;
}

body.colorblind-mode .btn-calculate::before {
    content: "●";
    margin-right: 8px;
    font-size: 1.2rem;
}

body.colorblind-mode .btn-export {
    background-color: #f9f9f9;
    color: #222222;
    border: 3px dashed #222222;
}

body.colorblind-mode .btn-export::before {
    content: "▼";
    margin-right: 8px;
}

body.colorblind-mode .btn-reset {
    background-color: #f9f9f9;
    color: #222222;
    border: 3px dotted #666;
}

body.colorblind-mode .btn-reset::before {
    content: "✕";
    margin-right: 8px;
}

body.colorblind-mode .primary-input {
    border-left: 6px double #000;
}

body.colorblind-mode .secondary-input {
    border-left: 6px groove #666;
}

body.colorblind-mode input:focus, 
body.colorblind-mode select:focus {
    outline: 4px solid #000;
    outline-offset: 3px;
    box-shadow: inset 0 0 0 2px #000;
}

body.colorblind-mode .result-title {
    border-bottom: 3px double #000;
}

body.colorblind-mode .analysis-section {
    border: 2px solid #000;
    border-left: 8px solid #000;
}

body.colorblind-mode .recommendation-section {
    border: 2px solid #666;
    border-left: 8px solid #666;
}

body.colorblind-mode .comment-section {
    border: 2px solid #444;
    border-left: 8px solid #444;
}

body.colorblind-mode button {
    box-shadow: 2px 2px 0 #000;
}

body.colorblind-mode button:active {
    box-shadow: 0 0 0 #000;
    transform: translate(2px, 2px);
}

.input-grid {
    display: grid;
    gap: 15px;
}

@media (min-width: 640px) {
    .input-grid.cols-2 {
        grid-template-columns: 1fr 1fr;
    }
}

.nested-section {
    margin-top: 15px;
    padding: 15px;
    background-color: rgba(0,0,0,0.03);
    border-radius: 6px;
    border: 1px solid #ccc;
}

.nested-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: #444;
    font-size: 0.95rem;
}