body {
    font-family: Arial, sans-serif;
    margin: 15px;
    font-size: 18px;
}

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

#days {
    display: flex;
    justify-content: space-between;
    margin: 15px 0;
}

#days button {
    font-size: 18px;
    padding: 10px;
    min-width: 42px;
    border-radius: 8px;
}


#exercises div {
    border: 1px solid #ccc;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 15px;
}


h3 {
    font-size: 24px;
    margin-top: 0;
}


label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 12px 0;
}


input {
    font-size: 22px;
    width: 90px;
    padding: 5px;
    text-align: center;
}


#exercises button {
    width: 100%;
    font-size: 20px;
    padding: 12px;
    margin-top: 10px;
}

#days button.selected {
    font-weight: bold;
    transform: scale(1.15);
}

#login {
    max-width: 400px;
    margin: 40px auto;
    text-align: center;
}

#login input {
    width: 150px;
    font-size: 32px;
    letter-spacing: 8px;
    margin: 20px;
}

#login button {
    font-size: 22px;
    padding: 12px 20px;
    border-radius: 10px;
}

.login-screen {
    text-align: center;
    margin-top: 40px;
}

.exercise-image {
    display: block;
    max-width: 250px;
    width: 100%;
    height: auto;
    margin: 12px auto;
    border-radius: 10px;
}
.attribution {
    margin: 30px auto 10px;
    max-width: 600px;
    text-align: center;
    font-size: 0.7rem;
    color: #999;
}

.attribution a {
    color: inherit;
    text-decoration: underline;
}

.attribution a:hover {
    color: #333;
}

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

.header-actions {
    display: flex;
    gap: 8px;
}

.header-button {
    padding: 3px 8px;
    font-size: 0.7rem;
    line-height: 1.2;
    width: auto;
    min-width: 0;
    height: auto;
    border-radius: 8px;
  
}

.header-title h1 {
    margin: 0 8px 0 0;
}

.header-title p {
    margin: 2px 0 0;
    font-size: 0.85rem;
    color: #777;
}

.exercise-meta {
    font-size: 0.9rem;
    color: #666;
    margin-top: 8px;
}