:root {
    --bg0: #fbf1c7;
    --bg1: #ebdbb2;
    --bg2: #d5c4a1;
    --bg3: #bdae93;
    --bg4: #a89984;
    --fg0: #282828;
    --fg1: #3c3836;
    --fg2: #504945;
    --fg3: #665c54;
    --fg4: #7c6f64;
    --red: #cc241d;
    --green: #98971a;
    --yellow: #d79921;
    --blue: #458588;
    --purple: #b16286;
    --aqua: #689d6a;
    --orange: #d65d0e;
    --gray: #928374;
}

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

body {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    background-color: var(--bg0);
    color: var(--fg0);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--bg2);
    padding-bottom: 0.75rem;
}

header h1 {
    font-size: 1.8rem;
    color: var(--blue);
    margin-bottom: 0.25rem;
}

header p {
    color: var(--fg2);
    font-size: 0.9rem;
}

.calculation-form {
    background-color: var(--bg1);
    border: 1px solid var(--bg3);
    border-radius: 6px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.calculation-form h2 {
    color: var(--fg0);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group.compact {
    margin-bottom: 0.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--fg1);
    font-weight:500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--bg3);
    border-radius: 4px;
    background-color: var(--bg0);
    color: var(--fg0);
    font-family: inherit;
    font-size: 0.9rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(69, 133, 136, 0.1);
}

.probability-inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.prob-input {
    display: flex;
    flex-direction: column;
}

.prob-input label {
    font-size: 0.85rem;
    color: var(--fg2);
    margin-bottom:0.25rem;
    font-weight: 500;
}

.prob-input input {
    padding: 0.5rem;
    border: 1px solid var(--bg3);
    border-radius: 4px;
    background-color: var(--bg0);
    color: var(--fg0);
    font-family: inherit;
    font-size: 0.9rem;
}

.prob-input input:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(69, 133, 136, 0.1);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

button {
    background-color: var(--blue);
    color: var(--bg0);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--aqua);
}

button:active {
    transform: translateY(1px);
}

button.secondary {
    background-color: var(--gray);
}

button.secondary:hover {
    background-color: var(--fg3);
}

.result {
    background-color: var(--green);
    color: var(--bg0);
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-value {
    font-size: 1.1rem;
    font-weight: 600;
}

.interpretation {
    font-size: 0.85rem;
    opacity: 0.9;
}

.hidden {
    display: none;
}

.history {
    background-color: var(--bg1);
    border: 1px solid var(--bg3);
    border-radius: 6px;
    padding: 1.25rem;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.history-header h2 {
    color: var(--fg0);
    font-size: 1.2rem;
}

.controls {
    display: flex;
    gap: 0.5rem;
}

.controls button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    background-color: var(--bg2);
    color: var(--fg1);
}

.controls button:hover {
    background-color: var(--blue);
    color: var(--bg0);
}

.controls button#clear-btn {
    background-color: var(--bg2);
}

.controls button#clear-btn:hover {
    background-color: var(--red);
    color: var(--bg0);
}

.calculations-list {
    min-height: 200px;
}

.empty-state {
    text-align: center;
    color: var(--fg3);
    font-style: italic;
    padding: 2rem;
}

.calculation-item {
    background-color: var(--bg0);
    border: 1px solid var(--bg2);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom:0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.calculation-item:hover {
    background-color: var(--bg1);
    transform: translateX(2px);
}

.calculation-item.expanded {
    background-color: var(--bg1);
}

.calculation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.calculation-question {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--fg0);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calculation-summary {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: 0.85rem;
    color: var(--fg2);
}

.calculation-arrow {
    color: var(--fg3);
}

.calculation-posterior {
    font-weight: 600;
    color: var(--green);
}

.calculation-iterations {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--bg2);
    display: none;
}

.calculation-item.expanded .calculation-iterations {
    display: block;
}

.iteration {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.iteration-number {
    color: var(--fg3);
    font-weight: 500;
    min-width: 20px;
}

.iteration-details {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.iteration-prob {
    color: var(--fg2);
}

.iteration-evidence {
    color: var(--fg3);
    font-style: italic;
    flex: 1;
    min-width: 200px;
}

.iteration-posterior {
    font-weight: 600;
    color: var(--green);
}

.evidence-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bg2);
}

.evidence-section h4 {
    color: var(--fg1);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.evidence-text {
    color: var(--fg2);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.sources-text {
    color: var(--fg3);
    font-size: 0.85rem;
    font-style: italic;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(40, 40, 40, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.hidden {
    display: none !important;
}

.modal-content {
    background-color: var(--bg0);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--bg3);
    min-width: 400px;
    max-width: 90vw;
}

.modal-content h3 {
    color: var(--fg0);
    margin-bottom: 1rem;
}

.share-url {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
}

.share-url input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--bg3);
    border-radius: 4px;
    background-color: var(--bg1);
    color: var(--fg0);
    font-family: inherit;
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }
    
    .history-header {
        flex-direction: column;
        align-items:stretch;
    }
    
    .controls {
        justify-content: center;
    }
    
    .calculation-details {
        grid-template-columns: 1fr;
    }
    
    .calculation-header {
        flex-direction:column;
        gap: 0.5rem;
    }
    
    .calculation-date {
        margin-left: 0;
    }
}