@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:wght@400;600;700&family=Source+Sans+3:wght@400;600;700&display=swap');

:root {
    --primary: #1e3a5f;
    --primary-light: #f5f7fa;
    --accent: #c17835;
    --success: #4a7c59;
    --success-light: #f2f6f3;
    --error: #a8534a;
    --error-light: #f8f3f2;
    --text-primary: #2c2c2c;
    --text-secondary: #5a5a5a;
    --cream: #fdfbf7;
    --off-white: #f9f7f4;
    --border: #d4cfc7;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: 'Source Sans 3', -apple-system, sans-serif;
    background-color: var(--cream);
    background-image:
        linear-gradient(rgba(30, 58, 95, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 58, 95, 0.02) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    padding: 40px 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--off-white);
    padding: 60px 60px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 48px;
    gap: 40px;
}

.title-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

h1 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-style: italic;
    border-left: 3px solid var(--accent);
    padding-left: 16px;
}

/* Game Info */
.info-item {
    background: var(--cream);
    padding: 20px 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.info-value {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

/* Chart Container */
.chart-container {
    background: var(--cream);
    padding: 50px 60px;
    border: 2px solid var(--primary);
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

#myChart {
    height: 240px !important;
}

.chart-container::before,
.chart-container::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border: 2px solid var(--primary);
    background: var(--cream);
}

.chart-container::before {
    top: -2px;
    left: -2px;
    border-right: none;
    border-bottom: none;
}

.chart-container::after {
    bottom: -2px;
    right: -2px;
    border-left: none;
    border-top: none;
}

/* Feedback */
.feedback {
    min-height: 60px;
    margin-bottom: 32px;
    padding: 18px 28px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.feedback.correct {
    background: var(--success-light);
    color: var(--success);
    border-left-color: var(--success);
    border-top: 1px solid var(--success);
    border-bottom: 1px solid var(--success);
}

.feedback.incorrect {
    background: var(--error-light);
    color: var(--error);
    border-left-color: var(--error);
    border-top: 1px solid var(--error);
    border-bottom: 1px solid var(--error);
}

/* Explanation */
.explanation {
    margin: 16px 0 24px 0;
    padding: 16px 24px;
    background: rgba(108, 117, 125, 0.08);
    border-left: 3px solid rgba(108, 117, 125, 0.5);
    border-radius: 4px;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #495057;
    display: none;
}

.explanation.visible {
    display: block;
}

.explanation strong {
    color: #212529;
    font-weight: 600;
}

/* Buttons */
.button-container {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 32px;
    transform-origin: bottom;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.button-container.hiding {
    animation: shrinkDown 0.3s ease forwards;
}

.button-container.showing {
    animation: expandUp 0.3s ease forwards;
}

@keyframes shrinkDown {
    from {
        transform: scaleY(1);
        opacity: 1;
    }
    to {
        transform: scaleY(0);
        opacity: 0;
    }
}

@keyframes expandUp {
    from {
        transform: scaleY(0);
        opacity: 0;
    }
    to {
        transform: scaleY(1);
        opacity: 1;
    }
}

button {
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid var(--primary);
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: 'Source Sans 3', sans-serif;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.875rem;
    background: transparent;
}

.btn-significant {
    background: var(--primary);
    color: var(--cream);
    position: relative;
}

.btn-significant:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateX(-2px) translateY(-2px);
    box-shadow: 4px 4px 0 var(--primary);
}

.btn-not-significant {
    background: var(--cream);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-not-significant:hover {
    background: var(--primary);
    color: var(--cream);
    transform: translateX(-2px) translateY(-2px);
    box-shadow: 4px 4px 0 var(--accent);
}

.btn-next {
    background: var(--primary);
    color: var(--cream);
}

.btn-next:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateX(-2px) translateY(-2px);
    box-shadow: 4px 4px 0 var(--primary);
}

button:active {
    transform: translateX(0) translateY(0);
    box-shadow: none;
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Hidden Elements */
.hidden {
    display: none;
}

/* Final Score */
.final-score {
    display: none;
    background: var(--cream);
    padding: 60px 48px;
    border: 2px solid var(--primary);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.final-score.show {
    display: block;
}

.score-image-container {
    margin-bottom: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.score-image {
    max-width: 300px;
    max-height: 300px;
    width: auto;
    height: auto;
    border: 3px solid var(--primary);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    background: var(--off-white);
    display: block;
}

.final-score h2 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.final-score p {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

#finalScoreValue {
    color: var(--accent);
    font-weight: 700;
    font-size: 2.25rem;
    font-family: 'Crimson Pro', Georgia, serif;
}

.score-message {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    padding: 20px;
    background: var(--off-white);
    border-left: 3px solid var(--accent);
    font-style: italic;
}

/* Settings Panel */
.settings-panel {
    background: var(--cream);
    border: 1px solid var(--border);
    margin-top: 48px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.settings-toggle {
    width: 100%;
    padding: 20px 28px;
    background: var(--cream);
    border: none;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    transition: background 0.2s ease;
}

.settings-toggle:hover {
    background: var(--off-white);
}

.settings-icon {
    font-size: 1.125rem;
}

.arrow {
    margin-left: auto;
    transition: transform 0.3s ease;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.settings-toggle.open .arrow {
    transform: rotate(180deg);
}

.settings-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.settings-content.open {
    max-height: 600px;
    padding: 32px 28px;
    background: var(--off-white);
}

.setting-item {
    margin-bottom: 32px;
}

.setting-item:last-of-type {
    margin-bottom: 28px;
}

.setting-item label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.setting-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

.setting-value {
    font-family: 'Crimson Pro', Georgia, serif;
    font-weight: 700;
    color: var(--accent);
    font-size: 1.125rem;
}

.setting-options {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.option-btn {
    flex: 1;
    padding: 12px;
    background: var(--cream);
    border: 2px solid var(--border);
    color: var(--text-primary);
    font-weight: 600;
    transition: all 0.2s ease;
}

.option-btn:hover {
    border-color: var(--primary);
    background: var(--off-white);
}

.option-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--cream);
}

.range-inputs {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 12px;
}

.month-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    background: var(--cream);
    font-size: 1rem;
    font-family: 'Crimson Pro', Georgia, serif;
    font-weight: 600;
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.month-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--off-white);
}

.range-separator {
    color: var(--text-secondary);
    font-weight: 500;
}

.setting-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-style: italic;
}

.apply-settings-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: var(--cream);
    font-weight: 600;
    border: 2px solid var(--primary);
    margin-top: 12px;
}

.apply-settings-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 40px 32px;
    }

    .header-row {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 32px;
    }

    .title-group {
        gap: 12px;
    }

    h1 {
        font-size: 2.25rem;
    }

    .chart-container {
        padding: 36px 32px;
    }
}

@media (max-width: 640px) {
    body {
        padding: 20px 12px;
    }

    .container {
        padding: 32px 24px;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .chart-container {
        padding: 24px;
    }

    .button-container {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

    .final-score {
        padding: 40px 28px;
    }

    .score-image {
        max-width: 200px;
        max-height: 200px;
    }
}