:root {
    /* BlueprintJS Colors (Light Theme) */
    --bp-dark-gray-1: #182026;
    --bp-dark-gray-3: #5C7080;
    --bp-dark-gray-5: #A7B6C2;
    --bp-gray-1: #C5D9E8;
    --bp-light-gray-1: #F5F8FA;
    --bp-light-gray-2: #EBF1F5;
    --bp-blue-3: #106BA3;
    --bp-white: #FFFFFF;
    --bp-border: rgba(16, 22, 26, 0.15);

    --bp-font-family: -apple-system, "BlinkMacSystemFont", "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Open Sans", "Helvetica Neue", "Icons16", sans-serif;
}

body {
    font-family: var(--bp-font-family);
    background-color: var(--bp-white);
    color: var(--bp-dark-gray-1);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Header - Mimic Documentation Header */
.app-header {
    background-color: var(--bp-white);
    color: var(--bp-dark-gray-1);
    padding: 0 20px;
    height: 50px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--bp-border);
}

.app-header h1 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    letter-spacing: 0;
}

.game-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    box-sizing: border-box;
}

#round-indicator {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--bp-dark-gray-1);
}

#game-status {
    font-size: 14px;
    color: var(--bp-dark-gray-3);
    /* Muted text */
    margin-bottom: 40px;
}

/* Choices as Blueprint Cards */
.choices-container {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.choice-btn {
    /* Blueprint Button Style */
    background-color: var(--bp-light-gray-1);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0));
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.2), inset 0 -1px 0 rgba(16, 22, 26, 0.1);
    color: var(--bp-dark-gray-1);
    border: none;
    border-radius: 3px;
    /* Sharp-ish Blueprint corners */
    padding: 10px 30px;
    /* Small/Regular button sizing */
    min-height: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: box-shadow 0.1s cubic-bezier(0.4, 1, 0.75, 0.9);
}

.choice-btn:hover {
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.2), inset 0 -1px 0 rgba(16, 22, 26, 0.1), 0 1px 2px rgba(16, 22, 26, 0.2);
    background-color: var(--bp-light-gray-2);
    z-index: 2;
}

.choice-btn:active {
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.2), inset 0 1px 2px rgba(16, 22, 26, 0.2);
    background-color: #D8E1E8;
    background-image: none;
}

.choice-btn i {
    font-size: 16px;
    color: var(--bp-dark-gray-3);
}

.result-message {
    font-size: 14px;
    margin-bottom: 30px;
    padding: 15px;
    background-color: rgba(16, 22, 26, 0.05);
    /* Subtle Block */
    border-radius: 3px;
    color: var(--bp-dark-gray-1);
    border-left: 3px solid var(--bp-dark-gray-5);
    /* Callout style */
}

.scoreboard {
    display: flex;
    gap: 60px;
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid var(--bp-border);
    border-radius: 3px;
    background-color: var(--bp-white);
}

.score-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.score-box .label {
    font-size: 12px;
    font-weight: 700;
    color: var(--bp-dark-gray-3);
    text-transform: uppercase;
    margin-bottom: 5px;
}

.score-box .score {
    font-size: 24px;
    font-weight: 300;
    color: var(--bp-blue-3);
}

/* Primary Intent Button */
.reset-btn {
    background-color: var(--bp-blue-3);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    color: var(--bp-white);
    border: none;
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.4), inset 0 -1px 0 rgba(16, 22, 26, 0.2);
    padding: 10px 40px;
    font-weight: 600;
    font-size: 14px;
    border-radius: 3px;
    cursor: pointer;
}

.reset-btn:hover {
    background-color: #0E5A8A;
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.4), inset 0 -1px 0 rgba(16, 22, 26, 0.2), 0 1px 2px rgba(16, 22, 26, 0.2);
}

.reset-btn:active {
    box-shadow: inset 0 0 0 1px rgba(16, 22, 26, 0.4), inset 0 1px 2px rgba(16, 22, 26, 0.2);
    background-image: none;
}

@media (max-width: 600px) {
    .choices-container {
        flex-direction: column;
        width: 100%;
        align-items: stretch;
    }

    .choice-btn {
        justify-content: center;
    }
}